##### Table of Contents





UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549





FORM 20-F





(Mark One)

| ̈ | REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ----------------------------------------------------------------------------------------------

OR



|x | ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ------------------------------------------------------------------------------------

For the fiscal year ended December 31, 2015

OR



| ̈ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | ----------------------------------------------------------------------------------------

For the transition period from
 to

OR



| ̈ | SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
|- | -------------------------------------------------------------------------------------------

Date of event requiring this shell company report

Commission File Number 001-36697





DBV
TECHNOLOGIES S.A.

(Exact name of Registrant as specified in its charter and translation of Registrants name into English)





France

(Jurisdiction of
incorporation or organization)

177-181 avenue Pierre Brossolette

92120 Montrouge France

(Address of principal executive offices)

Dr. Pierre-Henri Benhamou

Chairman and Chief Executive Officer

DBV Technologies S.A.

177-181 avenue Pierre Brossolette

92120 Montrouge France

Tel: +33 1 55 42 78 78 Fax: +33 1 43 26 10 83

(Name, Telephone, E-mail and/or Facsimile number and Address of Company Contact Person)

Securities registered or to be registered pursuant to Section 12(b) of the Act.



|                                                                                                            |  |                                          
|----------------------------------------------------------------------------------------------------------- |  | -----------------------------------------
|Title of each class                                                                                         |  | Name of each exchange on which
registered
|American Depositary Shares, each representing one-half of one ordinary share, nominal value 0.10 per share |  | The Nasdaq Stock Market LLC              
|Ordinary shares, nominal value 0.10 per share*                                                             |  | The Nasdaq Stock Market LLC*             



|* | Not for trading, but only in connection with the registration of the American Depositary Shares.
|- | ------------------------------------------------------------------------------------------------

Securities registered or to be registered pursuant to Section 12(g) of the Act. None

Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act. None

Indicate the number of outstanding shares of each of the issuers classes of capital or common stock as of the close of the period covered by the annual
report.

Ordinary shares, nominal value 0.10 per share: 24,205,129 as of December 31, 2015





Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.     ̈  Yes    x  No

If this
report is an annual or transition report, indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of
1934.     ̈  Yes    x  No

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act
of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    x  Yes     ̈  No

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required
to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).     ̈  Yes    x  No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer. See definition of
accelerated filer and large accelerated filer in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer  x        
        Accelerated filer   ̈                Non-accelerated 
filer   ̈

Indicate by check mark which basis of accounting the registrant has used to prepare the
financial statements included in this filing:



|             |  |                                                                                                          |  |         
|------------ |  | -------------------------------------------------------------------------------------------------------- |  | --------
|U.S. GAAP   ̈ |  | International Financial Reporting Standards as issued
by the International Accounting Standards Board  x |  | Other   ̈

If Other has been checked in response to the previous question, indicate by check mark which financial statement
item the registrant has elected to follow.     ̈  Item 17     ̈  Item 18

If this is an annual report, indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange
Act).     ̈  Yes    x  No









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##### Table of Contents

TABLE OF CONTENTS



|             |  |                                                            |  |      |     | 
|------------ |  | ---------------------------------------------------------- |  | ---- | --- | 
|             |  |                                                            |  | PAGE |    
|INTRODUCTION | 
|             |  |                                                           
|PART I       |  |                                                            |  |      |     | 
|             |  |                                                           
|Item 1.      |  | Identity of Directors, Senior Management and
Advisers      |  |      | 4   | 
|             |  |                                                           
|Item 2.      |  | Offer Statistics and Expected Timetable                    |  |      | 4   | 
|             |  |                                                           
|Item 3.      |  | Key Information                                            |  |      | 4   | 
|             |  | A. Selected Financial Data                                 |  |      | 4   | 
|             |  | B. Capitalization and Indebtedness                         |  |      | 6   | 
|             |  | C. Reasons for the Offer and Use of Proceeds               |  |      | 6   | 
|             |  | D. Risk Factors                                            |  |      | 6   | 
|             |  |                                                           
|Item 4.      |  | Information on the Company                                 |  |      | 47  | 
|             |  | A. History and Development of the Company                  |  |      | 47  | 
|             |  | B. Business Overview                                       |  |      | 47  | 
|             |  | C. Organizational Structure                                |  |      | 88  | 
|             |  | D. Property, Plants and Equipment                          |  |      | 88  | 
|             |  |                                                           
|Item 4A.     |  | Unresolved Staff Comments                                  |  |      | 88  | 
|             |  |                                                           
|Item 5.      |  | Operating and Financial Review and Prospects               |  |      | 88  | 
|             |  | A. Operating Results                                       |  |      | 95  | 
|             |  | B. Liquidity and Capital Resources                         |  |      | 100 | 
|             |  | C. Research and Development, Patents and
Licenses          |  |      | 104 | 
|             |  | D. Trend Information                                       |  |      | 104 | 
|             |  | E. Off-Balance Sheet Arrangements                          |  |      | 104 | 
|             |  | F. Tabular Disclosure of Contractual
Obligations           |  |      | 104 | 
|             |  | G. Safe Harbor                                             |  |      | 105 | 
|             |  |                                                           
|Item 6.      |  | Directors, Senior Management and Employees                 |  |      | 105 | 
|             |  | A. Directors and Senior Management                         |  |      | 105 | 
|             |  | B. Compensation                                            |  |      | 107 | 
|             |  | C. Board Practices                                         |  |      | 117 | 
|             |  | D. Employees                                               |  |      | 120 | 
|             |  | E. Share Ownership                                         |  |      | 120 | 
|             |  |                                                           
|Item 7.      |  | Major Shareholders and Related Party
Transactions          |  |      | 120 | 
|             |  | A. Major Shareholders                                      |  |      | 120 | 
|             |  | B. Related Party Transactions                              |  |      | 123 | 
|             |  | C. Interests of Experts and Counsel                        |  |      | 125 | 
|             |  |                                                           
|Item 8.      |  | Financial Information                                      |  |      | 125 | 
|             |  | A. Consolidated Statements and Other Financial
Information |  |      | 125 | 
|             |  | B. Significant Changes                                     |  |      | 126 | 



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|          |  |                                                                              |  |  |     | 
|--------- |  | ---------------------------------------------------------------------------- |  |  | --- | 
|Item 9.   |  | The Offer and Listing                                                        |  |  | 126 | 
|          |  | A. Offer and Listing Details                                                 |  |  | 126 | 
|          |  | B. Plan of Distribution                                                      |  |  | 127 | 
|          |  | C. Markets                                                                   |  |  | 127 | 
|          |  | D. Selling Shareholders                                                      |  |  | 127 | 
|          |  | E. Dilution                                                                  |  |  | 127 | 
|          |  | F. Expenses of the Issue                                                     |  |  | 127 | 
|          |  |                                                                             
|Item 10.  |  | Additional Information                                                       |  |  | 127 | 
|          |  | A. Share Capital                                                             |  |  | 127 | 
|          |  | B. Memorandum and Articles of Association                                    |  |  | 127 | 
|          |  | C. Material Contracts                                                        |  |  | 127 | 
|          |  | D. Exchange Controls                                                         |  |  | 128 | 
|          |  | E. Taxation                                                                  |  |  | 128 | 
|          |  | F. Dividends and Paying Agents                                               |  |  | 134 | 
|          |  | G. Statement by Experts                                                      |  |  | 134 | 
|          |  | H. Documents on Display                                                      |  |  | 134 | 
|          |  | I. Subsidiary Information                                                    |  |  | 135 | 
|          |  |                                                                             
|Item 11.  |  | Quantitative and Qualitative Disclosures About Market
Risk                   |  |  | 135 | 
|          |  |                                                                             
|Item 12.  |  | Description of Securities Other than Equity
Securities                       |  |  | 136 | 
|          |  | A. Debt Securities                                                           |  |  | 136 | 
|          |  | B. Warrants and Rights                                                       |  |  | 136 | 
|          |  | C. Other Securities                                                          |  |  | 136 | 
|          |  | D. American Depositary Shares                                                |  |  | 136 | 
|          |  |                                                                             
|PART II   |  |                                                                              |  |  |     | 
|          |  |                                                                             
|Item 13.  |  | Defaults, Dividend Arrearages and Delinquencies                              |  |  | 137 | 
|          |  |                                                                             
|Item 14.  |  | Material Modifications to the Rights of Security Holders and Use of Proceeds |  |  | 137 | 
|          |  |                                                                             
|Item 15.  |  | Controls and Procedures                                                      |  |  | 137 | 
|          |  |                                                                             
|Item 16A. |  | Audit Committee Financial Expert                                             |  |  | 139 | 
|          |  |                                                                             
|Item 16B. |  | Code of Ethics                                                               |  |  | 139 | 
|          |  |                                                                             
|Item 16C. |  | Principal Accountant Fees and Services                                       |  |  | 139 | 
|          |  |                                                                             
|Item 16D. |  | Exemptions from the Listing Standards for Audit
Committees                   |  |  | 140 | 
|          |  |                                                                             
|Item 16E. |  | Purchases of Equity Securities by the Issuer and Affiliated Purchasers       |  |  | 140 | 
|          |  |                                                                             
|Item 16F. |  | Change in Registrants Certifying
Accountant                                 |  |  | 140 | 
|          |  |                                                                             
|Item 16G. |  | Corporate Governance                                                         |  |  | 140 | 
|          |  |                                                                             
|Item 16H. |  | Mine Safety Disclosure                                                       |  |  | 141 | 
|          |  |                                                                             
|PART III  |  |                                                                              |  |  |     | 
|          |  |                                                                             
|Item 17.  |  | Financial Statements                                                         |  |  | 141 | 
|          |  |                                                                             
|Item 18.  |  | Financial Statements                                                         |  |  | 141 | 
|          |  |                                                                             
|Item 19.  |  | Exhibits                                                                     |  |  | 141 | 



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INTRODUCTION

Unless otherwise indicated, DBV, the company, our company, we, us and our refer to DBV
Technologies S.A. and its consolidated subsidiary.

We own various trademark registrations and applications, and unregistered trademarks and servicemarks,
including Diallertest®, Viaskin®, EPIT, DBV Technologies® and our corporate logo. All other trademarks or trade names referred to in this Annual Report on Form 20-F are the property of their respective owners. Trade names, trademarks and service
marks of other companies appearing in this Annual Report on Form 20-F are the property of their respective holders. Solely for convenience, the trademarks and trade names in this Annual Report on Form 20-F may be referred to without the ® and  symbols, but such references should not be construed as any indicator that their respective owners will not assert, to the fullest extent under applicable law, their rights thereto. We
do not intend to use or display other companies trademarks and trade names to imply a relationship with, or endorsement or sponsorship of us by, any other companies.

Our audited consolidated financial statements have been prepared in accordance with International Financial Reporting Standards, or IFRS, as issued by the
International Accounting Standards Board, or IASB. Our consolidated financial statements are presented in euros. All references in this Annual Report on Form 20-F to $, US$, U.S.$, U.S. dollars,
dollars and USD mean U.S. dollars and all references to  and euros mean euros, unless otherwise noted. Throughout this Annual Report on Form 20-F, references to ADSs mean ADSs or ordinary shares
represented by ADSs, as the case may be.



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SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

This Annual Report on Form 20-F contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and
Section 21E of the Securities Exchange Act of 1934, as amended, that are based on our managements beliefs and assumptions and on information currently available to our management. All statements other than present and historical facts and
conditions contained in this Annual Report on Form 20-F, including statements regarding our future results of operations and financial positions, business strategy, plans and our objectives for future operations, are forward-looking statements. When
used in this Annual Report on Form 20-F, the words anticipate, believe, can, could, estimate, expect, intend, is designed to, may,
might, plan, potential, predict, objective, should, or the negative of these and similar expressions identify forward-looking statements. Forward-looking statements include, but
are not limited to, statements about:



| |  |  | the initiation, timing, progress and results of our pre-clinical studies and clinical trials, and our research and development programs;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------



| |  |  | our ability to advance product candidates into, and successfully complete, clinical trials;
| | - |  | -------------------------------------------------------------------------------------------



| |  |  | our ability to advance our Viaskin manufacturing capabilities;
| | - |  | --------------------------------------------------------------



| |  |  | the timing or likelihood of regulatory filings and approvals;
| | - |  | -------------------------------------------------------------



| |  |  | our ability to develop sales and marketing capabilities;
| | - |  | --------------------------------------------------------



| |  |  | the commercialization of our product candidates, if approved;
| | - |  | -------------------------------------------------------------



| |  |  | the pricing and reimbursement of our product candidates, if approved;
| | - |  | ---------------------------------------------------------------------



| |  |  | the implementation of our business model, strategic plans for our business, product candidates and technology;
| | - |  | --------------------------------------------------------------------------------------------------------------



| |  |  | the scope of protection we are able to establish and maintain for intellectual property rights covering our product candidates and technology;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | estimates of our expenses, future revenues, capital requirements and our needs for additional financing;
| | - |  | --------------------------------------------------------------------------------------------------------



| |  |  | the potential benefits of strategic collaboration agreements and our ability to enter into strategic arrangements;
| | - |  | ------------------------------------------------------------------------------------------------------------------



| |  |  | our ability to maintain and establish collaborations or obtain additional grant funding;
| | - |  | ----------------------------------------------------------------------------------------



| |  |  | the rate and degree of market acceptance of our product candidates if approved by regulatory authorities;
| | - |  | ---------------------------------------------------------------------------------------------------------



| |  |  | our financial performance;
| | - |  | --------------------------



| |  |  | developments relating to our competitors and our industry, including competing therapies; and
| | - |  | ---------------------------------------------------------------------------------------------



| |  |  | other risks and uncertainties, including those listed in this section of this Annual Report on Form 20-F titled Item 3.DRisk Factors.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------

You should refer to the section of this Annual Report on Form 20-F titled Item 3.DRisk Factors for a discussion of important factors that
may cause our actual results to differ materially from those expressed or implied by our forward-looking statements. As a result of these factors, we cannot assure you that the forward-looking statements in this Annual Report on Form 20-F will prove
to be accurate. Furthermore, if our forward-looking statements prove to be inaccurate, the inaccuracy may be material. In light of the significant uncertainties in these forward-looking statements, you should not regard these statements as a
representation or warranty by us or any other person that we will achieve our objectives and plans in any specified time frame or at all. We undertake no obligation to publicly update any forward-looking statements, whether as a result of new
information, future events or otherwise, except as required by law.



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You should read this Annual Report on Form 20-F and the documents that we reference in this Annual Report on Form
20-F and have filed as exhibits to this Annual Report on Form 20-F completely and with the understanding that our actual future results may be materially different from what we expect. We qualify all of our forward-looking statements by these
cautionary statements.

This Annual Report on Form 20-F contains market data and industry forecasts that were obtained from industry publications. These
data involve a number of assumptions and limitations, and you are cautioned not to give undue weight to such estimates. We have not independently verified any third-party information. While we believe the market position, market opportunity and
market size information included in this Annual Report on Form 20-F is generally reliable, such information is inherently imprecise.



3



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PART I



|Item 1. | Identity of Directors, Senior Management and Advisers.
|------- | ------------------------------------------------------

Not applicable.



|Item 2. | Offer Statistics and Expected Timetable.
|------- | ----------------------------------------

Not applicable.



|Item 3. | Key Information.
|------- | ----------------



|A. | Selected Financial Data
|-- | -----------------------

Our consolidated audited financial statements have been prepared in accordance
with IFRS, as issued by the IASB. We derived the selected statements of consolidated income data for the years ended December 31, 2013, 2014 and 2015 and selected statements of consolidated financial position data as of December 31, 2013,
2014 and 2015 from our consolidated audited financial statements included elsewhere in this Annual Report on Form 20-F. The selected consolidated statement of income data for the year ended December 31, 2012 and the selected consolidated
financial position data as of December 31, 2012 have been derived from our audited consolidated financial statements and notes thereto which are not included in this Annual Report on Form 20-F. This data should be read together with, and is
qualified in its entirety by reference to, Item 5. Operating and Financial Review and Prospects as well as our financial statements and notes thereto appearing elsewhere in this Annual Report on Form 20-F. Our historical results are not
necessarily indicative of the results to be expected in the future.

Statement of Income (Loss) Data (in thousands, except share and per share data):



|                                    |  |                         |            |   |          |   |            |       |  |   |            |   |  |        |            |   |  |   |            |  
|----------------------------------- |  | ----------------------- | ---------- | - | -------- | - | ---------- | ----- |  | - | ---------- | - |  | ------ | ---------- | - |  | - | ---------- | -
|                                    |  | Year Ended December 31, |           
|                                    |  | 2012 (1)                |            |   | 2013 (1) |   |            | 2014  |  |   | 2015       |  
|                                    |  | Euros                   |            |   | Euros    |   |            | Euros |  |   | Euros      |   |  | US$(2) |           
|Operating income                    |  |                         | 2,777      |   |          |   | 3,826      |       |  |   | 4,762      |   |  |        | 6,166      |   |  |   | 6,696      |  
|Operating expenses:                 |  |                         |            |   |          |   |            |       |  |   |            |   |  |        |            |   |  |   |            |  
|Cost of goods sold                  |  |                         | 83         |   |          |   | 102        |       |  |   | 136        |   |  |        | 128        |   |  |   | 139        |  
|Research and development            |  |                         | 11,499     |   |          |   | 17,366     |       |  |   | 21,143     |   |  |        | 34,234     |   |  |   | 37,175     |  
|Selling, general and administration |  |                         | 4,599      |   |          |   | 6,310      |       |  |   | 8,118      |   |  |        | 17,350     |   |  |   | 18,840     |  
|                                    |  |                         |            |   |          |   |            |       |  |   |            |   |  |        |            |   |  |   |            |  
|Total operating expenses            |  |                         | 16,181     |   |          |   | 23,779     |       |  |   | 29,397     |   |  |        | 51,712     |   |  |   | 56,154     |  
|                                    |  |                         |            |   |          |   |            |       |  |   |            |   |  |        |            |   |  |   |            |  
|Operating profit (loss)             |  |                         | (13,404    | ) |          |   | (19,952    | )     |  |   | (24,636    | ) |  |        | (45,546    | ) |  |   | (49,458    | )
|                                    |  |                         |            |   |          |   |            |       |  |   |            |   |  |        |            |   |  |   |            |  
|Financial profit (loss)             |  |                         | 492        |   |          |   | 646        |       |  |   | 624        |   |  |        | 871        |   |  |   | 946        |  
|Net profit (loss)                   |  |                         | (12,912    | ) |          |   | (19,306    | )     |  |   | (24,012    | ) |  |        | (44,674    | ) |  |   | (48,513    | )
|                                    |  |                         |            |   |          |   |            |       |  |   |            |   |  |        |            |   |  |   |            |  
|Earnings (losses) per share(3)      |  |                         |            |   |          |   |            |       |  |   |            |   |  |        |            |   |  |   |            |  
|Basic                               |  |                        | (1.05      | ) |          |  | (1.42      | )     |  |  | (1.49      | ) |  |       | (2.08      | ) |  | $ | (2.26      | )
|                                    |  |                         |            |   |          |   |            |       |  |   |            |   |  |        |            |   |  |   |            |  
|Diluted                             |  |                        | (1.05      | ) |          |  | (1.42      | )     |  |  | (1.49      | ) |  |       | (2.08      | ) |  | $ | (2.26      | )
|                                    |  |                         |            |   |          |   |            |       |  |   |            |   |  |        |            |   |  |   |            |  
|Number of shares used for computing |  |                         |            |   |          |   |            |       |  |   |            |   |  |        |            |   |  |   |            |  
|Basic                               |  |                         | 12,326,779 |   |          |   | 13,604,687 |       |  |   | 16,086,247 |   |  |        | 21,522,342 |   |  |   | 21,522,342 |  
|                                    |  |                         |            |   |          |   |            |       |  |   |            |   |  |        |            |   |  |   |            |  
|Diluted                             |  |                         | 12,326,779 |   |          |   | 13,604,687 |       |  |   | 16,086,247 |   |  |        | 21,522,342 |   |  |   | 21,522,342 |  
|                                    |  |                         |            |   |          |   |            |       |  |   |            |   |  |        |            |   |  |   |            |  



|(1) | The statement of consolidated income (loss) as of December 31, 2013 and 2012 corresponds solely to DBV Technologies S.A., as the company had no consolidated subsidiary as of this date.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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|(2) | Translated solely for convenience into dollars at the noon buying rate of the Federal Reserve Bank of New York of $1.00 = 1.0859 at December 31, 2015.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------

|(3) | See Note 22 to our financial statements for further details on the calculation of basic and diluted loss per ordinary share.
|--- | ----------------------------------------------------------------------------------------------------------------------------

Statement of Financial Position Data (in thousands, except share and per share data):



|                                           |  |                    |        |  |          |  |        |       |  |  |         |  |  |        |         |  |  |  |         | 
|------------------------------------------ |  | ------------------ | ------ |  | -------- |  | ------ | ----- |  |  | ------- |  |  | ------ | ------- |  |  |  | ------- | 
|                                           |  | As of December 31, |       
|                                           |  | 2012 (1)           |        |  | 2013 (1) |  |        | 2014  |  |  | 2015    | 
|                                           |  | Euros              |        |  | Euros    |  |        | Euros |  |  | Euros   |  |  | US$(2) |        
|Cash and cash equivalents                  |  |                    | 38,348 |  |          |  | 39,403 |       |  |  | 114,583 |  |  |        | 323,381 |  |  |  | 351,159 | 
|Total assets                               |  |                    | 42,975 |  |          |  | 46,236 |       |  |  | 125,416 |  |  |        | 343,280 |  |  |  | 372,768 | 
|Total shareholders equity                 |  |                    | 39,173 |  |          |  | 40,395 |       |  |  | 115,445 |  |  |        | 322,076 |  |  |  | 349,742 | 
|Trade non-current liabilities              |  |                    | 632    |  |          |  | 1,607  |       |  |  | 4,419   |  |  |        | 5,183   |  |  |  | 5,628   | 
|Total current liabilities                  |  |                    | 3,170  |  |          |  | 4,234  |       |  |  | 5,552   |  |  |        | 16,021  |  |  |  | 17,397  | 
|Total liabilities                          |  |                    | 3,802  |  |          |  | 5,841  |       |  |  | 9,971   |  |  |        | 21,204  |  |  |  | 23,025  | 
|Total liabilities and shareholders equity |  |                    | 42,975 |  |          |  | 46,236 |       |  |  | 125,416 |  |  |        | 343,280 |  |  |  | 372,768 | 
|                                           |  |                    |        |  |          |  |        |       |  |  |         |  |  |        |         |  |  |  |         | 



|(1) | The statement of consolidated financial position as of December 31, 2013 and 2012 corresponds solely to DBV Technologies S.A., as the company had no consolidated subsidiary as of such date.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | Translated solely for convenience into dollars at the noon buying rate of the Federal Reserve Bank of New York of $1.00 = 1.0859 at December 31, 2015.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------

Exchange Rate Information

In this Annual Report on Form
20-F, for convenience only, we have translated certain euro amounts reflected in our financial statements as of and for the year ended December 31, 2015 into U.S. dollars at the rate of $1.00 = 1.0859, the noon buying rate of the Federal
Reserve Bank of New York for euros at December 31, 2015. You should not assume that, on that or on any other date, one could have converted these amounts of euros into U.S. dollars at that or any other exchange rate.



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The following table sets forth, for each period indicated, the low and high exchange rates for euros expressed in
U.S. dollars, the exchange rate at the end of such period and the average of such exchange rates on the last day of each month during such period, based on the noon buying rate of the Federal Reserve Bank of New York for euros into dollars. As used
in this Annual Report, the term noon buying rate refers to the rate of exchange for the euro, expressed in U.S. dollars per euro, as certified by the Federal Reserve Bank of New York for customs purposes.



|                        |  |                         |        |  |      |  |        |      |  |  |        |  |  |      |        |  |  |  |        | 
|----------------------- |  | ----------------------- | ------ |  | ---- |  | ------ | ---- |  |  | ------ |  |  | ---- | ------ |  |  |  | ------ | 
|                        |  | Year Ended December 31, |       
|                        |  | 2011                    |        |  | 2012 |  |        | 2013 |  |  | 2014   |  |  | 2015 |       
|High                    |  |                         | 1.4875 |  |      |  | 1.3463 |      |  |  | 1.3816 |  |  |      | 1.3927 |  |  |  | 1.2015 | 
|Low                     |  |                         | 1.2926 |  |      |  | 1.2062 |      |  |  | 1.2774 |  |  |      | 1.2101 |  |  |  | 1.0524 | 
|Rate at end of period   |  |                         | 1.2973 |  |      |  | 1.3186 |      |  |  | 1.3779 |  |  |      | 1.2101 |  |  |  | 1.0859 | 
|Average rate per period |  |                         | 1.3931 |  |      |  | 1.2854 |      |  |  | 1.3275 |  |  |      | 1.3306 |  |  |  | 1.1098 | 

The following table sets forth, for each of the last six months, the low and high exchange rates for euros expressed in U.S.
dollars and the exchange rate at the end of such period, based on the noon buying rate of the Federal Reserve Bank of New York for the euro.



|                      |  |             |        |  |              |  |        |              |  |  |             |  |  |              |        |  |           |  |        |  |  |  |        | 
|--------------------- |  | ----------- | ------ |  | ------------ |  | ------ | ------------ |  |  | ----------- |  |  | ------------ | ------ |  | --------- |  | ------ |  |  |  | ------ | 
|                      |  | October2015 |        |  | November2015 |  |        | December2015 |  |  | January2016 |  |  | February2016 |        |  | March2016 | 
|High                  |  |             | 1.1437 |  |              |  | 1.1026 |              |  |  | 1.1025      |  |  |              | 1.0964 |  |           |  | 1.1362 |  |  |  | 1.1390 | 
|Low                   |  |             | 1.0963 |  |              |  | 1.0562 |              |  |  | 1.0573      |  |  |              | 1.0743 |  |           |  | 1.0868 |  |  |  | 1.0845 | 
|Rate at end of period |  |             | 1.1042 |  |              |  | 1.0562 |              |  |  | 1.0859      |  |  |              | 1.0832 |  |           |  | 1.0868 |  |  |  | 1.1390 | 

On December 31, 2015, the noon buying rate of the Federal Reserve Bank of New York for the euro was $1.00 = 1.0859.
Unless otherwise indicated, currency translations in this Annual Report on Form 20-F reflect the December 31, 2015 exchange rate.

On April 15,
2016, the noon buying rate of the Federal Reserve Bank of New York for the euro was $1.00 = 1.1295.



|B. | Capitalization and Indebtedness
|-- | -------------------------------

Not applicable.



|C. | Reasons for the Offer and Use of Proceeds
|-- | -----------------------------------------

Not applicable.



|D. | Risk Factors
|-- | ------------

Our business faces significant risks. You should carefully consider all of the
information set forth in this Annual Report and in our other filings with the United States Securities and Exchange Commission, or the SEC, including the following risk factors which we face and which are faced by our industry. Our business,
financial condition or results of operations could be materially adversely affected by any of these risks. This report also contains forward-looking statements that involve risks and uncertainties. Our results could materially differ from those
anticipated in these forward-looking statements, as a result of certain factors including the risks described below and elsewhere in this Annual Report and our other SEC filings. See Special Note Regarding Forward-Looking Statements
above.

Risks Related to Our Financial Condition and Capital Requirements

We Have Incurred Significant Losses Since Our Inception And Anticipate That We Will Continue To Incur Significant Losses For The Foreseeable Future.

We are a clinical-stage biopharmaceutical company, and we have not yet generated significant income, with the exception of the French research
tax credit (crédit dimpôt recherche), or CIR, which is classified as other income in our statement of income (loss). We have incurred net losses in each year since our inception in 2002, including



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net losses of 19.3 million, 24.0 million and 44.7 million for the years ended December 31, 2013, 2014 and 2015, respectively. Although we have historically
generated non-meaningful revenues through the sale of our Diallertest Milk product in France, we discontinued our commercial partnership with respect to the product and ceased selling Diallertest Milk during the second half of 2015. We do not expect
to derive any revenues in 2016 from the sale of Diallertest Milk. As of December 31, 2015, we had an accumulated deficit of 99.4 million.

We
have devoted most of our financial resources to research and development, including our clinical and pre-clinical development activities. To date, we have financed our operations primarily through the sale of equity securities, obtaining public
assistance in support of innovation, such as conditional advances from OSEO Innovation, or OSEO, and reimbursements of research tax credit claims. The amount of our future net losses will depend, in part, on the pace and amount of our future
expenditures and our ability to obtain funding through equity or debt financings, strategic collaborations or additional grants or tax credits. While we have initiated a pivotal Phase III trial to evaluate the safety and efficacy of Viaskin Peanut,
we have not yet completed pivotal clinical trials for any of our lead product candidates and it will be several years, if ever, before we have a product candidate ready for commercialization, if at all. Even if we obtain regulatory approval to
market a product candidate, our future revenues will depend upon the size of any markets in which our product candidates have received approval, and our ability to achieve sufficient market acceptance, reimbursement from third-party payors and
adequate market share for our product candidates in those markets.

We expect to continue to incur significant expenses and increasing operating losses
for the foreseeable future. We anticipate that our expenses will increase substantially if and as we:



| |  |  | continue our research, pre-clinical and clinical development of our product candidates;
| | - |  | ---------------------------------------------------------------------------------------



| |  |  | expand the scope of our current clinical trials for our product candidates;
| | - |  | ---------------------------------------------------------------------------



| |  |  | initiate additional pre-clinical, clinical or other studies for our product candidates;
| | - |  | ---------------------------------------------------------------------------------------



| |  |  | further develop the manufacturing process for our product candidates;
| | - |  | ---------------------------------------------------------------------



| |  |  | change or add additional manufacturers or suppliers;
| | - |  | ----------------------------------------------------



| |  |  | seek regulatory and marketing approvals for our product candidates that successfully complete clinical studies;
| | - |  | ---------------------------------------------------------------------------------------------------------------



| |  |  | establish a sales, marketing and distribution infrastructure to commercialize any products for which we may obtain marketing approval, especially in North America;
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | seek to identify and validate additional product candidates;
| | - |  | ------------------------------------------------------------



| |  |  | acquire or in-license other product candidates and technologies;
| | - |  | ----------------------------------------------------------------



| |  |  | make milestone or other payments under any in-license agreements;
| | - |  | -----------------------------------------------------------------



| |  |  | maintain, protect and expand our intellectual property portfolio;
| | - |  | -----------------------------------------------------------------



| |  |  | attract and retain new and existing skilled personnel;
| | - |  | ------------------------------------------------------



| |  |  | create additional infrastructure to support our operations as a public company; and
| | - |  | -----------------------------------------------------------------------------------



| |  |  | experience any delays or encounter issues with any of the above.
| | - |  | ----------------------------------------------------------------

The net losses we incur may fluctuate
significantly from year to year, such that a period-to-period comparison of our results of operations may not be a good indication of our future performance. In any particular period or periods, our operating results could be below the expectations
of securities analysts or investors, which could cause the price of our ADSs or ordinary shares to decline.



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We May Need To Raise Additional Funding, Which May Not Be Available On Acceptable Terms, Or At All. Failure
To Obtain This Necessary Capital When Needed May Force Us To Delay, Limit Or Terminate Our Product Development Efforts Or Other Operations.

We
are currently advancing our product candidates through pre-clinical and clinical development. Developing product candidates is expensive, lengthy and risky, and we expect our research and development expenses to increase substantially in connection
with our ongoing activities, particularly as we advance Viaskin Peanut and Viaskin Milk through clinical development. We initiated the Peanut EPIT Efficacy and Safety Study, or PEPITES, a pivotal Phase III trial, of Viaskin Peanut in December 2015.

As of December 31, 2015, our cash and cash equivalents were 323.4 million. We expect that our existing cash will be sufficient to fund our
current operations until the end of 2017. However, our operating plan may change as a result of many factors currently unknown to us, and we may need to seek additional funds sooner than planned, through public or private equity or debt financings,
government or other third-party funding, marketing and distribution arrangements and other collaborations, strategic alliances and licensing arrangements or a combination of these approaches. In any event, we will require additional capital to
pursue pre-clinical and clinical activities, pursue regulatory approval for, and to commercialize, our product candidates. Raising funds in the current economic environment may present additional challenges. Even if we believe we have sufficient
funds for our current or future operating plans, we may seek additional capital if market conditions are favorable or if we have specific strategic considerations.

Any additional fundraising efforts may divert our management from their day-to-day activities, which may adversely affect our ability to develop and
commercialize our product candidates. In addition, we cannot guarantee that future financing will be available in sufficient amounts or on terms acceptable to us, if at all. Moreover, the terms of any financing may adversely affect the holdings or
the rights of our shareholders and the issuance of additional securities, whether equity or debt, by us, or the possibility of such issuance, may cause the market price of our ADSs or ordinary shares to decline. The sale of additional equity or
convertible securities would dilute all of our shareholders. The incurrence of indebtedness would result in increased fixed payment obligations and we may be required to agree to certain restrictive covenants, such as limitations on our ability to
incur additional debt, limitations on our ability to acquire, sell or license intellectual property rights and other operating restrictions that could adversely impact our ability to conduct our business. We could also be required to seek funds
through arrangements with collaborative partners or otherwise at an earlier stage than otherwise would be desirable and we may be required to relinquish rights to some of our technologies or product candidate or otherwise agree to terms unfavorable
to us, any of which may have a material adverse effect on our business, operating results and prospects.

If we are unable to obtain funding on a timely
basis, we may be required to significantly curtail, delay or discontinue one or more of our research or development programs or the commercialization of any product candidate or be unable to expand our operations or otherwise capitalize on our
business opportunities, as desired, which could materially affect our business, financial condition and results of operations.

We Are Limited In
Our Ability To Raise Additional Share Capital, Which May Make It Difficult For Us To Raise Capital To Fund Our Operations.

Under French law, our
share capital may be increased only with shareholders approval at an extraordinary general shareholders meeting following the recommendation of our board of directors. The shareholders may delegate to our board of directors either the
authority (délégation de compétence) or the power (délégation de pouvoir) to carry out any increase in share capital. As discussed further under Item 10. BMemorandum and Articles of
Association, our board may be precluded from issuing additional ordinary shares without first obtaining shareholders approval.



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In addition, the French Commercial Code imposes certain limitations on our ability to price any offering of our
share capital without preferential subscription right (sans droit préférentiel de souscription), which limitation may prevent us from successfully completing any such offering. Specifically, under the French Commercial Code,
unless the offering is less than 10% of issued share capital, securities cannot be sold in an offering if it is not possible to fix the per share price of the shares at a level at least equal to the volume weighted average trading price on Euronext
Paris over the last three trading days preceding the commencement of the marketing of the transaction, referred to as the book building process, less a maximum discount of 5%.

We Have Identified A Material Weakness In Our Internal Control Over Financial Reporting For The Year Ended December 31, 2015 And May Identify
Additional Material Weaknesses In The Future Or Otherwise Fail To Maintain An Effective System Of Internal Controls, Which May Result In Material Misstatements Of Our Financial Statements Or Could Have A Material Adverse Effect On Our Business And
Trading Price Of Our Securities.

As of the end of our second quarter of fiscal 2015, the market value of our common stock held by non-affiliates
exceeded $700 million and we ceased to be an emerging growth company at the conclusion of fiscal 2015. Pursuant to Section 404 of the Sarbanes-Oxley Act of 2002, or Section 404, we are required to furnish a report by our
management on our internal control over financial reporting, and we are required to include an attestation report on internal control over financial reporting issued by our independent registered public accounting firm.

In connection with the audit of our consolidated financial statements as of and for the year ended December 31, 2015 and our managements assessment
of our internal control over financial reporting, we identified a material weakness in our internal control over financial reporting. A material weakness is a deficiency, or combination of deficiencies, in internal control over financial reporting,
such that there is a reasonable possibility that a material misstatement of our annual or interim financial statements will not be prevented or detected on a timely basis. The material weakness that we identified is related to a lack of adequate
segregation of duties given the size of our finance and accounting team to allow for appropriate monitoring of financial reporting matters and internal control over financial reporting.

This material weakness did not result in any adjustments or restatements of our audited consolidated financial statements or disclosures for any prior period
previously reported by the company. However, there is a reasonable possibility that a material misstatement of the consolidated financial statements would not have been prevented or detected on a timely basis due to the failure in designing and
implementing appropriate controls over the segregation of duties, and therefore, it has been evaluated as a material weakness. However, if the material weakness is not remediated, then it could result in material financial misstatements in the
future.

We have limited accounting and financial reporting personnel and other resources with which to address our internal controls and procedures. We
are currently designing and implementing new procedures and controls intended to remediate the material weakness described above. We have hired additional accounting and finance staff, who have significant external reporting experience and
experience with establishing appropriate financial reporting policies and procedures, and engaged a professional advisor with sufficient technical accounting expertise to assist us in the implementation of internal controls over financial reporting
and segregating duties amongst accounting personnel.

We expect to incur additional costs to remediate this weakness, primarily personnel costs and
external consulting fees. We cannot assure you that the measures we have taken to date, together with any measures we may take in the future, will be sufficient to remediate the control deficiencies that led to the material weakness in our internal
control over financial reporting or to avoid potential future material weaknesses.



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If we are unable to successfully remediate our existing or any future material weakness in our internal control
over financial reporting, or if we identify any additional material weaknesses, the accuracy and timing of our financial reporting may be adversely affected. If we are unable to maintain effective internal controls, we may not have adequate,
accurate or timely financial information, and we may be unable to meet our reporting obligations as a U.S. public company or comply with the requirements of the SEC or Section 404. This could result in a restatement of our financial statements,
the imposition of civil or criminal sanctions, the inability of registered broker dealers to make a market in our ADSs or ordinary shares, or an investigation by regulatory authorities. Any such action or other negative results caused by our
inability to meet our reporting requirements or comply with legal and regulatory requirements or by disclosure of an accounting, reporting or control issue could adversely affect the trading price of our securities and our business. Our reporting
and compliance obligations may place a significant strain on our management, operational and financial resources and systems for the foreseeable future. Failure to remedy any material weakness in our internal control over financial reporting, or to
implement or maintain other effective control systems required of U.S. public companies, could also restrict our future access to the capital markets.

If We Do Not Obtain The Capital Necessary To Fund Our Operations, We Will Be Unable To Successfully Develop, Pursue Regulatory Approval For, And
Commercialize, Our Biopharmaceutical Products.

The development of biopharmaceutical products is capital-intensive. We anticipate we may require
additional financing to continue to fund our operations. Our future capital requirements will depend on, and could increase significantly as a result of, many factors including:



| |  |  | progress in, and the costs of, our pre-clinical studies and clinical trials and other research and development programs;
| | - |  | ------------------------------------------------------------------------------------------------------------------------



| |  |  | depending on the regulatory authorities requests, larger or longer clinical trials;
| | - |  | ------------------------------------------------------------------------------------



| |  |  | the scope, prioritization and number of our research and development programs;
| | - |  | ------------------------------------------------------------------------------



| |  |  | the achievement of milestones or occurrence of other developments that trigger payments under any collaboration agreements we may enter into;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the extent to which we are obligated to reimburse, or entitled to reimbursement of, clinical trial costs under future collaboration agreements, if any;
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the costs involved in filing, prosecuting, enforcing and defending patent claims and other intellectual property rights;
| | - |  | ------------------------------------------------------------------------------------------------------------------------



| |  |  | the costs of securing manufacturing arrangements for commercial production; and
| | - |  | -------------------------------------------------------------------------------



| |  |  | the costs of establishing, or contracting for, sales and marketing capabilities if we obtain regulatory approvals to market our product candidates.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------

Until we can generate significant continuing revenues, we expect to satisfy our future cash needs through collaboration arrangements, sales of our securities,
debt financings, obtaining public assistance in support of innovation, such as conditional advances from OSEO, and reimbursements of research tax credit claims, or by licensing one or more of our future product candidates. Dislocations in the
financial markets have generally made equity and debt financing more difficult to obtain, and may have a material adverse effect on our ability to meet our future fundraising needs. We cannot be certain that additional funding will be available to
us on acceptable terms, if at all. If funds are not available, we may be required to delay, reduce the scope of, or eliminate one or more of our research or development programs or our commercialization efforts. Additional funding, if obtained, may
significantly dilute existing shareholders if that financing is obtained through issuing equity or instruments convertible into equity.



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Our Product Development Programs For Candidates May Require Substantial Financial Resources And May
Ultimately Be Unsuccessful.

In addition to the development of our lead product candidates, we may pursue development of our other early-stage
development programs. In November 2015, we announced the enrollment of the first patient in the Study of efficacy and safety of Viaskin Milk in Milk-Induced Eosinophilic Esophagitis, or SMILEE, a Phase IIa
clinical trial assessing the safety and efficacy of Viaskin Milk for the treatment of milk-induced eosinophilic esophagitis. Our other earlier stage product development programs include a booster vaccine for pertussis, as well as potential
treatments for Crohns disease and respiratory syncytial virus. Our current early-stage development programs are still in the pre-clinical proof-of-concept phase and may not result in product candidates we can advance to the clinical
development phase. None of our other potential product candidates has commenced clinical trials, and there are a number of U.S. Food and Drug Administration, or FDA, and European Medicines Agency, or EMA, regulatory requirements that we must satisfy
before we can commence these clinical trials, if at all. Satisfaction of these requirements will entail substantial time, effort and financial resources. We may never satisfy these requirements. Any time, effort and financial resources we expend on
our other early-stage development programs may adversely affect our ability to continue development and commercialization of product candidates based on our Viaskin technology platform, and we may never commence clinical trials of such development
programs despite expending significant resources in pursuit of their development. Even if we do commence clinical trials of our other potential product candidates, such product candidates may never be approved by the FDA or the EMA.

The Requirements Of Being A U.S. Public Company May Strain Our Resources, Divert Managements Attention And Affect Our Ability To Attract And
Retain Executive Management And Qualified Board Members.

As a U.S. public company, we have incurred and will continue to incur significant legal,
accounting, and other expenses that we did not previously incur. We are subject to the reporting requirements of the Securities Exchange Act of 1934, or the Exchange Act, the Sarbanes-Oxley Act, the Dodd-Frank Wall Street Reform and Consumer
Protection Act, the Nasdaq listing requirements and other applicable securities rules and regulations. Compliance with these rules and regulations will continue to increase our legal and financial compliance costs, make some activities more
difficult, time-consuming or costly and increase demand on our systems and resources, particularly after we no longer qualify as a foreign private issuer. The Exchange Act requires that, as a public company, we file annual, semi-annual and current
reports with respect to our business, financial condition and result of operations. However, as a foreign private issuer, we are not required to file quarterly reports with respect to our business, financial condition and results of operations. We
currently make annual and semi-annual filings with respect to our listing on Euronext Paris. Unless otherwise required by the Exchange Act or the listing rules of the Nasdaq Global Select Market, we do not expect to file quarterly financial reports
and will continue to file financial reports on an annual and semi-annual basis. As a result of being a U.S. public company, managements attention may be diverted from other business concerns, which could adversely affect our business and
results of operations.

As a U.S. public company that is subject to these rules and regulations, we may find it is more expensive for us to obtain
director and officer liability insurance, and we may be required to accept reduced coverage or incur substantially higher costs to obtain coverage. These factors could also make it more difficult for us to attract and retain qualified members of our
board of directors, particularly to serve on our audit committee and compensation committee, and qualified executive officers.

As a result of disclosure
of information in filings required of a U.S. public company, our business and financial condition will become more visible, which we believe may result in threatened or actual litigation, including by



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competitors and other third parties. If such claims are successful, our business and results of operations could be adversely affected, and even if the claims do not result in litigation or are
resolved in our favor, these claims, and the time and resources necessary to resolve them, could divert the resources of our management and adversely affect our business and results of operations.

Further, being a U.S. public company and a French public company has an impact on disclosure of information and compliance with two sets of applicable rules.
This could result in continuing uncertainty regarding compliance matters and higher costs necessitated by ongoing revisions to disclosure and governance practices.

Risks Related to Product Development, Regulatory Approval and Commercialization

We Depend Almost Entirely On The Successful Development Of Our Novel Viaskin Technology. We Cannot Be Certain That We Will Be Able To Obtain Regulatory
Approval For, Or Successfully Commercialize, Viaskin Products.

We currently have two lead Viaskin technology-based product candidates, Viaskin
Peanut and Viaskin Milk, in clinical development, and our business depends almost entirely on their successful clinical development, regulatory approval and commercialization. We currently have no drug or biological product approved for sale and may
never be able to develop a marketable drug or biological product. Viaskin Peanut and Viaskin Milk will require substantial additional clinical development, testing, and regulatory approval before we are permitted to commence their commercialization.
Our other product candidates, such as Viaskin Egg, are still in pre-clinical development. The clinical trials of our product candidates are, and the manufacturing and marketing of our product candidates will be, subject to extensive and rigorous
review and regulation by numerous government authorities in the United States and in other countries where we intend to test and, if approved, market any product candidate. Before obtaining regulatory approvals for the commercial sale of any product
candidate, we must demonstrate through pre-clinical testing and clinical trials that, among other things, the product candidate is safe and effective for use in each target indication. This process can take many years and may include post- marketing
studies and surveillance, which will require the expenditure of substantial resources. Of the large number of drugs in development in the United States, only a small percentage successfully completes the FDA regulatory approval process and is
commercialized. Accordingly, even if we are able to obtain the requisite financing to continue to fund our development and clinical programs, we cannot assure you that Viaskin Peanut, Viaskin Milk or any other of our product candidates will be
successfully developed or commercialized.

We are not permitted to market Viaskin Peanut or Viaskin Milk in the United States until we receive approval of
a Biologic License Application, or a BLA, from the FDA, or in any other countries until we receive the requisite approval from such countries. Obtaining approval of a BLA, or requisite approval in other countries, is a complex, lengthy, expensive
and uncertain process, and the FDA may delay, limit or deny approval of Viaskin Peanut and Viaskin Milk for many reasons, including, among others:



| |  |  | we may not be able to demonstrate that Viaskin Peanut or Viaskin Milk is safe and effective in treating food allergies, to the satisfaction of the FDA;
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the results of our clinical trials or the clinical trials conducted by third party academic institutions and included in our application package may not meet the level of statistical or clinical significance required by
the FDA for marketing approval;
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the FDA may disagree with the number, design, size, conduct or implementation of our clinical trials;
| | - |  | -----------------------------------------------------------------------------------------------------



| |  |  | the FDA may require that we conduct additional clinical trials;
| | - |  | ---------------------------------------------------------------



| |  |  | the FDA may not approve the formulation, labeling or specifications of either Viaskin Peanut or Viaskin Milk;
| | - |  | -------------------------------------------------------------------------------------------------------------



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| |  |  | the clinical research organizations, or CROs, that we retain to conduct our clinical trials may take actions outside of our control that materially adversely impact our clinical trials;
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the FDA may find the data from pre-clinical studies and clinical trials insufficient to demonstrate that either the Viaskin Peanuts or Viaskin Milks clinical and other benefits outweigh its safety risks;
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the FDA may disagree with our analysis or interpretation of data from our pre-clinical studies and clinical trials;
| | - |  | -------------------------------------------------------------------------------------------------------------------



| |  |  | the FDA may not accept data generated at our clinical trial sites;
| | - |  | ------------------------------------------------------------------



| |  |  | if our BLA, if and when submitted, is reviewed by an advisory committee, the FDA may have difficulties scheduling an advisory committee meeting in a timely manner or the advisory committee may recommend against approval
of our application or may recommend that the FDA require, as a condition of approval, additional pre-clinical studies or clinical trials, limitations on approved labeling or distribution and use restrictions;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the FDA may require development of a Risk Evaluation and Mitigation Strategy, or REMS, as a condition of approval or post-approval;
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------



| |  |  | the FDA may restrict the use of our products to a narrow population;
| | - |  | --------------------------------------------------------------------



| |  |  | the FDA or the applicable foreign regulatory agency may not approve the manufacturing processes or facilities of third-party manufacturers with which we contract; or
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the FDA may change its approval policies or adopt new regulations.
| | - |  | ------------------------------------------------------------------

Any of these factors, many of which are
beyond our control, could jeopardize our ability to obtain regulatory approval for and successfully market any of our product candidates based on our Viaskin technology platform. Moreover, because our business is almost entirely dependent upon
Viaskin technology, any such setback in our pursuit of regulatory approval would have a material adverse effect on our business and prospects.

Our
Product Candidates Are Expected To Undergo Clinical Trials That Are Time-Consuming And Expensive, The Outcomes Of Which Are Unpredictable, And For Which There Is A High Risk Of Failure. If Clinical Trials Of Our Product Candidates Fail To
Satisfactorily Demonstrate Safety And Efficacy To The FDA And Other Regulators, We, Or Our Collaborators, May Incur Additional Costs Or Experience Delays In Completing, Or Ultimately Be Unable To Complete, The Development And Commercialization Of
These Product Candidates.

Pre-clinical testing and clinical trials are long, expensive and unpredictable processes that can be subject to
extensive delays. We cannot guarantee that any clinical trials will be conducted as planned or completed on schedule, if at all. It may take several years to complete the pre-clinical testing and clinical development necessary to commercialize a
drug or biologic, and delays or failure can occur at any stage. Interim results of clinical trials do not necessarily predict final results, and success in pre-clinical testing and early clinical trials does not ensure that later clinical trials
will be successful. A number of companies in the pharmaceutical, biopharmaceutical and biotechnology industries have suffered significant setbacks in advanced clinical trials even after promising results in earlier trials, and we cannot be certain
that we will not face similar setbacks. The design of a clinical trial can determine whether its results will support approval of a product, and flaws in the design of a clinical trial may not become apparent until the clinical trial is well
advanced. An unfavorable outcome in one or more trials would be a major setback for our product candidates and for us. Due to our limited financial resources, an unfavorable outcome in one or more trials may require us to delay, reduce the scope of,
or eliminate one or more product development programs, which could have a material adverse effect on our business and financial condition and on the value of our ADSs and ordinary shares.



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In connection with clinical testing and trials, we face a number of risks, including:



| |  |  | a product candidate is ineffective, inferior to existing approved medicines, unacceptably toxic, or has unacceptable side effects;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------



| |  |  | patients may die or suffer other adverse effects for reasons that may or may not be related to the product candidate being tested, especially during the double-blind, placebo-controlled food challenges;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | extension studies on long-term tolerance could invalidate the use of our product, showing Viaskin does not generate a sustained protective effect;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the results may confirm an absence of statistically significant therapeutic effect of Viaskin Peanut in adolescents and/or adults, as observed in the ARACHILD pilot trial and our VIPES trial;
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the results may not confirm the positive results of earlier testing or trials; and
| | - |  | ----------------------------------------------------------------------------------



| |  |  | the results may not meet the level of statistical significance required by the FDA or other regulatory agencies to establish the safety and efficacy of our product candidates.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

The results of pre-clinical studies do not necessarily predict clinical success, and larger and later-stage clinical trials may not produce the same results
as earlier-stage clinical trials. The prior clinical trials of our product candidates based on our Viaskin technology platform showed favorable safety and efficacy data; however, we may have different enrollment criteria in our future clinical
trials. As a result, we may not observe a similarly favorable safety and efficacy profile as our prior clinical trials. In addition, we cannot assure you that in the course of potential widespread use in future, some drawbacks would not appear in
maintaining production quality, protein stability or allergenic strength. Frequently, product candidates developed by pharmaceutical, biopharmaceutical and biotechnology companies have shown promising results in early pre-clinical studies or
clinical trials, but have subsequently suffered significant setbacks or failed in later clinical trials. In addition, clinical trials of potential products often reveal that it is not possible or practical to continue development efforts for these
product candidates.

If we do not successfully complete pre-clinical and clinical development, we will be unable to market and sell our product candidates
and generate revenues. Even if we do successfully complete clinical trials, those results are not necessarily predictive of results of additional trials that may be needed before a BLA may be submitted to the FDA. Although there are a large number
of drugs and biologics in development in the United States and other countries, only a small percentage result in the submission of a BLA to the FDA, even fewer are approved for commercialization, and only a small number achieve widespread physician
and consumer acceptance following regulatory approval. If our clinical trials are substantially delayed or fail to prove the safety and effectiveness of our product candidates in development, we may not receive regulatory approval of any of these
product candidates and our business and financial condition will be materially harmed.

In Our Clinical Trials, We Utilize An Oral Food Challenge
Procedure Intentionally Designed To Trigger An Allergic Reaction, Which Could Be Severe Or Life-Threatening.

In accordance with our food allergy
clinical trial protocols, we utilize a double-blind, placebo-controlled food challenge procedure. This consists of giving the offending food protein to patients in order to assess the sensitivity of their food allergy, and thus the safety and
efficacy of our product candidates versus placebo. The food challenge protocol is meant to induce objective symptoms of an allergic reaction. These oral food challenge procedures can potentially trigger anaphylaxis or potentially life-threatening
systemic allergic reactions. Even though these procedures are well-controlled, standardized and performed in highly specialized centers with intensive care units, there are inherent risks in conducting a trial of this nature. An uncontrolled
allergic reaction could potentially lead to serious or even fatal reactions. Any such serious clinical event could potentially adversely affect our clinical development timelines, including a complete clinical hold on our food allergy clinical
trials. We may also become liable to subjects who participate in our clinical trials and experience any such serious or fatal reactions. Any of the foregoing could have a material adverse effect on our business, prospects, stock price or financial
condition.



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Delays, Suspensions And Terminations In Our Clinical Trials Could Result In Increased Costs To Us And Delay
Or Prevent Our Ability To Generate Revenues.

Human clinical trials are very expensive, time-consuming, and difficult to design, implement and
complete. The completion of trials for Viaskin Peanut, Viaskin Milk or our other product candidates may be delayed for a variety of reasons, including delays in:



| |  |  | demonstrating sufficient safety and efficacy to obtain regulatory approval to commence a clinical trial;
| | - |  | --------------------------------------------------------------------------------------------------------



| |  |  | reaching agreement on acceptable terms with prospective CROs, and clinical trial sites;
| | - |  | ---------------------------------------------------------------------------------------



| |  |  | validating test methods to support quality testing of the drug substance and drug product;
| | - |  | ------------------------------------------------------------------------------------------



| |  |  | obtaining sufficient quantities of the drug substance or other materials necessary to conduct clinical trials;
| | - |  | --------------------------------------------------------------------------------------------------------------



| |  |  | manufacturing sufficient quantities of a product candidate;
| | - |  | -----------------------------------------------------------



| |  |  | obtaining approval of an investigational new drug, or IND, application from the FDA;
| | - |  | ------------------------------------------------------------------------------------



| |  |  | obtaining institutional review board, or IRB, approval to conduct a clinical trial at a prospective clinical trial site;
| | - |  | ------------------------------------------------------------------------------------------------------------------------



| |  |  | determining dosing and clinical design and making related adjustments; and
| | - |  | --------------------------------------------------------------------------



| |  |  | patient enrollment, which is a function of many factors, including the size of the patient population, the nature of the protocol, the proximity of patients to clinical trial sites, the availability of effective
treatments for the relevant disease and the eligibility criteria for the clinical trial.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

The commencement and completion of clinical trials
for our product candidates may be delayed, suspended or terminated due to a number of factors, including:



| |  |  | lack of effectiveness of product candidates during clinical trials;
| | - |  | -------------------------------------------------------------------



| |  |  | adverse events, safety issues or side effects relating to the product candidates or their formulation;
| | - |  | ------------------------------------------------------------------------------------------------------



| |  |  | serious adverse events relating to the double-blind, placebo-controlled food challenge procedure when testing patients for the sensitivity of their allergies;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | inability to raise additional capital in sufficient amounts to continue clinical trials or development programs, which are very expensive;
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the need to sequence clinical trials as opposed to conducting them concomitantly in order to conserve resources;
| | - |  | ----------------------------------------------------------------------------------------------------------------



| |  |  | our inability to enter into collaborations relating to the development and commercialization of our product candidates;
| | - |  | -----------------------------------------------------------------------------------------------------------------------



| |  |  | failure by us or our collaborators to conduct clinical trials in accordance with regulatory requirements;
| | - |  | ---------------------------------------------------------------------------------------------------------



| |  |  | our inability or the inability of our collaborators to manufacture or obtain from third parties materials sufficient for use in pre-clinical studies and clinical trials;
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | governmental or regulatory delays and changes in regulatory requirements, policy and guidelines, including mandated changes in the scope or design of clinical trials or requests for supplemental information with respect
to clinical trial results;
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | failure of our collaborators to advance our product candidates through clinical development;
| | - |  | --------------------------------------------------------------------------------------------



| |  |  | delays in patient enrollment, variability in the number and types of patients available for clinical trials, and lower-than anticipated retention rates for patients in clinical trials;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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| |  |  | difficulty in patient monitoring and data collection due to failure of patients to maintain contact after treatment;
| | - |  | --------------------------------------------------------------------------------------------------------------------



| |  |  | a regional disturbance where we or our collaborative partners are enrolling patients in our clinical trials, such as a pandemic, terrorist activities or war, or a natural disaster; and
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | varying interpretations of our data, and regulatory commitments and requirements by the FDA and similar foreign regulatory agencies.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------

Many of these factors may also ultimately lead to denial of our BLA for our product candidate. If we experience delay, suspensions or terminations in a
clinical trial, the commercial prospects for the related product candidate will be harmed, and our ability to generate product revenues will be delayed or such revenues could be reduced or fail to materialize.

In addition, we may encounter delays or product candidate rejections based on new governmental regulations, future legislative or administrative actions, or
changes in FDA or other similar foreign regulatory agency policy or interpretation during the period of product development. If we obtain required regulatory approvals, such approvals may later be withdrawn. Delays or failures in obtaining
regulatory approvals may result in:



| |  |  | varying interpretations of data and commitments by the FDA and similar foreign regulatory agencies; and
| | - |  | -------------------------------------------------------------------------------------------------------



| |  |  | diminishment of any competitive advantages that such product candidates may have or attain.
| | - |  | -------------------------------------------------------------------------------------------

Furthermore, if
we fail to comply with applicable FDA and other regulatory requirements at any stage during this regulatory process, we may encounter or be subject to:



| |  |  | diminishment of any competitive advantages that such product candidates may have or attain;
| | - |  | -------------------------------------------------------------------------------------------



| |  |  | delays or termination in clinical trials or commercialization;
| | - |  | --------------------------------------------------------------



| |  |  | refusal by the FDA or similar foreign regulatory agencies to review pending applications or supplements to approved applications;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------



| |  |  | product recalls or seizures;
| | - |  | ----------------------------



| |  |  | suspension of manufacturing;
| | - |  | ----------------------------



| |  |  | withdrawals of previously approved marketing applications; and
| | - |  | --------------------------------------------------------------



| |  |  | fines, civil penalties, and criminal prosecutions.
| | - |  | --------------------------------------------------

If Our Product Candidates Are Not Approved By The
FDA, We Will Be Unable To Commercialize Them In The United States.

The FDA must approve any new drug or biologic before it can be commercialized,
marketed, promoted or sold in the United States. We must provide the FDA with data from pre-clinical studies and clinical trials that demonstrate that, among other things, our product candidates are safe and effective for a defined indication before
they can be approved for commercial distribution. Clinical testing is expensive, difficult to design and implement, can take many years to complete and is inherently uncertain as to outcome. We must provide data to ensure the identity, strength,
quality and purity of the drug substance and drug product. Also, we must assure the FDA that the characteristics and performance of the clinical batches will be replicated consistently in the commercial batches. We will not obtain approval for a
product candidate unless and until the FDA approves a BLA, if at all. The processes by which regulatory approvals are obtained from the FDA to market and sell a new or repositioned product are complex, require a number of years and involve the
expenditure of substantial resources. We cannot assure you that any of our product candidates will receive FDA approval in the future, and the time for receipt of any such approval is currently incapable of estimation.



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A Fast Track Designation By The FDA May Not Actually Lead To A Faster Development Or Regulatory Review Or
Approval Process, And It Does Not Increase The Likelihood That Our Product Candidates Will Receive Marketing Approval.

We have obtained fast
track designation from the FDA for Viaskin Peanut, and we may pursue that designation for other product candidates as well. If a product is intended for the treatment of a serious or life-threatening condition and nonclinical or clinical data
demonstrate the potential to address unmet medical needs for this condition, the sponsor may apply for FDA fast track designation. The FDA has broad discretion whether or not to grant this designation, and even if we believe our product candidates
are eligible for this designation, we cannot be sure that the FDA would decide to grant it. Even if we do have fast track designation, we may not experience a faster development process, review or approval compared to conventional FDA procedures.
The FDA may withdraw fast track designation if it believes that the designation is no longer supported by data from our clinical development program.

A Breakthrough Therapy Designation By The FDA For Our Product Candidates May Not Lead To A Faster Development Or Regulatory Review Or Approval Process,
And It Does Not Increase The Likelihood That Our Product Candidates Will Receive Marketing Approval.

We have obtained breakthrough therapy
designation for Viaskin Peanut in children, 6 to 11 years of age, and we may pursue that designation for other product candidates as well. A breakthrough therapy is defined as a product that is intended, alone or in combination with one or more
other drugs, to treat a serious or life- threatening condition, and preliminary clinical evidence indicates that the product may demonstrate substantial improvement over existing therapies on one or more clinically significant endpoints. For product
candidates that have been designated as breakthrough therapies, interaction and communication between the FDA and the sponsor of the trial can help identify the most efficient path for clinical development while minimizing the number of patients
placed in ineffective control regimens. Such designation also offers an intensive and efficient review involving FDA senior managers and experienced review and regulatory health project management staff across disciplines. A breakthrough therapy
designation affords the possibility of rolling review, enabling the agency to review portions of the marketing application before submission of a complete application, and priority review if supported by clinical data at the time of our BLA
submission.

Designation as a breakthrough therapy is within the discretion of the FDA. Accordingly, even if we believe that our product candidates, in
addition to Viaskin Peanut, meet the criteria for designation as a breakthrough therapy, the FDA may disagree and instead determine not to make such designation. In any event, the receipt of a breakthrough therapy designation for a product candidate
may not result in a faster development process, review or approval compared to products considered for approval under conventional FDA procedures and does not assure ultimate approval by the FDA. In addition, even if one or more of our product
candidates qualify as breakthrough therapies, the FDA may later decide that the products no longer meet the conditions for qualification.

The
Approval Process Outside The United States Varies Among Countries And May Limit Our Ability To Develop, Manufacture And Sell Our Products Internationally. Failure To Obtain Marketing Approval In International Jurisdictions Would Prevent Our Product
Candidates From Being Marketed Abroad.

In order to market and sell our product candidates in the European Union and many other jurisdictions, we,
and our collaborators, must obtain separate marketing approvals and comply with numerous and varying regulatory requirements. The approval procedure varies among countries and may involve additional testing. We may conduct clinical trials for, and
seek regulatory approval to market, our product candidates in countries other than the United States. Depending on the results of clinical trials and the process for obtaining regulatory approvals in other countries, we may decide to first seek
regulatory approvals of a product candidate in countries other than the United States,



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or we may simultaneously seek regulatory approvals in the United States and other countries. If we or our collaborators seek marketing approvals for a product candidate outside the United States,
we will be subject to the regulatory requirements of health authorities in each country in which we seek approvals. With respect to marketing authorizations in Europe, we will be required to submit a European marketing authorization application, or
MAA, to the EMA which conducts a validation and scientific approval process in evaluating a product for safety and efficacy. The approval procedure varies among regions and countries and may involve additional testing, and the time required to
obtain approvals may differ from that required to obtain FDA approval.

Pursuing regulatory approvals from health authorities in countries outside the
United States is likely to subject us to all of the risks associated with pursuing FDA approval described above. In addition, marketing approval by the FDA does not ensure approval by the health authorities of any other country, and approval by
foreign health authorities does not ensure marketing approval by the FDA.

Even If We, Or Our Collaborators, Obtain Marketing Approvals For Our
Product Candidates, The Terms Of Approvals And Ongoing Regulation Of Our Products May Limit How We Or They Market Our Products, Which Could Materially Impair Our Ability To Generate Revenue.

Even if we receive regulatory approval for a product candidate, this approval may carry conditions that limit the market for the product or put the product at
a competitive disadvantage relative to alternative therapies. For instance, a regulatory approval may limit the indicated uses for which we can market a product or the patient population that may utilize the product, or may be required to carry a
warning in its labeling and on its packaging. Products with boxed warnings are subject to more restrictive advertising regulations than products without such warnings. These restrictions could make it more difficult to market any product candidate
effectively. Accordingly, assuming we, or our collaborators, receive marketing approval for one or more of our product candidates, we, and our collaborators will continue to expend time, money and effort in all areas of regulatory compliance.

Any Of Our Product Candidates For Which We, Or Our Collaborators, Obtain Marketing Approval In The Future Could Be Subject To Post-marketing
Restrictions Or Withdrawal From The Market And We, And Our Collaborators, May Be Subject To Substantial Penalties If We, Or They, Fail To Comply With Regulatory Requirements Or If We, Or They, Experience Unanticipated Problems With Our Products
Following Approval.

Any of our product candidates for which we, or our collaborators, obtain marketing approval in the future, as well as the
manufacturing processes, post-approval studies and measures, labeling, advertising and promotional activities for such products, among other things, will be subject to continual requirements of and review by the FDA and other regulatory authorities.
These requirements include submissions of safety and other post-marketing information and reports, registration and listing requirements, requirements relating to manufacturing, quality control, quality assurance and corresponding maintenance of
records and documents, requirements regarding the distribution of samples to physicians and recordkeeping. Even if marketing approval of a product candidate is granted, the approval may be subject to limitations on the indicated uses for which the
product may be marketed or to the conditions of approval, including the FDA requirement to implement a REMS to ensure that the benefits of a drug or biological product outweigh its risks.

The FDA may also impose requirements for costly post-marketing studies or clinical trials and surveillance to monitor the safety or efficacy of a product,
such as long term observational studies on natural exposure. The FDA and other agencies, including the Department of Justice, closely regulate and monitor the post-approval marketing and promotion of products to ensure that they are manufactured,
marketed and distributed only for the approved indications and in accordance with the provisions of the approved labeling. The FDA imposes stringent restrictions on manufacturers communications regarding off-label use and if we, or our
collaborators, market any of our product candidates for which we, or they, receive marketing approval for treatment other than their approved



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indications, we, or they, may be subject to warnings or enforcement action for off-label marketing. Violation of the FDCA and other statutes, including the False Claims Act, relating to the
promotion and advertising of prescription drugs may lead to investigations or allegations of violations of federal and state health care fraud and abuse laws and state consumer protection laws.

If We Do Not Achieve Our Projected Development And Commercialization Goals In The Timeframes We Announce And Expect, The Commercialization Of Our
Product Candidates May Be Delayed, And Our Business Will Be Harmed.

We sometimes estimate the timing of the accomplishment of various scientific,
clinical, regulatory and other product development objectives for planning purposes. These milestones may include our expectations regarding the commencement or completion of scientific studies, clinical trials, the submission of regulatory filings,
or commercialization objectives. From time to time, we may publicly announce the expected timing of some of these milestones, such as the completion of an ongoing clinical trial, the initiation of other clinical programs, receipt of marketing
approval, or a commercial launch of a product. The achievement of many of these milestones may be outside of our control. All of these milestones are based on a variety of assumptions which may cause the timing of achievement of the milestones to
vary considerably from our estimates, including:



| |  |  | our available capital resources or capital constraints we experience;
| | - |  | ---------------------------------------------------------------------



| |  |  | the rate of progress, costs and results of our clinical trials and research and development activities, including the extent of scheduling conflicts with participating clinicians and collaborators, and our ability to
identify and enroll patients who meet clinical trial eligibility criteria;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | our receipt of approvals, if any, by the FDA and other regulatory agencies and the timing thereof;
| | - |  | --------------------------------------------------------------------------------------------------



| |  |  | other actions, decisions or rules issued by regulators;
| | - |  | -------------------------------------------------------



| |  |  | our ability to access sufficient, reliable and affordable supplies of compounds used in the manufacture of our product candidates;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------



| |  |  | the efforts of our collaborators with respect to the commercialization of our products; and
| | - |  | -------------------------------------------------------------------------------------------



| |  |  | the securing of, costs related to, and timing issues associated with, product manufacturing as well as sales and marketing activities.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------

If we fail to achieve announced milestones in the timeframes we expect, the commercialization of our product candidates may be delayed, our business and
results of operations may be harmed, the trading price of the ADSs or ordinary shares may decline.

Access To Raw Materials And Products Necessary
For The Conduct Of Clinical Trials And Manufacturing Of Our Product Candidates Is Not Guaranteed.

We are dependent on third parties for the
supply of various materials, chemical or biological products that are necessary to produce patches for our clinical trials or diagnosis patches. The supply of these materials could be reduced or interrupted at any time. In such case, we may not be
able to find other suppliers of acceptable materials in appropriate quantities at an acceptable cost. If key suppliers or manufacturers are lost or the supply of materials is diminished or discontinued, we may not be able to continue to develop,
manufacture and market our product candidates or products in a timely and competitive manner. In addition, these materials are subject to stringent manufacturing processes and rigorous testing. Delays in the completion and validation of facilities
and manufacturing processes of these materials could adversely affect our ability to complete trials and commercialize our products in a cost-effective and timely manner. To prevent such situations, we intend to diversify our supply



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sources by identifying at a minimum a second source of supply for critical raw materials and materials, such as natural protein and polymer film with a titanium coating. If we encounter
difficulties in the supply of these materials, chemicals or biological products, if we were not able to maintain our supply agreements or establish new agreements to develop and manufacture our products in the future, our business, prospects,
financial condition, results and development could be significantly affected.

Relying On Third-Party Manufacturers May Result In Delays In Our
Clinical Trials And Product Introductions. We Or The Third Parties Upon Whom We Depend May Be Adversely Affected By Earthquakes Or Other Natural Disasters And Our Business Continuity And Disaster Recovery Plans May Not Adequately Protect Us From A
Serious Disaster.

Developing and commercializing new medicines entails significant risks and expenses. Our clinical trials may be delayed if
third-party manufacturers are unable to assure a sufficient quantity of the drug product to meet our study needs. Currently, we have only one manufacturer, Sanofi S.A., or Sanofi, of the active pharmaceutical ingredients used in our Viaskin product
candidates, such peanut protein extract. If Sanofi cannot manufacture the active pharmaceutical ingredients as required by us in a timely manner, we may not be able to find a substitute manufacturer on a timely basis and our clinic trials may be
delayed. If our clinical trials are delayed, our commercialization efforts may be impeded, or our costs may increase. Further, we are aware that Sanofi has entered into licensing agreements of discovery platforms in selected food allergies, notably
with Immune Design Corp. and Selecta Biosciences Inc. This potential competitive dynamic may make Sanofi less inclined to continue or renew their manufacturing arrangement with us on commercially reasonable terms or at all and, notwithstanding
contractual protections, Sanofi may be able to utilize knowledge gained through their relationship with us in furtherance of their development of competitive therapies.

Once regulatory approval is obtained, a marketed product and its manufacturer are subject to continual review. The discovery of previously unknown problems
with a product or manufacturer may result in restrictions on the product, manufacturer or manufacturing facility, including withdrawal of the product from the market. Any manufacturers with which we contract are required to operate in accordance
with FDA-mandated current good manufacturing practices, or cGMPs. A failure of any of our contract manufacturers to establish and follow cGMPs and to document their adherence to such practices may lead to significant delays in the launch of products
based on our product candidates into the market. Moreover, the constituent parts of a combination product retain their regulatory status (as a biologic or device, for example) and, as such, we or our contract manufacturers may be subject to
additional requirements in the Quality System Regulation, or QSR, applicable to medical devices, such as design controls, purchasing controls, and corrective and preventive action. Failure by third-party manufacturers to comply with applicable
regulations could result in sanctions being imposed on us, including fines, injunctions, civil penalties, revocation or suspension of marketing approval for any products granted pre-market approvals, seizures or recalls of products, operating
restrictions, and criminal prosecutions.

Earthquakes or other natural disasters could severely disrupt our operations, and have a material adverse effect
on our business, results of operations, financial condition and prospects. If a natural disaster, power outage or other event occurred that prevented us from using all or a significant portion of our headquarters, that damaged critical
infrastructure, such as the manufacturing facilities of our third-party contract manufacturers, or that otherwise disrupted operations, it may be difficult or, in certain cases, impossible for us to continue our business for a substantial period of
time. The disaster recovery and business continuity plans we have in place may prove inadequate in the event of a serious disaster or similar event. We may incur substantial expenses as a result of the limited nature of our disaster recovery and
business continuity plans, which, particularly when taken together with our lack of earthquake insurance, could have a material adverse effect on our business.



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We Rely, And Will Rely In The Future, On Third Parties To Conduct Our Clinical Trials And Perform Data
Collection And Analysis, Which May Result In Costs And Delays That Prevent Us From Successfully Commercializing Product Candidates.

We rely, and
will rely in the future, on medical institutions, clinical investigators, CROs, contract laboratories, and collaborators to perform data collection and analysis and others to carry out our clinical trials. Our development activities or clinical
trials conducted in reliance on third parties may be delayed, suspended, or terminated if:



| |  |  | the third parties do not successfully carry out their contractual duties or fail to meet regulatory obligations or expected deadlines;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------



| |  |  | we replace a third party; or
| | - |  | ----------------------------



| |  |  | the quality or accuracy of the data obtained by third parties is compromised due to their failure to adhere to clinical protocols, regulatory requirements, or for other reasons.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Third party performance failures may increase our development costs, delay our ability to obtain regulatory approval, and delay or prevent the
commercialization of our product candidates. While we believe that there are numerous alternative sources to provide these services, in the event that we seek such alternative sources, we may not be able to enter into replacement arrangements
without incurring delays or additional costs.

Even If Collaborators With Which We Contract In The Future Successfully Complete Clinical Trials Of
Our Product Candidates, Those Candidates May Not Be Commercialized Successfully For Other Reasons.

Even if we contract with collaborators that
successfully complete clinical trials for one or more of our product candidates, those candidates may not be commercialized for other reasons, including:



| |  |  | failing to receive regulatory approval to market them as drugs;
| | - |  | ---------------------------------------------------------------



| |  |  | being subject to proprietary rights held by others;
| | - |  | ---------------------------------------------------



| |  |  | failing to obtain approval from regulatory authorities on the manufacturing of our products;
| | - |  | --------------------------------------------------------------------------------------------



| |  |  | being difficult or expensive to manufacture on a commercial scale;
| | - |  | ------------------------------------------------------------------



| |  |  | having adverse side effects that make their use less desirable;
| | - |  | ---------------------------------------------------------------



| |  |  | failing to compete effectively with products or treatments commercialized by competitors; or
| | - |  | --------------------------------------------------------------------------------------------



| |  |  | failing to show long-term risk/benefit ratio of our products.
| | - |  | -------------------------------------------------------------

Our Viaskin Product Candidates May Not Be
Able To Be Manufactured Profitably On A Large Enough Scale To Support Commercialization.

To date, our Viaskin product candidates have only been
manufactured at a scale which is adequate to supply our research activities and clinical trials. There can be no assurance that the procedures currently used to manufacture our product candidates will work at a scale which is adequate for commercial
needs and we may encounter difficulties in the production of Viaskin patches due to our or our partners manufacturing capabilities. We have not built commercial-scale manufacturing facilities, and we have limited manufacturing experience with
Viaskin patches. We are working to develop a commercial-scale version of our electrospray manufacturing tool, but cannot predict or control issues that may arise with its development. These difficulties could delay the commercialization of our
product candidates, reduce sales of our products, if approved, or increase our costs, any of which could harm our business.

We rely on a single supplier
to produce, or contract for the production of, active ingredients for our clinical trials and for our commercial supplies of any future approved products. Even if we were to obtain access to quantities of



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active ingredients sufficient to allow us otherwise to expand our Viaskin manufacturing capabilities, we may not be able to produce sufficient quantities of the product at an acceptable cost, or
at all. In the event our Viaskin product candidates cannot be manufactured in sufficient quantities for commercialization, our future prospects could be significantly impacted and our financial prospects would be materially harmed.

We May Enter Into Agreements With Third Parties To Sell And Market Any Products We Develop And For Which We Obtain Regulatory Approvals, Which May
Affect The Sales Of Our Products And Our Ability To Generate Revenues.

Given our development stage, we have limited experience in sales,
marketing and distribution of biopharmaceutical products. However, if our product candidates obtain marketing approval, we intend to develop sales and marketing capacity, either alone or with strategic partners by contracting with, or licensing,
them to market any of our products. Outsourcing sales and marketing in this manner may subject us to a variety of risks, including:



| |  |  | our inability to exercise control over sales and marketing activities and personnel;
| | - |  | ------------------------------------------------------------------------------------



| |  |  | failure or inability of contracted sales personnel to obtain access to or persuade adequate numbers of physicians to prescribe our products;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | disputes with third parties concerning sales and marketing expenses, calculation of royalties, and sales and marketing strategies; and
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------



| |  |  | unforeseen costs and expenses associated with sales and marketing.
| | - |  | ------------------------------------------------------------------

If we are unable to partner with a third
party that has adequate sales, marketing, and distribution capabilities, we may have difficulty commercializing our product candidates, which would adversely affect our business, financial condition, and ability to generate product revenues.

Our Product Candidates Are Regulated As Biological Products, Or Biologics, Which May Subject Them To Competition Sooner Than Anticipated.

The Biologics Price Competition and Innovation Act of 2009, or BPCIA, was enacted as part of the 2010 enactments of the Patient Protection and Affordable Care
Act, as amended by the Health Care and Education Reconciliation Act of 2010, or collectively, the ACA, to establish an abbreviated licensure pathway for biological products shown to be biosimilar to, or interchangeable with, an FDA-licensed
biological reference product. Biosimilarity means that the biological product is highly similar to the reference product notwithstanding minor differences in clinically inactive components and there are no clinically meaningful
differences between the biological product and the reference product in terms of safety, purity, and potency of the product. To meet the higher standard of interchangeability, an applicant must provide sufficient information to show
biosimilarity and demonstrate that the biological product can be expected to produce the same clinical result as the reference product in any given patient and, if the biological product is administrated more than once to an individual, the risk in
terms of safety or diminished efficacy of alternating or switching between the use of the biological product and the reference product is not greater than the risk of using the reference product without such alternation or switch.

Under the BPCIA, an application for a biosimilar or interchangeable product cannot be approved by the FDA until 12 years after the reference product was first
licensed, and the FDA will not even accept an application for review until four years after the date of first licensure. The law is evolving, complex and is still being interpreted and implemented by the FDA. As a result, its ultimate impact,
implementation, and meaning are subject to uncertainty. While it is uncertain when such processes intended to implement BPCIA may be fully adopted by the FDA, any such processes could have a material adverse effect on the future commercial prospects
for our biological products.



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We believe that any of our product candidates approved as a biological product under a BLA should qualify for the
12-year period of exclusivity. However, there is a risk that this exclusivity could be shortened due to congressional action or otherwise, potentially creating the opportunity for biosimilar or interchangeable competition sooner than anticipated.
Moreover, the process by which an interchangeable product, once approved, will be substituted for any one of our reference products in a way that is similar to traditional generic substitution for non-biological products (i.e., drugs) is not
yet clear, and will depend on a number of marketplace and regulatory factors that are still developing and subject to interpretation.

Even If Any
Of Our Product Candidates Are Commercialized, They May Not Be Accepted By Physicians, Patients, Or The Medical Community In General. Even If We, Or Our Collaborators, Are Able To Commercialize Our Product Candidates, The Products May Become Subject
To Market Conditions That Could Harm Our Business.

Even if the medical community accepts a product as safe and efficacious for its indicated use,
physicians may choose to restrict the use of the product if we or any collaborator is unable to demonstrate that, based on experience, clinical data, side-effect profiles and other factors, our product is preferable to any existing drugs or
treatments. We cannot predict the degree of market acceptance of any product candidate that receives marketing approval, which will depend on a number of factors, including, but not limited to:



| |  |  | the demonstration of the clinical efficacy and safety of the product;
| | - |  | ---------------------------------------------------------------------



| |  |  | the approved labeling for the product and any required warnings;
| | - |  | ----------------------------------------------------------------



| |  |  | the advantages and disadvantages of the product compared to alternative treatments;
| | - |  | -----------------------------------------------------------------------------------



| |  |  | our and any collaborators ability to educate the medical community about the safety and effectiveness of the product;
| | - |  | ----------------------------------------------------------------------------------------------------------------------



| |  |  | the coverage and reimbursement policies of government and commercial third-party payors pertaining to the product; and
| | - |  | ----------------------------------------------------------------------------------------------------------------------



| |  |  | the market price of our product relative to competing treatments.
| | - |  | -----------------------------------------------------------------

We Face Substantial Competition From
Companies With Considerably More Resources And Experience Than We Have, Which May Result In Others Discovering, Developing, Receiving Approval For, Or Commercializing Products Before Or More Successfully Than Us.

The biopharmaceuticals industry is highly competitive. Numerous biopharmaceutical laboratories, biotechnology companies, institutions, universities and other
research entities are actively involved in the discovery, research, development and marketing of therapeutic responses to treat allergies making it a highly competitive field. We have competitors in a number of jurisdictions, many of which have
substantially greater name recognition, commercial infrastructures and financial, technical and personnel resources than we have. Although we believe we are currently in a unique position with respect to the testing and treatment of food allergies
in young children, established competitors may invest heavily to quickly discover and develop novel compounds that could make the Viaskin patch products obsolete or uneconomical. Any new product that competes with an approved product may need to
demonstrate compelling advantages in efficacy, convenience, tolerability and safety to be commercially successful. Other competitive factors, including generic competition, could force us to lower prices or could result in reduced sales. In
addition, new products developed by others could emerge as competitors to Viaskin patch products. If we are not able to compete effectively against our current and future competitors, our business will not grow and our financial condition and
operations will suffer.



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In the case of food allergies, we are aware of several academic studies that are currently being conducted in
major centers and hospitals worldwide. These studies are evaluating sublingual, subcutaneous, intranasal or other forms of desensitization or products using synthetic allergens, denatured allergens or combinations of medicines or methods, or
medicines using traditional methods such as Chinese herbs. We are not aware of any pharmaceutical development in conjunction with these academic efforts at this time.

We expect studies combining other methods of immunotherapy, such as oral immunotherapy, or OIT, with anti-IgE treatments will be conducted. These types of
co-administrations may significantly improve the safety of specific immunotherapies administered orally or subcutaneously, and may become significant competitors with our products.

To our knowledge, other pharmaceutical and biotechnology companies are also seeking to develop food allergy treatments, although many are in the discovery or
pre-clinical stages. For example, Aimmune Therapeutics, Inc., formerly known as Allergen Research Corporation, is currently enrolling patients in a Phase III trial to evaluate the safety and efficacy of its OIT product candidate, AR101, in peanut
allergic patients. To our knowledge, the company uses a formulation of peanut flour for oral administration intended for oral desensitization to peanut. We are also aware of other companies that are working on recombinant peanut proteins capable of
initiating an attenuated immune response of using subcutaneous administration. We are also aware that Sanofi has entered into licensing agreements of discovery platforms in selected food allergies, notably with Immune Design Corp. and Selecta
Biosciences Inc. and may pose a competitive risk to our products in the future.

Government Restrictions On Pricing And Reimbursement, As Well As
Other Healthcare Payor Cost-containment Initiatives, May Negatively Impact Our Ability To Generate Revenues If We Obtain Regulatory Approval To Market A Product.

The continuing efforts of the government, insurance companies, managed care organizations and other payors of healthcare costs to contain or reduce costs of
healthcare may adversely affect one or more of the following:



| |  |  | our ability or our collaborators ability to set a price we believe is fair for our products, if approved;
| | - |  | ----------------------------------------------------------------------------------------------------------



| |  |  | our ability or our collaborators ability to obtain and maintain market acceptance by the medical community and patients;
| | - |  | -------------------------------------------------------------------------------------------------------------------------



| |  |  | our ability to generate revenues and achieve profitability; and
| | - |  | ---------------------------------------------------------------



| |  |  | the availability of capital.
| | - |  | ----------------------------

Sales of our products, when and if approved for marketing, will depend, in part,
on the extent to which our products will be covered by third-party payors, such as federal, state, and foreign government health care programs, commercial insurance and managed healthcare organizations. There may be significant delays in obtaining
coverage and reimbursement for newly approved products, and coverage may be more limited than the purposes for which the drug is approved by the FDA or comparable foreign regulatory authorities. Moreover, eligibility for coverage and reimbursement
does not imply that a product will be paid for in all cases or at a rate that covers our costs, including research, development, manufacture, sale and distribution. Third-party payors are increasingly reducing reimbursements for medical products,
drugs and services. In addition, the U.S. government, state legislatures and foreign governments have continued implementing cost containment programs, including price controls, restrictions on coverage and reimbursement and requirements for
substitution of generic products. Adoption of price controls and cost containment measures, and adoption of more restrictive policies in jurisdictions with existing controls and measures, could further limit our net revenue and results. Limited
third-party reimbursement for our product candidates or a decision by a third-party payor not to cover our product candidates could reduce physician usage of our products once approved and have a material adverse effect on our sales, results of
operations and financial condition.



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The ACA is expected to significantly impact the provision of, and payment for, health care in the United States.
Various provisions of the ACA are designed to expand Medicaid eligibility, subsidize insurance premiums, provide incentives for businesses to provide health care benefits, prohibit denials of coverage due to pre-existing conditions, establish health
insurance exchanges, and provide additional support for medical research. With regard to biopharmaceutical products, among other things, the ACA expanded and increased industry rebates for drugs covered under Medicaid programs and made changes to
the coverage requirements under the Medicare prescription drug benefit. More recently, both the Budget Control Act of 2011 and the American Taxpayer Relief Act of 2012, or the ATRA, include, among other things, mandatory reductions in Medicare
payments to certain providers. Additional legislative proposals to reform healthcare and government insurance programs, along with the trend toward managed healthcare in the United States, could influence the purchase of medicines and reduce demand
and prices for our products, if approved. This could harm our or our collaborators ability to market any products and generate revenues. Cost containment measures that healthcare payors and providers are instituting and the effect of further
healthcare reform could significantly reduce potential revenues from the sale of any of our product candidates approved in the future, and could cause an increase in our compliance, manufacturing, or other operating expenses.

In some foreign countries, the proposed pricing for a drug must be approved before it may be lawfully marketed. In addition, in certain foreign markets, the
pricing of prescription drugs is subject to government control and reimbursement may in some cases be unavailable. The requirements governing drug pricing vary widely from country to country. For example, the European Union provides options for its
member states to restrict the range of medicinal products for which their national health insurance systems provide reimbursement and to control the prices of medicinal products for human use. A member state may approve a specific price for the
medicinal product or it may instead adopt a system of direct or indirect controls on the profitability of the company placing the medicinal product on the market. There can be no assurance that any country that has price controls or reimbursement
limitations for biopharmaceutical products will allow favorable reimbursement and pricing arrangements for any of our products. Historically, biopharmaceutical products launched in the European Union do not follow price structures of the United
States and generally tend to have significantly lower prices.

We believe that pricing pressures at the federal and state levels in the United States, as
well as internationally, will continue and may increase, which may make it difficult for us to sell our potential products that may be approved in the future at a price acceptable to us or any of our future collaborators.

Our Product Candidates May Cause Undesirable Side Effects That Could Delay Or Prevent Their Regulatory Approval, Limit The Commercial Profile Of An
Approved Label, Or Result In Significant Negative Consequences Following Marketing Approval, If Any.

Our product candidates are being developed
to address the needs of severely allergic patients, for some of whom coming into contact with even minute amounts of an allergen can have a profound and life-threatening adverse reaction. Accordingly, safety is of paramount importance in developing
these product candidates. To date, four clinical trials of Viaskin Peanut and Viaskin Milk product candidates have been conducted both outside and inside of the United States in over 400 human subjects to evaluate the safety and efficacy of these
product candidates for the treatment of peanut allergies and milk allergies. Adverse events observed in these clinical trials have primarily involved general disorders and administration site conditions, such as erythema, pruritus, edema, and
urticaria. It is worth noting that, as a desensitization patch bringing the allergen into contact with the skin, reactions, which are a source of itching and discomfort for the patient. This reaction is typically temporary in duration and fades
after a few weeks of use. In addition, during daily administration of the patches during treatments, depending on the severity of the allergies and patient response to treatment, precautionary measures are necessary when handling the patches after
use due to risk of contamination.



