Form of Securities Purchase Agreement



 EXHIBIT 10.1 
 SECURITIES PURCHASE AGREEMENT 
 This Securities Purchase Agreement (this “Agreement”) is
dated as of December 14, 2007, by and among Cougar Biotechnology, Inc., a Delaware corporation (the “Company”), and each purchaser identified on the signature pages hereto (each, including its successors and assigns, a
“Purchaser” and collectively the “Purchasers”). 
 WHEREAS, subject to the terms and conditions set forth in this
Agreement and pursuant to Section 4(2) of the Securities Act of 1933, as amended (the “Securities Act”), and Rule 506 promulgated thereunder, the Company desires to issue and sell to each Purchaser, and each Purchaser, severally
and not jointly, desires to purchase from the Company, securities of the Company as more fully described in this Agreement. 
 NOW,
THEREFORE, IN CONSIDERATION of the mutual covenants contained in this Agreement, and for other good and valuable consideration the receipt and adequacy of which are hereby acknowledged, the Company and each Purchaser agree as follows: 
 ARTICLE I. 
 DEFINITIONS 
 1.1 Definitions. In addition to the terms defined elsewhere in this Agreement, for all purposes of this Agreement, the following terms have the meanings set forth
in this Section 1.1: 
 “Action” shall have the meaning ascribed to such term in Section 3.1(j). 
 “Affiliate” means any Person that, directly or indirectly through one or more intermediaries, controls or is controlled by or is under common
control with a Person as such terms are used in and construed under Rule 144 under the Securities Act. With respect to a Purchaser, any investment fund or managed account that is managed on a discretionary basis by the same investment manager
as such Purchaser will be deemed to be an Affiliate of such Purchaser. 
 “Business Day” means any day except Saturday, Sunday, any
day which shall be a federal legal holiday in the United States or any day on which banking institutions in the State of New York are authorized or required by law or other governmental action to close. 
 “Closing” means the closing of the purchase and sale of the Shares pursuant to Section 2.1. 
 “Closing Date” means the Trading Day when all of the Transaction Documents have been executed and delivered by the applicable parties thereto,
and all conditions precedent to (i) the Purchasers’ obligations to pay the Subscription Amount and (ii) the Company’s obligations to deliver the Shares have been satisfied or waived. 







 “Closing Price” means on any particular date (a) the last reported closing bid price per
share of Common Stock on such date on the Trading Market (as reported by Bloomberg L.P. at 4:15 p.m. (New York City time)), or (b) if there is no such price on such date, then the closing bid price on the Trading Market on the date nearest
preceding such date (as reported by Bloomberg L.P. at 4:15 p.m. (New York City time)), or (c) if the Common Stock is not then listed or quoted on the Trading Market and if prices for the Common Stock are then reported in the “pink
sheets” published by Pink Sheets LLC (or a similar organization or agency succeeding to its functions of reporting prices), the most recent bid price per share of the Common Stock so reported, or (d) if the shares of Common Stock are not
then publicly traded the fair market value of a share of Common Stock as determined by an independent appraiser mutually acceptable to the Company and the Purchasers of 67% of the then outstanding Shares. 
 “Commission” means the Securities and Exchange Commission. 
 “Common Stock” means the common stock of the Company, par value $0.0001 per share, and any other class of securities into which such securities may hereafter be reclassified or changed. 
 “Common Stock Equivalents” means any securities of the Company or the Subsidiaries which would entitle the holder thereof to acquire at any
time Common Stock, including, without limitation, any debt, preferred stock, rights, options, warrants, stock appreciation rights, restricted stock units or other instrument that is at any time convertible into or exercisable or exchangeable for, or
otherwise entitles the holder thereof to receive, Common Stock. 
 “Company Counsel” means Maslon Edelman Borman & Brand,
LLP, with offices located at 90 South Seventh Street, Suite 3300, Minneapolis, Minnesota 55402. 
 “Disclosure Schedules” means the
Disclosure Schedules of the Company delivered concurrently herewith. 
 “Effective Date” means the date that the Registration
Statement is first declared effective by the Commission. 
 “Equity Incentive Plan” means (i) any equity incentive, stock
option or similar plan and (ii) any other agreement, arrangement, understanding or other document pursuant to which the Company is obligated to grant or issue Common Stock or Common Stock Equivalents to current or former employees in connection
with their services to the Company, in each case adopted or approved by a majority of the non-employee members of the board of directors of the Company or a majority of the members of a committee of non-employee directors established. 
 “Evaluation Date” shall have the meaning ascribed to such term in Section 3.1(r). 
 “Exchange Act” means the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder. 
 “Fidelity Purchasers” mean Fidelity Mount Vernon Street Trust: Fidelity Growth Company Fund, Fidelity Contrafund: Fidelity Advisor New Insights
Fund, Fidelity Securities Fund: Fidelity OTC Portfolio, Fidelity Select Portfolios: Health Care Portfolio, Fidelity Central Investment Portfolios LLC: Fidelity Health Care Central Fund, Fidelity Advisor Series VII: Fidelity Advisor Health Care Fund,
and Variable Insurance Products Fund IV: Health Care Portfolio. 
 “GAAP” shall have the meaning ascribed to such term in
Section 3.1(h). 
  

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 “GP” means Goodwin Procter LLP with offices located as 53 State Street, Boston, Massachusetts
02109. 
 “Intellectual Property Rights” shall have the meaning ascribed to such term in Section 3.1(o). 
 “Legend Removal Date” shall have the meaning ascribed to such term in Section 4.1(c). 
 “Liens” means a lien, charge, security interest, encumbrance, right of first refusal, preemptive right or other restriction. 
 “Material Adverse Effect” shall have the meaning assigned to such term in Section 3.1(b). 
 “Material Permits” shall have the meaning ascribed to such term in Section 3.1(m). 
 “Per Share Purchase Price” equals $29.00 (Twenty Nine Dollars), subject to adjustment for reverse and forward stock splits, stock dividends,
stock combinations and other similar transactions of the Common Stock that occur after the date of this Agreement. 
 “Person”
means an individual or corporation, partnership, trust, incorporated or unincorporated association, joint venture, limited liability company, joint stock company, government (or an agency or subdivision thereof) or other entity of any kind.

 “Placement Agent” means Leerink Swann LLC. 
 “Proceeding” means an action, claim, suit, investigation or proceeding (including, without limitation, an investigation or partial proceeding, such as a deposition), whether commenced or threatened.

 “Purchaser Party” shall have the meaning ascribed to such term in Section 4.9. 
 “Registration Rights Agreement” means the Registration Rights Agreement, dated the date hereof, among the Company and the Purchasers, in the
form of Exhibit A attached hereto. 
 “Registration Statement” means a registration statement meeting the requirements
set forth in the Registration Rights Agreement and covering the resale by the Purchasers of all or part of the Shares. 
 “Regulation S” means Rules 901 through 905 (including the preliminary notes) promulgated by the Commission pursuant to the Securities Act, as such rules may be amended from time to time, or any similar rule or regulation
hereafter adopted by the Commission having substantially the same effect as such rules. 
 “Required Approvals” shall have the
meaning ascribed to such term in Section 3.1(e). 
  

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 “Rule 144” means Rule 144 promulgated by the Commission pursuant to the Securities
Act, as such rule may be amended from time to time, or any similar rule or regulation hereafter adopted by the Commission having substantially the same effect as such rule. 
 “SEC Reports” shall have the meaning ascribed to such term in Section 3.1(h). 
 “Securities Act” means the Securities Act of 1933, as amended, and the rules and regulations promulgated thereunder. 
 “Shares” means the shares of Common Stock issued or issuable to each Purchaser pursuant to this Agreement. 
 “Short Sales” means all “short sales” as defined in Rule 200 of Regulation SHO under the Exchange Act (but shall not be
deemed to include the location and/or reservation of borrowable shares of Common Stock). 
 “Subscription Amount” means, as to each
Purchaser, the aggregate amount to be paid for Shares purchased hereunder as specified below such Purchaser’s name on the signature page of this Agreement and next to the heading “Subscription Amount,” in United States dollars and in
immediately available funds. 
 “Subsidiary” means any subsidiary of the Company as set forth on Schedule 3.1(a). 