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Undesirable side effects caused by our product candidates could cause us or regulatory authorities to interrupt,
delay, halt or terminate clinical trials and could result in a more restrictive label or the delay or denial of regulatory approval by the FDA or other regulatory authorities. Further, if our Viaskin patch product candidates receive marketing
approval and we or others identify undesirable side effects caused by the products (or any other similar products) after the approval, a number of potentially significant negative consequences could result, including:



| |  |  | regulatory authorities may withdraw or limit their approval of the products;
| | - |  | ----------------------------------------------------------------------------



| |  |  | regulatory authorities may require the addition of labeling statements, such as a boxed warning or a contraindication;
| | - |  | ------------------------------------------------------------------------------------------------------------------------



| |  |  | we may be required to change the way the products are distributed or administered, conduct additional clinical trials or change the labeling of the products;
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | we may decide to remove the products from the marketplace;
| | - |  | ----------------------------------------------------------



| |  |  | we could be sued and held liable for injury caused to individuals exposed to or taking our products; and
| | - |  | --------------------------------------------------------------------------------------------------------



| |  |  | our reputation may suffer.
| | - |  | --------------------------

Any of these events could prevent us from achieving or maintaining market
acceptance of the affected products and could substantially increase the costs of commercializing our products and significantly impact our ability to successfully commercialize our products and generate revenues.

Our Future Growth Depends, In Part, On Our Ability To Penetrate Foreign Markets, Where We Would Be Subject To Additional Regulatory Burdens And Other
Risks And Uncertainties.

Our future profitability will depend, in part, on our ability to commercialize product candidates based on our Viaskin
technology platform in markets within and without the United States and Europe. If we commercialize product candidates based on our Viaskin technology platform in foreign markets, we would be subject to additional risks and uncertainties, including:



| |  |  | the burden of complying with complex and changing foreign regulatory, tax, accounting and legal requirements;
| | - |  | -------------------------------------------------------------------------------------------------------------



| |  |  | different medical practices and customs in foreign countries affecting acceptance in the marketplace;
| | - |  | -----------------------------------------------------------------------------------------------------



| |  |  | import or export licensing requirements;
| | - |  | ----------------------------------------



| |  |  | longer accounts receivable collection times;
| | - |  | --------------------------------------------



| |  |  | longer lead times for shipping;
| | - |  | -------------------------------



| |  |  | language barriers for technical training;
| | - |  | -----------------------------------------



| |  |  | reduced protection of intellectual property rights in some foreign countries, and related prevalence of generic alternatives to therapeutics;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | foreign currency exchange rate fluctuations;
| | - |  | --------------------------------------------



| |  |  | patients ability to obtain reimbursement for Viaskin patch products in foreign markets; and
| | - |  | --------------------------------------------------------------------------------------------



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| |  |  | the interpretation of contractual provisions governed by foreign laws in the event of a contract dispute.
| | - |  | ---------------------------------------------------------------------------------------------------------

Foreign sales of Viaskin patch products could also be adversely affected by the imposition of governmental controls, political and economic instability, trade
restrictions and changes in tariffs.

We Are Subject To Healthcare Laws And Regulations, Which Could Expose Us To Criminal Sanctions, Civil
Penalties, Exclusion from Government Healthcare Programs, Contractual Damages, Reputational Harm And Diminished Profits And Future Earnings, Among Other Consequences.

Healthcare providers, physicians and others will play a primary role in the recommendation and prescription of Viaskin patch products, if approved. Our
arrangements with such persons and third-party payors will expose us to broadly applicable fraud and abuse and other healthcare laws and regulations that may constrain the business or financial arrangements and relationships through which we
research, market, sell and distribute Viaskin patch products, if we obtain marketing approval. Restrictions under applicable federal, state and foreign healthcare laws and regulations include but are not limited to the following:



| |  |  | The federal Anti-Kickback Statute prohibits, among other things, persons and entities from knowingly and willfully soliciting, offering, receiving or providing remuneration (including any kickback, bribe or rebate),
directly or indirectly, in cash or in kind, to induce or reward, or in return for, either the referral of an individual for or the purchase, lease, order or recommendation of any item, good, facility or service for which payment may be made under
federal healthcare programs such as Medicare and Medicaid.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | The federal civil and criminal false claims laws and civil monetary penalties laws, including the civil False Claims Act, impose criminal and civil penalties, including those from civil whistleblower or qui tam actions,
against individuals or entities for, among other things, knowingly presenting, or causing to be presented, claims for payment that are false or fraudulent or making a false statement to avoid, decrease, or conceal an obligation to pay money to the
federal government.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | The federal Health Insurance Portability and Accountability Act of 1996, or HIPAA, which created federal criminal and civil liability for, among other things, executing a scheme to defraud any healthcare benefit program
or knowingly and willingly falsifying, concealing or covering up a material fact or making false statements relating to healthcare matters.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act, or HITECH, and its implementing regulations, which impose certain requirements on covered entities and their business
associates, including mandatory contractual terms, with respect to safeguarding the privacy, security and transmission of individually identifiable health information.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | The federal transparency requirements under the Physician Payments Sunshine Act, enacted as part of the ACA, that require applicable manufacturers of covered drugs, devices, biologics and medical supplies for which
payment is available under Medicare, Medicaid, or the Childrens Health Insurance Program, with specific exceptions, to track and annually report to the U.S. Department of Health and Human Services Center for Medicare & Medicaid
Services, or CMS, payments and other transfers of value provided to physicians and teaching hospitals and certain ownership and investment interests held by physicians or their immediate family members in the applicable manufacturer, and disclosure
of such information will be made by CMS on a publicly available website.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Analogous state or foreign laws and regulations, such as state anti-kickback and false claims laws, which may
apply to items or services reimbursed by any third-party payor, including commercial insurers, state marketing and/or transparency laws applicable to manufacturers that may be broader in scope than the federal requirements, state laws that require
biopharmaceutical companies to comply with the biopharmaceutical industrys voluntary compliance guidelines and the relevant compliance guidance
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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| | promulgated by the federal government, and state laws governing the privacy and security of health information in certain circumstances, many of which differ from each other in significant ways
and may not have the same effect as HIPAA.
| | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Because of the breadth of these laws and the narrowness of the statutory exceptions and safe
harbors available, it is possible that some of our current and/or future business activities could be subject to challenge under one or more of these laws. In addition, recent health care reform legislation has strengthened these laws. For example,
the Health Care Reform Law, among other things, amends the intent requirement of the federal Anti-Kickback Statute and criminal healthcare fraud statutes, in that a person or entity no longer needs to have actual knowledge of the statute or specific
intent to violate it in order to commit a violation. Moreover, the Health Care Reform Law provides that the government may assert that a claim including items or services resulting from a violation of the federal Anti-Kickback Statute constitutes a
false or fraudulent claim for purposes of the U.S. civil False Claims Act.

Ensuring that our business arrangements with third parties comply with
applicable healthcare laws and regulations could be costly. It is possible that governmental authorities will conclude that our business practices other healthcare laws and regulations. If our operations were found to be in violation of any of these
laws or any other governmental regulations that may apply to us, we may be subject to significant civil, criminal and administrative penalties, damages, fines, disgorgement, individual imprisonment, exclusion from government funded healthcare
programs, such as Medicare and Medicaid, contractual damages, reputational harm, diminished profits and future earnings, and curtailment of operations, any of which could substantially disrupt our operations. Defending against any such actions can
be costly, time-consuming and may require significant financial and personnel resources. Therefore, even if we are successful in defending against any such actions that may be brought against us, our business may be impaired. If the physicians or
other providers or entities with whom we expect to do business are found not to be in compliance with applicable laws, they may be subject to criminal, civil or administrative sanctions, including exclusion from government funded healthcare
programs.

Changes In Regulatory Requirements, FDA Guidance Or Guidance From Certain European Regulatory Authorities Or Unanticipated Events During
Our Clinical Trials Of Viaskin Patch Products May Occur, Which May Result In Changes To Clinical Trial Protocols Or Additional Clinical Trial Requirements, Which Could Result In Increased Costs To Us And Could Delay Our Development Timeline.

Changes in regulatory requirements, FDA guidance or guidance from certain European regulatory authorities or unanticipated events during our
clinical trials may force us to amend clinical trial protocols or the FDA or certain European regulatory authorities may impose additional clinical trial requirements. These discussions have caused us to adjust certain trial protocols. Similar
amendments to our clinical trial protocols would require resubmission to the FDA and IRBs for review and approval, which may adversely impact the cost, timing or successful completion of a clinical trial. If we experience delays completing, or if we
terminate, any of our clinical trials, or if we are required to conduct additional clinical trials, the commercial prospects for the Viaskin patch product candidates, or any other product candidates, may be harmed and our ability to generate product
revenue will be delayed.

The FDA And Other Regulatory Agencies Actively Enforce The Laws And Regulations Prohibiting The Promotion Of Off-label
Uses. If We Are Found To Have Improperly Promoted Off-label Uses, We May Become Subject To Significant Liability.

The FDA and other regulatory
agencies strictly regulate the promotional claims that may be made about prescription products, such as Viaskin patch products, if approved. In particular, a product may not be promoted for uses that are not approved by the FDA or such other
regulatory agencies as reflected in the products approved labeling. If we receive marketing approval for Viaskin patch products as a treatment for a particular allergy, physicians, in their professional medical judgment, may nevertheless
prescribe Viaskin patch products to their patients in a manner that is inconsistent with the approved label. If we are found to have promoted such off-label



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uses, we may become subject to significant liability under the FDCA and other statutory authorities, such as laws prohibiting false claims for reimbursement. The federal government has levied
large civil and criminal fines against companies for alleged improper promotion and has enjoined several companies from engaging in off-label promotion. The FDA has also requested that companies enter into consent decrees or permanent injunctions
under which specified promotional conduct is changed or curtailed. If we cannot successfully manage the marketing of Viaskin patch products, if approved, by restricting off-label promotion, we could become subject to significant liability, which
would materially adversely affect our business and financial condition.

We May Not Obtain Biopharmaceutical Company Status And Therefore Have To
Rely On Contract Manufacturers Indefinitely.

To date, we do not have biopharmaceutical company status, or PCS, and therefore, cannot manufacture
the product candidates that we develop in France. A company with premises located in France must submit an application to the French Drug and Health Products Safety Agency, or ANSM, in order to get PCS status. The ANSM grants PCS to a company upon
evaluation and determination that such companys premises has adequate personnel, procedure and organization. We intend to seek PCS when our Viaskin patch product candidates have received MAA and thereby have the ability to manufacture our
product candidates without contracting third parties. There are two types of PCS: (1) distributor exploitant status, which permits medicines to be marketed directly in France by the company after demonstrating control of certain key
functions such as pharmacovigilance, medical information and advertising, management of quality complaints and batch recall; and (2) manufacturer status, which permits the manufacturing and quality control of medicines after demonstrating
adequate manufacturing and quality control premises that exhibit a quality assurance system that meets cGMP.

Failure to obtain PCS status would force us
to revise our strategy. First, failure to obtain manufacturer status would force us to entrust the manufacturing and control of the therapeutic products to one or more specialized contract manufacturing organizations, or CMOs, as is the case with
the current production of our clinical lots. Second, if distributor exploitant status was not obtained, we could not conduct a direct commercial approach to the French market and would therefore have to enter into marketing license
agreements with other biopharmaceutical companies. Failure to obtain any of the two types of PCS status would affect the production and marketing of our product candidates, once approved, and could be detrimental to our business, earnings, financial
conditions and growth prospects.

Our Product Development Programs For Candidates Other Than Viaskin Patch Products May Require Substantial
Financial Resources And May Ultimately Be Unsuccessful.

The success of our business depends primarily upon our ability to identify, develop and
commercialize products to treat common food and/or environmental allergies. In addition to the development of Viaskin Peanut and Viaskin Milk, we may pursue development of our other development programs, including Viaskin Egg. None of our other
potential product candidates has commenced any clinical trials, and there are a number of FDA requirements that we must satisfy before we can commence clinical trials. Satisfaction of these requirements will entail substantial time, effort and
financial resources. We may never satisfy these requirements. Any time, effort and financial resources we expend on our other development programs may adversely affect our ability to continue development and commercialization of Viaskin Peanut and
Viaskin Milk, and we may never commence clinical trials of such development programs despite expending significant resources in pursuit of their development. If we do commence clinical trials of our other potential product candidates, such product
candidates may never be approved by the FDA. If any of these events occur, we may be forced to abandon our development efforts for a program or programs, which would have a material adverse effect on our business and could potentially cause us to
cease operations.



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If We Do Not Secure Collaborations With Strategic Partners To Test, Commercialize And Manufacture Certain
Product Candidates Outside Of Food Allergies, We May Not Be Able To Successfully Develop Products And Generate Meaningful Revenues.

A key aspect
of our current strategy is to selectively enter into collaborations with third parties to conduct clinical testing, as well as to commercialize and manufacture product candidates outside food allergies. Our ability to generate revenues from these
arrangements will depend on our collaborators abilities to successfully perform the functions assigned to them in these arrangements. We currently have multiple collaboration agreements in effect, including collaborations for the development
of applications in the field of respiratory allergies or autoimmune disease, as well as other therapeutic domains, such as vaccines. Collaboration agreements typically call for milestone payments that depend on successful demonstration of efficacy
and safety, obtaining regulatory approvals, and clinical trial results. Collaboration revenues are not guaranteed, even when efficacy and safety are demonstrated. The current economic environment may result in potential collaborators electing to
reduce their external spending, which may prevent us from developing our product candidates.

Even if we succeed in securing collaborators, the
collaborators may fail to develop or effectively commercialize products using our product candidates. Collaborations involving our product candidates pose a number of risks, including the following:



| |  |  | collaborators may not have sufficient resources or decide not to devote the necessary resources due to internal constraints such as budget limitations, lack of human resources, or a change in strategic focus;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | collaborators may believe our intellectual property is not valid, is not infringed by potential competitors or is unenforceable or the product candidate infringes on the intellectual property rights of others;
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | collaborators may dispute their responsibility to conduct development and commercialization activities pursuant to the applicable collaboration, including the payment of related costs or the division of any revenues;
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | collaborators may decide to pursue a competitive product developed outside of the collaboration arrangement;
| | - |  | ------------------------------------------------------------------------------------------------------------



| |  |  | collaborators may not be able to obtain, or believe they cannot obtain, the necessary regulatory approvals; or
| | - |  | --------------------------------------------------------------------------------------------------------------



| |  |  | collaborators may delay the development or commercialization of our product candidates in favor of developing or commercializing another partys product candidate.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------

Thus, collaboration agreements may not lead to development or commercialization of product candidates in the most efficient manner or at all.

Collaboration agreements are generally terminable without cause on short notice. Once a collaboration agreement is signed, it may not lead to
commercialization of a product candidate. We also face competition in seeking out collaborators. If we are unable to secure new collaborations that achieve the collaborators objectives and meet our expectations, we may be unable to advance our
product candidates and may not generate meaningful revenues.

Intellectual Property Risks Related to Our Business

Our Ability To Compete May Decline If We Do Not Adequately Protect Our Proprietary Rights.

Our commercial success depends on obtaining and maintaining proprietary rights to our product candidates for the treatment of common food and/or environmental
allergies, as well as successfully defending these rights against third-party challenges. We will only be able to protect our product candidates, and their uses from unauthorized use



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by third parties to the extent that valid and enforceable patents, or effectively protected trade secrets, cover them. Our ability to obtain patent protection for our product candidates is
uncertain due to a number of factors, including:



| |  |  | we may not have been the first to make the inventions covered by pending patent applications or issued patents;
| | - |  | ---------------------------------------------------------------------------------------------------------------



| |  |  | we may not have been the first to file patent applications for our product candidates or the compositions we developed or for their uses;
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------



| |  |  | others may independently develop identical, similar or alternative products or compositions and uses thereof;
| | - |  | -------------------------------------------------------------------------------------------------------------



| |  |  | our disclosures in patent applications may not be sufficient to meet the statutory requirements for patentability;
| | - |  | ------------------------------------------------------------------------------------------------------------------



| |  |  | any or all of our pending patent applications may not result in issued patents;
| | - |  | -------------------------------------------------------------------------------



| |  |  | we may not seek or obtain patent protection in countries that may eventually provide us a significant business opportunity;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------



| |  |  | any patents issued to us may not provide a basis for commercially viable products, may not provide any competitive advantages, or may be successfully challenged by third parties;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | our compositions and methods may not be patentable;
| | - |  | ---------------------------------------------------



| |  |  | others may design around our patent claims to produce competitive products which fall outside of the scope of our patents; or
| | - |  | -----------------------------------------------------------------------------------------------------------------------------



| |  |  | others may identify prior art or other bases which could invalidate our patents.
| | - |  | --------------------------------------------------------------------------------

Even if we have or obtain
patents covering our product candidates or compositions, we may still be barred from making, using and selling our product candidates or technologies because of the patent rights of others. Others may have filed, and in the future may file, patent
applications covering compositions or products that are similar or identical to ours. There are many issued U.S. and foreign patents relating to chemical compounds and therapeutic products, and some of these relate to compounds we intend to
commercialize. Numerous U.S. and foreign issued patents and pending patent applications owned by others exist in the allergy treatment field in which we are developing products. These could materially affect our ability to develop our product
candidates or sell our products if approved. Because patent applications can take many years to issue, there may be currently pending applications unknown to us that may later result in issued patents that our product candidates or compositions may
infringe. These patent applications may have priority over patent applications filed by us.

Obtaining and maintaining a patent portfolio entails
significant expense and resources. Part of the expense includes periodic maintenance fees, renewal fees, annuity fees, various other governmental fees on patents and/or applications due in several stages over the lifetime of patents and/or
applications, as well as the cost associated with complying with numerous procedural provisions during the patent application process. We may or may not choose to pursue or maintain protection for particular inventions. In addition, there are
situations in which failure to make certain payments or noncompliance with certain requirements in the patent process can result in abandonment or lapse of a patent or patent application, resulting in partial or complete loss of patent rights in the
relevant jurisdiction. If we choose to forgo patent protection or allow a patent application or patent to lapse purposefully or inadvertently, our competitive position could suffer.

Legal actions to enforce our patent rights can be expensive and may involve the diversion of significant management time. In addition, these legal actions
could be unsuccessful and could also result in the invalidation of our patents or a finding that they are unenforceable. We may or may not choose to pursue litigation or other actions



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against those that have infringed on our patents, or used them without authorization, due to the associated expense and time commitment of monitoring these activities. If we fail to protect or to
enforce our intellectual property rights successfully, our competitive position could suffer, which could harm our results of operations.

Biopharmaceutical Patents And Patent Applications Involve Highly Complex Legal And Factual Questions, Which, If Determined Adversely To Us, Could
Negatively Impact Our Patent Position.

The patent positions of biopharmaceutical companies can be highly uncertain and involve complex legal and
factual questions. The interpretation and breadth of claims allowed in some patents covering biopharmaceutical compositions may be uncertain and difficult to determine, and are often affected materially by the facts and circumstances that pertain to
the patented compositions and the related patent claims. The standards of the United States Patent and Trademark Office, or USPTO, are sometimes uncertain and could change in the future. Consequently, the issuance and scope of patents cannot be
predicted with certainty. Patents, if issued, may be challenged, invalidated or circumvented. U.S. patents and patent applications may also be subject to interference proceedings, and U.S. patents may be subject to reexamination proceedings,
post-grant review and/or inter partes review in the USPTO. Foreign patents may be subject also to opposition or comparable proceedings in the corresponding foreign patent office, which could result in either loss of the patent or denial of the
patent application or loss or reduction in the scope of one or more of the claims of the patent or patent application. In addition, such interference, reexamination, post-grant review, inter partes review and opposition proceedings may be costly.
Accordingly, rights under any issued patents may not provide us with sufficient protection against competitive products or processes.

In addition,
changes in or different interpretations of patent laws in the United States and foreign countries may permit others to use our discoveries or to develop and commercialize our technology and products without providing any compensation to us, or may
limit the number of patents or claims we can obtain. The laws of some countries do not protect intellectual property rights to the same extent as U.S. laws and those countries may lack adequate rules and procedures for defending our intellectual
property rights.

If we fail to obtain and maintain patent protection and trade secret protection of our product candidates, we could lose our competitive
advantage and competition we face would increase, reducing any potential revenues and adversely affecting our ability to attain or maintain profitability.

Developments In Patent Law Could Have A Negative Impact On Our Business.

From time to time, the United States Supreme Court, or the Supreme Court, other federal courts, the United States Congress, the USPTO or similar foreign
authorities may change the standards of patentability and any such changes could have a negative impact on our business.

In addition, the Leahy-Smith
America Invents Act, or the America Invents Act, which was signed into law in 2011, includes a number of significant changes to U.S. patent law. These changes include a transition from a first-to-invent system to a
first-to-file system, changes to the way issued patents are challenged, and changes to the way patent applications are disputed during the examination process. These changes may favor larger and more established companies that have
greater resources to devote to patent application filing and prosecution. The USPTO has developed new and untested regulations and procedures to govern the full implementation of the America Invents Act, and many of the substantive changes to patent
law associated with the America Invents Act, and, in particular, the first-to-file provisions, became effective on March 16, 2013. Substantive changes to patent law associated with the America Invents Act may affect our ability to obtain
patents, and if obtained, to enforce or defend them. Accordingly, it is not clear what, if any, impact the America Invents Act will have on the cost of prosecuting our patent applications, our ability to obtain patents based on our discoveries and
our ability to enforce or defend any patents that may issue from our patent applications, all of which could have a material adverse effect on our business.



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If We Are Unable To Protect The Confidentiality Of Our Trade Secrets, Our Business And Competitive Position
Would Be Harmed.

In addition to patent protection, because we operate in the highly technical field of development of therapies, we rely in part
on trade secret protection in order to protect our proprietary technology and processes. However, trade secrets are difficult to protect. We expect to enter into confidentiality and intellectual property assignment agreements with our employees,
consultants, outside scientific collaborators, sponsored researchers, and other advisors. These agreements generally require that the other party keep confidential and not disclose to third parties all confidential information developed by the party
or made known to the party by us during the course of the partys relationship with us. These agreements also generally provide that inventions conceived by the party in the course of rendering services to us will be our exclusive property.
However, these agreements may not be honored and may not effectively assign intellectual property rights to us.

In addition to contractual measures, we
try to protect the confidential nature of our proprietary information using physical and technological security measures. Such measures may not, for example, in the case of misappropriation of a trade secret by an employee or third party with
authorized access, provide adequate protection for our proprietary information. Our security measures may not prevent an employee or consultant from misappropriating our trade secrets and providing them to a competitor, and recourse we take against
such misconduct may not provide an adequate remedy to protect our interests fully. Enforcing a claim that a party illegally disclosed or misappropriated a trade secret can be difficult, expensive, and time-consuming, and the outcome is
unpredictable. In addition, courts outside the United States may be less willing to protect trade secrets. Trade secrets may be independently developed by others in a manner that could prevent legal recourse by us. If any of our confidential or
proprietary information, such as our trade secrets, were to be disclosed or misappropriated, or if any such information was independently developed by a competitor, our competitive position could be harmed.

We Will Not Seek To Protect Our Intellectual Property Rights In All Jurisdictions Throughout The World And We May Not Be Able To Adequately Enforce Our
Intellectual Property Rights Even In The Jurisdictions Where We Seek Protection.

Filing, prosecuting and defending patents on our product
candidates in all countries and jurisdictions throughout the world would be prohibitively expensive, and our intellectual property rights in some countries outside the United States could be less extensive than those in the United States, assuming
that rights are obtained in the United States. In addition, the laws of some foreign countries do not protect intellectual property rights to the same extent as federal and state laws in the United States. Consequently, we may not be able to prevent
third parties from practicing our inventions in all countries outside the United States, or from selling or importing products made using our inventions in and into the United States or other jurisdictions. The statutory deadlines for pursuing
patent protection in individual foreign jurisdictions are based on the priority dates of each of our patent applications.

Competitors may use our
technologies in jurisdictions where we do not pursue and obtain patent protection to develop their own products and further, may export otherwise infringing products to territories where we have patent protection, but enforcement is not as strong as
that in the United States. These products may compete with our products and our patents or other intellectual property rights may not be effective or sufficient to prevent them from competing. Even if we pursue and obtain issued patents in
particular jurisdictions, our patent claims or other intellectual property rights may not be effective or sufficient to prevent third parties from so competing.

The laws of some foreign countries do not protect intellectual property rights to the same extent as the laws of the United States. Many companies have
encountered significant problems in protecting and defending intellectual



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property rights in certain foreign jurisdictions. The legal systems of some countries, particularly developing countries, do not favor the enforcement of patents and other intellectual property
protection, especially those relating to biopharmaceuticals or biotechnologies. This could make it difficult for us to stop the infringement of our patents, if obtained, or the misappropriation of our other intellectual property rights. For example,
many foreign countries have compulsory licensing laws under which a patent owner must grant licenses to third parties. In addition, many countries limit the enforceability of patents against third parties, including government agencies or government
contractors. In these countries, patents may provide limited or no benefit. Patent protection must ultimately be sought on a country-by-country basis, which is an expensive and time- consuming process with uncertain outcomes. Accordingly, we may
choose not to seek patent protection in certain countries, and we will not have the benefit of patent protection in such countries.

Proceedings to
enforce our patent rights in foreign jurisdictions could result in substantial costs and divert our efforts and attention from other aspects of our business, could put our patents at risk of being invalidated or interpreted narrowly, could put our
patent applications at risk of not issuing and could provoke third parties to assert claims against us. We may not prevail in any lawsuits that we initiate and the damages or other remedies awarded, if any, may not be commercially meaningful. In
addition, changes in the law and legal decisions by courts in the United States and foreign countries may affect our ability to obtain adequate protection for our technology and the enforcement of intellectual property. Accordingly, our efforts to
enforce our intellectual property rights around the world may be inadequate to obtain a significant commercial advantage from the intellectual property that we develop or license.

Third Parties May Assert Ownership Or Commercial Rights To Inventions We Develop.

Third parties may in the future make claims challenging the inventorship or ownership of our intellectual property. We have written agreements with
collaborators that provide for the ownership of intellectual property arising from our collaborations. These agreements provide that we must negotiate certain commercial rights with collaborators with respect to joint inventions or inventions made
by our collaborators that arise from the results of the collaboration. In some instances, there may not be adequate written provisions to address clearly the resolution of intellectual property rights that may arise from a collaboration. If we
cannot successfully negotiate sufficient ownership and commercial rights to the inventions that result from our use of a third-party collaborators materials where required, or if disputes otherwise arise with respect to the intellectual
property developed with the use of a collaborators samples, we may be limited in our ability to capitalize on the market potential of these inventions. In addition, we may face claims by third parties that our agreements with employees,
contractors, or consultants obligating them to assign intellectual property to us are ineffective, or in conflict with prior or competing contractual obligations of assignment, which could result in ownership disputes regarding intellectual property
we have developed or will develop and interfere with our ability to capture the commercial value of such inventions. Litigation may be necessary to resolve an ownership dispute, and if we are not successful, we may be precluded from using certain
intellectual property, or may lose our exclusive rights in that intellectual property. Either outcome could have an adverse impact on our business.

Third Parties May Assert That Our Employees Or Consultants Have Wrongfully Used Or Disclosed Confidential Information Or Misappropriated Trade Secrets.

We employ individuals who were previously employed at universities or other biopharmaceutical companies, including our competitors or potential
competitors. Although we try to ensure that our employees and consultants do not use the proprietary information or know-how of others in their work for us, we may be subject to claims that we or our employees, consultants or independent contractors
have inadvertently or otherwise used or disclosed intellectual property, including trade secrets or other proprietary information, of a former employer or other third parties. Litigation may be necessary to defend against these claims. If we fail in
defending any such claims, in addition to paying monetary damages, we may lose valuable intellectual property rights or personnel. Even if we are successful in defending against such claims, litigation could result in substantial costs and be a
distraction to management and other employees.



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A Dispute Concerning The Infringement Or Misappropriation Of Our Proprietary Rights Or The Proprietary
Rights Of Others Could Be Time Consuming And Costly, And An Unfavorable Outcome Could Harm Our Business.

There is significant litigation in the
biopharmaceutical industry regarding patent and other intellectual property rights. While we are not currently subject to any pending intellectual property litigation, and are not aware of any such threatened litigation, we may be exposed to future
litigation by third parties based on claims that our product candidates, technologies or activities infringe the intellectual property rights of others. If our development activities are found to infringe any such patents, we may have to pay
significant damages or seek licenses to such patents. A patentee could prevent us from using the patented drugs or compositions. We may need to resort to litigation to enforce a patent issued to us, to protect our trade secrets, or to determine the
scope and validity of third-party proprietary rights. From time to time, we may hire scientific personnel or consultants formerly employed by other companies involved in one or more areas similar to the activities conducted by us. Either we or these
individuals may be subject to allegations of trade secret misappropriation or other similar claims as a result of prior affiliations. If we become involved in litigation, it could consume a substantial portion of our managerial and financial
resources, regardless of whether we win or lose. We may not be able to afford the costs of litigation. Any adverse ruling or perception of an adverse ruling in defending ourselves against these claims could have a material adverse impact on our cash
position and the price of the ADSs. Any legal action against us or our collaborators could lead to:



| |  |  | payment of damages, potentially treble damages, if we are found to have willfully infringed a partys patent rights;
| | - |  | --------------------------------------------------------------------------------------------------------------------



| |  |  | injunctive or other equitable relief that may effectively block our ability to further develop, commercialize, and sell products; or
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------



| |  |  | us or our collaborators having to enter into license arrangements that may not be available on commercially acceptable terms, if at all, all of which could have a material adverse impact on our cash position and
business and financial condition. As a result, we could be prevented from commercializing current or future product candidates.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

We
May Infringe The Intellectual Property Rights Of Others, Which May Prevent Or Delay Our Product Development Efforts And Stop Us From Commercializing Or Increase The Costs Of Commercializing Our Product Candidates, If Approved.

Our success will depend in part on our ability to operate without infringing the intellectual property and proprietary rights of third parties. We cannot
assure you that our business, products and methods do not or will not infringe the patents or other intellectual property rights of third parties.

The
biopharmaceutical industry is characterized by extensive litigation regarding patents and other intellectual property rights. Other parties may allege that our product candidates or the use of our technologies infringes patent claims or other
intellectual property rights held by them or that we are employing their proprietary technology without authorization. Patent and other types of intellectual property litigation can involve complex factual and legal questions, and their outcome is
uncertain. Any claim relating to intellectual property infringement that is successfully asserted against us may require us to pay substantial damages, including treble damages and attorneys fees if we are found to be willfully infringing
another partys patents, for past use of the asserted intellectual property and royalties and other consideration going forward if we are forced to take a license. In addition, if any such claim were successfully asserted against us and we
could not obtain such a license, we may be forced to stop or delay developing, manufacturing, selling or otherwise commercializing Viaskin patch products.



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Even if we are successful in these proceedings, we may incur substantial costs and divert management time and
attention in pursuing these proceedings, which could have a material adverse effect on us. If we are unable to avoid infringing the patent rights of others, we may be required to seek a license, defend an infringement action or challenge the
validity of the patents in court, or redesign our products. Patent litigation is costly and time consuming. We may not have sufficient resources to bring these actions to a successful conclusion. In addition, intellectual property litigation or
claims could force us to do one or more of the following:



| |  |  | cease developing, selling or otherwise commercializing our product candidates;
| | - |  | ------------------------------------------------------------------------------



| |  |  | pay substantial damages for past use of the asserted intellectual property;
| | - |  | ---------------------------------------------------------------------------



| |  |  | obtain a license from the holder of the asserted intellectual property, which license may not be available on reasonable terms, if at all; and
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | in the case of trademark claims, redesign, or rename, Viaskin, Diallertest or other trademarks we may own, to avoid infringing the intellectual property rights of third parties, which may not be possible and, even if
possible, could be costly and time-consuming.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Any of these risks coming to fruition could have a material adverse effect on our business,
results of operations, financial condition and prospects.

Issued Patents Covering Our Product Candidates Could Be Found Invalid Or Unenforceable If
Challenged In Court.

If we or one of our licensing partners initiated legal proceedings against a third party to enforce a patent covering our
product candidate, the defendant could counterclaim that the patent covering our product candidate is invalid and/or unenforceable. In patent litigation in the United States, defendant counterclaims alleging invalidity and/or unenforceability are
commonplace. Grounds for a validity challenge include alleged failures to meet any of several statutory requirements, including lack of novelty, obviousness or non-enablement. Grounds for unenforceability assertions include allegations that someone
connected with prosecution of the patent withheld relevant information from the USPTO, or made a misleading statement, during prosecution. Third parties may also raise similar claims before administrative bodies in the United States or abroad, even
outside the context of litigation. Such mechanisms include re-examination, post grant review and equivalent proceedings in foreign jurisdictions, e.g., opposition proceedings. Such proceedings could result in revocation or amendment of our patents
in such a way that they no longer cover our product candidates or competitive products. The outcome following legal assertions of invalidity and unenforceability is unpredictable. With respect to validity, for example, we cannot be certain that
there is no invalidating prior art, of which we and the patent examiner were unaware during prosecution. If a defendant were to prevail on a legal assertion of invalidity and/or unenforceability, we would lose at least part, and perhaps all, of the
patent protection on our product candidates. Such a loss of patent protection would have a material adverse impact on our business.

Risks Related to
Our Organization, Structure and Operation

We Will Need To Develop And Expand Our Company, And We May Encounter Difficulties In Managing This
Development And Expansion, Which Could Disrupt Our Operations.

As of December 31, 2015, we had 91 full-time employees and we expect to
significantly increase our number of employees and the scope of our operations. To manage our anticipated development and expansion, including the commercialization of our product candidates in North America, we must continue to implement and
improve our



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managerial, operational and financial systems, expand our facilities and continue to recruit and train additional qualified personnel. Also, our management may need to divert a disproportionate
amount of its attention away from our day-to-day activities and devote a substantial amount of time to managing these development activities. Due to our limited resources, we may not be able to effectively manage the expansion of our operations or
recruit and train additional qualified personnel. This may result in weaknesses in our infrastructure, give rise to operational mistakes, loss of business opportunities, loss of employees and reduced productivity among remaining employees. The
physical expansion of our operations may lead to significant costs and may divert financial resources from other projects, such as the development of our product candidates. If our management is unable to effectively manage our expected development
and expansion, our expenses may increase more than expected, our ability to generate or increase our revenue could be reduced and we may not be able to implement our business strategy. Our future financial performance and our ability to
commercialize our product candidates, if approved, and compete effectively will depend, in part, on our ability to effectively manage the future development and expansion of our company.

We Depend On Key Personnel And Attracting Qualified Management Personnel And Our Business Could Be Harmed If We Lose Key Personnel And Cannot Attract
New Personnel.

Our success depends to a significant degree upon the technical and management skills of our officers and key personnel, including
in particular those of Pierre-Henri Benhamou, our Chairman and Chief Executive Officer, and Bertrand Dupont, our Senior Executive Vice President, Technology. The loss of the services of any of these individuals would likely have a material adverse
effect on us. Our success also will depend upon our ability to attract and retain additional qualified management, marketing, technical, and sales executives and personnel. The loss of any of our key executives, or the failure to attract, integrate,
motivate, and retain additional key personnel could have a material adverse effect on our business.

We compete for such personnel against numerous
companies, including larger, more established companies with significantly greater financial resources than we possess. There can be no assurance that we will be successful in attracting or retaining such personnel and the failure to do so could
have a material adverse effect on our business, financial condition, and results of operations.

Our Employees May Engage In Misconduct Or Other
Improper Activities, Including Violating Applicable Regulatory Standards And Requirements Or Engaging In Insider Trading, Which Could Significantly Harm Our Business.

We are exposed to the risk of employee fraud or other misconduct. Misconduct by employees could include intentional failures to: comply with the regulations
of the FDA and applicable non-U.S. regulators, provide accurate information to the FDA and applicable non-U.S. regulators, comply with fraud and abuse and other healthcare laws and regulations in the United States and abroad, report financial
information or data accurately or disclose unauthorized activities to us. In particular, sales, marketing and business arrangements in the healthcare industry are subject to extensive laws and regulations intended to prevent fraud, misconduct,
kickbacks, self- dealing and other abusive practices. These laws and regulations restrict or prohibit a wide range of pricing, discounting, marketing and promotion, sales commission, customer incentive programs and other business arrangements.
Employee misconduct could also involve the improper use of, including trading on, information obtained in the course of clinical trials, which could result in regulatory sanctions and serious harm to our reputation. We have adopted a code of
conduct, but it is not always possible to identify and deter employee misconduct, and the precautions we take to detect and prevent this activity may be ineffective in controlling unknown or unmanaged risks or losses or in protecting us from
governmental investigations or other actions or lawsuits stemming from a failure to comply with these laws or regulations. If any such actions are instituted against us, and we are not successful in defending ourselves or asserting our rights, those
actions could have a significant impact on our business, including the imposition of significant fines or other sanctions.



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Product Liability And Other Lawsuits Could Divert Our Resources, Result In Substantial Liabilities And
Reduce The Commercial Potential Of Our Product Candidates.

The risk that we may be sued on product liability claims is inherent in the
development and commercialization of biopharmaceutical products. Side effects of, or manufacturing defects in, products that we develop could result in the deterioration of a patients condition, injury or even death. For example, product
liability claims may be brought by patients participating in our clinical trials as a result of unexpected side effects from our product candidates. Once a product is approved for sale and commercialized, the likelihood of product liability lawsuits
increases. Criminal or civil proceedings might be filed against us by patients, the regulatory authorities, biopharmaceutical companies and any other third party using or marketing our products. These actions could include claims resulting from acts
by our partners, licensees and subcontractors, over which we have little or no control. These lawsuits may divert our management from pursuing our business strategy and may be costly to defend. In addition, if we are held liable in any of these
lawsuits, we may incur substantial liabilities and may be forced to limit or forgo further commercialization of the affected products.

We may be subject
to legal or administrative proceedings and litigation other than product liability lawsuits which may be costly to defend and could materially harm our business, financial condition and operations.

We maintain product liability insurance coverage for our clinical trials with an 11.0 million annual aggregate coverage limit. Nevertheless, our
insurance coverage may be insufficient to reimburse us for any expenses or losses we may suffer. In addition, in the future, we may not be able to obtain or maintain sufficient insurance coverage at an acceptable cost or to otherwise protect against
potential product or other legal or administrative liability claims by us or our partners, licensees or subcontractors, which could prevent or inhibit the commercial production and sale of any of our product candidates that receive regulatory
approval, which could adversely affect our business. Product liability claims could also harm our reputation, which may adversely affect our collaborators ability to commercialize our products successfully.

Our Failure To Maintain Certain Tax Benefits Applicable To French Technology Companies May Adversely Affect Our Results Of Operations.

As a French technology company, we have benefited from certain tax advantages, including, for example, the CIR. The CIR is a French tax credit aimed at
stimulating research and development. The CIR can be offset against French corporate income tax due and the portion in excess (if any) may be refunded at the end of a three fiscal-year period. The CIR is calculated based on our claimed amount of
eligible research and development expenditures in France and represented 3.3 million, 4.3 million and 5.7 million as of December 31, 2013, 2014 and 2015, respectively. The French tax authority with the
assistance of the Research and Technology Ministry may audit each research and development program in respect of which a CIR benefit has been claimed and assess whether such program qualifies in its view for the CIR benefit. The French tax
authorities may challenge our eligibility to, or our calculation of certain tax reductions and/or deductions in respect of our research and development activities and, should the French tax authorities be successful, we may be liable to additional
corporate income tax, and penalties and interest related thereto, which could have a significant impact on our results of operations and future cash flows. Furthermore, if the French Parliament decides to eliminate, or reduce the scope or the rate
of, the CIR benefit, either of which it could decide to do at any time, our results of operations could be adversely affected.

We May Be Forced To
Repay Conditional Advances Prematurely If We Fail To Comply With Our Contractual Obligations Under The Applicable Innovation Grant Agreements.

Since inception, we have received multiple conditional advances totaling 5.7 million for innovation granted by OSEO, the French Agency for
Innovation and part of theBanque Publique dInvestissement. If we fail to comply with our contractual obligations under the applicable innovation grant agreements, including if we lose our exclusive right to commercially develop our
product candidates, we could be forced to repay the sums advanced



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ahead of schedule. Such premature repayment could adversely affect our ability to finance our research and development projects. In addition, we cannot ensure that we will then have the
additional financial means needed, the time or the ability to replace these financial resources with others.

We May Be Exposed To Significant
Foreign Exchange Risk. Exchange Rate Fluctuations May Adversely Affect The Foreign Currency Value Of Our ADSs.

We incur portions of our expenses,
and may in the future derive revenues, in currencies other than the euro, in particular, the U.S. dollar. As a result, we are exposed to foreign currency exchange risk as our results of operations and cash flows are subject to fluctuations in
foreign currency exchange rates. We currently do not engage in hedging transactions to protect against uncertainty in future exchange rates between particular foreign currencies and the euro. Therefore, for example, an increase in the value of the
euro against the U.S. dollar could be expected to have a negative impact on our revenue and earnings growth as U.S. dollar revenue and earnings, if any, would be translated into euros at a reduced value. We cannot predict the impact of foreign
currency fluctuations, and foreign currency fluctuations in the future may adversely affect our financial condition, results of operations and cash flows. The ADSs are quoted in U.S. dollars on the Nasdaq Global Select Market and our ordinary shares
are trading in euros on Euronext Paris. Our financial statements are prepared in euros. Fluctuations in the exchange rate between euros and the U.S. dollar will affect, among other matters, the U.S. dollar value and the euro value of our ordinary
shares and ADSs.

We May Use Hazardous Chemicals And Biological Materials In Our Business. Any Claims Relating To Improper Handling, Storage Or
Disposal Of These Materials Could Be Time Consuming And Costly.

Our research and development processes may involve the controlled use of
hazardous materials, including chemicals and biological materials. We cannot eliminate the risk of accidental contamination or discharge and any resultant injury from these materials. For example, in production, the confinement of the electrospray
function and the use of the allergen in liquid form make it possible to prevent the allergens from contaminating the environment. However, we cannot assure you that in case of malfunction during the handling, storage or production process, allergen
would not be released into the atmosphere and sensitize the persons present in the environment. We may be sued for any injury or contamination that results from our use or the use by third parties of these materials, and our liability may exceed any
insurance coverage and our total assets. Federal, state, local or foreign laws and regulations govern the use, manufacture, storage, handling and disposal of these hazardous materials and specified waste products, as well as the discharge of
pollutants into the environment and human health and safety matters. Compliance with environmental laws and regulations may be expensive and may impair our research and development efforts. If we fail to comply with these requirements, we could
incur substantial costs, including civil or criminal fines and penalties, clean-up costs or capital expenditures for control equipment or operational changes necessary to achieve and maintain compliance. In addition, we cannot predict the impact on
our business of new or amended environmental laws or regulations or any changes in the way existing and future laws and regulations are interpreted and enforced.

Our Internal Computer Systems, Or Those Of Our Third-party Contractors Or Consultants, May Fail Or Suffer Security Breaches, Which Could Result In A
Material Disruption Of Our Product Development Programs.

Despite the implementation of security measures, our internal computer systems and those
of our third-party contractors and consultants are vulnerable to damage from computer viruses, unauthorized access, natural disasters, terrorism, war and telecommunication and electrical failures. While we do not believe that we have experienced any
such system failure, accident, or security breach to date, if such an event were to occur and cause interruptions in our operations, it could result in a material disruption of our programs. For example, the loss of clinical trial data for our
product candidates could result in delays in our regulatory approval efforts and significantly increase our costs to recover or reproduce the data. To the extent that any disruption or security breach results in a loss of or damage to



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our data or applications or other data or applications relating to our technology or product candidates, or inappropriate disclosure of confidential or proprietary information, we could incur
liabilities and the further development of our product candidates could be delayed.

We May Acquire Businesses Or Products, Or Form Strategic
Alliances, In The Future, And We May Not Realize The Benefits Of Such Acquisitions.

At this stage, our strategy does not involve plans to acquire
companies or technologies facilitating or enabling us to access to new medicines, new research projects, or new geographical areas, or enabling us to express synergies with our existing operations. However, if such acquisitions were to become
necessary in future, we may not be able to identify appropriate targets or make acquisitions under satisfactory conditions, in particular, satisfactory price conditions. In addition, we may unable to obtain the financing for these acquisitions under
favorable conditions, and could be led to finance these acquisitions using cash that could be allocated to other purposes in the context of existing operations. If we acquire businesses with promising markets or technologies, we may not be able to
realize the benefit of acquiring such businesses if we are unable to successfully integrate them with our existing operations and company culture. We may encounter numerous difficulties in developing, manufacturing and marketing any new products
resulting from a strategic alliance or acquisition that delay or prevent us from realizing their expected benefits or enhancing our business. We cannot assure you that, following any such acquisition, we will achieve the expected synergies to
justify the transaction, which could have a material adverse effect on our business, financial conditions, earnings and prospects.

Risks Related to
Ownership of Our Ordinary Shares and ADSs

The Market Price For The ADSs May Be Volatile Or May Decline Regardless Of Our Operating Performance.

The trading price of our ADSs and ordinary shares has fluctuated, and is likely to continue to fluctuate, substantially. The trading price of our
securities depends on a number of factors, including those described in this Risk Factors section, many of which are beyond our control and may not be related to our operating performance.

Our ADSs were sold in our initial public offering on Nasdaq in October 2014 at a price of $21.64 per share, and the price per ADS has ranged from as low as
$20.26 and as high as $44.76 during 2015. During this same period, our ordinary share prices have ranged from as low as 37.57 to as high as 83.48. The market price of our securities may fluctuate significantly in response to numerous
factors, many of which are beyond our control, including:



| |  |  | actual or anticipated fluctuations in our financial condition and operating results;
| | - |  | ------------------------------------------------------------------------------------



| |  |  | actual or anticipated changes in our growth rate relative to our competitors;
| | - |  | -----------------------------------------------------------------------------



| |  |  | competition from existing products or new products that may emerge;
| | - |  | -------------------------------------------------------------------



| |  |  | announcements by us, our partners or our competitors of significant acquisitions, strategic partnerships, joint ventures, collaborations, or capital commitments;
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | failure to meet or exceed financial estimates and projections of the investment community or that we provide to the public;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------



| |  |  | issuance of new or updated research or reports by securities analysts;
| | - |  | ----------------------------------------------------------------------



| |  |  | fluctuations in the valuation of companies perceived by investors to be comparable to us;
| | - |  | -----------------------------------------------------------------------------------------



| |  |  | price and volume fluctuations attributable to inconsistent trading volume levels of the ADSs and/or ordinary shares;
| | - |  | --------------------------------------------------------------------------------------------------------------------



| |  |  | additions or departures of key management or scientific personnel;
| | - |  | ------------------------------------------------------------------



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| |  |  | disputes or other developments related to proprietary rights, including patents, litigation matters, and our ability to obtain patent protection for our technologies;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | changes to coverage policies or reimbursement levels by commercial third-party payors and government payors and any announcements relating to coverage policies or reimbursement levels;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | announcement or expectation of additional debt or equity financing efforts;
| | - |  | ---------------------------------------------------------------------------



| |  |  | sales of our ordinary shares or ADSs by us, our insiders or our other shareholders; and
| | - |  | ---------------------------------------------------------------------------------------



| |  |  | general economic and market conditions.
| | - |  | ---------------------------------------

These and other market and industry factors may cause the market
price and demand for our securities to fluctuate substantially, regardless of our actual operating performance, which may limit or prevent investors from readily selling their ADSs or ordinary shares and may otherwise negatively affect the liquidity
of our ADSs and ordinary shares. In addition, the stock market in general, and biopharmaceutical companies in particular, have experienced extreme price and volume fluctuations that have often been unrelated or disproportionate to the operating
performance of these companies.

Share Ownership Is Concentrated In The Hands Of Our Principal Shareholders And Management, Who Will Continue To Be
Able To Exercise A Direct Or Indirect Controlling Influence On Us.

Our executive officers, directors, current 5% or greater shareholders and
affiliated entities, including Bpifrance Participations, entities affiliated with Baker Bros. Advisors LP and entities affiliated with FMR LLC, together beneficially own approximately 52% of our ordinary shares. As a result, these shareholders,
acting together, will have significant influence over all matters that require approval by our shareholders, including the election of directors and approval of significant corporate transactions. Corporate action might be taken even if other
shareholders oppose them. This concentration of ownership might also have the effect of delaying or preventing a change of control of our company that other shareholders may view as beneficial.

If Securities Or Industry Analysts Do Not Publish Research Or Publish Inaccurate Or Unfavorable Research About Our Business, The Price Of The ADSs And
Trading Volume Could Decline.

The trading market for our ADSs and ordinary shares depends in part on the research and reports that securities or
industry analysts publish about us or our business. If no or few securities or industry analysts cover our company, the trading price for our ADSs and ordinary shares would be negatively impacted. If one or more of the analysts who covers us
downgrades our ADSs or ordinary shares or publishes incorrect or unfavorable research about our business, the price of our ADSs and ordinary shares would likely decline. If one or more of these analysts ceases coverage of our company or fails to
publish reports on us regularly, or downgrades our ADSs or ordinary shares, demand for the our ADSs and ordinary shares could decrease, which could cause the price of our ADSs or ordinary shares or trading volume to decline.

We Do Not Currently Intend To Pay Dividends On Our Securities And, Consequently, Your Ability To Achieve A Return On Your Investment Will Depend On
Appreciation In The Price Of The ADSs. In Addition, French Law May Limit The Amount Of Dividends We Are Able To Distribute.

We have never
declared or paid any cash dividends on our ordinary shares and do not currently intend to do so for the foreseeable future. We currently intend to invest our future earnings, if any, to fund our growth. Therefore, you are not likely to receive any
dividends on your ADSs for the foreseeable future and the success of an investment in ADSs will depend upon any future appreciation in its value. Consequently, investors may need to sell all or part of their holdings of ADSs after price
appreciation, which may never occur, as the only way to realize any future gains on their investment. There is no guarantee that the ADSs will appreciate in value or even maintain the price at which our shareholders have purchased the ADSs.
Investors seeking cash dividends should not purchase the ADSs.



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Further, under French law, the determination of whether we have been sufficiently profitable to pay dividends is
made on the basis of our statutory financial statements prepared and presented in accordance with IFRS. In addition, payment of dividends may subject us to additional taxes under French law. Please see the section of this Annual Report on Form 20-F
titled Item 10.BMemorandum and Articles of Association for further details on the limitations on our ability to declare and pay dividends and the taxes that may become payable by us if we elect to pay a dividend. Therefore, we may
be more restricted in our ability to declare dividends than companies not based in France.

In addition, exchange rate fluctuations may affect the amount
of euros that we are able to distribute, and the amount in U.S. dollars that our shareholders receive upon the payment of cash dividends or other distributions we declare and pay in euros, if any. These factors could harm the value of the ADSs, and,
in turn, the U.S. dollar proceeds that holders receive from the sale of the ADSs.

Future Sales Of Ordinary Shares Or ADSs By Existing Shareholders
Could Depress The Market Price Of The ADSs.

As of December 31 2015, 24,205,129 ordinary shares were issued and outstanding. Sales of a
substantial number of shares of our ordinary shares or ADSs in the public market, or the perception that these sales might occur, could depress the market price of our securities and could impair our ability to raise capital through the sale of
additional equity securities. A substantial number of our shares are now generally freely tradable, subject, in the case of sales by our affiliates, to the volume limitations and other provisions of Rule 144 under the Securities Act. If holders of
these shares sell, or indicate an intent to sell, substantial amounts of our securities in the public market, the trading price of our securities could decline significantly.

In addition, we have filed a registration statement with the SEC to register the ordinary shares that may be issued under our equity incentive plans. The
ordinary shares subject to outstanding options under our equity incentive plans, ordinary shares reserved for future issuance under our equity incentive plans and ordinary shares subject to outstanding warrants will become eligible for sale in the
public market in the future, subject to certain legal and contractual limitations. Sales of a large number of the shares issued under these plans in the public market could have an adverse effect on the market price of our securities.

Our By-Laws And French Corporate Law Contain Provisions That May Delay Or Discourage A Takeover Attempt.

Provisions contained in our by-laws and the corporate laws of France, the country in which we are incorporated, could make it more difficult for a third-party
to acquire us, even if doing so might be beneficial to our shareholders. In addition, provisions of our by-laws impose various procedural and other requirements, which could make it more difficult for shareholders to effect certain corporate
actions. These provisions include the following:



| |  |  | under French law, a non-resident of France may have to file an administrative notice with French authorities in connection with a direct or indirect investment in us, as defined by administrative rulings; see the
section of this Annual Report on Form 20-F titled Item 10.BMemorandum and Articles of Association;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | a merger (i.e., in a French law context, a share for share exchange following which our company would be dissolved into the acquiring entity and our shareholders would become shareholders of the acquiring entity) of our
company into a company incorporated in the European Union would require the approval of our board of directors as well as a two-thirds majority of the votes held by the shareholders present, represented by proxy or voting by mail at the relevant
meeting;
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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| |  |  | a merger of our company into a company incorporated outside of the European Union would require 100% of our shareholders to approve it;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------



| |  |  | under French law, a cash merger is treated as a share purchase and would require the consent of each participating shareholder;
| | - |  | -------------------------------------------------------------------------------------------------------------------------------



| |  |  | our shareholders have granted and may grant in the future our board of directors broad authorizations to increase our share capital or to issue additional ordinary shares or other securities (for example, warrants) to
our shareholders, the public or qualified investors, including as a possible defense following the launching of a tender offer for our shares;
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | our shareholders have preferential subscription rights on a pro rata basis on the issuance by us of any additional securities for cash or a set-off of cash debts, which rights may only be waived by the
extraordinary general meeting (by a two-thirds majority vote) of our shareholders or on an individual basis by each shareholder;
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | our board of directors has the right to appoint directors to fill a vacancy created by the resignation or death of a director, subject to the approval by the shareholders of such appointment at the next
shareholders meeting, which prevents shareholders from having the sole right to fill vacancies on our board of directors;
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | our board of directors can only be convened by our chairman or our managing director, if any, or, when no board meeting has been held for more than two consecutive months, by directors representing at least one-third of
the total number of directors;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | our board of directors meetings can only be regularly held if at least half of the directors attend either physically or by way of videoconference or teleconference enabling the directors identification and
ensuring their effective participation in the boards decisions;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | our shares are nominative or bearer, if the legislation so permits, according to the shareholders choice. Shares issued are registered in individual accounts opened by us or any authorized intermediary, in the
name of each shareholder and kept according to the terms and conditions laid down by the legal and regulatory provisions;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | approval of at least a majority of the votes held by shareholders present, represented by a proxy, or voting by mail at the relevant ordinary shareholders general meeting is required to remove directors with or
without cause;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | advance notice is required for nominations to the board of directors or for proposing matters to be acted upon at a shareholders meeting, except that a vote to remove and replace a director can be proposed at any
shareholders meeting without notice;
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | our by-laws can be changed in accordance with applicable laws;
| | - |  | --------------------------------------------------------------



| |  |  | the crossing of certain thresholds has to be disclosed and can impose certain obligations; see the section of this Annual Report on Form 20-F titled Item 10.BMemorandum and Articles of Association;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | transfers of shares shall comply with applicable insider trading rules; and
| | - |  | ---------------------------------------------------------------------------



| |  |  | pursuant to French law, the sections of the by-laws relating to the number of directors and election and removal of a director from office may only be modified by a resolution adopted by 66 2/3% of the votes of our
shareholders present, represented by a proxy or voting by mail at the meeting.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

You May Not Be Able To Exercise Your Right To Vote The
Ordinary Shares Underlying Your ADSs.

Holders of ADSs may exercise voting rights with respect to the ordinary shares represented by the ADSs only
in accordance with the provisions of the deposit agreement. The deposit agreement provides that, upon receipt of notice of any meeting of holders of our ordinary shares, the depositary will fix a record date for the determination of ADS holders who
shall be entitled to give instructions for the exercise of voting rights. Upon timely receipt of



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notice from us, if we so request, the depositary shall distribute to the holders as of the record date (1) the notice of the meeting or solicitation of consent or proxy sent by us and
(2) a statement as to the manner in which instructions may be given by the holders.

You may instruct the depositary of your ADSs to vote the
ordinary shares underlying your ADSs. Otherwise, you will not be able to exercise your right to vote, unless you withdraw the ordinary shares underlying the ADSs you hold. However, you may not know about the meeting far enough in advance to withdraw
those ordinary shares. If we ask for your instructions, the depositary, upon timely notice from us, will notify you of the upcoming vote and arrange to deliver our voting materials to you. We cannot guarantee you that you will receive the voting
materials in time to ensure that you can instruct the depositary to vote your ordinary shares or to withdraw your ordinary shares so that you can vote them yourself. If the depositary does not receive timely voting instructions from you, it may give
a proxy to a person designated by us to vote the ordinary shares underlying your ADSs. In addition, the depositary and its agents are not responsible for failing to carry out voting instructions or for the manner of carrying out voting instructions.
This means that you may not be able to exercise your right to vote, and there may be nothing you can do if the ordinary shares underlying your ADSs are not voted as you requested.

Your Right As A Holder Of ADSs To Participate In Any Future Preferential Subscription Rights Or To Elect To Receive Dividends In Shares May Be Limited,
Which May Cause Dilution To Your Holdings.

According to French law, if we issue additional securities for cash, current shareholders will have
preferential subscription rights for these securities on a pro rata basis unless they waive those rights at an extraordinary meeting of our shareholders (by a two-thirds majority vote) or individually by each shareholder. However, the ADS holders in
the United States will not be entitled to exercise or sell such rights unless we register the rights and the securities to which the rights relate under the Securities Act or an exemption from the registration requirements is available. In addition,
the deposit agreement provides that the depositary will not make rights available to you unless the distribution to ADS holders of both the rights and any related securities are either registered under the Securities Act or exempted from
registration under the Securities Act. Further, if we offer holders of our ordinary shares the option to receive dividends in either cash or shares, under the deposit agreement the depositary may require satisfactory assurances from us that
extending the offer to holders of ADSs does not require registration of any securities under the Securities Act before making the option available to holders of ADSs. We are under no obligation to file a registration statement with respect to any
such rights or securities or to endeavor to cause such a registration statement to be declared effective. Moreover, we may not be able to establish an exemption from registration under the Securities Act. Accordingly, ADS holders may be unable to
participate in our rights offerings or to elect to receive dividends in shares and may experience dilution in their holdings. In addition, if the depositary is unable to sell rights that are not exercised or not distributed or if the sale is not
lawful or reasonably practicable, it will allow the rights to lapse, in which case you will receive no value for these rights.

You May Be Subject
To Limitations On The Transfer Of Your ADSs And The Withdrawal Of The Underlying Ordinary Shares.

Your ADSs, which may be evidenced by ADRs, are
transferable on the books of the depositary. However, the depositary may close its books at any time or from time to time when it deems expedient in connection with the performance of its duties. The depositary may refuse to deliver, transfer or
register transfers of your ADSs generally when our books or the books of the depositary are closed, or at any time if we or the depositary think it is advisable to do so because of any requirement of law, government or governmental body, or under
any provision of the deposit agreement, or for any other reason subject to your right to cancel your ADSs and withdraw the underlying ordinary shares. Temporary delays in the cancellation of your ADSs and withdrawal of the underlying ordinary shares
may arise because the depositary has closed its transfer books or we have closed our transfer books, the transfer of ordinary shares is blocked to permit voting at a shareholders meeting or we are paying a dividend on our ordinary shares. In
addition, you may not be able to cancel your ADSs and withdraw the underlying ordinary shares



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when you owe money for fees, taxes and similar charges and when it is necessary to prohibit withdrawals in order to comply with any laws or governmental regulations that apply to ADSs or to the
withdrawal of ordinary shares or other deposited securities.

As A Foreign Private Issuer, We Are Exempt From A Number Of Rules Under The U.S.
Securities Laws And Are Permitted To File Less Information With The SEC Than A U.S. Company. This May Limit The Information Available To Holders Of ADSs.

We are a foreign private issuer, as defined in the SECs rules and regulations and, consequently, we are not subject to all of the disclosure
requirements applicable to public companies organized within the United States. For example, we are exempt from certain rules under the Exchange Act that regulate disclosure obligations and procedural requirements related to the solicitation of
proxies, consents or authorizations applicable to a security registered under the Exchange Act, including the U.S. proxy rules under Section 14 of the Exchange Act. In addition, our officers and directors are exempt from the reporting and
short-swing profit recovery provisions of Section 16 of the Exchange Act and related rules with respect to their purchases and sales of our securities. Moreover, while we currently make annual and semi-annual filings with respect to
our listing on Euronext Paris and expect to file financial reports on an annual and semi-annual basis, we will not be required to file periodic reports and financial statements with the SEC as frequently or as promptly as U.S. domestic issuers and
will not be required to file quarterly reports on Form 10-Q or current reports on Form 8-K under the Exchange Act. Accordingly, there will be less publicly available information concerning our company than there would be if we were a U.S. domestic
issuer.

As A Foreign Private Issuer, We Are Permitted To Adopt Certain Home Country Practices In Relation To Corporate Governance Matters That
Differ Significantly From Nasdaq Corporate Governance Listing Standards. These Practices May Afford Less Protection To Shareholders Than They Would Enjoy If We Complied Fully With Corporate Governance Listing Standards.

As a foreign private issuer listed on the Nasdaq Global Select Market, we will be subject to corporate governance listing standards. However, rules permit a
foreign private issuer like us to follow the corporate governance practices of its home country. Certain corporate governance practices in France, which is our home country, may differ significantly from corporate governance listing standards. For
example, neither the corporate laws of France nor our by-laws require a majority of our directors to be independent and we could include non-independent directors as members of our compensation committee, and our independent directors would not
necessarily hold regularly scheduled meetings at which only independent directors are present. Currently, we intend to follow home country practices to the maximum extent possible. Therefore, our shareholders may be afforded less protection than
they otherwise would have under corporate governance listing standards applicable to U.S. domestic issuers.

We May Lose Our Foreign Private Issuer
Status In The Future, Which Could Result In Significant Additional Cost And Expense.

While we currently qualify as a foreign private issuer, the
determination of foreign private issuer status is made annually on the last business day of an issuers most recently completed second fiscal quarter and, accordingly, the next determination will be made with respect to us on June 30,
2016, which would require us to comply with all of the periodic disclosure and current reporting requirements of the Exchange Act applicable to U.S. domestic issuers as of January 1, 2017. We could lose our foreign private issuer status in the
future if we to fail to meet the requirements necessary to maintain our foreign private issuer status as of the relevant determination date. In order to maintain our current status as a foreign private issuer, either (a) a majority of our
ordinary shares or ADSs must be either directly or indirectly owned of record by non-residents of the United States or (b)(i) a majority of our executive officers or directors may not be U.S. citizens or residents, (ii) more than 50% of
our assets cannot be located in the United States and (iii) our business must not be administered principally inside the United States. If we lost this status, we would be required to comply with the Exchange Act reporting and other
requirements applicable to U.S. domestic issuers, which are more detailed and extensive than the requirements for foreign private issuers. As of September 30, 2015, approximately 61% of our outstanding ordinary shares were held by U.S.
residents.

The regulatory and compliance costs to us under U.S. securities laws as a U.S. domestic issuer may be significantly more than costs we
currently incur as a foreign private issuer. If we are not a foreign private issuer, we will be



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required to file periodic reports and registration statements on U.S. domestic issuer forms with the SEC, which are more detailed and extensive in certain respects than the forms available to a
foreign private issuer. We would be required under current SEC rules to prepare our financial statements in accordance with U.S. GAAP, rather than IFRS, in U.S. dollars rather than euros and modify certain of our policies to comply with corporate
governance practices associated with U.S. domestic issuers. Such conversion of our financial statements to U.S. GAAP will involve significant time and cost. In addition, we may lose our ability to rely upon exemptions from certain corporate
governance requirements on U.S. stock exchanges that are available to foreign private issuers such as the ones described above and exemptions from procedural requirements related to the solicitation of proxies.

U.S. Investors May Have Difficulty Enforcing Civil Liabilities Against Our Company And Directors And Senior Management And The Experts Named In This
Annual Report.

Certain members of our board of directors and senior management, and those of our subsidiary, are non-residents of the United
States, and all or a substantial portion of our assets and the assets of such persons are located outside the United States. As a result, it may not be possible to serve process on such persons or us in the United States or to enforce judgments
obtained in U.S. courts against them or us based on civil liability provisions of the securities laws of the United States. Additionally, it may be difficult to assert U.S. securities law claims in actions originally instituted outside of the United
States. Foreign courts may refuse to hear a U.S. securities law claim because foreign courts may not be the most appropriate forums in which to bring such a claim. Even if a foreign court agrees to hear a claim, it may determine that the law of the
jurisdiction in which the foreign court resides, and not U.S. law, is applicable to the claim. Further, if U.S. law is found to be applicable, the content of applicable U.S. law must be proved as a fact, which can be a time-consuming and costly
process, and certain matters of procedure would still be governed by the law of the jurisdiction in which the foreign court resides. In particular, there is some doubt as to whether French courts would recognize and enforce certain civil liabilities
under U.S. securities laws in original actions or judgments of U.S. courts based upon these civil liability provisions. In addition, awards of punitive damages in actions brought in the United States or elsewhere may be unenforceable in France. An
award for monetary damages under the U.S. securities laws would be considered punitive if it does not seek to compensate the claimant for loss or damage suffered but is intended to punish the defendant. The enforceability of any judgment in France
will depend on the particular facts of the case as well as the laws and treaties in effect at the time. The United States and France do not currently have a treaty providing for recognition and enforcement of judgments (other than arbitration
awards) in civil and commercial matters.

The Rights Of Shareholders In Companies Subject To French Corporate Law Differ In Material Respects From
The Rights Of Shareholders Of Corporations Incorporated In The United States.

We are a French company with limited liability. Our corporate
affairs are governed by our by-laws and by the laws governing companies incorporated in France. The rights of shareholders and the responsibilities of members of our board of directors are in many ways different from the rights and obligations of
shareholders in companies governed by the laws of U.S. jurisdictions. For example, in the performance of its duties, our board of directors is required by French law to consider the interests of our company, our shareholders, employees and other
stakeholders, rather than solely our shareholders and/or creditors. It is possible that some of these parties will have interests that are different from, or in addition to, your interests as a shareholder. See the sections of this Annual Report on
Form 20-F titled Item 10. BMemorandum and Articles of Association and Item 16.GCorporate Governance.

We May Be
At Risk Of Securities Class Action Litigation.

Historically, securities class action litigation has often been brought against a company
following a decline in the market price of its securities. This risk is especially relevant for us because biotechnology and biopharmaceutical companies have experienced significant share price volatility in recent years. If we were to be sued, it
could result in substantial costs and a diversion of managements attention and resources, which could harm our business.



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|Item 4. | Information on the Company.
|------- | ---------------------------



|A. | History And Development Of The Company
|-- | --------------------------------------

Our legal and commercial name is DBV Technologies S.A. We were
incorporated as a société par actions simplifiée (S.A.S.) under the laws of the French Republic on March 29, 2002 for a period of 99 years and subsequently converted on March 13, 2003 into a
société anonyme. We are registered at the Nanterre Commerce and Companies Register under the number 441 772 522. Our principal executive offices are located at 177-181 avenue Pierre Brossolette, 92120 Montrouge, France, and our
telephone number is +33 1 55 42 78 78. Our agent for service of process in the United States is CT Corporation System. We also maintain a website at www.dbv-technologies.com. The reference to our website is an inactive textual reference only and the
information contained in, or that can be accessed through, our website is not a part of this Annual Report on Form 20-F.

Our actual capital expenditures
for the years ended December 31, 2013, 2014 and 2015 amounted to 1.4 million, 1.1 million, and 5.3 million, respectively. These capital expenditures primarily consisted of the acquisition of laboratory equipment
and industrial tools, the refurbishment of our research and development laboratories, our relocation of our headquarters to Montrouge as well as cash contributions to our liquidity contract. We expect our capital expenditures to increase in absolute
terms in the near term as we continue to advance our research and development programs and grow our operations. We anticipate our capital expenditures in 2016 to be financed from the cash flows from operating activities and proceeds from our recent
July 2015 public offering. For the near future, these investments will mainly remain in France where our research and development facilities are currently located.



|B. | Business Overview
|-- | -----------------

We are a clinical-stage specialty biopharmaceutical company focused on changing the
field of immunotherapy by developing a novel technology platform called Viaskin. Our therapeutic approach is based on epicutaneous immunotherapy, or EPIT, our proprietary method of delivering biologically active compounds to the immune system
through intact skin using Viaskin. We have generated significant data demonstrating that Viaskins mechanism of action is novel and differentiated as it targets specific antigen-presenting immune cells in the skin, called Langerhans cells,
which capture the antigen and migrate to the lymph node in order to activate the immune system without allowing passage of the antigen into the bloodstream. We are advancing this unique technology to address areas of unmet medical need, including in
patients suffering from severe food allergies, for whom safety is paramount as the introduction of the offending allergen into their bloodstream can cause severe or life-threatening allergic reactions, such as anaphylactic shock.

Our proprietary platform is based on our epicutaneous Viaskin patch. We have designed and developed this technology internally, for which we have scalable
manufacturing capabilities. Viaskin is an electrostatic patch, which offers a convenient, self-administered, non-invasive immunotherapy to patients. Once applied on intact skin, Viaskin forms a condensation chamber, which hydrates the skin and
solubilizes the antigen allowing it to penetrate the epidermis, where it is captured by Langerhans cells. Based on numerous scientific publications and our own research, we believe this unique mechanism of action has a favorable safety profile and
that it generates a strong immune response that results in allergen desensitization. Our epicutaneous immunotherapy method allows us to address severe food allergies, as well as unmet medical needs in other immunotherapy indications.

According to an expert panel convened by the American Academy of Allergy Asthma and Immunology, or the AAAAI, epidemiological studies suggest that over half
of Americans are sensitive to at least one allergen. Allergy is considered a disease of the developed world as its increasing incidence is proportional to higher living standards. Based on a paper published by the AAAAI, approximately 3%
to 5% of Americans suffer from food allergies, with a number of recent studies suggesting that nearly 6 million or approximately 8% of children have some type of food allergy. Food allergies in particular can lead to extremely dangerous
reactions while significantly



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impairing daily quality of life. According to a paper published in the Immunology and Allergy Clinics of North America, food, mainly peanut, allergies, are responsible for 150 to 200 deaths and
about 200,000 emergency room visits every year in the United States. These patients often also experience skin discomfort, asthma symptoms, impaired lung function and gastrointestinal complications, such as sustained bloating, nausea, vomiting and
diarrhea. Food allergies can be particularly difficult for young children to manage, and due to their life-threatening nature, severe food allergies can often lead to psychological traumas and social anxiety. In some cases, these allergies can also
cause chronic diseases such as failure to thrive in children and an allergic inflammatory condition of the esophagus called eosinophilic esophagitis, or EoE.

We are committed to finding a safe, effective and patient-friendly therapy for food allergy patients, for whom there are no currently approved treatments.
Compared to other allergy treatment approaches, we believe the safety profile of our EPIT method carried-out via the Viaskin patch may offer significant therapeutic and ease-of-use advantages to these patient populations. EPIT can be utilized as an
allergy-specific immunotherapy commonly referred to as desensitization. Desensitization consists of repeated administration of small quantities of allergen to decrease allergen reactivity in patients. Currently studied desensitization methods
include subcutaneous, sublingual, and oral immunotherapy, which often require frequent or prolonged administration in highly specialized centers. In academic settings some successful cases exist, but large-scale pharmaceutical development in this
field has been limited due to both the safety concerns and the commercial viability of these desensitization approaches. These methods may be poorly designed for young children due to their safety profile or the inconvenient method of
administration. Most importantly, some of these approaches are also known for triggering severe adverse events during treatment, such as anaphylaxis, risking the patients life during administration. Further, some of these methods have been
also associated with an increased risk of adverse long-term treatment effects, such as EoE. As a self-administered treatment with a good safety profile, we believe Viaskin has positioned us as the company with the most advanced clinical program in
food allergies.

The following table summarizes our most advanced product candidates:



LOGO



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We are focused on becoming the leader in discovering, developing and commercializing food allergy products. Our
pipeline development strategy is based on leveraging Viaskins scientific profile while taking into consideration a combination of target market characteristics, which include allergen prevalence, persistence and severity. We select our target
product candidates with the aim to address allergies that have high unmet medical needs.

Our lead product candidate, Viaskin Peanut, has obtained fast
track designation and breakthrough therapy designation in children from the U.S. Food and Drug Administration, or FDA, which are designations intended to expedite or facilitate the process of reviewing new drugs and biological products that are
intended to treat a serious or life-threatening disease or condition and demonstrate the potential to address unmet medical needs for the disease or condition. The European Medicines Agencys, or EMA, Pediatric Committee has also adopted a
positive opinion with respect to our Pediatric Investigation Plan, or PIP, for Viaskin Peanut, which is a prerequisite for the filing of marketing authorization for any new medicinal product in Europe.

In September 2014, we announced positive topline results for our Viaskin Peanuts Efficacy and Safety, or VIPES, Phase IIb clinical trial of Viaskin
Peanut, which was followed by a full study report presented at the 2015 AAAAI Annual Meeting in Houston, Texas. Following results from our Phase IIb trial, we initiated the Peanut EPIT Efficacy and Safety Study, or PEPITES, a pivotal
Phase III trial, in December 2015. PEPITES is designed to evaluate the safety and efficacy of Viaskin Peanut in approximately 330 peanut allergic patients four to 11 years of age. Results from PEPITES are expected during the second half of 2017. In
October 2015, we announced topline results from the first year of OLFUS-VIPES, an open-label extension trial of VIPES, in which we observed that 12 additional months of therapy with Viaskin Peanut 250 μg increased the number of patients
benefiting from treatment to 70% in OLFUS-VIPES from 50% in VIPES, with 80% of children (ages six-11 at entry in VIPES) responding to therapy after 24 months.

We are developing our second product candidate, Viaskin Milk, for the treatment of cows milk protein allergy, or CMPA, in children two to 17 years of
age. In November 2014, we initiated a multi-center, double-blind, placebo-controlled, randomized Phase I/II trial to study the safety and efficacy of Viaskin Milk in approximately 176 patients with Immunoglobulin E, or IgE, mediated CMPA, which we
refer to as the Milk Efficacy and Safety, or MILES, trial. In June 2015, we announced the successful completion of Part A of the MILES study, or Phase I, and we launched Part B, or Phase II, in October 2015. Results from MILES are expected in the
second half of 2017.

In February 2015, we announced that our third food allergen product, Viaskin Egg, would seek to treat patients suffering from
hens egg allergy. Preclinical development for Viaskin Egg commenced in the first half of 2015.

We also use our Viaskin technology platform to
advance other development programs that have the potential to treat other immunological indications. In November 2015, we announced the enrollment of the first patient in the Study of efficacy and safety of the Viaskin Milk in
Milk-Induced Eosinophilic Esophagitis, or SMILEE, a Phase IIa investigator-sponsored clinical trial assessing the safety and efficacy of Viaskin Milk for the treatment of milk-induced EoE. Our other earlier stage product
development programs include a booster vaccine for pertussis, as well as potential treatments for Crohns disease and respiratory syncytial virus, none of which have resulted in a product candidate to date. We are also exploring earlier stage
opportunities in programs for the treatment of hemophilia A, celiac disease and type I diabetes.

We intend to commercialize our food allergy product
candidates by ourselves in the United States and certain European countries. In other geographies and indications outside food allergies, we will explore selective partnerships with parties who have relevant clinical and commercial expertise in
order to maximize shareholder value.



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Our Strategy

Our goal is to become the leading global biopharmaceutical company focused on discovering, developing, manufacturing and commercializing treatments for severe
allergies. Key elements of our strategy are:



| |  |  | Rapidly Develop and Seek Marketing Approval for Viaskin Peanut In December 2015, we initiated PEPITES, a pivotal Phase III trial in peanut allergic children ages four to 11, for which
completion is expected in the second half of 2017. We also intend to explore additional indications for Viaskin Peanut in other patient populations as part of our clinical development strategy. Prior to launching our Phase III trial, we announced in
September 2014 that VIPES, our Phase IIb trial of Viaskin Peanut, had met its primary endpoint; a year later, we reported results from the first year of the VIPES follow-up, the OLFUS-VIPES trial, in which we observed that 12 additional months of
therapy with Viaskin Peanut 250 μg increased the number of patients benefiting from treatment to 70% in OLFUS-VIPES from 50% in VIPES. In order to potentially expedite development of Viaskin Peanut, we have pursued and obtained both fast track
and breakthrough therapy designations from the FDA for Viaskin Peanut. Pending regulatory approval after the completion of the Phase III trial, we intend to seek marketing approval for Viaskin Peanut for the treatment of patients suffering from
peanut allergy.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Advance the Development of Our Viaskin Technology Platform into Other Areas of Unmet Medical Need in Food and Pediatric AllergiesWe are advancing the clinical development of Viaskin
Milk to address IgE mediated CMPA, which is frequently the first food allergy that appears in early childhood and affects approximately 2% to 3% of the population in developed countries. We initiated MILES in November 2014, and are expecting results
from this clinical trial in the second half of 2017. Preclinical development for Viaskin Egg is also underway, and began in the first half of 2015.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Become a Fully Integrated Biopharmaceutical Company Focused on the Commercialization of our Viaskin Food Allergy Product Candidates in the United States and Other Major MarketsWe are
utilizing our teams unique food allergy expertise and knowledge to rapidly advance clinical development and approval of our product candidates. In anticipation of commercial launch, we continue to enhance our manufacturing and commercial
production capabilities. Given the limited number and targeted nature of the prescribers in our target markets, we currently intend to launch and commercialize our food allergy product candidates with our own specialty sales force.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Maximize the Value of our Innovative Viaskin Technology Platform by Building a Broad Immunotherapy Product PipelineWe believe that our Viaskin technology platform, for which we have
worldwide commercialization rights, has the potential to support significant product opportunities beyond food allergies. We have commenced a Phase IIa trial of Viaskin Milk in patients suffering from milk-induced EoE, and we are also pursuing a
number of pre-clinical collaborations, which could enable us to broaden our product pipeline, including collaborations for the development of applications in the field of autoimmune diseases, as well as other therapeutic fields, such as vaccines. We
expect to selectively collaborate with leading pharmaceutical and biotechnology companies that have deep clinical expertise or extensive commercial infrastructure in other therapeutic areas of interest to us, in order to accelerate product candidate
development and maximize shareholder value.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Our Industry

Allergies are a Growing Global Health Problem

Allergy is considered a disease of the developed world as its increasing incidence is proportional to higher living standards. Epidemiological
studies suggest that over half of Americans are sensitive to at least one allergen. Environmental and lifestyle changes, urbanization, pollution, dietary changes, development of sanitation standards and decrease in chronic bacterial infections all
seem to be factors promoting the rapid increase in prevalence of allergies throughout the developed world.



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Background on Allergic Reaction

An allergic reaction is the bodys inappropriate immune response to a foreign substance, or an allergen. While, for most people, exposure to an allergen
is relatively harmless, for others, exposure to an allergen can provoke an allergic reaction of varying severity. An allergic reaction typically progresses in two stages.

In the first stage, the allergic immune response begins with allergen sensitization. The first time an allergen penetrates the body via the skin or the
mucosa, for example, the eyes, respiratory or digestive tracts, the immune system identifies the foreign element as dangerous and begins to produce specific antibodies against it. Antibodies are substances produced by the immune system that
recognize and destroy certain foreign elements to which the body is exposed. The immune system produces different types of antibodies targeted to specific allergens. For allergic people, this phenomenon is known as sensitization. In the second stage
of an allergic reaction, upon re-exposure to the allergen, the now sensitized immune system is ready to react. The antibody seeks to eliminate the allergen by triggering a collection of defense responses causing an allergic reaction. In various
types of allergies, including food allergies, the antibody IgE plays an essential role in the development of the allergic disease. IgE is known for binding to allergens and triggering the release of cellular substances that can cause inflammation,
thus triggering a cascade of allergic reactions. Allergic reactions range in severity and include hives, itching, swelling, shortness of breath, vomiting and cardiac arrhythmia. Reactions vary in duration, and allergy patients experience these
symptoms frequently unless treated properly. The most severe allergic reaction is anaphylaxis, which if not treated quickly by epinephrine injection, may progress to anaphylactic shock causing a rapid drop in blood pressure, loss of consciousness
and possibly death within a few minutes.

Current Challenges in the Treatment and Management of Allergy Patients

Symptomatic Allergy Treatments and their Limitations

For food allergies, there are no approved symptomatic or disease-modifying allergy treatments. By contrast, in the case of respiratory allergies, symptomatic
allergy treatments, such as antihistamines, bronchodilators and corticosteroids, are among the most widely used treatments in the world. Non-sedating antihistamines such as histamine H1 inhibitors are the mainstay treatment for respiratory
allergies. Allegra and Zyrtec are two leading antihistamines treatments. Another method of symptomatic treatment consists of blocking production of IgE, the allergy antibody.

However, all these treatments treat the symptoms of allergies, and are not intended to treat the underlying causes of the allergic reaction itself. As a
result, when the treatment course is finished, the patient is once again susceptible to the original allergen and typically will suffer a similar allergic reaction if re-exposed to the original allergen.

Emergency Treatments and Their Limitations

Allergies can lead to severe reactions that require the use of treatments that have been designated to treat allergic symptoms during emergency situations,
such as anaphylactic reactions. Epinephrine, also known as adrenaline, is the most widely used treatment for anaphylactic reactions, and it is usually administered by injection. The most commonly used type of epinephrine injections are Epipen
Auto-Injectors, or Epipens, which are indicated for the emergency treatment of severe allergic reactions including sudden anaphylaxis or for patients with a history of anaphylactic reactions to known triggers. Patients at risk of anaphylaxis are
instructed by their physicians on how to recognize the symptoms of anaphylaxis and on when to use the Epipens. Epinephrine injections help relieve the symptoms of anaphylaxis, but they do not treat or help address the underlying causes of the
allergic disease.



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Desensitization Allergy Treatments and their Limitations

Another therapeutic approach for the treatment of allergies is through a type of immunotherapy, called desensitization therapy. Desensitization therapy
consists of repeated administration of increasing quantities of allergen to decrease reactivity in allergic patients. It is currently recognized by the World Health Organization, or WHO, as the preferred therapeutic treatment for allergies.
Desensitization therapy is widely used in respiratory allergies and allergies to insect bites. This treatment is traditionally performed by subcutaneous injections of increasing doses of the allergen at regular intervals in the hospital and under
the supervision of a physician. Less invasive methods of administration, including oral drops and sublingual, or under the tongue, tablets, have also been developed to permit a simplified treatment that can be administered at home. For patients
allergic to dust mites or pollen, desensitization by injection is the standard method of therapy.

However, while desensitization has shown potential in
less severe allergies such as house dust mites or pollen, for food allergies and other severe allergies such as to peanut or milk proteins, existing desensitization therapies are not routinely used due to the high risk of anaphylactic shock,
especially in young children. Subcutaneous methods of desensitization have been shown to cause significant side effects. Clinical trials have been performed using oral immunotherapy, which consists in feeding small amounts of the offending allergen
to the patient. While some of these trials have shown a desensitization effect, these therapies have been shown to trigger a high proportion of severe systemic reactions in certain cases, and we believe that this has limited their pharmaceutical
development in the past.

Moreover, with current desensitization techniques, the achieved immunity may be short-lived; many patients are not able to
tolerate the allergen permanently. A therapeutic approach that promotes tolerization to the allergen would be of particular clinical and societal benefit.

Food and Pediatric Allergies are a High Unmet Clinical Need

According to a paper published by the AAAAI, approximately 3% to 5% of Americans suffer from food allergies, with a number of recent studies suggesting that
nearly 6 million or approximately 8% of children have some type of food allergy. Food allergies, in particular, can lead to extremely dangerous reactions and often lead to anaphylactic shock. According to a paper published in the Immunology and
Allergy Clinics of North America, food, mainly peanut allergies, are responsible for 150 to 200 deaths every year in the United States. The U.S. Centers for Disease Control and Prevention reported that food allergies result in more than 300,000
ambulatory-care visits per year among children under the age of 18. Every three minutes a food allergy reaction sends someone to the emergency department, which is about 200,000 emergency department visits per year, and every six minutes the
reaction is one of anaphylaxis. A recent U.S. study indicates an increase of 350% in the number of hospitalizations of children below age 18 for diagnosis of a food allergy for the period from 2004 to 2006 as compared to the period from 1998 to
2000. According to a paper published in the Immunology and Allergy Clinics of North America, the majority of fatal anaphylactic reactions in patients are caused by peanut allergy.

While anaphylactic shock is the most severe allergic reaction to food, patients also suffer from a poor quality of life. Symptoms tend to disappear within
hours of exposure but, in some cases, can continue to affect patients for several days. Reactions can include, but are not limited to, skin discomfort, hay fever-like symptoms, impaired lung function and gastrointestinal complications, such as
sustained bloating, nausea, vomiting and diarrhea. In some cases, food allergies can lead to chronic diseases such as failure to thrive in children and EoE.

Recent studies suggest that patients with food allergies are especially at risk for experiencing significant disruption to their daily life. Food allergies
are not only a physical disability; they are often associated with psychological traumas, including fear of eating, antisocial behavior and anxiety. In the case of pediatric patients, food allergies also have a significant impact on their
caretakers. A recent study suggests that the quality of life in children with peanut allergy is more impaired than in children with insulin-dependent diabetes mellitus.



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There Are No Approved Treatments Suitable for Food Allergies

Strict avoidance of food allergens and early recognition and management of allergic reactions to food are important measures to prevent serious health
consequences. However, strict avoidance of food allergen is very difficult to achieve, especially for children. Some foods can contain hidden traces of allergens, labeling is often deceptive and contamination of allergen-free foods occurs regularly.
For example, according to a paper published in the Journal of Allergy and Clinical Immunology, or JACI, it is estimated that accidental exposure to peanuts in peanut allergic patients occurs once every three to five years and the annual incidence of
accidental ingestion is between 15% and 40%.

Treating Allergies Early in Life Can Modify the Disease, However, No Treatments Currently
Exist for Young Children

Recent scientific studies suggest that treating allergies early in life could prevent disease progression or the development
of polyallergies. A study of children desensitized to pollen and monitored for five years demonstrated that treating pollen allergy reduced the development of asthma. This early intervention, when the immune system is not mature, is referred to as
the window of opportunity. Thus, research suggests that addressing allergies during this time in life is likely of critical clinical importance.

However, current techniques are poorly adapted to treating young allergy patients:



| |  |  | Injections are not well-tolerated and must be performed under strict medical supervision; and
| | - |  | ---------------------------------------------------------------------------------------------



| |  |  | Sublingual methods, developed to encourage home administration, are generally not suitable for young children who are unable to keep the product in contact with the oral mucosa long enough for its use to be effective (a
minimum of two minutes before being swallowed). In addition, sublingual administration in children is sometimes poorly tolerated. In the case of tablets, the risk of aspiration also exists.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Due to these safety concerns, existing techniques are limited to children who are at least six years old. Given these limitations, it has been impossible to
commercialize large-scale desensitization efforts for young children, even if medical research suggests that early allergy treatment during the window of opportunity is the best prophylactic and therapeutic management of the disease.

There is an Urgent Need for a Safe, Effective and Convenient Treatment for Food Allergy Patients

For all these reasons, food allergy patients, especially young children, their caregivers and their clinicians have long sought a safe, effective and
convenient treatment. It is well understood that desensitization would be a desirable therapeutic approach as long as the procedure limits serious side effects, is convenient to apply and is effective. In particular, a therapeutic approach that
promotes long-term therapeutic effect would be most desirable. To date, no such technique has been developed and approved.

Our Solution: Epicutaneous
Immunotherapy (EPIT) Using Our Viaskin Technology Platform

Over the last decade, we have developed an innovative immunotherapy technology platform,
with the potential for sustained therapeutic effect, by delivering biologically active compounds, including antigens, via intact skin. This technology platform, which we call Viaskin, is based on an electrostatic patch, which administers the antigen
directly on the skin. Once administered, the antigen is concentrated in the superficial layers of the skin, where it activates the immune system by specifically targeting the Langerhans cells, without passage of the antigen into the bloodstream. We
refer to this novel approach to immunotherapy as epicutaneous immunotherapy, or EPIT. Based on our trials and research, we believe that EPIT has the potential to provide all of the intended benefits of a disease-modifying treatment in allergy, while
avoiding severe or life-threatening allergic reactions.