“Trading Day” means a day on which the Common Stock is traded on a Trading Market. 
 “Trading Market” means the following markets or exchanges on which the Common Stock is listed or quoted for trading on the date in question:
the American Stock Exchange, the Nasdaq Capital Market, the Nasdaq Global Market, the Nasdaq Global Select Market, the New York Stock Exchange or the OTC Bulletin Board. 
 “Transaction Documents” means this Agreement, the Registration Rights Agreement and any other documents or agreements executed in connection with the transactions contemplated hereunder. 
 “Transfer Agent” means Wells Fargo Shareowner Services, with a mailing address of 161 North Concord Exchange, South St. Paul, Minnesota 55075
and a facsimile number of (651) 450-4078, and any successor transfer agent of the Company. 
 “U.S.” means the United States
of America. 
 ARTICLE II. 
 PURCHASE AND SALE 
 2.1 Closing. On the Closing Date, upon the terms and subject to the conditions set forth herein, substantially
concurrent with the execution and delivery of this Agreement by the parties hereto, the Company agrees to sell, and each Purchaser, severally and not jointly, agrees to purchase, at the Per Share Purchase Price, the number of Shares indicated on its
signature page 

  

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hereto. The Company and each Purchaser shall deliver the other items set forth in Section 2.2 deliverable at the Closing. Upon satisfaction of the
conditions set forth in Sections 2.2 and 2.3, the Closing shall occur at the offices of GP or such other location as the parties shall mutually agree. 
 2.2 Deliveries. 
 (a) On or prior to the Closing Date, the Company shall deliver or cause to be delivered to each Purchaser
the following: 
 (i) this Agreement duly executed by the Company; 
 (ii) a legal opinion of Company Counsel, in the form of Exhibit B attached hereto; 
 (iii) a copy of the irrevocable instructions to the Transfer Agent instructing the Transfer Agent to deliver, on an expedited basis, a
certificate in accordance with Section 2.2(b) evidencing the number of its respective Shares, registered in the name of such Purchaser; 
 (iv) the Registration Rights Agreement duly executed by the Company; and 
 (v) a certificate,
dated as of the Closing Date and signed by its Chief Executive Officer or its Chief Financial Officer, certifying to the fulfillment of the conditions specified in Sections 2.3(b)(i) and (ii). 
 (b) Prior to the Closing Date, the Company shall deliver to the custodian for each of the Purchasers a certificate evidencing the number of its
respective shares, registered in the names provided by such Purchasers prior to the Closing. 
 (c) On or prior to the Closing Date, each
Purchaser shall deliver or cause to be delivered to the Company the following: 
 (i) this Agreement duly executed by such
Purchaser; 
 (ii) such Purchaser’s Subscription Amount by wire transfer to the account as specified in writing by the
Company; and 
 (iii) the Registration Rights Agreement duly executed by such Purchaser. 
 2.3 Closing Conditions. 
 (a) The obligations of the
Company hereunder in connection with the Closing are subject to the following conditions being met: 
 (i) the accuracy in all
material respects of the representations and warranties of the Purchasers contained herein, except such representations and warranties that are qualified by materiality or Material Adverse Effect which must be true and correct in all 

  

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respects, when made and on the Closing Date (except for representations and warranties that speak as of a specific date which shall be accurate as of such
date); 
 (ii) all obligations, covenants and agreements of the Purchasers required to be performed at or prior to the Closing
Date shall have been performed; and 
 (iii) the delivery by the Purchasers of the items set forth in Section 2.2(c) of
this Agreement. 
 (iv) the Company receives funds in an aggregate amount of at least $87,000,000 (Eighty Seven Million
Dollars) to purchase an aggregate of at least 3,000,000 (Three Million) Shares on the Closing Date. 
 (b) The respective obligations
of each Purchaser hereunder in connection with the Closing are subject to the following conditions being met: 
 (i) the
accuracy in all material respects of the representations and warranties of the Company contained herein, except such representations and warranties that are qualified by materiality or Material Adverse Effect which must be true and correct in all
respects, when made and on the Closing Date (except for representations and warranties that speak as of a specific date which shall be accurate as of such date); 
 (ii) all obligations, covenants and agreements of the Company required to be performed at or prior to the Closing Date shall have been
performed; 
 (iii) the delivery by the Company of the items set forth in Section 2.2(a) and (b) of this Agreement;

 (iv) there shall have been no Material Adverse Effect with respect to the Company since the date hereof; 
 (v) the Company receives funds in an aggregate amount of at least $87,000,000 (Eighty Seven Million Dollars) to purchase an aggregate of
at least 3,000,000 (Three Million) Shares on the Closing Date; and 
 (vi) from the date hereof to the Closing Date, trading
in the Common Stock shall not have been suspended by the Commission or the Company’s principal Trading Market (except for any suspension of trading of limited duration agreed to by the Company, which suspension shall be terminated prior to the
Closing), and, at any time prior to the Closing Date, trading in securities generally as reported by Bloomberg L.P. shall not have been suspended or limited, or minimum prices shall not have been established on securities whose trades are reported
by such service, or on any Trading Market, nor shall a banking moratorium have been declared either by the United States or New York State authorities nor shall there have occurred any material outbreak or escalation of hostilities or other national
or international calamity of such magnitude in its effect on, or any material adverse change in, any financial market which, in each case, in the reasonable judgment of each Purchaser, makes it impracticable or inadvisable to purchase the Shares at
the Closing. 
  