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ViaskinThe First Epicutaneous Immunotherapy

Three important characteristics of our Viaskin technology platform contribute to its potential safety and efficacy:



| |  |  | The Viaskin patch contains the antigen in dry form, which allows it to retain its chemical properties optimally.
| | - |  | ----------------------------------------------------------------------------------------------------------------



| |  |  | The Viaskin patch creates a condensation chamber with the skin. This increases the hydration of the skin and solubilizes the antigen, which allows it to penetrate the upper layers of the epidermis. Here, the antigen is
close to the most tolerogenic antigen-presenting cells in the body, Langerhans cells.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | The Viaskin patch delivers the antigen directly to the Langerhans cells, but not into the bloodstream, thereby avoiding systemic allergic reactions. This mechanism of action leads to the potential safety of Viaskin,
which has been observed in multiple clinical trials in over 400 subjects.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Below is a diagram reflecting the primary components of the
Viaskin patch:



LOGO

The key elements of the Viaskin patch mechanism of action are the following:



|     |  |                                                                                                                     
|---- |  | --------------------------------------------------------------------------------------------------------------------
|LOGO |  | Containing a dry layer of allergen in its center, the patch is positioned on intact skin, without prior preparation.



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|     |  |                                                                                                                                                                                                                                                       
|---- |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|LOGO |  | The condensation chamber formed between the skin and the center of the patch creates hyperhydration of the skin and an accumulation of water.                                                                                                         
|     | 
|LOGO |  | The accumulation of water solubilizes the allergen. Due to this condensation chamber, the epidermis becomes more permeable allowing passage of the allergen into the epidermis.                                                                       
|     | 
|LOGO |  | Once in the epidermis, the allergen is captured by a population of highly specialized cells: Langerhans cells. These cells can take the protein at the surface of the skin, process it and present its epitopes to the lymphocytes in
the lymph nodes.

ViaskinTargeting the Unique Immunological Properties of Epicutaneous Langerhans Cells

Viaskins effect on the immune system has been the subject of numerous scientific analyses and publications, which have been featured in major medical
journals and allergology conferences. These epigenetic and mechanistic studies have helped us characterize the Viaskins novel mechanism of action.

Our mechanism of action is unique and differentiated as it targets specific epidermal dendritic cells, called Langerhans cells, which capture the antigen and
migrate to the lymph node in order to activate the immune system without passage of the antigen into the bloodstream. After the antigen has been presented to the T cells in the lymph node, it activates the Tregs, the main factor in the
down-regulation of Th2 response, while barely influencing the Th1 expression, thus rebalancing the immune response.

Th2 cells are thought to play a role
in allergic responses because allergies are known to be Th2 dominant conditions. An elevated Th2 response is ultimately responsible for the production of IgE, which can cause inflammation and trigger allergic reactions. Conversely, a normal, or
non-allergic, immune response to an allergen is usually characterized by a well-balanced Th1/Th2 response.

We believe that EPIT can rebalance the immune
reaction by decreasing, or down-regulating, the Th2 response to allergens, keeping Th1 and Th2 balanced and thus promoting long-term tolerance toward future allergen exposure. The first documentation of this mechanistic feature of our Viaskin patch
in humans was presented at the 2016 AAAAI Annual Meeting in Los Angeles, California.



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ViaskinCompelling Clinical Benefits

We believe that our innovative approach to EPIT has the potential to offer compelling clinical benefits to patients suffering from severe allergies:



| |  |  | Our Epicutaneous Approach Targeting Langerhans Cells has the Potential to Induce an Immune Reaction with a Highly Tolerogenic Profile: By delivering the allergen directly to the lymph node through the Langerhans cells,
EPIT activates specific Tregs that can down-regulate the Th2-oriented reaction to the allergen. The absence of passage of allergens into the bloodstream explains the potential safety while the activity in the lymph node explains the potential
efficacy of EPIT.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Our Viaskin Patch Enables Continuous Antigen Exposure which has the Potential to Promote Sustained Tolerization: The Viaskin patch contains allergen protein in its original antigenic state, which allows the skin to be
continuously exposed to the allergen over time. We believe this promotes a long-term, sustained therapeutic effect.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | The Safety Profile and Ease of Use of Viaskin May Allow the Treatment of Allergies Very Early in Life: Because of its ease of use and well-demonstrated safety profile, we believe our Viaskin technology will allow for
the treatment of all patients suffering from severe allergies, including very young children, without risk of anaphylaxis. As a result, we believe our approach will permit early treatment of allergies in children during the window of
opportunity which could prevent disease progression in these patients or the development of polyallergies.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

We believe that the
Viaskins ability to induce epicutaneous immunological responses can also potentially be applied to other therapeutic areas, such as vaccination and treatment of inflammatory and autoimmune diseases.

Our Product Candidates

Our lead product candidate,
Viaskin Peanut, is being developed for the treatment of peanut allergies in children, adolescents and adults. In December 2015, we initiated PEPITES, a randomized, placebo-controlled pivotal Phase III trial in children four to 11 years of age with
Viaskin Peanut 250 μg. Results from PEPITES are expected in the second half of 2017. In September 2014, we announced topline results from our VIPES trial, a multi-center, double-blind, placebo-controlled, randomized Phase IIb clinical trial of
Viaskin Peanut, which was followed by a full study report presented at the 2015 AAAAI Annual Meeting in Houston, Texas. The trial met its primary endpoint at the highest explored dose (Viaskin Peanut 250 μg), achieving statistical significance
(p<0.01) in the percentage of treatment responders versus placebo. Our VIPES trial is the largest clinical trial in peanut allergy desensitization ever completed. Following the completion of VIPES, 171 patients enrolled in a two-year open label
follow-up study, OLFUS-VIPES, which reported its first-year results in October 2015, followed by a complete study report in March 2016 during the AAAAI meeting in Los Angeles, California. Findings from the first twelve months of OLFUS-VIPES suggest
that the treatment effect of Viaskin Peanut increases over time in children. In OLFUS-VIPES, we observed that 12 additional months of therapy with Viaskin Peanut 250 μg increased the number of patients benefiting from treatment to 70% in
OLFUS-VIPES from 50% in VIPES, with 80% of children (ages six-11 at entry in VIPES) responding to therapy after 24 months. Viaskin Peanut has also been explored independently in two large academic trials, CoFAR6 and ARACHILD. CoFAR6, a Consortium of
Food Allergy Research, or CoFAR, study sponsored by the National Institute of Allergy and Infectious Diseases, or NIAID, met its primary endpoint in cohorts treated with both Viaskin Peanut 100 μg (P=0.005) and Viaskin Peanut 250 μg
(P=0.003). The 52-week results from CoFAR6 were presented at the 2016 AAAAI meeting. In June 2013, the Assistance PubliqueHôpitaux de Paris, or AP-HP, presented data from its ARACHILD pilot trial of Viaskin Peanut. In June 2012, we
presented proof-of-concept data at the European Academy of Allergy and Clinical Immunology, or EAACI, Congress from a multi-center, double-blind, placebo-controlled, randomized Phase Ib clinical trial of Viaskin Peanut.

Our second product candidate, Viaskin Milk, is being developed for children (including infants) for the treatment of two indications: IgE mediated CMPA and
milk-induced EoE. Proof-of-concept data from a pilot clinical trial of Viaskin Milk was published in JACI in 2010. In November 2014, we initiated our 194 subject, multi-center, double-blind, placebo-controlled, randomized Phase I/II safety and
efficacy MILES clinical trial of repeated doses of Viaskin Milk in patients with IgE mediated CMPA, and completion of its Part A (Phase I) occurred in June 2015. Part B (Phase II) is currently enrolling patients in the U.S. and Canada. Results from
MILES are expected in the second half of 2017.



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In November 2015, Dr. Jonathan Spergel from the Childrens Hospital of Philadelphia, or CHOP, initiated
an investigator-sponsored multi-center, double-blind, placebo-controlled, randomized trial to study safety and efficacy of Viaskin Milk in pediatric patient populations with milk-induced EoE. The trial is ongoing, and is expected to enroll
approximately 20 patients four to 11 years of age.

We are also developing a third product candidate, Viaskin Egg, for the treatment of hens egg
allergy. In the first half of 2015, we began pre-clinical work for this product candidate with the goal of initiating a clinical program if these studies are successful.

Viaskin Peanut

Background

Peanut allergy is one of the
most common food allergies, and can cause severe, potentially fatal, allergic reactions, including anaphylaxis. Strict avoidance of peanut is essential, as even trace amounts of peanut can cause severe allergic reactions. According to recent
studies, food allergies, mainly peanut, are responsible for 150 to 200 deaths every year in the United States and about 200,000 emergency room visits. While anaphylactic shock is the most severe allergic reaction to peanuts, many patients also
suffer from a poor quality of life. Peanut allergies have lifelong effects and are often associated with psychological traumas, including fear of eating, antisocial behavior and anxiety.

Allergy to peanuts appears to be on the rise and its prevalence has increased in the past 10 years. According to an article published in JACI, a recent survey
in the United States indicated that approximately 1% of the U.S. population, or more than three million people, are allergic to peanuts and/or nuts. Two recent studies conducted in the United States and the United Kingdom show that peanut allergy
has doubled in five years in children below age five. A study funded by Food Allergy Research and Education, Inc., or FARE, indicates that the number of children in the United States with peanut allergy more than tripled between 1997 and 2008.
Although some patients outgrow their peanut allergies, research indicates that only about 20% of individuals with peanut allergy outgrow it during a lifetime.

Phase III Clinical Trial  PEPITES

In December 2015, we initiated a pivotal Phase III trial designed to evaluate the safety and efficacy of Viaskin Peanut 250 μg in children four to 11
years of age suffering from peanut allergy. PEPITES is an international, randomized 2:1, double-blind, placebo-controlled Phase III study, in which pediatric peanut allergic patients will be treated with Viaskin Peanut 250 μg or placebo for 12
months. During the trial, patients peanut allergy will be assessed using a double-blind, placebo controlled food challenge, or DBPCFC, at baseline. The DBPCFC will be halted once the subject exhibits an objective symptom, as described on a
pre-specified scale, thus establishing a subjects peanut reactivity level, which is labeled as the patients eliciting dose, or ED. As in VIPES, subjects will receive a daily application of Viaskin Peanut or placebo over a 12-month
treatment period. Each patch will be applied for 24 hours on the back of children.

Both the FDA and the EMA have agreed to a combined primary endpoint
based on a responder analysis after 12 months of treatment. For patients with a baseline peanut protein ED equal to or less than 10 mg, a responder will be defined as a patient with a peanut protein ED equal to or greater than 300 mg of peanut
protein after 12 months of treatment. For subjects with a baseline ED greater than 10 mg, a responder will be defined as a patient with a peanut protein eliciting dose equal to or greater than 1,000 mg of peanut protein after 12 months of treatment.
Secondary endpoints will include the change from baseline of mean and median cumulative reactive dose of peanut protein, or CRD, which is used to establish the total quantity of peanut protein consumed during the DBPCFC. Serological markers will
also be measured at baseline, three, six and 12 months in order to characterize the immunological changes in subjects.



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PEPITES is expected to enroll approximately 330 patients in about 30 centers across North America (Canada and the
U.S.), Europe, and Australia. Enrollment completion for PEPITES is expected in the third quarter of 2016. Based on this timeline, we expect study results to be available in the second half of 2017.

Phase IIb Clinical TrialsVIPES and OLFUS-VIPES

VIPES (Viaskin Peanuts Efficacy and Safety)

In August 2012, we initiated VIPES, a double-blind, placebo-controlled, multi-center Phase IIb clinical trial of Viaskin Peanut in 221 peanut allergic subjects
with a well-documented medical history of systemic reactions after ingestion of peanut. Subjects completed their last food challenge visits after twelve months of treatment.

The VIPES trial was a multi-center clinical trial conducted at 22 sites in North America and Europe. In the trial, 221 peanut-allergic subjects were
randomized into four treatment arms to evaluate three doses of Viaskin Peanut, specifically 50 μg, 100 μg and 250 μg peanut protein, compared to placebo. The trial was prospectively organized across the three dose levels with two
patient strata, composed of three different patient age groups: children (113 subjects, ages six-11) for the first stratum and adolescents (73 subjects, ages 12-17) plus adults (35 subjects, ages 18-55) for the other stratum. Each patient underwent
two DBPCFCs: one at initial screening and one at 12 months after initiation of treatment. The challenge was halted once the subject exhibited an objective symptom, thus establishing a subjects ED. Patients in VIPES received a daily application
of the Viaskin Peanut patch over a 12-month treatment period. Each patch was applied for 24 hours, either on the upper arm for adults (age 18-55) and adolescents (age 12-17) or on the back of children (age six-11).

Baseline peanut tolerance levels were established by measuring the peanut eliciting dose at which patients began to exhibit allergy symptoms, thus
establishing the reactive baseline dose. The median baseline reactive dose in VIPES was 30 mg for children and 100 mg for adolescents and adults. The distribution of patients baseline reactive dose is summarized in the graph below.



LOGO

The primary efficacy endpoint in the trial was the percentage of treatment responders for each active treatment compared to
placebo. Trial responders were defined as patients who, after 12 months of treatment with Viaskin Peanut and using a DBPCFC, started to react at a dose of peanut protein equal to or greater than 1,000 mg, or at least a 10-fold increase in the
eliciting dose of peanut protein compared to baseline. As a secondary efficacy endpoint, CRD was also used to establish the total quantity of peanut protein that began triggering patient reactions at month 12 versus placebo. Serological markers were
also measured as additional secondary endpoints at baseline, three, six and 12 months in order to characterize the immunological changes in subjects. In terms of peanut consumption and immunological changes, a consistent dose effect was observed.



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The principal coordinating investigator for VIPES in North America is Dr. Hugh Sampson, M.D., Chief of the
Division of Allergy & Immunology in the Department of Pediatrics, Director of the Jaffe Food Allergy Institute, and Dean of Translational Biomedical Science at The Mount Sinai Medical Center in New York, United States. Dr. Sampson
joined us in June 2015 and was appointed as our Chief Scientific Officer in November 2015.

The principal coordinating investigator for VIPES in Europe is
Christophe Dupont, M.D., Ph.D., Head of the Pediatric-Gastroenterology Ambulatory Department at the Necker Hospital, or AP-HP. Dr. Dupont is a member of the European Society for Pediatric Gastroenterology, Hepatology and Nutrition and of the
Committee of Nutrition of the French Pediatric Society. Dr. Dupont is also the Chairman of our Scientific Advisory Board.

Results
of VIPES Trial

In September 2014, we announced topline results for the VIPES trial, which was followed by a full study report at the 2015 AAAAI Annual
Meeting in Houston, Texas, during an oral presentation by Dr. Sampson titled, Epicutaneous Immunotherapy (EPIT) is effective and safe to treat Peanut Allergy: a multi-national, double-blind placebo-controlled randomized, phase IIb
trial. We discussed additional post-hoc analyses during a webcasted company event following the AAAAI meeting.

The primary efficacy endpoint was
met with Viaskin 250 μg, with 50.0% responders vs 25.0% with placebo, p=0.0108 [Figure 1]. Moreover, children in the Viaskin 250 μg arm (six-11 years) exhibited 53.6% responders vs 19.4% for placebo, p=0.0076 [Figure 2]. In children, the
mean CRD showed a Viaskin Peanut dose-dependent response, with a change from baseline of +61 mg, +471 mg, +570 mg and +1121 mg for the placebo, 50 μg, 100 μg, and 250 μg arms, respectively [Figure 3]. Childrens immunological
responses were deemed to be robust. In the Viaskin 250 μg arm, peanut-specific IgE exhibited a median increase 3 50 kUA/L at 3 months and decreased back to baseline at 12 months; median
peanut-specific IgG4 at 12 months increased in a dose-dependent fashion: 1.3, 5.5-, 7.2- and 19.1-fold for each dose arm, respectively [Figure 4].

We are
conducting additional analyses on the adolescents and adults age stratum. Due to a high placebo response rate, we believe these results need to be investigated further before determining our Viaskin Peanut development path in these patient
populations [Figure 5]. We intend to refine our development strategy for both peanut allergic adolescents and adults in the next 12 months.

Patient
compliance with daily Viaskin Peanut application was above 97%. The safety profile was confirmed across all active arms with no serious treatment-related adverse events reported or use of epinephrine related to treatment. Three separate Data Safety
Monitoring Board, or DSMB, meetings concluded that VIPES did not have any safety concerns. In the trial, there were 20 SAEs, but none related to study drug. Of the 20 SAEs in VIPES, 14 were anaphylaxes during the DBPCFC, three were moderate
anaphylaxes after accidental consumption of peanut containing foods outside of clinical trial site, one was a reaction to fish consumption, one respiratory distress case and one psychiatric case. The trial drop-out rate was 6.4%, or 14 patients,
which was below the 15% rate initially anticipated. Two of the 14 drop-outs were related to the study drug due to dermatitis, one was due to uncontrolled asthma not related to treatment and the remaining 11 patients were drop-outs due to
non-compliance, lost to follow-up or consent withdrawals. Furthermore, local cutaneous reactions, mostly mild and moderate, were observed in the majority of the active groups.



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The following figures summarize these results.

Figure 1: Summary of VIPES Responders

LOGO

Figure 2: Summary of VIPES Responders: Children

LOGO



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Figure 3: Summary of CRD Changes from Baseline in Children

LOGO

Figure 4: Summary of Immunological Responses in Children

LOGO

Figure 5: Summary of VIPES Responders: Adolescents and Adults

LOGO



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OLFUS-VIPES (Open-Label Follow-Up Study)

In September 2013, we initiated an open-label follow-up Phase IIb clinical trial called OLFUS-VIPES to assess the long-term efficacy and safety of Viaskin
Peanut in subjects with peanut allergy. OLFUS-VIPES is an extension trial for subjects having completed the VIPES double-blind, placebo-controlled clinical trial, during which all subjects are under active treatment with Viaskin Peanut 250 μg.
OLFUS-VIPES includes 171 subjects at 21 sites in North America and Europe, representing 83% of the patients who completed 12 months of therapy in the VIPES trial. The objective of this trial is to assess the efficacy and safety of Viaskin Peanut
after up to 36 months of epicutaneous immunotherapy in peanut allergic subjects, as well as sustained unresponsiveness of subjects to peanut protein after cessation of treatment.

Results

In October 2015, we announced
topline results for OLFUS-VIPES, which show that the treatment effect with Viaskin Peanut seems to increase over time in children. Additional results were also presented by Dr. Sampson during the 2016 AAAAI meeting in Los Angeles, California.
In the topline results for OLFUS-VIPES, we observed that 12 additional months of therapy with Viaskin Peanut 250 μg increased the number of patients benefiting from treatment to 70% in OLFUS from 50% in VIPES. No drug-related epinephrine use
or SAEs due to Viaskin Peanut were reported. The studys median compliance rate, which was maintained at 96%, was also consistent with previously reported results from VIPES.

Moreover, the response rate in children (ages six-11 at entry in VIPES) treated with the 250 μg dose for 24 months was observed to increase to 80% from
57% at OLFUS baseline; the average CRD for the this treatment group was 1,883 mg (1,440 mg median) of peanut protein compared to 84 mg (44 mg median) at baseline during VIPES entry [Figure 6]. Serological markers for this treatment group showed the
strengthening of the immunological changes initially observed in VIPES. After 24 months, a median 40% decrease from the VIPES baseline value in peanut-specific IgE was observed, while the high median levels in immunoglobulin G4m, or IgG4, were
maintained at an 800% increase from the VIPES baseline [Figure 7].

Children who received the placebo for one year in VIPES and received Viaskin Peanut
for 12 months in OLFUS showed a 53.6% response rate compared to 17.2% at the OLFUS-VIPES baseline, which was consistent with previous findings from VIPES [Figure 8].

After 12 additional months of treatment with Viaskin Peanut, no additional significant clinical response was observed relative to the OLFUS baseline in the
adolescents and adults treatment groups. Response rates consistent with the results observed in VIPES were shown in treatment-naïve adolescents and adults who received 12 months of therapy during OLFUS.

The following figures summarize these results.

Figure 6:
Summary of Responders in OLFUS-VIPES - Children Treated for 24 Months with Viaskin 250 μg



LOGO

Figure 7: OLFUS-VIPES Serological Evolution in Children Treated for 24 Months with Viaskin 250 μg



LOGO



Figure 8: Summary of Responders in OLFUS-VIPES
- Children Treated with Viaskin Peanut for 12 Months



LOGO



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Phase Ib Clinical Trial

In July 2010, we initiated our first clinical trial of Viaskin Peanut in the United States, which was a Phase Ib trial to evaluate the safety and tolerability
of repeated epicutaneous administration of Viaskin Peanut in patients allergic to peanuts. Results from this trial were published in February 2016 in JACI. In the trial, which was conducted at five leading centers in the United States, 100 subjects
(initially adults, followed by adolescents and then children) allergic to peanuts, including 70 with a non-severe allergy and 30 with a severe allergy, were randomized and treated for two weeks with 20 μg to 500 μg of Viaskin Peanut or
with placebo. Subjects with a history of severe anaphylactic reactions could be enrolled only after assessment of the safety of Viaskin Peanut in subjects with historical non-severe anaphylaxis. The primary endpoint of this clinical trial was
safety, with the primary safety parameters of adverse events, physical examinations, vital signs, lab values, allergic reactions, any skin reactions, local or distant, echo-cardiogram, and Peak Expiratory Flow and spirometry (FEV1). Secondary
endpoints included the proportion of subjects that experience systemic reactions such as urticaria, asthma and acute dyspnea, change in blood pressure, and digestive symptoms such as vomiting and diarrhea associated with Viaskin Peanut treatment
versus placebo, the proportion of subjects requiring treatment for systemic reactions related to Viaskin Peanut treatment or placebo, and overall adherence to the clinical trial treatment.

In the overall population, the dose of 500 μg of Viaskin Peanut in adults and adolescents, and the dose of 250 μg of Viaskin Peanut in children,
were each shown to be well-tolerated maximum doses regardless of the administration plan. Importantly, an excellent treatment compliance rate greater than 96% was observed and the intermediate results suggested satisfactory usage safety of Viaskin
Peanut in patients allergic to peanuts. The interim report was communicated to the FDA on December 15, 2011, and we released the complete results of this clinical trial at the EAACI Congress in June 2012.

Academic Trials

The lack of cure and
approved treatments for food allergies has encouraged researchers and physicians to conduct several observational and mechanistic studies to further their understanding of these diseases. In the United States, for example, the NIAID of the United
States National Institutes of Health has substantially increased its support for food allergy research since 2003, including the establishment of CoFAR in 2005.

As such, we have been approached by certain academic and research institutions interested in exploring Viaskin and EPITs mechanism of action and their
impact on patients. In particular, both the AP-HP in France and CoFAR in the United States have initiated clinical trials to assess Viaskin Peanuts efficacy: ARACHILD and CoFAR6, respectively. While not a sponsor of these trials, we have and
will provide the doses of Viaskin Peanut needed to complete both of these trials.

CoFAR6 (Consortium for Food
Allergy Research 6)

In October 2013, CoFAR launched a multi-center, randomized, double-blind, placebo-controlled trial to
evaluate Viaskin Peanut in children and adults allergic to peanuts. This trial is sponsored and funded by the NIAID and coordinated by Stacie M. Jones, MD, Professor of Pediatrics, University of Arkansas for Medical Sciences, Arkansas
Childrens Hospital, Little Rock, Arkansas. The trial is being conducted in five hospitals in the United States and includes 75 patients; 54 children four to 11 years of age and 21 adolescents and adults 12 to 25 years of age. In CoFAR6,
subjects were randomized 1:1:1 to two doses of Viaskin Peanut (100 μg and 250 μg) or placebo. The primary outcome measure was the percent of patients desensitized to peanut protein during the peanut protein oral food challenge, or OFC,
at week 52. Responders were characterized as patients who successfully passed a 5044 mg OFC or who successfully consumed a dose ten times greater as compared to baseline.

The 52-week CoFAR6 results were highlighted during two oral presentations at the 2016 AAAAI Annual Meeting in Los Angeles, California. Findings from this
study were consistent with clinical data trends previously observed in



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VIPES. In the CoFAR6 trial, Viaskin Peanut was observed to have a favorable safety and tolerability profile across treatment groups, with no SAEs or epinephrine use related to treatment observed.
Treatment adherence was high (97.1%), dropouts were low (8%), and no withdrawals occurred in the 250 μg treatment group. Cohorts treated with both Viaskin Peanut 100 μg (P=0.005), and Viaskin Peanut 250 μg (P=0.003) met the primary
efficacy endpoint in all populations. The treatment response was enhanced in children four to 11 years of age, and also, with Viaskin Peanut 250 μg compared to Viaskin Peanut 100 μg. Based on additional analysis presented separately by
us, we observed a greater response in children treated with the 250 μg dose (P=0.001).

CoFAR6 also explored mechanistic features of Viaskin Peanut.
Dr. Cecilia Berin, Associate Professor Pediatrics, Mount Sinai Hospital in New York, New York presented early findings from CoFAR6 at the 2016 AAAAI meeting, which supported Viaskin Peanuts mechanistic features that have been observed at
the preclinical level. Viaskin Peanut at the 250 μg dose showed a trend of decreased Th2 cell frequency without any increased trends in the Th1 response. In animal models, we have observed that Viaskins unique mechanism of action could
rebalance the immune reaction by down-regulating the Th2 response to allergens while keeping Th1 responses balanced.

ARACHILD

The ARACHILD trial is a pilot trial conducted in France by the AP-HP. It is a DBPCFC trial to investigate the efficacy and safety of Viaskin Peanut in peanut
allergic patients recruited from six centers. In the trial, 54 patients (35 children (age five to 11) and 19 adolescents (age 12 to 18)), were randomized into two treatment arms to evaluate a single dose of Viaskin Peanut, specifically
100 μg of peanut protein, compared to placebo. Patients in the placebo arm were crossed over at six months to Viaskin Peanut without unblinding the trial. Each patient underwent DBPCFCs at months six, 12 and 18 after initiation of
treatment. After the initial double-blind six-month treatment period, all patients went through an open-label period of 30 months. The primary endpoint of the trial was the proportion of patients who achieved at least a 10-fold increase in initial
reactive dose or CRD greater than 1,000 mg of peanut protein (about four peanuts). The secondary endpoints included significant immunological changes.

In
June 2013, AP-HP reported the results from the initial six-month double-blind placebo-controlled phase of the trial and for the first 12 months of the open-label follow-up phase. In the active group (28 subjects), six-, 12- and 18-month data showed
7.4%, 20% and 40% of subjects, respectively, consuming at least 10 times more peanut protein than tolerated at the beginning of the trial (versus 7.7% in the placebo arm before the crossover to Viaskin Peanut at month six, then 13% and 19%
respectively after the crossover). Net trends of a specific sub-analysis of 19 adolescents (age 12 to 17) showed that despite a positive serological response of IgE, no adolescents qualified as responders at six, 12 and 18 months. In an analysis of
35 children (age five to 11), we observed not only a positive serological response of IgE, but also that an immunological response is characteristic of an acquisition of tolerance leading to a continuous and progressive number of responders. For the
children subgroup, six-, 12- and 18- month data showed 12.5%, 33.3% and 66.7% of subjects, respectively, consuming at least 10 times more peanut protein than at the beginning of the trial (versus 10.5% in the placebo arm before the crossover to
Viaskin Peanut at month six, then 16.7% and 23.5%, respectively, after the crossover). Viaskin Peanut also showed significant immunological changes (secondary efficacy endpoints) in the overall population, with clear-cut results in children. In
treated children, peanut-specific IgE were increased by more than two-fold at 6-month, before decreasing and approaching toward initial levels at 18-month, while peanut-specific IgG4 (immunoglobulin G4) increased by more than eight-fold over
18-month of treatment.

Additional analyses of these data also suggest a linear relationship between body surface and response rate as well as onset of
response. This analysis supports the belief that the 100 μg dose in Viaskin Peanut used in Arachild was potentially too low to generate a significant clinical outcome in patients with a higher body surface. In addition, these data also suggest
that levels of the antibody IGg4 are potentially a good predictor of future patient response.



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Pre-Clinical Studies

Prior to commencing our clinical trials of Viaskin Peanut, we completed a series of customary proof-of-concept and IND-enabling pre-clinical studies. These
included in vitropharmacokinetic/absorption studies, in vivopharmacology studies in a mouse model of peanut allergy, and toxicology studies, as well as ISO 10993-compliant biocompatibility studies for the device component.

Viaskin Milk

Background

CMPA is frequently the first
allergy that appears during early childhood. CMPA is often missed in the primary care setting and can be a significant cause of infant distress when left undiagnosed. Symptoms can include gastrointestinal problems such as vomiting and diarrhea, skin
rash, angioedema or rapid swelling of the skin, and anaphylaxis. The only option available for CMPA management is the avoidance of cows milk, which can lead to issues of dietary imbalance, failure to thrive and poor quality of life.

In addition, cows milk allergy is believed to be involved in a majority of cases of EoE in children and it is estimated that EoE impacts one in every
2,000 children. EoE is a recently recognized allergic inflammatory disease, characterized by swelling of the esophagus. Typical symptoms include vomiting, abdominal pain, regurgitation, dysphagia and, in young children and infants, feeding
difficulties and failure to thrive. Because the diverse and non-specific symptoms, EoE can be diagnosed only by esophageal biopsy. In addition to presenting symptoms, acute and chronic complications that may arise if EoE remains untreated include
food impaction, esophageal stricture, narrow-caliber esophagus and esophageal perforation. EoE is considered to be a chronic condition with no currently approved treatments.

CMPA is the most common food allergy in infants and young children, affecting 2% to 3% of the general population. In approximately 80% of CMPA cases, the
allergy to cows milk disappears after age 16. However, according to an expert panel convened by the AAAAI, approximately 35% of children with severe CMPA subsequently develop other food allergies or allergic respiratory diseases, such as
asthma.

MILES (MILk Efficacy and Safety)

In November 2014, we initiated our MILES trial, a multi-center, double-blind, placebo-controlled, randomized Phase I/II trial to study the safety and efficacy
of Viaskin Milk in pediatric patient populations (age two to 17) suffering from IgE mediated CMPA. We have an open IND for this trial. This trial is being conducted in select U.S. and Canadian clinical centers. Up to 194 subjects (18 subjects in
Part A and 176 subjects in Part B) will be randomized for treatment at approximately 18 sites.

In June 2015, we announced results for Part A of MILES,
which is equivalent to Phase I, which evaluated the safety of repeated daily applications of three escalating dose-levels of Viaskin Milk (150 μg, 300 μg and 500 μg cows milk protein) versus placebo during three weeks. The
DSMB for the study recommended that the study continue and expressed no safety concerns after evaluating the Part A safety data of subjects treated with the three doses of Viaskin® Milk.

Enrollment for Part B of the trial, which is equivalent to Phase II, was launched in October 2015, and it is expected to be completed in the third quarter of
2016, with study results expected in the second half of 2017. Part B is designed to evaluate the safety and efficacy of three doses of Viaskin Milk (150 μg, 300 μg, 500 μg) compared to placebo for 12 months. The primary efficacy
endpoint will be the percentage of subjects who are treatment responders after 12 months, defined as subjects who meet at least one of the following criteria: (1) a10-fold or greater increase in CRD of cows milk proteins at month 12 of
the food challenge as compared to baseline value in addition to reaching tolerance to at least 144 mg of cows milk protein (approximately 4.5 mL of milk) or (2) a CRD of cows milk proteins greater than or equal to 1,444 mg
(approximately 45 mL of milk) at month 12 of the food challenge. Secondary efficacy endpoints include, among others, the percentage of subjects who are treatment



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responders at month 24, the mean and median CRD of cows milk proteins at months 12 and 24 as well as the change in CRD from baseline, the change from baseline in the severity of symptoms
elicited during the food challenge from baseline to months 12 and 24, and the change from baseline in quality of life assessments at months 12 and 24.

SMILEE (Study of efficacy and safety of the Viaskin MILk in Milk-Induced Eosinophilic Esophagitis)

SMILEE is a double-blind, placebo-controlled, randomized 3:1 trial designed to evaluate the safety and efficacy of Viaskin® Milk 500 μg for treating milk-induced EoE in children ages four to 11. The trial is being conducted by Dr. Jonathan Spergel at CHOP pursuant to an investigator-sponsored IND
application that was accepted by the FDA in July 2015. Although we are providing assistance in the form of funding and trial supplies, this trial is being conducted by CHOP and supervised by Dr. Spergel.

Subjects with a documented medical history of EoE after ingestion of milk who currently adhere to a strict milk-free diet are being considered for
participation in the trial. Approximately 20 subjects, 15 in the active treatment group and five in the placebo group, will be randomized and treated for nine months while remaining on a milk-free diet. The subjects will then continue their assigned
treatment during a milk reintroduction period (1 week to 2 months), for a total of up to 11 months of treatment. The primary efficacy endpoint will evaluate the maximum esophageal eosinophil count in the active treatment group compared to placebo at
the end of treatment. Secondary efficacy endpoints will include the change in symptoms score at the end of treatment compared to baseline and mean esophageal eosinophil count at the end of treatment. SMILEE began enrolling patients in November 2015.

Pilot Clinical Trial

Dr. Christophe Dupont and the AP-HP conducted a double-blind, placebo-controlled pilot clinical trial of EPIT in 2005 in children (age three months to 15
years) with high levels of specific IgE related to cows milk protein who were unable to consume more than 10 mL of cows milk. A publication discussing this trials results was published in JACI in 2010. In the trial, at the end of a
three-month treatment, the mean cumulative tolerated dose increment was 12-fold in the active group versus 8% in the placebo group.

At the start of the
clinical trial, out of the 19 patients included, some patients could not tolerate the equivalent of one drop of milk without having severe reactions. However, after three or six months of treatment, almost half of the Viaskin Milk treatment group
was able to ingest milk in large quantities. In contrast, no patients treated during the first three months with a placebo (patch without active substance) showed meaningful improvement. These same non-responder patients were then treated with
Viaskin Milk and after three or six months of treatment, 80% of them experienced an improvement in their tolerance of milk. There were no serious or unexpected adverse events in the trial nor premature withdrawal from the clinical trial. Although
larger studies are needed to confirm the statistical efficacy, we believe the results of the pilot clinical trial provide proof-of-concept for specific immunotherapy via the epicutaneous route for this indication.

Pre-Clinical Studies

Prior to commencing
our clinical trial of Viaskin Milk, we completed a series of customary proof-of-concept and IND-enabling pre-clinical studies. These included in vitro pharmacology studies in a murine model of allergies, general safety studies in a
milk-sensitized animal model, genetic and other toxicology studies with the milk protein extract, and local tolerance studies, as well as biocompatibility studies of the device component.



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Viaskin Egg

Background

Hens egg allergy is the
second most common food allergy in children. A 2011 study conducted in Australia estimated that up to 8.9% of infants react to raw egg. Several global studies suggest that egg allergy affects 1.5% to 3% of young children globally. However, most
children seem to outgrow egg allergy before adolescence. A recent publication estimated that approximately 50% of children with egg allergy will become tolerant by six years of age, although resolution was highly correlated to lower egg-specific IgE
levels and the absence of systemic reactions beyond topical sensitivity.

Egg-allergic reactions are mostly cutaneous in nature, including skin rashes and
hives, and typically occur within 30 minutes of egg contact or ingestion. Gastrointestinal problems, such as vomiting, and respiratory complications, such as nasal congestion, are also common, but anaphylaxis is not often reported. Food allergy
experts believe that about one-third of eczema patients react to food triggers, which can sometimes cause the eczema to worsen. The most common food allergen associated with eczema is egg.

Development Program for Viaskin Egg

We
are developing Viaskin Egg as a treatment that we believe can reduce the clinical manifestations of hens egg allergy. Studies also suggest that the treatment of egg allergy in young children may have a significant impact on preventing the
occurrence and development of eczema.

We recently began pre-clinical work for this product candidate and plan to initiate a clinical program if these
studies are successful.

Other Potential Viaskin Technology Applications

We believe that our broadly applicable technology platform, know-how and deep understanding of EPIT positions us well to develop product candidates in areas of
unmet medical need in immunotherapy. We currently expect to selectively conduct product development programs outside of our core food allergy expertise, and will often seek to collaborate with companies or agencies that are experts in a particular
field. To date, we have signed several collaboration agreements to broaden the number of indications we are pursuing with our Viaskin technology platform, while also developing other potential product candidates independently. These programs and
collaboration agreements are in the early proof-of-concept phase, and we do not expect to provide regular updates unless and until we elect to move one of them forward in a meaningful way. These preclinical assets include the following:



| |  |  | With the University of Geneva and Bionet Asia, we are developing a booster vaccine against pertussis, for which a first clinical trial is planned to start in 2016. In June 2015, scientific data demonstrating the
potential application of the Viaskin technology to boost protective immunity against Bordetella pertussis (whooping cough) was published in Vaccine.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | With the Icahn School of Medicine at Mount Sinai, we are investigating the efficacy and mechanism of epicutaneous tolerance utilizing our Viaskin technology for the treatment of Crohns disease. In December 2015,
preclinical data supporting Viaskins application in Crohns was presented at Crohns & Colitis Foundation of America Advances in Inflammatory Bowel Diseases, or AIBD, in Orlando, Florida.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | With the French Institute for Agricultural Research, or INRA, we are developing a new vaccine strategy for respiratory syncytial virus, or RSV, in infants. This project seeks to offer a pre-clinical proof of concept for
an innovative pediatric vaccine against RSV. This project is funded by the French National Research Agency, or ANR. In November 2015, we presented preclinical data on the use of Viaskin for vaccination against respiratory RSV at the RSV Vaccines for
the World 2015, or RSVVW, meeting in La Jolla, California.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | With the Institut National de la Santé Et de la Recherche Médicale, or INSERM, we are developing a novel therapeutic strategy for hemophilia A with inhibitors. Data from this preclinical trial was
presented during an oral presentation at the 2016 AAAAI meeting in Los Angeles, California.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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In addition, we are continuing to explore other cellular mechanisms modulated by EPIT, such as biomarkers, in
collaboration with Mount Sinai Hospital in the United States, the Centre dImmunologie de Marseille-Luminy, or CIML, in France and Commissariat à lÉnergie Atomique et aux Énergies Alternatives, or CEA, in France. We
believe that with improved knowledge about the evolution of immunological biomarkers and epigenetic modulation, we may be able to determine the level of patient response earlier during treatment, ensure follow-up and measure tolerance maintained
once treatment is completed.

Our First Marketing Experience: Diallertest MilkA Ready-to-Use Patch Test For Detecting CMPA in Young Children

In 2004, we introduced to the French market Diallertest Milk, the first ready-to-use patch test for detecting CMPA in young children. Diallertest Milk
is sold exclusively in France through a distribution partner. To date, sales of Diallertest Milk have been moderate, totaling approximately 25,000 kits per year on average over the past three years. During the second half of 2015, we discontinued
our commercial partnership with respect to the product and ceased selling Diallertest Milk.

In June 2009, we received a letter from the Agence
Française de Sécurité Sanitaire des Produits de Santé (French Agency for the Safety of Health Products), informing us that, in its view, Diallertest Milk, although previously marketed as a medical device in France, met
the criteria for a drug product and accordingly would be required to complete a Phase III marketing authorization study in accordance with the regulations in France applicable to the marketing of drug products. However, in light of the safety
profile and perceived clinical utility of this product, the agency did not require that we discontinue the marketing and sale of Diallertest Milk and instead indicated that they would review with us our progress towards completing a Phase III trial
at a later date. As of the date of this Annual Report on Form 20-F we have not yet initiated this Phase III clinical trial, as we continue to evaluate the commercial rationale for doing so. We are also evaluating potential marketing and/or
distribution relationships to market this product in Europe and in other major markets.

There can be no assurance that the French regulatory authorities
will continue to permit us to market and sell Diallertest Milk prior to the completion of a Phase III clinical trial for this product. We may also elect to discontinue the marketing and sale of this product on our own.

Manufacturing and Supply

Our
Proprietary Viaskin Technology

We have engineered a proprietary manufacturing technology for Viaskin patch, which is designed to comply with the
most stringent pharmaceutical production standards, including those promulgated by the FDA, in order to enable Viaskin to deliver proteins via intact skin. This novel pharmaceutical process, which was fully developed by us, uses an electrospray to
spray homogeneous, thin, dry protein layers onto the Viaskin patch.



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|     |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                              
|---- |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|LOGO |  | This process sprays a liquid solution of electrically charged proteins onto the patchs backing, which is then turned into a dry solid charged particle, which remains stuck onto the patchs backing. It deposits very small
and precise quantities of the active substance, devoid of adjuvants. The patch can then be stored at room temperature, providing a long shelf life. We believe this patented technology is highly scalable and complies with cGMP requirements.

The principles of the Viaskin electrospray technology are the following:



|     |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|---- |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|LOGO |  | When a liquid flows at a constant speed from a capillary and is subjected to a high voltage electric field (20,000 volts).
 With our electrospray machine, we can transform these electrically charged liquid
droplets into dry solid charged particles, and then drive them along the electric field lines onto the patchs backing. 
When the electric field lines are directed toward the grounded Viaskin patch, they force the dry particles to go directly to and only onto the
patch.

We have engineered the Viaskin patch with an electrically conductive backing in order to use an electrospray in its assembly.
This conductive backing is placed under the machines cone at a specified distance; the patch is also grounded so that the electric field lines can be directed onto its surface. The dry particles from the electrospray follow these field lines
and settle on the patchs backing due to the attraction and conductivity produced by the electrostatic forces on the ground. Due to this process, the dry protein layers on the patch are homogenous and no loss of substance occurs during the
spray. The electrostatic attraction between the particles and the medium keeps these particles attached on the patch.

With Viaskin manufacturing
technology, we believe we can achieve:



| |  |  | a homogeneous layer of protein on the Viaskin patch;
| | - |  | ----------------------------------------------------



| |  |  | a specific mass of active substance per Viaskin patch;
| | - |  | ------------------------------------------------------



| |  |  | an adjustable active substance dosage and size;
| | - |  | -----------------------------------------------



| |  |  | instant drying of the active substance;
| | - |  | ---------------------------------------



| |  |  | a high solubility of the active substance; and
| | - |  | ----------------------------------------------



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| |  |  | the possibility of spraying on the Viaskin patch both biological and chemical substances.
| | - |  | -----------------------------------------------------------------------------------------

Viaskin is a Highly Scalable Manufacturing Technology

Over the past five years, we have tailored our electrospray technology to conduct further clinical development of our Viaskin technology and for its subsequent
commercialization.

We currently rely on a contract manufacturer, Sanofi, to manufacture the active pharmaceutical ingredients used in our Viaskin product
candidates, such as peanut protein extract. Our manufacturing machine technology then uses an electrospray to deposit the active pharmaceutical ingredient onto the Viaskin patch. For our pre-clinical testing, we used two different prototypes. We
then developed a third-generation machine in 2009 to manufacture patches for our clinical trials. For the Phase I and II of Viaskin Peanut and Viaskin Milk clinical trials, our electrospray machine, GEN3.1, was able to produce 15,000 patches per
batch, which was sufficient for our clinical needs. Overall, on a yearly basis, GEN3.1s throughput is approximately 750,000 patches.

We developed a
new version of this tool, GEN3.2, in 2014. This new generation manufacturing tool allows us to produce larger batch sizes of around 60,000 patches, which are compatible with our later-stage clinical development needs. Overall, on a yearly basis,
GEN3.2s throughput is expected to be approximately 2,250,000 patches.

We believe that a commercial-scale version of our electrospray manufacturing
tool, GEN4.0, will be completed in the second half of 2016 and efforts to increase our production capacity are currently ongoing. We anticipate that this tool will allow us to produce commercial batch sizes of around 500,000 patches, compatible with
initial expected market demand. Overall, on a yearly basis, GEN4.0s throughput is expected to reach approximately 20 to 30 million patches.



|     |  |                                                                                                                                
|---- |  | -------------------------------------------------------------------------------------------------------------------------------
|LOGO |  | GEN3.1 (2009) 18 nozzles
Used for Phase I and Phase II trials Batch size: 15,000
patches More than 200,000 produced since 2009 
|     | 
|LOGO |  | GEN3.2 (2014) 54 nozzles
Used for Phase III trials Batch size: 60,000 patches
Improved electrospray process, forerunner of GEN4



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|     |  |                                                                                                                                      
|---- |  | -------------------------------------------------------------------------------------------------------------------------------------
|LOGO |  | GEN4 (expected 2H 2016) Assembly ongoing
Up to 300 nozzles Commercial products Used for
commercialization Batch size: 500,000 patches

We believe our proprietary Viaskin manufacturing technology creates high barriers to entry to our line of business,
particularly in the engineering and manufacturing of our Viaskin product candidates. We design, develop and build our manufacturing tools, and contract third-party manufacturers to operate it. We are in the process of selecting third-party
manufacturers to manage our manufacturing process after the approval and during the commercialization of our Viaskin product candidates.

Intellectual
Property

Our patent portfolio includes pending patent applications and issued patents in the United States and in foreign countries. These patents and
applications generally fall into four broad categories:



| |  |  | patents and patent applications we co-own with AP-HP and the Université de Paris-Descartes relating to the Viaskin electrostatic patch and its use, many of which may expire as early as 2022;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | patents and patent applications which we own relating to our electrospray method of manufacturing the Viaskin electrostatic patch, which may expire as early as 2028;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | patents and patent applications we co-own with AP-HP and the Université de Paris-Descartes relating to the treatment of peanut allergies using our Viaskin patch technology, which may expire as early as 2027; and
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | a variety of other patent applications that we own or co-own relating, for example, to prophylactic uses of the Viaskin patch technology and to treatment of other indications using the Viaskin patch technology.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

The term of a U.S. patent may be eligible for patent term extension under the Hatch-Waxman Act to account for at least some of the time the
drug or device is under development and regulatory review after the patent is granted. With regard to a drug or device for which FDA approval is the first permitted marketing of the active ingredient, the Hatch-Waxman Act allows for extension of the
term of one U.S. patent. The extended patent term cannot exceed the shorter of five years beyond the non-extended expiration of the patent or 14 years from the date of the FDA approval of the drug or device. Some foreign jurisdictions have analogous
patent term extension provisions that allow for extension of the term of a patent that covers a device approved by the applicable foreign regulatory agency. In the future, if and when our Viaskin electrostatic patch receives FDA approval, we expect
to apply for a patent term extension on the patent that we believe will provide the best exclusivity position if extended.

Co-Ownership Agreement

AP-HP and Université de Paris-Descartes

In January 2009, we entered into an assignment, development and co-ownership agreement with AP-HP and Université Paris-Descartes, or UPD, by which we
agreed to terms of co-ownership with AP-HP and UPD of certain U.S. and foreign patents and patent applications, referred to herein as the shared patents. We, and any licensees or



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sublicensees that we designate, have the exclusive right to commercial uses of the shared patents. AP-HP and UPD agreed to use the shared patents only for internal research purposes and not to
license the shared patents to any third party. Upon commercialization of any product covered by the shared patents, which we expect would include our Viaskin product candidates, we will be obligated to pay AP-HP and UPD a percentage of net sales as
a royalty. This royalty is in the low single digits and varies depending on the particular patent used in the product. Additionally, if we license any of the shared patents to a third party and a licensee commercializes products covered by such
shared patents, we will be obligated to pay AP-HP and UPD a percentage in the low single digits of the money that we receive from our licensee.

If we do
not sell any of our product candidates covered by the shared patents within 30 months from the date we first market such product candidates, AP-HP may, upon six months notice and subject to certain exceptions, convert our exclusive right to
the commercial use of the shared patents to a non-exclusive right.

Any party may terminate the license in the event of another partys substantial
breach which remains uncured after six months of receiving written notice of such breach. The agreement will also terminate in the event we cease operations or are subject to a dissolution or bankruptcy proceedings.

Absent early termination, the agreement will automatically terminate upon the expiration of the last shared patent. In the event the agreement is terminated,
we would no longer have the exclusive right to commercial use of the shared patents, though we would retain our shared ownership rights. In addition, our ownership stake in certain jointly made improvements covered by the shared patents would
survive termination of the agreement. The longest lived patent rights licensed to us under the agreement are currently expected to expire in 2028.

Competition

The biotechnology and pharmaceutical
industries are highly competitive and subject to significant and rapid technological change as researchers learn more about diseases and develop new technologies and treatments. Significant competitive factors in our industry include product
efficacy and safety: quality and breadth of an organizations technology; skill of an organizations employees and its ability to recruit and retain key employees; timing and scope of regulatory approvals; government reimbursement rates
for, and the average selling price of, products; the availability of raw materials and qualified manufacturing capacity; manufacturing costs; intellectual property and patent rights and their protection; and sales and marketing capabilities.

We cannot assure you that any of our products that we successfully develop will be clinically superior or scientifically preferable to products developed or
introduced by our competitors.

Our competitors may also succeed in obtaining FDA or other regulatory approvals for their product candidates more rapidly
than we are able to do, which could place us at a significant competitive disadvantage or deny us marketing exclusivity rights. Market acceptance of our product candidates will depend on a number of factors, including: (1) potential advantages
over existing or alternative therapies or tests; (2) the actual or perceived safety of similar classes of products; (3) the effectiveness of sales, marketing, and distribution capabilities; and (4) the scope of any approval provided
by the FDA or foreign regulatory authorities.

Although we believe our product candidates possess attractive attributes, we cannot assure you that our
product candidates will achieve regulatory or market acceptance, or that we will be able to compete effectively in the biopharmaceutical drug markets. If our product candidates fail to gain regulatory approvals and acceptance in their intended
markets, we may not generate meaningful revenues or achieve profitability.

There are numerous competitors on the market for the therapeutic treatment of
allergies. Numerous structures, pharmaceutical laboratories, biotechnology companies, institutions, universities and other research entities are



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actively involved in the discovery, research, development and marketing of therapeutic responses to treat allergies. Many of our competitors have greater resources and experience in terms of
clinical development, management, manufacturing, marketing and research than us.

In the case of food allergies, we are aware of several academic studies
that are currently being conducted in major centers and hospitals worldwide. These studies are evaluating sublingual, subcutaneous, intranasal or other forms of desensitization or products using synthetic allergens, denatured allergens or
combinations of medicines or methods, or medicines using traditional methods such as Chinese herbs. We are not aware of any pharmaceutical development in conjunction with these academic efforts at this time.

We expect studies combining other methods of immunotherapy, such as OIT, with anti-IgE treatments will be conducted. These types of co-administrations may
significantly improve the safety of specific immunotherapies administered orally or subcutaneously, and may become significant competitors with our products.

To our knowledge, other pharmaceutical and biotechnology companies are also seeking to develop food allergy treatments, although many are in the discovery or
preclinical stages. For example, Aimmune Therapeutics, Inc., formerly known as Allergen Research Corporation, is currently enrolling patients in a Phase III trial to evaluate the safety and efficacy of its OIT product candidate, AR101, in peanut
allergic patients. To our knowledge, the company uses a formulation of peanut flour for oral administration intended for oral desensitization to peanut. We are also aware of other companies that are working on recombinant peanut proteins capable of
initiating an attenuated immune response of using subcutaneous administration. We are also aware that Sanofi has entered into licensing agreements of discovery platforms in selected food allergies, notably with Immune Design Corp. and Selecta
Biosciences Inc. and may pose a competitive risk to our products in the future.

Government Regulation

Government authorities in the United States at the federal, state and local level and in other countries extensively regulate, among other things, the
research, development, testing, manufacture, quality control, approval, labeling, packaging, storage, record-keeping, promotion, advertising, distribution, post-approval monitoring and reporting, marketing and export and import of drug and
biological products, or biologics, such as our product candidates. Generally, before a new drug or biologic can be marketed, considerable data demonstrating its quality, safety and efficacy must be obtained, organized into a format specific to each
regulatory authority, submitted for review and approved by the regulatory authority.

U.S. Biological Product Development

In the United States, the FDA regulates biologics under the Federal Food, Drug, and Cosmetic Act, or FDCA, and the Public Health Service Act, or
PHSA, and their implementing regulations. Biologics are also subject to other federal, state and local statutes and regulations. The process of obtaining regulatory approvals and the subsequent compliance with appropriate federal, state, local and
foreign statutes and regulations require the expenditure of substantial time and financial resources. Failure to comply with the applicable U.S. requirements at any time during the product development process, approval process or after approval, may
subject an applicant to administrative or judicial sanctions. These sanctions could include, among other actions, the FDAs refusal to approve pending applications, withdrawal of an approval, a clinical hold, untitled or warning letters,
product recalls or withdrawals from the market, product seizures, total or partial suspension of production or distribution injunctions, fines, refusals of government contracts, restitution, disgorgement, or civil or criminal penalties. Any agency
or judicial enforcement action could have a material adverse effect on us.



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Our product candidates must be approved by the FDA through the Biologics License Application, or BLA, process
before they may be legally marketed in the United States. The process required by the FDA before a biologic may be marketed in the United States generally involves the following:



| |  |  | completion of extensive nonclinical, sometimes referred to as pre-clinical laboratory tests, pre-clinical animal studies and formulation studies in accordance with applicable regulations, including the FDAs Good
Laboratory Practice, or GLP, regulations;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | submission to the FDA of an IND, which must become effective before human clinical trials may begin;
| | - |  | ----------------------------------------------------------------------------------------------------



| |  |  | performance of adequate and well-controlled human clinical trials in accordance with applicable IND and other clinical trial-related regulations, sometimes referred to as good clinical practices, or GCPs, to establish
the safety and efficacy of the proposed product candidate for its proposed indication;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | submission to the FDA of a BLA;
| | - |  | -------------------------------



| |  |  | satisfactory completion of an FDA pre-approval inspection of the manufacturing facility or facilities where the product is produced to assess compliance with the FDAs current good manufacturing practice, or cGMP,
requirements to assure that the facilities, methods and controls are adequate to preserve the products identity, strength, quality, purity and potency;
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | potential FDA audit of the pre-clinical and/or clinical trial sites that generated the data in support of the BLA; and
| | - |  | ----------------------------------------------------------------------------------------------------------------------



| |  |  | FDA review and approval of the BLA prior to any commercial marketing or sale of the product in the United States.
| | - |  | -----------------------------------------------------------------------------------------------------------------

The data required to support a BLA is generated in two distinct development stages: pre-clinical and clinical. The pre-clinical development stage generally
involves laboratory evaluations of drug chemistry, formulation and stability, as well as studies to evaluate toxicity in animals, which support subsequent clinical testing. The conduct of the pre-clinical studies must comply with federal
regulations, including GLPs. The sponsor must submit the results of the pre-clinical studies, together with manufacturing information, analytical data, any available clinical data or literature and a proposed clinical protocol, to the FDA as part of
the IND. An IND is a request for authorization from the FDA to administer an investigational drug product to humans. The central focus of an IND submission is on the general investigational plan and the protocol(s) for human trials. The IND
automatically becomes effective 30 days after receipt by the FDA, unless the FDA raises concerns or questions regarding the proposed clinical trials and places the IND on clinical hold within that 30-day time period. In such a case, the IND sponsor
and the FDA must resolve any outstanding concerns before the clinical trial can begin. The FDA may also impose clinical holds on a product candidate at any time before or during clinical trials due to safety concerns or non-compliance. Accordingly,
we cannot be sure that submission of an IND will result in the FDA allowing clinical trials to begin, or that, once begun, issues will not arise that could cause the trial to be suspended or terminated.

The clinical stage of development involves the administration of the product candidate to healthy volunteers or patients under the supervision of qualified
investigators, generally physicians not employed by or under the trial sponsors control, in accordance with GCPs, which include the requirement that all research subjects provide their informed consent for their participation in any clinical
trial. Clinical trials are conducted under protocols detailing, among other things, the objectives of the clinical trial, dosing procedures, subject selection and exclusion criteria, and the parameters to be used to monitor subject safety and assess
efficacy. Each protocol, and any subsequent amendments to the protocol, must be submitted to the FDA as part of the IND. Further, each clinical trial must be reviewed and approved by an independent institutional review board, or IRB, at or servicing
each institution at which the clinical trial will be conducted. An IRB is charged with protecting the welfare and rights of trial participants and considers such items as whether the risks to individuals participating in the clinical trials are
minimized and are reasonable in relation to anticipated benefits. The IRB also approves the informed consent form that must be provided to each clinical trial subject or his or her legal representative and must monitor the clinical trial until
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There are also requirements governing the reporting of ongoing clinical trials and completed clinical trial
results to public registries. Sponsors of certain clinical trials of FDA-regulated products, including biologics, are required to register and disclose specified clinical trial information, which is publicly available at www.clinicaltrials.gov.
Information related to the product, patient population, phase of investigation, study sites and investigators, and other aspects of the clinical trial is then made public as part of the registration. Sponsors are also obligated to discuss the
results of their clinical trials after completion. Disclosure of the results of these trials can be delayed until the new product or new indication being studied has been approved. However, there are evolving rules and increasing requirements for
publication of all trial-related information, and it is possible that data and other information from trials involving drugs and biologics that never garner approval could require disclosure in the future. In addition, publication policies of major
medical journals mandate certain registration and disclosures as a pre-condition for potential publication, even if not currently mandated as a matter of law. Competitors may use this publicly available information to gain knowledge regarding the
progress of development programs.

Clinical trials are generally conducted in three sequential phases that may overlap, known as Phase I, Phase II and
Phase III clinical trials. Phase I clinical trials generally involve a small number of healthy volunteers who are initially exposed to a single dose and then multiple doses of the product candidate. The primary purpose of these clinical trials is to
assess the metabolism, pharmacologic action, side effect tolerability and safety of the product candidate and, if possible, to gain early evidence on effectiveness. Phase II clinical trials typically involve studies in disease-affected patients to
determine the dose required to produce the desired benefits. At the same time, safety and further pharmacokinetic and pharmacodynamic information is collected, as well as identification of possible adverse effects and safety risks and preliminary
evaluation of efficacy. Phase III clinical trials generally involve large numbers of patients at multiple sites, in multiple countries (from several hundred to several thousand subjects) and are designed to provide the data necessary to demonstrate
the efficacy of the product for its intended use, its safety in use, and to establish the overall benefit/risk relationship of the product and provide an adequate basis for product approval. Phase III clinical trials may include comparisons with
placebo and/or other comparator treatments. The duration of treatment is often extended to mimic the actual use of a product during marketing. Generally, two adequate and well-controlled Phase III clinical trials are required by the FDA for approval
of a BLA.

Post-approval trials, sometimes referred to as Phase IV clinical trials, may be conducted after initial marketing approval. These trials are
used to gain additional experience from the treatment of patients in the intended therapeutic indication. In certain instances, FDA may condition approval of a BLA on the sponsors agreement to conduct additional clinical trials to further
assess the biologics safety and effectiveness after BLA approval.

Progress reports detailing the results of the clinical trials must be submitted
at least annually to the FDA and written IND safety reports must be submitted to the FDA and the investigators for serious and unexpected suspected adverse, findings from other studies suggesting a significant risk to humans exposed to the drug,
findings from animal or in vitro testing suggesting a significant risk to humans, and any clinically important rate increase of a serious suspected adverse reaction over that listed in the protocol or investigator brochure. Phase I, Phase II
and Phase III clinical trials may not be completed successfully within any specified period, if at all. The FDA, the IRB, or the sponsor may suspend or terminate a clinical trial at any time on various grounds, including a finding that the research
subjects or patients are being exposed to an unacceptable health risk. Similarly, an IRB can suspend or terminate approval of a clinical trial at its institution if the clinical trial is not being conducted in accordance with the IRBs
requirements or if the drug has been associated with unexpected serious harm to patients. Additionally, some clinical trials are overseen by an independent group of qualified experts organized by the clinical trial sponsor, known as a data safety
monitoring board or committee. This group provides authorization for whether or not a trial may move forward at designated intervals based on access to certain data from the trial. We may also suspend or terminate a clinical trial based on evolving
business objectives and/or competitive climate. Concurrent with clinical trials, companies usually complete additional animal studies and must also develop additional information about the



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chemistry and physical characteristics of the product candidate as well as finalize a process for manufacturing the product in commercial quantities in accordance with cGMP requirements. The
manufacturing process must be capable of consistently producing quality batches of the product candidate and, among other things, must develop methods for testing the identity, strength, quality and purity of the final product. Additionally,
appropriate packaging must be selected and tested and stability studies must be conducted to demonstrate that the product candidate does not undergo unacceptable deterioration over its shelf life.

BLA and FDA Review Process

Following
trial completion, trial data is analyzed to assess safety and efficacy. The results of pre-clinical studies and clinical trials are then submitted to the FDA as part of a BLA, along with proposed labeling for the product and information about the
manufacturing process and facilities that will be used to ensure product quality, results of analytical testing conducted on the chemistry of the product candidate, and other relevant information. The BLA is a request for approval to market the
biologic for one or more specified indications and must contain proof of safety, purity, potency and efficacy, which is demonstrated by extensive pre-clinical and clinical testing. The application includes both negative or ambiguous results of
pre-clinical and clinical trials as well as positive findings. Data may come from company-sponsored clinical trials intended to test the safety and efficacy of a use of a product, or from a number of alternative sources, including studies initiated
by investigators. To support marketing approval, the data submitted must be sufficient in quality and quantity to establish the safety and efficacy of the investigational product to the satisfaction of the FDA. FDA approval of a BLA must be obtained
before a biologic may be marketed in the United States.

Under the Prescription Drug User Fee Act, or PDUFA, as amended, each BLA must be accompanied by a
significant user fee, which is adjusted on an annual basis. PDUFA also imposes an annual product fee for human drugs and an annual establishment fee on facilities used to manufacture prescription drugs. Fee waivers or reductions are available in
certain circumstances, including a waiver of the application fee for the first application filed by a small business.

Once a BLA has been accepted for
filing, which occurs, if at all, sixty days after the BLAs submission, the FDAs goal is to review BLAs within ten months of the filing date for standard review or six months of the filing date for priority review, if the application is
for a product intended for a serious or life-threatening condition and the product, if approved, would provide a significant improvement in safety or effectiveness. The review process is often significantly extended by FDA requests for additional
information or clarification.

After the BLA submission is accepted for filing, the FDA reviews the BLA to determine, among other things, whether the
proposed product candidate is safe and effective for its intended use, and whether the product candidate is being manufactured in accordance with cGMP to assure and preserve the product candidates identity, strength, quality, purity and
potency. The FDA may refer applications for novel drug product candidates or drug product candidates which present difficult questions of safety or efficacy to an advisory committee, typically a panel that includes clinicians and other experts, for
review, evaluation and a recommendation as to whether the application should be approved and under what conditions. The FDA is not bound by the recommendations of an advisory committee, but it considers such recommendations carefully when making
decisions. The FDA will likely re-analyze the clinical trial data, which could result in extensive discussions between the FDA and us during the review process. The review and evaluation of a BLA by the FDA is extensive and time consuming and may
take longer than originally planned to complete, and we may not receive a timely approval, if at all.

Before approving a BLA, the FDA will conduct a
pre-approval inspection of the manufacturing facilities for the new product to determine whether they comply with cGMPs. The FDA will not approve the product unless it determines that the manufacturing processes and facilities are in compliance with
cGMP requirements and adequate to assure consistent production of the product within required specifications. In addition, before approving a BLA,



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the FDA may also audit data from clinical trials to ensure compliance with GCP requirements. After the FDA evaluates the application, manufacturing process and manufacturing facilities, it may
issue an approval letter or a Complete Response Letter. An approval letter authorizes commercial marketing of the product with specific prescribing information for specific indications. A Complete Response Letter indicates that the review cycle of
the application is complete and the application will not be approved in its present form. A Complete Response Letter usually describes all of the specific deficiencies in the BLA identified by the FDA. The Complete Response Letter may require
additional clinical data and/or an additional pivotal Phase III clinical trial(s), and/or other significant and time-consuming requirements related to clinical trials, pre-clinical studies or manufacturing. If a Complete Response Letter is issued,
the applicant may either resubmit the BLA, addressing all of the deficiencies identified in the letter, or withdraw the application. Even if such data and information is submitted, the FDA may ultimately decide that the BLA does not satisfy the
criteria for approval. Data obtained from clinical trials are not always conclusive and the FDA may interpret data differently than we interpret the same data.

There is no assurance that the FDA will ultimately approve a product for marketing in the United States and we may encounter significant difficulties or costs
during the review process. If a product receives marketing approval, the approval may be significantly limited to specific populations, severities of allergies, and dosages or the indications for use may otherwise be limited, which could restrict
the commercial value of the product. Further, the FDA may require that certain contraindications, warnings or precautions be included in the product labeling or may condition the approval of the BLA on other changes to the proposed labeling,
development of adequate controls and specifications, or a commitment to conduct post-market testing or clinical trials and surveillance to monitor the effects of approved products. For example, the FDA may require Phase IV testing which involves
clinical trials designed to further assess the products safety and effectiveness and may require testing and surveillance programs to monitor the safety of approved products that have been commercialized. The FDA may also place other
conditions on approvals including the requirement for a Risk Evaluation and Mitigation Strategy, or REMS, to assure the safe use of the product. If the FDA concludes a REMS is needed, the sponsor of the BLA must submit a proposed REMS. The FDA will
not approve the NDA without an approved REMS, if required. A REMS could include medication guides, physician communication plans, or elements to assure safe use, such as restricted distribution methods, patient registries and other risk minimization
tools. Any of these limitations on approval or marketing could restrict the commercial promotion, distribution, prescription or dispensing of products. Product approvals may be withdrawn for non-compliance with regulatory standards or if problems
occur following initial marketing.

Review and Approval of Combination Products in the United States

Certain products may be comprised of components that would normally be regulated under different types of regulatory authorities, and frequently by different
centers at the FDA. These products are known as combination products. Specifically, under regulations issued by the FDA, a combination product may be:



| |  |  | a product comprised of two or more regulated components that are physically, chemically, or otherwise combined or mixed and produced as a single entity;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | two or more separate products packaged together in a single package or as a unit and comprised of drug and device products;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------



| |  |  | a drug, device, or biological product packaged separately that according to its investigational plan or proposed labeling is intended for use only with an approved individually specified drug, device or biological where
both are required to achieve the intended use, indication, or effect and where upon approval of the proposed product the labeling of the approved product would need to be changed, e.g., to reflect a change in intended use, dosage form, strength,
route of administration, or significant change in dose; or
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| |  |  | any investigational drug, device, or biological packaged separately that according to its proposed labeling is for use only with another individually specified investigational drug, device, or biological product where
both are required to achieve the intended use, indication, or effect.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Our Viaskin product candidates are combination products comprising a
device for delivery of a biologic. Under the FDCA, the FDA is charged with assigning a center with primary jurisdiction, or a lead center, for review of a combination product. That determination is based on the primary mode of action of
the combination product, which means the mode of action expected to make the greatest contribution to the overall intended therapeutic effects. Thus, if the primary mode of action of a device-biologic combination product is attributable to the
biologic product, that is, if it acts by means of a virus, therapeutic serum, toxin, antitoxin, vaccine, blood, blood component or derivative, allergenic product, or analogous product, the FDA center responsible for premarket review of the biologic
product would have primary jurisdiction for the combination product.

Expedited Development and Review Programs

The FDA has a fast track program that is intended to expedite or facilitate the process for reviewing new drugs and biological products that meet certain
criteria. Specifically, new drugs and biological products are eligible for fast track designation if they are intended to treat a serious or life-threatening condition and nonclinical or clinical data demonstrate the potential to address an unmet
medical need. Fast track designation applies to the combination of the product and the specific indication for which it is being studied. The sponsor of a new drug or biologic may request the FDA to designate the drug or biologic as a fast track
product concurrently with the submission of an IND or at any time before a pre-NDA meeting, and the FDA must determine if the product qualifies for fast track designation within 60 days of receipt of the sponsors request. Unique to a fast
track product, the FDA may consider for review sections of the marketing application on a rolling basis before the complete application is submitted, if the sponsor provides a schedule for the submission of the sections of the application, the FDA
agrees to accept sections of the application and determines that the schedule is acceptable, and the sponsor pays any required user fees upon submission of the first section of the application.

Any product submitted to the FDA for marketing, including under a fast track program, may be eligible for other types of FDA programs intended to expedite
development and review, such as priority review and accelerated approval. Any product is eligible for priority review, or review within a six-month timeframe from the date a complete BLA is accepted for filing, if it treats a serious condition and
has the potential to provide a significant improvement in safety or effectiveness. The FDA will attempt to direct additional resources to the evaluation of an application for a new drug or biological product designated for priority review in an
effort to facilitate the review.

Additionally, a product may be eligible for accelerated approval. Drug or biological products studied for their safety
and effectiveness in treating serious or life-threatening illnesses and that provide meaningful therapeutic benefit over existing treatments may receive accelerated approval, which means that they may be approved on the basis of adequate and
well-controlled clinical trials establishing that the product has an effect on a surrogate endpoint that is reasonably likely to predict a clinical benefit, or on the basis of an effect on a clinical endpoint other than survival or irreversible
morbidity. As a condition of approval, the FDA may require that a sponsor of a drug or biological product receiving accelerated approval perform adequate and well-controlled post-marketing clinical trials. If the FDA concludes that a drug shown to
be effective can be safely used only if distribution or use is restricted, it will require such post-marketing restrictions as it deems necessary to assure safe use of the drug, such as:



| |  |  | distribution restricted to certain facilities or physicians with special training or experience; or
| | - |  | ---------------------------------------------------------------------------------------------------



| |  |  | distribution conditioned on the performance of specified medical procedures.
| | - |  | ----------------------------------------------------------------------------

The limitations imposed would be
commensurate with the specific safety concerns presented by the product. In addition, the FDA currently requires as a condition for accelerated approval pre-approval of promotional materials, which could adversely impact the timing of the commercial
launch of the product. Fast track designation, priority review and accelerated approval do not change the standards for approval but may expedite the development or approval process.



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Breakthrough Designation

The Food and Drug Administration Safety and Innovation Act, or FDASIA, amended the FDCA to require the FDA to expedite the development and review of a
breakthrough therapy. A product can be designated as a breakthrough therapy if it is intended to treat a serious or life-threatening condition and preliminary clinical evidence indicates that it may demonstrate substantial improvement over existing
therapies on one or more clinically significant endpoints. A sponsor may request that a product candidate be designated as a breakthrough therapy concurrently with the submission of an IND or any time before an end-of-Phase-II meeting, and the FDA
must determine if the product candidate qualifies for breakthrough therapy designation within 60 days of receipt of the sponsors request. If so designated, the FDA shall act to expedite the development and review of the products
marketing application, including by meeting with the sponsor throughout the products development, providing timely advice to the sponsor to ensure that the development program to gather pre-clinical and clinical data is as efficient as
practicable, involving senior managers and experienced review staff in a cross-disciplinary review, assigning a cross-disciplinary project lead for the FDA review team to facilitate an efficient review of the development program and to serve as a
scientific liaison between the review team and the sponsor, and taking steps to ensure that the design of the clinical trials is as efficient as practicable.

Pediatric Trials

Under the Pediatric
Research Equity Act, or PREA, a BLA or supplement to a BLA must contain data to assess the safety and efficacy of the product for the claimed indications in all relevant pediatric subpopulations and to support dosing and administration for each
pediatric subpopulation for which the product is safe and effective. FDASIA requires that a sponsor who is planning to submit a marketing application for a drug or biological product that includes a new active ingredient, new indication, new dosage
form, new dosing regimen or new route of administration submit an initial Pediatric Study Plan, or PSP, within sixty days of an end-of-Phase II meeting or as may be agreed between the sponsor and FDA. The initial PSP must include an outline of the
pediatric study or studies that the sponsor plans to conduct, including study objectives and design, age groups, relevant endpoints and statistical approach, or a justification for not including such detailed information, and any request for a
deferral of pediatric assessments or a full or partial waiver of the requirement to provide data from pediatric studies along with supporting information. FDA and the sponsor must reach agreement on the PSP. A sponsor can submit amendments to an
agreed-upon initial PSP at any time if changes to the pediatric plan need to be considered based on data collected from nonclinical studies, early phase clinical trials, and/or other clinical development programs. The FDA may, on its own initiative
or at the request of the applicant, grant deferrals for submission of data or full or partial waivers.

Post-Marketing Requirements

Following approval of a new product, a manufacturer and the approved product are subject to continuing regulation by the FDA, including, among other
things, monitoring and recordkeeping activities, reporting to the applicable regulatory authorities of adverse experiences with the product, providing the regulatory authorities with updated safety and efficacy information, product sampling and
distribution requirements, and complying with promotion and advertising requirements, which include, among others, standards for direct-to-consumer advertising, restrictions on promoting products for uses or in patient populations that are not
described in the products approved labeling (known as off-label use), limitations on industry-sponsored scientific and educational activities, and requirements for promotional activities involving the internet. Although physicians
may prescribe legally available drugs and biologics for off-label uses, manufacturers may not market or promote such off-label uses. Modifications



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or enhancements to the product or its labeling or changes of the site of manufacture are often subject to the approval of the FDA and other regulators, which may or may not be received or may
result in a lengthy review process. Prescription drug promotional materials must be submitted to the FDA in conjunction with their first use. Any distribution of prescription drug products and pharmaceutical samples must comply with the U.S.
Prescription Drug Marketing Act, or the PDMA, a part of the FDCA.

In the United States, once a product is approved, its manufacture is subject to
comprehensive and continuing regulation by the FDA. The FDA regulations require that products be manufactured in specific approved facilities and in accordance with cGMP. Moreover, the constituent parts of a combination product retain their
regulatory status, for example, as a biologic or device, and as such, we may be subject to additional requirements in the Quality System Regulation, or QSR, applicable to medical devices, such as design controls, purchasing controls, and corrective
and preventive action. We rely, and expect to continue to rely, on third parties for the production of clinical and commercial quantities of our products in accordance with cGMP regulations. cGMP regulations require, among other things, quality
control and quality assurance as well as the corresponding maintenance of records and documentation and the obligation to investigate and correct any deviations from cGMP. Manufacturers and other entities involved in the manufacture and distribution
of approved products are required to register their establishments with the FDA and certain state agencies, and are subject to periodic unannounced inspections by the FDA and certain state agencies for compliance with cGMP and other laws.
Accordingly, manufacturers must continue to expend time, money, and effort in the area of production and quality control to maintain cGMP compliance. These regulations also impose certain organizational, procedural and documentation requirements
with respect to manufacturing and quality assurance activities. BLA holders using contract manufacturers, laboratories or packagers are responsible for the selection and monitoring of qualified firms, and, in certain circumstances, qualified
suppliers to these firms. These firms and, where applicable, their suppliers are subject to inspections by the FDA at any time, and the discovery of violative conditions, including failure to conform to cGMP, could result in enforcement actions that
interrupt the operation of any such facilities or the ability to distribute products manufactured, processed or tested by them. Discovery of problems with a product after approval may result in restrictions on a product, manufacturer, or holder of
an approved BLA, including, among other things, recall or withdrawal of the product from the market.

The FDA also may require post-approval testing,
sometimes referred to as Phase IV testing, risk minimization action plans and post-marketing surveillance to monitor the effects of an approved product or place conditions on an approval that could restrict the distribution or use of the product.
Discovery of previously unknown problems with a product or the failure to comply with applicable FDA requirements can have negative consequences, including adverse publicity, judicial or administrative enforcement, warning letters from the FDA,
mandated corrective advertising or communications with doctors, and civil or criminal penalties, among others. Newly discovered or developed safety or effectiveness data may require changes to a products approved labeling, including the
addition of new warnings and contraindications, and also may require the implementation of other risk management measures. Also, new government requirements, including those resulting from new legislation, may be established, or the FDAs
policies may change, which could delay or prevent regulatory approval of our products under development.

Other Regulatory Matters

Manufacturing, sales, promotion and other activities following product approval are also subject to regulation by numerous regulatory authorities in
addition to the FDA, including, the Centers for Medicare & Medicaid Services, or CMS, other divisions of the Department of Health and Human Services, the Drug Enforcement Administration, the Consumer Product Safety Commission, the Federal
Trade Commission, the Occupational Safety & Health Administration, the Environmental Protection Agency and state and local governments. In the United States, sales, marketing and scientific/educational programs must also comply with state
and federal fraud and abuse laws, data privacy and security laws, transparency laws, and pricing and reimbursement requirements in connection with



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governmental payor programs, among others. The handling of any controlled substances must comply with the U.S. Controlled Substances Act and Controlled Substances Import and Export Act. Products
must meet applicable child-resistant packaging requirements under the U.S. Poison Prevention Packaging Act. Manufacturing, sales, promotion and other activities are also potentially subject to federal and state consumer protection and unfair
competition laws.

The distribution of pharmaceutical products is subject to additional requirements and regulations, including extensive record-keeping,
licensing, storage and security requirements intended to prevent the unauthorized sale of pharmaceutical products.

The failure to comply with regulatory
requirements subjects firms to possible legal or regulatory action. Depending on the circumstances, failure to meet applicable regulatory requirements can result in criminal prosecution, fines or other penalties, injunctions, recall or seizure of
products, total or partial suspension of production, denial or withdrawal of product approvals, or refusal to allow a firm to enter into supply contracts, including government contracts. In addition, even if a firm complies with FDA and other
requirements, new information regarding the safety or efficacy of a product could lead the FDA to modify or withdraw product approval. Prohibitions or restrictions on sales or withdrawal of future products marketed by us could materially affect our
business in an adverse way.

Changes in regulations, statutes or the interpretation of existing regulations could impact our business in the future by
requiring, for example: (i) changes to our manufacturing arrangements; (ii) additions or modifications to product labeling; (iii) the recall or discontinuation of our products; or (iv) additional record-keeping requirements. If
any such changes were to be imposed, they could adversely affect the operation of our business.

U.S. Patent Term Restoration and
Marketing Exclusivity

Depending upon the timing, duration and specifics of the FDA approval of our product candidates, some of our U.S. patents may be
eligible for limited patent term extension under the Drug Price Competition and Patent Term Restoration Act of 1984, commonly referred to as the Hatch-Waxman Amendments. The Hatch-Waxman Amendments permit a patent restoration term of up to five
years as compensation for patent term lost during product development and the FDA regulatory review process. However, patent term restoration cannot extend the remaining term of a patent beyond a total of 14 years from the products approval
date. The patent term restoration period is generally one-half the time between the effective date of an IND and the submission date of a BLA plus the time between the submission date of a BLA and the approval of that application, except that the
review period is reduced by any time during which the applicant failed to exercise due diligence. Only one patent applicable to an approved drug is eligible for the extension and the application for the extension must be submitted prior to the
expiration of the patent. The U.S. PTO, in consultation with the FDA, reviews and approves the application for any patent term extension or restoration. In the future, we may apply for restoration of patent term for our currently owned or licensed
patents to add patent life beyond its current expiration date, depending on the expected length of the clinical trials and other factors involved in the filing of the relevant BLA.

An abbreviated approval pathway for biological products shown to be similar to, or interchangeable with, an FDA-licensed reference biological product was
created by the Biologics Price Competition and Innovation Act of 2009, or BPICA, which was part of the ACA. This amendment to the PHSA attempts to minimize duplicative testing. Biosimilarity, which requires that the biological product be highly
similar to the reference product notwithstanding minor differences in clinically inactive components and that there be no clinically meaningful differences between the product and the reference product in terms of safety, purity, and potency, can be
shown through analytical studies, animal studies, and a clinical trial or trials. Interchangeability requires that a biological product be biosimilar to the reference product and the product can be expected to produce the same clinical results as
the reference product in any given patient and, for products administered multiple times, the product and the reference product may be alternated or switched after one has been previously administered without increasing safety risks or



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risks of diminished efficacy relative to exclusive use of the reference biological product. However, complexities associated with the larger, and often more complex, structure of biological
products as compared to small molecule drugs, as well as the process by which such products are manufactured, pose significant hurdles to implementation that are still being worked out by the FDA.

A reference biological product is granted twelve years of exclusivity from the time of first licensure of the product, and the FDA will not accept an
application for a biosimilar or interchangeable product based on the reference biological product until four years after the date of first licensure. First licensure typically means the initial date the particular product at issue was
licensed in the United States. This does not include a supplement for the biological product or a subsequent application by the same sponsor or manufacturer of the biological product (or licensor, predecessor in interest, or other related entity)
for a change that results in a new indication, route of administration, dosing schedule, dosage form, delivery system, delivery device, or strength, unless that change is a modification to the structure of the biological product and such
modification changes its safety, purity, or potency. Whether a subsequent application, if approved, warrants exclusivity as the first licensure of a biological product is determined on a case-by-case basis with data submitted by the
sponsor.

Pediatric exclusivity is another type of regulatory market exclusivity in the United States. Pediatric exclusivity, if granted, adds six months
to existing exclusivity periods and patent terms. This six-month exclusivity, which runs from the end of other exclusivity protection or patent term, may be granted based on the voluntary completion of a pediatric trial in accordance with an
FDA-issued Written Request for such a trial.

European Union Drug Development

In the European Union, our future product candidates may also be subject to extensive regulatory requirements. As in the United States, medicinal products can
only be marketed if a marketing authorization from the competent regulatory agencies has been obtained.

Similar to the United States, the various phases
of pre-clinical and clinical research in the European Union are subject to significant regulatory controls. Although the EU Clinical Trials Directive 2001/20/EC has sought to harmonize the European Union clinical trials regulatory framework, setting
out common rules for the control and authorization of clinical trials in the European Union, the European Union Member States have transposed and applied the provisions of the Directive differently. This has led to significant variations in the
Member State regimes. To improve the current system, a new Regulation No. 536/2014 on clinical trials on medicinal product candidates for human use, which repealed Directive 2001/20/EC, was adopted on April 16, 2014 and published in the
European Official Journal on May 27, 2014. The new Regulation aims at harmonizing and streamlining the clinical trials authorization process, simplifying adverse event reporting procedures, improving the supervision of clinical trials, and
increasing their transparency. The new Regulation entered into force on June 16, 2014 but will apply not earlier than May 28, 2016. Until then the Clinical Trials Directive 2001/20/EC will still apply. In addition, the transitory
provisions of the new Regulation offer the sponsors the possibility to choose between the requirements of the Directive and the Regulation for one year from the entry into application of the Regulation.

Under the current regime, before a clinical trial can be initiated it must be approved in each of the European Union countries where the trial is to be
conducted by two distinct bodies: the National Competent Authority, or NCA, and one or more Ethics Committees, or ECs. Under the current regime all suspected unexpected serious adverse reactions, or SUSARs, to the investigated drug that occur during
the clinical trial have to be reported to the NCA and ECs of the Member State where they occurred.



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European Union Drug Review and Approval

In the European Economic Area, or EEA (which is comprised of the 28 Member States of the European Union plus Norway, Iceland and Liechtenstein), medicinal
products can only be commercialized after obtaining a Marketing Authorization, or MA. There are two types of marketing authorizations:

The Community MA,
which is issued by the European Commission through the Centralized Procedure, based on the opinion of the Committee for Medicinal Products for Human Use, or CHMP, of the European Medicines Agency, or EMA, and which is valid throughout the entire
territory of the EEA. The Centralized Procedure is mandatory for certain types of products, such as biotechnology medicinal products, orphan medicinal products, and medicinal products containing a new active substance indicated for the treatment of
AIDS, cancer, neurodegenerative disorders, diabetes, auto-immune and viral diseases. The Centralized Procedure is optional for products containing a new active substance not yet authorized in the EEA, or for products that constitute a significant
therapeutic, scientific or technical innovation or which are in the interest of public health in the European Union.

National MAs, which are issued by
the competent authorities of the Member States of the EEA and only cover their respective territory, are available for products not falling within the mandatory scope of the Centralized Procedure. Where a product has already been authorized for
marketing in a Member State of the EEA, this National MA can be recognized in another Member States through the Mutual Recognition Procedure. If the product has not received a National MA in any Member State at the time of application, it can be
approved simultaneously in various Member States through the Decentralized Procedure. Under the Decentralized Procedure an identical dossier is submitted to the competent authorities of each of the Member States in which the MA is sought, one of
which is selected by the applicant as the Reference Member State, or RMS. The competent authority of the RMS prepares a draft assessment report, a draft summary of the product characteristics, or SPC, and a draft of the labeling and package leaflet,
which are sent to the other Member States (referred to as the Concerned Member States, or CMSs) for their approval. If the CMSs raise no objections, based on a potential serious risk to public health, to the assessment, SPC, labeling, or packaging
proposed by the RMS, the product is subsequently granted a national MA in all the Member States (i.e. in the RMS and the CMSs).

Under the above described
procedures, before granting the MA, the EMA or the competent authorities of the Member States of the EEA make an assessment of the risk-benefit balance of the product on the basis of scientific criteria concerning its quality, safety and efficacy.

Other Regulatory Matters

French Regulatory Framework

In the
European Union, the regulation governing clinical trials is currently based on European Directive No. 2001/20/EC of April 4, 2001 relative to the implementation of good clinical practices in the conduct of clinical trials on medicinal
products for human use. Each country of the European Union had to transpose this Directive into national law by eventually adapting it to its own regulatory framework.

In France, for example, Directive No. 2001/20/EC has been transposed by Act No. 2004-806 of August 9, 2004 relative to the public health policy
and Decree No. 2006-477, April 26, 2006, modifying the title of the Code of Public Health dedicated to biomedical research. This regulation replaces the notification procedure arising from the Huriet-Sérusclat Act of
December 20, 1988. Article L. 1121-4 of the Public Health Code, as amended by the Act of August 9, 2004, now establishes a system of prior authorization issued by the ANSM with the favorable opinion of a competent Research and Ethics
Committee for the place where the investigator exercises his activity. On the basis of Article L. 1123-7 of the same code, the Committee shall deliver its opinion on the researchs conditions of validity, particularly with respect to
participant protection, their information and how they collect informed consent,



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as well as the projects general relevance, the satisfactory nature of the assessment of benefits and risks and the adequacy between the objectives pursued and the means implemented. The
ANSM, after submission of the complete file containing not only information on the clinical protocol, but also specific product data and its quality control, as well as results of pre-clinical studies may inform the sponsor that it objects to the
implementation of the research. The sponsor can then modify the contents of his research project and submit this amended or supplemented request to the ANSM; this procedure may not, however, be applied more than once. If the sponsor does not alter
the content of its request, the request is considered rejected. Under the terms of the Decree of April 26, 2006, the time limit for the examination of a request for authorization cannot exceed 60 days from the receipt of the complete file.
Finally, under Article L. 1123-11, in the event of risk to public health or if the ANSM considers that the conditions in which the research is implemented no longer correspond to the conditions indicated in the request for authorization or does not
comply with the provisions of the Public Health Code, it may at any time request changes to procedures for the realization of research, and suspend or ban this research. The decision of November 24, 2006 sets the rules for Good Clinical
Practice for biomedical research on medicines for human use provided for in Article L. 1121-3 of the Public Health Code. The purpose of Good Clinical Practice, or GCP, is to ensure both the reliability of data arising from clinical trials and the
protection of persons participating in these clinical trials. GCPs shall apply to all clinical trials, including pharmacokinetics, bioavailability and bioequivalence studies in healthy volunteers and Phase II to IV clinical trials.

Personal data collected during clinical trials should be declared in simplified form to the Commission Nationale Informatique et Liberté, or CNIL.
Patients then have a right to access and correct this data pursuant to Act No. 78-17 of January 6, 1978, as amended by law No. 2004-801 of August 6, 2004, concerning computing, files and freedoms.