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 ARTICLE III. 
 REPRESENTATIONS AND WARRANTIES 
 3.1 Representations and Warranties of the Company. Except as set forth in the
Disclosure Schedules, which Disclosure Schedules shall be deemed a part hereof and shall qualify any representation or otherwise made herein to the extent of the disclosure contained in the corresponding section of the Disclosure Schedules, the
Company hereby makes the following representations and warranties to each Purchaser: 
 (a) Subsidiaries. All of the direct and
indirect subsidiaries of the Company are set forth on Schedule 3.1(a). The Company owns, directly or indirectly, all of the capital stock or other equity interests of each Subsidiary free and clear of any Liens, and all of the issued and
outstanding shares of capital stock of each Subsidiary are validly issued and are fully paid, non-assessable and free of preemptive and similar rights to subscribe for or purchase securities. If the Company has no subsidiaries, then all other
references to the Subsidiaries or any of them in the Transaction Documents shall be disregarded. 
 (b) Organization and
Qualification. The Company and each of the Subsidiaries is an entity duly incorporated or otherwise organized, validly existing and in good standing under the laws of the jurisdiction of its incorporation or organization (as applicable), with
the requisite power and authority to own and use its properties and assets and to carry on its business as currently conducted. Neither the Company nor any Subsidiary is in violation or default of any of the provisions of its respective certificate
or articles of incorporation, bylaws or other organizational or charter documents. Each of the Company and the Subsidiaries is duly qualified to conduct business and is in good standing as a foreign corporation or other entity in each jurisdiction
in which the nature of the business conducted or property owned by it makes such qualification necessary, except where the failure to be so qualified or in good standing, as the case may be, would not have or reasonably be expected to result in
(i) a material adverse effect on the legality, validity or enforceability of any Transaction Document, (ii) a material adverse effect on the results of operations, assets, business, prospects or condition (financial or otherwise) of the
Company and the Subsidiaries, taken as a whole, or (iii) a material adverse effect on the Company’s ability to perform in any material respect on a timely basis its obligations under any Transaction Document (any of (i), (ii) or
(iii), a “Material Adverse Effect”) and no Proceeding has been instituted in any such jurisdiction revoking, limiting or curtailing or seeking to revoke, limit or curtail such power and authority or qualification. 
 (c) Authorization; Enforcement. The Company has the requisite corporate power and authority to enter into and to consummate the transactions
contemplated by each of the Transaction Documents and otherwise to carry out its obligations hereunder and thereunder. The execution and delivery of each of the Transaction Documents by the Company and the consummation by it of the transactions
contemplated hereby and thereby have been duly authorized by all necessary action on the part of the Company and no further action is required by the Company, its board of directors or its stockholders in connection therewith other than in
connection with the Required Approvals. Each Transaction Document has been (or upon delivery will have been) duly executed by the Company and, when delivered in accordance with the terms hereof and thereof, will constitute the valid and binding
obligation of the Company 

  

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enforceable against the Company in accordance with its terms except (i) as limited by general equitable principles and applicable bankruptcy,
insolvency, reorganization, moratorium and other laws of general application affecting enforcement of creditors’ rights generally, (ii) as limited by laws relating to the availability of specific performance, injunctive relief or other
equitable remedies and (iii) insofar as indemnification and contribution provisions may be limited by applicable law. 
 (d) No
Conflicts. The execution, delivery and performance of the Transaction Documents by the Company, the issuance and sale of the Shares and the consummation by the Company of the other transactions contemplated hereby and thereby do not and will not
(i) conflict with or violate any provision of the Company’s or any Subsidiary’s certificate or articles of incorporation, bylaws or other organizational or charter documents, or (ii) conflict with, or constitute a default (or an
event that with notice or lapse of time or both would become a default) under, result in the creation of any Lien upon any of the properties or assets of the Company or any Subsidiary, or give to others any rights of termination, amendment,
acceleration or cancellation (with or without notice, lapse of time or both) of, any agreement, credit facility, debt or other instrument (evidencing a Company or Subsidiary debt or otherwise) or other understanding to which the Company or any
Subsidiary is a party or by which any property or asset of the Company or any Subsidiary is bound or affected, or (iii) subject to the Required Approvals, conflict with or result in a violation of any law, rule, regulation, order, judgment,
injunction, decree or other restriction of any court or governmental authority to which the Company or a Subsidiary is subject (including federal and state securities laws and regulations), or by which any property or asset of the Company or a
Subsidiary is bound or affected; except in the case of each of clauses (ii) and (iii), such as would not have or reasonably be expected to result in a Material Adverse Effect. 
 (e) Filings, Consents and Approvals. The Company is not required to obtain any consent, waiver, authorization or order of, give any notice to, or
make any filing or registration with, any court or other federal, state, local or other governmental authority or other Person in connection with the execution, delivery and performance by the Company of the Transaction Documents, other than
(i) filings required pursuant to Section 4.4 of this Agreement, (ii) the filing with, and the declaration of effectiveness by, the Commission of the Registration Statement, (iii) application(s) and notification(s) to each
applicable Trading Market for the issuance and sale of the Shares and the listing of the Shares for trading or quotation, as the case may be, thereon in the time and manner required thereby, and (iv) the filing of Form D with the
Commission and such filings as are required to be made under applicable state securities laws (collectively, the “Required Approvals”). 
 (f) Issuance of the Shares. The Shares are duly authorized and, when issued and paid for in accordance with the applicable Transaction Documents, will be duly and validly issued, fully paid and nonassessable, free and clear of all
Liens imposed by the Company other than restrictions on transfer provided for in the Transaction Documents. The Company has reserved from its duly authorized capital stock the maximum number of shares of Common Stock issuable pursuant to this
Agreement. 
 (g) Capitalization. The number of shares and type of all authorized, issued and outstanding capital stock, options and
other securities of the Company (whether or not presently 

  

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convertible into or exercisable or exchangeable for shares of capital stock of the Company) has been set forth in the SEC Reports and has changed since the
date of such SEC Reports only to reflect stock option and warrant exercises that do not, individually or in the aggregate, have a material affect on the issued and outstanding capital stock, options and other securities. No Person has any right of
first refusal, preemptive right, right of participation, or any similar right to participate in the transactions contemplated by the Transaction Documents. Except as set forth on Schedule 3.1(g), the SEC Reports or as a result of the purchase
and sale of the Shares, there are no outstanding options, warrants, scrip rights to subscribe to, calls or commitments of any character whatsoever relating to, or securities, rights or obligations convertible into or exercisable or exchangeable for,
or giving any Person any right to subscribe for or acquire, any shares of Common Stock, or contracts, commitments, understandings or arrangements by which the Company or any Subsidiary is or may become bound to issue additional shares of Common
Stock or Common Stock Equivalents. The issuance and sale of the Shares will not obligate the Company to issue shares of Common Stock or other securities to any Person (other than the Purchasers) and will not result in a right of any holder of
Company securities to adjust the exercise, conversion, exchange or reset price under any of such securities. All of the outstanding shares of capital stock of the Company are validly issued, fully paid and nonassessable, have been issued in
compliance with all federal and state securities laws, and none of such outstanding shares was issued in violation of any preemptive rights or similar rights to subscribe for or purchase securities. Except for the Required Approvals, no further
approval or authorization of any stockholder, the Board of Directors of the Company or others is required for the issuance and sale of the Shares. There are no stockholders agreements, voting agreements or other similar agreements with respect to
the Company’s capital stock to which the Company is a party or, to the knowledge of the Company, between or among any of the Company’s stockholders. 
 (h) SEC Reports; Financial Statements. Since September 30, 2006, the Company has filed all reports, schedules, forms, statements and other documents required to be filed by the Company under the Securities
Act and the Exchange Act, including pursuant to Section 13(a) or 15(d) thereof (the foregoing materials, including the exhibits thereto and documents incorporated by reference therein, being collectively referred to herein as the “SEC
Reports”) on a timely basis or has received a valid extension of such time of filing and has filed any such SEC Reports prior to the expiration of any such extension. As of their respective dates, the SEC Reports complied in all material
respects with the requirements of the Securities Act and the Exchange Act, as applicable, and none of the SEC Reports, when filed, contained any untrue statement of a material fact or omitted to state a material fact required to be stated therein or
necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading. Except as previously disclosed in the SEC Reports, as of the date hereof, the Company is not aware of any event
occurring on or prior to the Closing Date (other than the transactions contemplated by the Transaction Documents) that requires the filing of a Form 8-K after the Closing. The financial statements of the Company included in the SEC Reports comply in
all material respects with applicable accounting requirements and the rules and regulations of the Commission with respect thereto as in effect at the time of filing. Such financial statements have been prepared in accordance with United States
generally accepted accounting principles applied on a consistent basis during the periods involved (“GAAP”), except as may be otherwise specified in such financial statements or the notes thereto and except that unaudited financial
statements may not contain all footnotes required by GAAP, and fairly present in all material respects the financial position of the Company and its consolidated subsidiaries as of and for the 