The main French regulatory texts concerning the conduct of clinical trials are as follows:



| |  |  | Law No. 2004-806 of August 9, 2004 related to the public health policy;
| | - |  | -----------------------------------------------------------------------



| |  |  | Decision of November 24, 2006 establishing the rules for Good Clinical Practice;
| | - |  | --------------------------------------------------------------------------------



| |  |  | Decision of December 11, 2006 establishing the rules of good manufacturing practice;
| | - |  | ------------------------------------------------------------------------------------



| |  |  | Law No. 2004-801 of August 6, 2004 and its decrees of application dealing with data protection;
| | - |  | -----------------------------------------------------------------------------------------------



| |  |  | Law No. 2002-3003 of March 4, 2002 and its decrees of application relative to patients rights and the quality of the healthcare system;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Decision of January 5, 2006 concerning the approval of a methodology for the reference to the processing of personal data carried out within the context of biomedical research (reference methodology MR-001);
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Decree No. 2007-454 of March 25, 2007 concerning the conventions and the links uniting the members of certain healthcare professions to companies and amending the Public Health Code (regulatory provisions);
and
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Law of March 13, 2000 relative to electronic signature and Decree 2001-272 of March 30, 2001, relative to electronic signature.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------

French Pharmaceutical Company Status

To
date, we do not have the status of pharmaceutical establishment, and therefore, cannot either manufacture the product candidates we develop or directly consider their marketing. Obtaining the pharmaceutical establishment license, either as
distributor exploitant or as manufacturer, requires the submission of a request file specific to each of the two qualifications with the ANSM, which only grants it after review of this file and evaluation, usually after verification that
the company has adequate premises, the necessary personnel and an adapted structure with satisfactory procedures for carrying out the proposed pharmaceutical activities.



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We currently entrust CMOs with the manufacturing of clinical batches and intend to continue relying on CMOs for
the production of the first commercial batches. We may consider internalizing production once our first product candidate is approved by the regulatory authorities.

Reimbursement

Significant
uncertainty exists as to the coverage and reimbursement status of any product candidates for which we or our collaborators obtain regulatory approval. Sales of our products will depend, in part, on the extent to which our products, once approved,
will be covered and reimbursed by third-party payors, such as government health programs, commercial insurance and managed healthcare organizations. These third-party payors are increasingly reducing reimbursements for medical products and services.
The process for determining whether a third-party payor will provide coverage for a drug product typically is separate from the process for setting the price of a drug product or for establishing the reimbursement rate that a payor will pay for the
drug product once coverage is approved. Third-party payors may limit coverage to specific drug products on an approved list, also known as a formulary, which might not include all of the FDA approved drugs for a particular indication.

In order to secure coverage and reimbursement for any product candidate that might be approved for sale, we may need to conduct expensive pharmacoeconomic
studies in order to demonstrate the medical necessity and cost-effectiveness of the product candidate, in addition to the costs required to obtain FDA or other comparable regulatory approvals. Whether or not we conduct such studies, our product
candidates may not be considered medically necessary or cost-effective. A third-party payors decision to provide coverage for a drug product does not imply that an adequate reimbursement rate will be approved. Further, one payors
determination to provide coverage for a product does not assure that other payors will also provide coverage, and adequate reimbursement, for the product. Third party reimbursement may not be sufficient to enable us to maintain price levels high
enough to realize an appropriate return on our investment in product development.

The containment of healthcare costs has become a priority of federal
and state governments, and the prices of drugs have been a focus in this effort. The U.S. government, state legislatures and foreign governments have shown significant interest in implementing cost-containment programs, including price controls,
restrictions on reimbursement and requirements for substitution of generic products. Adoption of price controls and cost-containment measures, and adoption of more restrictive policies in jurisdictions with existing controls and measures, could
further limit our net revenue and results. Decreases in third-party reimbursement for our product candidate or a decision by a third-party payor to not cover our product candidate could reduce physician usage of the product candidate and have a
material adverse effect on our sales, results of operations and financial condition.

For example, the ACA, enacted in March 2010, has already had, and is
expected to continue to have, a significant impact on the health care industry. The ACA was designed to expand coverage for the uninsured while at the same time containing overall healthcare costs. With regard to biopharmaceutical products, among
other things, the ACA is expected to expand and increase industry rebates for drugs covered under Medicaid programs and make changes to the coverage requirements under the Medicare Part D program. We cannot predict the full impact of the ACA on
biopharmaceutical companies as many of the ACA reforms require the promulgation of detailed regulations implementing the statutory provisions which has not yet occurred.

In addition, other legislative changes have been proposed and adopted in the United States since the ACA was enacted. On August 2, 2011, the Budget
Control Act of 2011 among other things, created measures for spending reductions by Congress. The Joint Select Committee on Deficit Reduction was tasked with recommending to Congress proposals in spending reductions. Because they did not achieve a
targeted deficit reduction of at least $1.2 trillion for fiscal years 2012 through 2021, it triggered the legislations automatic reduction to several government



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programs. This includes aggregate reductions to Medicare payments to providers of up to 2% per fiscal year, which went into effect in April 2013 and will stay in effect through 2024 unless
additional Congressional action is taken. On January 2, 2013, President Obama signed into law the American Taxpayer Relief Act of 2012, or the ATRA, which delayed for another two months the budget cuts mandated by these sequestration provisions
of the Budget Control Act of 2011. The ATRA, among other things, also reduced Medicare payments to several providers, including hospitals, imaging centers and cancer treatment centers, and increased the statute of limitations period for the
government to recover overpayments to providers from three to five years. We expect that additional federal healthcare reform measures will be adopted in the future, any of which could limit the amounts that federal and state governments will pay
for healthcare products and services, and in turn could significantly reduce the projected value of certain development projects and reduce our profitability.

In addition, in some foreign countries, the proposed pricing for a drug must be approved before it may be lawfully marketed. The requirements governing drug
pricing vary widely from country to country. For example, the European Union provides options for its Member States to restrict the range of medicinal products for which their national health insurance systems provide reimbursement and to control
the prices of medicinal products for human use. A Member State may approve a specific price for the medicinal product or it may instead adopt a system of direct or indirect controls on the profitability of the company placing the medicinal product
on the market. For example, in France, effective access to the market assumes that our future products will be supported by the hospital (through an agreement for local communities) or reimbursed by social security. The price of medications is
negotiated with the Economic Committee for Health Products, or CEPS. There can be no assurance that any country that has price controls or reimbursement limitations for pharmaceutical products will allow favorable reimbursement and pricing
arrangements for any of our product candidates. Historically, products launched in the European Union do not follow price structures of the United States and generally tend to be significantly lower.

Other Healthcare Laws and Compliance Requirements

Our business operations in the United States and our arrangements with clinical investigators, healthcare providers, consultants, third-party payors and
patients may expose us to broadly applicable federal, state, and foreign fraud and abuse and other healthcare laws. These laws may impact, among other things, our research, proposed sales, marketing and education programs of our product candidates
that obtain marketing approval. The healthcare laws and regulations that may affect our ability to operate include, among others:



| |  |  | the federal Anti-Kickback Statute, which prohibits, among other things, persons from knowingly and willfully soliciting, receiving, offering or paying remuneration (including any kickback, bribe or rebate), directly or
indirectly, in cash or in kind, to induce or reward, or in return for, either the referral of an individual for, or the purchase, lease, order, or recommendation of, an item, good, facility or service reimbursable under a federal healthcare program,
such as the Medicare and Medicaid programs. Although there are a number of statutory exceptions and regulatory safe harbors protecting some common activities from prosecution, the exceptions and safe harbors are drawn narrowly. Practices that
involve remuneration that may be alleged to be intended to induce prescribing, purchases or recommendations may be subject to scrutiny if they do not qualify for an exception or safe harbor. Several courts have interpreted the statutes intent
requirement to mean that if any one purpose of an arrangement involving remuneration is to induce referrals of federal healthcare covered business, the Anti-Kickback Statute has been violated;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | federal civil and criminal false claims laws and civil monetary penalty laws, including the federal civil False Claims Act, which impose penalties and provide for civil whistleblower or qui tam actions against
individuals and entities for, among other things, knowingly presenting, or causing to be presented, claims for payment from Medicare, Medicaid, or other third-party payers that are false or fraudulent, or making a false statement or record material
to payment of a false claim or avoiding, decreasing, or concealing an obligation to pay money to the federal government, including for example, providing inaccurate billing or coding information to customers or promoting a product off-label;
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| |  |  | HIPAA, which created additional federal criminal statutes that prohibit knowingly and willfully executing or attempting to execute a scheme to defraud any healthcare benefit program, knowingly and willfully falsifying,
concealing or covering up a material fact or making false statements relating to healthcare matters, knowingly and willfully embezzling or stealing from a healthcare benefit program, or willfully obstructing a criminal investigation of a healthcare
offense;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the federal Physician Payments Sunshine Act, enacted as part of the ACA, which requires applicable manufacturers of covered drugs, devices, biologics and medical supplies for which payment is available under Medicare,
Medicaid or the Childrens Health Insurance Program, with specific exceptions, to track and annually report to CMS payments and other transfers of value provided to physicians and teaching hospitals and certain ownership and investment
interests held by physicians or their immediate family members in applicable manufacturers and group purchasing organizations;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | HIPAA, as amended by the HITECH Act, and its implementing regulations, which imposes certain requirements on covered entities and their business associates relating to the privacy, security and transmission of
individually identifiable health information; and
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | state law equivalents of each of the above federal laws, such as state anti-kickback and false claims laws which may apply to items or services reimbursed by any third-party payor, including commercial insurers, state
marketing and/or transparency laws applicable to manufacturers that may be broader in scope than the federal requirements, state laws that require biopharmaceutical companies to comply with the biopharmaceutical industrys voluntary compliance
guidelines and the relevant compliance guidance promulgated by the federal government, and state laws governing the privacy and security of health information in certain circumstances, many of which differ from each other in significant ways and may
not have the same effect as HIPAA, thus complicating compliance efforts.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

The ACA broadened the reach of the federal fraud and abuse laws
by, among other things, amending the intent requirement of the federal Anti-Kickback Statute and the applicable federal criminal healthcare fraud statutes. Pursuant to the statutory amendment, a person or entity no longer needs to have actual
knowledge of this statute or specific intent to violate it in order to have committed a violation. In addition, the ACA provides that the government may assert that a claim including items or services resulting from a violation of the federal
Anti-Kickback Statute constitutes a false or fraudulent claim for purposes of the civil False Claims Act or the civil monetary penalties statute.

Efforts
to ensure that our business arrangements with third parties will comply with applicable healthcare laws will involve substantial costs. It is possible that governmental authorities will conclude that our business practices may not comply with
current or future statutes, regulations or case law involving applicable fraud and abuse or other healthcare laws. If our operations are found to be in violation of any of these laws or any other governmental regulations that may apply to us, we may
be subject to significant administrative, civil, and/or criminal penalties, damages, fines, disgorgement, individual imprisonment, exclusion from government funded healthcare programs, such as Medicare and Medicaid, contractual damages, reputational
harm, diminished profits and future earnings, and the curtailment or restructuring of our operations. If the physicians or other healthcare providers or entities with whom we expect to do business are found to be not in compliance with applicable
laws, they may be subject to administrative, civil, and/or criminal sanctions, including exclusions from government funded healthcare programs.



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C. Organizational Structure.

The following diagram illustrates our corporate structure:



LOGO

D. Property, Plants and Equipment.

We relocated our corporate headquarters to Montrouge, France in January 2016. Our principal offices occupy a 4,770 square meter facility consisting of office
and laboratory space, pursuant to a lease agreement dated March 3, 2015, which expires on March 8, 2024. We made the decision to relocate to a larger facility to accommodate the growth of our company. We also have a second facility in
Bagneux, France, which was our former corporate headquarters. This facility consists of 1,479 square meters of office and laboratory space and is used by our industrial and production teams. This lease expires in May 31, 2020.

We also sublease approximately 3,913 square feet of office space in New York, New York, which serves as temporary office space for our U.S. subsidiary. The
sublease is for an initial period of 25 months and expires in June 1, 2017 and we expect to move into a more permanent facility in the New York area in the coming year.

Item 4A. Unresolved Staff Comments.

Not applicable.

Item 5.
Operating and Financial Review and Prospects.

Overview

We are a clinical-stage specialty biopharmaceutical company focused on changing the field of immunotherapy by developing a novel technology platform called
Viaskin. Our therapeutic approach is based on epicutaneous immunotherapy, or EPIT, our proprietary method of delivering biologically active compounds to the immune system through intact skin using Viaskin. We have generated significant data
demonstrating that Viaskins mechanism of action is novel and differentiated, as it targets specific antigen-presenting immune cells in the skin, called Langerhans cells, that capture the antigen and migrate to the lymph node in order to
activate the immune system without passage of the antigen into the bloodstream. We are advancing this unique technology to treat patients, including infants and children, suffering from severe food allergies, for whom safety is paramount, since the
introduction of the offending allergen into their bloodstream can cause severe or life-threatening allergic reactions, such an anaphylactic shock.

We
initially financed our operations through several private equity investments totaling 38.7 million. In 2012, we completed a 40.6 million initial public offering of our ordinary shares on Euronext Paris. In 2013, we completed a
29.9 million private investment in public equity, or PIPE, of which we received net proceeds of 15.1 million and our selling shareholders received net proceeds of 14.8 million. In 2014, we completed a
104.5 million global underwritten public offering of both ADSs on the Nasdaq Global Select Market, or Nasdaq, and ordinary shares on Euronext Paris, issuing an aggregate of 3,074 686 ordinary shares, from which we received net proceeds of
93.7 million. In July 2015, we completed a 255.3 million underwritten public offering of 4,140,000 ordinary shares in the form of 8,280,000 ADSs, from which we received net proceeds of 237.3 million. In connection with
our 2015 public offering, our share capital increased by 414 thousand with a corresponding increase of 236.9 million in our share premium.



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We have incurred net losses in each year since our inception. Substantially all of our net losses resulted from
costs incurred in connection with our development programs and from general and administration expenses associated with our operations.

We expect to
continue to incur significant expenses and increasing operating losses for the foreseeable future. We anticipate that our expenses will increase substantially in connection with our ongoing activities, as we:



| |  |  | continue the development of our product candidates, including planned and future clinical trials;
| | - |  | -------------------------------------------------------------------------------------------------



| |  |  | seek regulatory approvals for our product candidates;
| | - |  | -----------------------------------------------------



| |  |  | prepare for the potential launch and commercialization of our product candidates, if approved;
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| |  |  | establish a sales and marketing infrastructure for the commercialization of our product candidates, if approved; and
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| |  |  | add operational, financial and management information systems and personnel, including personnel to support our product development and commercialization efforts, as well as our operations as a U.S. public company.
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We do not expect to generate material revenue from product sales unless and until we successfully complete development of, and obtain
marketing approval for, one or more of our product candidates, which we expect will take a number of years and is subject to significant uncertainty. Until we can generate substantial revenue from product sales, if ever, we expect to finance our
operating activities through a combination of equity offerings, debt financings, government or other third-party funding and collaborations, and licensing arrangements. However, we may be unable to raise additional funds or enter into such
arrangements when needed on favorable terms, or at all, which would have a negative impact on our financial condition and could force us to delay, limit, reduce or terminate our development programs or commercialization efforts or grant to others
rights to develop or market product candidates that we would otherwise prefer to develop and market ourselves. Failure to receive additional funding could cause us to cease operations, in part or in full.

Our financial statements for 2013, 2014 and 2015 have been prepared in accordance with International Financial Reporting Standards, or IFRS, as issued by the
International Accounting Standards Board, or IASB.

Financial Operations Overview

Operating Income

Our operating
income consists of revenues and other income.

Revenues

We historically derive substantially all of our revenues from sales of Diallertest Milk, our diagnostic product for the detection of cows milk protein
allergy, or CMPA, in children, which was sold exclusively in France through a distribution partner. Sales of Diallertest Milk were moderate, totaling approximately 25,000 kits per year on average over the past three years. During the second half of
2015, we discontinued our commercial partnership with respect to the product and ceased selling Diallertest Milk. We do not expect to derive any revenues in 2016 from the sale of Diallertest Milk.



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Other Income

Government Assistance

Due to the
innovative nature of our product candidate development programs, we have benefited from a number of sources of assistance from the central French government or local public authorities, intended to finance our research and development efforts or the
recruitment of specific personnel. These funds are recognized as other income in our statement of income (loss) for the fiscal year that recorded the financed expenses or expenditures.

Research Tax Credits

The research tax
credit (crédit dimpôt recherche), or CIR, is granted to companies by the French tax authorities in order to encourage them to conduct technical and scientific research. Companies demonstrating that they have expenditures
that meet the required criteria, including research expenditures located in France or, since January 1, 2005, within the European Community or in another State that is a party to the Agreement on the European Economic Area that has concluded a
tax treaty with France that contains an administrative assistance clause, receive a tax credit which can be used against the payment of the corporate tax due on the fiscal year in which the expenditures were made and during the next three fiscal
years, or, as applicable, can be reimbursed for the excess portion. The expenditures taken into account for the calculation of the CIR only involve research expenses.

The main characteristics of the CIR are the following:



| |  |  | the CIR results in a cash inflow to us from the tax authorities, i.e., it is used to offset the payment of corporate tax or is paid directly to us for the portion that remains unused;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | a companys corporate income tax liability does not limit the amount of the CIR  a company that does not pay any corporate income tax can request direct cash payment of the research tax credit; and
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the CIR is not included in the determination of the corporate income tax.
| | - |  | -------------------------------------------------------------------------

As a result, we have concluded that
the CIR meets the definition of a government grant as defined in IAS 20 Accounting for Government Grants and Disclosure of Government Assistance and that the classification as other income within operating income in our statement of income (loss) is
appropriate.

We received the reimbursement of the CIR for the 2014 fiscal year in 2015. We have requested the reimbursement of the 2015 fiscal year CIR
under the applicable rules and expect to be reimbursed in 2016.

Cost of Goods Sold

Because we are not classified as a pharmaceutical laboratory, we historically contracted with a third party to manufacture our Diallertest Milk diagnostic
patches according to current good manufacturing practices, or cGMPs. The cost of goods sold therefore historically included the costs of manufacture we incur through this service provider. We discontinued sales of Diallertest Milk the second half of
2015.

Operating Expenses

Since inception, our operating expenses have consisted primarily of research and development activities, general and administration costs and sales and
marketing costs.



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Research and Development

We engage in substantial research and development efforts to develop innovative pharmaceutical product candidates. Research and development expense consists
primarily of:



| |  |  | cost of third-party contractors such as contract research organizations, or CROs, that conduct our non-clinical studies and clinical trials;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | personnel costs, including salaries, related benefits and share-based compensation, for our employees engaged in scientific research and development functions;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | purchases, real-estate leasing costs, as well as conferences and travel costs; and
| | - |  | ----------------------------------------------------------------------------------



| |  |  | depreciation, amortization and provisions.
| | - |  | ------------------------------------------

Our research and development expenses in the periods presented
mainly relate to the following activities:



| |  |  | Viaskin Peanut for the treatment of peanut allergies in children, adolescents and adults. We are currently enrolling patients four to 11 years of age in a pivotal Phase III trial called PEPITES (Peanut
EPIT Efficacy and Safety Study), which commenced in the fourth quarter of 2015.We completed a Phase IIb clinical trial of Viaskin Peanut called VIPES (Viaskin Peanuts Efficacy and Safety) in the third
quarter of 2014, which was followed by an open-label follow-up study called VIPES-OLFUS (Open-Label Follow-Up Study). VIPES-OLFUS is currently ongoing.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Viaskin Milk for the treatment of Immunoglobulin E, or IgE, mediated CMPA in children. We are currently enrolling patients in a Phase II, or Part B, clinical trial of Viaskin Milk in children called MILES
(Milk Efficacy and Safety). The trials Phase I, or Part A, was completed in the third quarter of 2015.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Scaling of the Viaskin technology. Our efforts to increase our production capacity to support the commercialization of Viaskin Peanut, if approved, are currently ongoing.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Our direct research and development expenses consist principally of external costs, such as startup fees paid to investigators, consultants, central
laboratories, and CROs in connection with our clinical studies, and costs related to acquiring and manufacturing clinical study materials. We do not allocate personnel-related costs, costs associated with our general platform improvements,
depreciation or other indirect costs to specific programs, as they are deployed across multiple projects under development and, as such, are separately classified as personnel and other expenses.

Research and development activities are central to our business. Product candidates in later stages of clinical development generally have higher development
costs than those in earlier stages of clinical development, primarily due to the increased size and duration of later-stage clinical trials. We expect that our research and development expenses will continue to increase in the foreseeable future as
we initiate clinical trials for certain product candidates and pursue later stages of clinical development of our product candidates, particularly our ongoing Phase III clinical trial of Viaskin Peanut.



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We cannot determine with certainty the duration and completion costs of the current or future clinical trials of
our product candidates or if, when, or to what extent we will generate revenue from the commercialization and sale of any of our product candidates that obtain regulatory approval. We may never succeed in achieving regulatory approval for any of our
product candidates. The duration, costs and timing of clinical trials and development of our product candidates will depend on a variety of factors, including:



| |  |  | the scope, rate of progress and expense of our ongoing as well as any additional non-clinical studies, clinical trials and other research and development activities;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | clinical trial and early-stage results;
| | - |  | ---------------------------------------



| |  |  | the terms and timing of regulatory approvals;
| | - |  | ---------------------------------------------



| |  |  | the expense of filing, prosecuting, defending and enforcing patent claims and other intellectual property rights; and
| | - |  | ---------------------------------------------------------------------------------------------------------------------



| |  |  | the ability to market, commercialize and achieve market acceptance for Viaskin Peanut or any other product candidate that we may develop in the future.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------

A change in the outcome of any of these variables with respect to the development of Viaskin Peanut or any other product candidate that we are developing
could mean a significant change in the costs and timing associated with the development of Viaskin Peanut or such other product candidate. For example, if the FDA or other regulatory authority were to require us to conduct pre-clinical and clinical
studies beyond those which we currently anticipate will be required for the completion of clinical development, or if we experience significant delays in enrollment in any clinical trials, we could be required to spend significant additional
financial resources and time on the completion of the clinical development.

General and Administration

General and administration expense consists primarily of personnel costs and share-based compensation for finance, legal and administrative staff. General and
administration expense also consists of fees for professional services, mainly related to audit, IT and legal services, real-estate leasing costs, insurance costs, investor relations costs and communication and travel costs.

We anticipate that our general and administration expenses will increase in the future as we increase our headcount to support the expected growth in our
research and development activities and the potential commercialization of our product candidates. We also anticipate continued increased expenses associated with being a public company in the United States, including with respect to compliance with
the Sarbanes-Oxley Act.

Sales and Marketing

Sales
and marketing expense consists primarily of personnel costs and share-based compensation for sales and marketing staff, as well as consulting fees and travel costs.

Finance Income (Expense)

Our cash and cash equivalents
have been deposited primarily in savings and deposit accounts with original maturities of three years or less, allowing the funds to be freely withdrawn at any time without notice or penalty. Savings and deposit accounts generate a modest amount of
interest income. We expect to continue this investment philosophy.



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Critical Accounting Policies and Estimates

Our financial statements are prepared in accordance with IFRS. Some of the accounting methods and policies used in preparing our financial statements under
IFRS are based on complex and subjective assessments by our management or on estimates based on past experience and assumptions deemed realistic and reasonable based on the circumstances concerned. The actual value of our assets, liabilities and
shareholders equity and of our earnings could differ from the value derived from these estimates if conditions changed and these changes had an impact on the assumptions adopted. We believe that the most significant management judgments and
assumptions in the preparation of our financial statements are described below. See Note 3 to our financial statements for a description of our other significant accounting policies.

Conditional Advances

OSEO Innovation

Since inception we have
received multiple interest-free conditional advances from OSEO Innovation, or OSEO, the French Agency for Innovation and part of the Banque Publique dInvestissement. OSEOs mission is to provide assistance and financial support to
emerging French enterprises by providing such enterprises with growth capital to facilitate the development and commercialization of innovative technologies. Each award of a conditional advance is made to help fund a specific development project.
See Note 11 to our audited consolidated financial statements for the years ended December 31, 2013, 2014 and 2015.

In the case of the conditional
advances from OSEO, our obligation to repay these amounts is based on the technical and commercial success of the funded project, as determined by OSEO in its sole and subjective discretion. Once a project has been selected for funding by OSEO, both
a payment and a repayment schedule are defined by contract. As the project advances, we provide OSEO with one or more interim progress reports and a final report when the funded project ends. Based on these reports, OSEO makes a subjective
determination, in its sole discretion, as to whether the project is a partial or total technical or commercial success, or a technical or commercial failure. In the event OSEO determines that the project is a failure, we are required by contract to
repay a minimum amount. In the event OSEO determines that the project is a partial success, there is a specified repayment schedule, provided that the parties may renegotiate a different repayment schedule in good faith. In the event OSEO determines
that the project is a complete success, we are obliged to repay 100% of the amount of the conditional advance.

In the case of each conditional advance,
we assume that OSEO will determine the project to be a total technical or commercial success and thus the maximum amount repayable with respect to such project will become due. However, actual results related to the development of these programs may
differ from these estimates in which case the financial liability reflected in our statement of financial statements for the conditional advances may be reduced. The current and non-current portions of the financial liability recognized in our
statement of financial statements associated with these conditional advances are determined based on the applicable reimbursement schedules at the end of each reporting period. The portion of the conditional advances for terms longer than one year
is classified as a non-current liability while the portion for terms of less than one year is classified as a current liability. In addition, in the case of each conditional advance, we treat the benefit resulting from the interest-free nature of
the award as a subsidy and recognize this amount as other income over the applicable repayment period. We determine the amount of this deemed subsidy amount by applying a discount rate equal to the rate of fungible treasury bonds over the time
period that corresponds to the time period of the repayment of the advances.

In addition to the conditional advances described above, since inception, we
have received one non-refundable subsidy from OSEO in connection with our development of our legacy house dust mite product candidate. We refer to this development program as the ImmunaVia project. We account for this non-refundable subsidy as other
income ratably over the duration of the funded project.



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French Export Credit Insurance Company

In September 2007, we entered into an agreement with the French Export Credit Insurance Company, or COFACE, to support the promotion of our Diallertest Milk
product internationally. COFACE offers and manages, on behalf and under the guarantee of the French State, public guarantees to support exportations and investments made by French companies abroad. Under the terms of this agreement, we must repay
these advances at up to 7% of the revenues from the export of our Diallertest Milk until April 30, 2017. To date, our export revenues for Diallertest Milk have been modest. During the second half of 2015, we discontinued our commercial
partnership with respect to the product and ceased selling Diallertest Milk. We do not expect to derive any 2016 revenues from the sale of Diallertest Milk.

Share-Based Compensation

We have
various share-based compensation plans for employees and non-employees. We account for share-based compensation in accordance with the authoritative guidance on share-based compensation. Under the fair value recognition provisions of this guidance,
share-based compensation is measured at the grant date based on the fair value of the award and is recognized as expense, net of estimated forfeitures, over the requisite service period, which is generally the vesting period of the respective award.

Determining the fair value of share-based awards at the grant date requires judgment. We use the Black-Scholes option-pricing model to determine the fair
value of share options. The determination of the grant date fair value of options using an option-pricing model is affected by assumptions regarding a number of complex and subjective variables. These variables include the expected term of the
options, our share price volatility, risk-free interest rates, and expected dividends, which are estimated as follows:

Fair Value of
Our Ordinary Shares. We established a policy of using the closing sales price per ordinary share as quoted on Euronext Paris on the date prior to the date of grant for purposes of determining the fair value of ordinary shares with a floor value
of 95% of the average of the closing sales price per ordinary share for the 20 trading days preceding the grant.

Expected Term.
The expected term represents the period that our share-based awards are expected to be outstanding. As we do not have sufficient historical experience for determining the expected term of the share option awards granted, we have based our expected
term on the simplified method, which represents the average period from vesting to the expiration of the award.

Expected Volatility.We are using our volatility on Euronext Paris observed on a sufficient historical dataset.

Risk-Free Interest Rate. The
risk-free interest rate is based on the yields of French government bonds with maturities similar to the expected term of the options for each option group.

Dividend Yield. We have never declared or paid any cash dividends and do not presently plan to pay cash dividends in the foreseeable
future. Consequently, we used an expected dividend yield of zero.

If any of the assumptions used in the Black-Scholes model changes significantly,
share-based compensation for future awards may differ materially compared with the awards granted previously.



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The following table presents the weighted-average assumptions used to estimate the fair value of options granted
during the periods presented:



|                         |  |             |  |             |  |            
|------------------------ |  | ----------- |  | ----------- |  | -----------
|                         |  | December 31
|                         |  | 2013        |  | 2014        |  | 2015       
|Volatility               |  | 40%         |  | 40%         |  | 40%        
|Risk free interest rate  |  | 1.16%-1.72% |  | 0.71%-0.89% |  | 0.79%-0.81%
|Expected life (in years) |  | 7.0         |  | 5.0-6.0     |  | 7.0        
|Dividend yield           |  |            |  |            |  |           

For 2013, 2014 and 2015, we recorded employee share-based compensation expense of 5.0 million,
4.6 million and 10.4 million, respectively.



|A. | Operating Results
|-- | -----------------

Comparison for the Years Ended December 31, 2013 and 2014

Operating Income

We
generated operating income of 3.8 million in 2013 and 4.8 million in 2014, an increase of 24.4%. These incomes were mainly generated by our CIR, and more marginally, by Diallertest Milk sales, and by subsidies received for
research projects conducted by us.



|              |  |                                 |       |  |      |  |       | 
|------------- |  | ------------------------------- | ----- |  | ---- |  | ----- | 
|              |  | December 31,                    |      
|              |  | 2013                            |       |  | 2014 | 
|              |  | (Amounts in thousands of Euros) |      
|Revenues      |  |                                 | 182   |  |      |  | 211   | 
|Other income  |  |                                 | 3,644 |  |      |  | 4,551 | 
|o/w CIR       |  |                                 | 3,312 |  |      |  | 4,340 | 
|o/w subsidies |  |                                 | 332   |  |      |  | 211   | 
|Total income  |  |                                 | 3,826 |  |      |  | 4,762 | 
|              |  |                                 |       |  |      |  |       | 

As no research and development expenditure is capitalized before obtaining a marketing authorization, the CIR related to such
research programs is entirely recorded as operating income. The grants we received during the period were deducted from the calculation of the CIR base.

For the year ended December 31, 2014, we recorded other income related to CIR of 4.3 million, which we received reimbursement in 2015. In
2014, we received the reimbursement of 3.3 million for the 2013 CIR under the community small and medium business scheme.

The increase of
1.0 million, or 31.0%, in the CIR recorded in 2014 reflects the acceleration of our various development programs in 2014.

The revenues
generated by Diallertest Milk, which was only marketed in France through a distributor, increased by 15.9% during the last financial year, from 181,800 in 2013 to 210,759 in 2014.



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Cost of Goods Sold

Because we are not classified as a pharmaceutical laboratory, we contracted with a third party to manufacture our Diallertest Milk diagnostic patches according
to the cGMP. The cost of goods sold therefore includes the costs of manufacture through this service provider. The cost of goods represented 56.3% and 64.7% of our sales revenues in 2013 and 2014, respectively.



|                   |  |                                 |     |  |      |  |     | 
|------------------ |  | ------------------------------- | --- |  | ---- |  | --- | 
|                   |  | December 31,                    |    
|                   |  | 2013                            |     |  | 2014 | 
|                   |  | (Amounts in thousands of Euros) |    
|Cost of goods sold |  |                                 | 102 |  |      |  | 136 | 
|                   |  |                                 |     |  |      |  |     | 

Research and Development Expenditures

From 2013 to 2014, the total amount spent by us for research and development activity increased from 17.4 million to
21.1 million, or an increase of 21.7%.

Our direct research and development expenses consist principally of external costs, such as startup
fees paid to investigators, consultants, central laboratories and CROs in connection with our clinical studies, and costs related to acquiring and manufacturing clinical study materials. We do not allocate personnel-related costs, costs associated
with our general platform improvements, depreciation or other indirect costs to specific programs, as they are deployed across multiple projects under development and, as such, are separately classified as personnel and other expenses as described
in the table below:



|                                               |  |                                 |        |  |      |  |        | 
|---------------------------------------------- |  | ------------------------------- | ------ |  | ---- |  | ------ | 
|                                               |  | December 31,                    |       
|                                               |  | 2013                            |        |  | 2014 | 
|                                               |  | (Amounts in thousands of Euros) |       
|Viaskin Peanut                                 |  |                                 | 6,503  |  |      |  | 6,398  | 
|Viaskin Milk                                   |  |                                 | 958    |  |      |  | 2,555  | 
|Total direct research and development expenses |  |                                 | 7,461  |  |      |  | 8,953  | 
|                                               |  |                                 |        |  |      |  |        | 
|Personnel expenses                             |  |                                 | 7,195  |  |      |  | 7,703  | 
|Other Viaskin- & EPIT-related expenses         |  |                                 | 1,691  |  |      |  | 3,100  | 
|Facility expenses                              |  |                                 | 263    |  |      |  | 255    | 
|Conferences, travel expenses                   |  |                                 | 466    |  |      |  | 665    | 
|Depreciation, amortization and provisions      |  |                                 | 290    |  |      |  | 466    | 
|Personnel and other expenses                   |  |                                 | 9,905  |  |      |  | 12,160 | 
|                                               |  |                                 |        |  |      |  |        | 
|Total R&D expenses                             |  |                                 | 17,367 |  |      |  | 21,143 | 
|                                               |  |                                 |        |  |      |  |        | 

The increased expenditures from year to year resulted from the costs associated with both the VIPES Phase IIb and OLFUS-VIPES
follow up trials of the Viaskin Peanut, the MILES Phase I/II trial of the Viaskin Milk initiated, as well as a substantial strengthening of research and development teams due to the increasing number of active programs.

In particular, we incurred:



| |  |  | an increase of 7.1% in total payroll associated with research and development, resulting from an increase in staff from 33 employees at the end of 2013 to 42 employees at the end of 2014, partly offset by a decrease in
share-based compensation expense in 2014;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | an increase of 30.3% in subcontracting and collaboration costs, which includes the costs of service providers for the management our clinical trials, including VIPES, OLFUS-VIPES and MILES;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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| |  |  | an increase of 42.8% in travel expenses, which is in line with the increase in our research and development staff; and
| | - |  | ----------------------------------------------------------------------------------------------------------------------



| |  |  | an increase of 60.5% in depreciation, amortization and provisions, reflecting our increased investment in capital equipment.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------

General and Administration Expenses

During the period presented, our general and administration expenses increased from 6.3 million to 8.1 million, or an increase of 28.7%.

Our general and administration expenses break down as follows:



|                                                     |  |                                 |       |  |      |  |       | 
|---------------------------------------------------- |  | ------------------------------- | ----- |  | ---- |  | ----- | 
|                                                     |  | December 31,                    |      
|                                                     |  | 2013                            |       |  | 2014 | 
|                                                     |  | (Amounts in thousands of Euros) |      
|Personnel expenses                                   |  |                                 | 4,699 |  |      |  | 5,109 | 
|Fees                                                 |  |                                 | 587   |  |      |  | 1,166 | 
|Real estate leasing                                  |  |                                 | 111   |  |      |  | 204   | 
|Insurance                                            |  |                                 | 105   |  |      |  | 230   | 
|Communication and travel expenses                    |  |                                 | 451   |  |      |  | 645   | 
|Telecommunication expenses                           |  |                                 | 65    |  |      |  | 76    | 
|Administrative costs and rental of personal property |  |                                 | 97    |  |      |  | 104   | 
|Other                                                |  |                                 | 195   |  |      |  | 583   | 
|Total G&A expenses                                   |  |                                 | 6,310 |  |      |  | 8,118 | 
|                                                     |  |                                 |       |  |      |  |       | 



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The increase of 1.8 million in general and administration expenses was primarily due to:



| |  |  | an increase of 8.7% in total payroll dedicated to administration and management, resulting from an increase in staff from 11 employees at the end of 2013 to 14 employees at the end of 2014, partly offset by a decrease
in share-based compensation expense in 2014;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | an increase of 98.8% in fees, mainly due to higher audit, consulting and legal services expenses generated by our Nasdaq listing;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------



| |  |  | an increase of 43.1% in communication and travel expenses, mainly due to our Nasdaq listing and improving our investor outreach in the U.S.; and
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | an increase of 119.5% in insurance costs due to contracting a Directors and Officers (D&O) liability insurance policy in the context of our Nasdaq listing.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------

Sales & Marketing Expenses

Sales and marketing expenses were immaterial for the years ended December 31, 2013 and 2014.

Financial Profit (Loss)

Our net
financial profit decreased to 0.62 million in 2014 from 0.64 million in 2013, a decrease of 3.4%. The change in our financial profit in 2014 is mainly explained by the cash investment income we received, notably as part of
capital increases completed in November 2013 and in October 2014, the financial revenues having increased from 0.67 million in 2013 to 0.73 million in 2014. This was partly offset by a net foreign exchange loss of
0.02 million, compared to a net gain of 0.01 million in 2013.

Comparisons for the Years Ended
December 31, 2014 and 2015

Operating Income

We generated operating income of 4.8 million in 2014 and 6.2 million in 2015, an increase of 29.5%. These incomes were mainly generated
by our CIR, and more marginally by Diallertest Milk sales, and by subsidies received for research projects conducted by us.



|              |  |                                 |       |  |      |  |       | 
|------------- |  | ------------------------------- | ----- |  | ---- |  | ----- | 
|              |  | December 31,                    |      
|              |  | 2014                            |       |  | 2015 | 
|              |  | (Amounts in thousands of Euros) |      
|Revenues      |  |                                 | 211   |  |      |  | 202   | 
|Other income  |  |                                 | 4,551 |  |      |  | 5,964 | 
|o/w CIR       |  |                                 | 4,340 |  |      |  | 5,685 | 
|o/w subsidies |  |                                 | 211   |  |      |  | 279   | 
|Total income  |  |                                 | 4,762 |  |      |  | 6,166 | 
|              |  |                                 |       |  |      |  |       | 

As no research and development expenditure is capitalized before obtaining a marketing authorization, the CIR related to such
research programs is entirely recorded as operating income. The grants we received during the period were deducted from the calculation of the CIR base.

For the year ended December 31, 2015, we recorded other income related to CIR of 5.7 million, which we requested for reimbursement in 2016. In
2015, we received the reimbursement of 4.3 million for the 2014 CIR under the community small and medium business scheme.

The increase of
1.3 million, or 31.0%, in the CIR recorded in 2015 reflects the acceleration of our various development programs in 2015.

The revenues
generated by Diallertest Milk, which was only marketed in France through a distributor, decreased by 4.1% during the last financial year, from 211 thousand in 2014 to 202 thousand in 2015. During the second half of 2015, we
discontinued our commercial partnership with respect to the product and ceased selling Diallertest Milk.



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Cost of Goods Sold

Because we are not classified as a pharmaceutical laboratory, we contracted with a third party to manufacture our Diallertest Milk diagnostic patches according
to the cGMP. The cost of goods sold therefore includes the costs of manufacture through this service provider. The cost of goods represented 64.7% and 63.3% of our sales revenues in 2014 and 2015, respectively.



|                   |  |                                 |     |  |      |  |     | 
|------------------ |  | ------------------------------- | --- |  | ---- |  | --- | 
|                   |  | December 31,                    |    
|                   |  | 2014                            |     |  | 2015 | 
|                   |  | (Amounts in thousands of Euros) |    
|Cost of goods sold |  |                                 | 136 |  |      |  | 128 | 
|                   |  |                                 |     |  |      |  |     | 

Research and Development Expenditures

From 2014 to 2015, the total amount spent by us for research and development activity increased from 21.1 million to
34.2 million, or an increase of 61.9%.

Our direct research and development expenses consist principally of external costs,
such as startup fees paid to investigators, consultants, central laboratories and CROs in connection with our clinical studies, and costs related to acquiring and manufacturing clinical study materials.



|                                                            |  |                                 |        |  |      |  |        | 
|----------------------------------------------------------- |  | ------------------------------- | ------ |  | ---- |  | ------ | 
|                                                            |  | December 31,                    |       
|                                                            |  | 2014                            |        |  | 2015 | 
|                                                            |  | (Amounts in thousands of Euros) |       
|Personnel expenses                                          |  |                                 | 7,703  |  |      |  | 13,268 | 
|Sub-contracting, collaboration and consultants              |  |                                 | 10,703 |  |      |  | 15,325 | 
|Research supplies                                           |  |                                 | 937    |  |      |  | 911    | 
|Purchases                                                   |  |                                 | 249    |  |      |  | 795    | 
|Real estate property rental                                 |  |                                 | 255    |  |      |  | 1,094  | 
|Conferences and travel expenses                             |  |                                 | 665    |  |      |  | 1,233  | 
|Allowances for provisions and amortization and depreciation |  |                                 | 466    |  |      |  | 1,000  | 
|Others                                                      |  |                                 | 165    |  |      |  | 608    | 
|Total R&D expenses                                          |  |                                 | 21,143 |  |      |  | 34,234 | 
|                                                            |  |                                 |        |  |      |  |        | 

The increased expenditures from year to year resulted from the costs associated with both the PEPITES Phase III and
OLFUS-VIPES trials of Viaskin Peanut, which were being conducted simultaneously in 2015, the ongoing MILES Phase I/II trial of the Viaskin Milk initiated in November 2014, as well as a substantial increase in research and development personnel in
order to support our increasing numbers of active development programs.

In particular, we have incurred:



| |  |  | an increase of 72% in total payroll associated with research and development resulting from both an increase in staff from 42 employees at the end of 2014 to 72 employees at the end of 2015, and from an increase in
share-based compensation expense in 2015;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | an increase of 43% in subcontracting and collaboration costs, which includes the costs of service providers for the management our clinical trials, including PEPITES, OLFUS-VIPES and MILES;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | an increase of 329% in lease expenses as a result of the signing of a lease extension for our offices in Bagneux (France) in December 2014 and a new lease signed in March 2015 for our new headquarters in Montrouge
(France);
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | an increase of 114% in depreciation, amortization and provisions reflecting our increased investment in equipment to conduct our clinical trials.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------

General and Administration Expenses

During the period presented, our general and administration expenses increased from 8.1 million to 16.9 million, or an increase of 108%.



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Our general and administration expenses are as follows:



|                                                            |  |                                 |       |  |      |  |        | 
|----------------------------------------------------------- |  | ------------------------------- | ----- |  | ---- |  | ------ | 
|                                                            |  | December 31,                    |      
|                                                            |  | 2014                            |       |  | 2015 | 
|                                                            |  | (Amounts in thousands of Euros) |      
|Personnel expenses                                          |  |                                 | 5,109 |  |      |  | 8,768  | 
|Fees                                                        |  |                                 | 1,166 |  |      |  | 4,234  | 
|Real estate property rental                                 |  |                                 | 204   |  |      |  | 305    | 
|Maintenance                                                 |  |                                 | 140   |  |      |  | 356    | 
|Insurance policies                                          |  |                                 | 230   |  |      |  | 1,239  | 
|Communication and travel expenses                           |  |                                 | 633   |  |      |  | 1,010  | 
|Postal and telecommunications expenses                      |  |                                 | 76    |  |      |  | 36     | 
|Administrative supplies and rentals of personal property    |  |                                 | 104   |  |      |  | 162    | 
|Allowances for provisions and amortization and depreciation |  |                                 | 111   |  |      |  | 74     | 
|Others                                                      |  |                                 | 332   |  |      |  | 676    | 
|Total G&A expenses                                          |  |                                 | 8,105 |  |      |  | 16,859 | 
|                                                            |  |                                 |       |  |      |  |        | 

The increase of 8.8 million in general and administration expenses was primarily due to:



| |  |  | an increase of 72% in total payroll dedicated to administration and management, resulting from both an increase in staff from 14 employees at the end of 2014 to 18 employees at the end of 2015 as well as an increase in
share-based compensation expense in 2015;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | an increase of 263% in fees, mainly due to an increased level of audits, consulting and legal services expenses generated by our listing on Nasdaq and compliance with the Sarbanes-Oxley Act;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | an increase of 60% in expenses related to supporting our corporate communications and investor relations efforts, including travel and Nasdaq listing expenses; and
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | an increase of 438% in insurance due to contracting a Directors and Officers D&O insurance policy in the context of being listed on Nasdaq.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------

Sales & Marketing Expenses

During the second half of 2015, we hired our first employees to support the launch and commercialization of Viaskin Peanut in North America, if approved.



|                                  |  |                                 |    |  |      |  |     | 
|--------------------------------- |  | ------------------------------- | -- |  | ---- |  | --- | 
|                                  |  | December 31,                    |   
|                                  |  | 2014                            |    |  | 2015 | 
|                                  |  | (Amounts in thousands of Euros) |   
|Personnel expenses                |  |                                 |   |  |      |  | 133 | 
|Fees                              |  |                                 |   |  |      |  | 339 | 
|Communication and travel expenses |  |                                 | 13 |  |      |  | 20  | 
|Total S&M expenses                |  |                                 | 13 |  |      |  | 491 | 
|                                  |  |                                 |    |  |      |  |     | 

Financial Profit (Loss)

Our net financial profit increased to 0.9 million in 2015 from 0.6 million in 2014, a decrease of 39.6%. The change in our financial
profit in 2015 is mainly explained by the cash investment income we received, notably as part of capital increases completed in October 2014 and July 2015, the financial revenues having increased from 0.7 million in 2014 to
1.0 million in 2015.



|B. | Liquidity and Capital Resources
|-- | -------------------------------

We have financed our operations since inception through several private
placements of equity securities totaling 38.7 million, a 40.6 million initial public offering of our ordinary shares on Euronext Paris in 2012, a 29.9 million PIPE in 2013, of which we received net proceeds of
15.1 million and our shareholders received net proceeds of 14.8 million, and a 104.5 million global



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offering of both ADSs on Nasdaq and ordinary shares on Euronext Paris, of which we received net proceeds of 93.7 million. In July 2015, we completed a 255.3 million
underwritten public offering of 4,140,000 ordinary shares in the form of 8,280,000 ADSs from which we received net proceeds of 237.3 million. In connection with our 2015 public offering, our share capital increased by 414 thousand
with a corresponding increase of 236.9 million in our share premium.

The table below summarizes our sources and uses of cash
for the years ended December 31, 2013, 2014 and 2015.



|                                            |  |                                 |         |   |      |  |         |      |  |  |         |  
|------------------------------------------- |  | ------------------------------- | ------- | - | ---- |  | ------- | ---- |  |  | ------- | -
|                                            |  | December 31,                    |        
|                                            |  | 2013                            |         |   | 2014 |  |         | 2015 | 
|                                            |  | (Amounts in thousands of Euros) |        
|Cash used in operating activities           |  |                                 | (13,253 | ) |      |  | (20,560 | )    |  |  | (26,763 | )
|Cash used in investing activities           |  |                                 | (1,408  | ) |      |  | (1,096  | )    |  |  | (5,347  | )
|Cash flows provided by financing activities |  |                                 | 16,236  |   |      |  | 96,808  |      |  |  | 241,014 |  
|Net increase in cash and cash equivalents   |  |                                 | 1,574   |   |      |  | 75,152  |      |  |  | 208,904 |  

Our net cash flows used in operational activities was at 26.8 million, 20.6 million and
13.3 million for 2015, 2014 and 2013, respectively.

During 2013, our net cash flows used in operating activities increased due to our
increasing efforts in advancing our research and development programs, mainly Viaskin Peanut, which progressed through a Phase IIb clinical trial in this period. This increase was partially offset by a positive change in working capital of
574,252 over the period.

During 2014, our net cash flows used in operating activities increased due to further advances in our research and
development programs, mainly due to the completion of our Phase IIb clinical trial of Viaskin Peanut, as well as the continuation into the studys open-label extension trial. Further development of Viaskin Milk also contributed to the cash flow
increase in this period.

During 2015, our net cash flows used in operating activities increased due to our advances in our research and development
programs, mainly Viaskin Peanut, which progressed into a Phase III clinical trial during this period, continuation of the OLFUS-VIPES trial, and continuation of the MILES trial. This increase was partially offset by a positive change in working
capital of 6.0 million over the period.

Our net cash flows used in investing activities stood at 1.4 million,
1.1 million and 5.3 million in 2013, 2014 and 2015, respectively.

The cash used in investing activities in 2013 and 2014 reflects
the acquisition of industrial and laboratory equipment required to conduct our development programs, as well as the refurbishment of our research and development premises. The increase in 2015 resulted from the relocation of our headquarters to
Montrouge (France), as well as purchasing materials for designing manufacturing tools for our product candidates.

Our net cash flows resulting from
financing activities increased to 241.0 million in 2015 from 96.8 million in 2014 and from 16.2 million in 2013, mainly as a result of our underwritten public offerings in each of 2015 and 2014.

Consistent with customary practice in the French securities market, we entered into a liquidity agreement (contrat de liquidité) with Natixis on
April 13, 2012. The liquidity agreement complies with applicable laws and regulations in France. The liquidity agreement authorizes Natixis to carry out market purchases and sales of our shares on Euronext Paris. As of December 31, 2015,
we have contributed an aggregate of 1.4 million to the liquidity account. The amount is classified in other non-current financial assets in our statement of financial position. At December 31, 2015, 3,898 shares and
1.4 million were in the liquidity account. The liquidity agreement has a term of one year and will renew automatically unless otherwise terminated by either party.



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Cash and Funding Sources

During 2013, 2014 and 2015, we obtained new financing on the public markets by issuance of securities.



|      |  |                                 |         |  |           |  |   |            |  |  |       |  |  |  |         | 
|----- |  | ------------------------------- | ------- |  | --------- |  | - | ---------- |  |  | ----- |  |  |  | ------- | 
|      |  | Equity capital                  |         |  | BankLoans |  |   | Other debt |  |  | Total | 
|      |  | (Amounts in thousands of Euros) |        
|2013  |  |                                 | 15,129  |  |           |  |  |            |  |  | 1,159 |  |  |  | 16,288  | 
|2014  |  |                                 | 93,711  |  |           |  |  |            |  |  | 3,128 |  |  |  | 96,839  | 
|2015  |  |                                 | 237,323 |  |           |  |  |            |  |  | 865   |  |  |  | 238,188 | 
|Total |  |                                 | 346,163 |  |           |  |  |            |  |  | 5,152 |  |  |  | 351,315 | 

We have incurred net losses each year since our inception. Substantially all of our net losses resulted from costs incurred in
connection with our development programs and from general and administrative expenses associated with our operations.

We have not incurred any bank debt.
Other debt is comprised of conditional advances which are detailed as follows.

As of December 31, 2015, we benefited from multiple conditional
advances from OSEO, which advances do not accrue interest and are repayable at 100% in the event of technical and/or commercial success of our product, as determined solely and subjectively by OSEO, a non-refundable subsidy from OSEO, a conditional
advance from COFACE and an interest-free loan by Bpifrance.



| |  |  | 2nd OSEO advance: On January 10, 2005, we obtained a conditional advance of 600,000 from OSEO for a project to design a high-speed prototype machine to
produce patches and to develop second-generation patches in particular intended for the detection of various allergies. The entire sum had been received as of December 31, 2010. The repayment of this grant was made in accordance with the
initial schedule, with the final repayment made on April 2, 2013.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | 3rd OSEO advance: In 2011, we obtained a conditional advance by OSEO for a total amount of 640,000 to finance the development of our programs to treat CMPA.
This amount has been fully received, with a first payment of 256,000 in December 2011, a second payment of 256,000 in June 2013 and remaining 128,000 balance paid in January 2014. If the program is deemed to be technically or
commercially successful, as determined by OSEO in its sole and subjective discretion it will be repaid in 16 quarterly installments defined as follows: four payments of 64,000 starting on September 30, 2014, then 12 payments of
32,000 starting on September 30, 2015, until June 30, 2018. If this project is deemed to be a technical failure, we will still be obligated to repay OSEO the amount of 256,000.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | 4th OSEO advance: In 2013, we obtained a conditional advance by OSEO for a total amount of 3.2 million in the context of a research and clinical
development collaborative project in the field of house dust mites allergies in young children. We refer to this development program as the ImmunaVia project. 903,500 was received in April 2013, 864,989 was received in January 2015,
918,000 is expected as from October 2015 and 481,162 is expected in April 2018. Unless OSEO deems our company to be a commercial failure, we will reimburse 400,000 no later than June 30, 2021, 800,000 no later than
June 30, 2022, 1.1 million no later than June 30, 2023 and 1.5 million no later than June 30, 2024. In addition, we received from OSEO a total of 1,919,056 in the form of a non-refundable subsidy.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | COFACE advance: On September 6, 2007, we signed a prospecting insurance contract with COFACE in order to promote our Diallertest Milk internationally. For this purpose, we received conditional advances of
147,534. We must repay these advances at up to 7% of the revenues from the export of our Diallertest Milk until April 30, 2017. Since Diallertest Milk has been reclassified from a medical device to a drug product by the relevant French
authorities, we may only market it for export after we complete a Phase III marketing authorization study in accordance with the regulations in France applicable to the marketing of drug products.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Bpifrance interest-free loan: In 2014, we obtained an interest-free loan from BPifrance Financement in the amount of 3.0 million to support the pharmaceutical development of Viaskin Milk. This assistance was
received in a single disbursement in November 2014.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

The activity for the conditional advances recorded during 2013, 2014 and 2015 is
summarized in the table below:



|                           |  |                                 |      |   |                 |  |      |                 |  |  |                              |   |  |        |       |   |       |  |     |  |  |  |         |  
|-------------------------- |  | ------------------------------- | ---- | - | --------------- |  | ---- | --------------- |  |  | ---------------------------- | - |  | ------ | ----- | - | ----- |  | --- |  |  |  | ------- | -
|                           |  | 2nd OSEOadvance                 |      |   | 3rd OSEOadvance |  |      | 4th OSEOadvance |  |  | Bpi Franceinterest-free loan |   |  | COFACE |       |   | Total | 
|                           |  | (Amounts in thousands of Euros) |     
|Balance debt at 01/01/2013 |  |                                 | 257  |   |                 |  | 250  |                 |  |  |                             |   |  |        |      |   |       |  | 127 |  |  |  | 634     |  
|+ receipts                 |  |                                 |     |   |                 |  | 256  |                 |  |  | 903.5                        |   |  |        |      |   |       |  |    |  |  |  | 1,159.5 |  
|- repayments               |  |                                 | (260 | ) |                 |  |     |                 |  |  |                             |   |  |        |      |   |       |  |    |  |  |  | (260    | )
|+/- other transactions(1)  |  |                                 | 3    |   |                 |  | (2   | )               |  |  | (111                         | ) |  |        |      |   |       |  | 19  |  |  |  | (91     | )
|Balance debt at 12/31/2013 |  |                                 |     |   |                 |  | 504  |                 |  |  | 792                          |   |  |        |      |   |       |  | 146 |  |  |  | 1,443   |  
|+ receipts                 |  |                                 |     |   |                 |  | 128  |                 |  |  |                             |   |  |        | 3,000 |   |       |  |    |  |  |  | 3,128   |  
|- repayments               |  |                                 |     |   |                 |  | (128 | )               |  |  |                             |   |  |        |      |   |       |  |    |  |  |  | (128    | )
|+/- other transactions(1)  |  |                                 |     |   |                 |  | 2    |                 |  |  | 13                           |   |  |        | (416  | ) |       |  | 5   |  |  |  | (396    | )
|Balance debt at 12/31/2014 |  |                                 |     |   |                 |  | 506  |                 |  |  | 805                          |   |  |        | 2,584 |   |       |  | 151 |  |  |  | 4,047   |  
|+ receipts                 |  |                                 |     |   |                 |  |     |                 |  |  | 865                          |   |  |        |      |   |       |  |    |  |  |  | 865     |  
|- repayments               |  |                                 |     |   |                 |  | (192 | )               |  |  |                             |   |  |        |      |   |       |  |    |  |  |  | (192    | )
|+/- other transactions(1)  |  |                                 |     |   |                 |  | 3    |                 |  |  | (2                           | ) |  |        | 82    |   |       |  | 5   |  |  |  | 89      |  
|Balance debt at 12/31/2015 |  |                                 |     |   |                 |  | 318  |                 |  |  | 1,669                        |   |  |        | 2,666 |   |       |  | 156 |  |  |  | 4,809   |  



|(1) | The changes in other transactions are comprised of the effect of discontinuing conditional advances.
|--- | ------------------------------------------------------------------------------------------------------



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Operating Capital Requirements

We believe that our existing cash and cash equivalents will enable us to fund our operating expenses and capital expenditure requirements until the end of
2017. We have based this estimate on assumptions that may prove to be wrong, and we could use our capital resources sooner than we currently expect. In any event, we will require additional capital to pursue pre-clinical and clinical activities,
obtain regulatory approval for, and to commercialize our product candidates.

Until we can generate a sufficient amount of revenue from our product
candidates, if ever, we expect to finance our operating activities through a combination of equity offerings, debt financings, government or other third-party funding and collaborations. Additional capital may not be available on reasonable terms,
if at all. If we are unable to raise additional capital in sufficient amounts or on terms acceptable to us, we may have to significantly delay, scale back or discontinue the development or commercialization of one or more of our product candidates.
If we raise additional funds through the issuance of additional debt or equity securities, it could result in dilution to our existing shareholders, increased fixed payment obligations and these securities may have rights senior to those of our
ordinary shares. If we incur indebtedness, we could become subject to covenants that would restrict our operations and potentially impair our competitiveness, such as limitations on our ability to incur additional debt, limitations on our ability to
acquire, sell or license intellectual property rights and other operating restrictions that could adversely impact our ability to conduct our business. Any of these events could significantly harm our business, financial condition and prospects.

Our present and future funding requirements will depend on many factors, including, among other things:



| |  |  | the size, progress, timing and completion of our clinical trials for any current or future product candidates, including Viaskin Peanut;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the number of potential new product candidates we identify and decide to develop;
| | - |  | ---------------------------------------------------------------------------------



| |  |  | the costs involved in filing patent applications and maintaining and enforcing patents or defending against claims or infringements raised by third parties;
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the time and costs involved in obtaining regulatory approval for our product candidates and any delays we may encounter as a result of evolving regulatory requirements or adverse results with respect to any of these
product candiates;
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | selling and marketing activities undertaken in connection with the anticipated commercialization of the Viaskin Peanut product candidate and any other current or future compounds and costs involved in the creation of an
effective sales and marketing organization; and
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the amount of revenues, if any, we may derive either directly or in the form of royalty payments from future potential partnership agreements on the Viaskin platform.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------

For more information as to the risks associated with our future funding needs, see the section entitled Item 3.DRisk Factors.



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Capital Expenditures

As all the clinical research and development expenditures are posted to the accounts as expenses until marketing authorizations are obtained, the principal
investments made over 2013, 2014 and 2015 have been related primarily to the acquisition of laboratory equipment and, secondarily, to the acquisition of computer and office equipment.



|                               |  |                                 |       |  |      |  |       |      |  |  |       | 
|------------------------------ |  | ------------------------------- | ----- |  | ---- |  | ----- | ---- |  |  | ----- | 
|                               |  | December 31,                    |      
|                               |  | 2013                            |       |  | 2014 |  |       | 2015 | 
|                               |  | (Amounts in thousands of Euros) |      
|Long-term intangible assets    |  |                                 | 81    |  |      |  | 31    |      |  |  | 148   | 
|Property, plant, and equipment |  |                                 | 1,090 |  |      |  | 941   |      |  |  | 4,360 | 
|Long-term financial assets     |  |                                 | 237   |  |      |  | 124   |      |  |  | 839   | 
|Total                          |  |                                 | 1,408 |  |      |  | 1,096 |      |  |  | 5,347 | 

In 2013, we purchased tools and equipment for the design, the development and manufacturing of industrial prototypes and tools
for 0.4 million and continued to expand and refurbish our research and industrial development laboratories at a cost of 0.3 million, of which 0.19 million was spent on the acquisition of laboratory equipment and
0.15 million was spent on the acquisition of computers and office equipment.

In 2014, we purchased tools and equipment for the design, the
development and manufacturing of industrial prototypes and tools for 0.6 million and we spent 0.3 million on the acquisition of laboratory equipment. Also, 0.8 million was allocated to additional funding of our liquidity
contract and 0.1 million was spent as a guarantee deposit in the context of expending our facilities.

In 2015, we purchased tools and
equipment for the design, the development and manufacturing of industrial prototypes and tools for 2.2 million and we spent 1.9 million for the relocation of our corporate headquarters to Montrouge (France).

C. Research and Development

For a discussion of our research and development activities, see Item 4.BBusiness Overview and Item 5.AOperating Results.

D. Trend Information

For
a discussion of trends, see Item 4.BBusiness Overview, Item 5.AOperating Results and Item 5.BLiquidity and Capital Resources.

E. Off-Balance Sheet Arrangements

During the periods presented, we did not and do not currently have any off-balance sheet arrangements as defined under SEC rules, such as relationships with
unconsolidated entities or financial partnerships, which are often referred to as structured finance or special purpose entities, established for the purpose of facilitating financing transactions that are not required to be reflected on our balance
sheets.

F. Tabular Disclosure of Contractual Obligations

The following table discloses aggregate information about material contractual obligations and periods in which payments were due as of December 31, 2015.
Future events could cause actual payments to differ from these estimates.



|                                    |  |                                 |       |  |             |  |       |             |  |  |                  |  |  |       |       |  |  |  |        | 
|----------------------------------- |  | ------------------------------- | ----- |  | ----------- |  | ----- | ----------- |  |  | ---------------- |  |  | ----- | ----- |  |  |  | ------ | 
|                                    |  | Less than1 year                 |       |  | 1 to 3years |  |       | 3 to 5years |  |  | More than 5years |  |  | Total |      
|                                    |  | (Amounts in thousands of Euros) |      
|Long-term debt obligations          |  |                                 | 149   |  |             |  | 1,324 |             |  |  | 1,066            |  |  |       | 2,303 |  |  |  | 4,842  | 
|Capital (finance) lease obligations |  |                                 |      |  |             |  |      |             |  |  |                 |  |  |       |      |  |  |  |       | 
|Operating lease obligations         |  |                                 | 2,013 |  |             |  | 3,448 |             |  |  | 3,143            |  |  |       | 4,877 |  |  |  | 13,481 | 
|Purchase obligations                |  |                                 |      |  |             |  |      |             |  |  |                 |  |  |       |      |  |  |  |       | 
|Other long-term liabilities         |  |                                 |      |  |             |  |      |             |  |  |                 |  |  |       |      |  |  |  |       | 
|Total                               |  |                                 | 2,162 |  |             |  | 4,772 |             |  |  | 4,209            |  |  |       | 7,180 |  |  |  | 18,323 | 

The commitment amounts in the table above are associated with contracts that are enforceable and legally binding and that
specify all significant terms, including interest on long-term debt, fixed or minimum services to be used, fixed, minimum or variable price provisions, and the approximate timing of the actions under the contracts. The table does not include
obligations under agreements that we can cancel without a significant penalty. In March 2015, we entered into a lease arrangement in relation to a new facility located in Montrouge, France. We relocated our corporate headquarters to Montrouge in
January 2016.



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G. Safe Harbor.

This Annual Report on Form 20-F contains forward-looking statements within the meaning of Section 27A of the Securities Act and Section 21E of the
Exchange Act and as defined in the Private Securities Litigation Reform Act of 1995. See Special Note Regarding Forward-Looking Statements.

Item 6. Directors, Senior Management and Employees.

A. Directors and Senior Management.

The following table sets forth information regarding our executive officers and directors, including their ages, as of April 29, 2016.
Unless otherwise stated, the address for our executive officers and directors is 177-181 avenue Pierre Brossolette, 92120 Montrouge, France.



|                          |  |     |    |  |             |                                                                           
|------------------------- |  | --- | -- |  | ----------- | --------------------------------------------------------------------------
|Name                      |  | Age |    |  | Position(s)
|Executive Officers:       |  |     |    |  |             |                                                                           
|Dr. Pierre-Henri Benhamou |  |     | 60 |  |             | Chief Executive Officer, Chairman of the Board of Directors and Co-Founder
|Bertrand Dupont           |  |     | 64 |  |             | Co-Founder and Senior Executive Vice President, Technology                
|David Schilansky          |  |     | 40 |  |             | Chief Operating Officer                                                   
|Charles Ruban             |  |     | 44 |  |             | Chief Commercial Officer                                                  
|Laurent Martin            |  |     | 49 |  |             | Chief Development Officer                                                 
|                          |  |    
|Non-Employee Directors:   |  |     |    |  |             |                                                                           
|Dr. Torbjörn Bjerke(1)(2) |  |     | 53 |  |             | Director                                                                  
|Michael J. Goller         |  |     | 41 |  |             | Director                                                                  
|George Horner III(1)(2)   |  |     | 71 |  |             | Director                                                                  
|Chahra Louafi             |  |     | 44 |  |             | Director                                                                  
|Daniel Soland(1)(2)       |  |     | 58 |  |             | Director                                                                  



|(1) | Member of the audit committee.
|--- | ------------------------------

|(2) | Member of the compensation committee.
|--- | -------------------------------------

Dr. Pierre-Henri Benhamou, co-founded our company in
2002, and has served as our Chief Executive Officer from 2002 to the present (except from 2006 to 2010, when he was Chief Scientific Officer) and Chairman of our board of directors since our initial public offering on Euronext Paris in March 2012.
With Dr. Christophe Dupont, he described for the first time and patented the epicutaneous method of immunotherapy and explored with our scientific team the wide range of applications of the method. Dr. Benhamou is a physician, specializing
in pediatric gastroenterology. He has held numerous clinical and academic positions. He received the Altran Foundation Prize for Innovation in 2003 for his work on the development of diagnostic patch tests. Dr. Benhamou has published numerous
papers and originated key scientific collaborations for us and has been instrumental in forming our Scientific Advisory Board. Dr. Benhamou holds an M.D. from Faculté de Médecine de Paris in 1984 and his specialization degree in
Pediatrics in 1987. The board of directors believes that Dr. Benhamous leadership, deep knowledge of our company and scientific experience will allow him to drive us to the success of our objectives.

Bertrand Dupont, one of our founders, has served as our Senior Executive Vice President, Technology since January 2015, and served as our Chief
Technical Officer from 2002 to 2015. He is a member of our Executive Committee. As our Senior Executive Vice President, Technology, Mr. Dupont oversees the technical development around the Viaskin technology. Mr. Dupont received an
engineering degree from the School of Arts et Métiers of Paris in 1974 and an aggregation in mechanical engineering in 1987.

David
Schilansky has served as our Chief Operating Officer since January 2015. Mr. Schilansky was our Chief Financial Officer from December 2011 to January 2015. He supervises all of our financial work, human resources, general secretary,
communication, investor relations as well as our partnership and business development activities. He is a member of our Executive Committee. From 2006 to 2011, Mr. Schilansky held various important positions at the Ipsen Group, or Ipsen,
including Interim Chief Financial Officer, Deputy Chief Financial Officer, member of Ipsens Executive Committee and other positions in the administration and finance department and participated in various external growth operations and
creation of Ipsens investor relations function. From 2003 to 2006, Mr. Schilansky spent three years at Thomson Inc. (now Technicolor S.A.) as co-head of investor relations. From 1999 to 2002, he spent three years at Warburg Dillon Read
(now UBS Investment Bank) in the field of mergers and acquisitions. Mr. Schilansky received a Master degree from Université de Paris Dauphine and a Master degree from Imperial College in London.



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Charles Ruban has served as our Chief Commercial Officer since January 2016 and has held various
positions since joining us in June 2012, including serving as our Senior Executive Vice President of Clinical Development & North American Operations and Chief Development Officer. He currently oversees all of our development activities
from manufacturing and quality control to clinical trials and regulatory affairs and is a member of our Executive Committee. From 2003 to 2012, Mr. Ruban held various executive positions at Stallergènes S.A., including Senior Vice
President of Product Development, member of the Executive Committee, Director of Research & Development Program and Director of Supply Chain. From 1994 to 2003, Mr. Ruban spent nine years at Eurogroup Consulting Holding as a management
consultant. Mr. Ruban received an Engineering degree from the Ecole Centrale de Lyon, trained at Harvard-MIT Division of Health Sciences and Technology for his Master of Science in Biomedical Engineering and graduated with an Executive MBA from
INSEAD.

Laurent Martin has served as our Chief Development Officer since January 2016 and has held various positions since joining us in
2007, including serving as our Senior Executive Vice President, Product Strategy & Regulatory Affairs and Director of Regulatory Affairs and Quality. He acquired his expertise in regulatory affairs through various pharmaceutical companies,
such as Galderma, Guerbet, and finally, Orphan Europe, a company specialized in the development and marketing of orphan drugs, in which his last position was as Interim Responsible Pharmacist (Qualified Person), Manager of Pharmaceutical and
Pre-Clinical Development, and Quality Assurance Manager. He received his PharmD from the Université René Descartes in Paris with an M.B.A. from IAE Paris Sorbonne and a Master of Law in Public Health from the faculty of Sceaux.

Dr. Torbjörn Bjerke has served as a member of our board of directors since 2006. Dr. Bjerke is the Chief Executive Officer of
Karolinska Development AB. Previously, Dr. Bjerke was the President and Chief Executive Officer of Orexo AB, a position he held from 2007 until January 2011, President and Chief Executive Officer of Biolipox AB and Director of Pharmacology at
AstraZeneca. Dr. Bjerke holds a Ph.D. in Medicine from Aarhus Universitet. The board of directors believes that Dr. Bjerkes experience in the pharmaceutical industry, particularly his extensive experience in allergy treatment field,
and his years of business and leadership experience allow him to make valuable contributions to the board of directors.

Michael J. Goller
has served as a member of our board of directors since 2015. Mr. Goller serves as a Managing Director of Baker Brothers Investments, a fund management company focused on long-term investments in life-sciences companies. Prior to joining Baker
Brothers in 2005, Mr. Goller was an Associate of JPMorgan Partners, LLC where he focused on venture investments in the life sciences sector from 1999 to 2003. Mr. Goller began his career as an investment banker with Merrill Lynch and Co.
from 1997 to 1999. Mr. Goller holds a B.S. in Molecular and Cell Biology from The Pennsylvania State University, and a Masters in both Biotechnology and Business Administration from the University of Pennsylvania. The board of directors
believes that Mr. Gollers experience in the life sciences industry and his knowledge of corporate development matters allows him to make valuable contributions to the board of directors.

George Horner III has served as a member of our board of directors since 2010. Mr. Horner has over 40 years of experience as a
pharmaceutical executive. Since 2009, Mr. Horner has served as a biotech executive consultant for several private companies in the United States and Europe. Before that, from 2006 to 2008, Mr. Horner was the Chief Executive Officer of
Prestwick Pharmaceuticals, Inc., or Prestwick, and under his leadership, Prestwick obtained FDA approval for Tetrabenazine (TBZ), the first drug ever licensed in the United States to treat Huntingtons disease patients. From 1996 to 2005,
Mr. Horner was the Chief Executive Officer of Vicuron Pharmaceuticals, Inc. (previously known as Versicor), an anti-infective company that he grew from a market value of $12.8 million to a sale to Pfizer for $1.9 billion. He previously held
numerous executive, general management, business development and marketing and sales positions at Abbott Laboratories and Bristol-Myers Squibb Company across four continents. Mr. Horner holds a AB of English History from Belmont Abbey College.
From 2010 until its sale to AstraZeneca plc in July 2013, Mr. Horner was the chairman of the board of directors of Omthera Pharmaceuticals, Inc. The board of directors believes that Mr. Horners extensive executive and management
experience in the pharmaceutical industry worldwide allows him to make valuable contributions to the board of directors.

Chahra Louafi has
served as a member of our board of directors since December 2010. Ms. Louafi is the Investment Director at Bpifrance Investissement, the fund manager for InnoBio FCPR, where she joined in 2001. Since October 2009, she has served the management
team of InnoBio, a fund dedicated to biotech companies, managed by Bpifrance Investissement and invested by the pharmaceutical industry. Before that, she was at Mendel Partner in charge of initiating and implementing projects, as well as creating
private business incubator specialized in biotechnology. Ms. Louafi serves on the boards of directors of Cysogene SAS and Pixium Vision SA. In addition, Ms. Louafi is the Chairman of the supervisory board of Inserm Transfert Initiative and
a member of the supervisory board of Cap Décisif Management. Ms. Louafi graduated from Paris Dauphine University with a Masters of Technology and Innovation Management, from Paris X Nanterre University with a Masters of Corporate
Finance, and from Institut National Agronomique de ParisGrignon with a Masters of Microbiology and Enzymatic Engineering. The board of directors believes that Ms. Louafis extensive investment experience in biotechnology industry
allows her to make valuable contributions to the board of directors.



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Daniel Soland has served as a member of our board of directors since 2015. Mr. Soland most
recently served as Senior Vice President and Chief Operating Officer of Viropharma, and currently serves on the Board of Tarsa Therapeutics. In addition to his role at Viropharma, where he helped build the organizational and commercial
infrastructure that resulted in an 11-fold increase in Viropharmas share price during his tenure, Mr. Soland previously served as President of Chiron Vaccines, and helped engineer a turnaround that contributed to Chirons acquisition
by Novartis. Earlier, he was President and CEO of Epigenesis Pharmaceuticals. At GlaxoSmithKline Biologicals, Mr. Soland served as Vice President and Director, Worldwide Marketing Operations. Earlier in his career, Mr. Soland held
positions of increasing responsibility in sales and product management at Pasteur-Merieuxs Connaught Laboratories. He holds a BS in Pharmacy degree from the University of Iowa. The board of directors believes that Mr. Horners
extensive executive and management experience in the pharmaceutical industry worldwide, notably at various senior commercial operations positions, allows him to make valuable contributions to the board of directors.

Family Relationships

There are no family relationships
among any of our executive officers or directors.

B. Compensation.

The aggregate compensation paid and benefits in kind granted by us to our current executive officers and directors, including share-based compensation, for the
year ended December 31, 2015, was 7.2 million. For the year ended December 31, 2015, 0.2 million of the amounts set aside or accrued to provide pension, retirement or similar benefits to our employees was attributable to
our executive officers.

Director Compensation

Our shareholders at our ordinary shareholders general meeting held on June 23, 2015 set the total annual attendance fees to be distributed among
non-employee directors, except those who are affiliated with one of our significant shareholders, at 350,000. This authorization is automatically renewed each year, unless otherwise decided by our shareholders at an ordinary shareholders
general meeting. On March 24, 2015, upon recommendation of our compensation committee, our board of directors set attendance fees for our non-employee directors at a fixed annual retainer of 30,000 per year, regardless of whether or
not the director is independent. The members of our audit committee and compensation committee, regardless of whether or not the director is independent, are each entitled to an additional retainer of 5,000 per year. This amount will be
increased to 10,000 per year for the chairman of said committees. The following table sets forth information regarding the compensation earned by our non-employee directors for 2015. Dr. Benhamou, our Chief Executive Officer,
Chairman and Co-Founder, is a director but does not receive any additional compensation for his services as a director.



|                     |  |                                 |    |  |             |  |       |       |  |  |       | 
|-------------------- |  | ------------------------------- | -- |  | ----------- |  | ----- | ----- |  |  | ----- | 
|Name                 |  | Fees Earned                     |    |  | Warrants(1) |  |       | Total | 
|                     |  | (Amounts in thousands of Euros) |   
|Torbjörn Bjerke      |  |                                 | 45 |  |             |  |      |       |  |  | 45    | 
|Michael J. Goller(2) |  |                                 |   |  |             |  |      |       |  |  |      | 
|George Horner III    |  |                                 | 45 |  |             |  | 169.5 |       |  |  | 214.5 | 
|Peter Barton Hutt(3) |  |                                 | 15 |  |             |  |      |       |  |  | 15    | 
|Chahra Louafi        |  |                                 | 30 |  |             |  |      |       |  |  | 30    | 
|Daniel Soland(4)     |  |                                 | 40 |  |             |  | 268.5 |       |  |  | 308.5 | 
|Rafaèle Tordjman(5)  |  |                                 | 20 |  |             |  |      |       |  |  | 20    | 



|(1) | This column reflects the full grant date fair value for warrants granted during 2015 as measured pursuant to IFRS 2Share-Based Payment as share-based compensation in our financial statements. Unlike the
calculations contained in our financial statements, this calculation does not give effect to any estimate of forfeitures related to service-based vesting, but assumes that the director will perform the requisite service for the award to vest in
full. The assumptions we used in valuing options are described in Note 17 to our financial statements included in this Annual Report on Form 20-F.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | Appointed on October 21, 2015, in replacement of Rafaèle Tordjman from Sofinnova Partners who resigned from the board of directors as of October 21, 2015.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------

|(3) | Resigned from the board of directors as of June 23, 2015.
|--- | ---------------------------------------------------------

|(4) | Appointed on March 6, 2015 in replacement of Didier Hoch who had resigned.
|--- | --------------------------------------------------------------------------

|(5) | Resigned from the board of directors as of October 21, 2015.
|--- | ------------------------------------------------------------



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CEO and COO Compensation

The following table sets forth information regarding compensation earned by Dr. Benhamou, our Chief Executive Officer, Chairman and Co-Founder, and
Mr. Schilansky, our Chief Operating Officer, during the year ended December 31, 2015.



|                            |  |         |         |  |        |  |         |               |  |  |                                      |        |  |                        |   |  |        |  |   |  |  |  |           | 
|--------------------------- |  | ------- | ------- |  | ------ |  | ------- | ------------- |  |  | ------------------------------------ | ------ |  | ---------------------- | - |  | ------ |  | - |  |  |  | --------- | 
|Name and Principal Position |  | Salary |         |  | Bonus |  |         | EquityAwards |  |  | Non-EquityIncentivePlanCompensation |        |  | All OtherCompensation |   |  | Total | 
|Pierre-Henri Benhamou       |  |         | 338,100 |  |        |  | 114,660 | (1)           |  |  | 7,558,800                            | (2)(3) |  |                        |  |  |        |  |  |  |  |  | 8,011,560 | 
|Chief Executive Officer,    |  |         |         |  |        |  |         |               |  |  |                                      |        |  |                        |   |  |        |  |   |  |  |  |           | 
|Chairman and Co-Founder     |  |         |         |  |        |  |         |               |  |  |                                      |        |  |                        |   |  |        |  |   |  |  |  |           | 
|David Schilansky            |  |         | 253,575 |  |        |  | 85,995  | (4)           |  |  | 5,039,200                            | (2)(3) |  |                        |  |  |        |  |  |  |  |  | 5,378,770 | 
|Chief Operating Officer     |  |         |         |  |        |  |         |               |  |  |                                      |        |  |                        |   |  |        |  |   |  |  |  |           | 



|(1) | The bonus awarded to Dr. Benhamou for 2015 amounted to 219,768 and was paid in January 2016.
|--- | ---------------------------------------------------------------------------------------------

|(2) | This column reflects the full grant date fair value for equity awards granted during the year as measured pursuant to IFRS 2Share-Based Payment as share-based compensation in our financial statements. Unlike the
calculations contained in our financial statements, this calculation does not give effect to any estimate of forfeitures related to service-based vesting, but assumes that the executive officer will perform the requisite service for the award to
vest in full. The assumptions we used in valuing options are described in Note 17 to our financial statements included in this Annual Report on Form 20-F.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(3) | The acquisition of the free shares is subject to the achievement of three performance criteria: (a) one-third of the shares allocated to executive officers will not vest until the later of the following two dates:
(i) the end of the two year vesting period which runs from September 30, 2015 and (ii) the primary efficacy endpoint of the Phase III PEPITES trial for Viaskin Peanut; (b) one-third of the shares allocated to executive officers
will not vest until the later of the following two dates: (i) the end of the two year vesting period which runs from September 30, 2015 and (ii) the primary efficacy endpoint of the Phase II MILES trial for Viaskin Milk; and
(c) one-third of the shares allocated to executive officers will not vest until the later of the following two dates: (i) the end of the two year vesting period which runs from September 30, 2015 and (ii) the beginning of
clinical testing of another product candidate from the Viaskin platform.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(4) | The bonus awarded to Mr. Schilansky for 2015 amounted to 164,824 and was paid in January 2016.
|--- | -----------------------------------------------------------------------------------------------

Executive Compensation Arrangements

For a discussion of our employment arrangements with our executive officers, see Item 7.CRelated Party TransactionsArrangements with Our
Directors and Executive Officers. Except the arrangements described in Item 7.CRelated Party TransactionsArrangements with Our Directors and Executive Officers, there are no arrangements or understanding between us and
any of our other executive officers providing for benefits upon termination of their employment, other than as required by applicable law.

Limitations
on Liability and Indemnification Matters

Under French law, provisions of by-laws that limit the liability of directors are prohibited. However, French
law allows sociétés anonymes to contract for and maintain liability insurance against civil liabilities incurred by any of their directors and officers involved in a third-party action, provided that they acted in good faith and
within their capacities as directors or officers of the company. Criminal liability cannot be indemnified under French law, whether directly by the company or through liability insurance.

We maintain liability insurance for our directors and officers, including insurance against liability under the Securities Act and we intend to enter into
agreements with our directors and executive officers to provide contractual indemnification. With certain exceptions and subject to limitations on indemnification under French law, these agreements will provide for indemnification for damages and
expenses including, among other things, attorneys fees, judgments, fines and settlement amounts incurred by any of these individuals in any action or proceeding arising out of his or her actions in that capacity. We believe that this insurance
and these agreements are necessary to attract qualified directors and executive officers.

These agreements may discourage shareholders from bringing a
lawsuit against our directors and executive officers for breach of their fiduciary duty. These provisions also may have the effect of reducing the likelihood of derivative litigation against directors and executive officers, even though such an
action, if successful, might otherwise benefit us and our shareholders. Furthermore, a shareholders investment may be adversely affected to the extent we pay the costs of settlement and damage awards against directors and officers pursuant to
these insurance agreements.



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Certain of our non-employee directors may, through their relationships with their employers or partnerships, be
insured against certain liabilities in their capacity as members of our board of directors.

Equity Incentives

We believe that our ability to grant incentive awards is a valuable and necessary compensation tool that allows us to attract and retain the best available
personnel for positions of substantial responsibility, provides additional incentives to employees and promotes the success of our business. Due to French corporate law and tax considerations, historically, we have granted several different equity
incentive instruments to our directors, executive officers, employees and other service providers. These are:



| |  |  | employee warrants (otherwise known as bons de souscription de parts de créateurs dentreprise, or BSPCE), granted to our officers and employees;
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | non-employee warrants (otherwise known as bons de souscription dactions, or BSA), historically typically granted only to non-employee directors, members of our Scientific Advisory Board and other service
providers not eligible for either employee warrants or employee share options;
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | employee share options (otherwise known as options de souscription dactions, or OSA), granted to our officers and employees; and
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------



| |  |  | free shares (otherwise known as actions gratuites).
| | - |  | ---------------------------------------------------

Our board of directors authority to grant
these equity incentive instruments and the aggregate amount authorized to be granted must be approved by a two-thirds majority of the votes held by our shareholders present, represented or voting by authorized means at the relevant extraordinary
shareholders meeting. Once approved by our shareholders, our board of directors can continue to grant such awards for 18 months for employee warrants and non-employee warrants authorized by the shareholders and 38 months for employee share
options and free shares authorized by the shareholders.

We are no longer eligible to issue employee warrants since completion of our initial public
offering on Euronext Paris in 2012.

In general, employee warrants, employee share options and non-employee warrants no longer continue to vest following
termination of the employment, office or service of the holder and all vested shares must be exercised within post-termination exercise periods set forth in the grant documents. In the event of certain changes in our share capital structure, such as
a consolidation or share split or dividend, French law and applicable grant documentation provides for appropriate adjustments of the numbers of shares issuable and/or the exercise price of the outstanding warrants or share options.

As of December 31, 2015, employee warrants, non-employee warrants, employee share options and free share were allowing for the purchase of an aggregate
of 2,336,224 ordinary shares at a weighted average exercise price of 20.72 per share (not including the 1,008,329 ordinary shares issuable upon the vesting of outstanding free shares that may be issued for free with no exercise price
being paid).

Employee Warrants (BSPCE)

Employee warrants were granted only to our employees who are French tax residents as they carry favorable tax and social security treatment for French tax
residents. Employee warrants may also be granted to our chairman and general manager and to our deputy general managers. Similar to options, they entitle a holder to exercise the warrant for the underlying vested shares at an exercise price per
share determined by our board of directors and at least equal to the fair market value of an ordinary share on the date of grant. Employee warrants may only be issued by growth companies meeting certain criteria, which we will not meet following the
completion of the offering. There is no legal limitation to the size of the employee warrant pool under French law.



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We have issued three types of employee warrants as follows:



|                                                                             |  |         |           |  |         |   |           |            |  |   |            |  |  |   |            | 
|---------------------------------------------------------------------------- |  | ------- | --------- |  | ------- | - | --------- | ---------- |  | - | ---------- |  |  | - | ---------- | 
|Plan title                                                                   |  | BSPCE 4 |           |  | BSPCE X |   |           | BSPCE 2010 | 
|Meeting date                                                                 |  |         | 1/21/2009 |  |         |   | 1/21/2009 |            |  |   | 12/16/2010 | 
|Date of allocation by the Board of Directors                                 |  |         | 1/21/2009 |  |         |   | 1/21/2009 |            |  |   | 6/24/2011  |  |  |   | 11/22/2011 | 
|Total number of BSPCE authorized                                             |  |         | 5,358     |  |         |   | 10,858    |            |  |   | 59,405     |  |  |   | 59,405     | 
|Total number of BSPCEs granted                                               |  |         | 5,358     |  |         |   | 2,296     |            |  |   | 24,000     |  |  |   | 10,039     | 
|including those granted to Pierre-Henri Benhamou                             |  |         |          |  |         |   |          |            |  |   | 10,000     |  |  |   |           | 
|David Schilansky                                                             |  |         |          |  |         |   |          |            |  |   |           |  |  |   | 10,039     | 
|Start date for the exercise of the BSPCEs                                    |  |         | 1/21/2009 |  |         |   | 1/21/2010 |            |  |   | 12/23/2011 |  |  |   | 11/22/2012 | 
|BSPCE expiry date                                                            |  |         | 1/21/2019 |  |         |   | 1/21/2019 |            |  |   | 6/24/2021  |  |  |   | 11/22/2021 | 
|BSPCE exercise price(1)                                                      |  |        | 4.33      |  |         |  | 4.67      |            |  |  | 5.13       |  |  |  | 5.13       | 
|Number of shares subscribed as of December 31, 2015(1)                       |  |         | 40,005    |  |         |   | 34,440    |            |  |   | 158,025    |  |  |   | 112,950    | 
|Total number of BCPCEs canceled or obsolete as of December 31, 2015          |  |         |          |  |         |   |          |            |  |   |           |  |  |   |           | 
|Total number of BCPCEs outstanding as of December 31, 2015                   |  |         | 2,691     |  |         |   |          |            |  |   | 13,465     |  |  |   | 2,509      | 
|Total number of shares available for subscription as of December 31, 2015(1) |  |         | 40,365    |  |         |   |          |            |  |   | 201,975    |  |  |   | 37,635     | 



|(1) | The number of shares reflects an adjusted exercise parity of the division by 15 of the nominal value of the shares decided by the General Meeting of Shareholders held on December 9, 2011, namely that each BPSCE is
now entitled to a subscription right to 15 new shares instead of 1 new share. For the same reason, the exercise price of each BPSCE plan has been adjusted accordingly and equals 1/15 of the price initially determined by the general meeting of
shareholders having authorized each of the plans.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

All BPSCE 4, BPSCE X and BSPCE 2010 granted on June 2011 and BSPCE 2010 granted on
November 2011 are exercisable.

Administration. Pursuant to delegations granted by our shareholders, our board of directors determined the
recipients, dates of grant and exercise price of employee warrants, the number of employee warrants to be granted and the terms and conditions of the employee warrants, including the period of their exercisability and their vesting schedule. The
board of directors has the authority to extend the post-termination exercise period of employee warrants after the termination of the employment agreement.

Employee warrants are not transferable and may not be sold, pledged, assigned, hypothecated, transferred or disposed of in any manner other than by will or by
laws of descent or distribution and may be exercised, during the lifetime of the beneficiary, only by the beneficiary.



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Non-Employee Warrants (BSA)

Historically, non-employee warrants were typically granted by our board of directors to non-employee directors, members of our Scientific Advisory Board and
other service providers not eligible for either employee warrants or employee share options. In addition to any exercise price payable by a holder upon the exercise of any non-employee warrant, non-employee warrants need to be subscribed for a price
which is determined by the board on the date of grant. There is no legal limitation to the size of the non-employee warrant pool.

We have issued eight
types of non-employee warrants (BSAs) as of December 31, 2015, the terms of which are set forth in the chart below:



|                                                                             |  |     |           |  |       |   |           |       |  |   |           |  |  |          |            |  |          |   |            |         |  |   |            |  |  |   |            |  |  |   |           |  |  |   |           |  |  |   |           |  |  |   |          |  |  |   |          |  |  |   |          |  |  |   |          |    
|---------------------------------------------------------------------------- |  | --- | --------- |  | ----- | - | --------- | ----- |  | - | --------- |  |  | -------- | ---------- |  | -------- | - | ---------- | ------- |  | - | ---------- |  |  | - | ---------- |  |  | - | --------- |  |  | - | --------- |  |  | - | --------- |  |  | - | -------- |  |  | - | -------- |  |  | - | -------- |  |  | - | -------- | ---
|Plan title                                                                   |  | BSA |           |  | BSA 2 |   |           | BSA X |  |   | BSA 2010  |  |  | BSA 2012 |            |  | BSA 2013 |   |            | BSA2014 |  |   | BSA 2015   | 
|Meeting date                                                                 |  |     | 6/14/2007 |  |       |   | 1/21/2009 |       |  |   | 1/21/2009 |  |  |          | 12/16/2010 |  |          |   | 12/9/2011  |         |  |   | 6/4/2013   |  |  |   | 6/3/2014   |  |  |   | 06/03/14  |  |  |   | 06/23/15  |  |  |   | 06/23/15  | 
|Date of grant by the Board of Directors                                      |  |     | 12/7/2007 |  |       |   | 1/21/2009 |       |  |   | 1/21/2009 |  |  |          | 6/25/2010  |  |          |   | 1/28/2011  |         |  |   | 6/24/2011  |  |  |   | 11/22/2011 |  |  |   | 1/17/2012 |  |  |   | 9/25/2012 |  |  |   | 7/25/2013 |  |  |   | 6/3/2014 |  |  |   | 03/24/15 |  |  |   | 11/19/15 |  |  |   | 12/15/15 |    
|Total number of BSAs authorized                                              |  |     | 4,395     |  |       |   | 10,716    |       |  |   | 10,858    |  |  |          | 10,858     |  |          |   | 59,405     |         |  |   | 59,405     |  |  |   | 59,405     |  |  |   | 59,405    |  |  |   | 300,000   |  |  |   | 100,000   |  |  |   | 307,468  |  |  |   | 10,000   |  |  |   | 22,500   |  |  |   | 90,000   |    
|Total number of BSAs granted                                                 |  |     | 1,717     |  |       |   | 10,716    |       |  |   | 306       |  |  |          | 1,825      |  |          |   | 10,039     |         |  |   | 8,000      |  |  |   | 1,338      |  |  |   | 89,835    |  |  |   | 30,000    |  |  |   | 73,000    |  |  |   | 10,000   |  |  |   |         |  |  |   |         |  |  |   |         |    
|Including those granted to Pierre-Henri Benhamou                             |  |     |          |  |       |   | 5,358     |       |  |   |          |  |  |          |           |  |          |   |           |         |  |   |           |  |  |   |           |  |  |   |          |  |  |   |          |  |  |   |          |  |  |   |         |  |  |   |         |  |  |   |         |  |  |   |         |    
|Start date for the exercise of the BSAs                                      |  |     | 12/7/2008 |  |       |   | 1/21/2009 |       |  |   | 1/21/2010 |  |  |          | 6/25/2011  |  |          |   | 12/23/2011 |         |  |   | 12/23/2011 |  |  |   | 11/22/2012 |  |  |   | 1/17/2016 |  |  |   | 9/25/2013 |  |  |   | 7/25/2013 |  |  |   | 6/3/2014 |  |  |   |         |  |  |   |         |  |  |   |         |    
|BSA expiry date                                                              |  |     | 12/7/2015 |  |       |   | 1/21/2019 |       |  |   | 1/21/2019 |  |  |          | 6/25/2020  |  |          |   | 1/28/2021  |         |  |   | 6/24/2021  |  |  |   | 11/22/2021 |  |  |   | 1/17/2022 |  |  |   | 9/25/2022 |  |  |   | 7/25/2023 |  |  |   | 6/3/2024 |  |  |   | 03/24/25 |  |  |   | 11/19/25 |  |  |   | 12/15/25 |    
|BSA exercise price                                                           |  |    | 4.33      |  |       |  | 4.33      |       |  |  | 4.33      |  |  |         | 4.33       |  |          |  | 5.13       |         |  |  | 5.13       |  |  |  | 5.13       |  |  |  | 5.13      |  |  |  | 8.59      |  |  |  | 8.10      |  |  |  | 18.79    |  |  |  | 43.00    |  |  |  | 66.06    |  |  |  | 64.14    |    
|Number of shares subscribed as of December 31, 2015                          |  |     | 4,290     |  |       |   | 160,740   |       |  |   |           |  |  |          | 16,425     |  |          |   | 37,650     |         |  |   | 109,350    |  |  |   | 15,060     |  |  |   |          |  |  |   | 20,000    |  |  |   | 60,000    |  |  |   | 5,000    |  |  |   |         |  |  |   |         |  |  |   |          | (3)
|Total number of BSAs canceled or obsolete as of December 31, 2015            |  |     | 572       |  |       |   |          |       |  |   |          |  |  |          |           |  |          |   |           |         |  |   |           |  |  |   |           |  |  |   |          |  |  |   |          |  |  |   |          |  |  |   |         |  |  |   |         |  |  |   | 7,500    |  |  |   |          | (3)
|Total number of BSAs remaining as of December 31, 2015                       |  |     | 859       |  |       |   |          |       |  |   | 306       |  |  |          | 730        |  |          |   |           |         |  |   | 710        |  |  |   | 334        |  |  |   | 89,835    |  |  |   | 10,000    |  |  |   | 13,000    |  |  |   | 5,000    |  |  |   | 10,000   |  |  |   | 15,000   |  |  |   |          | (3)
|Total number of shares available for subscription as of December 31, 2015(1) |  |     | 12,885    |  |       |   |          |       |  |   | 4,590     |  |  |          | 10,950     |  |          |   |           |         |  |   | 10,650     |  |  |   | 5,010      |  |  |   | 89,835    |  |  |   | 10,000    |  |  |   | 13,000    |  |  |   | 5,000    |  |  |   | 10,000   |  |  |   | 15,000   |  |  |   |          | (3)



|(1) | The number of shares reflects an adjusted exercise parity of the division by 15 of the nominal value of shares. Namely, each BSA is now entitled to a subscription right to 15 new shares instead of 1 new share. For the
same reason, the exercise price of each BSA plan has been adjusted accordingly and equals 1/15 of the price initially determined.
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | The overall nominal amount of the shares to which the warrants issued are likely to give entitlement may not exceed 100,000.
|--- | -----------------------------------------------------------------------------------------------------------------------------

|(3) | The final subscription date for the BSAs issued in December 2015 was February 15, 2016; none of these BSAs were subscribed as of December 31, 2015. At February 15, 2016, 73,500 BSAs were subscribed.
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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All BSA, BSA 2, BSA X and BSA 2010 are currently exercisable. All BSA 2012, 2013, 2014 2015 and BSA X 2015 are
exercisable subject to continuous membership of our Board or Scientific Advisory Board (as the case may be) and subject to applicable insiders rules.

Administration. Pursuant to delegations granted by our shareholders, our board of directors determined the recipients, dates of grant and
exercise price of non-employee warrants, the number of non-employee warrants to be granted and the terms and conditions of the non-employee warrants, including the period of their exercisability and their vesting schedule. The board of directors has
the authority to extend the post-termination exercise period of non-employee warrants after the end of the term of office.

Non-employee warrants may be
transferred to any person and may be exercised by their holder at any time subject to vesting.

Share Options (OSA)

We have granted share options to our employees and our officers pursuant to our 2013 Share Option Plan, or 2013 Plan, our 2014 Share Option Plan, or 2014 Plan,
and our 2015 Share Option Plan, or 2015 Plan. Our current plan, the 2015 Plan, was adopted by our board of directors on September 21, 2015.

Share
options may be granted to any individual employed by us or by any affiliated company under the terms and conditions of an employment contract. Employee share options may also be granted to our chairman and general manager and to our deputy general
managers.



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The maximum number of our ordinary shares that may be issued pursuant to share options granted under the 2013
Plan, 2014 Plan and 2015 Plan are 518,000, 322,405 and 315,000, respectively. In addition, under French law, the maximum number of shares issuable upon exercise of outstanding employee share options may not exceed one-third of the outstanding share
capital on a non-diluted basis as at the date of grant.



|                                                                          |  |         |           |  |         |   |          |         |  |   |           |  |  |   |           | 
|------------------------------------------------------------------------- |  | ------- | --------- |  | ------- | - | -------- | ------- |  | - | --------- |  |  | - | --------- | 
|Plan title                                                                |  | SO 2013 |           |  | SO 2014 |   |          | SO 2015 | 
|Meeting date                                                              |  |         | 12/9/2011 |  |         |   | 6/3/2014 |         |  |   | 6/3/14    |  |  |   | 6/3/14    | 
|Date of allocation by the board of directors                              |  |         | 9/18/2013 |  |         |   | 6/3/2014 |         |  |   | 6/23/15   |  |  |   | 11/19/15  | 
|Total number of options granted                                           |  |         | 518,000   |  |         |   | 75,000   |         |  |   | 120,000   |  |  |   | 195,000   | 
|Including those granted to Pierre-Henri Benhamou                          |  |         | 129,000   |  |         |   |         |         |  |   |          |  |  |   |          | 
|Start date for the exercise of
options(1)                                 |  |         | 9/19/2017 |  |         |   | 6/4/2016 |         |  |   | 6/24/2016 |  |  |   | 9/30/2016 | 
|Options expiry date                                                       |  |         | 9/18/2023 |  |         |   | 6/3/2024 |         |  |   | 6/24/2026 |  |  |   | 9/30/2026 | 
|Options exercise price                                                    |  |        | 7.57      |  |         |  | 19.01    |         |  |  | 48.90     |  |  |  | 66.06     | 
|Number of shares subscribed as of December 31, 2015                       |  |         |          |  |         |   |         |         |  |   |          |  |  |   |          | 
|Total number of options canceled or obsolete as of December 31, 2015      |  |         | 47,000    |  |         |   |         |         |  |   |          |  |  |   |          | 
|Total number of options remaining as of December 31, 2015                 |  |         | 471,000   |  |         |   | 75,000   |         |  |   | 120,000   |  |  |   | 195,000   | 
|Total number of shares available for subscription as of December 31, 2015 |  |         | 471,000   |  |         |   | 75,000   |         |  |   | 120,000   |  |  |   | 195,000   | 



|(1) | By way of exception, in the event of a change in control (as defined in Article L.233-3 of the French Commercial Code) occurring prior to September 19, 2017, or June 4, 2016, as applicable, all of the options
could be exercised in advance.
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Our board of directors has set at 10% the number of acquired shares that must be kept by
Dr. Pierre-Henri Benhamou in registered form until the cessation of his duties.

Administration. Our board of directors has the
authority to administer the 2013 Plan, the 2014 Plan and the 2015 Plan, or collectively, the Plans. Subject to the terms of each of the Plans, our board of directors determines recipients, dates of grant, exercise price of share options, the number
of share options to be granted and the terms and conditions of the share options, including the period of their exercisability and their vesting schedule.

The board of directors has the authority to modify awards outstanding under the Plans subject to the consent of the optionee if such modification is
detrimental to him/her, including in particular the authority to extend the post-termination exercise period after the termination of the employment.

The
term of each share option is ten years from the date of grant or, in the case of death or disability of the optionee during such ten-year period, six months from the death or disability of the optionee in accordance with French law. In the event of
the death of an optionee during the term of the options, unless otherwise resolved by the board of directors, the vested options may be exercised at any time within six months following the date of death, by the optionees estate or by a person
who acquired the right to exercise the option by bequest or inheritance.

Share options are not transferable and may not be sold, pledged, assigned,
hypothecated, transferred or disposed of in any manner other than by will or by laws of descent or distribution and may be exercised, during the lifetime of the optionee, only by the optionee.

Amendment and Termination. Our board of directors has the authority to amend, alter, suspend, or terminate the Plans, provided that such action
does not impair the rights of any optionee without such optionees consent. We shall obtain shareholder approval of any amendment to the extent necessary and desirable to comply with applicable laws.

Free Shares

Under our 2012, 2013,
2014 and 2015 Free Share Plans, we have granted free shares to our employees and officers. We have two current free share plans, the 2015 Free Share Plans, which were adopted by our board of directors on September 30, 2015 and December 15,
2015, respectively.

Free shares may be granted to any individual employed by us or by any affiliated company under the terms and conditions of an
employment contract. Free shares may also be granted to our Chairman, our general manager and to our deputy general managers. However, no free share may be granted to a beneficiary holding more than 10% of our share capital or to a beneficiary who
would hold more than 10% of our share capital as a result of such grant.



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Share Reserve. The maximum number of our ordinary shares that may be issued, in aggregate, under
the 2012, 2013, 2014 and 2015 Free Share Plans is 1,008,329. In addition, under French law, the number of free shares may not exceed 10% of the outstanding share capital on a non-diluted basis as at the date of grant.

The details of the grants under the 2012, 2013, 2014 and 2015 Free Share Plans as of December 31, 2015 are as follows:



|                                                                                            |  |                                   |  |                     |  |                   |  |                                      |  |                    |  |                      |  |                    
|------------------------------------------------------------------------------------------- |  | --------------------------------- |  | ------------------- |  | ----------------- |  | ------------------------------------ |  | ------------------ |  | -------------------- |  | -------------------
|                                                                                            |  | INFORMATION REGARDING FREE SHARES
|Meeting date                                                                                |  | December 9,
2011                  |  | December 9,
2011    |  | December 9,
2011  |  | December 9,
2011                     |  | June 3, 2014       |  | September 21,2015    |  | December 15,2015   
|Date(s) of the meeting of the board of directors                                            |  | April 2, 2012                     |  | July 25, 2012       |  | November 28, 2012 |  | July 25, 2013 and
September 12, 2013 |  | June 3, 2014       |  | September 30,2015    |  | December 15,2015   
|Total number of free shares granted                                                         |  | 669,796                           |  | 134,081             |  | 35,360            |  | 501,500                              |  | 186,000            |  | 708,500              |  | 42,000             
|Number of shares granted to Pierre-Henri Benhamou                                           |  | 304,461                           |  |                    |  |                  |  | 58,500                               |  | 60,000             |  | 120,000              |  |                   
|David Schilansky                                                                            |  |                                  |  |                    |  |                  |  |                                     |  |                   |  | 80,000               |  |                   
|Date of definitive acquisition of free shares (subject to the conditions of acquisition)(1) |  | April 2, 2014(2)(3)               |  | July 25, 2014(2)(3) |  | November 28, 2014 |  | July 25, 2015(2)(4)                  |  | June 3, 2016(2)(5) |  | September 30,2017(6) |  | December 15,2017(6)
|End date of retention period                                                                |  | April 2, 2016(2)                  |  | July 25, 2016(2)    |  | November 28, 2016 |  | July 25, 2017(2)                     |  | June 3, 2018(2)    |  | September 30,2017    |  | December 15,2017   
|Number of shares acquired definitively as of December 31, 2015                              |  | 667,936                           |  | 134,081             |  | 35,360            |  | 286,338                              |  |                   |  |                     |  |                   
|Cumulative number of free shares canceled or lapsed as of December 31, 2015                 |  | 1,860                             |  |                    |  |                  |  | 31,833                               |  | 30,000             |  |                     |  |                   
|Shares acquired free of charge remaining as of December 31, 2015 (in acquisition
period)    |  |                                  |  |                    |  |                  |  | 101,829                              |  | 156,000            |  | 708,500              |  | 42,000             



|(1) | In the event of incapacity of a beneficiary as defined in Article L. 225-197-1, I of the French Commercial Code during the vesting period, said beneficiary may request the allocation of the shares within a period of six
months from the event that led to the incapacity. In the event of the death of a beneficiary during the vesting period, his heirs may request the free allocation of shares within a period of six months from the death.
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | The acquisition and retention period end date start on achievement of performance criteria for executive officers. See (3), (4) or (5) below.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------

|(3) | The acquisition of free shares is conditional for executive officers, including Dr. Benhamou, to the achievement of the three performance criteria below:
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | One-third of the shares allocated to executive officers will only be acquired from the later of the two following dates: (i) expiry of a period of two years from the date of allocation and (ii) inclusion of
the 100th patient in the VIPES Phase IIb clinical trial.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | One-third of the shares allocated to executive officers will only be acquired from the later of the two following dates: (i) expiry of a period of two years from the date of allocation and (ii) achievement of
the principal evaluation criterion in the VIPES Phase IIb clinical trial.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | One-third of the shares allocated to executive officers will only be acquired from the later of the two following dates: (i) expiry of a period of two years from the date of allocation and (ii) inclusion of
the first patient in the Viaskin Milk Phase IIb clinical trial.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|(4) | The acquisition of free shares is conditional for executive officers, including Dr. Benhamou, to the achievement of the three performance criteria below:
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | One-third of the shares allocated to executive officers will only be acquired from the later of the two following dates: (i) expiry of a period of two years from the date of allocation and (ii) inclusion of
the 100th patient in the Viaskin Peanut Phase III clinical trial a maximum of 12 months after the inclusion of the first patient in the trial.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | One-third of the shares allocated to executive officers will only be acquired from the later of the two following dates: (i) expiry of a period of two years from the date of allocation and (ii) approval by the
FDA of the protocol for the Phase III trial of Viaskin Peanut.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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| |  |  | One-third of the shares allocated to executive officers will only be acquired from the later of the two following dates: (i) expiry of a period of two years from the date of allocation and (ii) an increase of
at least 50% for five consecutive days of our share price compared with the closing price of our shares listed on Euronext Paris on the day of the adoption of the 2013 Free Share Plan, or July 25, 2013.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  | It is specified that in the event of a change of control (as defined in Article L. 233-3 of the French Commercial Code), the performance criteria will be considered as definitively achieved.
| |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|(5) | The acquisition of free shares is conditional for executive officers, including Dr. Benhamou, to the achievement of the three performance criteria below:
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | 50% of the shares allocated to executive officers will only be acquired from the later of the two following dates: (i) expiry of a period of two years from the date of allocation and (ii) inclusion of the 100th patient in the Viaskin Peanut Phase III clinical trial at the latest 12 months after the inclusion of the first patient in the trial.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | 50% of the shares allocated to executive officers will only be acquired from the later of the two following dates: (i) expiry of a period of two years from the date of allocation and (ii) approval by the FDA
of the protocol of VIPES Phase III.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | It is specified that in the event of a change of control (as defined in Article L. 233-3 of the French Commercial Code), the performance criteria will be considered as definitively achieved.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  | Dr. Benhamou shall keep 10% of his free shares under the registered form until the cessation of his duties.
| |  | -----------------------------------------------------------------------------------------------------------



|(6) | The acquisition of free shares is conditional for executive officers, including Dr. Benhamou, to the achievement of the three performance criteria below:
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | One-third of the shares allocated to executive officers will not vest until the later of the following two dates: (i) the end of the two year vesting period which runs from 9/30/2015 and (ii) the primary
efficacy endpoint of the Phase III PEPITES trial for Viaskin Peanut.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | One-third of the shares allocated to executive officers will not vest until the later of the following two dates: (i) the end of the two year vesting period which runs from 9/30/2015 and (ii) the primary
efficacy endpoint of the Phase II MILES trial for Viaskin Milk.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | One-third of the shares allocated to executive officers will not vest until the later of the following two dates: (i) the end of the two year vesting period which runs from 9/30/2015 and (ii) the beginning of
clinical testing of another product candidate from the Viaskin platform.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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Unless stated otherwise, the acquisition of the free shares allocated to company employees are not subject to the
achievement of performance criteria.

Administration. Our board of directors has the authority to administer the 2012, 2013, 2014 and 2015
Free Share Plans. Subject to the terms of the plans, our board of directors determines recipients, dates of grant, the number of free shares to be granted and the terms and conditions of the free shares, including the length of their acquisition
period (period starting on the date of grant during which the beneficiary holds a right to acquire shares for free but not any shares yet) and holding period (period starting at the end of the acquisition period when the shares are issued and
definitively acquired and issued but may not be transferred) within the limit determined by the shareholders (in particular the acquisition period is at least two years from the date of grant and the holding period two years from the end of the
acquisition period, it being specified that no holding period will be applicable to the beneficiaries for whom the acquisition period is at least four years for the 2012, 2013 and 2014 Free Share Plans, no additional holding period is applicable for
the 2015 Free Share Plans).

The board of directors has the authority to modify awards outstanding under our 2012, 2013, 2014 and 2015 Free Share Plans
subject to the consent of the beneficiary if such modification is detrimental to him/her, including in particular the authority to release a beneficiary from the continued service condition during the acquisition period after the termination of the
employment.

Free Shares. The free shares granted under our 2012, 2013, 2014 and 2015 Free Share Plans will be definitively acquired at the
end of the acquisition period as set by our board of directors (a minimum of two years) subject to continued service during the acquisition period, except if the board releases a given beneficiary from this condition upon termination of his/her
employment contract. At the end of the acquisition period, the beneficiary will be the owner of the shares. However, during the holding period under the 2012, 2013 and 2014 Free Share Plans (as set by our board of directors with a minimum of two
years except if the acquisition period is at least equal to four years), the shares may not be sold, transferred or pledged. Under the 2015 Free Share Plans, the granted free shares may be sold, subject to the regulations governing companies whose
shares are traded on a regulated market, as soon as the shares vest. The free shares allocated to the beneficiaries will be new ordinary shares and will immediately have the same rights as the existing company shares.

In the event of disability before the end of the acquisition period, the free shares shall be definitively acquired by the beneficiary on the date of
disability. In the event the beneficiary dies during the acquisition period, the free shares shall be acquired at the date of the request of allocation made by his or her beneficiaries in the framework of the inheritance provided that such request
is made within six months from the date of death.

Under the 2015 Free Share Plans, in the event of a change of control of the company, the beneficiaries
will remain eligible for the allocation at the end of each respective vesting period, even if the beneficiarys employment contract and/or corporate mandate is terminated for any reason, between the date of the takeover and the last day of the
vesting period. In this scenario, the shares will automatically vest and are not subject to the achievement of performance criteria.

Amendment and
Termination. Our board of directors has the authority to amend, alter, suspend, or terminate our 2012, 2013, 2014 and 2015 Free Share Plans, provided that such action does not impair the rights of any beneficiary without such
beneficiarys consent. The company shall obtain shareholder approval of any amendment to the extent necessary and desirable to comply with applicable laws.



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C. Board Practices.

We currently have seven directors, less than a majority of whom are citizens or residents of the United States. Under French law and our by-laws, our
board of directors must be composed of between three and 18 members. Within this limit, the number of directors is determined by our shareholders. Directors are elected, re-elected and may be removed at a shareholders general meeting with a
simple majority vote of our shareholders. Pursuant to our by-laws, our directors are elected for two-year terms. In accordance with French law, our by-laws also provide that our directors may be removed with or without cause by the affirmative vote
of the holders of at least a majority of the votes of the shareholders present, represented by a proxy or voting by mail at the relevant ordinary shareholders meeting, and that any vacancy on our board of directors resulting from the death or
resignation of a director, provided there are at least three directors remaining, may be filled by vote of a majority of our directors then in office provided that there has been no shareholders meeting since such death or resignation. Directors
chosen or appointed to fill a vacancy shall be elected by the board of directors for the remaining duration of the current term of the replaced director. The appointment must then be ratified at the next shareholders general meeting. In the
event the board of directors would be composed of less than three directors as a result of a vacancy, the remaining directors shall immediately convene a shareholders general meeting to elect one or several new directors so there are at least
three directors serving on the board of directors, in accordance with French law.

The following table sets forth the names of our directors, the years of
their initial appointment as directors and the expiration dates of their current term.



|                      |  |                  |  |                            |  |                    
|--------------------- |  | ---------------- |  | -------------------------- |  | -------------------
|Name                  |  | Current Position |  | Year of InitialAppointment |  | TermExpiration Year
|Pierre-Henri Benhamou |  | Chairman         |  | 2005                       |  | 2016               
|Torbjörn Bjerke       |  | Director         |  | 2006                       |  | 2016               
|Michael J. Goller(1)  |  | Director         |  | 2015                       |  | 2016               
|George Horner III     |  | Director         |  | 2010                       |  | 2016               
|Chahra Louafi(2)      |  | Director         |  | 2010                       |  | 2016               
|Daniel Soland(3)      |  | Director         |  | 2015                       |  | 2016               



|(1) | Appointed on October 21, 2015, in replacement of Rafaèle Tordjman from Sofinnova Partners who resigned from the board of directors as of October 21, 2015.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | From December 2010 to July 2014, Ms. Louafi served on our board of directors as representative of Bpifrance Investissement, the legal entity that previously held this board seat. Since July 2014, Ms. Louafi
has served as a member of our board of directors.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(3) | Appointed on March 6, 2015 in replacement of Didier Hoch who had resigned.
|--- | --------------------------------------------------------------------------

In addition,
Ms. Maïlys Ferrère was appointed as a non-voting observer pursuant to a shareholders agreement and her current term expires in 2016.

Director Independence

As a
foreign private issuer, under the listing requirements and rules of Nasdaq, we are not required to have independent directors on our board of directors, except to the extent that our audit committee is required to consistent of independent
requirements, subject to certain phase-in schedules. However, our board of directors has determined that, under current listing requirements and rules of Nasdaq (which we are not subject to) and taking account any applicable committee independence
standards, Torbjörn Bjerke, George Horner III and Daniel Soland are independent directors. In making such determination, our board of directors considered the relationships that each non-employee director has with us and all other
facts and circumstances our board of directors deemed relevant in determining the directors independence, including the number of ordinary shares beneficially owned by the director and his or her affiliated entities (if any).

Role of the Board in Risk Oversight

Our board of directors is primarily responsible for the oversight of our risk management activities and has delegated to the audit committee the responsibility
to assist our board in this task. While our board oversees our risk management, our management is responsible for day-to-day risk management processes. Our board of directors expects our management to consider risk and risk management in each
business decision, to proactively develop and monitor risk management strategies and processes for day-to-day activities and to effectively implement risk management strategies adopted by the board of directors. We believe this division of
responsibilities is the most effective approach for addressing the risks we face.



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Corporate Governance Practices

As a French société anonyme, we are subject to various corporate governance requirements under French law. In addition, as a foreign private
issuer listed on the Nasdaq Global Select Market, we are subject to the Nasdaq corporate governance listing standards. However, the Nasdaq Global Select Markets listing standards provide that foreign private issuers are permitted to follow
home country corporate governance practices in lieu of the Nasdaq rules, with certain exceptions. We currently rely on the certain exemptions for foreign private issuers and follow French corporate governance practices in lieu of the Nasdaq
corporate governance rules, including Nasdaq corporate governance rules that state (1) a majority of the board of directors consists of independent directors; (2) establishing a nominating and corporate governance committee; (3) the
compensation committee be composed entirely of independent directors; and (4) separate executive sessions of independent directors and non-management directors held by the company at least twice per year.

As a foreign private issuer, we are required to comply with Rule 10A-3 of the Exchange Act relating to audit committee composition and responsibilities.
Rule 10A-3 provides that the audit committee must have direct responsibility for the nomination, compensation and choice of our auditors, as well as control over the performance of their duties, management of complaints made, and selection of
consultants. However, if the laws of a foreign private issuers home country require that any such matter be approved by the board of directors or the shareholders, the audit committees responsibilities or powers with respect to such
matter may instead be advisory. Under French law, the audit committee may only have an advisory role and appointment of our statutory auditors, in particular, must be decided by the shareholders at our general shareholders meeting.

In addition, Nasdaq rules require that a listed company specify that the quorum for any meeting of the holders of common stock be at least 331/3% of the outstanding shares of the companys common voting stock. Consistent with French law, our by-laws provide that a quorum
requires the presence of shareholders having at least (1) 20% of the shares entitled to vote in the case of an ordinary shareholders general meeting or at an extraordinary shareholders general meeting where shareholders are voting
on a capital increase by capitalization of reserves, profits or share premium, or (2) 25% of the shares entitled to vote in the case of any other extraordinary shareholders general meeting. If a quorum is not present, the meeting is
adjourned. There is no quorum requirement when an ordinary general meeting is reconvened, but the reconvened meeting may consider only questions which were on the agenda of the adjourned meeting. When an extraordinary general meeting is reconvened,
the quorum required is 20% of the shares entitled to vote, except where the reconvened meeting is considering capital increases through capitalization of reserves, profits or share premium. For these matters, no quorum is required at the reconvened
meeting. If a quorum is not present at a reconvened meeting requiring a quorum, then the meeting may be adjourned for a maximum of two months. See Item 10.BMemorandum and Articles of Association.

Board Committees

The board of
directors has established an audit committee and a compensation committee, which operate pursuant to a unique charter adopted by our board of directors. The composition and functioning of all of our committees will comply with all applicable
requirements of the French Commercial Code, the Exchange Act, the exchange on which the ADSs are listed, and SEC rules and regulations.

In accordance
with French law, committees of our board of directors will only have an advisory role and can only make recommendations to our board of directors. As a result, decisions will be made by our board of directors taking into account non-binding
recommendations of the relevant board committee.

Audit Committee. Our audit committee reviews our internal accounting
procedures, consults with and reviews the services provided by our independent registered public accountants and assists our board of directors in its oversight of our corporate accounting and financial reporting. Dr. Bjerke and
Messrs. Horner and Soland currently serve on our audit committee. Dr. Bjerke is the chairperson of our audit committee. Our board has determined that each of Dr. Bjerke, Messrs. Horner and Soland is independent within the meaning
of the applicable listing rules and the independence requirements contemplated by Rule 10A-3 under the Exchange Act. Our board of directors has further determined that Dr. Bjerke is an audit committee financial expert as defined by
SEC rules and regulations and that each of Messrs. Horner and Soland qualifies as financially sophisticated under the applicable exchange listing rules. The principal duties and responsibilities of our audit committee include (1) analyzing
economic and financial information, (2) ensuring the accuracy and honesty of the our companys financial statements, as well as the quality of the information provided, and (3) monitoring the existence and effectiveness of our
companys accounting, internal controls and auditing matters.



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Our board of directors has specifically assigned the following duties to the audit committee:



| |  |  | with regard to our financial statements:
| | - |  | ----------------------------------------



| |  |  | examine and verify our draft budgets and draft annual and interim financial statements before the board meets;
| | - |  | --------------------------------------------------------------------------------------------------------------



| |  |  | with regard to the annual and interim financial statements, meet with the companys statutory auditors outside of the presence of the company management in order to assist the board in its review of the
Companys accounting, internal controls and auditing matters;
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | evaluate and contribute to defining the applicable accounting, financial or ethical standards to be implemented by us, and prevent any potential violations in applying these standards;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | examine draft comments, announcements and financial communications on the financial statements;
| | - |  | -----------------------------------------------------------------------------------------------



| |  |  | provide specific advice to our financial team at our companys request.
| | - |  | -----------------------------------------------------------------------



| |  |  | with regard to our external control system:
| | - |  | -------------------------------------------



| |  |  | assess proposed nominations for our statutory auditors and their compensation, including an assessment of their independence, after receiving competitive bids; and
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | each year, with the statutory auditors, examine their action plans, findings and recommendations, as well as the follow-up given to them.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------



| |  |  | with regard to our internal control and audit systems:
| | - |  | ------------------------------------------------------



| |  |  | evaluate and verify the companys internal control systems with internal control managers; and
| | - |  | ----------------------------------------------------------------------------------------------



| |  |  | examine and verify the audit programs and action plans with them, the findings of these interventions and actions, and make recommendations.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | with regard to treasury:
| | - |  | ------------------------



| |  |  | examine and verify general treasury policy (investments and borrowings, risk-hedging tools) and our cash situation.
| | - |  | -------------------------------------------------------------------------------------------------------------------

Compensation Committee. Our compensation committee assists our board of directors in reviewing and making recommendations to our
board of directors with respect to the compensation of our executive officers and directors. Dr. Bjerke and Messrs. Horner and Soland currently serve on the compensation committee. Mr. Horner is the chairperson of our compensation
committee. The principal duties and responsibilities of our compensation committee include:



| |  |  | proposing all elements of the total compensation, including retirement and provident plans, supplemental retirement plans, benefits in kind, and miscellaneous equity compensation for our executive officers and members
of our executive committee;
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | being informed by the company on a regular basis of the recruitment of the principal members of the management of the company other than the Chief Executive Officer, as well as review of the initial offer of and all
subsequent changes to the elements of managements proposed compensation;
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | providing its opinion on the companys broad strategy in terms of compensation policies;
| | - |  | ----------------------------------------------------------------------------------------



| |  |  | as applicable, proposing directors attendance fees to be submitted to the general shareholders meeting, as well as their appropriate distribution among board members;
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | providing its opinion on the principles set by us with regard to profit sharing and shareholding; and
| | - |  | -----------------------------------------------------------------------------------------------------



| |  |  | providing its opinion on funds allocated to board members elected by the employees, if applicable.
| | - |  | --------------------------------------------------------------------------------------------------



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|D. | Employees.
|-- | ----------

As of December 31, 2015, we had 91 employees. We consider our labor
relations to be good. At each date shown, we had the following employees, broken out by department and geography:



|                                                |  |                 |    |  |      |  |    |      |  |  |    | 
|----------------------------------------------- |  | --------------- | -- |  | ---- |  | -- | ---- |  |  | -- | 
|                                                |  | At December 31, |   
|                                                |  | 2013            |    |  | 2014 |  |    | 2015 | 
|Function:                                       |  |                 |    |  |      |  |    |      |  |  |    | 
|Pre-clinical development and regulatory affairs |  |                 | 5  |  |      |  | 6  |      |  |  | 14 | 
|Clinical development                            |  |                 | 4  |  |      |  | 5  |      |  |  | 8  | 
|Research                                        |  |                 | 18 |  |      |  | 24 |      |  |  | 36 | 
|Engineering and production                      |  |                 | 6  |  |      |  | 7  |      |  |  | 14 | 
|Management and administration                   |  |                 | 11 |  |      |  | 14 |      |  |  | 18 | 
|U.S. marketing                                  |  |                 |   |  |      |  |   |      |  |  | 1  | 
|Total                                           |  |                 | 44 |  |      |  | 56 |      |  |  | 91 | 
|Geography:                                      |  |                 |    |  |      |  |    |      |  |  |    | 
|France                                          |  |                 | 44 |  |      |  | 55 |      |  |  | 86 | 
|United States                                   |  |                 |   |  |      |  | 1  |      |  |  | 5  | 
|Total                                           |  |                 | 44 |  |      |  | 56 |      |  |  | 91 | 



|E. | Share Ownership.
|-- | ----------------

For information regarding the share ownership of our directors and executive officers,
see Item 6.BCompensation and Item 7.AMajor Shareholders.



|Item 7. | Major Shareholders and Related Party Transactions
|------- | -------------------------------------------------



|A. | Major shareholders.
|-- | -------------------

The following table sets forth information with respect to the beneficial ownership
of our ordinary shares as of April 6, 2016 for:



| |  |  | each beneficial owner of more than five percent (5%) of our outstanding ordinary shares;
| | - |  | ----------------------------------------------------------------------------------------



| |  |  | our Chief Executive Officer and Chief Operating Officer;
| | - |  | --------------------------------------------------------



| |  |  | each of our directors; and
| | - |  | --------------------------



| |  |  | all of our directors and executive officers as a group.
| | - |  | -------------------------------------------------------

Beneficial ownership is determined in accordance with
the rules of the SEC. These rules generally attribute beneficial ownership of securities to persons who possess sole or shared voting power or investment power with respect to those securities and include ordinary shares that can be acquired within
60 days of April 6, 2016. The percentage ownership information shown in the table is based upon 24,205,129 ordinary shares outstanding as of April 6, 2016.

Except as otherwise indicated, all of the shares reflected in the table are ordinary shares and all persons listed below have sole voting and investment power
with respect to the shares beneficially owned by them, subject to applicable community property laws. The information is not necessarily indicative of beneficial ownership for any other purpose.



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In computing the number of ordinary shares beneficially owned by a person and the percentage ownership of that
person, we deemed outstanding ordinary shares subject to options and warrants held by that person that are immediately exercisable or exercisable within 60 days of April 6, 2016. We did not deem these shares outstanding, however, for the
purpose of computing the percentage ownership of any other person. Beneficial ownership representing less than 1% is denoted with an asterisk (*). The information in the table below is based on information known to us or ascertained by us from
public filings made by the shareholders. Except as otherwise indicated in the table below, addresses of the directors, executive officers and named beneficial owners are in care of DBV Technologies S.A., 177-181 avenue Pierre Brossolette, 92120
Montrouge, France.



|                                                                 |  |                         |           |  |            |  |       |  
|---------------------------------------------------------------- |  | ----------------------- | --------- |  | ---------- |  | ----- | -
|                                                                 |  | SharesBeneficiallyOwned |          
|                                                                 |  | Number                  |           |  | Percentage | 
|5% Shareholders:                                                 |  |                         |           |  |            |  |       |  
|Entities affiliated with
Bpifrance(1)                            |  |                         | 2,212,259 |  |            |  | 9.14  | %
|Entities affiliated with Baker Bros. Advisors
LP(2)              |  |                         | 3,631,589 |  |            |  | 15.00 |  
|Entities affiliated with FMR LLC(3)                              |  |                         | 2,412,324 |  |            |  | 9.97  |  
|Entities affiliated with Morgan
Stanley(4)                       |  |                         | 1,342,093 |  |            |  | 5.54  |  
|Janus Capital Management LLC(5)                                  |  |                         | 1,534,932 |  |            |  | 6.34  |  
|Directors and Executive Officers:                                |  |                         |           |  |            |  |       |  
|Pierre-Henri Benhamou(6)                                         |  |                         | 513,191   |  |            |  | 2.11  |  
|David Schilansky(7)                                              |  |                         | 198,510   |  |            |  | *     |  
|Torbjörn Bjerke(8)                                               |  |                         | 35,925    |  |            |  | *     |  
|Michael J. Goller(9)                                             |  |                         | 7,500     |  |            |  | *     |  
|George Horner III(10)                                            |  |                         | 52,650    |  |            |  | *     |  
|Chahra Louafi(11)                                                |  |                         | 2,212,259 |  |            |  | 9.14  |  
|Daniel Soland(12)                                                |  |                         | 20,000    |  |            |  | *     |  
|All directors and executive officers as a group (10 persons)(13) |  |                         | 3,761,896 |  |            |  | 15.31 | %



|(1) | The information shown is based upon a share ownership declaration we received on July 21, 2015 from Bpifrance Participations S.A., or BpiP, and Bpifrance Investissement, or BpiI . Consists of 1,291,067 shares held
by BpiP and 921,192 shares held by Innobio FCPR, or Innobio. BpiP is the wholly-owned subsidiary of SA BPI-Groupe, or BPI. The Caisse des Dépôts et Consignations, or CDC, and EPIC BPI-Groupe, or EPIC, each hold 50% of the share capital
of BPI and jointly control BPI. Innobio is managed by BpiI. BpiI is a wholly-owned, indirect subsidiary of BpiP. Nicolas Dufourcq is the Chief Executive Officer of BpiP and the President and Chairman of the Board of Directors of BpiI and may be
deemed to have shared voting and investment power over the shares held by Innobio and BpiP. Paul-François Fournier is the director of the Innovation Business Unit of BpiP and BpiI and may be deemed to have shared voting and investment power
over the shares held by BpiP and Innobio. Maïlys Ferrère is the director of the Large Venture Division of BpiP and may be deemed to have shared voting and investment power over the shares held by BpiP and Innobio. Laurent Arthaud is the
director of Innobio and may be deemed to have shared voting and investment power over the shares held by BpiP and Innobio. None of BPI, CDC, EPIC, BpiI, Mr. Dufourcq, Mr. Fournier, Mr. Arthaud or Ms. Ferrère hold any
shares directly. BPI may be deemed to be the beneficial owner of 2,516,186 shares, indirectly through its sole ownership of BpiP and its indirect ownership of Innobio. CDC and EPIC may be deemed to be the beneficial owners of 1,394,994 shares,
indirectly through their joint ownership and control of BPI. BpiI, Mr. Dufourcq, Mr. Fournier and Mr. Arthaud may be deemed to be the beneficial owners of 1,121,192 shares through their control of Innobio. Mr. Dufourcq,
Mr. Fournier, Mr. Arthaud and Ms. Ferrère disclaim beneficial ownership of such shares except to the extent of any pecuniary interest therein. The principal address for BpiP, BPI, EPIC, Innobio, BpiI, Mr. Dufourcq,
Mr. Fournier, Mr. Arthaud and Ms. Ferrère is 27-31, avenue du Général Leclerc, 94710 Maisons-Alfort Cedex, France.
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | The information is based solely on a Schedule 13D/A filed by Baker Bros. Advisors LP, Baker Bros. Advisors (GP) LLC, Felix J. Baker and Julian C. Baker on February 16, 2016. Consists of (a) 3,319,458 ordinary
shares directly held by Baker Brothers Life Sciences, L.P., (b) 304,631 ordinary shares directly held by 667, L.P. and (c) 7,500 ordinary shares issuable upon the exercise of options and warrants that are immediately exercisable or
exercisable within 60 days of April 6, 2016, subject to French law. Baker Bros. Advisor LP is the investment advisor of each of these funds and has sole voting and investment power with respect to the shares held by Baker Brothers Life
Sciences, L.P. and 667, L.P. Baker Bros. Advisors (GP) LLC is the sole general partner of Baker Bros. Advisors LP. The managing members of Baker Bros. Advisors (GP) LLC are Julian C. Baker and Felix J. Baker. Julian C. Baker and Felix J. Baker
disclaim beneficial ownership of all securities except to the extent of their pecuniary interest. The address for each of these entities is 667 Madison Avenue, 21st Floor, New York, New York 10065.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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|(3) | This information is based solely on a Schedule 13G filed by FMR LLC and Abigail P. Johnson on February 12, 2016. All 2,412,324 ordinary shares are beneficially owned by FMR LLC. Abigail P. Johnson is a Director,
the Vice Chairman, the Chief Executive Officer and the President of FMR LLC. Members of the Johnson family, including Abigail P. Johnson, are the predominant owners, directly or through trusts, of Series B voting common shares of FMR LLC,
representing 49% of the voting power of FMR LLC. The Johnson family group and all other Series B shareholders have entered into a shareholders voting agreement under which all Series B voting common shares will be voted in accordance with the
majority vote of Series B voting common shares. Accordingly, through their ownership of voting common shares and the execution of the shareholders voting agreement, members of the Johnson family may be deemed, under the Investment Company Act
of 1940, to form a controlling group with respect to FMR LLC. Neither FMR LLC nor Abigail P. Johnson has the sole power to vote or direct the voting of the shares owned directly by the various investment companies registered under the Investment
Company Act, or Fidelity Funds, advised by Fidelity Management & Research Company, or FMR Co, a wholly owned subsidiary of FMR LLC, which power resides with the Fidelity Funds Boards of Trustees. Fidelity Management &
Research Company carries out the voting of the shares under written guidelines established by the Fidelity Funds Boards of Trustees. The principal business address for FMR LLC and Abigail P. Johnson is 245 Summer Street, Boston, Massachusetts
02210.
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(4) | This information is based solely on a Schedule 13G jointly filed by Morgan Stanley and Morgan Stanley & Co. International plc on February 12, 2016. Morgan Stanley beneficially owns 1,342,093 shares. It has
sole voting power with respect to 1,334,502 of such shares, shared voting power with respect to 7,429 of such shares and shared dispositive power with respect to all 1,342,093 shares. Morgan Stanley & Co. International plc beneficially owns
1,287,265 shares. It has sole voting power with respect to 1,287,265 of such shares and shared dispositive power with respect to all 1,287,265 shares. The securities being reported on by Morgan Stanley as a parent holding company are owned, or may
be deemed to be beneficially owned, by Morgan Stanley & Co. International plc, a broker dealer registered under Section 15 of the Securities Exchange Act of 1934, as amended. Morgan Stanley & Co. International plc is a
wholly-owned subsidiary of Morgan Stanley. The principal business address for Morgan Stanley is 1585 Broadway, New York, New York 10036. The principal business address for Morgan Stanley & Co. International plc is 25 Cabot Square, Canary
Wharf, London E14 4QA, England.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(5) | This information is based solely on a Schedule 13G filed by Janus Capital Management LLC, or Janus Capital, on February 16, 2016. Janus Capital has sole dispositive power with respect to an aggregate of 1,534,932
ordinary shares in its capacity as an investment adviser in accordance with Rule 13d-1(b)(ii)(E) under the Exchange Act and as a parent holding company or control person in accordance with Rule 13d-1(b)(ii)(G) under the Exchange Act. The principal
business address for Janus Capital is 151 Detroit Street, Denver, Colorado 80206.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(6) | Consists of (a) 443,711 shares and (b) 69,480 shares issuable upon the exercise of options and warrants that are immediately exercisable or exercisable within 60 days of April 6, 2016, subject to French
law.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(7) | Consists of (a) 150,875 shares and (b) 47,635 shares issuable upon the exercise of options and warrants that are immediately exercisable or exercisable within 60 days of April 6, 2016, subject to French
law.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(8) | Consists of shares issuable upon the exercise of options and warrants that are immediately exercisable or exercisable within 60 days of April 6, 2016, subject to French law.
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(9) | Consists of shares issuable upon the exercise of warrants that are immediately exercisable or exercisable within 60 days of April 6, 2016, subject to French law. Mr. Goller has neither voting nor dispositive
power and has no direct pecuniary interest in these securities. He has entered into an agreement with Baker Bros. Advisors LP related to his beneficial ownership of our securities, as disclosed in a Schedule 13D/A filed by Baker Bros. Advisors LP,
Baker Bros. Advisors (GP) LLC, Felix J. Baker and Julian C. Baker on February 16, 2016.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(10) | Consists of (a) 45,150 shares held and (b) 7,500 shares issuable upon the exercise of options and warrants that are immediately exercisable or exercisable within 60 days of April 6, 2016, subject to
French law.
|---- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(11) | Consists of shares described in note (1) above. Ms. Louafi is an Investment Director of Bpifrance Investissement. Ms. Louafi disclaims beneficial ownership of such shares except to the extent of any
pecuniary interest therein. Ms. Louafis business address is 27-31, avenue du Général Leclerc, 94710 Maisons-Alfort Cedex, France.
|---- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(12) | Consists of (a) 2,500 shares and (b) 17,500 shares issuable upon the exercise of options and warrants that are immediately exercisable or exercisable within 60 days of April 6, 2016, subject to French
law.
|---- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(13) | Includes 360,905 shares issuable upon the exercise of options and warrants that are immediately exercisable or exercisable within 60 days of April 6, 2016, subject to French law.
|---- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

The significant changes in the percentage ownership held by our principal shareholders since January 1, 2013 are as a result of the transactions
described in our prospectuses dated October 22, 2014 and July 15, 2015, each filed with the SEC pursuant to Rule 424(b), under the heading Related Party TransactionsTransactions with Our Principal Shareholders and the
dilution resulting from our underwritten public offerings in October 2014 and July 2015. None of our principal shareholders have voting rights different than our other shareholders.

As of September 30, 2015, we estimate that approximately 61.0% of our outstanding ordinary shares (including ordinary shares in the form of ADSs) were
held in the United States by 57 holders of record. The actual number of holders is greater than these numbers of record holders, and includes beneficial owners whose ordinary shares or ADSs are held in street name by brokers and other nominees. This
number of holders of record also does not include holders whose shares may be held in trust by other entities.



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B. Related Party Transactions.

Since January 1, 2015, we have engaged in the following transactions with our directors, executive officers and holders of more than five percent
(5%) of our outstanding voting securities and their affiliates, which we refer to as our related-parties.

Shareholders
Agreement

On March 9, 2012, Dr. Benhamou, PHYS Participations, Mr. Dupont, DBCS Participations, Bpifrance Participations (formerly
Fonds Strategique dInvestissement) and our company entered into a shareholders agreement pursuant to which: (1) the parties entered into certain lock-up undertakings, which expired at the end of March 2016; (2) Bpifrance
Participations is entitled to propose the appointment of one member of the board of directors (Dr. Didier Hoch was appointed, but resigned on February 16, 2015), which member shall serve on one of the boards committees, (3) Bpifrance
Participations is entitled to propose the appointment of one non-voting observer (currently, Ms. Maïlys Ferrère), and (4) Bpifrance Participations is entitled to certain information rights, subject to applicable laws and
regulation. This shareholders agreement has a 10-year term and will automatically terminate if Bpifrance Participations ceases to hold at least 50% of the shares it held upon the first listing of the company on Euronext Paris.

Agreements with Our Directors and Executive Officers

Employment Arrangements

Pierre-Henri Benhamou

Dr. Benhamou,
our Chief Executive Officer, does not have an employment agreement with the company. His compensation is determined annually by the board of directors upon recommendation of the compensation committee. On September 25, 2012, our board of
directors resolved to provide certain benefits to Dr. Benhamou, which were subsequently amended in April 6, 2016 and are currently set as follows: in the case of termination of Dr. Benhamous term as Chief Executive Officer of
the company, for any reason whatsoever, except in cases of termination or non-renewal of Dr. Benhamous employment against his will resulting from a violation of the law or our by-laws or gross or severe negligence, the company agrees to
pay him severance, the gross amount of which will be equal to the sum of the gross compensation he received from the company, of any kind whatsoever, over the 18 months preceding his termination if at least two of the following three criteria are
met as of the date of his termination: (a) a management structure is in place permitting sale or collaboration involving Viaskin Peanut, with this criteria being considered as met if, on the date of his termination, all of the following
positions are actually filled: technical director, director of development, financial director, head of strategic marketing and head of research; (b) stock market capitalization of the company equals to at least 80 million; (c) at
least three Viaskin projects are in the process of development. In accordance with article L225-42-1 of the French Commercial Code, this commitment of severance shall be submitted for shareholder approval at our ordinary shareholders general
meeting to be held on June 21, 2016 within the terms of a specific resolution.

We have entered into employment agreements with the following
executive officers:

Bertrand Dupont

In January 2003, we entered into an employment agreement with Mr. Dupont, our current Senior Executive Vice President, Technology, which was amended as of
January 1, 2006. He is entitled to an annual base salary. Mr. Dupont is also eligible to receive equity grants as our board may determine and to participate in our bonus plan. In addition, his employment agreement provides for restrictions
on certain competitive activities during the one-year period following the date of termination of his employment subject to the payment by us of a monthly compensation equal to 33% of the monthly gross salary paid to Mr. Dupont prior to his
termination.

David Schilansky

In
September 2011, we entered into an employment agreement with Mr. Schilansky, our Chief Operating Officer, with an effective date as of September 30, 2011. He is entitled to an annual base salary. Mr. Schilansky is also eligible to
receive equity grants as our board may determine and to participate in our bonus plan.

Charles Ruban

In May 2012, we entered into an employment agreement with Mr. Ruban, our then Chief Development Officer and current Chief Commercial Officer, with an
effective date as of May 30, 2012. In July 2015, he entered into an employment agreement with our U.S.



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subsidiary, with an effective date of August 31, 2015. Mr. Rubans French employment agreement has been suspended during the term of his U.S. employment agreement. He is entitled
to an annual base salary. Mr. Ruban is also eligible to receive equity grants as our board may determine and to participate in our bonus plan. He also received a retention bonus and reimbursement of certain relocation expenses, and is eligible
for reimbursement or payment of certain housing, travel and tuition costs. In the event of Mr. Rubans termination without cause or relocation back to France, he is eligible for certain additional benefits.

Laurent Martin

In July 2007, we entered
into an employment agreement with Mr. Martin, our then Senior Executive Vice President, Product Strategy & Regulatory Affairs and current Chief Development Officer. Mr. Martin is entitled to an annual base salary. Mr. Martin
is also eligible to receive equity grants as our board may determine and to participate in our bonus plan.

Director and Executive
Officer Compensation

See Item 6.BCompensation of Directors and Executive Officers for information regarding compensation of
directors and executive officers.

Equity Awards

On March 24, 2015, we issued 10,000 non-employee warrants (BSAs), which were granted to Mr. Soland. Each BSA has been issued at a purchase price per
BSA of 4.30, and gives the right to Mr. Soland to subscribe for one ordinary share for a purchase price per share of 43.00.

On
June 23, 2015, we issued 120,000 option shares, which were granted to employees.

On September 30, 2015 we issued 708,500 free shares, including
120,000 free shares granted to Dr. Benhamou and 170,000 free shares granted to other executive officers.

On November 19, 2015, we issued
195,000 option shares, including 120,000 option shares granted to executive officers.

On November 19, 2015, we issued 15,000 non-employee warrants
(BSAs), which were granted to Messrs. Soland and Horner. Each BSA has been issued at a purchase price per BSA of 6.60, and gives the holder the right to subscribe for one ordinary share for a purchase price per share of 66.06.

On December 15, 2015, we issued 42,000 free shares, which were granted to employees.

On December 15, 2015, we issued 90,000 non-employee warrants (BSAs), which included 7,500 BSAs granted to Mr. Goller. Each BSA has been issued at a
purchase price per BSA of 6.41, and gives the holder the right to subscribe for one ordinary share for a purchase price per share of 64.14.

See Item. 7AMajor Shareholders for information regarding equity awards to our executive officers.

Bonus Plans

All our executive
officers are entitled to a bonus ranging between 40% and 50% based on yearly objectives determined by our board of directors upon recommendation of our compensation committee.

Indemnification Agreements

We
entered into indemnification agreements with each of our directors and executive officers. See Item. 6BLimitations on Liability and Indemnification Matters.



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Insofar as indemnification for liabilities arising under the Securities Act may be permitted to directors,
officers or persons controlling us pursuant to the foregoing provisions, we have been informed that in the opinion of the SEC such indemnification is against public policy as expressed in the Securities Act and is therefore unenforceable.

Related-Party Transactions Policy

We have adopted a
related-party transaction policy that sets forth our procedures for the identification, review, consideration and approval or ratification of related-party transactions. For purposes of our policy only, a related-party transaction is a transaction,
arrangement or relationship, or any series of similar transactions, arrangements or relationships, in which we and any related parties are, were or will be participants, which are not (1) in the ordinary course of business, (2) at
arms length and (3) in which the amount involved exceeds $120,000. Transactions involving compensation for services provided to us as an employee or director are not covered by this policy. For purposes of this policy, a related party is
any executive officer, director (or nominee for director) or beneficial owner of more than five percent (5%) of any class of our voting securities, including any of their immediate family members and any entity owned or controlled by such
persons.

Under the policy, if a transaction has been identified as a related-party transaction, including any transaction that was not a related-party
transaction when originally consummated or any transaction that was not initially identified as a related-party transaction prior to consummation, our management must present information regarding the related-party transaction to our board of
directors for review, consideration and approval. The presentation must include a description of, among other things, the material facts, the interests, direct and indirect, of the related parties, the benefits to us of the transaction and whether
the transaction is on terms that are comparable to the terms available to or from, as the case may be, an unrelated third-party or to or from employees generally. Under the policy, we will collect information that we deem reasonably necessary from
each director, executive officer and, to the extent feasible, significant shareholder to enable us to identify any existing or potential related-party transactions and to effectuate the terms of the policy. In addition, under our Code of Business
Conduct and Ethics, our employees and directors have an affirmative responsibility to disclose any transaction or relationship that reasonably could be expected to give rise to a conflict of interest. In considering related-party transactions, our
board, or to the extent permitted by applicable law an independent body of our board, will take into account the relevant available facts and circumstances including, but not limited to:



| |  |  | the risks, costs and benefits to us;
| | - |  | ------------------------------------



| |  |  | the impact on a directors independence in the event that the related-party is a director, immediate family member of a director or an entity with which a director is affiliated;
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | the availability of other sources for comparable services or products; and
| | - |  | --------------------------------------------------------------------------



| |  |  | the terms available to or from, as the case may be, unrelated third parties or to or from employees generally.
| | - |  | --------------------------------------------------------------------------------------------------------------

The policy requires that, in determining whether to approve, ratify or reject a related-party transaction, our board of directors, or if permitted by
applicable law an independent body of our board of directors, must consider, in light of known circumstances, whether the transaction is in, or is not inconsistent with, our best interests and those of our shareholders, as our board of directors, or
if permitted by applicable law an independent body of our board of directors, determines in the good faith exercise of its discretion.

C. Interests of Experts and Counsel.

Not applicable.



|Item 8. | Financial Information
|------- | ---------------------



|A. | Consolidated Statements and Other Financial Information.
|-- | --------------------------------------------------------

Consolidated Financial Statements

Our consolidated financial statements are appended at the end of this Annual Report, starting at page F-1, and incorporated herein by reference.

Dividend Distribution Policy

We have never declared or
paid any cash dividends on our ordinary shares. We do not anticipate paying cash dividends on our equity securities in the foreseeable future and intend to retain all available funds and any future earnings for use in the operation and expansion of
our business.



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Subject to the requirements of French law and our by-laws, dividends may only be distributed from our
distributable profits, plus any amounts held in our reserves other than those reserves that are specifically required by law. See Item 10. BMemorandum and Articles of Association for further details on the limitations on our
ability to declare and pay dividends. Dividend distributions, if any, will be made in euros and converted into U.S. dollars with respect to the ADSs, as provided in the deposit agreement.

Legal Proceedings

From time to time we may become
involved in legal proceedings or be subject to claims arising in the ordinary course of our business. We are not presently a party to any legal proceedings that, if determined adversely to us, would individually or taken together have a material
adverse effect on our business, results of operations, financial condition or cash flows. Regardless of the outcome, litigation can have an adverse impact on us because of defense and settlement costs, diversion of management resources and other
factors.



|B. | Significant Changes.
|-- | --------------------

Not applicable.



|Item 9. | The Offer and Listing.
|------- | ----------------------



|A. | Offer and Listing Details.
|-- | --------------------------

The ADS have been listed on Nasdaq Global Select Market under the symbol
DBVT since October 22, 2014. Prior to that date, there was no public trading market for ADSs. Our ordinary shares have been trading on Euronext Paris under the symbol DBV since March 28, 2012. Prior to that date,
there was no public trading market for ADSs or our ordinary shares. The following tables set forth for the periods indicated the reported high and low sale prices per ADS on Nasdaq Global Select Market in U.S. dollars and per ordinary share on
Euronext Paris in euros.

Nasdaq Global Select Market



|                                                 |  |         |       |  |     |   |       | 
|------------------------------------------------ |  | ------- | ----- |  | --- | - | ----- | 
|                                                 |  | Per ADS |      
|                                                 |  | High    |       |  | Low |  
|Annual                                           |  |         |       |  |     |   |       | 
|2014 (beginning October 22, 2014)                |  | $       | 28.50 |  |     | $ | 22.20 | 
|2015                                             |  | $       | 44.76 |  |     | $ | 20.26 | 
|Quarterly                                        |  |         |       |  |     |   |       | 
|Fourth Quarter 2014 (beginning October 22, 2014) |  | $       | 28.50 |  |     | $ | 22.20 | 
|First Quarter 2015                               |  | $       | 28.40 |  |     | $ | 20.26 | 
|Second Quarter 2015                              |  | $       | 30.04 |  |     | $ | 23.02 | 
|Third Quarter 2015                               |  | $       | 44.76 |  |     | $ | 29.54 | 
|Fourth Quarter 2015                              |  | $       | 39.84 |  |     | $ | 32.21 | 
|First Quarter 2016                               |  | $       | 36.05 |  |     | $ | 22.55 | 
|Month Ended:                                     |  |         |       |  |     |   |       | 
|November 2015                                    |  | $       | 37.30 |  |     | $ | 33.42 | 
|December 2015                                    |  | $       | 36.71 |  |     | $ | 32.26 | 
|January 2016                                     |  | $       | 36.05 |  |     | $ | 24.23 | 
|February 2016                                    |  | $       | 27.29 |  |     | $ | 22.55 | 
|March 2016                                       |  | $       | 32.94 |  |     | $ | 24.94 | 
|April 2016 (through April 22, 2016)              |  | $       | 37.11 |  |     | $ | 32.37 | 



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Euronext Paris



|                                    |  |      |       |  |     |   |       | 
|----------------------------------- |  | ---- | ----- |  | --- | - | ----- | 
|Period                              |  | High |       |  | Low |  
|Annual                              |  |      |       |  |     |   |       | 
|2012 (beginning March 28, 2012)     |  |     | 9.74  |  |     |  | 7.19  | 
|2013                                |  |     | 12.50 |  |     |  | 7.51  | 
|2014                                |  |     | 44.88 |  |     |  | 10.78 | 
|2015                                |  |     | 83.48 |  |     |  | 37.57 | 
|Quarterly                           |  |      |       |  |     |   |       | 
|First Quarter 2014                  |  |     | 23.50 |  |     |  | 10.78 | 
|Second Quarter 2014                 |  |     | 21.20 |  |     |  | 14.61 | 
|Third Quarter 2014                  |  |     | 37.27 |  |     |  | 18.37 | 
|Fourth Quarter 2014                 |  |     | 44.88 |  |     |  | 32.01 | 
|First Quarter 2015                  |  |     | 47.23 |  |     |  | 37.57 | 
|Second Quarter 2015                 |  |     | 53.47 |  |     |  | 42.01 | 
|Third Quarter 2015                  |  |     | 83.48 |  |     |  | 52.15 | 
|Fourth Quarter 2015                 |  |     | 73.00 |  |     |  | 57.27 | 
|First Quarter 2016                  |  |     | 66.79 |  |     |  | 38.69 | 
|Month Ended                         |  |      |       |  |     |   |       | 
|November 2015                       |  |     | 69.80 |  |     |  | 62.09 | 
|December 2015                       |  |     | 70.99 |  |     |  | 58.26 | 
|January 2016                        |  |     | 66.79 |  |     |  | 42.61 | 
|February 2016                       |  |     | 49.89 |  |     |  | 38.69 | 
|March 2016                          |  |     | 57.99 |  |     |  | 45.58 | 
|April 2016 (through April 22, 2016) |  |     | 64.89 |  |     |  | 56.82 | 

On April 22, 2016, the closing price of the ADSs on Nasdaq was $35.10 per ADS, and the last reported closing price of the
ordinary shares on Euronext Paris was 62.48 per share.



|B. | Plan of Distribution.
|-- | ---------------------

Not applicable.



|C. | Markets.
|-- | --------

The ADS have been listed on Nasdaq under the symbol DBVT since October 22,
2014 and our ordinary shares have been listed on the Euronext Paris under the symbol DBV since March 28, 2012.



|D. | Selling Shareholders.
|-- | ---------------------

Not applicable.



|E. | Dilution.
|-- | ---------

Not applicable.



|F. | Expenses of the Issue.
|-- | ----------------------

Not applicable.



|Item 10. | Additional Information.
|-------- | -----------------------



|A. | Share Capital.
|-- | --------------

Not applicable.



|B. | Memorandum and Articles of Association.
|-- | ---------------------------------------

The information set forth in our prospectus dated July 15,
2015, filed with the SEC pursuant to Rule 424(b), under the headings Description of Share CapitalKey Provisions of Our By-laws and French Law Affecting Our Ordinary Shares, Description of Share CapitalDifferences in
Corporate Law and Limitations Affecting Shareholders of a French Company is incorporated herein by reference.



|C. | Material Contracts.
|-- | -------------------

Underwriting Agreements

We entered into an underwriting agreement among Citigroup Global Markets Inc. and Leerink Partners LLC, as representatives of the underwriters, on
October 22, 2014, with respect to the ADSs and ordinary shares sold in our October 2014 global offering. We have agreed to indemnify the underwriters against certain liabilities, including liabilities under the Securities Act, and to contribute
to payments the underwriters may be required to make in respect of such liabilities.



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We entered into an underwriting agreement among Citigroup Global Markets, Inc., Morgan Stanley & Co.
LLC, Barclays Capital Inc. and Leerink Partners LLC, as representatives of the underwriters, on July 14, 2015, with respect to the ADSs sold in our July 2015 underwritten public offering. We have agreed to indemnify the underwriters against
certain liabilities, including liabilities under the Securities Act, and to contribute to payments the underwriters may be required to make in respect of such liabilities.

For additional information on our material contracts, please see Item 4. Information on the Company, Item 6. Directors, Senior Management and
Employees, and Item 7.B. Related Party Transactions of this Annual Report on 20-F.



|D. | Exchange Controls.
|-- | ------------------

Under current French foreign exchange control regulations there are no limitations
on the amount of cash payments that we may remit to residents of foreign countries. Laws and regulations concerning foreign exchange controls do, however, require that all payments or transfers of funds made by a French resident to a non-resident
such as dividend payments be handled by an accredited intermediary. All registered banks and substantially all credit institutions in France are accredited intermediaries.



|E. | Taxation.
|-- | ---------

Certain Material U.S. Federal Income Tax Considerations

The following is a summary of certain material U.S. federal income tax considerations relating to the ownership and disposition of ADSs by a U.S. holder (as
defined below). This summary addresses only the U.S. federal income tax considerations for U.S. holders of the ADSs that will hold such ADSs as capital assets. This summary does not address all U.S. federal income tax matters that may be relevant to
a particular U.S. holder. This summary does not address tax considerations applicable to a holder of ADSs that may be subject to special tax rules including, without limitation, the following:



| |  |  | banks, financial institutions or insurance companies;
| | - |  | -----------------------------------------------------



| |  |  | brokers, dealers or traders in securities, currencies, commodities, or notional principal contracts;
| | - |  | ----------------------------------------------------------------------------------------------------



| |  |  | tax-exempt entities or organizations, including an individual retirement account or Roth IRA as defined in Section 408 or 408A of the Code (as defined below), respectively;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | real estate investment trusts, regulated investment companies or grantor trusts;
| | - |  | --------------------------------------------------------------------------------



| |  |  | persons that hold the ADSs as part of a hedging, integrated or conversion transaction or as a position in a straddle for U.S. federal income tax purposes;
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | partnerships (including entities classified as partnerships for U.S. federal income tax purposes) or other pass-through entities, or persons that will hold the ADSs through such an entity;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | S corporations;
| | - |  | ---------------



| |  |  | certain former citizens or long term residents of the United States;
| | - |  | --------------------------------------------------------------------



| |  |  | persons that received ADSs as compensation for the performance of services;
| | - |  | ---------------------------------------------------------------------------



| |  |  | persons that acquire ADSs as a result of holding or owning our preferred shares;
| | - |  | --------------------------------------------------------------------------------



| |  |  | holders that own directly, indirectly, or through attribution 10% or more of the voting power or value our ADSs and shares; and
| | - |  | -------------------------------------------------------------------------------------------------------------------------------



| |  |  | holders that have a functional currency other than the U.S. dollar.
| | - |  | ---------------------------------------------------------------------

Further, this summary does
not address the U.S. federal estate, gift, or alternative minimum tax considerations, or any U.S. state, local, or non-U.S. tax considerations of the ownership and disposition of the ADSs.



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This description is based on the U.S. Internal Revenue Code of 1986, as amended (the Code), existing,
proposed and temporary U.S. Treasury Regulations promulgated thereunder and administrative and judicial interpretations thereof, in each case as in effect and available on the date hereof. All the foregoing is subject to change, which change could
apply retroactively, and to differing interpretations, all of which could affect the tax considerations described below. There can be no assurances that the U.S. Internal Revenue Service (the IRS) will not take a position concerning the
tax consequences of the ownership and disposition of the ADSs or that such a position would not be sustained. Holders should consult their own tax advisers concerning the U.S. federal, state, local and non-U.S. tax consequences of owning and
disposing of the ADSs in their particular circumstances.

For the purposes of this summary, a U.S. holder is a beneficial owner of ADSs that
is (or is treated as), for U.S. federal income tax purposes:



| |  |  | an individual who is a citizen or resident of the United States;
| | - |  | ----------------------------------------------------------------



| |  |  | a corporation, or other entity that is treated as a corporation for U.S. federal income tax purposes, created or organized in or under the laws of the United States, any state thereof, or the District of Columbia;
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | an estate, the income of which is subject to U.S. federal income taxation regardless of its source; or
| | - |  | ------------------------------------------------------------------------------------------------------



| |  |  | a trust, if a court within the United States is able to exercise primary supervision over its administration and one or more U.S. persons have the authority to control all of the substantial decisions of such trust or
has a valid election in effect under applicable U.S. Treasury Regulations to be treated as a United States person.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

If a partnership (or any
other entity treated as a partnership for U.S. federal income tax purposes) holds ADSs, the U.S. federal income tax consequences relating to an investment in the ADSs will depend in part upon the status of the partner and the activities of the
partnership. Such a partner or partnership should consult its tax advisor regarding the U.S. federal income tax considerations of owning and disposing of the ADSs in its particular circumstances.

As indicated below, this discussion is subject to U.S. federal income tax rules applicable to a passive foreign investment company, or a PFIC.

Persons considering an investment in the ADSs should consult their own tax advisors as to the particular tax consequences applicable to them relating
to the ownership and disposition of the ADSs, including the applicability of U.S. federal, state and local tax laws and non-U.S. tax laws.

Distributions. Subject to the discussion under Passive Foreign Investment Company Considerations, below, the gross amount of
any distribution (before reduction for any amounts withheld in respect of French withholding tax) actually or constructively received by a U.S. holder with respect to ADSs will be taxable to the U.S. holder as a dividend to the extent of the U.S.
holders pro rata share of our current and accumulated earnings and profits as determined under U.S. federal income tax principles. Distributions in excess of earnings and profits will be non-taxable to the U.S. holder to the extent of, and
will be applied against and reduce, the U.S. holders adjusted tax basis in the ADSs. Distributions in excess of earnings and profits and such adjusted tax basis will generally be taxable to the U.S. holder as either long-term or short-term
capital gain depending upon whether the U.S. holder has held the ADSs for more than one year as of the time such distribution is received. However, since we do not calculate our earnings and profits under U.S. federal income tax principles, it is
expected that any distribution will be reported as a dividend, even if that distribution would otherwise be treated as a non-taxable return of capital or as capital gain under the rules described above. Non-corporate U.S. holders may qualify for the
preferential rates of taxation with respect to dividends on ADSs applicable to long-term capital gains (i.e., gains from the sale of capital assets held for more than one year) applicable to qualified dividend income (as discussed below) if we are a
qualified foreign corporation and certain other requirements (discussed below) are met. A non-United States corporation (other than a corporation that is classified as a PFIC for the taxable year in which the dividend is paid or the
preceding taxable year) generally will be considered to be a qualified foreign corporation (a) if it is eligible for the benefits of a comprehensive tax treaty with the United States which the Secretary of Treasury of the United States
determines is satisfactory for purposes of this provision and which includes an exchange of information provision, or (b) with respect to any dividend it pays on ADSs which are readily tradable on an established securities market in the United
States. The ADSs are listed on the Nasdaq Global Select Market, which is an established securities market in the United States, and we expect the ADSs to be readily tradable on the Nasdaq Global Select Market. However, there can be no assurance that
the ADSs will be considered readily tradable on an established securities market in the United States in the current taxable year or later years. The company, which is incorporated under the laws of France, believes that it qualifies as a resident
of France for purposes of, and is eligible for the benefits of, the Convention between the Government of the United States of America and the Government of the French Republic for the Avoidance of Double Taxation and the Prevention of Fiscal Evasion
with Respect to Taxes on Income and Capital, signed on August 31, 1994, as amended and currently in force, or the U.S.-France Tax Treaty, although there can be no assurance in this regard. Further, the IRS has determined that the U.S.-France
Tax Treaty is



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satisfactory for purposes of the qualified dividend rules and that it includes an exchange-of-information program. Therefore, subject to the discussion under Passive Foreign Investment
Company Considerations, below, such dividends will generally be qualified dividend income in the hands of individual U.S. holders, provided that a holding period requirement (more than 60 days of ownership, without protection
from the risk of loss, during the 121-day period beginning 60 days before the ex-dividend date) and certain other requirements are met. The dividends will not be eligible for the dividends-received deduction generally allowed to corporate U.S.
holders.

A U.S. holder generally may claim the amount of any French withholding tax as either a deduction from gross income or a credit against U.S.
federal income tax liability. However, the foreign tax credit is subject to numerous complex limitations that must be determined and applied on an individual basis. Generally, the credit cannot exceed the proportionate share of a U.S. holders
U.S. federal income tax liability that such U.S. holders taxable income bears to such U.S. holders worldwide taxable income. In applying this limitation, a U.S. holders various items of income and deduction must be classified,
under complex rules, as either foreign source or U.S. source. In addition, this limitation is calculated separately with respect to specific categories of income. The amount of a distribution with respect to the ADSs that is
treated as a dividend may be lower for U.S. federal income tax purposes than it is for French income tax purposes, potentially resulting in a reduced foreign tax credit for the U.S. holder. Each U.S. holder should consult its own tax
advisors regarding the foreign tax credit rules.

In general, the amount of a distribution paid to a U.S. holder in a foreign currency will be the dollar
value of the foreign currency calculated by reference to the spot exchange rate on the day the U.S. holder receives the distribution, regardless of whether the foreign currency is converted into U.S. dollars at that time. Any foreign currency gain
or loss a U.S. holder realizes on a subsequent conversion of foreign currency into U.S. dollars will be U.S. source ordinary income or loss. If dividends received in a foreign currency are converted into U.S. dollars on the day they are received, a
U.S. holder should not be required to recognize foreign currency gain or loss in respect of the dividend.

Sale, Exchange or Other Taxable
Disposition of the ADSs. A U.S. holder will generally recognize gain or loss for U.S. federal income tax purposes upon the sale, exchange or other taxable disposition of ADSs in an amount equal to the difference between the U.S. dollar
value of the amount realized from such sale or exchange and the U.S. holders tax basis for those ADSs. Subject to the discussion under Passive Foreign Investment Company Considerations below, this gain or loss will generally
be a capital gain or loss. The adjusted tax basis in the ADSs generally will be equal to the cost of such ADSs. Capital gain from the sale, exchange or other taxable disposition of ADSs of a non-corporate U.S. holder is generally eligible for a
preferential rate of taxation applicable to capital gains, if the non-corporate U.S. holders holding period determined at the time of such sale, exchange or other taxable disposition for such ADSs exceeds one year (i.e., such gain is long-term
taxable gain). The deductibility of capital losses for U.S. federal income tax purposes is subject to limitations under the Code. Any such gain or loss that a U.S. holder recognizes generally will be treated as U.S. source income or loss for foreign
tax credit limitation purposes.

For a cash basis taxpayer, units of foreign currency paid or received are translated into U.S. dollars at the spot rate
on the settlement date of the purchase or sale. In that case, no foreign currency exchange gain or loss will result from currency fluctuations between the trade date and the settlement date of such a purchase or sale. An accrual basis taxpayer,
however, may elect the same treatment required of cash basis taxpayers with respect to purchases and sales of the ADSs that are traded on an established securities market, provided the election is applied consistently from year to year. Such
election may not be changed without the consent of the IRS. For an accrual basis taxpayer who does not make such election, units of foreign currency paid or received are translated into U.S. dollars at the spot rate on the trade date of the purchase
or sale. Such an accrual basis taxpayer may recognize exchange gain or loss based on currency fluctuations between the trade date and the settlement date. Any foreign currency gain or loss a U.S. Holder realizes will be U.S. source ordinary income
or loss.

Medicare Tax. Certain U.S. holders that are individuals, estates or trusts are subject to a 3.8% tax on all or a portion of their
net investment income, which may include all or a portion of their dividend income and net gains from the disposition of ADSs. Each U.S. holder that is an individual, estate or trust is urged to consult its tax advisors regarding the
applicability of the Medicare tax to its income and gains in respect of its investment in the ADSs.

Passive Foreign Investment Company
Considerations. If we are classified as a passive foreign investment company (PFIC) in any taxable year, a U.S. holder would be subject to special rules generally intended to reduce or eliminate any benefits from the deferral of
U.S. federal income tax that a U.S. holder could derive from investing in a non-U.S. company that does not distribute all of its earnings on a current basis.

A corporation organized outside the United States generally will be classified as a PFIC for U.S. federal income tax purposes in any taxable year in which,
after applying certain look-through rules with respect to the income and assets of its subsidiaries, either: (i) at least 75% of its gross income is passive income or (ii) at least 50% of the average quarterly value of its
total gross assets (which, if we are not a controlled foreign corporation or are publicly traded for the entire year being tested, would be measured by fair market value of our assets, and for which purpose the total value of our assets may be
determined in part by the market value of the ADSs and our ordinary shares, which are subject to change) is attributable to assets that produce passive income or are held for the production of passive income.



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Passive income for this purpose generally includes dividends, interest, royalties, rents, gains from commodities
and securities transactions, the excess of gains over losses from the disposition of assets which produce passive income, and includes amounts derived by reason of the temporary investment of funds raised in offerings of the ADSs. If a non-U.S.
corporation owns directly or indirectly at least 25% by value of the stock of another corporation, the non-U.S. corporation is treated for purposes of the PFIC tests as owning its proportionate share of the assets of the other corporation and as
receiving directly its proportionate share of the other corporations income. If we are classified as a PFIC in any year with respect to which a U.S. holder owns the ADSs, we will continue to be treated as a PFIC with respect to such U.S.
holder in all succeeding years during which the U.S. holder owns the ADSs, regardless of whether we continue to meet the tests described above.

The
market value of our assets may be determined in large part by reference to the market price of the ADSs and our ordinary shares, which is likely to fluctuate after the offering. In addition, the composition of our income and assets will be affected
by how, and how quickly, we use the cash proceeds from the global offering in our business. Whether we are a PFIC for any taxable year will depend on our assets and income in each year, and because this is a factual determination made annually after
the end of each taxable year, there can be no assurance that we will not be considered a PFIC in any taxable year. Although it is not free from doubt, based on the composition of our income for our 2015 taxable year, we believe that we were not a
PFIC for our 2015 taxable year and do not expect to be a PFIC for our 2016 taxable year.

If we are a PFIC, and you are a U.S. holder, then unless you
make one of the elections described below, a special tax regime will apply to both (a) any excess distribution by us to you (generally, your ratable portion of distributions in any year which are greater than 125% of the average
annual distribution received by you in the shorter of the three preceding years or your holding period for the ADSs) and (b) any gain realized on the sale or other disposition of the ADSs. Under this regime, any excess distribution and realized
gain will be treated as ordinary income and will be subject to tax as if (a) the excess distribution or gain had been realized ratably over your holding period, (b) the amount deemed realized in each year had been subject to tax in each
year of that holding period at the highest marginal rate for such year (other than income allocated to the current period or any taxable period before we became a PFIC, which would be subject to tax at the U.S. holders regular ordinary income
rate for the current year and would not be subject to the interest charge discussed below), and (c) the interest charge generally applicable to underpayments of tax had been imposed on the taxes deemed to have been payable in those years. In
addition, dividend distributions made to you will not qualify for the lower rates of taxation applicable to long-term capital gains discussed above under Distributions.

Certain elections exist that may alleviate some of the adverse consequences of PFIC status and would result in an alternative treatment (such as
mark-to-market treatment) of the ADSs. If a U.S. holder makes the mark-to-market election, the U.S. holder generally will recognize as ordinary income any excess of the fair market value of the ADSs at the end of each taxable year over their
adjusted tax basis, and will recognize an ordinary loss in respect of any excess of the adjusted tax basis of the ADSs over their fair market value at the end of the taxable year (but only to the extent of the net amount of income previously
included as a result of the mark-to-market election). If a U.S. holder makes the election, the U.S. holders tax basis in the ADSs will be adjusted to reflect these income or loss amounts. Any gain recognized on the sale or other disposition of
ADSs in a year when we are a PFIC will be treated as ordinary income and any loss will be treated as an ordinary loss (but only to the extent of the net amount of income previously included as a result of the mark-to-market election). The
mark-to-market election is available only if we are a PFIC and the ADSs are regularly traded on a qualified exchange. The ADSs will be treated as regularly traded in any calendar year in which more than a de
minimis quantity of the ADSs are traded on a qualified exchange on at least 15 days during each calendar quarter (subject to the rule that trades that have as one of their principal purposes the meeting of the trading requirement as disregarded).
The Nasdaq Global Select Market is a qualified exchange for this purpose and, consequently, if the ADSs are regularly traded, the mark-to-market election will be available to a U.S. holder.

We do not currently intend to provide the information necessary for U.S. holders to make qualified electing fund elections if we are treated as a PFIC for any
taxable year. U.S. Holders should consult their tax advisors to determine whether any of these elections would be available and if so, what the consequences of the alternative treatments would be in their particular circumstances.

If we are determined to be a PFIC, the general tax treatment for U.S. Holders described in this section would apply to indirect distributions and gains deemed
to be realized by U.S. Holders in respect of any of our subsidiaries that also may be determined to be PFICs.

If a U.S. holder owns ADSs during any
taxable year in which we are a PFIC, the U.S. holder generally will be required to file an IRS Form 8621 (Information Return by a Shareholder of a Passive Foreign Investment Company or Qualified Electing Fund) with respect to the company, generally
with the U.S. holders federal income tax return for that year. If our company were a PFIC for a given taxable year, then you should consult your tax advisor concerning your annual filing requirements.



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The U.S. federal income tax rules relating to PFICs are complex. Prospective U.S. investors are urged to
consult their own tax advisers with respect to the ownership and disposition of the ADSs, the consequences to them of an investment in a PFIC, any elections available with respect to the ADSs and the IRS information reporting obligations with
respect to the ownership and disposition of the ADSs.

Backup Withholding and Information Reporting. U.S. holders generally will be
subject to information reporting requirements with respect to dividends on ADSs and on the proceeds from the sale, exchange or disposition of ADSs that are paid within the United States or through U.S.-related financial intermediaries, unless the
U.S. holder is an exempt recipient. In addition, U.S. holders may be subject to backup withholding on such payments, unless the U.S. holder provides a taxpayer identification number and a duly executed IRS Form W-9 or otherwise
establishes an exemption. Backup withholding is not an additional tax, and the amount of any backup withholding will be allowed as a credit against a U.S. holders U.S. federal income tax liability and may entitle such holder to a refund,
provided that the required information is timely furnished to the IRS.

Foreign Asset Reporting. Certain U.S. holders who are individuals
are required to report information relating to an interest in the ADSs, subject to certain exceptions (including an exception for shares held in accounts maintained by U.S. financial institutions) by filing IRS Form 8938 (Statement of Specified
Foreign Financial Assets) with their federal income tax return. U.S. holders are urged to consult their tax advisors regarding their information reporting obligations, if any, with respect to their ownership and disposition of the ADSs.

THE DISCUSSION ABOVE IS A GENERAL SUMMARY. IT DOES NOT COVER ALL TAX MATTERS THAT MAY BE OF IMPORTANCE TO A PROSPECTIVE INVESTOR. EACH PROSPECTIVE INVESTOR
IS URGED TO CONSULT ITS OWN TAX ADVISOR ABOUT THE TAX CONSEQUENCES TO IT OF AN INVESTMENT IN ADSS IN LIGHT OF THE INVESTORS OWN CIRCUMSTANCES.

French Tax Consequences

The following describes the
material French income tax consequences to U.S. Holders (as defined below) of purchasing, owning and disposing of our ADSs and, unless otherwise noted, this discussion is the opinion of Gide Loyrette Nouel A.A.R.P.I, our French tax counsel, insofar
as it relates to matters of French tax law and legal conclusions with respect to those matters.

This discussion does not purport to be a complete
analysis or listing of all potential tax effects of the acquisition, ownership or disposition of our ADSs to any particular investor, and does not discuss tax considerations that arise from rules of general application or that are generally assumed
to be known by investors. All of the following is subject to change. Such changes could apply retroactively and could affect the consequences described below.

France has recently introduced a comprehensive set of new tax rules applicable to French assets that are held by or in foreign trusts. These rules provide
inter alia for the inclusion of trust assets in the settlors net assets for purpose of applying the French wealth tax, for the application of French gift and death duties to French assets held in trust, for a specific tax on capital on the
French assets of foreign trusts not already subject to the French wealth tax and for a number of French tax reporting and disclosure obligations. The following discussion does not address the French tax consequences applicable to ADSs held in
trusts. If ADSs are held in trust, the grantor, trustee and beneficiary are urged to consult their own tax adviser regarding the specific tax consequences of acquiring, owning and disposing of securities.

The description of the French income tax and wealth tax consequences set forth below is based on the Convention Between the Government of the United States of
America and the Government of the French Republic for the Avoidance of Double Taxation and the Prevention of Fiscal Evasion with Respect to Taxes on Income and Capital of August 31, 1994, or the Treaty, which came into force on
December 30, 1995 (as amended by any subsequent protocols, including the protocol of January 13, 2009), and the tax guidelines issued by the French tax authorities in force as of the date of this Annual Report on Form 20-F (the
Treaty).

For the purposes of this discussion, a U.S. holder is a beneficial owner of ADSs that is (or is treated as), for U.S.
federal income tax purposes: (1) an individual who is a citizen or resident of the United States; (2) a corporation, or other entity that is treated as a corporation for U.S. federal income tax purposes, created or organized in or under
the laws of the United States, any state thereof, or the District of Columbia; (3) an estate, the income of which is subject to U.S. federal income taxation regardless of its source; or (4) a trust, if a court within the United States is
able to exercise primary supervision over its administration and one or more U.S. persons have the authority to control all of the substantial decisions of such trust or has a valid election in effect under applicable U.S. Treasury Regulations to be
treated as a United States person.



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If a partnership (or any other entity treated as partnership for U.S. federal income tax purposes) holds ADSs,
the tax treatment of the partnership and a partner in such partnership generally will depend on the status of the partner and the activities of the partnership. Such partner or partnership is urged to consult its own tax adviser regarding the
specific tax consequences of acquiring, owning and disposing of securities.

This discussion applies only to investors that hold ADS as capital assets
that have the U.S. dollar as their functional currency, that are entitled to Treaty benefits under the Limitation on Benefits provision contained in the Treaty, and whose ownership of the ADS is not effectively connected to a
permanent establishment or a fixed base in France. Certain U.S. Holders (including, but not limited to, U.S. expatriates, partnerships or other entities classified as partnerships for U.S. federal income tax purposes, banks, insurance companies,
regulated investment companies, tax-exempt organizations, financial institutions, persons subject to the alternative minimum tax, persons who acquired the securities pursuant to the exercise of employee share options or otherwise as compensation,
persons that own (directly, indirectly or by attribution) 5% or more of our voting stock or 5% or more of our outstanding share capital, dealers in securities or currencies, persons that elect to mark their securities to market for U.S. federal
income tax purposes and persons holding securities as a position in a synthetic security, straddle or conversion transaction) may be subject to special rules not discussed below.

U.S. Holders are urged to consult their own tax advisers regarding the tax consequences of the purchase, ownership and disposition of securities in light of
their particular circumstances, especially with regard to the Limitations on Benefits provision.

Estate and Gift Taxes and
Transfer Taxes

In general, a transfer of securities by gift or by reason of death of a U.S. Holder that would otherwise be subject to French gift or
inheritance tax, respectively, will not be subject to such French tax by reason of the Convention between the Government of the United States of America and the Government of the French Republic for the Avoidance of Double Taxation and the
Prevention of Fiscal Evasion with Respect to Taxes on Estates, Inheritances and Gifts, dated November 24, 1978, unless the donor or the transferor is domiciled in France at the time of making the gift or at the time of his or her death, or the
securities were used in, or held for use in, the conduct of a business through a permanent establishment or a fixed base in France.

Pursuant to Article
235 ter ZD of the Code général des impôts (French Tax Code, or FTC), purchases of shares or ADSs of a French company listed on a regulated market of the European Union or an exchange formally acknowledged by the French
Financial Market Authority (AMF) are subject to a 0.2% French tax on financial transactions provided that the issuers market capitalization exceeds 1 billion euros as of December 1 of the year preceding the taxation year. Nasdaq is not
currently acknowledged by the French AMF but this may change in the future. A list of French relevant companies whose market capitalization exceeds 1 billion euros as of December 1 of the year preceding the taxation year is published annually
by the French State.

Purchases of our securities may be subject to such tax provided that its market capitalization exceeds 1 billion euros and that
Nasdaq is acknowledged by the French AMF.

In the case where Article 235 ter ZD of the FTC is not applicable, transfers of shares issued by a listed
French company will be subject to uncapped registration duties at the rate of 0.1% if the transfer is evidenced by a written statement (acte) executed either in France or outside France.

Wealth Tax

The French wealth tax (impôt de
solidarité sur la fortune) applies only to individuals and does not generally apply to securities held by an eligible U.S. Holder who is a U.S. resident, as defined pursuant to the provisions of the Treaty, provided that such U.S. Holder
does not own directly or indirectly more than 25% of the issuers financial rights.

Taxation of Dividends

Dividends paid by a French corporation to non-residents of France are generally subject to French withholding tax at a rate of 30%. Dividends paid by a French
corporation in a non-cooperative State or territory, as defined in Article 238-0 A of the FTC, will generally be subject to French withholding tax at a rate of 75%. However, eligible U.S. Holders entitled to Treaty benefits under the
Limitation on Benefits provision contained in the Treaty who are U.S. residents, as defined pursuant to the provisions of the Treaty, will not be subject to this 30% or 75% withholding tax rate, but may be subject to the
withholding tax at a reduced rate (as described below).



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Under the Treaty, the rate of French withholding tax on dividends paid to an eligible U.S. Holder who is a U.S.
resident as defined pursuant to the provisions of the Treaty and whose ownership of the ordinary shares or ADSs is not effectively connected with a permanent establishment or fixed base that such U.S. Holder has in France, is generally reduced to
15%, or to 5% if such U.S. Holder is a corporation and owns directly or indirectly at least 10% of the share capital of the issuer; such U.S. Holder may claim a refund from the French tax authorities of the amount withheld in excess of the Treaty
rates of 15% or 5%, if any.

For U.S. Holders that are not individuals but are U.S. residents, as defined pursuant to the provisions of the Treaty, the
requirements for eligibility for Treaty benefits, including the reduced 5% or 15% withholding tax rates contained in the Limitation on Benefits provision of the Treaty, are complicated, and certain technical changes were made
to these requirements by the protocol of January 13, 2009. U.S. Holders are advised to consult their own tax advisers regarding their eligibility for Treaty benefits in light of their own particular circumstances.

Dividends paid to an eligible U.S. Holder may immediately be subject to the reduced rates of 5% or 15% provided that such holder establishes before the date
of payment that it is a U.S. resident under the Treaty by completing and providing the depositary with a treaty form (Form 5000). Dividends paid to a U.S. Holder that has not filed the Form 5000 before the dividend payment date will be subject to
French withholding tax at the rate of 30%, or 75% if paid in a non-cooperative State or territory (as defined in Article 238-0 A of the FTC), and then reduced at a later date to 5% or 15%, provided that such holder duly completes and provides the
French tax authorities with the treaty forms Form 5000 and Form 5001 before December 31 of the second calendar year following the year during which the dividend is paid. Certain qualifying pension funds and certain other tax-exempt entities are
subject to the same general filing requirements as other U.S. Holders except that they may have to supply additional documentation evidencing their entitlement to these benefits.

Form 5000 and Form 5001, together with instructions, will be provided by the depositary to all U.S. Holders registered with the depositary. The depositary
will arrange for the filing with the French Tax authorities of all such forms properly completed and executed by U.S. Holders of ordinary shares or ADSs and returned to the depositary in sufficient time so that they may be filed with the French tax
authorities before the distribution in order to obtain immediately a reduced withholding tax rate.

The withholding tax refund, if any, ordinarily occurs
within 12 months from filing the applicable French Treasury Form, but not before January 15 of the year following the calendar year in which the related dividend was paid.

Tax on Sale or Other Disposition

In general, under the
Treaty, a U.S. Holder who is a U.S. resident for purposes of the Treaty will not be subject to French tax on any capital gain from the redemption (other than redemption proceeds characterized as dividends under French domestic tax law or
administrative guidelines), sale or exchange of ordinary shares or ADSs unless the ordinary shares or the ADSs form part of the business property of a permanent establishment or fixed base that the U.S. Holder has in France. Special rules apply to
U.S. Holders who are residents of more than one country.



|F. | Dividends and Paying Agents.
|-- | ----------------------------

Not applicable.



|G. | Statement by Experts.
|-- | ---------------------

Not applicable.



|H. | Documents on Display.
|-- | ---------------------

We are subject to the information reporting requirements of the Exchange Act
applicable to foreign private issuers and under those requirements will file reports with the SEC. Those reports may be inspected without charge at the locations described below. As a foreign private issuer, we are exempt from the rules under the
Exchange Act related to the furnishing and content of proxy statements, and our officers, directors and principal shareholders are exempt from the reporting and short-swing profit recovery provisions contained in Section 16 of the Exchange Act.
In addition, we are not required under the Exchange Act to file periodic reports and financial statements with the SEC as frequently or as promptly as United States companies whose securities are registered under the Exchange Act. Nevertheless, we
will file with the SEC an Annual Report on Form 20-F containing financial statements that have been examined and reported on, with and opinion expressed by an independent registered public accounting firm.



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We maintain a corporate website at www.dbv-technologies.com. We intend to post our Annual Report on Form
20-F on our website promptly following it being filed with the SEC. Information contained on, or that can be accessed through, our website does not constitute a part of this Annual Report on Form 20-F. We have included our website address in this
Annual Report on Form 20-F solely as an inactive textual reference.

You may also review a copy of this Annual Report on Form 20-F, including exhibits and
any schedule filed herewith, and obtain copies of such materials at prescribed rates, at the SECs Public Reference Room in Room 1580, 100 F Street, NE, Washington, D.C. 20549-0102. You may obtain information on the operation of the Public
Reference Room by calling the SEC at 1-800-SEC-0330. The Securities and Exchange Commission maintains a website (www.sec.gov) that contains reports, proxy and information statements and other information regarding registrants, such as DBV
Technologies, that file electronically with the SEC.

With respect to references made in this Annual Report on Form 20-F to any contract or other document
of our company, such references are not necessarily complete and you should refer to the exhibits attached or incorporated by reference to this Annual Report on Form 20-F for copies of the actual contract or document.



|I. | Subsidiary Information.
|-- | -----------------------

Not required.



|Item 11. | Quantitative and Qualitative Disclosures About Market Risk.
|-------- | -----------------------------------------------------------

Interest Rate Risk

We seek to engage in prudent management of our cash and cash equivalents, mainly cash on hand and common financial instruments (typically short-
and mid-term deposits). Furthermore, the interest rate risk related to cash, cash equivalents and common financial instruments is not significant based on the quality of the financial institutions with which we work.

Foreign Currency Exchange Risk

We
are exposed to foreign exchange risk inherent in some of our supplies obtained in the United States, which have been invoiced in U.S. dollars. As of this date, we do not have revenues in dollars nor in any other currency other than the euro. Due to
the relatively low level of these expenditures we believe our exposure to foreign exchange risk is unlikely to have a material adverse impact on our results of operations or financial position. Our exposure to currencies other than the U.S. dollar
is negligible.

For 2013, 2014 and 2015, less than 10%, 7% and 7%, respectively, of our purchases and other external expenses have been made in U.S.
dollars, generating a negligible net annual foreign exchange loss of 3 thousands, 24 thousands and 7 thousands, respectively, for those periods. In light of these insignificant amounts, we have not adopted, at this stage, a hedging
mechanism in order to protect our business activity against fluctuations in exchange rates. We cannot rule out the possibility that a significant increase in our business, particularly in the United States, may result in greater exposure to exchange
rate risk and would then consider adopting an appropriate policy for hedging against these risks.

Liquidity Risk

As of this date, we do not believe that we are exposed to a short-term (12 months) liquidity risk, considering the cash and cash equivalents that we have
available as of December 31, 2015 of 323.4 million, which are mainly composed of cash and term deposits that are convertible into cash immediately without penalties in case of a need for cash.

Moreover, we believe that the net proceeds of our July 2015 underwritten public offering, together with our existing cash and cash equivalents, will enable us
to fund our operating expenses and capital expenditure requirements until the end of 2017.

Inflation Risk

We do not believe that inflation has had a material effect on our business, financial condition or results of operations. If our costs were to become subject
to significant inflationary pressures, we may not be able to fully offset such higher costs through price increases. Our inability or failure to do so could harm our business, financial condition and results of operations.



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|Item 12. | Description of Securities Other than Equity Securities.
|-------- | -------------------------------------------------------



|A. | Debt Securities.
|-- | ----------------

Not applicable.



|B. | Warrants and Rights.
|-- | --------------------

Not applicable.



|C. | Other Securities.
|-- | -----------------

Not applicable.



|D. | American Depositary Shares.
|-- | ---------------------------

Citibank, N.A., as depositary, registers and delivers American Depositary
Shares, also referred to as ADSs. Each ADS represents one-half of one ordinary share (or a right to receive one-half of one ordinary share) deposited with Citibank International Plc, located at EGSP 186, 1 North Wall Quay, Dublin 1 Ireland or any
successor, as custodian for the depositary. Each ADS will also represent any other securities, cash or other property which may be held by the depositary in respect of the depositary facility. The depositarys corporate trust office at which
the ADSs will be administered is located at 388 Greenwich Street, New York, New York 10013.

A deposit agreement among us, the depositary and the ADS
holders sets out the ADS holder rights as well as the rights and obligations of the depositary. New York law governs the deposit agreement and the ADSs. A copy of the deposit agreement is incorporated by reference as an exhibit to this Annual Report
on Form 20-F.

Fees and Charges

Pursuant to the
terms of the deposit agreement, the holders of ADSs will be required to pay the following fees:



|                                                                                                       |  |                                                                                             
|------------------------------------------------------------------------------------------------------ |  | --------------------------------------------------------------------------------------------
|Service                                                                                                |  | Fees                                                                                        
|                                                                                                       | 
|    Issuance of ADSs                                                                                  |  | Up to U.S. $0.05 per ADS issued                                                             
|                                                                                                       | 
|    Cancellation of ADSs                                                                              |  | Up to U.S. $0.05 per ADS canceled                                                           
|                                                                                                       | 
|    Distribution of cash dividends or other cash distributions                                        |  | Up to U.S. $0.05 per ADS held                                                               
|                                                                                                       | 
|    Distribution of ADSs pursuant to stock dividends, free stock
distributions or exercise of rights. |  | Up to U.S. $0.05 per ADS held                                                               
|                                                                                                       | 
|    Distribution of securities other than ADSs or rights to purchase
additional ADSs                  |  | Up to U.S. $0.05 per ADS held                                                               
|                                                                                                       | 
|    ADS Services                                                                                      |  | Up to U.S. $0.05 per ADS held on the applicable record date(s) established by the depositary

The holders of ADSs will also be responsible to pay certain fees and expenses incurred by the depositary and certain taxes and
governmental charges such as:



| |  |  | fees for the transfer and registration of ordinary shares charged by the registrar and transfer agent for the ordinary shares in France (i.e., upon deposit and withdrawal of ordinary shares);
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | expenses incurred for converting foreign currency into U.S. dollars;
| | - |  | --------------------------------------------------------------------



| |  |  | expenses for cable, telex and fax transmissions and for delivery of securities;
| | - |  | -------------------------------------------------------------------------------



| |  |  | taxes and duties upon the transfer of securities (i.e., when ordinary shares are deposited or withdrawn from deposit); and
| | - |  | --------------------------------------------------------------------------------------------------------------------------



| |  |  | fees and expenses incurred in connection with the delivery or servicing of ordinary shares on deposit.
| | - |  | ------------------------------------------------------------------------------------------------------

Depositary fees payable upon the issuance and cancellation of ADSs are typically paid to the depositary by the brokers (on behalf of their clients) receiving
the newly issued ADSs from the depositary and by the brokers (on behalf of their clients) delivering the ADSs to the depositary for cancellation. The brokers in turn charge these fees to their clients. Depositary fees payable in connection with
distributions of cash or securities to ADS holders and the depositary services fee are charged by the depositary to the holders of record of ADSs as of the applicable ADS record date.



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The depositary fees payable for cash distributions are generally deducted from the cash being distributed. In the
case of distributions other than cash (i.e., stock dividend, rights), the depositary charges the applicable fee to the ADS record date holders concurrent with the distribution. In the case of ADSs registered in the name of the investor
(whether certificated or uncertificated in direct registration), the depositary sends invoices to the applicable record date ADS holders. In the case of ADSs held in brokerage and custodian accounts (via DTC), the depositary generally collects its
fees through the systems provided by DTC (whose nominee is the registered holder of the ADSs held in DTC) from the brokers and custodians holding ADSs in their DTC accounts. The brokers and custodians who hold their clients ADSs in DTC
accounts in turn charge their clients accounts the amount of the fees paid to the depositary.

In the event of refusal to pay the depositary fees,
the depositary may, under the terms of the deposit agreement, refuse the requested service until payment is received or may set off the amount of the depositary fees from any distribution to be made to the ADS holder.

Note that the fees and charges the holders of ADSs may be required to pay may vary over time and may be changed by us and by the depositary. The holders of
ADSs will receive prior notice of such changes.

The depositary may reimburse us for certain expenses incurred by us in respect of the ADR program
established pursuant to the deposit agreement, by making available a portion of the depositary fees charged in respect of the ADR program or otherwise, upon such terms and conditions as we and the depositary may agree from time to time.

PART II



|Item 13. | Defaults, Dividend Arrearages and Delinquencies.
|-------- | ------------------------------------------------

Not applicable.



|Item 14. | Material Modifications to the Rights of Security Holders and Use of Proceeds.
|-------- | -----------------------------------------------------------------------------

Global Offering

In October 2014, we sold 4,919,498 ADSs, each representing one-half of one ordinary share, nominal value 0.10, and 614,923 ordinary shares, in
our global offering at a price of $21.64 per ADS and 34.00 per share, for aggregate gross proceeds to us of approximately 104.5 million. The net offering proceeds to us, after deducting underwriting discounts and commissions and
offering expenses, was approximately 93.7 million. The offering commenced on October 15, 2014 and did not terminate before all of the securities registered in the registration statement were sold. The effective date of the registration
statement, File No. 333-198870, for our global offering was October 21, 2014. Citigroup Global Markets Inc., Leerink Partners LLC and Bryan, Garnier & Co. acted as joint global coordinators and joint book-running managers of the
global offering.

All of the net proceeds from our global offering have been applied as of the date of this Annual Report and used for general corporate
purposes. None of the net proceeds of our global offering were paid directly or indirectly to any director, officer, general partner of ours or to their associates, persons owning ten percent or more of any class of our equity securities, or to any
of our affiliates.



|Item 15. | Controls and Procedures.
|-------- | ------------------------

Disclosure Controls and Procedures

We maintain disclosure controls and procedures, as such term is defined in Rules 13(a) - 15(e) and 15(d) - 15(e) under the Exchange Act, that are
designed to ensure that information required to be disclosed in the reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the rules and forms of the Securities and
Exchange Commission. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed in our reports filed or submitted under the Exchange Act is accumulated and
communicated to management, including our chief executive officer (principal executive officer) and chief operating officer (principal financial officer), as appropriate, to allow timely decisions regarding required disclosure.

Our management, with the participation of our chief executive officer (principal executive officer) and chief operating officer (principal financial
officer), carried out an evaluation of the effectiveness of our disclosure controls and procedures as of December 31, 2015. Based on that evaluation, management has identified a material weakness associated with the segregation of duties
and therefore, our chief executive officer (principal executive officer) and chief operating officer (principal financial officer) concluded that the companys disclosure controls and procedures were ineffective as of
December 31, 2015.



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Managements Annual Report on Internal Control over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal controls over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f)
under the Exchange Act) and for the assessment of the effectiveness of our internal control over financial reporting. Under the supervision and with the participation of our chief executive officer (principal executive officer) and chief
operating officer (principal financial officer), management assessed our internal control over financial reporting based upon the framework in Internal Control  Integrated Framework (2013) issued by the Committee of Sponsoring
Organizations of the Treadway Commission (COSO). Based on this assessment, we concluded that we had a material weakness because we did not maintain adequate segregation of duties given the size of our finance and accounting team to allow for
appropriate monitoring of financial reporting matters and internal control over financial reporting. We have limited accounting and financial reporting personnel and other resources with which to address our internal controls and procedures. The
material weakness was partially remediated at December 31, 2015, but these new controls were not effective for almost all of 2015. Consequently, our chief executive officer (principal executive officer) and chief operating officer
(principal financial officer) concluded that, due to this material weakness, we did not maintain effective internal control over financial reporting as of December 31, 2015.

A material weakness is a deficiency, or combination of deficiencies, in internal control over financial reporting, such that there is a reasonable possibility
that a material misstatement of our annual or interim financial statements will not be prevented or detected on a timely basis.

This material weakness
did not result in any adjustments or restatements of our audited consolidated financial statements or disclosures for any prior period previously reported by the company. However, there is a reasonable possibility that a material misstatement of the
consolidated financial statements would not have been prevented or detected on a timely basis due to the failure in designing and implementing appropriate controls over the segregation of duties, and therefore, it has been evaluated as a material
weakness.

Notwithstanding this material weakness and managements assessment that internal control over financial reporting was ineffective as of
December 31, 2015, our management, including our chief executive officer (principal executive officer) and chief operating officer (principal financial officer), believes that the consolidated financial statements contained in
this Annual Report on Form 20-F present fairly, in all material respects, our financial position, results of operations and cash flows for the periods presented in conformity with IFRS.

Managements Plan for Remediation

With the oversight of senior management and our audit committee, we continue to evaluate our internal control over financial reporting and are taking several
remedial actions to address the material weakness that has been identified:



| |  |  | We have hired additional accounting and finance staff, who have significant external reporting experience and experience with establishing appropriate financial reporting policies and procedures, to provide more
resources to support, design and implement effective internal controls over financial reporting. Management believes that hiring additional qualified personnel will improve our overall system of internal controls over financial reporting and will
fully remediate this material weakness, which was partially remediated as of December 31, 2015.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | We have engaged an external professional advisor with sufficient technical accounting expertise to assist us in the implementation of internal controls over financial reporting and segregating duties amongst accounting
personnel.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Management has implemented additional measures to strengthen our internal control over financial reporting, including expansion of year-end closing procedures, the dedication of significant internal resources and
external consultant to scrutinize account analyses and reconciliations and managements own internal reviews and efforts to remediate the material weakness in internal control over financial reporting described above and to avoid potential
future material weaknesses.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Attestation Report of the Registered Public Accounting Firm

Our independent registered public accounting firm, Deloitte & Associés, has audited the consolidated financial statements included in this
Annual Report on Form 20-F, and as part of its audit, has issued its audit report on the effectiveness of our internal control over financial reporting. This report is included on page F-3 of this Form 20-F and is incorporated herein by reference.



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Changes in Internal Control Over Financial Reporting

Other than the material weakness and remediation activities described above, there were no changes in our internal control over financial reporting that
occurred during the period covered by this Annual Report that have materially affected, or that are reasonably likely to materially affect, our internal control over financial reporting.



|Item 15T. | Controls and Procedures.
|--------- | ------------------------

Not applicable.



|Item 16. | Reserved.
|-------- | ---------

Not applicable.



|Item 16A. | Audit Committees Financial Expert.
|--------- | ----------------------------------

Our board of directors has determined that Dr. Bjerke is an
audit committee financial expert as defined by SEC rules and has the requisite financial sophistication under the applicable rules and regulations of the Nasdaq Stock Market. Dr. Bjerke is independent as such term is defined in Rule 10A-3 under
the Exchange Act and under the listing standards of the Nasdaq Stock Market.



|Item 16B. | Code of Business Conduct and Ethics.
|--------- | ------------------------------------

We have adopted a Code of Business Conduct and Ethics, or the Code
of Conduct, that is applicable to all of our employees, executive officers and directors. A copy of the Code of Conduct is available on our website at www.dbv-technologies.com.



|Item 16C. | Principal Accountant Fees and Services.
|--------- | ---------------------------------------

Deloitte & Associés, or Deloitte, has served as
our independent registered public accounting firm for 2014 and 2015. Our accountants billed the following fees to us for professional services in each of those fiscal years:



|                   |  |                                |     |  |      |   |     | 
|------------------ |  | ------------------------------ | --- |  | ---- | - | --- | 
|                   |  | Year Ended December 31,        |    
|                   |  | 2014                           |     |  | 2015 |  
|                   |  | (Amount in thousands of Euros) |    
|Audit Fees         |  |                               | 884 |  |      |  | 686 | 
|Audit-Related Fees |  |                                |    |  |      |   |    | 
|Tax Fees           |  |                                |    |  |      |   |    | 
|Other Fees         |  |                                |    |  |      |   |    | 
|                   |  |                                |     |  |      |   |     | 
|Total              |  |                               | 884 |  |      |  | 686 | 
|                   |  |                                |     |  |      |   |     | 

Audit Fees are the aggregate fees billed for the audit of our annual financial statements. This category
also includes services that Deloitte provides, such as consents and assistance with and review of documents filed with the SEC. In 2015, Audit Fees also include fees billed for assurance and related services regarding our July 2015
underwritten public offering.

Audit-Related Fees are the aggregate fees billed for assurance and related services that are reasonably
related to the performance of the audit and are not reported under Audit Fees.

Tax Fees are the aggregate fees billed for professional
services rendered by Deloitte for tax compliance, tax advice and tax planning related services.

Other Fees are any additional amounts
billed for products and services provided by Deloitte.

There were no Audit Related Fees or Tax Fees or billed or
paid during 2014 or 2015.

Audit and Non-Audit Services Pre-Approval Policy

The audit committee has responsibility for appointing, setting compensation of and overseeing the work of the independent registered public accounting firm. In
recognition of this responsibility, the audit committee has adopted a policy governing the pre-approval of



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all audit and permitted non-audit services performed by our independent registered public accounting firm to ensure that the provision of such services does not impair the independent registered
public accounting firms independence from us and our management. Unless a type of service to be provided by our independent registered public accounting firm has received general pre-approval from the audit committee, it requires specific
pre-approval by the audit committee. The payment for any proposed services in excess of pre-approved cost levels requires specific pre-approval by the audit committee.

Pursuant to its pre-approval policy, the audit committee may delegate its authority to pre-approve services to the chairperson of the audit committee. The
decisions of the chairperson to grant pre-approvals must be presented to the full audit committee at its next scheduled meeting. The audit committee may not delegate its responsibilities to pre-approve services to the management.

The audit committee has considered the non-audit services provided by Deloitte as described above and believes that they are compatible with maintaining
Deloittes independence as our independent registered public accounting firm.



|Item 16D. | Exemptions from the Listing Standards for Audit Committees.
|--------- | -----------------------------------------------------------

Not applicable.



|Item 16E. | Purchases of Equity Securities by the Issuer and Affiliated Purchasers.
|--------- | -----------------------------------------------------------------------

Not applicable.



|Item 16F. | Change in Registrants Certifying Accountant.
|--------- | ---------------------------------------------

Not applicable.



|Item 16G. | Corporate Governance.
|--------- | ---------------------

As a French société anonyme, we are subject to various
corporate governance requirements under French law. In addition, as a foreign private issuer listed on the Nasdaq Global Select Market, we are subject to the Nasdaq corporate governance listing standards. However, the Nasdaq Global Select
Markets listing standards provide that foreign private issuers are permitted to follow home country corporate governance practices in lieu of Nasdaq rules, with certain exceptions. We currently rely on certain exemptions for foreign private
issuers and follow French corporate governance practices in lieu of the Nasdaq corporate governance rules, including Nasdaq corporate governance rules that state (1) a majority of the board of directors consists of independent directors;
(2) establishing a nominating and corporate governance committee; (3) the compensation committee be composed entirely of independent directors; and (4) separate executive sessions of independent directors and non-management directors
held by the company at least twice per year.

The following are the significant ways in which our corporate governance practices differ from those
required for U.S. companies listed on Nasdaq:

As a foreign private issuer, we are required to comply with Rule 10A-3 of the Exchange Act relating to
audit committee composition and responsibilities. Rule 10A-3 provides that the audit committee must have direct responsibility for the nomination, compensation and choice of our auditors, as well as control over the performance of their duties,
management of complaints made, and selection of consultants. However, if the laws of a foreign private issuers home country require that any such matter be approved by the board of directors or the shareholders, the audit committees
responsibilities or powers with respect to such matter may instead be advisory. Under French law, the audit committee may only have an advisory role and appointment of our statutory auditors, in particular, must be decided by the shareholders at our
general shareholders meeting.

In addition, Nasdaq rules require that a listed company specify that the quorum for any meeting of the holders of
common stock be at least 331/3% of the outstanding shares of the companys common voting stock. Consistent with French law, our
by-laws provide that a quorum requires the presence of shareholders having at least (1) 20% of the shares entitled to vote in the case of an ordinary shareholders general meeting or at an extraordinary shareholders general meeting
where shareholders are voting on a capital increase by capitalization of reserves, profits or share premium, or (2) 25% of the shares entitled to vote in the case of any other extraordinary shareholders general meeting. If a quorum is not
present, the meeting is adjourned. There is no quorum requirement when an ordinary general meeting is reconvened, but the reconvened meeting may consider only questions which were on the agenda of the adjourned meeting. When an extraordinary general
meeting is reconvened, the quorum required is 20% of the shares entitled to vote, except where the reconvened meeting is considering capital increases through capitalization of reserves, profits or share premium. For these matters, no quorum is
required at the reconvened meeting. If a quorum is not present at a reconvened meeting requiring a quorum, then the meeting may be adjourned for a maximum of two months.



140



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##### Table of Contents

|Item 16H. | Mine Safety Disclosure.
|--------- | -----------------------

Not applicable.

PART III



|Item 17. | Financial Statements.
|-------- | ---------------------

See pages F-1 through F-52 of this Annual Report on Form 20-F.



|Item 18. | Financial Statements.
|-------- | ---------------------

Not applicable.



|Item 19. | Exhibits.
|-------- | ---------

The Exhibits listed in the Exhibit Index at the end of this Annual Report on Form 20-F are
filed as Exhibits to this Annual Report on Form 20-F.



141



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##### Table of Contents

Index to Financial Statements



|                                                                                                                |  |      |     | 
|--------------------------------------------------------------------------------------------------------------- |  | ---- | --- | 
|                                                                                                                |  | Page |    
|                                                                                                                | 
|Annual Financial Statements for the Years Ended December 31, 2013, 2014 and 2015:                               |  |      |     | 
|                                                                                                                | 
|Report of Deloitte & Associés, Independent Registered Public Accounting Firm                                    |  |      | F-2 | 
|                                                                                                                | 
|Report of Deloitte & Associés, Independent Registered Public Accounting Firm (ICFR)                             |  |      | F-3 | 
|                                                                                                                | 
|Consolidated Statements of Financial Position as of December 31, 2013, 2014 and 2015                            |  |      | F-4 | 
|                                                                                                                | 
|Consolidated Statements of (Loss) for the Years Ended December 31, 2013, 2014 and 2015                          |  |      | F-5 | 
|                                                                                                                | 
|Consolidated Statements of Comprehensive (Loss) for the Years Ended December 31, 2013, 2014 and 2015            |  |      | F-6 | 
|                                                                                                                | 
|Consolidated Statements of Cash Flows for the Years Ended December 31, 2013, 2014 and 2015                      |  |      | F-7 | 
|                                                                                                                | 
|Consolidated Statements of Changes in Shareholders Equity for the Years Ended December 31, 2013, 2014 and 2015 |  |      | F-8 | 
|                                                                                                                | 
|Notes to the Consolidated Financial Statements                                                                  |  |      | F-9 | 



F-1



---

##### Table of Contents

Report of Independent Registered Public Accounting Firm

To the Board of Directors and Shareholders of DBV Technologies SA

Paris, France

We have audited the accompanying consolidated
statements of financial position of DBV Technologies SA and subsidiary (the Company) as of December 31, 2013, 2014 and 2015, and the related consolidated statements of income (loss), consolidated comprehensive income (loss), changes
in consolidated shareholders equity, and consolidated cash flows for each of the three years in the period ended December 31, 2015. These financial statements are the responsibility of the Companys management. Our responsibility is
to express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with the standards of the Public Company
Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test
basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement
presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the consolidated financial statements present
fairly, in all material respects, the financial position of the Company as of December 31, 2013, 2014 and 2015, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 2015, in
conformity with International Financial Reporting Standards (IFRS) as issued by the International Accounting Standards Board.

We have also
audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the Companys internal control over financial reporting as of December 31, 2015, based on the criteria established in Internal
Control  Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated April 28, 2016 expressed an adverse opinion on the Companys internal control over
financial reporting.

/s/ Deloitte & Associés

Represented by Julien Razungles

Neuilly-sur-Seine, France

April 28, 2016



F-2



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##### Table of Contents

Report of Independent Registered Public Accounting Firm

Internal Control Over Financial Reporting

To the Board of Directors and Shareholders of DBV Technologies SA

Paris, France

We have audited DBV Technologies SA and its
subsidiarys (the Companys) internal control over financial reporting as of December 31, 2015, based on criteria established in Internal Control  Integrated Framework (2013) issued by the Committee of
Sponsoring Organizations of the Treadway Commission. The Companys management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial
reporting, included in the accompanying Managements Annual Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Companys internal control over financial reporting based on our audit. We
do not express an opinion or any other form of assurance on managements statements included in the Managements Plan for Remediation section. We do not express an opinion or any other form of assurance on managements statements
included in the Managements Plan for Remediation section.

We conducted our audit in accordance with the standards of the Public Company Accounting
Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included
obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on that risk, and performing such
other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

A companys
internal control over financial reporting is a process designed by, or under the supervision of, the companys principal executive and principal financial officers, or persons performing similar functions, and effected by the companys
board of directors, management, and other personnel to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting
principles. A companys internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and
dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with International Financial Reporting Standards
(IFRS) as issued by the International Accounting Standards Board, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide
reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the companys assets that could have a material effect on the financial statements.

Because of the inherent limitations of internal control over financial reporting, including the possibility of collusion or improper management override of
controls, material misstatements due to error or fraud may not be prevented or detected on a timely basis. Also, projections of any evaluation of the effectiveness of the internal control over financial reporting to future periods are subject to the
risk that the controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

A material weakness is a deficiency, or a combination of deficiencies, in internal control over financial reporting, such that there is a reasonable
possibility that a material misstatement of the companys annual or interim financial statements will not be prevented or detected on a timely basis. The following material weakness has been identified and included in managements
assessment: the Company did not maintain adequate segregation of duties given the size of its finance and accounting team to allow for appropriate monitoring of financial reporting matters and internal control over financial reporting. The Company
has limited accounting and financial reporting personnel and other resources with which to address its internal controls and procedures. This material weakness was considered in determining the nature, timing, and extent of audit tests applied in
our audit of the consolidated financial statements as of and for the year ended December 31, 2015, of the Company and this report does not affect our audit report on such financial statements.

In our opinion, because of the effect of the material weakness identified above on the achievement of the objectives of the control criteria, the Company has
not maintained effective internal control over financial reporting as of December 31, 2015, based on the criteria established in Internal Control  Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the
Treadway Commission.



We have also audited, in accordance with the standards of
the Public Company Accounting Oversight Board (United States), the consolidated financial statements as of and for the year ended December 31, 2015, of the Company and our report dated April 28, 2016 expressed an unqualified opinion on
those financial statements.

/s/ Deloitte & Associés

Represented by Julien Razungles

Neuilly-sur-Seine, France

April 28, 2016



F-3



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##### Table of Contents

CONSOLIDATED STATEMENTS OF FINANCIAL POSITION



|                                                     |  |       |          |                          |         |      |    |  |         |    |  |  |         |  
|---------------------------------------------------- |  | ----- | -------- | ------------------------ | ------- | ---- | -- |  | ------- | -- |  |  | ------- | -
|                                                     |  | Notes |          | Year Ended December 31,  |        
|                                                     |  |       | 2013 (1) |                          |         | 2014 |    |  | 2015    |   
|                                                     |  |       |          | K                       |         |      | K |  |         | K | 
|ASSETS                                               |  |       |          |                          |         |      |    |  |         |    |  |  |         |  
|Non-current assets                                   |  |       |          |                          |         |      |    |  |         |    |  |  |         |  
|Intangible assets                                    |  | 4     |          |                          | 63      |      |    |  | 29      |    |  |  | 94      |  
|Property, plant, and equipment                       |  | 5     |          |                          | 1,734   |      |    |  | 2,225   |    |  |  | 5,581   |  
|Other non-current financial assets                   |  | 6     |          |                          | 624     |      |    |  | 1,596   |    |  |  | 2,711   |  
|Total non-current assets                             |  |       |          |                          | 2,421   |      |    |  | 3,850   |    |  |  | 8,387   |  
|                                                     |  |       |          |                         
|Current assets                                       |  |       |          |                          |         |      |    |  |         |    |  |  |         |  
|Inventories and work in progress                     |  | 7     |          |                          | 7       |      |    |  | 124     |    |  |  |        |  
|Customer accounts receivable and related receivables |  | 8     |          |                          | 183     |      |    |  | 136     |    |  |  |        |  
|Other current assets                                 |  | 8     |          |                          | 4,223   |      |    |  | 6,723   |    |  |  | 11,512  |  
|Cash and cash equivalents                            |  | 9     |          |                          | 39,403  |      |    |  | 114,583 |    |  |  | 323,381 |  
|Total current assets                                 |  |       |          |                          | 43,815  |      |    |  | 121,566 |    |  |  | 334,893 |  
|TOTAL ASSETS                                         |  |       |          |                          | 46,236  |      |    |  | 125,416 |    |  |  | 343,280 |  
|                                                     |  |      
|                                                     |  | Notes |          | Year Ended December 31st |        
|                                                     |  |       | 2013 (1) |                          |         | 2014 |    |  | 2015    |   
|                                                     |  |       |          | K                       |         |      | K |  |         | K | 
|LIABILITIES                                          |  |       |          |                          |         |      |    |  |         |    |  |  |         |  
|Shareholders equity                                 |  |       |          |                          |         |      |    |  |         |    |  |  |         |  
|Share capital                                        |  | 10    |          |                          | 1,509   |      |    |  | 1,916   |    |  |  | 2,421   |  
|Premiums related to the share capital                |  |       |          |                          | 69,641  |      |    |  | 163,877 |    |  |  | 403,910 |  
|Reserves                                             |  |       |          |                          | (11,449 | )    |    |  | (26,336 | )  |  |  | (39,580 | )
|Net (loss)                                           |  |       |          |                          | (19,306 | )    |    |  | (24,012 | )  |  |  | (44,674 | )
|Total shareholders equity                           |  |       |          |                          | 40,395  |      |    |  | 115,445 |    |  |  | 322,076 |  
|                                                     |  |       |          |                         
|Non-current liabilities                              |  |       |          |                          |         |      |    |  |         |    |  |  |         |  
|Long-term financial debt                             |  | 11    |          |                          | 1,317   |      |    |  | 3,888   |    |  |  | 4,693   |  
|Non-current provisions                               |  | 12    |          |                          | 291     |      |    |  | 531     |    |  |  | 490     |  
|Total non-current liabilities                        |  |       |          |                          | 1,607   |      |    |  | 4,419   |    |  |  | 5,183   |  
|                                                     |  |       |          |                         
|Current liabilities                                  |  |       |          |                          |         |      |    |  |         |    |  |  |         |  
|Short-term financial debt                            |  | 11    |          |                          | 126     |      |    |  | 213     |    |  |  | 149     |  
|Bank overdrafts                                      |  |       |          |                          |        |      |    |  | 28      |    |  |  |        |  
|Supplier accounts payable and related payables       |  | 13    |          |                          | 1,497   |      |    |  | 1,875   |    |  |  | 10,034  |  
|Other current liabilities                            |  | 13    |          |                          | 2,611   |      |    |  | 3,436   |    |  |  | 5,838   |  
|Total current liabilities                            |  |       |          |                          | 4,234   |      |    |  | 5,552   |    |  |  | 16,021  |  
|TOTAL LIABILITIES AND SHAREHOLDERS EQUITY           |  |       |          |                          | 46,236  |      |    |  | 125,416 |    |  |  | 343,280 |  



|(1) | The consolidated statement of financial position as of December 31, 2013 corresponds to DBV Technologies SA, as the Company had no consolidated subsidiary as of this date
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------

The accompanying notes form an integral part of these consolidated financial statements.



F-4



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##### Table of Contents

CONSOLIDATED STATEMENTS OF (LOSS)



|                                           |  |       |          |                          |         |      |    |  |         |    |  |  |         |  
|------------------------------------------ |  | ----- | -------- | ------------------------ | ------- | ---- | -- |  | ------- | -- |  |  | ------- | -
|                                           |  | Notes |          | Year Ended December 31st |        
|                                           |  |       | 2013 (1) |                          |         | 2014 |    |  | 2015    |   
|                                           |  |       |          | K                       |         |      | K |  |         | K | 
|Operating income                           |  |       |          |                          |         |      |    |  |         |    |  |  |         |  
|Revenues                                   |  | 15    |          |                          | 182     |      |    |  | 211     |    |  |  | 202     |  
|Other income                               |  | 15    |          |                          | 3,645   |      |    |  | 4,551   |    |  |  | 5,964   |  
|Total income                               |  |       |          |                          | 3,826   |      |    |  | 4,762   |    |  |  | 6,166   |  
|                                           |  |       |          |                         
|Operating expenses                         |  |       |          |                          |         |      |    |  |         |    |  |  |         |  
|Cost of goods sold                         |  |       |          |                          | (102    | )    |    |  | (136    | )  |  |  | (128    | )
|Research and development                   |  | 16/17 |          |                          | (17,366 | )    |    |  | (21,143 | )  |  |  | (34,234 | )
|Selling and marketing                      |  | 16/17 |          |                          |         |      |    |  | (13     | )  |  |  | (491    | )
|General and administration                 |  | 16/17 |          |                          | (6,310  | )    |    |  | (8,105  | )  |  |  | (16,859 | )
|Total Expenses                             |  |       |          |                          | (23,779 | )    |    |  | (29,397 | )  |  |  | (51,712 | )
|Operating (loss)                           |  |       |          |                          | (19,952 | )    |    |  | (24,636 | )  |  |  | (45,546 | )
|Financial revenues                         |  | 18    |          |                          | 670     |      |    |  | 727     |    |  |  | 1,018   |  
|Financial expenses                         |  | 18    |          |                          | (24     | )    |    |  | (103    | )  |  |  | (146    | )
|Financial Profit                           |  |       |          |                          | 646     |      |    |  | 624     |    |  |  | 871     |  
|Income tax                                 |  | 19    |          |                          |        |      |    |  |        |    |  |  |        |  
|Net (loss)                                 |  |       |          |                          | (19,306 | )    |    |  | (24,012 | )  |  |  | (44,674 | )
|Basic / Diluted (loss) per share (/share) |  | 22    |          |                          | (1.42   | )    |    |  | (1.49   | )  |  |  | (2.08   | )



|(1) | The consolidated statements of (loss) as of December 31, 2013 corresponds to DBV Technologies SAs, as the Company had no consolidated subsidiary as of this date
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------

The accompanying notes form an integral part of these consolidated financial statements.



F-5



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##### Table of Contents

CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS)



|                                                                              |  |                        |         |   |      |  |         |      |  |  |         |  
|----------------------------------------------------------------------------- |  | ---------------------- | ------- | - | ---- |  | ------- | ---- |  |  | ------- | -
|                                                                              |  | Year Ended December 31 |        
|                                                                              |  | 2013 (1)               |         |   | 2014 |  |         | 2015 | 
|                                                                              |  | K                     |         |   | K   |  |         | K   | 
|Net (loss)                                                                    |  |                        | (19,306 | ) |      |  | (24,012 | )    |  |  | (44,674 | )
|Actuarial gains and losses on employee benefits, net of corporate tax         |  |                        | 53      |   |      |  | (153    | )    |  |  | 166     |  
|Profit (loss) directly recognised in shareholders equity                     |  |                        | 53      |   |      |  | (153    | )    |  |  | 166     |  
|Other items in the total (loss) to be recycled subsequently to the net (loss) |  |                        |        |   |      |  | (26     | )    |  |  | (90     | )
|Total Comprehensive (loss)                                                    |  |                        | (19,253 | ) |      |  | (24,191 | )    |  |  | (44,598 | )



|(1) | The consolidated statement of comprehensive (loss) as of December 31, 2013 corresponds to DBV Technologies SA, as the Company had no consolidated subsidiary as of this date
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------

In accordance with IAS 1 Presentation of Financial Statements (2007) (IAS 1), the Group, as defined in Note 2, presents a combined statement of
other elements of comprehensive (loss).

The Group does not hold any financial assets available for sale and non-current financial assets are measured at
historical cost which approximates fair value; therefore, no change in fair value is reflected in the consolidated statement of comprehensive (loss).

The accompanying notes form an integral part of these consolidated financial statements.



F-6



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##### Table of Contents

CONSOLIDATED STATEMENTS OF CASH FLOWS



|                                                                             |  |       |  |          |         |   |      |  |         |      |  |  |         |  
|---------------------------------------------------------------------------- |  | ----- |  | -------- | ------- | - | ---- |  | ------- | ---- |  |  | ------- | -
|                                                                             |  | Notes |  | 2013 (1) |         |   | 2014 |  |         | 2015 | 
|                                                                             |  |       |  | K       |         |   | K   |  |         | K   | 
|Cash flows from operating activities                                         |  |       |  |          |         |   |      |  |         |     
|Net (loss) for the period                                                    |  |       |  |          | (19,306 | ) |      |  | (24,012 | )    |  |  | (44,674 | )
|Reconciliation of net ( loss) and of the cash used for operating activities: |  |       |  |          |         |   |      |  |         |     
|Amortization and depreciation                                                |  |       |  |          | 341     |   |      |  | 515     |      |  |  | 1,073   |  
|Retirement pension obligations                                               |  |       |  |          | 90      |   |      |  | 86      |      |  |  | 125     |  
|Expenses related to share-based payments                                     |  |       |  |          | 5,048   |   |      |  | 4,639   |      |  |  | 10,419  |  
|Other elements                                                               |  |       |  |          |        |   |      |  |        |      |  |  | 296     |  
|Operating cash flows before change in working capital                        |  |       |  |          | (13,827 | ) |      |  | (18,770 | )    |  |  | (32,761 | )
|Inventories and work in progress                                             |  |       |  |          | 23      |   |      |  | (117    | )    |  |  | 124     |  
|Customer accounts receivable                                                 |  |       |  |          | (58     | ) |      |  | (125    | )    |  |  | 136     |  
|Other receivables                                                            |  |       |  |          | (1,105  | ) |      |  | (1,702  | )    |  |  | (4,870  | )
|Supplier accounts payable                                                    |  |       |  |          | 520     |   |      |  | (424    | )    |  |  | 8,236   |  
|Other current liabilities                                                    |  |       |  |          | 1,195   |   |      |  | 578     |      |  |  | 2,372   |  
|Change in the working capital requirement                                    |  |       |  |          | 574     |   |      |  | (1,789  | )    |  |  | 5,998   |  
|                                                                             |  |       |  |         
|Net cash flow from operating activities                                      |  |       |  |          | (13,253 | ) |      |  | (20,560 | )    |  |  | (26,763 | )
|                                                                             |  |       |  |         
|Cash flows from investment activities                                        |  |       |  |          |         |   |      |  |         |      |  |  |         |  
|Acquisitions of property, plant, and equipment                               |  | 5     |  |          | (1,090  | ) |      |  | (941    | )    |  |  | (4,360  | )
|Acquisitions of intangible assets                                            |  | 4     |  |          | (81     | ) |      |  | (31     | )    |  |  | (148    | )
|Acquisitions of non-current financial assets                                 |  |       |  |          | (237    | ) |      |  | (124    | )    |  |  | (839    | )
|                                                                             |  |       |  |         
|Net cash flows from investment activities                                    |  |       |  |          | (1,408  | ) |      |  | (1,096  | )    |  |  | (5,347  | )
|                                                                             |  |       | 
|Cash flows from financing activities:                                        |  |       |  |          |         |   |      |  |         |     
|Increase in conditional advances                                             |  | 11    |  |          | 1,069   |   |      |  | 3,128   |      |  |  | 865     |  
|(Decrease) in conditional advances                                           |  | 11    |  |          | (260    | ) |      |  | (128    | )    |  |  | (192    | )
|Treasury shares                                                              |  |       |  |          | 231     |   |      |  | (889    | )    |  |  | (175    | )
|Capital increases, net of transaction costs                                  |  | 10    |  |          | 15,196  |   |      |  | 94,643  |      |  |  | 240,538 |  
|Other cash flows related to financing activities                             |  |       |  |          |         |   |      |  | 54      |      |  |  | (21     | )
|Net cash flows from financing activities:                                    |  |       |  |          | 16,236  |   |      |  | 96,808  |      |  |  | 241,014 |  
|                                                                             |  |       |  |         
|(Decrease)/Increase in cash                                                  |  |       |  |          | 1,574   |   |      |  | 75,152  |      |  |  | 208,904 |  
|Net Cash and cash equivalents at the beginning of the period                 |  |       |  |          | 37,829  |   |      |  | 39,403  |      |  |  | 114,555 |  
|Impact of exchange rate fluctuations                                         |  |       |  |          |        |   |      |  |        |      |  |  | (78     | )
|Net Cash and cash equivalents at the close of the period                     |  | 9     |  |          | 39,403  |   |      |  | 114,555 |      |  |  | 323,381 |  



|(1) | The consolidated statement of cash flows as of December 31, 2013 corresponds to DBV Technologies SAs, as the Company had no consolidated subsidiary as of this date
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------

The accompanying notes form an integral part of these consolidated financial statements.



F-7



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##### Table of Contents

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS EQUITY

(Amounts in thousands of Euros)



|                                                                |  |                              |            |  |        |  |       |                                     |  |  |          |  |  |              |         |   |                          |  |         |   |  |  |         |  
|--------------------------------------------------------------- |  | ---------------------------- | ---------- |  | ------ |  | ----- | ----------------------------------- |  |  | -------- |  |  | ------------ | ------- | - | ------------------------ |  | ------- | - |  |  | ------- | -
|                                                                |  | Share CapitalOrdinary Shares |            |  |        |  |       |                                     |  |  |          |  |  |              |        
|                                                                |  | Numberof shares              |            |  | Amount |  |       | PremiumsRelated to theShare Capital |  |  | Reserves |  |  | Profit(loss) |         |   | TotalShareholdersEquity | 
|At January 1, 2013 (1)                                          |  |                              | 13,408,147 |  |        |  | 1,341 |                                     |  |  | 54,613   |  |  |              | (3,868  | ) |                          |  | (12,912 | ) |  |  | 39,173  |  
|Net (loss)                                                      |  |                              |            |  |        |  |       |                                     |  |  |          |  |  |              |         |   |                          |  | (19,306 | ) |  |  | (19,306 | )
|Profit directly recognized in shareholders equity              |  |                              |            |  |        |  |       |                                     |  |  |          |  |  |              | 53      |   |                          |  |         |   |  |  | 53      |  
|Total profit (loss) directly recognized in shareholders equity |  |                              |            |  |        |  |       |                                     |  |  |          |  |  |              | 53      |   |                          |  | (19,306 | ) |  |  | (19,253 | )
|Allocation of prior period (loss)                               |  |                              |            |  |        |  |       |                                     |  |  |          |  |  |              | (12,912 | ) |                          |  | 12,912  |   |  |  |         |  
|Increase in capital                                             |  |                              | 1,680      |  |        |  | 168   |                                     |  |  | 14,961   |  |  |              |         |   |                          |  |         |   |  |  | 15,129  |  
|                                                                |  |                              |            |  |        | 
|Treasury shares                                                 |  |                              |            |  |        |  |       |                                     |  |  |          |  |  |              | 231     |   |                          |  |         |   |  |  | 231     |  
|                                                                |  |                              |            |  |        | 
|Issue of share warrants                                         |  |                              |            |  |        |  |       |                                     |  |  | 67       |  |  |              |         |   |                          |  |         |   |  |  | 67      |  
|Foreign exchange translation                                    |  |                              |            |  |        |  |       |                                     |  |  |          |  |  |              | (1      | ) |                          |  |         |   |  |  | (1      | )
|Share-based payments                                            |  |                              |            |  |        |  |       |                                     |  |  |          |  |  |              | 5,048   |   |                          |  |         |   |  |  | 5,048   |  
|                                                                |  |                              |            |  |        | 
|At December 31, 2013                                            |  |                              | 15,088,298 |  |        |  | 1,509 |                                     |  |  | 69,641   |  |  |              | (11,449 | ) |                          |  | (19,306 | ) |  |  | 40,395  |  
|Net (loss)                                                      |  |                              |            |  |        |  |       |                                     |  |  |          |  |  |              |         |   |                          |  | (24,012 | ) |  |  | (24,012 | )
|(Loss) directly recognized in shareholders equity              |  |                              |            |  |        |  |       |                                     |  |  |          |  |  |              | (179    | ) |                          |  |         |   |  |  | (179    | )
|Total (loss) directly recognized in shareholders equity        |  |                              |            |  |        |  |       |                                     |  |  |          |  |  |              | (179    | ) |                          |  | (24,012 | ) |  |  | (24,191 | )
|Allocation of prior period (loss)                               |  |                              |            |  |        |  |       |                                     |  |  |          |  |  |              | (19,306 | ) |                          |  | 19,306  |   |  |  |        |  
|Increase in capital                                             |  |                              | 4,072,363  |  |        |  | 407   |                                     |  |  | 94,204   |  |  |              |         |   |                          |  |         |   |  |  | 94,611  |  
|Treasury shares                                                 |  |                              |            |  |        |  |      |                                     |  |  |          |  |  |              | (41     | ) |                          |  |         |   |  |  | (41     | )
|Issue of share warrants                                         |  |                              |            |  |        |  |       |                                     |  |  | 32       |  |  |              |         |   |                          |  |         |   |  |  | 32      |  
|Share-based payments                                            |  |                              |            |  |        |  |       |                                     |  |  |          |  |  |              | 4,639   |   |                          |  |         |   |  |  | 4,639   |  
|At December 31, 2014                                            |  |                              | 19,160,661 |  |        |  | 1,916 |                                     |  |  | 163,877  |  |  |              | (26,336 | ) |                          |  | (24,012 | ) |  |  | 115,445 |  
|Net (loss)                                                      |  |                              |            |  |        |  |       |                                     |  |  |          |  |  |              |         |   |                          |  | (44,674 | ) |  |  | (44,674 | )
|Foreign exchange translation                                    |  |                              |            |  |        |  |       |                                     |  |  |          |  |  |              | (90     | ) |                          |  |         |   |  |  | (90     | )
|Profit directly recognized in shareholders equity              |  |                              |            |  |        |  |       |                                     |  |  |          |  |  |              | 166     |   |                          |  |         |   |  |  | 166     |  
|Total profit (loss) directly recognized in shareholders equity |  |                              |            |  |        |  |       |                                     |  |  |          |  |  |              | 76      |   |                          |  | (44,674 | ) |  |  | (44,598 | )
|Allocation of prior period (loss)                               |  |                              |            |  |        |  |       |                                     |  |  |          |  |  |              | (24,012 | ) |                          |  | 24,012  |   |  |  |         |  
|Increase in capital                                             |  |                              | 5,044,468  |  |        |  | 504   |                                     |  |  | 239,891  |  |  |              |         |   |                          |  |         |   |  |  | 240,396 |  
|                                                                |  |                              |            |  |        | 
|Treasury shares                                                 |  |                              |            |  |        |  |      |                                     |  |  |          |  |  |              | 273     |   |                          |  |         |   |  |  | 273     |  
|                                                                |  |                              |            |  |        | 
|Issue of share warrants                                         |  |                              |            |  |        |  |       |                                     |  |  | 142      |  |  |              |         |   |                          |  |         |   |  |  | 142     |  
|Share-based payments                                            |  |                              |            |  |        |  |       |                                     |  |  |          |  |  |              | 10,419  |   |                          |  |         |   |  |  | 10,419  |  
|At December 31, 2015                                            |  |                              | 24,205,129 |  |        |  | 2,421 |                                     |  |  | 403,910  |  |  |              | (39,580 | ) |                          |  | (44,674 | ) |  |  | 322,076 |  



|(1) | The consolidated statement of changes in shareholders equity as of December 31, 2013 corresponds to DBV Technologies SAs, as the Company had no consolidated subsidiary as of this date
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

The accompanying notes form an integral part of these consolidated financial statements.



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NOTES TO THE FINANCIAL STATEMENTS

Note 1: The Company

Incorporated in 2002 under the laws
of France, DBV Technologies S.A. (DBV Technologies, or the Company) is a clinical-stage specialty biopharmaceutical company focused on changing the field of immunotherapy, specifically in young children.

The Company historically marketed a ready-to-use diagnostic product to detect t cows milk protein allergy (CMPA) in children called
Diallertest® Milk, which was launched in France in 2004. This product was distributed in France only, by a commercial partner, under a temporary exception status from French regulatory
authorities which, without such temporary exception, marketing of the product would not be allowed. During the second half of 2015, the Company discontinued its commercial partnership with respect to the product and ceased selling Diallertest Milk.
The Company does not expect to derive any revenues in 2016 from the sale of Diallertest Milk. DBV Technologies is also developing a novel technology platform called Viaskin® . The
Companys therapeutic approach is based on epicutaneous immunotherapy, or EPIT, a proprietary method of delivering biologically active compounds to the immune system through intact skin using Viaskin.

Viaskin® Peanut is the first specific immunotherapy product developed by DBV Technologies. Solid
preclinical data have already been published. Pharmacological development was achieved through a vast network of collaborative efforts in the United States and in Europe. A tolerance study (Phase Ib) conducted in the United States demonstrated the
safety and high level of tolerance of Viaskin® Peanut in patients with peanut allergies, and the FDA granted a Fast Track designation to the product. In France, the French Health Product
Safety Agency (Agence française de sécurité sanitaire des produits de santé, AFSSAPS) authorized an efficacy study sponsored by the Paris Region Public Hospitals (Assistance Publique  Hôpitaux de Paris,
AP/HP). In 2012, an efficacy study (Phase IIb) was launched in the United States and Europe. The topline results for the studies were published during the second 2014 semester. A Phase III clinical study began during the last 2015 quarter.

Viaskin® Milk is the second product developed in specific immunotherapy. A Phase II pilot study
published by Dupont et al. (JACI 2010) demonstrated the safety and effectiveness of Viaskin® Milk in children (JACI 2010). In 2014, a clinical efficacy study using Viaskin® Milk was launched.

Main events in 2015

In February 2015, DBV Technologies published the totality of the results for the VIPES study at the World Allergy Congress which was held in Houston, Texas.
The detailed results of VIPES show the magnitude of Viaskin®s therapeutic effect, which allow the Company to launch its third food allergy program, specifically on allergies to egg
(Viaskin® Egg).

In April 2015, DBV Technologies announced that it had obtained breakthrough
therapy designation from the U.S. Food and Drug Administration (FDA) for Viaskin Peanut in children. 6 to 11 years of age A breakthrough therapy is defined as a product that is intended, alone or in combination with one or more other
drugs, to treat a serious or life- threatening condition, and preliminary clinical evidence indicates that the product may demonstrate substantial improvement over existing therapies on one or more clinically significant endpoints.

In June 2015, DBV Technologies announced the positive opinion of the Pediatric Committee of the European Medicines Agency (EMA) regarding the
Pediatric Investigation Plan (PIP) of Viaskin® Peanut for the treatment of children with a peanut allergy. An accepted PIP is a prerequisite for the filing for marketing
authorization for any new medicinal product in Europe.

In June 2015, subsequent to the end of Phase II, DBV Technologies also detailed the results of the
meeting held with the FDA. The results of this meeting, which was regarding the plan to clinically develop Viaskin® Peanut, are consistent with the positive opinion previously given by
the EMA regarding the Pediatric Investigation Plan (PIP) of Viaskin® Peanut. On the basis of the compulsory consultations, in the fourth trimester of 2015, DBV Technologies plans to
launch a worldwide Phase II clinical study on Viaskin® Peanut for the treatment of peanut allergies in children from 4 to 11 years of age (Peanut EPIT Efficacy and Safety Study PEPITES).
On the basis of these consultations, complementary developmental plans will be discussed with the FDA during the second semester of 2015 for Viaskin® Peanut in both younger and older
patients.

In June 2015, Professor Hugh Sampson joined the Company as Scientific Director. As part of his duties, and in partnership with Professor
Bertrand Dupont, President of the Scientific Advisory Board, Professor Sampson supervises DBVs research team and drives the development of new applications for Viaskin® in the treatment
of food allergies, while giving support to the Companys clinical development teams.



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In June 2015, the Company announced the end of Part A of the
Viaskin® Milk Efficacy and Safety Phase I/II study (MILES). The Data Safety Monitoring Board (DSMB) for the study recommended that the study continue and expressed no safety concerns
after evaluating the Part A safety data of subjects treated with a 150 μg, 300 μg and 500 μg doses of Viaskin® Milk.

In July 2015, the Company filed a registration statement on Form F-1 with the U.S Securities and Exchange Commission (SEC) for a proposed
underwriter public offering of ordinary shares in the form of American Depositary Shares (ADS), as well as the registration of its Reference Document with the French Financial Markets Authority (AMF). On July 20, 2015,
the Company consummated the ADS offering and increased its capital in the amount of 281.5 million US Dollars. The ADS were sold to the public at a price of 34 US dollars per ADS, which resulted in a subscription price of 61.68 Euros per new
ordinary share (of which a share premium of 61.58 Euros). Each ADS gives the right to receive half of an ordinary share.

In July 2015, the FDA accepted
an investigator-sponsored investigational new drug (IND) application for a Phase IIA clinical trial for the potential treatment of milk-induced EoE in children using the Companys
Viaskin® Milk. This IND acceptance enabled Dr. Jonathan Spergel at The Childrens Hospital of Philadelphia to initiate SMILEE (Study Efficacy and Safety of the Viaskin® Milk in milk-induced Eosinophilic Esophagitis), a clinical trial designed to assess the efficacy and safety of Viaskin® Milk in
children from four to 17 years of age suffering from milk-induced EoE. The SMILEE trial was initiated in November 2015.

In October 2015, the Company
presented its topline findings from the first 12 months of the OLFUS-VIPES study, which follows the Phase IIb VIPES clinical study. The Company announced that t it observed that 12 additional months of therapy with Viaskin Peanut 250 μg
increased the number of patients benefiting from treatment to 70% in OLFUS-VIPES from 50% in VIPES.

In November 2015, the Company presented pre-clinical
findings evaluating Viaskin® technology in the context of vaccinations against respiratory syncytial virus (RSV) at the RSV Vaccines for the World 2015 meeting in La Jolla,
California.

In December 2015, the Company announced the launch of a pivot Phase III clinical trial which will evaluate the safety and efficiency of
Viaskin® Peanut 250μg in children aged from four to 11 years of age who are allergic to peanuts. PEPITES (Peanut EPIT® Efficiency
and Safety Study) is an international, double-blind, placebo-controlled Phase III study.

In December 2015, the Company presented experimental results on
the use of Epicutaneous Immunotherapy (EPIT®) in a model of Crohns disease. These will be presented at the Crohns & Colitis Foundation of America Advances in Inflammatory
Bowel Diseases (AIBD).

Note 2: General Information and Statement of Compliance

Preliminary remarks

DBV Technologies Inc. was established
on April 7, 2014 (the US subsidiary). The share capital of this US subsidiary is 100% owned by DBV Technologies SA (DBV Technologies).

The financial information as at December 31, 2013 corresponds to the information previously published and includes only the transactions related to the
parent company DBV Technologies SA, which had no equity interest in a subsidiary over the period in question.

General principles

The accompanying consolidated financial statements and related notes (the Financial Statements) present the operations of DBV Technologies SA and
its US subsidiary (the Group) as of December 31, 2015. The Company is a corporate venture under French law (société anonyme) and its registered office is located at 80/84 rue des Meuniers, 92220 Bagneux at
December 31, 2015. The Company moved its headquarters to 177-181 avenue Pierre Brossolette 92120 Montrouge on January 6, 2016.

Our Financial
Statements as of December 31, 2015 have been prepared under the responsibility of DBV Technologies management. The Financial Statements were approved by the Board of Directors of DBV Technologies on April 6th, 2016.

All amounts are expressed in thousands of euros, unless stated otherwise.

For consolidation purposes, both DBV Technologies SA and its subsidiary DBV Technologies Inc. have prepared individual financial statements for the period
ended December 31, 2014 and December 31, 2015.



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##### Table of Contents

Statement of Compliance

Our Financial Statements have been prepared in accordance with International Financial Reporting Standards (IFRS) as issued by the International
Accounting Standard Board (IASB) and whose application is mandatory for the year ended December 31, 2015. Comparative figures are presented for December 31, 2013 and 2014.

Due to the listing of DBV Technologies S.A. ordinary shares on the Euronext Paris and in accordance with the European Unions regulation
No. 1606/2002 of July 19, 2002, the financial statements of the Group are also prepared in accordance with IFRS, as adopted by the European Union (EU).

As of December 31, 2015, there are no differences in the IFRS published and mandated by the IASB and EU, with the exception of the following specific
accounting principles which the EU has not yet adopted at the end of 2015:



| |  |  | Amendments to IAS 19 Defined Benefit Plans: Employee Contributions
| | - |  | ------------------------------------------------------------------

This amendment has not had any impact on
the Financial Statements as of December 31, 2015.

As a result, the Financial Statements comply with IFRS as published by the IASB and as adopted by
the EU.

IFRS include International Financial Reporting Standards (IFRS), International Accounting Standards (the IAS), as well as
the interpretations issued by the Standing Interpretations Committee (the SIC), and the International Financial Reporting Interpretations Committee (IFRIC). The main accounting methods used to prepare the Financial Statements
are described below. These methods were used for all years presented.

There are no new standards, amendments to standards, or interpretations applicable
with effect on the period ending December 31, 2015 that have an impact on the Financial Statements or on their presentation.

New and revised
standards and amendments that may be relevant to the Companys operations but are not yet effective:



| |  |  | IFRS 9 Financial Instruments, effective for annual periods beginning on or after January 1, 2018
| | - |  | ------------------------------------------------------------------------------------------------



| |  |  | IFRS 15 Revenue from Contracts with Customers, effective for annual periods beginning on or after January 1, 2018
| | - |  | -----------------------------------------------------------------------------------------------------------------



| |  |  | Amendments to IFRS 11 Accounting for Acquisitions of Interests in Joint Operations, effective for annual periods beginning on or after January 1, 2016
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Amendments to IAS 16 and IAS 38 Clarification of Acceptable Methods of Depreciation and amortization, effective for annual periods beginning on or after January 1, 2016
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Management is in the process of evaluating the impact of these standards and amendments and is therefore, not currently able to estimate reliably the impact
of their adoption on the Companys results on financial position or cash flows.

The accounting policies and measurement principles adopted for the
Financial Statements as of and for the year ended December 31, 2015 are the same as those used as of and for the years ended December 31, 2013 and 2014.

Note 3: Accounting Principles

Methods of
consolidation

The Financial Statements incorporate the standalone financial statements of DBV Technologies S.A and DBV Technologies Inc. which is
controlled by the Company. Control is achieved when the Company:



| |  |  | has power over the subsidiary;
| | - |  | ------------------------------



| |  |  | is exposed, or has rights, to variable returns from its involvement with the subsidiary; and
| | - |  | --------------------------------------------------------------------------------------------



| |  |  | has the ability to use its power to affect its returns.
| | - |  | -------------------------------------------------------

The Company reassesses whether or not it controls a
subsidiary if facts and circumstances indicate that there are changes to one or more of the three elements of control listed above.



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##### Table of Contents

Consolidation of subsidiaries begins when the Company obtains control over the subsidiary and ceases when the
Company loses control over the subsidiary.

Profit or loss and each component of other comprehensive income are attributed to the owners of the Company
and to the non-controlling interests. Total comprehensive income of subsidiaries is attributed to the owners of the Company and to the non-controlling interests even if this results in the non-controlling interests having a deficit balance.

When necessary, adjustments are made to the financial statements of subsidiaries to align their accounting policies with the Groups accounting policies.

All intragroup assets and liabilities, equity, income, expenses and cash flows relating to transactions between members of the Group are neutralized in
consolidation.

Translation of financial statements in foreign currencies

In preparing the financial statements of each individual group entity, transactions in currencies other than the entitys functional currency are
recognized at the rates of exchange prevailing at the dates of the transactions. At the end of each reporting period, monetary items denominated in foreign currencies are retranslated at the rates prevailing at that date. Non-monetary items carried
at fair value that are denominated in foreign currencies are retranslated at the rates prevailing at the date when the fair value was determined.

For the
purpose of presenting these consolidated financial statements, the assets and liabilities of the Groups foreign operations are translated into Currency Units using exchange rates prevailing at the end of each reporting period. Income and
expense items are translated at the average exchange rates at the dates of the transactions. Exchange differences arising, if any, are recognized in other comprehensive income and accumulated in equity.

3.1 Intangible Assets

In application of the
provisions in IAS 38 Intangible Assets(IAS 38), intangible assets acquired are recorded as assets on the Consolidated Statements of Financial Position at their acquisition cost.

Research and Development Expenses

Research expenses are
recorded in the Financial Statements as expenses.

In accordance with IAS 38, development expenses are recorded in the Financial Statements as intangible
assets only if all the following criteria are met:



| | (a) | technical feasibility necessary for the completion of the development project;
| | --- | ------------------------------------------------------------------------------



| | (b) | intention on the part of the Company to complete the project and to utilize it;
| | --- | -------------------------------------------------------------------------------



| | (c) | capacity to utilize the intangible asset;
| | --- | -----------------------------------------



| | (d) | proof of the probability of future economic benefits associated with the asset;
| | --- | -------------------------------------------------------------------------------



| | (e) | availability of the technical, financial, and other resources for completing the project; and
| | --- | ---------------------------------------------------------------------------------------------



| | (f) | reliable evaluation of the development expenses.
| | --- | ------------------------------------------------

Because of the risks and uncertainties related to regulatory
authorizations and to the research and development process, the Company believes that the six criteria stipulated by IAS 38 are only fulfilled once the Market Access Authorization has been obtained from the competent authorities.

The application of this principle has resulted in all development costs being expensed as incurred.

Software

The costs related to the acquisition of
licenses to software are posted to assets on the basis of the costs incurred to acquire and to implement the software in question.

They are amortized
using the straight-line method over a period of one to three years depending on the anticipated period of use.



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##### Table of Contents

3.2 Property, Plant, and Equipment

Property, plant, and equipment are recorded at their acquisition cost or, if applicable, at their production cost.

Property, plant, and equipment are depreciated on the basis of the straight-line method over the estimated use period of the property. The fixtures of
property rented are depreciated over the term of their own lifetime or of the term of the rental agreement, whichever is shorter.

The depreciation
periods used are the following:



|                                            |  |                     |         | 
|------------------------------------------- |  | ------------------- | ------- | 
|PROPERTY, PLANT, AND
EQUIPMENT ITEM         |  | DEPRECIATION PERIOD |        
|Fixtures and improvements in structures     |  |                     | 9 years | 
|Research and development / production tools |  |                     | 5 years | 
|Research equipment and technical facilities |  |                     | 5 years | 
|Computer equipment                          |  |                     | 3 years | 
|Office equipment and furniture              |  |                     | 5 years | 

3.3 Financial Assets

In accordance with IAS 39 (Financial Instruments: Recognition and Measurement) and IAS 32 (Financial Instruments: Presentation), the Company has adopted the
following classification for non-derivative financial assets, based on the type of asset and on management intention at the date of initial recognition. The designation and classification of such financial assets are subsequently reassessed at the
end of each reporting period.

Non-derivative financial assets are recognized on the date when the Company becomes party to the contractual terms of the
asset. On initial recognition, financial assets are measured at fair value, plus direct transaction costs in the case of financial assets not classified as fair value through profit or loss.

Classification, presentation and subsequent measurement of non-derivative financial assets are as follows:

Assets Owned Until Their Maturity

These securities are
exclusively fixed income or determinable income and have fixed maturities, other than loans and accounts receivable, that the company has the intention and the ability to keep until maturity. After their initial posting at their fair value, they are
valued and posted to the accounts at the cost amortized on the basis of the effective interest rate (EIR) method.

The assets owned until
their maturity are monitored for any objective indication of impairment. A financial asset is impaired if its book value is greater than its recoverable amount as estimated during impairment tests. The impairment is recorded to the income statement.

Loans and Receivables

Loans and receivables are
non-derivative financial assets with fixed or determinable payments that are not quoted in an active market. They are presented in current assets with loans with a maturity of less than 12 months are presented within other current assets
and with trade receivables presented within accounts receivable.. Loans with a maturity of more than 12 months are presented as long-term loans and advances within other non-current assets. Those financial assets
are measured at amortized cost using the effective interest method.

The loans and receivables are monitored for any objective indication of impairment. A
financial asset is impaired if its book value is greater than its recoverable amount as estimated during impairment tests. The impairment is recorded in the Consolidated Statements of (Loss).

The loans and receivables also include the deposits and guarantees, which are classified under Non-current financial assets in the Consolidated
Statements of Financial Position.



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##### Table of Contents

Assets at Fair Value Per the Consolidated Statements of (Loss)

These assets are classified on the balance sheet in the line items Other non-current assets, Current financial assets and Cash and cash equivalents.

Financial assets at fair value through profit or loss comprise assets held for trading (financial assets acquired principally for the purpose of reselling
them in the near term, usually within less than 12 months), and financial instruments designated as fair value through profit and loss on initial recognition in accordance with the conditions for application of the fair value option.

Realized and unrealized foreign exchange gains and losses on financial assets in currencies other than the euro are recognized in the income statement in
Financial income or Financial expenses.

Assets Available for Sale

The assets available for sale include, primarily, securities that do not meet the criteria of the definition of the other categories of financial assets. They
are measured at their fair value, and the changes in value are recorded in the Consolidated Statements of Changes in Shareholders Equity.

The fair
value corresponds to the market price for those securities that are listed on the stock exchange or to an estimate of the use value for unlisted securities, determined on the basis of the financial criteria most appropriate for the specific
situation of each security. When there is an objective indication of the impairment of these securities, the accumulated impairment that has been recorded in the Consolidated Statements of Changes in Shareholders Equity is recognized in the
Consolidated Statement (Loss).

3.4 Recoverable Amount of the Intangible Assets and Property, Plant, and Equipment

The property, plant, and equipment and intangible assets that have an established lifetime are subjected to an impairment test when the recoverability of their
book value is called into question by the existence of indications of impairment. An impairment is posted to the accounts up to the amount of the excess of the book value over the recoverable value of the asset. The recoverable value of an asset
corresponds to its fair value minus the costs of sale or its use value, whichever is higher.

3.5 Inventories and Work in Progress

Inventories are recorded at their cost or at their net liquidation value, if the latter is lower. In the latter case, the impairment is posted to income
or loss. The inventories are valued on the basis of the first-in, first-out (FIFO) method.

3.6 Share Capital

Common shares are classified under Shareholders Equity. The costs of share capital transactions that are directly attributable to the issue of new shares
or options are recorded in the Financial Statements in Shareholders Equity as a deduction from the revenue from the issue, net of tax.

3.7
Payments in Shares

Since its incorporation, the Company has established several plans for compensation paid in equity instruments in the form of
employee warrants (bons de souscription de parts de créateur dentrepriseorBSPCEs) granted to employees and/or executives and in the form of share warrants (bons de souscription
dactions or BSAs) granted to non-employee members of the Board of Directors and scientific consultants.

Pursuant to IFRS 2
Share-based payment (IFRS 2), the cost of the transactions paid with equity instruments is posted to the accounts as an expense in exchange for an increase in the Shareholders Equity for the period during which the rights to
be benefited from the equity instruments are acquired.

The Company has applied IFRS 2 to all equity instruments granted since 2002 to its employees,
members of the Board of Directors, other individuals, or to companies.

The options are not subject to any market conditions. The characteristics of the
options are presented in Note 17.

3.9 Recognition and measurement of Financial Liabilities

Financial Liabilities at Amortized Cost

Borrowings and
other financial liabilities are valued initially at their fair value and then at the amortized cost, calculated on the basis of the effective interest rate EIR method.



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##### Table of Contents

The transaction expenses that are directly attributable to the acquisition or to the issue of a financial
liability reduce that financial liability. These expenses are then amortized over the lifetime of the liability, on the basis of the EIR.

The EIR is the
rate that equalizes the anticipated flow of future cash outflows with the current net book value of the financial liability in order to deduct its amortized cost therefrom.

Liabilities at Fair Value per the Consolidated Statements of (Loss)

The liabilities at fair value per the Consolidated Statements of (Loss) are valued at their fair value.

3.10 Subsidies and Conditional Advances

Subsidies

The Company receives from time to time
assistance in the form of subsidies, which are grants that are not repayable by the Company. The subsidies are recognized when there is reasonable assurance that:



| |  |  | the Company will comply with the conditions attached to the subsidies, and
| | - |  | --------------------------------------------------------------------------



| |  |  | the subsidies will be received.
| | - |  | -------------------------------

Subsidies that are upfront non-refundable payments are presented as deferred
revenue and recognized ratably through income over the duration of the research program to which the subsidy relates.

A public subsidy that is to be
received (e.g. from OSEO, the French Agency for Innovation) either as compensation for expenses or for losses already incurred, or for immediate financial support of the Company without associated expenses or losses, is recognized as other income
ratably over the duration of the funded project.

Conditional advances

The Company also receives from time to time assistance in the form of conditional advances, which are advances repayable in whole or in part based upon
acknowledgment by the funder of a technical or commercial success of the related project by the funding entity. The details concerning the conditional advances are provided in Note 11.

The amount resulting from the deemed benefit of the interest-free nature of the award is considered a subsidy for accounting purposes. This deemed benefit is
determined by applying a discount rate equal to the rate of fungible treasury bonds over the time period that corresponds to the time period of the repayment of the advances.

In the event of a change in payment schedule of the stipulated repayments of the conditional advances, the Company makes a new calculation of the net book
value of the debt resulting from the discounting of the expected new future cash flows. The adjustment that results therefrom is recognized in the income statement for the fiscal year during which the modification is recognized.

The conditional advances that can be subject to this type of modification are the with Compagnie Française dAssurance pour le Commerce
Extérieur (COFACE) advances presented in Note 11.1.

3.11 Provisions

Provisions for Risks and Expenses

The provisions for
risks and lawsuits correspond to the commitments resulting from lawsuits and various risks whose due dates and amounts are uncertain.

A provision is
posted to the accounts when the company has a legal or implicit obligation to a third party resulting from a past event, concerning which it is likely or certain that it will cause an outflow of resources to that third party, without consideration
that is anticipated to be at least equivalent to the latter, and that the future outflows of liquid assets can be estimated reliably.

The amount recorded
in the accounts as a provision is the best estimation of the expenses necessary to extinguish the obligation.

Pension Retirement Obligations

The employees of the Company receive the retirement benefits stipulated by law in France:



| |  |  | obtaining a compensation paid by the Company to employees upon their retirement (defined-benefit plan);
| | - |  | -------------------------------------------------------------------------------------------------------



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| |  |  | payment of retirement pensions by the Social Security agencies, which are financed by the contributions made by companies and employees (defined-contribution plans).
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------

For the defined-benefit plans, the costs of the retirement benefits are estimated by using the projected credit unit method. According to this method, the
cost of the retirement pensions is recognized in the Consolidated Statement of (Loss) so that it is distributed uniformly over the term of the services of the employees. The retirement benefit commitments are valued at the current value of the
future payments estimated using, for the discounting, the market rate based on the long-term obligations of the first-category companies with a term that corresponds to that estimated for the payment of the services provided.

The Company relies on external actuaries to conduct an annual review of the valuation of these plans.

The difference between the amount of the provision at the beginning of a fiscal year and at the close of that year is recognized through profit or loss for
the portion representing the costs of services rendered and through other comprehensive income for the portion representing the actual gains and losses.

The Companys payments for the defined-contribution plans are recognized as expenses on the income statement of the period with which they are
associated.

3.12 Revenue

The revenue of the
Company results mainly from the sale of the product Diallertest, a kit for diagnosing the allergy to proteins in cows milk.

The Company
recognizes revenue when the amount can be measured reliably, when it is likely that the future economic advantages will benefit the Company, and when the specific criteria are met for the business activity of the Company. For the product sales, the
sales revenue is recognized upon delivery.

3.13 Other Income

Subsidies

Since it was formed, because of its innovative
character, the Company has received a certain number of sources of assistance or subsidies from the central government or from local public authorities such as OSEO or the Banque Publique dInvestissement, intended to finance its operations or
the recruitment of specific personnel.

When the obtention of the subsidy is reasonably certain, these subsidies are recognized as Other
income during the calendar year over which the corresponding expenses or expenditures were recorded.

Research Tax Credit

The Research Tax Credit (Crédit dImpôt Recherche,CIR) is granted to companies by the French tax authorities in order to encourage
them to conduct technical and scientific research. Companies that prove that they have expenditures that meet the required criteria (research expenditures located in France or, since January 1, 2005, within the European Community or in another
State that is a party to the Agreement on the European Economic Area that has concluded a tax treaty with France that contains an administrative assistance clause) receive a tax credit that can be used for the payment of the corporate tax due for
the fiscal year in which the expenditures were made and the next three fiscal years, or, as applicable, can be reimbursed for the excess portion. The expenditures taken into account for the calculation of the research tax credit involve only
research expenses.

The Company has received the Research Tax Credit since it was formed.

The Company received the reimbursement of the Research Tax Credit for the year 2012 for an amount of 2.5 million during the year 2013. The Company
received the reimbursement of the Research Tax Credit for the year 2013 for an amount of 3.3 million during the year 2014.

The Company
received the reimbursement of the Research Tax Credit for the year 2014 for an amount of 4.3 million during the year 2015. The Company will request the reimbursement of the 2015 Research Tax Credit for an amount of 5.7 million
during the year 2016, under the Community tax rules for small and medium firms in compliance with the regulatory texts applicable.

3.14 Rental
Agreements

The rental agreements involving property, plant, and equipment are classified as finance lease agreements when the Company bears a
substantial portion of all the benefits and risks inherent in the ownership of the property. The assets that are covered under financing



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lease agreements are capitalized as of the beginning date of the rental agreement on the basis of the fair value of the rented asset or the discounted values of the future minimum payments,
whichever is lower. Each rental payment is distributed between the debt and the financial cost in such a manner as to determine a constant interest rate on the principal that remains due. The corresponding rental obligations, net of the financial
expenses, are classified as financial liabilities. The portion of the financial expense that corresponds to the interest is recognized as an expense over the term of the agreement. The property, plant, or equipment acquired within the framework of a
finance lease agreement is amortized over the use period or the term of the lease agreement, whichever is shorter.

The rental agreements for which a
significant portion of the risks and advantages is preserved by the lessor are classified as ordinary rental agreements. The payments made for these ordinary rental agreements, net of any incentive measures, are recognized as expenses on the income
statement in a linear manner over the term of the agreement.

3.15 Taxes

Income Tax

Deferred taxes are recognized for all the
temporary differences arising from the difference between the tax basis and the accounting basis of the assets and liabilities that appear in the financial statements. The primary temporary differences are related to the tax losses that can be
carried forward or backward. The tax rates that have been ratified by a legal text as of the closing date are utilized to determine the deferred taxes.

The deferred tax assets are recorded in the accounts only to the extent that it is likely that the future profits will be sufficient to absorb the losses that
can be carried forward or backward. Considering its stage of development, which does not allow income projections judged to be sufficiently reliable to be made, the Company has not recognized deferred tax assets in relation to tax losses
carryforward in the Consolidated Statements of Financial Position.

3.16 Segment Information

The Company operates in a single operating segment: the conducting of research and development of epicutaneous immunotherapy products in order to market them
in the future. The assets, liabilities, and operating losses recognized are primarily located in France.

3.17 Other Items in the Comprehensive (or
Loss)

The revenue and expense items for the period that are not posted in the Consolidated Statements of (Loss) as stipulated by the applicable
standards are presented, as necessary, under the rubric Other items in the comprehensive (or loss).

3.18 Use of Estimates

The preparation of our Financial Statements requires the management to make estimates, assumptions and judgments that affect the reported amounts of assets,
liabilities, revenue and expenses. Estimates and assumptions are based on historical experience and other factors that management believes to be reasonable under the circumstances. Estimates and assumptions are measured on an ongoing basis. Actual
results may differ from these estimates.

These estimates and judgments mainly involve:



| |  |  | valuation of the fair value of the employee warrants (BSPCEs) granted to employees and/or executives and share warrants (BSAs) granted to non-employee members of the Board of Directors and scientific consultants and to
service providers, performed on the basis of actuarial models; these models require the use by the Company of certain calculation assumptions such as the expected volatility of the security;
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | estimation of the repayments of the conditional advances obtained by Company from public institutions. The anticipated repayments of the conditional advances are analyzed at each reporting period.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

3.19 Presentation of Financial Assets and Financial Liabilities Measured at Fair Value

In accordance with the amendments to IFRS 7, financial instruments are presented in three categories based on a hierarchical method used to determine their
fair value:



| |  |  | level 1: fair value calculated using quoted prices in an active market for identical assets and liabilities;
| | - |  | ------------------------------------------------------------------------------------------------------------



| |  |  | level 2: fair value calculated using valuation techniques based on observable market data such as prices of similar assets and liabilities or parameters quoted in an active market;
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | level 3: fair value calculated using valuation techniques based wholly or partly on unobservable inputs such as prices in an inactive market or a valuation based on multiples for unlisted securities.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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3.20 Events After the Close of the Fiscal Year

The Consolidated Statements of Financial Position and the Consolidated Statements of (Loss) of the Company are adjusted to reflect the subsequent events that
alter the amounts related to the situations that exist as of the closing date. The adjustments are made until the date the financial statements are approved and authorized for issuance by the Board of Directors.

Note 4: Intangible Assets

The intangible assets are
broken down as follows:



|                                                       |  |                                 |     |  |      |  |     |      |  |  |     | 
|------------------------------------------------------ |  | ------------------------------- | --- |  | ---- |  | --- | ---- |  |  | --- | 
|                                                       |  | December 31                     |    
|                                                       |  | 2013                            |     |  | 2014 |  |     | 2015 | 
|                                                       |  | (Amounts in thousands of Euros) |    
|Patents, licenses, trademarks                          |  |                                 | 31  |  |      |  | 46  |      |  |  | 54  | 
|Software                                               |  |                                 | 146 |  |      |  | 162 |      |  |  | 302 | 
|Total historical cost                                  |  |                                 | 177 |  |      |  | 208 |      |  |  | 356 | 
|                                                       |  |                                 |    
|Accumulated amort.of patents, licenses, and trademarks |  |                                 | 30  |  |      |  | 38  |      |  |  | 53  | 
|Accumulated depreciation of software packages          |  |                                 | 84  |  |      |  | 141 |      |  |  | 210 | 
|Accumulated amortization and depreciation              |  |                                 | 114 |  |      |  | 179 |      |  |  | 262 | 
|Net total                                              |  |                                 | 63  |  |      |  | 29  |      |  |  | 94  | 

There has been no recognition of impairment losses in application of IAS 36 Impairment of Assets for the calendar years
presented.

Note 5: Property, Plant, and Equipment



|                                                                      |  |                                 |       |  |          |  |       |          |  |  |            |  |  |  |       | 
|--------------------------------------------------------------------- |  | ------------------------------- | ----- |  | -------- |  | ----- | -------- |  |  | ---------- |  |  |  | ----- | 
|                                                                      |  | 01/01/2013                      |       |  | Increase |  |       | Decrease |  |  | 12/31/2013 | 
|                                                                      |  | (Amounts in thousands of Euros) |      
|Laboratory equipment                                                  |  |                                 | 781   |  |          |  | 590   |          |  |  |           |  |  |  | 1,372 | 
|Building fixtures                                                     |  |                                 | 630   |  |          |  | 292   |          |  |  |           |  |  |  | 922   | 
|Office equipment                                                      |  |                                 | 132   |  |          |  | 83    |          |  |  |           |  |  |  | 215   | 
|Computer equipment                                                    |  |                                 | 200   |  |          |  | 74    |          |  |  |           |  |  |  | 274   | 
|Property, plant and equipment in process                              |  |                                 |      |  |          |  | 51    |          |  |  |           |  |  |  | 51    | 
|                                                                      |  |                                 |       |  |          |  |       |          |  |  |            |  |  |  |       | 
|Total, gross                                                          |  |                                 | 1,744 |  |          |  | 1,090 |          |  |  |           |  |  |  | 2,834 | 
|                                                                      |  |                                 |       |  |          |  |       |          |  |  |            |  |  |  |       | 
|Accumulated depreciation of laboratory equipment                      |  |                                 | 506   |  |          |  | 164   |          |  |  |           |  |  |  | 670   | 
|Accumulated depreciation of the building fixtures                     |  |                                 | 78    |  |          |  | 100   |          |  |  |           |  |  |  | 179   | 
|Accumulated depreciation of office equipment                          |  |                                 | 59    |  |          |  | 33    |          |  |  |           |  |  |  | 92    | 
|Accumulated depreciation of computer equipment                        |  |                                 | 112   |  |          |  | 47    |          |  |  |           |  |  |  | 159   | 
|Accumulated depreciation of Property, plant and equipment in progress |  |                                 |      |  |          |  |      |          |  |  |           |  |  |  |      | 
|                                                                      |  |                                 |       |  |          |  |       |          |  |  |            |  |  |  |       | 
|Total accumulated amortization and depreciation                       |  |                                 | 755   |  |          |  | 344   |          |  |  |           |  |  |  | 1,099 | 
|                                                                      |  |                                 |       |  |          |  |       |          |  |  |            |  |  |  |       | 
|Total, net                                                            |  |                                 | 988   |  |          |  | 746   |          |  |  |           |  |  |  | 1,734 | 
|                                                                      |  |                                 |       |  |          |  |       |          |  |  |            |  |  |  |       | 



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|                                                                      |  |                                 |       |  |          |  |       |          |  |  |            |   |  |  |       | 
|--------------------------------------------------------------------- |  | ------------------------------- | ----- |  | -------- |  | ----- | -------- |  |  | ---------- | - |  |  | ----- | 
|                                                                      |  | 01/01/2014                      |       |  | Increase |  |       | Decrease |  |  | 12/31/2014 |  
|                                                                      |  | (Amounts in thousands of Euros) |      
|Laboratory equipment                                                  |  |                                 | 1,372 |  |          |  | 886   |          |  |  |           |   |  |  | 2,257 | 
|Building fixtures                                                     |  |                                 | 922   |  |          |  | 8     |          |  |  |           |   |  |  | 930   | 
|Office equipment                                                      |  |                                 | 215   |  |          |  |      |          |  |  |           |   |  |  | 215   | 
|Computer equipment                                                    |  |                                 | 274   |  |          |  | 48    |          |  |  |           |   |  |  | 322   | 
|Property, plant and equipment in process                              |  |                                 | 51    |  |          |  |      |          |  |  |           |   |  |  | 51    | 
|                                                                      |  |                                 |       |  |          |  |       |          |  |  |            |   |  |  |       | 
|Total, gross                                                          |  |                                 | 2,834 |  |          |  | 941   |          |  |  |           |   |  |  | 3,775 | 
|                                                                      |  |                                 |       |  |          |  |       |          |  |  |            |   |  |  |       | 
|Accumulated depreciation of laboratory equipment                      |  |                                 | 670   |  |          |  | 246   |          |  |  |           |   |  |  | 916   | 
|Accumulated depreciation of the building fixtures                     |  |                                 | 179   |  |          |  | 107   |          |  |  |           |   |  |  | 286   | 
|Accumulated depreciation of office equipment                          |  |                                 | 92    |  |          |  | 34    |          |  |  |           |   |  |  | 126   | 
|Accumulated depreciation of computer equipment                        |  |                                 | 159   |  |          |  | 64    |          |  |  |           |   |  |  | 222   | 
|Accumulated depreciation of Property, plant and equipment in progress |  |                                 |      |  |          |  |      |          |  |  |           |   |  |  |      | 
|                                                                      |  |                                 |       |  |          |  |       |          |  |  |            |   |  |  |       | 
|Total accumulated amortization and depreciation                       |  |                                 | 1,099 |  |          |  | 451   |          |  |  |           |   |  |  | 1,550 | 
|                                                                      |  |                                 |       |  |          |  |       |          |  |  |            |   |  |  |       | 
|Total, net                                                            |  |                                 | 1,734 |  |          |  | 491   |          |  |  |           |   |  |  | 2,225 | 
|                                                                      |  |                                 |       |  |          |  |       |          |  |  |            |   |  |  |       | 
|                                                                      |  |                                 |       | 
|                                                                      |  | 01/01/2015                      |       |  | Increase |  |       | Decrease |  |  | 12/31/2015 |  
|                                                                      |  | (Amounts in thousands of Euros) |      
|Laboratory equipment                                                  |  |                                 | 2,257 |  |          |  | 467   |          |  |  | (368       | ) |  |  | 2,357 | 
|Building fixtures                                                     |  |                                 | 930   |  |          |  | 8     |          |  |  |           |   |  |  | 938   | 
|Office equipment                                                      |  |                                 | 215   |  |          |  | 24    |          |  |  | (30        | ) |  |  | 209   | 
|Computer equipment                                                    |  |                                 | 322   |  |          |  | 244   |          |  |  | (95        | ) |  |  | 470   | 
|Property, plant and equipment in process                              |  |                                 | 51    |  |          |  | 3,622 |          |  |  |           |   |  |  | 3,672 | 
|                                                                      |  |                                 |       |  |          |  |       |          |  |  |            |   |  |  |       | 
|Total, gross                                                          |  |                                 | 3,775 |  |          |  | 4,360 |          |  |  | (489       | ) |  |  | 7,646 | 
|                                                                      |  |                                 |       |  |          |  |       |          |  |  |            |   |  |  |       | 
|Accumulated depreciation of laboratory equipment                      |  |                                 | 916   |  |          |  | 382   |          |  |  | (349       | ) |  |  | 948   | 
|Accumulated depreciation of the building fixtures                     |  |                                 | 286   |  |          |  | 496   |          |  |  |           |   |  |  | 782   | 
|Accumulated depreciation of office equipment                          |  |                                 | 126   |  |          |  | 35    |          |  |  | (30        | ) |  |  | 131   | 
|Accumulated depreciation of computer equipment                        |  |                                 | 222   |  |          |  | 78    |          |  |  | (95        | ) |  |  | 205   | 
|Accumulated depreciation of Property, plant and equipment in progress |  |                                 |      |  |          |  |      |          |  |  |           |   |  |  |      | 
|                                                                      |  |                                 |       |  |          |  |       |          |  |  |            |   |  |  |       | 
|Total accumulated amortization and depreciation                       |  |                                 | 1,550 |  |          |  | 990   |          |  |  | (475       | ) |  |  | 2,065 | 
|                                                                      |  |                                 |       |  |          |  |       |          |  |  |            |   |  |  |       | 
|Total, net                                                            |  |                                 | 2,225 |  |          |  | 3,370 |          |  |  | (14        | ) |  |  | 5,581 | 
|                                                                      |  |                                 |       |  |          |  |       |          |  |  |            |   |  |  |       | 

Over the three years presented, the acquisitions correspond primarily to building fixtures and to laboratory and production
equipment and material. The increase in property, plant and equipment in progress item is related to the fitting out of the new head office of the Company located at Montrouge, as well as the purchase of materials for the conception and tuning of
the new prototypes (Gen 4.0 and Cut Pack for example).

Note 6: Non-Current Financial Assets



|                                   |  |                                 |     |  |      |  |       |      |  |  |       | 
|---------------------------------- |  | ------------------------------- | --- |  | ---- |  | ----- | ---- |  |  | ----- | 
|                                   |  | December 31                     |    
|                                   |  | 2013                            |     |  | 2014 |  |       | 2015 | 
|                                   |  | (Amounts in thousands of Euros) |    
|Deposits                           |  |                                 | 82  |  |      |  | 100   |      |  |  | 716   | 
|Pledged securities                 |  |                                 | 278 |  |      |  | 385   |      |  |  | 611   | 
|Liquidity contract                 |  |                                 | 263 |  |      |  | 1,111 |      |  |  | 1,384 | 
|Total non-current financial assets |  |                                 | 624 |  |      |  | 1,596 |      |  |  | 2,711 | 

The non-current financial assets are composed of security deposits paid to the lessor and of open-ended mutual funds
(sociétés dinvestissement à capital variable SICAVs) pledged as guarantees of the ordinary rental agreements and the liquidity contract.



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Under the liquidity contract, 3,898 treasury shares were allocated for the reduction of Shareholders Equity
as at December 31, 2015 with the cash balance being maintained in financial assets. The share capital is divided in 24,205,129 shares including these 3,898 treasury shares.

Note 7: Inventories and Work in Progress



|                                                        |  |                                 |   |  |      |  |     |      |  |  |     |  
|------------------------------------------------------- |  | ------------------------------- | - |  | ---- |  | --- | ---- |  |  | --- | -
|                                                        |  | December 31                     |  
|                                                        |  | 2013                            |   |  | 2014 |  |     | 2015 | 
|                                                        |  | (Amounts in thousands of Euros) |  
|Inventories of raw materials                            |  |                                 | 7 |  |      |  | 124 |      |  |  | 69  |  
|Depreciation of inventories and work in progress        |  |                                 |  |  |      |  |    |      |  |  | (69 | )
|Total net value of the inventories and work in progress |  |                                 | 7 |  |      |  | 124 |      |  |  |    |  

The inventories and work in progress involve the Diallertest® product
which commercial partnership was settled on the 1st of September 2015.

Note 8: Customer Accounts Receivable and Other Current Assets

8.1 Customer Accounts Receivable and Related Receivables



|                                                                   |  |                                 |     |   |      |  |     |      |  |  |     |  
|------------------------------------------------------------------ |  | ------------------------------- | --- | - | ---- |  | --- | ---- |  |  | --- | -
|                                                                   |  | December 31                     |    
|                                                                   |  | 2013                            |     |   | 2014 |  |     | 2015 | 
|                                                                   |  | (Amounts in thousands of Euros) |    
|Accounts receivable and related receivables                        |  |                                 | 196 |   |      |  | 149 |      |  |  | 13  |  
|Valuation allowance (charged to Consolidated Statements of (Loss)) |  |                                 | (13 | ) |      |  | (13 | )    |  |  | (13 | )
|                                                                   |  |                                 |    
|Total net value of accounts receivable                             |  |                                 | 183 |   |      |  | 136 |      |  |  |    |  

All the customer accounts receivable have payment terms of less than one year.

Accounts receivable and related receivables relate primarily to the sales of Diallertest®



|                                                      |  |                              |                 |  |            |               |   |            |          |  |   |  |  |                        |    |  |  |  |    | 
|----------------------------------------------------- |  | ---------------------------- | --------------- |  | ---------- | ------------- | - | ---------- | -------- |  | - |  |  | ---------------------- | -- |  |  |  | -- | 
|                                                      |  |                              |                 |  | Additions  |               |   |            |          |  |   | 
|(in thousands of euros).                              |  | Balance atbeginningof period |                 |  | Charged to |               |   | Charged to |          |  |   |  |  | Balance atend ofperiod |   
|Description2015                                      |  |                              | Incomestatement |  |            | Otheraccounts |   |            | Reversal |  |  
|Valuation allowance deducted from account receivables |  |                              | 13              |  |            |               |  |            |          |  |  |  |  |                        |   |  |  |  | 13 | 
|                                                      |  |                              |                 | 
|                                                      |  |                              |                 |  | Additions  |               |   |            |          |  |   | 
|                                                      |  | Balance atbeginningof period |                 |  | Charged to |               |   | Charged to |          |  |   |  |  | Balance atend ofperiod |   
|Description2014                                      |  |                              | Incomestatement |  |            | Otheraccounts |   |            | Reversal |  |  
|Valuation allowance deducted from account receivables |  |                              | 13              |  |            |               |  |            |          |  |  |  |  |                        |   |  |  |  | 13 | 
|                                                      |  |                              |                 | 
|                                                      |  |                              |                 |  | Additions  |               |   |            |          |  |   | 
|                                                      |  | Balance atbeginningof period |                 |  | Charged to |               |   | Charged to |          |  |   |  |  | Balance atend ofperiod |   
|Description2013                                      |  |                              | Incomestatement |  |            | Otheraccounts |   |            | Reversal |  |  
|Valuation allowance deducted from Account receivables |  |                              | 45              |  |            |               |  |            |          |  |  |  |  |                        | 32 |  |  |  | 13 | 



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8.2 Other current assets

The other current assets are broken down as follows:



|                    |  |                                 |       |  |      |  |       |      |  |  |        | 
|------------------- |  | ------------------------------- | ----- |  | ---- |  | ----- | ---- |  |  | ------ | 
|                    |  | December 31                     |      
|                    |  | 2013                            |       |  | 2014 |  |       | 2015 | 
|                    |  | (Amounts in thousands of Euros) |      
|Research tax credit |  |                                 | 3,312 |  |      |  | 4,340 |      |  |  | 5,702  | 
|Other tax claims    |  |                                 | 595   |  |      |  | 1,023 |      |  |  | 2,550  | 
|Other receivables   |  |                                 |      |  |      |  | 423   |      |  |  | 1,409  | 
|Prepaid expenses    |  |                                 | 316   |  |      |  | 938   |      |  |  | 1,850  | 
|Total               |  |                                 | 4,223 |  |      |  | 6,723 |      |  |  | 11,512 | 

The other tax debt claims are primarily related to the deductible VAT as well as the reimbursement of VAT that has been
requested.

As at December 31, 2015, 2014 and 2013, prepaid expenses are comprised primarily of rental and insurance expenses, as well as legal and
scientific consulting fees. Their variation is linked to an increase in insurance premiums following the Companys public offering on the Nasdaq stock exchange in 2014 and the July 2015 fundraising.

Research Tax Credit

The Company benefits from the
provisions in Articles 244 quater B and 49 septies F of the French Tax Code related to the Research Tax Credit. In compliance with the principles described in Note 3.13, the Research Tax Credit is posted to the accounts as Other
Income during the year with which the eligible research expenditures are associated.

The changes in this Research Tax Credit over the last three
years are presented as follows:



|                                                         |  |                               |        |  
|-------------------------------------------------------- |  | ----------------------------- | ------ | -
|                                                         |  | Amounts in thousands of Euros |       
|Opening balance sheet receivable as of January 1, 2013   |  |                               | 2,522  |  
|+ Operating revenue                                      |  |                               | 3,312  |  
|- Payment received                                       |  |                               | (2,473 | )
|- Adjustment                                             |  |                               | (49    | )
|                                                         |  |                               |        |  
|Closing balance sheet receivable as of December 31, 2013 |  |                               | 3,312  |  
|                                                         |  |                               |        |  
|                                                         | 
|                                                         |  | Amounts in thousands of Euros |       
|Opening Balance Sheet Receivable as of January 1, 2014   |  |                               | 3,312  |  
|+ Operating revenue                                      |  |                               | 4,340  |  
|- Payment received                                       |  |                               | (3,312 | )
|                                                         |  |                               |        |  
|Closing Balance Sheet Receivable as of December 31, 2014 |  |                               | 4,340  |  
|                                                         |  |                               |        |  
|                                                         | 
|                                                         |  | Amounts in thousands of Euros |       
|Opening Balance Sheet Receivable as of January 1, 2015   |  |                               | 4,340  |  
|+ Operating revenue                                      |  |                               | 5,702  |  
|- Payment received                                       |  |                               | (4,322 | )
|- Adjustment                                             |  |                               | (18    | )
|                                                         |  |                               |        |  
|Closing Balance Sheet Receivable as of December 31, 2014 |  |                               | 5,702  |  
|                                                         |  |                               |        |  

The adjustments to the amount of the receivable reflect the penalties related to the fiscal verification of the Research Tax
Credit that occurred in 2015.



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##### Table of Contents

Note 9: Cash and Cash Equivalents

The cash and cash equivalents item is broken down as follows (in thousands of Euros):



|                                                                              |  |                                 |        |  |      |  |         |      |  |  |         | 
|----------------------------------------------------------------------------- |  | ------------------------------- | ------ |  | ---- |  | ------- | ---- |  |  | ------- | 
|                                                                              |  | December 31                     |       
|                                                                              |  | 2013                            |        |  | 2014 |  |         | 2015 | 
|                                                                              |  | (Amounts in thousands of Euros) |       
|Cash                                                                          |  |                                 | 826    |  |      |  | 108     |      |  |  | 178,895 | 
|Cash equivalents                                                              |  |                                 | 38,577 |  |      |  | 114,475 |      |  |  | 144,486 | 
|                                                                              |  |                                 |       
|Total cash and cash equivalent as reported in statement of financial position |  |                                 | 39,403 |  |      |  | 114,583 |      |  |  | 323,381 | 
|                                                                              |  |                                 |       
|Bank overdrafts                                                               |  |                                 |       |  |      |  | (28     | )    |  |  |        | 
|                                                                              |  |                                 |       
|Total net cash and cash equivalents as reported in the statement of cash flow |  |                                 | 39,403 |  |      |  | 114,555 |      |  |  | 323,381 | 

Cash equivalents are immediately convertible into cash at no cost. They are measured using level 1 fair value measurements.
The increase in cash and cash equivalents mainly relates to the net proceeds received as part of our July 2015 fundraising.

Note 10: Capital

10.1 Share Capital Issued

The share capital, as of
December 31, 2015, is 2,420,512.90. It is divided into 24,205,129 fully authorized, subscribed and paid-up shares with a nominal value of 0.10.

This number does not include share warrants (BSA), employee warrants (BSPCE), stock-options (SO) and performance shares
(AGA) granted to certain investors and to certain natural persons, both employees and non-employees of the Company.

All the shares give their
owners the right to a proportional share of the income and the net assets of the Company.

The table below presents the historical changes in the share
capital of the Company as of December 31, 2013, 2014 and 2015:



|           |  |                                               |  |               |         |  |               |    |          |                 |  |  |              |  |  |   |      | 
|---------- |  | --------------------------------------------- |  | ------------- | ------- |  | ------------- | -- | -------- | --------------- |  |  | ------------ |  |  | - | ---- | 
|Date       |  | Nature of the Transactions                    |  | Share Capital |         |  | Share premium |    |          | Number ofShares |  |  | Nominalvalue | 
|           |  | Balance as of January 1, 2013                 |  | K            | 1,340.8 |  |               | K | 54,612.6 |                 |  |  | 13,408,147   |  |  |  | 0.10 | 
|07/25/2013 |  | Issue of share subscription warrants          |  |               |         |  |               | K | 67.4     |                 |  |  |              |  |  |   |      | 
|11/14/2013 |  | Capital increase by issuance of common shares |  | K            | 168     |  |               | K | 14,960.9 |                 |  |  | 1,680,151    |  |  |  | 0.10 | 
|           |  |                                               |  |               |         |  |               |    |          |                 |  |  |              |  |  |   |      | 
|           |  | Balance as of December 31, 2013               |  | K            | 1,508.8 |  |               | K | 69,640.9 |                 |  |  | 15,088,298   |  |  |  | 0.10 | 



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##### Table of Contents

|           |  |                                               |  |               |         |   |              |    |           |                 |  |  |              |   |  |   |      | 
|---------- |  | --------------------------------------------- |  | ------------- | ------- | - | ------------ | -- | --------- | --------------- |  |  | ------------ | - |  | - | ---- | 
|Date       |  | Nature of the Transactions                    |  | Share Capital |         |   | Sharepremium |    |           | Number ofShares |  |  | Nominalvalue |  
|           |  | Balance as of January 1, 2014                 |  | K            | 1,508.8 |   |              | K | 69,640.9  |                 |  |  | 15,088,298   |   |  |  | 0.10 | 
|01/23/2014 |  | Capital increase by issuance of common shares |  | K            | 3.8     |   |              | K | 189.4     |                 |  |  | 37,650       |   |  |  | 0.10 | 
|02/11/2014 |  | Capital increase by issuance of common shares |  | K            | 0.5     |   |              | K | 41.2      |                 |  |  | 5,000        |   |  |  | 0.10 | 
|04/02/2014 |  | Capital increase by incorporation of reserve  |  | K            | 24.2    |   |              | K | (24.2     | )               |  |  | 242,484      |   |  |  | 0.10 | 
|06/11/2014 |  | Capital increase by issuance of common shares |  | K            | 4.5     |   |              | K | 226.4     |                 |  |  | 45,000       |   |  |  | 0.10 | 
|06/13/2014 |  | Capital increase by issuance of common shares |  | K            | 4.0     |   |              | K | 169.2     |                 |  |  | 40,005       |   |  |  | 0.10 | 
|06/18/2014 |  | Capital increase by issuance of common shares |  | K            | 1.0     |   |              | K | 44.6      |                 |  |  | 9,750        |   |  |  | 0.10 | 
|06/19/2014 |  | Capital increase by issuance of common shares |  | K            | 0.1     |   |              | K | 5.1       |                 |  |  | 1,005        |   |  |  | 0.10 | 
|07/25/2014 |  | Capital increase by incorporation of reserve  |  | K            | 4.5     |   |              | K | (4.5      | )               |  |  | 44,693       |   |  |  | 0.10 | 
|09/19/2014 |  | Capital increase by incorporation of reserve  |  | K            | 25.7    |   |              | K | (25.7     | )               |  |  | 257,418      |   |  |  | 0.10 | 
|10/03/2014 |  | Capital increase by issuance of common shares |  | K            | 2.3     |   |              | K | 105       |                 |  |  | 22,965       |   |  |  | 0.10 | 
|10/22/2014 |  | Capital increase by issuance of common shares |  | K            | 307.5   |   |              | K | 104,231.9 |                 |  |  | 3,074,686    |   |  |  | 0.10 | 
|11/01/2014 |  | Capital increase by incorporation of reserve  |  | K            | 25.7    |   |              | K | (25.7     | )               |  |  | 257,422      |   |  |  | 0.10 | 
|11/30/2014 |  | Capital increase by issuance of common shares |  | K            | 1.8     |   |              | K | 97        |                 |  |  | 17,560       |   |  |  | 0.10 | 
|11/30/2014 |  | Capital increase by issuance of common shares |  | K            | 1.7     |   |              | K | 83.3      |                 |  |  | 16,725       |   |  |  | 0.10 | 
|12/31/2014 |  | Issue of share subscription warrants          |  |               |         |   |              | K | 32.3      |                 |  |  |              |   |  |  | 0.10 | 
|12/31/2014 |  | Fees charged to share premium 2014            |  |               |         |   |              | K | (10,909.1 | )               |  |  |              |   |  |   |      | 
|           |  |                                               |  |               |         |   |              |    |           |                 |  |  |              |   |  |   |      | 
|           |  | Balance as of December 31, 2014               |  | K            | 1,916.1 |   |              | K | 163,876.8 |                 |  |  | 19,160,661   |   |  |  | 0.10 | 
|           |  |                                               |  |               |        
|Date       |  | Nature of the Transactions                    |  | Share Capital |         |   | Sharepremium |    |           | Number ofShares |  |  | Nominalvalue |  
|           |  | Balance as of January 1, 2015                 |  | K            | 1,916.1 |   |              | K | 163,876.8 |                 |  |  | 19,160,661   |   |  |  | 0.10 | 
|01/06/2015 |  | Capital increase by issuance of common shares |  | K            | 0.4     |   |              | K | 18.9      |                 |  |  | 3,750        |   |  |  | 0.10 | 
|01/07/2015 |  | Capital increase by issuance of common shares |  | K            | 1.0     |   |              | K | 59.0      |                 |  |  | 10,000       |   |  |  | 0.10 | 
|01/22/2015 |  | Capital increase by incorporation of reserve  |  | K            | 3.5     |   |              | K | (3.5      | )               |  |  | 35,360       |   |  |  | 0.10 | 
|01/30/2015 |  | Capital increase by issuance of common shares |  | K            | 9.8     |   |              | K | 476.8     |                 |  |  | 97,720       |   |  |  | 0.10 | 
|02/03/2015 |  | Capital increase by issuance of common shares |  | K            | 0.8     |   |              | K | 37.7      |                 |  |  | 7,500        |   |  |  | 0.10 | 
|02/13/2015 |  | Capital increase by issuance of common shares |  | K            | 3.8     |   |              | K | 188.6     |                 |  |  | 37,500       |   |  |  | 0.10 | 
|02/17/2015 |  | Capital increase by issuance of common shares |  | K            | 2.0     |   |              | K | 100.6     |                 |  |  | 19,995       |   |  |  | 0.10 | 
|03/04/2015 |  | Capital increase by issuance of common shares |  | K            | 1.0     |   |              | K | 59        |                 |  |  | 10,000       |   |  |  | 0.10 | 
|03/26/2015 |  | Capital increase by issuance of common shares |  | K            | 5.0     |   |              | K | 400       |                 |  |  | 50,000       |   |  |  | 0.10 | 
|04/07/2015 |  | Capital increase by issuance of common shares |  | K            | 4.0     |   |              | K | 169.2     |                 |  |  | 40,005       |   |  |  | 0.10 | 
|04/09/2015 |  | Capital increase by issuance of common shares |  | K            | 15.0    |   |              | K | 692.1     |                 |  |  | 150,375      |   |  |  | 0.10 | 
|04/28/2015 |  | Capital increase by issuance of common shares |  | K            | 1.4     |   |              | K | 77.1      |                 |  |  | 14,290       |   |  |  | 0.10 | 
|05/05/2015 |  | Issue of share subscription warrants          |  | K            |         |   |              | K | 43        |                 |  |  |              |   |  |   |      | 
|05/11/2015 |  | Capital increase by issuance of common shares |  | K            | 2.0     |   |              | K | 100.7     |                 |  |  | 20,010       |   |  |  | 0.10 | 
|06/23/2015 |  | Capital increase by issuance of common shares |  | K            | 59.1    |   |              | K | 27,029.4  |                 |  |  | 590,543      |   |  |  | 0.10 | 
|06/23/2015 |  | Capital Decrease                              |  | K            | (58.6   | ) |              | K | (26,823.4 | )               |  |  | (586,048     | ) |  |  | 0.10 | 
|07/20/2015 |  | Capital increase by issuance of common shares |  | K            | 414.0   |   |              | K | 254,932.9 |                 |  |  | 4,140,000    |   |  |  | 0.10 | 
|07/24/2015 |  | Capital increase by issuance of common shares |  | K            | 1.6     |   |              | K | 79.2      |                 |  |  | 15,750       |   |  |  | 0.10 | 
|07/25/2015 |  | Capital increase by incorporation of reserve  |  | K            | 28.6    |   |              | K | (28.6     | )               |  |  | 286,338      |   |  |  | 0.10 | 
|07/28/2015 |  | Capital increase by issuance of common shares |  | K            | 1.7     |   |              | K | 91.5      |                 |  |  | 17,000       |   |  |  | 0.10 | 
|09/18/2015 |  | Capital increase by issuance of common shares |  | K            | 0.3     |   |              | K | 46.7      |                 |  |  | 2,500        |   |  |  | 0.10 | 
|10/07/2015 |  | Capital increase by issuance of common shares |  | K            | 4.8     |   |              | K | 241.2     |                 |  |  | 47,955       |   |  |  | 0.10 | 
|12/10/2015 |  | Capital increase by issuance of common shares |  | K            | 1.8     |   |              | K | 146.9     |                 |  |  | 17,500       |   |  |  | 0.10 | 
|12/10/2015 |  | Issue of share subscription warrants          |  | K            |         |   |              | K | 99.2      |                 |  |  |              |   |  |   |      | 
|12/14/2015 |  | Capital increase by issuance of common shares |  | K            | 1.6     |   |              | K | 69.5      |                 |  |  | 16,425       |   |  |  | 0.10 | 
|12/31/2015 |  | Fees charged to share premium                 |  | K            |         |   |              | K | (18,269.7 | )               |  |  |              |   |  |   |      | 
|           |  |                                               |  |               |         |   |              |    |           |                 |  |  |              |   |  |   |      | 
|           |  | Balance as of December 31, 2015               |  | K            | 2,420.5 |   |              | K | 403,910.4 |                 |  |  | 24,205,129   |   |  |  | 0.10 | 

The fees and banks commissions related to share capital increases in 2015 were posted in deduction of the share premium,
amounting to 18.3 million.

On July 20, 2015, the Company announced the closing of its underwritten public offering of 4,140,000 ordinary
shares in the form of 8,280,000 ADSs, at a public price of $34.00 per ADS, before underwriting discounts and commissions, which included an additional 1,080,000 ADSs sold pursuant to the full exercise of the underwriters option to
purchase additional ADSs. Each ADS represents the right to receive one-half of one ordinary share.



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##### Table of Contents

As part of the public offering completed in July 2015, share capital increased by the issuance of 4,140,000
shares (K414) with a corresponding increase of 236.9 million in share premium (254.9 million gross, or 236.9 million net after deduction of fees and expenses of 18.0 million).

Initial public offering on the NASDAQ Global Market

On
October 22, 2014, DBV Technologies announced the pricing of its global offering of 2,673,641 common shares, of which 2,138,913 ordinary shares represented by 4,277,826 ADS at the subscription price of $ 21.64 per ADS, as part of a public
offering conducted in the United States, Canada and some countries outside of France, and 534,728 common shares at a price of 34 per share, under a concurrent private placement conducted by leaders banks and international sales agents in
France and in some countries outside the United States and Canada.

As part of the initial public offering completed in October 2014, share capital
increased by the issuance of 3,074,686 shares (307,469) with a corresponding increase of 93,403,561 in share premium (104,231,855 gross, or 93,403,561 net after deduction of fees and expenses for 10,828,294).

10.2 Share Warrants and Employee Warrants

The
company has issued share warrants (BSAs), employee warrants (BSPCEs), performance shares (AGAs) and stock-options (SO) as follows:



|           |  |           |  |                                         |           |  |                                               |  |       |                                                     |  |  |                                    |  |  |                       |           |  |  |   |       | 
|---------- |  | --------- |  | --------------------------------------- | --------- |  | --------------------------------------------- |  | ----- | --------------------------------------------------- |  |  | ---------------------------------- |  |  | --------------------- | --------- |  |  | - | ----- | 
|Date       |  | Type      |  | Number ofwarrantsissued as of12/31/2013 |           |  | Number ofwarrantsnull andvoid as of12/31/2013 |  |       | Number ofwarrantsoutstandingas of12/31/2013         |  |  | Maximumnumber ofshares tobe issued |  |  | Strike priceper share |          
|12/07/2007 |  | BSA       |  |                                         | 1,717     |  |                                               |  | 572   |                                                     |  |  | 1,145                              |  |  |                       | 17,175    |  |  |  | 4.33  | 
|01/21/2009 |  | BSA/BSPCE |  |                                         | 16,380    |  |                                               |  |      |                                                     |  |  | 16,380                             |  |  |                       | 245,700   |  |  |  | 4.33  | 
|01/21/2009 |  | BSPCE     |  |                                         | 2,296     |  |                                               |  |      |                                                     |  |  | 2,296                              |  |  |                       | 34,440    |  |  |  | 4.33  | 
|06/25/2010 |  | BSA       |  |                                         | 1,825     |  |                                               |  |      |                                                     |  |  | 1,825                              |  |  |                       | 27,375    |  |  |  | 4.33  | 
|01/28/2011 |  | BSA       |  |                                         | 10,039    |  |                                               |  | 7,529 |                                                     |  |  | 2,510                              |  |  |                       | 37,650    |  |  |  | 5.13  | 
|06/24/2011 |  | BSA/BSPCE |  |                                         | 32,000    |  |                                               |  |      |                                                     |  |  | 32,000                             |  |  |                       | 480,000   |  |  |  | 5.13  | 
|11/22/2011 |  | BSA/BSPCE |  |                                         | 11,377    |  |                                               |  |      |                                                     |  |  | 11,377                             |  |  |                       | 170,655   |  |  |  | 5.13  | 
|01/17/2012 |  | BSA       |  |                                         | 89,835    |  |                                               |  |      |                                                     |  |  | 89,835                             |  |  |                       | 89,835    |  |  |  | 5.13  | 
|04/02/2012 |  | AGA       |  |                                         | 669,796   |  |                                               |  |      |                                                     |  |  | 669,796                            |  |  |                       | 669,796   |  |  |  |      | 
|07/25/2012 |  | AGA       |  |                                         | 134,081   |  |                                               |  |      |                                                     |  |  | 134,081                            |  |  |                       | 134,081   |  |  |  |      | 
|09/25/2012 |  | BSA       |  |                                         | 30,000    |  |                                               |  |      |                                                     |  |  | 30,000                             |  |  |                       | 30,000    |  |  |  | 8.59  | 
|11/28/2012 |  | AGA       |  |                                         | 35,360    |  |                                               |  |      |                                                     |  |  | 35,360                             |  |  |                       | 35,360    |  |  |  |      | 
|07/25/2013 |  | BSA       |  |                                         | 73,000    |  |                                               |  |      |                                                     |  |  | 73,000                             |  |  |                       | 73,000    |  |  |  | 8.10  | 
|09/12/2013 |  | AGA       |  |                                         | 501,500   |  |                                               |  |      |                                                     |  |  | 501,500                            |  |  |                       | 501,500   |  |  |  |      | 
|09/18/2013 |  | SO        |  |                                         | 518,000   |  |                                               |  |      |                                                     |  |  | 518,000                            |  |  |                       | 518,000   |  |  |  | 7.57  | 
|           |  |           |  |                                         |           |  |                                               |  |       |                                                     |  |  |                                    |  |  |                       |           |  |  |   |       | 
|Total      |  |           |  |                                         | 2,127,206 |  |                                               |  | 8,101 |                                                     |  |  | 2,119,105                          |  |  |                       | 3,064,567 |  |  |   |       | 
|           |  |           |  |                                         |           |  |                                               |  |       |                                                     |  |  |                                    |  |  |                       |           |  |  |   |       | 
|           |  |           |  |                                         |           | 
|Date       |  | Type      |  | Number ofwarrantsissued as of12/31/2014 |           |  | Number ofwarrantsnull andvoid as of12/31/2014 |  |       | Number ofwarrantsnull andoutstandingas of12/31/2014 |  |  | Maximumnumber ofshares tobe issued |  |  | Strike priceper share |          
|12/07/2007 |  | BSA       |  |                                         | 1,717     |  |                                               |  | 572   |                                                     |  |  | 1,145                              |  |  |                       | 17,175    |  |  |  | 4.33  | 
|01/21/2009 |  | BSA/BSPCE |  |                                         | 16,380    |  |                                               |  |      |                                                     |  |  | 13,713                             |  |  |                       | 205,695   |  |  |  | 4.33  | 
|01/21/2009 |  | BSPCE     |  |                                         | 2,296     |  |                                               |  |      |                                                     |  |  |                                   |  |  |                       |          |  |  |  | 4.33  | 
|06/25/2010 |  | BSA       |  |                                         | 1,825     |  |                                               |  |      |                                                     |  |  | 1,825                              |  |  |                       | 27,375    |  |  |  | 4.33  | 
|01/28/2011 |  | BSA       |  |                                         | 10,039    |  |                                               |  | 7,529 |                                                     |  |  |                                   |  |  |                       |          |  |  |  | 5.13  | 
|06/24/2011 |  | BSA/BSPCE |  |                                         | 32,000    |  |                                               |  |      |                                                     |  |  | 28,933                             |  |  |                       | 433,995   |  |  |  | 5.13  | 
|11/22/2011 |  | BSA/BSPCE |  |                                         | 11,377    |  |                                               |  |      |                                                     |  |  | 9,373                              |  |  |                       | 140,595   |  |  |  | 5.13  | 
|01/17/2012 |  | BSA       |  |                                         | 89,835    |  |                                               |  |      |                                                     |  |  | 89,835                             |  |  |                       | 89,835    |  |  |  | 5.13  | 
|04/02/2012 |  | AGA       |  |                                         | 669,796   |  |                                               |  |      |                                                     |  |  |                                   |  |  |                       |          |  |  |  |      | 
|07/25/2012 |  | AGA       |  |                                         | 134,081   |  |                                               |  |      |                                                     |  |  |                                   |  |  |                       |          |  |  |  |      | 
|09/25/2012 |  | BSA       |  |                                         | 30,000    |  |                                               |  |      |                                                     |  |  | 25,000                             |  |  |                       | 25,000    |  |  |  | 8.59  | 
|11/28/2012 |  | AGA       |  |                                         | 35,360    |  |                                               |  |      |                                                     |  |  | 35,360                             |  |  |                       | 35,360    |  |  |  |      | 
|07/25/2013 |  | BSA       |  |                                         | 73,000    |  |                                               |  |      |                                                     |  |  | 70,500                             |  |  |                       | 70,500    |  |  |  | 8.10  | 
|09/12/2013 |  | AGA       |  |                                         | 501,500   |  |                                               |  |      |                                                     |  |  | 420,000                            |  |  |                       | 420,000   |  |  |  |      | 
|09/18/2013 |  | SO        |  |                                         | 518,000   |  |                                               |  |      |                                                     |  |  | 471,000                            |  |  |                       | 471,000   |  |  |  | 7.57  | 
|06/03/2014 |  | BSA       |  |                                         | 10,000    |  |                                               |  |      |                                                     |  |  | 10,000                             |  |  |                       | 10,000    |  |  |  | 18.79 | 
|06/03/2014 |  | AGA       |  |                                         | 186,000   |  |                                               |  |      |                                                     |  |  | 186,000                            |  |  |                       | 186,000   |  |  |  |      | 
|06/03/2014 |  | SO        |  |                                         | 75,000    |  |                                               |  |      |                                                     |  |  | 75,000                             |  |  |                       | 75,000    |  |  |  | 19.01 | 
|           |  |           |  |                                         |           |  |                                               |  |       |                                                     |  |  |                                    |  |  |                       |           |  |  |   |       | 
|Total      |  |           |  |                                         | 2,398,206 |  |                                               |  | 8,101 |                                                     |  |  | 1,437,684                          |  |  |                       | 2,207,530 |  |  |   |       | 
|           |  |           |  |                                         |           |  |                                               |  |       |                                                     |  |  |                                    |  |  |                       |           |  |  |   |       | 



F-24



---

##### Table of Contents

|           |  |           |  |                                         |           |  |                                               |  |         |                                                     |  |  |                                    |  |  |                       |           |  |  |   |       | 
|---------- |  | --------- |  | --------------------------------------- | --------- |  | --------------------------------------------- |  | ------- | --------------------------------------------------- |  |  | ---------------------------------- |  |  | --------------------- | --------- |  |  | - | ----- | 
|Date       |  | Type      |  | Number ofwarrantsissued as of12/31/2015 |           |  | Number ofwarrantsnull andvoid as of12/31/2015 |  |         | Number ofwarrantsnull andoutstandingas of12/31/2015 |  |  | Maximumnumber ofshares tobe issued |  |  | Strike priceper share |          
|12/07/2007 |  | BSA       |  |                                         | 1,717     |  |                                               |  | 572     |                                                     |  |  | 859                                |  |  |                       | 12,885    |  |  |  | 4.33  | 
|01/21/2009 |  | BSA/BSPCE |  |                                         | 16,380    |  |                                               |  |        |                                                     |  |  | 4,041                              |  |  |                       | 60,615    |  |  |  | 4.33  | 
|01/21/2009 |  | BSPCE     |  |                                         | 2,296     |  |                                               |  |        |                                                     |  |  |                                   |  |  |                       |          |  |  |  | 4.33  | 
|06/25/2010 |  | BSA       |  |                                         | 1,825     |  |                                               |  |        |                                                     |  |  | 730                                |  |  |                       | 10,950    |  |  |  | 4.33  | 
|01/28/2011 |  | BSA       |  |                                         | 10,039    |  |                                               |  | 7,529   |                                                     |  |  |                                   |  |  |                       |          |  |  |  | 5.13  | 
|06/24/2011 |  | BSA/BSPCE |  |                                         | 32,000    |  |                                               |  |        |                                                     |  |  | 13,465                             |  |  |                       | 201,975   |  |  |  | 5.13  | 
|11/22/2011 |  | BSA/BSPCE |  |                                         | 11,377    |  |                                               |  |        |                                                     |  |  | 2,509                              |  |  |                       | 37,635    |  |  |  | 5.13  | 
|01/17/2012 |  | BSA       |  |                                         | 89,835    |  |                                               |  |        |                                                     |  |  | 89,835                             |  |  |                       | 89,835    |  |  |  | 5.13  | 
|04/02/2012 |  | AGA       |  |                                         | 669,796   |  |                                               |  | 1,860   |                                                     |  |  |                                   |  |  |                       |          |  |  |  |      | 
|07/25/2012 |  | AGA       |  |                                         | 134,081   |  |                                               |  |        |                                                     |  |  |                                   |  |  |                       |          |  |  |  |      | 
|09/25/2012 |  | BSA       |  |                                         | 30,000    |  |                                               |  |        |                                                     |  |  | 10,000                             |  |  |                       | 10,000    |  |  |  | 8.59  | 
|11/28/2012 |  | AGA       |  |                                         | 35,360    |  |                                               |  |        |                                                     |  |  |                                   |  |  |                       |          |  |  |  |      | 
|07/25/2013 |  | BSA       |  |                                         | 73,000    |  |                                               |  | 6       |                                                     |  |  | 13,000                             |  |  |                       | 13,000    |  |  |  | 8.10  | 
|09/12/2013 |  | AGA       |  |                                         | 501,500   |  |                                               |  | 113,333 |                                                     |  |  | 101,829                            |  |  |                       | 101,829   |  |  |  |      | 
|09/18/2013 |  | SO        |  |                                         | 518,000   |  |                                               |  | 47,000  |                                                     |  |  | 471,000                            |  |  |                       | 471,000   |  |  |  | 7.57  | 
|06/03/2014 |  | BSA       |  |                                         | 10,000    |  |                                               |  |        |                                                     |  |  | 5,000                              |  |  |                       | 5,000     |  |  |  | 18.79 | 
|06/03/2014 |  | AGA       |  |                                         | 186,000   |  |                                               |  | 30,000  |                                                     |  |  | 156,000                            |  |  |                       | 156,000   |  |  |  |      | 
|06/03/2014 |  | SO        |  |                                         | 75,000    |  |                                               |  |        |                                                     |  |  | 75,000                             |  |  |                       | 75,000    |  |  |  | 19.01 | 
|03/24/2015 |  | BSA       |  |                                         | 10,000    |  |                                               |  |        |                                                     |  |  | 10,000                             |  |  |                       | 10,000    |  |  |  | 43.00 | 
|06/23/2015 |  | SO        |  |                                         | 120,000   |  |                                               |  |        |                                                     |  |  | 120,000                            |  |  |                       | 120,000   |  |  |  | 48.90 | 
|09/30/2015 |  | AGA       |  |                                         | 708,500   |  |                                               |  |        |                                                     |  |  | 708,500                            |  |  |                       | 708,500   |  |  |  |      | 
|11/19/2015 |  | SO        |  |                                         | 195,000   |  |                                               |  |        |                                                     |  |  | 195,000                            |  |  |                       | 195,000   |  |  |  | 66.06 | 
|11/19/2015 |  | BSA       |  |                                         | 15,000    |  |                                               |  |        |                                                     |  |  | 15,000                             |  |  |                       | 15,000    |  |  |  | 66.06 | 
|12/15/2015 |  | AGA       |  |                                         | 42,000    |  |                                               |  |        |                                                     |  |  | 42,000                             |  |  |                       | 42,000    |  |  |  |      | 
|           |  |           |  |                                         |           |  |                                               |  |         |                                                     |  |  |                                    |  |  |                       |           |  |  |   |       | 
|Total      |  |           |  |                                         | 3,488,706 |  |                                               |  | 200,300 |                                                     |  |  | 2,033,768                          |  |  |                       | 2,336,224 |  |  |   |       | 
|           |  |           |  |                                         |           |  |                                               |  |         |                                                     |  |  |                                    |  |  |                       |           |  |  |   |       | 

The totals presented above do not include the warrants cancelled prior to December 31, 2009.

As part of the initial public offering on Euronext, the nominal value of the shares underwent a fifteen-for-one share split following the decision of the
Combined General Meeting of December 9, 2011.

The impact of the share-based payments on the Consolidated Statements of (Loss) is presented in Note
17.



F-25



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##### Table of Contents

Note 11: Financial Liabilities

11.1 Conditional Advances

The conditional advances
from public institutions are subject to contracts with OSEO and COFACE.

As of December 31, 2015, the Company had two advance contracts with OSEO
Innovation, and a contract with COFACE. These advances do not bear interest and are 100% repayable at their nominal value in the event of technical and/or commercial success. The 3rd OSEO advance
and the COFACE advance do not bear interest.

The Company also benefited from a third grant from BpiFrance Financement in November 2014.

The portion of the conditional advances for terms longer than one year is classified as non-current liabilities, while the portion for terms of less than one
year is classified as current liabilities.

The table below presents the details of the debts recorded on the statement of financial position by the type
of conditional advance:



|                                            |  |                 |          |   |                 |  |          |                 |  |  |        |   |  |       |      |   |  |  |         |  
|------------------------------------------- |  | --------------- | -------- | - | --------------- |  | -------- | --------------- |  |  | ------ | - |  | ----- | ---- | - |  |  | ------- | -
|(amounts in thousands of Euros)             |  | 2nd OSEOadvance |          |   | 3rd OSEOadvance |  |          | 4th OSEOadvance |  |  | COFACE |   |  | Total |     
|Opening Balance Sheet Debt as of 1/1/2013   |  |                 | 257      |   |                 |  | 250      |                 |  |  |       |   |  |       | 127  |   |  |  | 634     |  
|+ receipts                                  |  |                 |         |   |                 |  | 256      |                 |  |  | 903.5  |   |  |       |     |   |  |  | 1,159.5 |  
|- repayments                                |  |                 | (260     | ) |                 |  |         |                 |  |  |       |   |  |       |     |   |  |  | (260    | )
|+/- other transactions                      |  |                 | 3        |   |                 |  | (2       | )               |  |  | (111   | ) |  |       | 19   |   |  |  | (91     | )
|                                            |  |                 |          |   |                 |  |          |                 |  |  |        |   |  |       |      |   |  |  |         |  
|Opening Balance Sheet Debt as of 12/31/2013 |  |                 |          |   |                 |  | 504      |                 |  |  | 792    |   |  |       | 146  |   |  |  | 1,443   |  
|Of which:                                   |  |                 |          |   |                 |  |          |                 |  |  |        |   |  |       |      |   |  |  |         |  
|Non-current portion                         |  |                 |          |   |                 |  |          |                 |  |  |        |   |  |       |      |   |  |  | 1,317   |  
|Current portion                             |  |                 |          |   |                 |  |          |                 |  |  |        |   |  |       |      |   |  |  | 126     |  
|                                            |  |                 |          |   |                
|                                            |  | 3rd OSEOadvance |          |   | 4th OSEOadvance |  |          | BPIadvance      |  |  | COFACE |   |  | Total |     
|Opening Balance Sheet Debt as of 1/1/2014   |  |                 | 504      |   |                 |  | 792      |                 |  |  |       |   |  |       | 146  |   |  |  | 1,443   |  
|+ receipts                                  |  |                 | 128      |   |                 |  |         |                 |  |  | 3,000  |   |  |       |     |   |  |  | 3,128   |  
|- repayments                                |  |                 | (128     | ) |                 |  |         |                 |  |  |       |   |  |       |     |   |  |  | (128    | )
|+/- other transactions                      |  |                 | 2        |   |                 |  | 13       |                 |  |  | (416   | ) |  |       | 5    |   |  |  | (396    | )
|                                            |  |                 |          |   |                 |  |          |                 |  |  |        |   |  |       |      |   |  |  |         |  
|Opening Balance Sheet Debt as of 12/31/2014 |  |                 | 507      |   |                 |  | 805      |                 |  |  | 2,584  |   |  |       | 151  |   |  |  | 4,047   |  
|Of which:                                   |  |                 |          |   |                 |  |          |                 |  |  |        |   |  |       |      |   |  |  |         |  
|Non-current portion                         |  |                 |          |   |                 |  |          |                 |  |  |        |   |  |       |      |   |  |  | 3,855   |  
|Current portion                             |  |                 |          |   |                 |  |          |                 |  |  |        |   |  |       |      |   |  |  | 192     |  
|Stated interest rate                        |  |                 | None     |   |                 |  | 2.05     | %               |  |  | None   |   |  |       | None |   |  |  |         |  
|                                            |  |                 |          |   |                 |  |          |                 |  |  |        |   |  |       |      |   |  |  |         |  
|Discount rate                               |  |                 | 0.4%-1.9 | % |                 |  | 1.5%-1.8 | %               |  |  | 3.2    | % |  |       | 4.25 | % |  |  |         |  
|                                            |  |                 |          |   |                 |  |          |                 |  |  |        |   |  |       |      |   |  |  |         |  
|Maturity (in years)                         |  |                 | 0-3      |   |                 |  | 7-9      |                 |  |  | 2-7    |   |  |       |     |   |  |  |         |  
|                                            |  |                 |          |   |                 |  |          |                 |  |  |        |   |  |       |      |   |  |  |         |  
|                                            |  |                 |          |   |                
|                                            |  | 3rd OSEOadvance |          |   | 4th OSEOadvance |  |          | BPIadvance      |  |  | COFACE |   |  | Total |     
|Opening Balance Sheet Debt as of 01/01/2015 |  |                 | 506      |   |                 |  | 805      |                 |  |  | 2,584  |   |  |       | 151  |   |  |  | 4,047   |  
|+ receipts                                  |  |                 |         |   |                 |  | 865      |                 |  |  |       |   |  |       |     |   |  |  | 865     |  
|- repayments                                |  |                 | (192     | ) |                 |  |         |                 |  |  |       |   |  |       |     |   |  |  | (192    | )
|+/- other transactions                      |  |                 | 3        |   |                 |  | (2       | )               |  |  | 82     |   |  |       | 5    |   |  |  | 89      |  
|                                            |  |                 |          |   |                 |  |          |                 |  |  |        |   |  |       |      |   |  |  |         |  
|Opening Balance Sheet Debt as of 12/31/2015 |  |                 | 318      |   |                 |  | 1,669    |                 |  |  | 2,666  |   |  |       | 156  |   |  |  | 4,809   |  
|Of which:                                   |  |                 |          |   |                 |  |          |                 |  |  |        |   |  |       |      |   |  |  |         |  
|Non-current portion                         |  |                 |          |   |                 |  |          |                 |  |  |        |   |  |       |      |   |  |  | 4,681   |  
|Current portion                             |  |                 |          |   |                 |  |          |                 |  |  |        |   |  |       |      |   |  |  | 128     |  
|Stated interest rate                        |  |                 | None     |   |                 |  | 2.05     | %               |  |  | None   |   |  |       | None |   |  |  |         |  
|                                            |  |                 |          |   |                 |  |          |                 |  |  |        |   |  |       |      |   |  |  |         |  
|Discount rate                               |  |                 | 0.4%-1.9 | % |                 |  | 1.5%-1.8 | %               |  |  | 3.2    | % |  |       | 4.25 | % |  |  |         |  
|                                            |  |                 |          |   |                 |  |          |                 |  |  |        |   |  |       |      |   |  |  |         |  
|Maturity (in years)                         |  |                 | 0-3      |   |                 |  | 7-9      |                 |  |  | 2-7    |   |  |       |     |   |  |  |         |  
|                                            |  |                 |          |   |                 |  |          |                 |  |  |        |   |  |       |      |   |  |  |         |  



F-26



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##### Table of Contents

The changes appearing in Other transactions are comprised of the effect of discounting conditional
advances.

Second OSEO Advance

On
January 10, 2005, DBV Technologies obtained from OSEO a repayable financial assistance for innovation in the amount of 600,000 for a project to design a high-speed prototype machine for the production and development of second-generation
patches intended for the detection of various allergies. The principal steps of this advance are the following:



| |  |  | 300,000 were paid to the Company in 2005 upon the signing of the contract;
| | - |  | ---------------------------------------------------------------------------



| |  |  | 180,000 were paid to the Company in 2008;
| | - |  | ------------------------------------------



| |  |  | the balance of 120,000 was received in 2010.
| | - |  | ---------------------------------------------

The terms of repayment are the following:



| |  |  | the first repayment of 140,000 made in 2011;
| | - |  | ---------------------------------------------



| |  |  | the second repayment in the amount of 200,000 made in 2012;
| | - |  | ------------------------------------------------------------



| |  |  | the third and final repayment in the amount of 260,000 made in 2013.
| | - |  | ---------------------------------------------------------------------

Third OSEO Advance

In 2011, the Company was notified by OSEO Innovation of a new grant in the form of a conditional advance of up to 640,000 to finance the
development of its program of treatment of the allergy to proteins in cows milk.

The amount of the assistance was paid as follows:



| |  |  | 256,000 after the contract was signed;
| | - |  | ---------------------------------------



| |  |  | 256,000 from June 30, 2012 upon a call for funds;
| | - |  | --------------------------------------------------



| |  |  | the balance of 128,000 after confirmation of the end of the program notified on December 31, 2013.
| | - |  | ---------------------------------------------------------------------------------------------------

The first payment of 256,000 was received in 2011.

The
second payment of 256,000 was received in 2013.

The final balance of 128,000 has been received in 2014.

In the event of technical or commercial success of the program, the repayment schedule will be the following:



| |  |  | 64,000 no later than September 30, 2014;
| | - |  | -----------------------------------------



| |  |  | 64,000 no later than December 31, 2014;
| | - |  | ----------------------------------------



| |  |  | 64,000 no later than March 31, 2015;
| | - |  | -------------------------------------



| |  |  | 64,000 no later than June 30, 2015;
| | - |  | ------------------------------------



| |  |  | 32,000 no later than September 30, 2015;
| | - |  | -----------------------------------------



| |  |  | 32,000 no later than December 31, 2015;
| | - |  | ----------------------------------------



| |  |  | 32,000 no later than March 31, 2016;
| | - |  | -------------------------------------



| |  |  | 32,000 no later than June 30, 2016;
| | - |  | ------------------------------------



| |  |  | 32,000 no later than September 30, 2016;
| | - |  | -----------------------------------------



| |  |  | 32,000 no later than December 31, 2016;
| | - |  | ----------------------------------------



| |  |  | 32,000 no later than March 31, 2017;
| | - |  | -------------------------------------



| |  |  | 32,000 no later than June 30, 2017;
| | - |  | ------------------------------------



| |  |  | 32,000 no later than September 30, 2017;
| | - |  | -----------------------------------------



| |  |  | 32,000 no later than December 31, 2017;
| | - |  | ----------------------------------------



F-27



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##### Table of Contents

| |  |  | 32,000 no later than March 31, 2018;
| | - |  | -------------------------------------



| |  |  | 32,000 no later than June 30, 2018.
| | - |  | ------------------------------------

Regardless of the outcome of the development program, a fixed
sum of 256,000 must be repaid in four quarterly instalments of 64,000 beginning on September 30, 2014.

Fourth OSEO Advance

In 2013, OSEO has provided assistance in the form of conditional advances for 3,206,162 to DBV Technologies as part of a collaborative
research and clinical development in mite allergy in young children. ImmunaVia, the program, will be funded according to the following schedule, subject to the progress of the program:



| |  |  | 903,500 paid in April 2013;
| | - |  | ----------------------------



| |  |  | 903,500 in October 2014;
| | - |  | -------------------------



| |  |  | 918,000 in October 2015;
| | - |  | -------------------------



| |  |  | 481,162 in April 2018.
| | - |  | -----------------------

The funds of October 2014, were finally received on January 22, 2015 for an
amount of 864,989.

Such conditional advance bears interest at an annual rate of 2.05%. In case of technical or commercial success of the project,
the repayment schedule, for a total amount of 3,750,000 (including interest), is as follows:



| |  |  | 400,000 on or before June 30, 2021;
| | - |  | ------------------------------------



| |  |  | 800,000 on or before June 30, 2022;
| | - |  | ------------------------------------



| |  |  | 1,100,000 no later than June 30, 2023;
| | - |  | ---------------------------------------



| |  |  | 1,450,000 no later than June 30, 2024.
| | - |  | ---------------------------------------

Furthermore, the financing program includes additional
payment by OSEO to the company for a total of 1,919,056 in non-refundable subsidies.

BpiFrance Financement Interest-Free Loan

In 2014, BpiFrance Financement granted an interest-free Innovation loan of 3,000,000 to DBV Technologies to help financing the pharmaceutical development
of Viaskin Milk. This amount was received in a single disbursement on November 27, 2014.

The planned repayment schedule is as follows:



| |  |  | 150,000 on June 30, 2017;
| | - |  | --------------------------



| |  |  | 150,000 on September 30, 2017;
| | - |  | -------------------------------



| |  |  | 150,000 on December 31, 2017;
| | - |  | ------------------------------



| |  |  | 150,000 on March 31, 2018;
| | - |  | ---------------------------



| |  |  | 150,000 on June 30, 2018;
| | - |  | --------------------------



| |  |  | 150,000 on September 30, 2018;
| | - |  | -------------------------------



| |  |  | 150,000 on December 31, 2018;
| | - |  | ------------------------------



| |  |  | 150,000 on March 31, 2019;
| | - |  | ---------------------------



| |  |  | 150,000 on June 30, 2019;
| | - |  | --------------------------



| |  |  | 150,000 on September 30, 2019;
| | - |  | -------------------------------



| |  |  | 150,000 on December 31, 2019;
| | - |  | ------------------------------



| |  |  | 150,000 on March 31, 2020;
| | - |  | ---------------------------



| |  |  | 150,000 on June 30, 2020;
| | - |  | --------------------------



| |  |  | 150,000 on September 30, 2020;
| | - |  | -------------------------------



| |  |  | 150,000 on December 31, 2020;
| | - |  | ------------------------------



| |  |  | 150,000 on March 31, 2021;
| | - |  | ---------------------------



| |  |  | 150,000 on June 30, 2021;
| | - |  | --------------------------



F-28



---

##### Table of Contents

| |  |  | 150,000 on September 30, 2021;
| | - |  | -------------------------------



| |  |  | 150,000 on December 31, 2021;
| | - |  | ------------------------------



| |  |  | 150,000 on March 31, 2022;
| | - |  | ---------------------------

COFACE Advance

On September 6, 2007, DBV Technologies signed a prospecting insurance contract with Compagnie Française dAssurance pour le Commerce
Extérieur (COFACE) in order to promote its Diallertest product internationally. Under the terms of that contract, the Company received conditional advances of up to 147 thousands. DBV Technologies must repay these advances
in amounts of up to 7% of its revenue from the export sales of its Diallertest product, until April 30, 2017.

As of December 31, 2015, the
remained amount was 156 thousands compared to 151 thousands on December 31st 2014.

The accounting treatment resulting from any changes in the anticipated flow of repayments of this advance is described in Note 3.10.

11.2 Due Dates of the Financial Liabilities

Due
dates of the financial liabilities recognized as of December 31, 2013



|                                               |  |                                 |       |  |                   |  |       |                  |  |  |                    |  |  |  |     | 
|---------------------------------------------- |  | ------------------------------- | ----- |  | ----------------- |  | ----- | ---------------- |  |  | ------------------ |  |  |  | --- | 
|                                               |  | GrossAmount                     |       |  | Less thanOne Year |  |       | One toFive Years |  |  | Morethan FiveYears | 
|                                               |  | (Amounts in thousands of Euros) |      
|Non-current conditional advances               |  |                                 | 1,317 |  |                   |  |      |                  |  |  | 524                |  |  |  | 792 | 
|Current conditional advances                   |  |                                 | 126   |  |                   |  | 126   |                  |  |  |                   |  |  |  |    | 
|Supplier accounts payable and related payables |  |                                 | 1,497 |  |                   |  | 1,497 |                  |  |  |                    |  |  |  |     | 
|                                               |  |                                 |       |  |                   |  |       |                  |  |  |                    |  |  |  |     | 
|Total financial liabilities                    |  |                                 | 2,940 |  |                   |  | 1,624 |                  |  |  | 524                |  |  |  | 792 | 
|                                               |  |                                 |       |  |                   |  |       |                  |  |  |                    |  |  |  |     | 

As detailed in Note 13, other current liabilities are primarily social security and tax liabilities and are mainly due in less
than one year from the reporting date.

Due dates of the financial liabilities recognized as of December 31, 2014



|                                               |  |                                 |       |  |                   |  |       |                  |  |  |                    |  |  |  |       | 
|---------------------------------------------- |  | ------------------------------- | ----- |  | ----------------- |  | ----- | ---------------- |  |  | ------------------ |  |  |  | ----- | 
|                                               |  | GrossAmount                     |       |  | Less thanOne Year |  |       | One toFive Years |  |  | Morethan FiveYears | 
|                                               |  | (Amounts in thousands of Euros) |      
|Non-current conditional advances               |  |                                 | 3,855 |  |                   |  |      |                  |  |  | 1,940              |  |  |  | 1,914 | 
|Non-current financial rent debts               |  |                                 | 33    |  |                   |  |       |                  |  |  | 33                 |  |  |  |       | 
|Current conditional advances                   |  |                                 | 192   |  |                   |  | 192   |                  |  |  |                   |  |  |  |      | 
|Current financial rent debts                   |  |                                 | 21    |  |                   |  | 21    |                  |  |  |                    |  |  |  |       | 
|Supplier accounts payable and related payables |  |                                 | 1,875 |  |                   |  | 1,875 |                  |  |  |                    |  |  |  |       | 
|                                               |  |                                 |       |  |                   |  |       |                  |  |  |                    |  |  |  |       | 
|Total financial liabilities                    |  |                                 | 5,976 |  |                   |  | 2,087 |                  |  |  | 1,974              |  |  |  | 1,914 | 
|                                               |  |                                 |       |  |                   |  |       |                  |  |  |                    |  |  |  |       | 

Due dates of the financial liabilities recognized as of December 31, 2015



|                                               |  |                                 |        |  |                   |  |        |                  |  |  |                    |  |  |  |       | 
|---------------------------------------------- |  | ------------------------------- | ------ |  | ----------------- |  | ------ | ---------------- |  |  | ------------------ |  |  |  | ----- | 
|                                               |  | GrossAmount                     |        |  | Less thanOne Year |  |        | One toFive Years |  |  | Morethan FiveYears | 
|                                               |  | (Amounts in thousands of Euros) |       
|Non-current conditional advances               |  |                                 | 4,681  |  |                   |  |       |                  |  |  | 2,378              |  |  |  | 2,302 | 
|Non-current financial rent debts               |  |                                 | 12     |  |                   |  |        |                  |  |  | 12                 |  |  |  |       | 
|Current conditional advances                   |  |                                 | 128    |  |                   |  | 128    |                  |  |  |                   |  |  |  |      | 
|Current financial rent debts                   |  |                                 | 21     |  |                   |  | 21     |                  |  |  |                    |  |  |  |       | 
|Supplier accounts payable and related payables |  |                                 | 10,034 |  |                   |  | 10,034 |                  |  |  |                    |  |  |  |       | 
|                                               |  |                                 |        |  |                   |  |        |                  |  |  |                    |  |  |  |       | 
|Total financial liabilities                    |  |                                 | 14,876 |  |                   |  | 10,183 |                  |  |  | 2,391              |  |  |  | 2,302 | 
|                                               |  |                                 |        |  |                   |  |        |                  |  |  |                    |  |  |  |       | 



F-29



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##### Table of Contents

As detailed in Note 13, other current liabilities are primarily social security and tax liabilities and are
mainly due in less than one year from the reporting date.

Note 12: Non-Current Provisions



|                               |  |                                 |     |  |      |  |     |      |  |  |     | 
|------------------------------ |  | ------------------------------- | --- |  | ---- |  | --- | ---- |  |  | --- | 
|                               |  | December 31                     |    
|                               |  | 2013                            |     |  | 2014 |  |     | 2015 | 
|                               |  | (Amounts in thousands of Euros) |    
|Pension retirement obligations |  |                                 | 291 |  |      |  | 531 |      |  |  | 490 | 
|                               |  |                                 |    
|Total                          |  |                                 | 291 |  |      |  | 531 |      |  |  | 490 | 

Commitments for Compensation Payable to Employees Upon Their Retirement



|                                               |  |                               |      |  
|---------------------------------------------- |  | ----------------------------- | ---- | -
|                                               |  | Amounts in
thousands of Euros |     
|As of January 1, 2013                          |  |                               | (254 | )
|Costs of services rendered (operating expense) |  |                               | (84  | )
|Interest expense (finance expense)             |  |                               | (6   | )
|Benefit paid                                   |  |                               |     |  
|Actuarial losses                               |  |                               | 53   |  
|                                               |  |                               |      |  
|As of December 31, 2013                        |  |                               | (291 | )
|Costs of services rendered (operating expense) |  |                               | (75  | )
|Interest expense (finance expense)             |  |                               | (12  | )
|Benefit paid                                   |  |                               |     |  
|Actuarial gains                                |  |                               | (153 | )
|                                               |  |                               |      |  
|As of December 31, 2014                        |  |                               | (531 | )
|Costs of services rendered (operating expense) |  |                               | (116 | )
|Interest expense (finance expense)             |  |                               | (9   | )
|Benefit paid                                   |  |                               |     |  
|Actuarial gains                                |  |                               | 166  |  
|                                               |  |                               |      |  
|As of December 31, 2015                        |  |                               | (490 | )
|                                               |  |                               |      |  

As part of the estimation of the retirement commitments, the following assumptions were used for all categories of employees:



|                                |  |      |      |   |      |  |      |      |  |  |      |  
|------------------------------- |  | ---- | ---- | - | ---- |  | ---- | ---- |  |  | ---- | -
|                                |  | 2013 |      |   | 2014 |  |      | 2015 | 
|% social security contributions |  |      | 50.0 | % |      |  | 50.0 | %    |  |  | 50.0 | %
|Salary increases                |  |      | 4.0  | % |      |  | 4.0  | %    |  |  | 2.0  | %
|Discount rate                   |  |      | 3.16 | % |      |  | 1.30 | %    |  |  | 2.08 | %



| |  |  | Retirement age: 65 years old;
| | - |  | -----------------------------



| |  |  | Terms of retirement: voluntary retirement;
| | - |  | ------------------------------------------



| |  |  | Life table: INSEE 2010 table;
| | - |  | -----------------------------



| |  |  | Collective agreement: Convention Collective Nationale de lIndustrie Pharmaceutique (National Collective Agreement in the Pharmaceutical Industry);
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Turn-over of the personnel declining with age.
| | - |  | ----------------------------------------------

The discount rates come from the corporate AA zero coupon
yield curve.

No employee has retired during the last three fiscal years presented.

Note 13: Supplier Accounts Receivable and Other Current Liabilities

13.1 Supplier Accounts Payable and Related Payables

No discounting was performed on the supplier accounts payable and related payables to the extent that the amounts did not present payment terms longer than one
year at the end of each fiscal year presented.



F-30



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##### Table of Contents

13.2 Other Current Liabilities



|                                         |  |                                 |       |  |      |  |       |      |  |  |       | 
|---------------------------------------- |  | ------------------------------- | ----- |  | ---- |  | ----- | ---- |  |  | ----- | 
|                                         |  | December 31                     |      
|                                         |  | 2013                            |       |  | 2014 |  |       | 2015 | 
|                                         |  | (Amounts in thousands of Euros) |      
|Social security contribution liabilities |  |                                 | 1,709 |  |      |  | 2,160 |      |  |  | 4,464 | 
|Tax liabilities                          |  |                                 | 56    |  |      |  | 114   |      |  |  | 388   | 
|Other debts                              |  |                                 | 52    |  |      |  | 110   |      |  |  | 195   | 
|Deferred revenues from subsidies         |  |                                 | 794   |  |      |  | 1,052 |      |  |  | 791   | 
|Total                                    |  |                                 | 2,611 |  |      |  | 3,436 |      |  |  | 5,838 | 

The other liabilities include the short-term debts to employees, as well as social welfare and tax agencies. Deferred revenues
include subsidies and conditional advances.

Note 14: Financial Instruments Recognized in the Consolidated Statements of Financial Position and Related
Effect on the Consolidated Statements of (Loss)



|                                                     |  |                                                            |         |  |                                                     |  |         |                         |  |  |                         |  |  |            |       |  |  |  |         | 
|---------------------------------------------------- |  | ---------------------------------------------------------- | ------- |  | --------------------------------------------------- |  | ------- | ----------------------- |  |  | ----------------------- |  |  | ---------- | ----- |  |  |  | ------- | 
|2013                                                 |  | Book valuein theConsolidatedStatements ofFinancialPosition |         |  | Fair valuethroughConsolidatedStatements of(Loss)(3) |  |         | Loans andreceivables(1) |  |  | Debt atamortizedcost(2) |  |  | Fair Value |      
|                                                     |  | (Amounts in thousands of Euros)                            |        
|Financial assets                                     |  |                                                            |         |  |                                                     |  |         |                         |  |  |                         |  |  |            |       |  |  |  |         | 
|Non-current financial assets                         |  |                                                            | 624     |  |                                                     |  | 541     |                         |  |  | 82                      |  |  |            |      |  |  |  | 624     | 
|Customer accounts receivable and related receivables |  |                                                            | 183     |  |                                                     |  |        |                         |  |  | 183                     |  |  |            |      |  |  |  | 183     | 
|Cash and cash equivalents                            |  |                                                            | 39,403  |  |                                                     |  | 39,403  |                         |  |  |                        |  |  |            |      |  |  |  | 39,403  | 
|                                                     |  |                                                            |         |  |                                                     |  |         |                         |  |  |                         |  |  |            |       |  |  |  |         | 
|Total financial assets                               |  |                                                            | 40,209  |  |                                                     |  | 39,944  |                         |  |  | 265                     |  |  |            |      |  |  |  | 40,209  | 
|                                                     |  |                                                            |         |  |                                                     |  |         |                         |  |  |                         |  |  |            |       |  |  |  |         | 
|Financial liabilities                                |  |                                                            |         |  |                                                     |  |         |                         |  |  |                         |  |  |            |       |  |  |  |         | 
|Conditional advances (non-current portion)           |  |                                                            | 1,317   |  |                                                     |  |        |                         |  |  |                        |  |  |            | 1,317 |  |  |  | 1,317   | 
|Conditional advances (current portion)               |  |                                                            | 126     |  |                                                     |  |        |                         |  |  |                        |  |  |            | 126   |  |  |  | 126     | 
|Supplier accounts payable and related payables       |  |                                                            | 4,108   |  |                                                     |  |        |                         |  |  |                        |  |  |            | 4,108 |  |  |  | 4,108   | 
|                                                     |  |                                                            |         |  |                                                     |  |         |                         |  |  |                         |  |  |            |       |  |  |  |         | 
|Total financial liabilities                          |  |                                                            | 5,551   |  |                                                     |  |        |                         |  |  |                        |  |  |            | 5,551 |  |  |  | 5,551   | 
|                                                     |  |                                                            |         |  |                                                     |  |         |                         |  |  |                         |  |  |            |       |  |  |  |         | 
|                                                     |  |                                                            |         |  |                                                    
|2014                                                 |  | Book valuein theConsolidatedStatements ofFinancialPosition |         |  | Fair valuethroughConsolidatedStatements of(Loss)(3) |  |         | Loans andreceivables(1) |  |  | Debt atamortizedcost(2) |  |  | Fair Value |      
|                                                     |  | (Amounts in thousands of Euros)                            |        
|Financial assets                                     |  |                                                            |         |  |                                                     |  |         |                         |  |  |                         |  |  |            |       |  |  |  |         | 
|Long-term financial assets                           |  |                                                            | 1,596   |  |                                                     |  | 1,496   |                         |  |  | 100                     |  |  |            |      |  |  |  | 1,596   | 
|Customer accounts receivable and related receivables |  |                                                            | 136     |  |                                                     |  |        |                         |  |  | 136                     |  |  |            |      |  |  |  | 136     | 
|Other current financial assets                       |  |                                                            | 241     |  |                                                     |  |        |                         |  |  | 241                     |  |  |            |      |  |  |  | 241     | 
|Cash and cash equivalents                            |  |                                                            | 114,583 |  |                                                     |  | 114,583 |                         |  |  |                        |  |  |            |      |  |  |  | 114,583 | 
|                                                     |  |                                                            |         |  |                                                     |  |         |                         |  |  |                         |  |  |            |       |  |  |  |         | 
|Total financial assets                               |  |                                                            | 116,554 |  |                                                     |  | 116,079 |                         |  |  | 477                     |  |  |            |      |  |  |  | 116,554 | 
|                                                     |  |                                                            |         |  |                                                     |  |         |                         |  |  |                         |  |  |            |       |  |  |  |         | 
|Financial liabilities                                |  |                                                            |         |  |                                                     |  |         |                         |  |  |                         |  |  |            |       |  |  |  |         | 
|Long-term conditional advances                       |  |                                                            | 3,855   |  |                                                     |  |        |                         |  |  |                        |  |  |            | 3,855 |  |  |  | 3,855   | 
|Long term financial rent debt                        |  |                                                            | 33      |  |                                                     |  |        |                         |  |  |                         |  |  |            | 33    |  |  |  | 33      | 
|Short-term conditional advances                      |  |                                                            | 192     |  |                                                     |  |        |                         |  |  |                        |  |  |            | 192   |  |  |  | 192     | 
|Short term financial rent debt                       |  |                                                            | 21      |  |                                                     |  |        |                         |  |  |                         |  |  |            | 21    |  |  |  | 21      | 
|Accounts payable and other liabilities               |  |                                                            | 5,311   |  |                                                     |  |        |                         |  |  |                        |  |  |            | 5,311 |  |  |  | 5,311   | 
|                                                     |  |                                                            |         |  |                                                     |  |         |                         |  |  |                         |  |  |            |       |  |  |  |         | 
|Total financial liabilities                          |  |                                                            | 9,412   |  |                                                     |  |        |                         |  |  |                        |  |  |            | 9,412 |  |  |  | 9,412   | 
|                                                     |  |                                                            |         |  |                                                     |  |         |                         |  |  |                         |  |  |            |       |  |  |  |         | 



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##### Table of Contents

|                                                     |  |                                                            |         |  |                                                     |  |         |                         |  |  |                         |  |  |            |        |  |  |  |         | 
|---------------------------------------------------- |  | ---------------------------------------------------------- | ------- |  | --------------------------------------------------- |  | ------- | ----------------------- |  |  | ----------------------- |  |  | ---------- | ------ |  |  |  | ------- | 
|2015                                                 |  | Book valuein theConsolidatedStatements ofFinancialPosition |         |  | Fair valuethroughConsolidatedStatements of(Loss)(3) |  |         | Loans andreceivables(1) |  |  | Debt atamortizedcost(2) |  |  | Fair Value |       
|                                                     |  | (Amounts in thousands of Euros)                            |        
|Financial assets                                     |  |                                                            |         |  |                                                     |  |         |                         |  |  |                         |  |  |            |        |  |  |  |         | 
|Long-term financial assets                           |  |                                                            | 2,711   |  |                                                     |  | 1,365   |                         |  |  | 1,346                   |  |  |            |       |  |  |  | 2,711   | 
|Customer accounts receivable and related receivables |  |                                                            |        |  |                                                     |  |        |                         |  |  |                        |  |  |            |       |  |  |  |        | 
|Other current financial assets                       |  |                                                            | 333     |  |                                                     |  |        |                         |  |  | 333                     |  |  |            |       |  |  |  | 333     | 
|Cash and cash equivalents                            |  |                                                            | 323,381 |  |                                                     |  | 323,381 |                         |  |  |                        |  |  |            | _      |  |  |  | 323,381 | 
|                                                     |  |                                                            |         |  |                                                     |  |         |                         |  |  |                         |  |  |            |        |  |  |  |         | 
|Total financial assets                               |  |                                                            | 326,425 |  |                                                     |  | 324,746 |                         |  |  | 1,679                   |  |  |            | _      |  |  |  | 326,425 | 
|                                                     |  |                                                            |         |  |                                                     |  |         |                         |  |  |                         |  |  |            |        |  |  |  |         | 
|Financial liabilities                                |  |                                                            |         |  |                                                     |  |         |                         |  |  |                         |  |  |            |        |  |  |  |         | 
|Long-term conditional advances                       |  |                                                            | 4,681   |  |                                                     |  |        |                         |  |  |                        |  |  |            | 4,681  |  |  |  | 4,681   | 
|Long term financial rent debt                        |  |                                                            | 12      |  |                                                     |  |        |                         |  |  |                         |  |  |            | 12     |  |  |  | 12      | 
|Short-term conditional advances                      |  |                                                            | 128     |  |                                                     |  |        |                         |  |  |                        |  |  |            | 128    |  |  |  | 128     | 
|Short term financial rent debt                       |  |                                                            | 21      |  |                                                     |  |        |                         |  |  |                         |  |  |            | 21     |  |  |  | 21      | 
|Accounts payable and other liabilities               |  |                                                            | 15,872  |  |                                                     |  |        |                         |  |  |                        |  |  |            | 15,872 |  |  |  | 15,872  | 
|                                                     |  |                                                            |         |  |                                                     |  |         |                         |  |  |                         |  |  |            |        |  |  |  |         | 
|Total financial liabilities                          |  |                                                            | 20,714  |  |                                                     |  |        |                         |  |  |                        |  |  |            | 20,714 |  |  |  | 20,714  | 
|                                                     |  |                                                            |         |  |                                                     |  |         |                         |  |  |                         |  |  |            |        |  |  |  |         | 



|(1) | The fair value of loans and receivables corresponds to the value reported in the Consolidated Statements of Financial Position (value at the transaction date and then tested for impairment on each reporting
date).
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | The book amount of financial liabilities measured at amortized cost was deemed to be a reasonable estimation of fair value.
|--- | ---------------------------------------------------------------------------------------------------------------------------

|(3) | The fair value of financial assets held for trading is determined based on Level 1 fair value measurements and corresponds to the market value of the assets.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------

Note 15: Operating Income

The operating income is broken
down in the following manner:



|                    |  |                                 |       |  |      |  |       |      |  |  |       | 
|------------------- |  | ------------------------------- | ----- |  | ---- |  | ----- | ---- |  |  | ----- | 
|                    |  | December 31                     |      
|                    |  | 2013                            |       |  | 2014 |  |       | 2015 | 
|                    |  | (Amounts in thousands of Euros) |      
|Revenues            |  |                                 | 182   |  |      |  | 211   |      |  |  | 202   | 
|Research Tax Credit |  |                                 | 3     |  |      |  | 4,340 |      |  |  | 5,685 | 
|Subsidies           |  |                                 | 332   |  |      |  | 211   |      |  |  | 279   | 
|Total               |  |                                 | 3,826 |  |      |  | 4,762 |      |  |  | 6,166 | 

The revenues of the Company are composed of the sales of
Diallertest® products whose commercialization ended on September 1st, 2015.

Note 16: Operating Expenses

The research and development
expenses are broken down as follows:



|                                                            |  |                                 |        |  |      |  |        |      |  |  |        | 
|----------------------------------------------------------- |  | ------------------------------- | ------ |  | ---- |  | ------ | ---- |  |  | ------ | 
|                                                            |  | December 31                     |       
|R&D expenses                                                |  | 2013                            |        |  | 2014 |  |        | 2015 | 
|                                                            |  | (Amounts in thousands of Euros) |       
|Personnel expenses                                          |  |                                 | 7,195  |  |      |  | 7,703  |      |  |  | 13,268 | 
|Sub-contracting, collaboration and consultants              |  |                                 | 8,212  |  |      |  | 10,703 |      |  |  | 15,325 | 
|Research supplies                                           |  |                                 | 555    |  |      |  | 937    |      |  |  | 911    | 
|Purchases                                                   |  |                                 |       |  |      |  | 249    |      |  |  | 795    | 
|Real estate property rental                                 |  |                                 | 263    |  |      |  | 255    |      |  |  | 1,094  | 
|Conferences and travel expenses                             |  |                                 | 466    |  |      |  | 665    |      |  |  | 1,233  | 
|Allowances for provisions and amortization and depreciation |  |                                 | 290    |  |      |  | 466    |      |  |  | 1,000  | 
|Others                                                      |  |                                 | 385    |  |      |  | 165    |      |  |  | 608    | 
|Total R&D expenses                                          |  |                                 | 17,367 |  |      |  | 21,143 |      |  |  | 34,234 | 



F-32



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##### Table of Contents

The sales and marketing expenses are broken down as follows:



|                                  |  |                                 |    |  |      |  |     | 
|--------------------------------- |  | ------------------------------- | -- |  | ---- |  | --- | 
|                                  |  | December 31                     |   
|S&M expenses                      |  | 2014                            |    |  | 2015 | 
|                                  |  | (Amounts in thousands of Euros) |   
|Personnel expenses                |  |                                 |    |  |      |  | 133 | 
|Fees                              |  |                                 |    |  |      |  | 339 | 
|Communication and travel expenses |  |                                 | 13 |  |      |  | 20  | 
|Total S&M expenses                |  |                                 | 13 |  |      |  | 491 | 

By nature, the breakdown of general and administrative expenses is as follows:



|                                                            |  |                                 |       |  |      |  |       |      |  |  |        | 
|----------------------------------------------------------- |  | ------------------------------- | ----- |  | ---- |  | ----- | ---- |  |  | ------ | 
|                                                            |  | December 31                     |      
|G&A Expenses                                                |  | 2013                            |       |  | 2014 |  |       | 2015 | 
|                                                            |  | (Amounts in thousands of Euros) |      
|Personnel expenses                                          |  |                                 | 4,699 |  |      |  | 5,109 |      |  |  | 8,768  | 
|Fees                                                        |  |                                 | 587   |  |      |  | 1,166 |      |  |  | 4,234  | 
|Real estate property rental                                 |  |                                 | 111   |  |      |  | 204   |      |  |  | 305    | 
|Insurance policies                                          |  |                                 | 105   |  |      |  | 230   |      |  |  | 1,239  | 
|Communication and travel expenses                           |  |                                 | 451   |  |      |  | 633   |      |  |  | 1,010  | 
|Maintenance                                                 |  |                                 |      |  |      |  | 140   |      |  |  | 356    | 
|Postal and telecommunications expenses                      |  |                                 | 65    |  |      |  | 76    |      |  |  | 36     | 
|Administrative supplies and rentals of personal property    |  |                                 | 97    |  |      |  | 104   |      |  |  | 162    | 
|Allowances for provisions and amortization and depreciation |  |                                 |       |  |      |  | 111   |      |  |  | 74     | 
|Others                                                      |  |                                 | 195   |  |      |  | 332   |      |  |  | 676    | 
|Total G&A expenses                                          |  |                                 | 6,310 |  |      |  | 8,105 |      |  |  | 16,859 | 

Personnel Expenses

The Company employed 91 people as at December 31, 2015, in comparison with 56 as at December 31, 2014 and 44 as at December 31, 2013.

The personnel expenses are broken down as follows:



|                                 |  |                                 |        |  |      |  |        |      |  |  |        | 
|-------------------------------- |  | ------------------------------- | ------ |  | ---- |  | ------ | ---- |  |  | ------ | 
|                                 |  | December 31                     |       
|                                 |  | 2013                            |        |  | 2014 |  |        | 2015 | 
|                                 |  | (Amounts in thousands of Euros) |       
|Wages and salaries               |  |                                 | 3,608  |  |      |  | 4,883  |      |  |  | 7,243  | 
|Social security contributions    |  |                                 | 3,148  |  |      |  | 3,203  |      |  |  | 4,391  | 
|Expenses for pension commitments |  |                                 | 90     |  |      |  | 87     |      |  |  | 116    | 
|Share-based payments             |  |                                 | 5,048  |  |      |  | 4,639  |      |  |  | 10,419 | 
|Total                            |  |                                 | 11,894 |  |      |  | 12,812 |      |  |  | 22,168 | 



F-33



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##### Table of Contents

The increase in personnel charges is partly due to, on the one hand, the increased number of employees of the
Company from one year to the next, and in part to the increase charge to share-based payments linked to the global plan put in place during the second semester of 2015 (see Note 17).

Note 17: Share-Based Payments

The Board of Directors has
been authorized by the general meeting of the shareholders to grant employee warrants (Bons de Souscription de Parts de Créateur dEntreprise or BSPCE) and (Bons de Souscription dActions or BSA), Free
shares and to implement share options plans as follows:



| |  |  | With the authorization of the General Meeting of Shareholders on January 21, 2009, the board of Directors issued 2,296 BCEX (BCEX);
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------



| |  |  | With the authorization of the General Meeting of Shareholders on June 14, 2007, December 16, 2010 and December 9, 2011, the board of Directors issued 194,552 BSA (BSA).
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | With the authorization of the General Meeting of Shareholders on January 21, 2009, the board of Directors issued 10,716 BSA (BSA2);
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------



| |  |  | With the authorization of the General Meeting of Shareholders on January 21, 2009, the board of Directors issued 5,358 BCE (BCE4);
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------



| |  |  | With the authorization of the General Meeting of Shareholders on December 16, 2010, the board of Directors issued 19,377 BSA (BSA2010);
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------



| |  |  | With the authorization of the General Meeting of Shareholders on January 21, 2009, the board of Directors issued 2,131 BSA (BSAX);
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------



| |  |  | With the authorization of the General Meeting of Shareholders on December 16, 2010, the board of Directors issued 34,039 BSPCE (BSPCE2010);
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | With the authorization of the General Meeting of Shareholders on December 9, 2011, the board of Directors issued 518,000 options (OPTIONS 2013);
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | With the authorization of the General Meeting of Shareholders on December 9, 2011, the board of Directors issued 1,340,737 Free shares (Free shares).
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | With the authorization of the General Meeting of Shareholders on December 9, 2011, the board of Directors issued 75,000 options (Stock-Options 2014).
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | With the authorization of the General Meeting of Shareholders on December 9, 2011, the board of Directors issued 10,000 BSA (BSA 2014).
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------



| |  |  | With the authorization of the General Meeting of Shareholders on December 9, 2011, the board of Directors issued 186,000 Free shares (Free shares 2014).
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | With the authorization of the General Meeting of Shareholders on December 9, 2011, the board of Directors issued 10,000 BSA (BSA 2015).
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------



| |  |  | With the authorization of the General Meeting of Shareholders on December 9, 2011, the board of Directors issued 120,000 options (Stock-Options 2015).
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | With the authorization of the General Meeting of Shareholders on September 21 2015, the board of Directors issued 750,500 Free shares (Free shares 2015).
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | With the authorization of the General Meeting of Shareholders on September 21 2015, the board of Directors issued 15,000 BSA (BSA 2015).
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | With the authorization of the General Meeting of Shareholders on September 21 2015, the board of Directors issued 195,000 options (Stock-Options 2015).
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------

17.1 BCEX

By a decision by the Board of Directors
meeting held on November 22, 2011, the BCEX warrants became exercisable beginning on the date of the first quotation of the shares of the Company on the Euronext regulated market in Paris.



F-34



---

##### Table of Contents

Details of BCEX



|                                   |  |            |                   |   |            |  |            |            |  |  |            |   |  |  |            |  
|---------------------------------- |  | ---------- | ----------------- | - | ---------- |  | ---------- | ---------- |  |  | ---------- | - |  |  | ---------- | -
|Date of grant (Board of Directors) |  | 01/21/2009 |                   |   | 01/21/2009 |  |            | 01/21/2009 |  |  | 01/21/2009 |  
|Vesting period (years)             |  |            | 1                 |   |            |  | 2          |            |  |  | 3          |   |  |  | 4          |  
|Plan expiration date               |  |            | 01/20/2019        |   |            |  | 01/20/2019 |            |  |  | 01/20/2019 |   |  |  | 01/20/2019 |  
|Number of BCEX granted             |  |            | 574               |   |            |  | 574        |            |  |  | 574        |   |  |  | 574        |  
|Share entitlement per BCEX(1)      |  |            | 15                |   |            |  | 15         |            |  |  | 15         |   |  |  | 15         |  
|Exercise price                     |  |            | 70                |   |            |  | 70         |            |  |  | 70         |   |  |  | 70         |  
|Valuation method used              |  |            | Black and Scholes |  
|Grant date share fair value        |  |            | 70                |   |            |  | 70         |            |  |  | 70         |   |  |  | 70         |  
|Expected volatility                |  |            | 40                | % |            |  | 40         | %          |  |  | 40         | % |  |  | 40         | %
|Average life of BCEX               |  |            | 5.5               |   |            |  | 6.0        |            |  |  | 6.5        |   |  |  | 7.0        |  
|Discount rate(2)                   |  |            | 2.71              | % |            |  | 2.98       | %          |  |  | 2.98       | % |  |  | 3.11       | %
|Expected dividends                 |  |            | 0                 | % |            |  | 0          | %          |  |  | 0          | % |  |  | 0          | %
|Performance conditions             |  |            | NA                |   |            |  | NA         |            |  |  | NA         |   |  |  | NA         |  
|Fair value per BCEX                |  |            | 28.64             |   |            |  | 30.25      |            |  |  | 31.46      |   |  |  | 31.87      |  



|(1) | The number of shares takes into account an exercise parity adjusted by the division by 15 of the nominal value of the shares decided by the general meeting on December 9, 2011; each BCEX warrant now gives the right
to subscribe to 15 new shares instead of 1 new share. For the same reason, the exercise price of each BCE plan was adjusted as a result and is thus equal to 1/15th of the price initially determined by the general meeting that authorized each of the
plans.
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | Based on French government bonds (GFRN) with a maturity corresponding to the maturity of BCEX.
|--- | ----------------------------------------------------------------------------------------------

Change
in Number of BCEX Outstanding



|                               |  |             |       |  |      |  |       |      |  |  |   | 
|------------------------------ |  | ----------- | ----- |  | ---- |  | ----- | ---- |  |  | - | 
|                               |  | December 31 |      
|Number of BCEX                 |  | 2013        |       |  | 2014 |  |       | 2015 | 
|Balance at beginning of period |  |             | 2,296 |  |      |  | 2,296 |      |  |  |  | 
|Granted during the period      |  |             |      |  |      |  |      |      |  |  |  | 
|Forfeited during the period    |  |             |      |  |      |  |      |      |  |  |  | 
|Exercised during the period    |  |             |      |  |      |  | 2,296 |      |  |  |  | 
|Expired during the period      |  |             |      |  |      |  |      |      |  |  |  | 
|Balance at end of period       |  |             | 2,296 |  |      |  |      |      |  |  |  | 

Breakdown of the Closing Balance



|                                |  |             |       |  |             |  |       |             |  |  |             |  |  |             |   |  |             |  |   |  |  |  |   | 
|------------------------------- |  | ----------- | ----- |  | ----------- |  | ----- | ----------- |  |  | ----------- |  |  | ----------- | - |  | ----------- |  | - |  |  |  | - | 
|                                |  | December 31 |      
|                                |  | 2013        |       |  | 2014        |  |       | 2015        | 
|Number of BCEX                  |  | Outstanding |       |  | Exercisable |  |       | Outstanding |  |  | Exercisable |  |  | Outstanding |   |  | Exercisable | 
|BCEX with exercise price of 70 |  |             | 2,296 |  |             |  | 2,296 |             |  |  |            |  |  |             |  |  |             |  |  |  |  |  |  | 
|Total                           |  |             | 2,296 |  |             |  | 2,296 |             |  |  |            |  |  |             |  |  |             |  |  |  |  |  |  | 

17.2 BSA

Date of
Grant 12/07/2007

The BSA may be exercised by the beneficiary on the basis of the following vesting schedule:



| |  |  | up to one fourth (1/4) of the BSA on the first anniversary of the date of grant;
| | - |  | --------------------------------------------------------------------------------



| |  |  | up to one fourth (1/4) of the BSA on the second anniversary of the date of grant;
| | - |  | ---------------------------------------------------------------------------------



| |  |  | up to one fourth (1/4) of the BSA on the third anniversary of the date of grant;
| | - |  | --------------------------------------------------------------------------------



| |  |  | up to one fourth (1/4) of the BSA on the fourth anniversary of the date of grant; and
| | - |  | -------------------------------------------------------------------------------------



| |  |  | at the latest within eight (8) years from the date of grant.
| | - |  | ------------------------------------------------------------



F-35



---

##### Table of Contents

Date of Grant 01/17/2012

The BSA may be exercised by the beneficiary on the basis of the following vesting schedule:



| |  |  | up to 89,835 BSA (all the BSA) on January 17, 2016; and
| | - |  | -------------------------------------------------------



| |  |  | at the latest within ten (10) years from the date of grant.
| | - |  | -----------------------------------------------------------

Date of Grant 09/25/2012

The BSA may be exercised by the beneficiary on the basis of the following vesting schedule:



| |  |  | up to 30,000 BSA (all the BSA) on the date of grant; and
| | - |  | --------------------------------------------------------



| |  |  | at the latest within ten (10) years from the date of grant.
| | - |  | -----------------------------------------------------------

Date of Grant 07/25/2013

The BSA may be exercised by the beneficiary on the basis of the following vesting schedule:



| |  |  | up to 73,000 BSA (all the BSA) on the date of grant; and
| | - |  | --------------------------------------------------------



| |  |  | at the latest within ten (10) years from the date of grant.
| | - |  | -----------------------------------------------------------

Date of Grant 06/03/2014

The BSA may be exercised by the beneficiary on the basis of the following vesting schedule:



| |  |  | up to 10,000 BSA (all the BSA) on the date of grant; and
| | - |  | --------------------------------------------------------



| |  |  | at the latest within ten (10) years from the date of grant.
| | - |  | -----------------------------------------------------------

Date of Grant 24/03/2015

The BSA may be exercised by the beneficiary on the basis of the following vesting schedule:



| |  |  | up to 10,000 BSA (all the BSA) on the date of grant; and
| | - |  | --------------------------------------------------------



| |  |  | at the latest within ten (10) years from the date of grant.
| | - |  | -----------------------------------------------------------

Date of Grant 19/11/2015

The BSA may be exercised by the beneficiary on the basis of the following vesting schedule:



| |  |  | up to 15,000 BSA (all the BSA) on the date of grant; and
| | - |  | --------------------------------------------------------



| |  |  | at the latest within ten (10) years from the date of grant.
| | - |  | -----------------------------------------------------------

Details of BSA



|                                   |  |            |                   |   |            |  |            |            |  |  |            |   |  |            |            |   |            |  |            |            |  |  |            |   |  |  |            |   |  |  |            |  
|---------------------------------- |  | ---------- | ----------------- | - | ---------- |  | ---------- | ---------- |  |  | ---------- | - |  | ---------- | ---------- | - | ---------- |  | ---------- | ---------- |  |  | ---------- | - |  |  | ---------- | - |  |  | ---------- | -
|Date of grant (Board of Directors) |  | 12/07/2007 |                   |   | 12/07/2007 |  |            | 12/07/2007 |  |  | 12/07/2007 |   |  | 01/17/2012 |            |   | 01/17/2012 |  |            | 01/17/2012 |  |  | 01/17/2012 |  
|Vesting period (years)             |  |            | 1                 |   |            |  | 2          |            |  |  | 3          |   |  |            | 4          |   |            |  | 1          |            |  |  | 2          |   |  |  | 3          |   |  |  | 4          |  
|Plan expiration date               |  |            | 12/06/2015        |   |            |  | 12/06/2015 |            |  |  | 12/06/2015 |   |  |            | 12/06/2015 |   |            |  | 01/17/2022 |            |  |  | 01/17/2022 |   |  |  | 01/17/2022 |   |  |  | 01/17/2022 |  
|Number of BSA granted              |  |            | 431               |   |            |  | 431        |            |  |  | 428        |   |  |            | 427        |   |            |  | 22,459     |            |  |  | 22,459     |   |  |  | 22,459     |   |  |  | 22,458     |  
|Share entitlement per BSA(1)       |  |            | 15                |   |            |  | 15         |            |  |  | 15         |   |  |            | 15         |   |            |  | 1          |            |  |  | 1          |   |  |  | 1          |   |  |  | 1          |  
|Exercise price                     |  |            | 65                |   |            |  | 65         |            |  |  | 65         |   |  |            | 65         |   |            |  | 5.13       |            |  |  | 5.13       |   |  |  | 5.13       |   |  |  | 5.13       |  
|Valuation method used              |  |            | Black and Scholes |  
|Grant date share fair value        |  |            | 65                |   |            |  | 65         |            |  |  | 65         |   |  |            | 65         |   |            |  | 5.13       |            |  |  | 5.13       |   |  |  | 5.13       |   |  |  | 5.13       |  
|Expected volatility                |  |            | 40                | % |            |  | 40         | %          |  |  | 40         | % |  |            | 40         | % |            |  | 40         | %          |  |  | 40         | % |  |  | 40         | % |  |  | 40         | %
|Average life of BSA                |  |            | 4.5               |   |            |  | 5.0        |            |  |  | 5.5        |   |  |            | 6.0        |   |            |  | 5.5        |            |  |  | 6.0        |   |  |  | 6.5        |   |  |  | 7.0        |  
|Discount rate(2)                   |  |            | 4.06              | % |            |  | 4.09       | %          |  |  | 4.09       | % |  |            | 4.10       | % |            |  | 2.33       | %          |  |  | 2.33       | % |  |  | 2.61       | % |  |  | 2.61       | %
|Expected dividends                 |  |            | 0                 | % |            |  | 0          | %          |  |  | 0          | % |  |            | 0          | % |            |  | 0          | %          |  |  | 0          | % |  |  | 0          | % |  |  | 0          | %
|Performance conditions             |  |            | NA                |   |            |  | NA         |            |  |  | NA         |   |  |            | NA         |   |            |  | NA         |            |  |  | NA         |   |  |  | NA         |   |  |  | NA         |  
|Fair value per BSA                 |  |            | 22.18             |   |            |  | 23.62      |            |  |  | 24.95      |   |  |            | 26.22      |   |            |  | 2.05       |            |  |  | 2.14       |   |  |  | 2.26       |   |  |  | 2.34       |  
|                                   |  |            |                   |   |            |  |            |            |  |  |            |   |  |            |            |   |            |  |            |            |  |  |            |   |  |  |            |   |  |  |            |  



|(1) | The number of shares takes into account an exercise parity adjusted by the division by 15 of the nominal value of the shares decided by the general meeting on December 9, 2011; each BSA warrant now gives the right
to subscribe to 15 new shares instead of 1 new share. For the same reason, the exercise price of each BSA plan was adjusted as a result and is thus equal to 1/15th of the price initially determined by the general meeting that authorized each of the
plans.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



F-36



---

##### Table of Contents

|(2) | Based on French government bonds (GFRN) with a maturity corresponding to the maturity of BSA.
|--- | ---------------------------------------------------------------------------------------------



|                                   |  |            |                   |   |            |  |            |            |  |  |            |   |  |            |            |   |            |  |            |   |  |  |            |  
|---------------------------------- |  | ---------- | ----------------- | - | ---------- |  | ---------- | ---------- |  |  | ---------- | - |  | ---------- | ---------- | - | ---------- |  | ---------- | - |  |  | ---------- | -
|Date of grant (Board of Directors) |  | 09/25/2012 |                   |   | 09/25/2012 |  |            | 09/25/2012 |  |  | 09/25/2012 |   |  | 07/25/2013 |            |   | 06/03/2014 | 
|Vesting period (years)             |  |            | 1                 |   |            |  | 2          |            |  |  | 3          |   |  |            | 4          |   |            |  | 0          |   |  |  | 0          |  
|Plan expiration date               |  |            | 09/25/2022        |   |            |  | 09/25/2022 |            |  |  | 09/25/2022 |   |  |            | 09/25/2022 |   |            |  | 07/25/2023 |   |  |  | 06/03/2024 |  
|Number of BSA granted              |  |            | 7,500             |   |            |  | 7,500      |            |  |  | 7,500      |   |  |            | 7,500      |   |            |  | 73,000     |   |  |  | 10,000     |  
|Share entitlement per BSA(1)       |  |            | 1                 |   |            |  | 1          |            |  |  | 1          |   |  |            | 1          |   |            |  | 1          |   |  |  | 1          |  
|Exercise price                     |  |            | 8.59              |   |            |  | 8.59       |            |  |  | 8.59       |   |  |            | 8.59       |   |            |  | 8.1        |   |  |  | 18.79      |  
|Valuation method used              |  |            | Black and Scholes |  
|Grant date share fair value        |  |            | 8.4               |   |            |  | 8.4        |            |  |  | 8.4        |   |  |            | 8.4        |   |            |  | 8.15       |   |  |  | 19.01      |  
|Expected volatility                |  |            | 40                | % |            |  | 40         | %          |  |  | 40         | % |  |            | 40         | % |            |  | 40         | % |  |  | 40         | %
|Average life of BSA                |  |            | 5.5               |   |            |  | 6.0        |            |  |  | 6.5        |   |  |            | 7.0        |   |            |  | 5.0        |   |  |  | 5.0        |  
|Discount rate(2)                   |  |            | 1.21              | % |            |  | 1.21       | %          |  |  | 1.53       | % |  |            | 1.53       | % |            |  | 1.16       | % |  |  | 0.71       | %
|Expected dividends                 |  |            | 0                 | % |            |  | 0          | %          |  |  | 0          | % |  |            | 0          | % |            |  | 0          | % |  |  | 0          | %
|Performance conditions             |  |            | NA                |   |            |  | NA         |            |  |  | NA         |   |  |            | NA         |   |            |  | NA         |   |  |  | NA         |  
|Fair value per BSA                 |  |            | 2.29              |   |            |  | 2.43       |            |  |  | 2.61       |   |  |            | 2.74       |   |            |  | 2.18       |   |  |  | 4.98       |  



|(1) | The number of shares takes into account an exercise parity adjusted by the division by 15 of the nominal value of the shares decided by the general meeting on December 9, 2011; each BSA warrant now gives the right
to subscribe to 15 new shares instead of 1 new share. For the same reason, the exercise price of each BSA plan was adjusted as a result and is thus equal to 1/15th of the price initially determined by the general meeting that authorized each of the
plans.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | Based on French government bonds (GFRN) with a maturity corresponding to the maturity of BSA.
|--- | ---------------------------------------------------------------------------------------------



|                                   |  |            |                   |   |            |  |            |  
|---------------------------------- |  | ---------- | ----------------- | - | ---------- |  | ---------- | -
|Date of grant (Board of Directors) |  | 03/24/2015 |                   |   | 11/19/2015 | 
|Vesting period (years)             |  |            |                  |   |            |  |           |  
|Plan expiration date               |  |            | 03/24/2025        |   |            |  | 11/19/2025 |  
|Number of BSA granted              |  |            | 10,000            |   |            |  | 15,000     |  
|Share entitlement per BSA(1)       |  |            | 1                 |   |            |  | 1          |  
|Exercise price                     |  |            | 43.00             |   |            |  | 66.06      |  
|Valuation method used              |  |            | Black and Scholes |  
|Grant date share fair value        |  |            | 43.00             |   |            |  | 66.06      |  
|Expected volatility                |  |            | 36                | % |            |  | 50.91      | %
|Average life of BSA                |  |            | 5.0               |   |            |  | 5.0        |  
|Discount rate(2)                   |  |            | 0.68              | % |            |  | 0.81       | %
|Expected dividends                 |  |            | 0                 | % |            |  | 0          | %
|Performance conditions             |  |            | N/A               |   |            |  | N/A        |  
|Fair value per BSA                 |  |            | 9.90              |   |            |  | 22.60      |  

Change in Number of BSA Outstanding



|                               |  |             |         |  |      |  |         |      |  |  |         | 
|------------------------------ |  | ----------- | ------- |  | ---- |  | ------- | ---- |  |  | ------- | 
|                               |  | December 31 |        
|Number of BSA                  |  | 2013        |         |  | 2014 |  |         | 2015 | 
|Balance at beginning of period |  |             | 120,980 |  |      |  | 193,980 |      |  |  | 196,480 | 
|Granted during the period      |  |             | 73,000  |  |      |  | 10,000  |      |  |  | 25,000  | 
|Forfeited during the period    |  |             |        |  |      |  |        |      |  |  |        | 
|Exercised during the period    |  |             |        |  |      |  | 7,500   |      |  |  | 77,786  | 
|Expired during the period      |  |             |        |  |      |  |        |      |  |  |        | 
|Balance at end of period       |  |             | 193,980 |  |      |  | 196,480 |      |  |  | 143,694 | 



F-37



---

##### Table of Contents

Breakdown of the Closing Balance



|                                      |  |             |         |  |             |  |         |             |  |  |             |  |  |             |         |  |             |  |         |  |  |  |        | 
|------------------------------------- |  | ----------- | ------- |  | ----------- |  | ------- | ----------- |  |  | ----------- |  |  | ----------- | ------- |  | ----------- |  | ------- |  |  |  | ------ | 
|                                      |  | December 31 |        
|                                      |  | 2013        |         |  | 2014        |  |         | 2015        | 
|Number of BSA                         |  | Outstanding |         |  | Exercisable |  |         | Outstanding |  |  | Exercisable |  |  | Outstanding |         |  | Exercisable | 
|BSA2010 with exercise price of 65    |  |             | 1,145   |  |             |  | 1,145   |             |  |  | 1,145       |  |  |             | 1,145   |  |             |  | 859     |  |  |  | 859    | 
|BSA2010 with exercise price of 5.13  |  |             | 89,835  |  |             |  |        |             |  |  | 89,835      |  |  |             |        |  |             |  | 89,835  |  |  |  |       | 
|BSA2010 with exercise price of 8.59  |  |             | 30,000  |  |             |  | 30,000  |             |  |  | 25,000      |  |  |             | 25,000  |  |             |  | 10,000  |  |  |  | 10,000 | 
|BSA2010 with exercise price of 8.1   |  |             | 73,000  |  |             |  | 73,000  |             |  |  | 70,500      |  |  |             | 70,500  |  |             |  | 13,000  |  |  |  | 13,000 | 
|BSA2010 with exercise price of 18.79 |  |             |        |  |             |  |        |             |  |  | 10,000      |  |  |             | 10,000  |  |             |  | 5,000   |  |  |  | 5,000  | 
|BSA with exercise price of 43.00     |  |             |        |  |             |  |        |             |  |  |             |  |  |             |         |  |             |  | 10,000  |  |  |  | 10,000 | 
|BSA with exercise price of 66.06     |  |             |        |  |             |  |        |             |  |  |             |  |  |             |         |  |             |  | 15,000  |  |  |  | 15,000 | 
|Total                                 |  |             | 193,980 |  |             |  | 104,145 |             |  |  | 196,480     |  |  |             | 106,645 |  |             |  | 143,694 |  |  |  | 53,859 | 

17.3 BSA 2

The BSA may
be exercised by the beneficiary on the basis of the following vesting schedule:



| |  |  | up to 4,822 BSA on the date of grant;
| | - |  | -------------------------------------



| |  |  | up to 2,680 BSA on the first anniversary of the date of grant;
| | - |  | --------------------------------------------------------------



| |  |  | up to 1,072 BSA on the second anniversary of the date of grant;
| | - |  | ---------------------------------------------------------------



| |  |  | up to 1,072 BSA on the third anniversary of the date of grant;
| | - |  | --------------------------------------------------------------



| |  |  | up to 1,070 BSA on the fourth anniversary of the date of grant; and
| | - |  | -------------------------------------------------------------------



| |  |  | at the latest within ten (10) years from the date of grant.
| | - |  | -----------------------------------------------------------

By a decision by the Board of Directors
meeting held on November 22, 2011, the BSA2 warrants became exercisable beginning on the date of the first quotation of the shares of the Company on the Euronext regulated market in Paris.

Details of BSA2



|                                   |  |            |                   |   |            |  |            |            |  |  |            |   |  |            |            |   |  |  |            |  
|---------------------------------- |  | ---------- | ----------------- | - | ---------- |  | ---------- | ---------- |  |  | ---------- | - |  | ---------- | ---------- | - |  |  | ---------- | -
|Date of grant (Board of Directors) |  | 01/21/2009 |                   |   | 01/21/2009 |  |            | 01/21/2009 |  |  | 01/21/2009 |   |  | 01/21/2009 |           
|Vesting period (years)             |  |            | 0                 |   |            |  | 1          |            |  |  | 2          |   |  |            | 3          |   |  |  | 4          |  
|Plan expiration date               |  |            | 01/20/2019        |   |            |  | 01/20/2019 |            |  |  | 01/20/2019 |   |  |            | 01/20/2019 |   |  |  | 01/20/2019 |  
|Number of BSA2 granted             |  |            | 4,822             |   |            |  | 2,680      |            |  |  | 1,072      |   |  |            | 1,072      |   |  |  | 1,070      |  
|Share entitlement per BSA2(1)      |  |            | 15                |   |            |  | 15         |            |  |  | 15         |   |  |            | 15         |   |  |  | 15         |  
|Exercise price                     |  |            | 65                |   |            |  | 65         |            |  |  | 65         |   |  |            | 65         |   |  |  | 65         |  
|Valuation method used              |  |            | Black and Scholes |  
|Grant date share fair value        |  |            | 70                |   |            |  | 70         |            |  |  | 70         |   |  |            | 70         |   |  |  | 70         |  
|Expected volatility                |  |            | 40                | % |            |  | 40         | %          |  |  | 40         | % |  |            | 40         | % |  |  | 40         | %
|Average life of BSA2               |  |            | 5.0               |   |            |  | 5.5        |            |  |  | 6.0        |   |  |            | 6.5        |   |  |  | 7.0        |  
|Discount rate(2)                   |  |            | 2.71              | % |            |  | 2.71       | %          |  |  | 2.98       | % |  |            | 2.98       | % |  |  | 3.11       | %
|Expected dividends                 |  |            | 0                 | % |            |  | 0          | %          |  |  | 0          | % |  |            | 0          | % |  |  | 0          | %
|Performance conditions             |  |            | NA                |   |            |  | NA         |            |  |  | NA         |   |  |            | NA         |   |  |  | NA         |  
|Fair value per BSA2                |  |            | 29.05             |   |            |  | 30.32      |            |  |  | 31.89      |   |  |            | 33.05      |   |  |  | 33.45      |  



|(1) | The number of shares takes into account an exercise parity adjusted by the division by 15 of the nominal value of the shares decided by the general meeting on December 9, 2011; each BSA2 warrant now gives the right
to subscribe to 15 new shares instead of 1 new share. For the same reason, the exercise price of each BSA2 plan was adjusted as a result and is thus equal to 1/15th of the price initially determined by the general meeting that authorized each of the
plans.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | Based on French government bonds (GFRN) with a maturity corresponding to the maturity of BSA2.
|--- | ----------------------------------------------------------------------------------------------



F-38



---

##### Table of Contents

Change in Number of BSA 2 Outstanding



|                               |  |             |        |  |      |  |        |      |  |  |       | 
|------------------------------ |  | ----------- | ------ |  | ---- |  | ------ | ---- |  |  | ----- | 
|                               |  | December 31 |       
|Number of BSA2                 |  | 2013        |        |  | 2014 |  |        | 2015 | 
|Balance at beginning of period |  |             | 10,716 |  |      |  | 10,716 |      |  |  | 8,049 | 
|Granted during the period      |  |             |       |  |      |  |       |      |  |  |      | 
|Forfeited during the period    |  |             |       |  |      |  |       |      |  |  |      | 
|Exercised during the period    |  |             |       |  |      |  | 2,667  |      |  |  | 8,049 | 
|Expired during the period      |  |             |       |  |      |  |       |      |  |  |      | 
|Balance at end of period       |  |             | 10,716 |  |      |  | 8,049  |      |  |  |      | 

Breakdown of the Closing Balance



|                                |  |             |        |  |             |  |        |             |  |  |             |  |  |             |       |  |             |  |   |  |  |  |   | 
|------------------------------- |  | ----------- | ------ |  | ----------- |  | ------ | ----------- |  |  | ----------- |  |  | ----------- | ----- |  | ----------- |  | - |  |  |  | - | 
|                                |  | December 31 |       
|                                |  | 2013        |        |  | 2014        |  |        | 2015        | 
|Number of BSA2                  |  | Outstanding |        |  | Exercisable |  |        | Outstanding |  |  | Exercisable |  |  | Outstanding |       |  | Exercisable | 
|BSA2 with exercise price of 65 |  |             | 10,716 |  |             |  | 10,716 |             |  |  | 8,049       |  |  |             | 8,049 |  |             |  |  |  |  |  |  | 
|Total                           |  |             | 10,716 |  |             |  | 10,716 |             |  |  | 8,049       |  |  |             | 8,049 |  |             |  |  |  |  |  |  | 

17.4 BCE 4

The BCE4 may
be exercised by the beneficiary on the basis of the following vesting schedule:



| |  |  | up to 2,411 BCE4 on the date of grant;
| | - |  | --------------------------------------



| |  |  | up to 1,340 BCE4 on the first anniversary of the date of grant;
| | - |  | ---------------------------------------------------------------



| |  |  | up to 536 BCE4 on the second anniversary of the date of grant;
| | - |  | --------------------------------------------------------------



| |  |  | up to 536 BCE4 on the third anniversary of the date of grant;
| | - |  | -------------------------------------------------------------



| |  |  | up to 535 BSA on the fourth anniversary of the date of grant; and
| | - |  | -----------------------------------------------------------------



| |  |  | at the latest within ten (10) years from the date of grant.
| | - |  | -----------------------------------------------------------

By a decision by the Board of Directors
meeting held on November 22, 2011, the BCE4 warrants became exercisable beginning on the date of the first quotation of the shares of the Company on the Euronext regulated market in Paris.

Details of BCE4



|                                   |  |            |                   |   |            |  |            |            |  |  |            |   |  |            |            |   |  |  |            |  
|---------------------------------- |  | ---------- | ----------------- | - | ---------- |  | ---------- | ---------- |  |  | ---------- | - |  | ---------- | ---------- | - |  |  | ---------- | -
|Date of grant (Board of Directors) |  | 01/21/2009 |                   |   | 01/21/2009 |  |            | 01/21/2009 |  |  | 01/21/2009 |   |  | 01/21/2009 |           
|Vesting period (years)             |  |            | 0                 |   |            |  | 1          |            |  |  | 2          |   |  |            | 3          |   |  |  | 4          |  
|Plan expiration date               |  |            | 01/20/2019        |   |            |  | 01/20/2019 |            |  |  | 01/20/2019 |   |  |            | 01/20/2019 |   |  |  | 01/20/2019 |  
|Number of BCE4 granted             |  |            | 2,411             |   |            |  | 1,340      |            |  |  | 536        |   |  |            | 536        |   |  |  | 535        |  
|Share entitlement per BCE4(1)      |  |            | 15                |   |            |  | 15         |            |  |  | 15         |   |  |            | 15         |   |  |  | 15         |  
|Exercise price                     |  |            | 65                |   |            |  | 65         |            |  |  | 65         |   |  |            | 65         |   |  |  | 65         |  
|Valuation method used              |  |            | Black and Scholes |  
|Grant date share fair value        |  |            | 70                |   |            |  | 70         |            |  |  | 70         |   |  |            | 70         |   |  |  | 70         |  
|Expected volatility                |  |            | 40                | % |            |  | 40         | %          |  |  | 40         | % |  |            | 40         | % |  |  | 40         | %
|Average life of BCE4               |  |            | 5.0               |   |            |  | 5.5        |            |  |  | 6.0        |   |  |            | 6.5        |   |  |  | 7.0        |  
|Discount rate(2)                   |  |            | 2.71              | % |            |  | 2.71       | %          |  |  | 2.98       | % |  |            | 2.98       | % |  |  | 3.11       | %
|Expected dividends                 |  |            | 0                 | % |            |  | 0          | %          |  |  | 0          | % |  |            | 0          | % |  |  | 0          | %
|Performance conditions             |  |            | NA                |   |            |  | NA         |            |  |  | NA         |   |  |            | NA         |   |  |  | NA         |  
|Fair value per BCE4                |  |            | 29.06             |   |            |  | 30.33      |            |  |  | 31.90      |   |  |            | 33.06      |   |  |  | 34.35      |  



|(1) | The number of shares takes into account an exercise parity adjusted by the division by 15 of the nominal value of the shares decided by the general meeting on December 9, 2011; each BCE4 warrant now gives the right
to subscribe to 15 new shares instead of 1 new share. For the same reason, the exercise price of each BCE4 plan was adjusted as a result and is thus equal to 1/15th of the price initially determined by the general meeting that authorized each of the
plans.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | Based on French government bonds (GFRN) with a maturity corresponding to the maturity of BCE4.
|--- | ----------------------------------------------------------------------------------------------



F-39



---

##### Table of Contents

Change in Number of BCE4 Outstanding



|                               |  |             |       |  |      |  |       |      |  |  |       | 
|------------------------------ |  | ----------- | ----- |  | ---- |  | ----- | ---- |  |  | ----- | 
|                               |  | December 31 |      
|Number of BCE4                 |  | 2013        |       |  | 2014 |  |       | 2015 | 
|Balance at beginning of period |  |             | 5,358 |  |      |  | 5,358 |      |  |  | 5,358 | 
|Granted during the period      |  |             |      |  |      |  |      |      |  |  |      | 
|Forfeited during the period    |  |             |      |  |      |  |      |      |  |  |      | 
|Exercised during the period    |  |             |      |  |      |  |      |      |  |  | 2,667 | 
|Expired during the period      |  |             |      |  |      |  |      |      |  |  |      | 
|Balance at end of period       |  |             | 5,358 |  |      |  | 5,358 |      |  |  | 2,691 | 

Breakdown of the Closing Balance



|                                  |  |             |       |  |             |  |       |             |  |  |             |  |  |             |       |  |             |  |       |  |  |  |       | 
|--------------------------------- |  | ----------- | ----- |  | ----------- |  | ----- | ----------- |  |  | ----------- |  |  | ----------- | ----- |  | ----------- |  | ----- |  |  |  | ----- | 
|                                  |  | December 31 |      
|                                  |  | 2013        |       |  | 2014        |  |       | 2015        | 
|Number of BCE4                    |  | Outstanding |       |  | Exercisable |  |       | Outstanding |  |  | Exercisable |  |  | Outstanding |       |  | Exercisable | 
|BCE4 with exercise price of 6522 |  |             | 5,358 |  |             |  | 5,358 |             |  |  | 5,358       |  |  |             | 5,358 |  |             |  | 2,691 |  |  |  | 2,691 | 
|Total                             |  |             | 5,358 |  |             |  | 5,358 |             |  |  | 5,358       |  |  |             | 5,358 |  |             |  | 2,691 |  |  |  | 2,691 | 

17.5 BSA2010

Date
of Grant 01/28/2011

The BSA may be exercised by the beneficiary on the basis of the following vesting schedule:



| |  |  | up to 2,510 BSA on the 12/23/2011;
| | - |  | ----------------------------------



| |  |  | up to 2,510 BSA on the 12/23/2012;
| | - |  | ----------------------------------



| |  |  | up to 2,510 BSA on the 12/23/2013;
| | - |  | ----------------------------------



| |  |  | up to 2,509 BSA on the 12/23/2014; and
| | - |  | --------------------------------------



| |  |  | at the latest before the 01/28/2021.
| | - |  | ------------------------------------

Date of Grant 06/24/2011

The BSA may be exercised by the beneficiary on the basis of the following vesting schedule:



| |  |  | up to one fourth (1/4) of the BSA on the 12/23/2011;
| | - |  | ----------------------------------------------------



| |  |  | up to one fourth (1/4) of the BSA on the 12/23/2012;
| | - |  | ----------------------------------------------------



| |  |  | up to one fourth (1/4) of the BSA on the 12/23/2013;
| | - |  | ----------------------------------------------------



| |  |  | up to one fourth (1/4) of the BSA on the 12/23/2014; and
| | - |  | --------------------------------------------------------



| |  |  | at the latest before the 11/22/2021.
| | - |  | ------------------------------------

Date of Grant 11/22/2011

The BSA may be exercised by the beneficiary on the basis of the following vesting schedule:



| |  |  | up to 335 BSA on the 11/22/2012;
| | - |  | --------------------------------



| |  |  | up to 335 BSA on the 11/22/2013;
| | - |  | --------------------------------



| |  |  | up to 334 BSA on the 11/22/2014;
| | - |  | --------------------------------



| |  |  | up to 334 BSA on the 11/22/2015; and
| | - |  | ------------------------------------



| |  |  | at the latest before the 11/22/2021.
| | - |  | ------------------------------------



F-40



---

##### Table of Contents

Details of BSA2010



|                                   |  |            |                   |   |            |  |                   |            |  |  |            |   |  |            |            |   |            |  |            |            |  |  |            |   |  |  |            |   |  |  |            |  
|---------------------------------- |  | ---------- | ----------------- | - | ---------- |  | ----------------- | ---------- |  |  | ---------- | - |  | ---------- | ---------- | - | ---------- |  | ---------- | ---------- |  |  | ---------- | - |  |  | ---------- | - |  |  | ---------- | -
|Date of grant (Board of Directors) |  | 01/28/2011 |                   |   | 01/28/2011 |  |                   | 01/28/2011 |  |  | 01/28/2011 |   |  | 06/24/2011 |            |   | 06/24/2011 |  |            | 06/24/2011 |  |  | 06/24/2011 |  
|Vesting period (years)             |  |            | 0.9               |   |            |  | 1.9               |            |  |  | 2.9        |   |  |            | 3.9        |   |            |  | 0.5        |            |  |  | 1.5        |   |  |  | 2.5        |   |  |  | 3.5        |  
|Plan expiration date               |  |            | 01/27/2021        |   |            |  | 01/27/2021        |            |  |  | 01/27/2021 |   |  |            | 01/27/2021 |   |            |  | 11/22/2021 |            |  |  | 11/22/2021 |   |  |  | 11/22/2021 |   |  |  | 11/22/2021 |  
|Number of BSA2010 granted          |  |            | 2,510             |   |            |  | 2,510             |            |  |  | 2,510      |   |  |            | 2,509      |   |            |  | 2,000      |            |  |  | 2,000      |   |  |  | 2,000      |   |  |  | 2,000      |  
|Share entitlement per BSA2010(1)   |  |            | 15                |   |            |  | 15                |            |  |  | 15         |   |  |            | 15         |   |            |  | 15         |            |  |  | 15         |   |  |  | 15         |   |  |  | 15         |  
|Exercise price                     |  |            | 77                |   |            |  | 77                |            |  |  | 77         |   |  |            | 77         |   |            |  | 77         |            |  |  | 77         |   |  |  | 77         |   |  |  | 77         |  
|Valuation method used              |  |            | Black and Scholes |   |            |  | Black and Scholes |           
|Grant date share fair value        |  |            | 77                |   |            |  | 77                |            |  |  | 77         |   |  |            | 77         |   |            |  | 77         |            |  |  | 77         |   |  |  | 77         |   |  |  | 77         |  
|Expected volatility                |  |            | 40                | % |            |  | 40                | %          |  |  | 40         | % |  |            | 40         | % |            |  | 40         | %          |  |  | 40         | % |  |  | 40         | % |  |  | 40         | %
|Average life of BSA2010            |  |            | 5.5               |   |            |  | 6.0               |            |  |  | 6.5        |   |  |            | 7.0        |   |            |  | 5.5        |            |  |  | 6.0        |   |  |  | 6.5        |   |  |  | 7.0        |  
|Discount rate(2)                   |  |            | 2.70              | % |            |  | 2.82              | %          |  |  | 2.82       | % |  |            | 3.04       | % |            |  | 2.55       | %          |  |  | 2.68       | % |  |  | 2.68       | % |  |  | 2.87       | %
|Expected dividends                 |  |            | 0                 | % |            |  | 0                 | %          |  |  | 0          | % |  |            | 0          | % |            |  | 0          | %          |  |  | 0          | % |  |  | 0          | % |  |  | 0          | %
|Performance conditions             |  |            | NA                |   |            |  | NA                |            |  |  | NA         |   |  |            | NA         |   |            |  | NA         |            |  |  | NA         |   |  |  | NA         |   |  |  | NA         |  
|Fair value per BSA2010             |  |            | 31.33             |   |            |  | 32.90             |            |  |  | 34.23      |   |  |            | 35.84      |   |            |  | 31.15      |            |  |  | 32.70      |   |  |  | 34.02      |   |  |  | 35.57      |  



|(1) | The number of shares takes into account an exercise parity adjusted by the division by 15 of the nominal value of the shares decided by the general meeting on December 9, 2011; each BSA2010 warrant now gives the
right to subscribe to 15 new shares instead of 1 new share. For the same reason, the exercise price of each BSA2010 plan was adjusted as a result and is thus equal to 1/15th of the price initially determined by the general meeting that authorized
each of the plans.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | Based on French government bonds (GFRN) with a maturity corresponding to the maturity of BSA2010.
|--- | -------------------------------------------------------------------------------------------------



|                                   |  |            |                   |   |            |  |            |            |  |  |            |   |  |  |            |  
|---------------------------------- |  | ---------- | ----------------- | - | ---------- |  | ---------- | ---------- |  |  | ---------- | - |  |  | ---------- | -
|Date of grant (Board of Directors) |  | 11/22/2011 |                   |   | 11/22/2011 |  |            | 11/22/2011 |  |  | 11/22/2011 |  
|Vesting period (years)             |  |            | 1.0               |   |            |  | 2.0        |            |  |  | 3.0        |   |  |  | 4.0        |  
|Plan expiration date               |  |            | 11/22/2021        |   |            |  | 11/22/2021 |            |  |  | 11/22/2021 |   |  |  | 11/22/2021 |  
|Number of BSA2010 granted          |  |            | 335               |   |            |  | 335        |            |  |  | 334        |   |  |  | 334        |  
|Share entitlement per BSA(1)       |  |            | 15                |   |            |  | 15         |            |  |  | 15         |   |  |  | 15         |  
|Exercise price                     |  |            | 77                |   |            |  | 77         |            |  |  | 77         |   |  |  | 77         |  
|Valuation method used              |  |            | Black and Scholes |  
|Grant date share fair value        |  |            | 77                |   |            |  | 77         |            |  |  | 77         |   |  |  | 77         |  
|Expected volatility                |  |            | 40                | % |            |  | 40         | %          |  |  | 40         | % |  |  | 40         | %
|Average life of BSA                |  |            | 5.5               |   |            |  | 6.0        |            |  |  | 6.5        |   |  |  | 7.0        |  
|Discount rate(2)                   |  |            | 2.23              | % |            |  | 2.60       | %          |  |  | 2.60       | % |  |  | 2.85       | %
|Expected dividends                 |  |            | 0                 | % |            |  | 0          | %          |  |  | 0          | % |  |  | 0          | %
|Performance conditions             |  |            | NA                |   |            |  | NA         |            |  |  | NA         |   |  |  | NA         |  
|Fair value per BSA                 |  |            | 30.70             |   |            |  | 32.58      |            |  |  | 33.89      |   |  |  | 35.54      |  



|(1) | The number of shares takes into account an exercise parity adjusted by the division by 15 of the nominal value of the shares decided by the general meeting on December 9, 2011; each BSA2010 warrant now gives the
right to subscribe to 15 new shares instead of 1 new share. For the same reason, the exercise price of each BSA2010 plan was adjusted as a result and is thus equal to 1/15th of the price initially determined by the general meeting that authorized
each of the plans.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | Based on French government bonds (GFRN) with a maturity corresponding to the maturity of BSA2010.
|--- | -------------------------------------------------------------------------------------------------

Change in Number of BSA2010 Outstanding



|                               |  |             |        |  |      |  |        |      |  |  |       | 
|------------------------------ |  | ----------- | ------ |  | ---- |  | ------ | ---- |  |  | ----- | 
|                               |  | December 31 |       
|Number of BSA                  |  | 2013        |        |  | 2014 |  |        | 2015 | 
|Balance at beginning of period |  |             | 11,848 |  |      |  | 11,848 |      |  |  | 8,334 | 
|Granted during the period      |  |             |       |  |      |  |       |      |  |  |      | 
|Forfeited during the period    |  |             |       |  |      |  |       |      |  |  |      | 
|Exercised during the period    |  |             |       |  |      |  | 3,514  |      |  |  | 7,290 | 
|Expired during the period      |  |             |       |  |      |  |       |      |  |  |      | 
|Balance at end of period       |  |             | 11,848 |  |      |  | 8,334  |      |  |  | 1,044 | 



F-41



---

##### Table of Contents

Breakdown of the Closing Balance



|                                   |  |             |        |  |             |  |       |             |  |  |             |  |  |             |       |  |             |  |       |  |  |  |       | 
|---------------------------------- |  | ----------- | ------ |  | ----------- |  | ----- | ----------- |  |  | ----------- |  |  | ----------- | ----- |  | ----------- |  | ----- |  |  |  | ----- | 
|                                   |  | December 31 |        |  |             | 
|                                   |  | 2013        |        |  | 2014        |  |       | 2015        |  |  |             | 
|Number of BSA2010                  |  | Outstanding |        |  | Exercisable |  |       | Outstanding |  |  | Exercisable |  |  | Outstanding |       |  | Exercisable | 
|BSA2010 with exercise price of 77 |  |             | 11,848 |  |             |  | 9,180 |             |  |  | 8,334       |  |  |             | 8,000 |  |             |  | 1,044 |  |  |  | 1,044 | 
|Total                              |  |             | 11,848 |  |             |  | 9,180 |             |  |  | 8,334       |  |  |             | 8,000 |  |             |  | 1,044 |  |  |  | 1,044 | 

17.6 BSAX

Date of
Grant 01/21/2009 and 06/25/2010

The BSAX may be exercised by the beneficiary on the basis of the following vesting schedule:



| |  |  | up to one fourth (1/4) of the BSAX on the first anniversary of the date of grant;
| | - |  | ---------------------------------------------------------------------------------



| |  |  | up to one fourth (1/4) of the BSAX on the second anniversary of the date of grant;
| | - |  | ----------------------------------------------------------------------------------



| |  |  | up to one fourth (1/4) of the BSAX on the third anniversary of the date of grant;
| | - |  | ---------------------------------------------------------------------------------



| |  |  | up to one fourth (1/4) of the BSAX on the fourth anniversary of the date of grant; and
| | - |  | --------------------------------------------------------------------------------------



| |  |  | at the latest within ten (10) years from the date of grant.
| | - |  | -----------------------------------------------------------

By a decision by the Board of Directors
meeting held on November 22, 2011, the BSAX warrants became exercisable beginning on the date of the first quotation of the shares of the Company on the Euronext regulated market in Paris.

Details of BSAX



|                                   |  |            |                   |   |            |  |                   |            |  |  |            |   |  |            |            |   |            |  |            |            |  |  |            |   |  |  |            |   |  |  |            |  
|---------------------------------- |  | ---------- | ----------------- | - | ---------- |  | ----------------- | ---------- |  |  | ---------- | - |  | ---------- | ---------- | - | ---------- |  | ---------- | ---------- |  |  | ---------- | - |  |  | ---------- | - |  |  | ---------- | -
|Date of grant (Board of Directors) |  | 01/21/2009 |                   |   | 01/21/2009 |  |                   | 01/21/2009 |  |  | 21/01/2009 |   |  | 06/25/2010 |            |   | 06/25/2010 |  |            | 06/25/2010 |  |  | 06/25/2010 |  
|Vesting period (years)             |  |            | 1                 |   |            |  | 2                 |            |  |  | 3          |   |  |            | 4          |   |            |  | 1          |            |  |  | 2          |   |  |  | 3          |   |  |  | 4          |  
|Plan expiration date               |  |            | 01/20/2019        |   |            |  | 01/20/2019        |            |  |  | 01/20/2019 |   |  |            | 01/20/2019 |   |            |  | 06/24/2020 |            |  |  | 06/24/2020 |   |  |  | 06/24/2020 |   |  |  | 06/24/2020 |  
|Number of BSAX granted             |  |            | 77                |   |            |  | 77                |            |  |  | 77         |   |  |            | 75         |   |            |  | 457        |            |  |  | 457        |   |  |  | 456        |   |  |  | 455        |  
|Share entitlement per BSAX(1)      |  |            | 15                |   |            |  | 15                |            |  |  | 15         |   |  |            | 15         |   |            |  | 15         |            |  |  | 15         |   |  |  | 15         |   |  |  | 15         |  
|Exercise price                     |  |            | 65                |   |            |  | 65                |            |  |  | 65         |   |  |            | 65         |   |            |  | 65         |            |  |  | 65         |   |  |  | 65         |   |  |  | 65         |  
|Valuation method used              |  |            | Black and Scholes |   |            |  | Black and Scholes |           
|Grant date share fair value        |  |            | 70                |   |            |  | 70                |            |  |  | 70         |   |  |            | 70         |   |            |  | 70         |            |  |  | 70         |   |  |  | 70         |   |  |  | 70         |  
|Expected volatility                |  |            | 40                | % |            |  | 40                | %          |  |  | 40         | % |  |            | 40         | % |            |  | 40         | %          |  |  | 40         | % |  |  | 40         | % |  |  | 40         | %
|Average life of BSAX               |  |            | 5.5               |   |            |  | 6.0               |            |  |  | 6.5        |   |  |            | 7.0        |   |            |  | 5.5        |            |  |  | 6.0        |   |  |  | 6.5        |   |  |  | 7.0        |  
|Discount rate(2)                   |  |            | 2.71              | % |            |  | 2.98              | %          |  |  | 2.98       | % |  |            | 3.11       | % |            |  | 2.04       | %          |  |  | 2.23       | % |  |  | 2.23       | % |  |  | 2.50       | %
|Expected dividends                 |  |            | 0                 | % |            |  | 0                 | %          |  |  | 0          | % |  |            | 0          | % |            |  | 0          | %          |  |  | 0          | % |  |  | 0          | % |  |  | 0          | %
|Performance conditions             |  |            | NA                |   |            |  | NA                |            |  |  | NA         |   |  |            | NA         |   |            |  | NA         |            |  |  | NA         |   |  |  | NA         |   |  |  | NA         |  
|Fair value per BSAX                |  |            | 30.32             |   |            |  | 31.89             |            |  |  | 33.05      |   |  |            | 33.45      |   |            |  | 29.47      |            |  |  | 30.88      |   |  |  | 31.99      |   |  |  | 33.44      |  



|(1) | The number of shares takes into account an exercise parity adjusted by the division by 15 of the nominal value of the shares decided by the general meeting on December 9, 2011; each BSAX warrant now gives the right
to subscribe to 15 new shares instead of 1 new share. For the same reason, the exercise price of each BSAX plan was adjusted as a result and is thus equal to 1/15th of the price initially determined by the general meeting that authorized each of the
plans.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | Based on French government bonds (GFRN) with a maturity corresponding to the maturity of BSAX.
|--- | ----------------------------------------------------------------------------------------------

Change
in Number of BSAX Outstanding



|                               |  |             |       |  |      |  |       |      |  |  |       | 
|------------------------------ |  | ----------- | ----- |  | ---- |  | ----- | ---- |  |  | ----- | 
|                               |  | December 31 |      
|Number of BSAX                 |  | 2013        |       |  | 2014 |  |       | 2015 | 
|Balance at beginning of period |  |             | 2,131 |  |      |  | 2,131 |      |  |  | 2,131 | 
|Granted during the period      |  |             |      |  |      |  |      |      |  |  |      | 
|Forfeited during the period    |  |             |      |  |      |  |      |      |  |  |      | 
|Exercised during the period    |  |             |      |  |      |  |      |      |  |  | 1,095 | 
|Expired during the period      |  |             |      |  |      |  |      |      |  |  |      | 
|Balance at end of period       |  |             | 2,131 |  |      |  | 2,131 |      |  |  | 1,036 | 



F-42



---

##### Table of Contents

Breakdown of the Closing Balance



|                                |  |             |       |  |             |  |       |             |  |  |             |  |  |             |       |  |             |  |       |  |  |  |       | 
|------------------------------- |  | ----------- | ----- |  | ----------- |  | ----- | ----------- |  |  | ----------- |  |  | ----------- | ----- |  | ----------- |  | ----- |  |  |  | ----- | 
|                                |  | December 31 |      
|                                |  | 2013        |       |  | 2014        |  |       | 2015        | 
|Number of BSAX                  |  | Outstanding |       |  | Exercisable |  |       | Outstanding |  |  | Exercisable |  |  | Outstanding |       |  | Exercisable | 
|BSAX with exercise price of 65 |  |             | 2,131 |  |             |  | 2,131 |             |  |  | 2,131       |  |  |             | 2,131 |  |             |  | 1,036 |  |  |  | 1,036 | 
|Total                           |  |             | 2,131 |  |             |  | 2,131 |             |  |  | 2,131       |  |  |             | 2,131 |  |             |  | 1,036 |  |  |  | 1,036 | 

17.7 BCE2010

Date
of Grant 06/24/2011

The BCE may be exercised by the beneficiary on the basis of the following vesting schedule:



| |  |  | up to one fourth (1/4) of the BCE on the 12/23/2011;
| | - |  | ----------------------------------------------------



| |  |  | up to one fourth (1/4) of the BCE on the 12/23/2012;
| | - |  | ----------------------------------------------------



| |  |  | up to one fourth (1/4) of the BCE on the 12/23/2013;
| | - |  | ----------------------------------------------------



| |  |  | up to one fourth (1/4) of the BCE on the 12/23/2014; and
| | - |  | --------------------------------------------------------



| |  |  | at the latest within before the 11/22/2021.
| | - |  | -------------------------------------------

Date of Grant 11/22/2011

The BSPCE may be exercised by the beneficiary on the basis of the following vesting schedule:



| |  |  | up to one fourth (1/4) of the BSPCE on the 11/22/2012;
| | - |  | ------------------------------------------------------



| |  |  | up to one fourth (1/4) of the BSPCE on the 11/22/2013;
| | - |  | ------------------------------------------------------



| |  |  | up to one fourth (1/4) of the BSPCE on the 11/22/2014;
| | - |  | ------------------------------------------------------



| |  |  | up to one fourth (1/4) of the BSPCE on the 11/22/2015; and
| | - |  | ----------------------------------------------------------



| |  |  | at the latest within before the 11/22/2021.
| | - |  | -------------------------------------------

Details of BCE2010



|                                   |  |            |                   |   |            |  |                   |            |  |  |            |   |  |            |            |   |            |  |            |            |  |  |            |   |  |  |            |   |  |  |            |  
|---------------------------------- |  | ---------- | ----------------- | - | ---------- |  | ----------------- | ---------- |  |  | ---------- | - |  | ---------- | ---------- | - | ---------- |  | ---------- | ---------- |  |  | ---------- | - |  |  | ---------- | - |  |  | ---------- | -
|Date of grant (Board of Directors) |  | 06/24/2011 |                   |   | 06/24/2011 |  |                   | 06/24/2011 |  |  | 06/24/2011 |   |  | 11/22/2011 |            |   | 11/22/2011 |  |            | 11/22/2011 |  |  | 11/22/2011 |  
|Vesting period (years)             |  |            | 0.5               |   |            |  | 1.5               |            |  |  | 2.5        |   |  |            | 3.5        |   |            |  | 1          |            |  |  | 2          |   |  |  | 3          |   |  |  | 4          |  
|Plan expiration date               |  |            | 11/22/2021        |   |            |  | 11/22/2021        |            |  |  | 11/22/2021 |   |  |            | 11/22/2021 |   |            |  | 11/22/2021 |            |  |  | 11/22/2021 |   |  |  | 11/22/2021 |   |  |  | 11/22/2021 |  
|Number of BCE2010 granted          |  |            | 6,000             |   |            |  | 6,000             |            |  |  | 6,000      |   |  |            | 6,000      |   |            |  | 2,510      |            |  |  | 2,510      |   |  |  | 2,510      |   |  |  | 2,509      |  
|Share entitlement per BCE2010(1)   |  |            | 15                |   |            |  | 15                |            |  |  | 15         |   |  |            | 15         |   |            |  | 15         |            |  |  | 15         |   |  |  | 15         |   |  |  | 15         |  
|Exercise price                     |  |            | 77                |   |            |  | 77                |            |  |  | 77         |   |  |            | 77         |   |            |  | 77         |            |  |  | 77         |   |  |  | 77         |   |  |  | 77         |  
|Valuation method used              |  |            | Black and Scholes |   |            |  | Black and Scholes |           
|Grant date share fair value        |  |            | 77                |   |            |  | 77                |            |  |  | 77         |   |  |            | 77         |   |            |  | 77         |            |  |  | 77         |   |  |  | 77         |   |  |  | 77         |  
|Expected volatility                |  |            | 40                | % |            |  | 40                | %          |  |  | 40         | % |  |            | 40         | % |            |  | 40         | %          |  |  | 40         | % |  |  | 40         | % |  |  | 40         | %
|Average life of BCE2010            |  |            | 5.5               |   |            |  | 6.0               |            |  |  | 6.5        |   |  |            | 7.0        |   |            |  | 5.4        |            |  |  | 5.9        |   |  |  | 6.4        |   |  |  | 6.9        |  
|Discount rate(2)                   |  |            | 2.55              | % |            |  | 2.68              | %          |  |  | 2.68       | % |  |            | 2.87       | % |            |  | 2.05       | %          |  |  | 2.42       | % |  |  | 2.42       | % |  |  | 2.66       | %
|Expected dividends                 |  |            | 0                 | % |            |  | 0                 | %          |  |  | 0          | % |  |            | 0          | % |            |  | 0          | %          |  |  | 0          | % |  |  | 0          | % |  |  | 0          | %
|Performance conditions             |  |            | NA                |   |            |  | NA                |            |  |  | NA         |   |  |            | NA         |   |            |  | NA         |            |  |  | NA         |   |  |  | NA         |   |  |  | NA         |  
|Fair value per BCE2010             |  |            | 31.16             |   |            |  | 32.71             |            |  |  | 34.03      |   |  |            | 35.58      |   |            |  | 30.42      |            |  |  | 32.29      |   |  |  | 33.58      |   |  |  | 35.2       |  



|(1) | The number of shares takes into account an exercise parity adjusted by the division by 15 of the nominal value of the shares decided by the general meeting on December 9, 2011; each BCE2010 warrant now gives the
right to subscribe to 15 new shares instead of 1 new share. For the same reason, the exercise price of each BCE2010 plan was adjusted as a result and is thus equal to 1/15th of the price initially determined by the general meeting that authorized
each of the plans.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | Based on French government bonds (GFRN) with a maturity corresponding to the maturity of BCE2010.
|--- | -------------------------------------------------------------------------------------------------



F-43



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##### Table of Contents

Change in Number of BCE2010 Outstanding



|                               |  |             |        |  |      |  |        |      |  |  |        | 
|------------------------------ |  | ----------- | ------ |  | ---- |  | ------ | ---- |  |  | ------ | 
|                               |  | December 31 |       
|Number of BCE2010              |  | 2013        |        |  | 2014 |  |        | 2015 | 
|Balance at beginning of period |  |             | 34,039 |  |      |  | 34,039 |      |  |  | 29,972 | 
|Granted during the period      |  |             |       |  |      |  |       |      |  |  |       | 
|Forfeited during the period    |  |             |       |  |      |  |       |      |  |  |       | 
|Exercised during the period    |  |             |       |  |      |  | 4,067  |      |  |  | 13,998 | 
|Expired during the period      |  |             |       |  |      |  |       |      |  |  |       | 
|Balance at end of period       |  |             | 34,039 |  |      |  | 29,972 |      |  |  | 15,974 | 

Breakdown of the Closing Balance



|                                      |  |             |        |  |             |  |        |             |  |  |             |  |  |             |        |  |             |  |        |  |  |  |        | 
|------------------------------------- |  | ----------- | ------ |  | ----------- |  | ------ | ----------- |  |  | ----------- |  |  | ----------- | ------ |  | ----------- |  | ------ |  |  |  | ------ | 
|                                      |  | December 31 |       
|                                      |  | 2013        |        |  | 2014        |  |        | 2015        | 
|Number of BCE2010                     |  | Outstanding |        |  | Exercisable |  |        | Outstanding |  |  | Exercisable |  |  | Outstanding |        |  | Exercisable | 
|BCE2010 with exercise price of 77.00 |  |             | 34,039 |  |             |  | 23,020 |             |  |  | 29,972      |  |  |             | 27,463 |  |             |  | 15,974 |  |  |  | 15,974 | 
|Total                                 |  |             | 34,039 |  |             |  | 23,020 |             |  |  | 29,972      |  |  |             | 27,463 |  |             |  | 15,974 |  |  |  | 15,974 | 

17.8 OPTIONS

Grant
of 09/18/2013

The share options may be exercised by the beneficiary on the basis of the following vesting schedule:



| |  |  | up to 518,000 SO (all the SO) on the fourth anniversary of the date of grant; and
| | - |  | ---------------------------------------------------------------------------------



| |  |  | at the latest within ten (10) years from the date of grant.
| | - |  | -----------------------------------------------------------

Grant of 06/03/2014

The share options may be exercised by the beneficiary on the basis of the following vesting schedule:



| |  |  | up to 75,000 SO (all the SO) on the 06/04/2016; and
| | - |  | ---------------------------------------------------



| |  |  | at the latest before the 06/03/2024.
| | - |  | ------------------------------------

Details of SO



|                                   |  |            |                   |   |            |  |            |            |  |  |            |   |  |  |            |  
|---------------------------------- |  | ---------- | ----------------- | - | ---------- |  | ---------- | ---------- |  |  | ---------- | - |  |  | ---------- | -
|Date of grant (Board of Directors) |  | 09/18/2013 |                   |   | 06/03/2014 |  |            | 06/23/2015 |  |  | 11/19/2015 |  
|Vesting period (years)             |  |            | 4                 |   |            |  | 2          |            |  |  | 4          |   |  |  | 4          |  
|Plan expiration date               |  |            | 09/18/2023        |   |            |  | 06/03/2024 |            |  |  | 06/23/2025 |   |  |  | 11/19/2015 |  
|Number of SO granted               |  |            | 518,000           |   |            |  | 75,000     |            |  |  | 120,000    |   |  |  | 195,000    |  
|Share entitlement per SO(1)        |  |            | 1                 |   |            |  | 1          |            |  |  | 1          |   |  |  | 1          |  
|Exercise price                     |  |            | 7.57              |   |            |  | 19.01      |            |  |  | 48.90      |   |  |  | 66.06      |  
|Valuation method used              |  |            | Black and Scholes |   |            |  |            |            |  |  |            |   |  |  |            |  
|Grant date share fair value        |  |            | 7.9               |   |            |  | 19.01      |            |  |  | 48.9       |   |  |  | 66.06      |  
|Expected volatility                |  |            | 40                | % |            |  | 40         | %          |  |  | 51         | % |  |  | 51         | %
|Average life of SO                 |  |            | 7.0               |   |            |  | 6.0        |            |  |  | 7.0        |   |  |  | 7.0        |  
|Discount rate(2)                   |  |            | 1.72              | % |            |  | 0.89       | %          |  |  | 0.89       | % |  |  | 0.81       | %
|Expected dividends                 |  |            | 0                 | % |            |  | 0          | %          |  |  | 0          | % |  |  | 0          | %
|Performance conditions             |  |            | NA                |   |            |  | NA         |            |  |  | NA         |   |  |  | NA         |  
|Fair value per SO                  |  |            | 3.57              |   |            |  | 7.46       |            |  |  | 25.28      |   |  |  | 34.05      |  



|(1) | The number of shares takes into account an exercise parity adjusted by the division by 15 of the nominal value of the shares decided by the general meeting on December 9, 2011; each SO now gives the right to
subscribe to 15 new shares instead of 1 new share. For the same reason, the exercise price of each SO plan was adjusted as a result and is thus equal to 1/15th of the price initially determined by the general meeting that authorized each of the
plans.
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|(2) | Based on French government bonds (GFRN) with a maturity corresponding to the maturity of SO.
|--- | --------------------------------------------------------------------------------------------



F-44



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##### Table of Contents

Change in Number of SO Outstanding



|                               |  |             |         |  |      |  |         |      |  |  |         | 
|------------------------------ |  | ----------- | ------- |  | ---- |  | ------- | ---- |  |  | ------- | 
|                               |  | December 31 |        
|Number of SO                   |  | 2013        |         |  | 2014 |  |         | 2015 | 
|Balance at beginning of period |  |             |        |  |      |  | 518,000 |      |  |  | 546,000 | 
|Granted during the period      |  |             | 518,000 |  |      |  | 75,000  |      |  |  | 315,000 | 
|Forfeited during the period    |  |             |        |  |      |  | 47,000  |      |  |  |        | 
|Exercised during the period    |  |             |        |  |      |  |        |      |  |  |        | 
|Expired during the period      |  |             |        |  |      |  |        |      |  |  |        | 
|Balance at end of period       |  |             | 518,000 |  |      |  | 546,000 |      |  |  | 861,000 | 

Breakdown of the Closing Balance



|                                 |  |             |         |  |             |  |   |             |  |  |             |  |  |             |   |  |             |  |         |  |  |  |   | 
|-------------------------------- |  | ----------- | ------- |  | ----------- |  | - | ----------- |  |  | ----------- |  |  | ----------- | - |  | ----------- |  | ------- |  |  |  | - | 
|                                 |  | December 31 |        
|                                 |  | 2013        |         |  | 2014        |  |   | 2015        | 
|Number of SO                     |  | Outstanding |         |  | Exercisable |  |   | Outstanding |  |  | Exercisable |  |  | Outstanding |   |  | Exercisable | 
|SO with exercise price of 7.57  |  |             | 518,000 |  |             |  |  |             |  |  | 471,000     |  |  |             |  |  |             |  | 471,000 |  |  |  |  | 
|SO with exercise price of 19.01 |  |             |        |  |             |  |  |             |  |  | 75,000      |  |  |             |  |  |             |  | 75,000  |  |  |  |  | 
|SO with exercise price of 48,90 |  |             |        |  |             |  |  |             |  |  |            |  |  |             |  |  |             |  | 120,000 |  |  |  |  | 
|SO with exercise price of 66,06 |  |             |        |  |             |  |  |             |  |  |            |  |  |             |  |  |             |  | 195,000 |  |  |  |  | 
|Total                            |  |             | 518,000 |  |             |  |  |             |  |  | 546,000     |  |  |             |  |  |             |  | 861,000 |  |  |  |  | 

The exercise prices, anticipated lifetime, and fair value of the underlying shares based on the share price on the Euronext
market on the grant date of the warrants were used for the valuation of each category of compensation in shares.

17.9 FREE SHARES

Dates of Grant 04/02/2012, 07/25/2012, 11/28/2012, 09/12/2013 and 06/03/2014, 09/30/2015 and 12/15/2015

The free shares are subject to a two-year vesting period.

Details of Free Shares



|                                            |  |            |         |     |            |  |         |            |  |  |                       |   |  |            |         |     |  |  |         |    
|------------------------------------------- |  | ---------- | ------- | --- | ---------- |  | ------- | ---------- |  |  | --------------------- | - |  | ---------- | ------- | --- |  |  | ------- | ---
|Date of grant (Board of Directors)          |  | 04/02/2012 |         |     | 07/25/2012 |  |         | 11/28/2012 |  |  | 07/25/2013&09/12/2013 |   |  | 06/03/2014 |        
|Vesting period (years)                      |  |            | 2       |     |            |  | 2       |            |  |  | 2                     |   |  |            | 2       |     |  |  | 2       |    
|Number of free shares granted               |  |            | 669,796 |     |            |  | 134,081 |            |  |  | 35,360                |   |  |            | 501,500 |     |  |  | 186,000 |    
|Share entitlement per free share (1)        |  |            | 1       |     |            |  | 1       |            |  |  | 1                     |   |  |            | 1       |     |  |  | 1       |    
|Grant date share fair value                 |  |            | 8.86    |     |            |  | 8.20    |            |  |  | 8.70                  |   |  |            | 7.96    |     |  |  | 19.01   |    
|Expected dividends                          |  |            | 0       | %   |            |  | 0       | %          |  |  | 0                     | % |  |            | 0       | %   |  |  | 0       | %  
|Performance conditions                      |  |            | Yes     | (1) |            |  | Yes     | (1)        |  |  | No                    |   |  |            | Yes     | (2) |  |  | Yes     | (3)
|Expected turnover during the vesting period |  |            | 1       | %   |            |  | 1       | %          |  |  | 1                     | % |  |            | 1       | %   |  |  | 1       | %  
|                                            |  |            |        
|Date of grant (Board of Directors)          |  | 09/30/2015 |         |     | 12/15/2015 |  |         |            | 
|Vesting period (years)                      |  |            | 2       |     |            |  | 2       |            | 
|Number of free shares granted               |  |            | 708,500 |     |            |  | 42,000  |            | 
|Share entitlement per free share (1)        |  |            | 1       |     |            |  | 1       |            | 
|Grant date share fair value                 |  |            | 62.99   |     |            |  | 64.14   |            | 
|Expected dividends                          |  |            | 0       | %   |            |  | 0       | %          | 
|Performance conditions                      |  |            | Yes     | (4) |            |  | Yes     | (4)        | 
|Expected turnover during the vesting period |  |            | 0       | %   |            |  | 0       | %          | 



|(1) | The acquisition of free shares is contingent for certain individuals (the Key Managers), including Dr. Benhamou, upon the achievement of the three performance criteria below:
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | One-third of the shares allocated to Key Managers will only be acquired from the later of the two following dates (i) expiry of a period of two years from the date of allocation and (ii) inclusion of the 100th patient in the VIPES phase II study.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



F-45



---

##### Table of Contents

| |  |  | One-third of the shares allocated to Key Managers will only be acquired from the later of the two following dates (i) expiry of a period of two years from the date of allocation and (ii) achievement of the
principal evaluation criterion in the VIPES phase II study.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | One-third of the shares allocated to Key Managers will only be acquired from the later of the two following dates (i) expiry of a period of two years from the date of allocation and (ii) inclusion of the first
patient in the Viaskin Milk phase II study.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|(2) | The acquisition of free shares is contingent for the Key Managers, including Dr. Benhamou, upon the achievement of the three performance criteria below:
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | One-third of the shares allocated to Key Managers will only be acquired from the later of the two following dates (i) expiry of a period of two years from the date of allocation and (ii) inclusion of the 100th patient in the Viaskin Peanut phase III study a maximum of twelve (12) months after the inclusion of the first patient in the study.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | One-third of the shares allocated to Key Managers will only be acquired from the later of the two following dates (i) expiry of a period of two years from the date of allocation and (ii) approval by the FDA of
a protocol for the Phase III trial of Viaskin Peanut.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | One-third of the shares allocated to Key Managers will only be acquired from the later of the two following dates (i) expiry of a period of two years from the date of allocation and (ii) an increase of at
least fifty (50) per cent for five (5) consecutive days of the Companys share price compared with the closing price of the Companys shares listed on Euronext Paris on the day of the adoption of the 2013 free share allocation
plan, or July 25, 2013.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

It is specified that in the event of a change of control of the Company (as defined in Article L. 233-3 of the
Commercial Code), the performance criteria will be considered as definitively achieved.



|(3) | The acquisition of free shares is contingent for the Key Managers, including Dr. Benhamou, upon the achievement of the two performance criteria below:
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Half of the shares allocated to Key Managers will only be acquired from the later of the two following dates (i) expiry of a period of two years from the date of allocation and (ii) inclusion of the 100th patient in the Viaskin Peanut phase III study a maximum of twelve (12) months after the inclusion of the first patient in the study.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Half of the shares allocated to Key Managers will only be acquired from the later of the two following dates (i) expiry of a period of two years from the date of allocation and (ii) approval by the FDA of a
protocol for the Phase III trial of Viaskin Peanut.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|(4) | The acquisition of free shares is contingent for all the employees, including Dr. Benhamou, upon the achievement of the three performance criteria below:
|--- | ---------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | One third of the shares will only be acquired from the later of the following two dates : (i) the end of the 2 year vesting period which runs from September 30, 2015 and (ii) achievement of the primary
efficacy endpoint of the Phase III Pepites trial for Viaskin Peanut.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | One third of the shares will only be acquired from the later of the following two dates : (i) the end of the 2 year vesting period which runs from September 30, 2015 and (ii) achievement of the primary
efficacy endpoint of the Phase II Miles trial for Viaskin Milk.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | One third of the shares will only be acquired from until the later of the following two dates: (i) the end of the 2 year vesting period which runs from September 30, 2015 and (ii) the beginning of
clinical testing of another product candidate from the Viaskin platform.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Performance conditions other than market conditions, which are
taken into account by adjusting the number of equity instruments included in the measurement of the transaction amount, but are not taken into account when estimating the fair value of the shares.



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##### Table of Contents

Change in Number of Free Shares Outstanding



|                               |  |             |           |  |      |  |           |      |  |  |           | 
|------------------------------ |  | ----------- | --------- |  | ---- |  | --------- | ---- |  |  | --------- | 
|                               |  | December 31 |          
|Number of Free shares          |  | 2013        |           |  | 2014 |  |           | 2015 | 
|Balance at beginning of period |  |             | 839,237   |  |      |  | 1,340,737 |      |  |  | 641,360   | 
|Granted during the period      |  |             | 501,500   |  |      |  | 186,000   |      |  |  | 750,500   | 
|Forfeited during the period    |  |             |          |  |      |  | 83,360    |      |  |  | 61,833    | 
|Exercised during the period    |  |             |          |  |      |  | 802,017   |      |  |  | 321,698   | 
|Expired during the period      |  |             |          |  |      |  |          |      |  |  |          | 
|Balance at end of period       |  |             | 1,340,737 |  |      |  | 641,360   |      |  |  | 1,008,329 | 

Note 18: Financial Revenue and Expenses

The financial income and expenses are broken down as follows (in thousands of Euros):



|                   |  |                         |     |   |      |  |      |      |  |  |       |  
|------------------ |  | ----------------------- | --- | - | ---- |  | ---- | ---- |  |  | ----- | -
|                   |  | December 31             |    
|                   |  | 2013                    |     |   | 2014 |  |      | 2015 | 
|                   |  | (in thousands of euros) |    
|Financial revenues |  |                         | 670 |   |      |  | 727  |      |  |  | 1,018 |  
|Financial expenses |  |                         | (24 | ) |      |  | (103 | )    |  |  | (146  | )
|Total              |  |                         | 646 |   |      |  | 624  |      |  |  | 871   |  

The financial income is primarily comprised of capital gains on the disposals of investment securities. The foreign exchange
losses and the expenses related to the accretion of the OSEO, BpiFrance and COFACE advances are classified as financial expenses in the Consolidated Statements of (Loss).

Note 19: Income Tax Expense

As mentioned in Note 3.13Accounting PrinciplesOther Income, the French Research Tax Credit is not included in the line item
Income taxes but included in the line item Other Income.

Reconciliation between the Effective and Nominal Income Tax Expense

The following table shows the reconciliation between the effective and nominal tax expense at the nominal standard French rate of 33.33% (excluding
additional contributions):



|                                                                                       |  |                         |         |   |      |  |         |      |  |  |         |  
|-------------------------------------------------------------------------------------- |  | ----------------------- | ------- | - | ---- |  | ------- | ---- |  |  | ------- | -
|                                                                                       |  | December 31             |        
|                                                                                       |  | 2013                    |         |   | 2014 |  |         | 2015 | 
|                                                                                       |  | (in thousands of euros) |        
|(Loss) before taxes                                                                    |  |                         | (19,306 | ) |      |  | (24,012 | )    |  |  | (44,674 | )
|Theoretical group tax rate                                                             |  |                         | 33.33   | % |      |  | 33.33   | %    |  |  | 33.33   | %
|                                                                                       |  |                         |        
|Nominal tax expense                                                                    |  |                         | 6,435   |   |      |  | 8,003   |      |  |  | 14,890  |  
|                                                                                       |  |                         |        
|Increase/decrease in tax expense arising from:                                         |  |                         |         |   |      |  |         |      |  |  |         |  
|                                                                                       |  |                         |        
|Permanent differences(1)                                                               |  |                         | 619     |   |      |  | 3,636   |      |  |  | 6,089   |  
|Research tax credit                                                                    |  |                         | 1,096   |   |      |  | 1,446   |      |  |  | 1,895   |  
|Share-based compensation                                                               |  |                         | (1,682  | ) |      |  | (1,546  | )    |  |  | (3,473  | )
|                                                                                       |  |                         |        
|Non recognition of deferred tax assets related to tax losses
and temporary differences |  |                         | (6,438  | ) |      |  | (11,458 | )    |  |  | (19,211 | )
|                                                                                       |  |                         |        
|Other differences                                                                      |  |                         | (30     | ) |      |  | (81     | )    |  |  | (190    | )
|Effective tax expense                                                                  |  |                         | 0       |   |      |  | 0       |      |  |  | 0       |  
|Effective tax rate                                                                     |  |                         | 0       | % |      |  | 0       | %    |  |  | 0       | %



|(1) | The significant balance of permanent differences is mainly affected by transaction costs on capital increases occurred in 2014 and 2015. These transaction costs are booked in equity and are subject to a tax deduction.
|--- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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##### Table of Contents

Deferred Tax Assets and Liabilities

As mentioned in Note 3.15, the Company has not recognized deferred tax assets in the Consolidated Statements of Financial Position. The amount of the deficit
carried forward at the end of December 2015 is 159 million including 156 million for DBV Technologie SA.

Note 20: Commitments

Obligations Under the Terms of the Ordinary Rental Agreements

On April 28, 2011, the Company signed with the company SELECTINVEST a lease for its premises.

On December 1, 2014, an expansion lease was signed between DBV and Nexity (formerly SELECTINVEST1).

On March 9, 2015 the Company signed a lease for the combined premises of offices and laboratories at Montrouge, in France, and moved its headquarters and
its laboratories there on January 4, 2016. The Bagneux premises has however been kept pour the industrial teams.

On April 25, 2015, the Company
signed a sub-lease for its premises for its American subsidiary company in New York.

The amount of future rents and charges in that capacity breaks down
as follows at December 31, 2015:



|                                |  |            |        | 
|------------------------------- |  | ---------- | ------ | 
|(Amounts in thousands of Euros) |  | 12/31/2015 |       
|                                | 
|2016                            |  |            | 2,013  | 
|2017                            |  |            | 1,790  | 
|2018                            |  |            | 1,658  | 
|2019                            |  |            | 1,658  | 
|2020                            |  |            | 1,485  | 
|2021                            |  |            | 1,361  | 
|2022                            |  |            | 1,361  | 
|2023                            |  |            | 1,361  | 
|2024                            |  |            | 794    | 
|                                |  |            |        | 
|Total                           |  |            | 13,481 | 
|                                |  |            |        | 



F-48



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##### Table of Contents

In July 2014, the Company signed a lease agreement with EVOSCIENCES to lease laboratory equipment. The future
rental payments as at December 31, 2015 are as follows:



| |  |  | 2016: 13,488;
| | - |  | --------------



| |  |  | 2017: 12,466.
| | - |  | --------------

The company has signed various ordinary rental agreements for office equipment and
vehicles. The future rental payments as at December 31, 2015 are as follows:



| |  |  | 2016: 7,527;
| | - |  | -------------



| |  |  | 2017: 7,527;
| | - |  | -------------



| |  |  | 2018: 4,391.
| | - |  | -------------

Obligations Under the Terms of Other Agreements

The Company signed with its bank CIC an acquisition contract of monetary market fund SICAV CM-CIC pledged as a guarantee for the ordinary rental
agreements of the premises of Bagneux for an amount of 0.4 million.

The Company also signed a letter of credit to ensure the sub-lease of its
premises of its New York subsidiary company for $164 thousand due on March 17, 2016. This credit note has been extended for an additional year.

In
addition, the Company took a term deposit for a sum of 227 thousand over 3 years.

As it has sub-contracted several important functions, the
Company has been required to conclude, within the framework of its current operations, sub-contracting contracts or short- or medium-term delegation contracts with various third parties, in France and abroad, which include various obligations that
are usual in these circumstances.

On November 18, 2015, the Company signed a subcontracting agreement with a contract research organization (CRO)
within the context of launching its Phase III clinical study for the Viaskin Peanut product. This study amounts to 9.3 million.

As of
December 31, 2015, the amount remaining to pay as part of this contract for years 2016, 2017 and 2018 was 7.4 million.

The Company signed a
subcontracting agreement with the same CRO within the context of launching its follow-up clinical study OLFUS for the Viaskin Peanut product. This study amounts to 6.4 million.

As of December 31, 2015, the amount remaining to pay as part of this contract for years 2016 and 2017 was 2.2 million.

The Company signed a subcontracting agreement with a second CRO within the context of launching its clinical study for the Viaskin Milk product. This study
amounts to 10.4 million.

As of December 31, 2015, the amount remaining to pay as part of this contract for years 2016, 2017 and 2018 was
7.7 million.

On January 7th 2009, the Company entered into an assignment, development and
co-ownership agreement with Public Welfare-Hospitals of Paris (LAssistance PubliqueHopitaux de Paris), or AP-HP, and Université Paris-Descartes, or UPD, by which the Company agreed to terms
of co-ownership with AP-HP and UPD of certain U.S. and foreign patents and patent applications, referred to herein as the shared patents. The Company, and any licensees or sublicensees the Company designates, have the exclusive right to commercial
uses of the shared patents. AP-HP and UPD agreed to use the shared patents only for internal research purposes and not to license the shared patents to any third party. Upon commercialization of any product covered by the shared patents, which the
Company expects would include its Viaskin product candidates, the Company will be obligated to pay AP-HP and UPD a percentage of net sales as a royalty. This royalty varies depending on the particular patent used in the product and is in the low
single digits. Additionally, if the Company licenses any of the shared patents to a third party and a licensee commercializes products covered by such shared patents, the Company will be obligated to pay AP-HP and UPD a percentage in the low single
digits of the money it receives from its licensee. If the Company does not sell any of its product candidates covered by the shared patents within 30 months from the date it first markets such product candidates, AP-HP may, upon six months
notice and subject to certain exceptions, convert its exclusive right to the commercial use of the shared patents to a non-exclusive right. Any party may terminate the license in the event of another partys substantial breach which remains
uncured after six months of receiving written notice of such breach. The agreement will also terminate in the event the Company ceases operations or is subject to a dissolution or bankruptcy proceedings. Absent early termination, the agreement will
automatically terminate upon the expiration of the last shared patent. In the event the agreement is terminated, the Company would no longer have the exclusive right to commercial use of the shared patents, though it would retain its shared
ownership rights. In addition, its ownership stake in certain jointly made improvements covered by the shared patents would survive termination of the agreement. The longest lived patent rights licensed to the Company under the agreement are
currently expected to expire in 2028. To date, this agreement has not had an impact on the Companys financial statements.



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##### Table of Contents

Note 21: Relationships with Related Parties

The compensation amounts for 2015 presented below, which were awarded to the members of the Board of Directors and the Executive Committee of the Company
totals 7.2 million euros.

Following the reorganization of the Company at the beginning of 2015, the Company henceforth considered the members of the
Executive Committee to be related parties.

Amounts in thousands of euros:



|                                                          |  |                                 |       |  |      |  |       |      |  |  |       | 
|--------------------------------------------------------- |  | ------------------------------- | ----- |  | ---- |  | ----- | ---- |  |  | ----- | 
|                                                          |  | December 31                     |      
|                                                          |  | 2013                            |       |  | 2014 |  |       | 2015 | 
|                                                          |  | (Amounts in thousands of Euros) |      
|Members of the Board of Directors                         |  |                                 | 381   |  |      |  | 433   |      |  |  | 605   | 
|Executive Committee                                       |  |                                 | 686   |  |      |  | 887   |      |  |  | 1,768 | 
|Directors fees                                           |  |                                 | 40    |  |      |  | 40    |      |  |  | 195   | 
|                                                          |  |                                 |      
|Share-based payments to members of the Board of Directors |  |                                 | 3,530 |  |      |  | 2,771 |      |  |  | 4,637 | 
|                                                          |  |                                 |      
|Total                                                     |  |                                 | 4,637 |  |      |  | 4,131 |      |  |  | 7,205 | 

The methods for the valuation of the benefit related to share-based payments are presented in Note 17.

A schedule of amounts payable to related parties as of December 31, in thousands of euros:



|                         |  |                                 |     |  |      |  |     |      |  |  |       | 
|------------------------ |  | ------------------------------- | --- |  | ---- |  | --- | ---- |  |  | ----- | 
|                         |  | December 31                     |    
|                         |  | 2013                            |     |  | 2014 |  |     | 2015 | 
|                         |  | (Amounts in thousands of Euros) |    
|Exceptional compensation |  |                                 | 109 |  |      |  | 345 |      |  |  | 674   | 
|Directors fees          |  |                                 | 36  |  |      |  | 40  |      |  |  | 195   | 
|Pension obligations      |  |                                 |    |  |      |  | 159 |      |  |  | 233   | 
|                         |  |                                 |    
|Total                    |  |                                 | 146 |  |      |  | 544 |      |  |  | 1,102 | 

Note 22: Earnings Per Share

The basic earnings per share is calculated by dividing the net income going to the shareholders of the Company by the weighted average number of common shares
outstanding during the course of the fiscal year. The weighted average number of shares was 13,604,687 in 2013. The weighted average number of shares was 16,086,247 in 2014. Taking into account the division of the nominal value of shares of the
Company by 15, which was decided by the annual general meeting on December 9, 2011 the amount of shares is adjusted, and multiplying it by 15, for all the outstanding shares presented. The weighted average number of shares was 21,522,342 in
2015.

The instruments that entitle their holders to a portion of the share capital on a deferred basis (BSAs, BSPCEs) are considered to be anti-dilutive
(2,119,109 instruments in 2013, 1,437,684 instruments in 2014 and 2,033,768 instruments in 2015). These instruments are presented in detail in Note 17. Therefore, the diluted earnings per share are identical to the basic earnings per share.



|                                                       |  |                                 |            |   |      |  |            |      |  |  |            |  
|------------------------------------------------------ |  | ------------------------------- | ---------- | - | ---- |  | ---------- | ---- |  |  | ---------- | -
|                                                       |  | December 31,                    |           
|                                                       |  | 2013                            |            |   | 2014 |  |            | 2015 | 
|                                                       |  | (Amounts in thousands of Euros) |           
|Net income of the reporting period                     |  |                                 | (19,306    | ) |      |  | (24,012    | )    |  |  | (44,674    | )
|Adjusted weighted average number of outstanding shares |  |                                 | 13,604,687 |   |      |  | 16,086,247 |      |  |  | 21,522,342 |  
|Basic / Diluted earnings per share (/share)           |  |                                 | (1.42      | ) |      |  | (1.49      | )    |  |  | (2.08      | )

Note 23: Management of Financial Risks

The principal financial instruments of the Company are comprised of financial assets, cash, and investment securities. The purpose of managing these
instruments is to allow the business activities of the Company to be financed. It is not the Companys policy to subscribe to financial instruments for speculative purposes. The Company does not utilize derivatives.



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##### Table of Contents

The principal risks to which the Company is exposed are liquidity risk, interest rate risk and credit risk.

Liquidity Risk

The Company could need to
strengthen its shareholders equity or rely on additional financing in order to ensure its development.

Since it was formed, the Company has
financed its growth by reinforcing its shareholders equity through a succession of increases in the share capital, obtaining public assistance in support of innovation, and reimbursements of Research Tax Credit claims, but has never utilized
bank loans. Therefore, the Company is not exposed to a liquidity risk resulting from the implementation of any early repayment clauses in loan agreements for such borrowings.

As of this date, the Company believes that it is not exposed to any short-term liquidity risk considering the cash and cash equivalents available as of
December 31, 2015, that is, 323 thousand.

Significant research and development efforts and expenditures related to clinical studies have been
initiated since the start-up of the Companys business, which has thus far generated negative operating cash flows.

The Company will continue to
have significant financing requirements in the future for the development of its technology, the continuation of its clinical development program, and the equipment for its own pharmaceutical laboratory, as well as for the production and marketing
of its products in the future. It is possible that the company will find itself unable to self-finance its growth, which would compel it to seek other sources of financing, particularly through new increases in share capital.

The level of the financing requirements of the Company and how they are phased out over time depend on factors that are largely beyond the control of the
Company such as:



| |  |  | higher costs and slower progress than anticipated for its research and development and clinical studies programs;
| | - |  | -----------------------------------------------------------------------------------------------------------------



| |  |  | the costs of preparing, filing, defending, and maintaining its patents and other intellectual property rights;
| | - |  | --------------------------------------------------------------------------------------------------------------



| |  |  | higher costs and longer time periods than anticipated for obtaining the regulatory authorizations for the marketing of its products as well as for gaining access to insurance reimbursement for them, including the time
required to prepare the applications to the competent authorities;
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | costs for responding to changes in the Viaskin® technology and for conducting the manufacturing and marketing on some or all of its products; and
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | new opportunities to develop new products or to acquire technologies, products, or companies.
| | - |  | ---------------------------------------------------------------------------------------------

It is possible
that the Company will be unable to obtain additional capital when it needs it, or that such capital may not be available on financial terms that are acceptable to the Company. If the necessary funds are not available, the Company could have to:



| |  |  | delay, reduce, or eliminate the number or the scope of its pre-clinical and clinical trials;
| | - |  | --------------------------------------------------------------------------------------------



| |  |  | grant licenses to its technologies to partners or third parties; or
| | - |  | -------------------------------------------------------------------



| |  |  | conclude new collaboration agreements on terms less favorable to it than those that it could have obtained in a different context.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------

In addition, to the extent that the Company raises capital by issuing new shares, the investment of its shareholders could be diluted. Furthermore, financing
by debt, to the extent that it is available, could also include restrictive conditions for the Company and its shareholders.

The occurrence of one or
more of these risks could have a material adverse effect on the Company, its business, its financial position, its earnings, its development, and its prospects.

Interest Rate Risk

The Companys exposure to
interest-rate risk primarily involves investment securities. These are composed of money market funds and time deposit accounts. Changes in interest rates have a direct impact on the rate of return on these investments and the cash flows generated.

The Company has no variable rate debt. The repayment flows of its debts are not subject to interest rate risk.

The repayment of the conditional advances may vary depending on whether or not objectives are attained. The change in the flows of the anticipated repayments
is treated in the income statement (Note 3.10).



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##### Table of Contents

As of this date, the Company has not contracted borrowings from credit institutions and, therefore, has only very
low exposure to interest rate risk.

Credit Risk

The credit risk related to the cash, the cash equivalents, and the current financial instruments is not significant in light of the quality of the
co-contracting financial institutions.

Fair Value

The fair value of financial instruments traded on an active market, such as the securities available for sale, is based on the market rate as of the closing
date. The market prices used for the financial assets owned by the Company are the bid prices in effect on the market as of the valuation date.

The
nominal value, less the provisions for depreciation, of the accounts receivable and current debts, is presumed to approximate the fair value of those items.

Foreign Exchange Risk

The Company is exposed to a
very insignificant foreign exchange risk inherent in some of its supplies obtained in the United States, which have been invoiced in US dollars. As of this date, the company does not make sales revenue in dollars or in any other currency other than
the euro; the Company does not receive any full or partial mechanical endorsement. The exposure to currencies other than the U.S. dollar is negligible.

For the fiscal years 2014 and 2015, less than 7% of the purchases and other external expenses had been made in U.S. dollars, generating a net annual foreign
exchange gain of 79 thousand in 2015 in comparison with a net loss of 24 thousand in 2014.

In light of these insignificant amounts,
the Company has not adopted, at this stage, a hedging mechanism in order to protect its business activity against fluctuations in exchange rates. The Company cannot rule out the possibility that a significant increase in its business, particularly
in the United States, may result in greater exposure to exchange rate risk and should thus consider adopting an appropriate policy for hedging against these risks.

Note 24: Events After the Close of the Fiscal Year

No
event occurred between the closing date and the date of the Board of Directors that change or make necessary a mention in the Notes to the consolidated accounts of DBV Technologies by not having been taken into consideration.



F-52



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##### Table of Contents

SIGNATURES

The registrant hereby certifies that it meets all of the requirements for filing on Form 20-F and that it has duly caused and authorized the undersigned to
sign this annual report on its behalf.



DBV Technologies S.A./s/ Dr. Pierre-Henri BenhamouBy:

Dr. Pierre-Henri BenhamouTitle:

Chief Executive Officer (Principal
Executive Officer)


Date: April 28, 2016



---

##### Table of Contents

EXHIBIT INDEX



|        |  |                                                                                                                                                                                              |  |                           |  |             |  |         |  |          
|------- |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |  | ------------------------- |  | ----------- |  | ------- |  | ---------
|        |  |                                                                                                                                                                                              |  | Incorporated by
Reference
|Exhibit |  | Description                                                                                                                                                                                  |  | Schedule/
Form            |  | File
Number |  | Exhibit |  | File
Date
|        |  |                                                                                                                                                                                              |  |                           | 
|1.1     |  | By-laws (statuts) of the registrant (English translation)                                                                                                                                    |  | Form F-1                  |  | 333-198870  |  | 3.1     |  | 09/22/14 
|        |  |                                                                                                                                                                                              |  |                           | 
|2.1     |  | Form of Deposit Agreement                                                                                                                                                                    |  | Form F-1/A                |  | 333-198870  |  | 4.1     |  | 10/15/14 
|        |  |                                                                                                                                                                                              |  |                           | 
|2.2     |  | Form of American Depositary Receipt                                                                                                                                                          |  | Form F-1/A                |  | 333-198870  |  | 4.2     |  | 10/15/14 
|        |  |                                                                                                                                                                                              |  |                           | 
|4.1     |  | Shareholders Agreement among the registrant and certain shareholders signatory thereto, dated March 9, 2012 (English translation)                                                           |  | Form F-1                  |  | 333-198870  |  | 4.3     |  | 09/22/14 
|        |  |                                                                                                                                                                                              |  |                           | 
|4.2     |  | Office Lease between the registrant and GENERALI VIE, dated March 3, 2015 (English translation)                                                                                              |  | Form 20-F                 |  | 001-36697   |  | 4.2     |  | 04/29/15 
|        |  |                                                                                                                                                                                              |  |                           | 
|4.3     |  | Commercial Lease between the registrant and SELECTINVEST 1, dated April 28, 2011 (English translation)                                                                                       |  | Form F-1                  |  | 333-198870  |  | 10.1    |  | 09/22/14 
|        |  |                                                                                                                                                                                              |  |                           | 
|4.4     |  | Assignment, Development and Co-Ownership Agreement among the registrant, LAssistance PubliqueHopitaux de Paris and Université Paris Descartes, dated January 7, 2009 (English translation) |  | Form F-1                  |  | 333-198870  |  | 10.2    |  | 09/22/14 
|        |  |                                                                                                                                                                                              |  |                           | 
|4.5    |  | Form of Indemnification Agreement between the registrant and each of its executive officers and directors                                                                                    |  | Form F-1/A                |  | 333-198870  |  | 10.3    |  | 10/15/14 
|        |  |                                                                                                                                                                                              |  |                           | 
|4.6    |  | 2013 and 2014 Share Option Plans (English translation)                                                                                                                                       |  | Form F-1                  |  | 333-198870  |  | 10.4    |  | 09/22/14 
|        |  |                                                                                                                                                                                              |  |                           | 
|4.7    |  | 2012, 2013 and 2014 Free Share Plans (English translation)                                                                                                                                   |  | Form F-1                  |  | 333-198870  |  | 10.5    |  | 09/22/14 
|        |  |                                                                                                                                                                                              |  |                           | 
|4.8    |  | Summary of BSA                                                                                                                                                                               |  | Form F-1                  |  | 333-198870  |  | 10.6    |  | 09/22/14 
|        |  |                                                                                                                                                                                              |  |                           | 
|4.9    |  | Summary of BSPCE                                                                                                                                                                             |  | Form F-1                  |  | 333-198870  |  | 10.7    |  | 09/22/14 
|        |  |                                                                                                                                                                                              |  |                           | 
|4.10#  |  | 2015 Share Option Plan (English translation)                                                                                                                                                 |  |                           |  |             |  |         |  |          
|        |  |                                                                                                                                                                                              |  |                           | 
|4.11#  |  | 2015 Free Share Plans (English translation)                                                                                                                                                  |  |                           |  |             |  |         |  |          
|        |  |                                                                                                                                                                                              |  |                           | 
|8.1#    |  | List of subsidiaries of the registrant                                                                                                                                                       |  |                           |  |             |  |         |  |          
|        |  |                                                                                                                                                                                              |  |                           | 
|12.1#   |  | Certification by the Principal Executive Officer pursuant to Securities Exchange Act Rules 13a-14(a) and 15d-14(a) as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002      |  |                           |  |             |  |         |  |          
|        |  |                                                                                                                                                                                              |  |                           | 
|12.2#   |  | Certification by the Principal Financial Officer pursuant to Securities Exchange Act Rules 13a-14(a) and 15d-14(a) as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002      |  |                           |  |             |  |         |  |          
|        |  |                                                                                                                                                                                              |  |                           | 
|13.1*   |  | Certification by the Principal Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002                                    |  |                           |  |             |  |         |  |          
|        |  |                                                                                                                                                                                              |  |                           | 
|13.2*   |  | Certification by the Principal Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002                                    |  |                           |  |             |  |         |  |          
|        |  |                                                                                                                                                                                              |  |                           | 
|15.1#   |  | Consent of Deloitte & Associés                                                                                                                                                               |  |                           |  |             |  |         |  |          



|# | Filed herewith.
|- | ---------------

|* | Furnished herewith.
|- | -------------------

| | Indicates a management contract or any compensatory plan, contract or arrangement.
|- | ----------------------------------------------------------------------------------