  

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dates thereof and the results of operations and cash flows for the periods then ended, subject, in the case of unaudited statements, to normal, immaterial,
year-end audit adjustments. All material agreements to which the Company is a party or to which the property or assets of the Company are subject are included as part of or specifically identified in the SEC Reports. 
 (i) Material Changes; Undisclosed Events, Liabilities or Developments. Since the date of the latest audited financial statements included within
the SEC Reports, except as specifically disclosed in a subsequent SEC Report filed prior to the date hereof, (i) there has been no event, occurrence or development that has had or that could reasonably be expected to result in a Material
Adverse Effect, (ii) the Company has not incurred any liabilities (contingent or otherwise) other than (A) trade payables and accrued expenses incurred in the ordinary course of business consistent with past practice and
(B) liabilities not required to be reflected in the Company’s financial statements pursuant to GAAP or disclosed in filings made with the Commission, (iii) the Company has not altered its method of accounting, (iv) the Company
has not declared or made any dividend or distribution of cash or other property to its stockholders or purchased, redeemed or made any agreements to purchase or redeem any shares of its capital stock and (v) the Company has not issued any
equity securities to any executive officer, director or Affiliate, except pursuant to an Equity Incentive Plan. The Company does not have pending before the Commission any request for confidential treatment of information. Except for the issuance of
the Shares contemplated by this Agreement, no event, liability or development has occurred or exists with respect to the Company or its Subsidiaries or their respective business, properties, operations or financial condition, that would be required
to be disclosed by the Company under applicable securities laws at the time this representation is made that has not been publicly disclosed at least 1 Trading Day prior to the date that this representation is made. 
 (j) Litigation. There is no action, suit, inquiry, notice of violation, proceeding (including any partial proceeding such as a deposition) or
investigation pending or, to the knowledge of the Company, threatened against or affecting the Company, any Subsidiary or any of their respective properties before or by any court, arbitrator, governmental or administrative agency or regulatory
authority (federal, state, county, local or foreign) (collectively, an “Action”) which (i) adversely affects or challenges the legality, validity or enforceability of any of the Transaction Documents or the Shares or (ii) could,
if there were an unfavorable decision, have or reasonably be expected to result in a Material Adverse Effect. Neither the Company nor any Subsidiary, nor any director or executive officer thereof, is or has been the subject of any Action involving a
claim of violation of or liability under federal or state securities laws or a claim of breach of fiduciary duty. There has not been, and to the knowledge of the Company, there is not pending or contemplated, any investigation by the Commission
involving the Company or any current or former director or executive officer of the Company. The Commission has not issued any stop order or other order suspending the effectiveness of any registration statement filed by the Company or any
Subsidiary under the Exchange Act or the Securities Act. 
 (k) Labor Relations. No material labor dispute exists or, to the knowledge
of the Company, is imminent with respect to any of the employees of the Company which could reasonably be expected to result in a Material Adverse Effect. None of the Company’s or its Subsidiaries’ employees is a member of a union that
relates to such employee’s relationship with the Company, and neither the Company or any of its Subsidiaries is a party to a collective bargaining agreement, and the Company and its Subsidiaries believe that their relationships with 

  

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their employees are good. No executive officer, to the knowledge of the Company, is, or is now expected to be, in violation of any material term of any
employment contract, confidentiality, disclosure or proprietary information agreement or non-competition agreement, or any other contract or agreement or any restrictive covenant, and the continued employment of each such executive officer does not
subject the Company or any of its Subsidiaries to any liability with respect to any of the foregoing matters. The Company and its Subsidiaries are in compliance with all U.S. federal, state, local and foreign laws and regulations relating to
employment and employment practices, terms and conditions of employment and wages and hours, except where the failure to be in compliance could not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

 (l) Compliance. Neither the Company nor any Subsidiary (i) is in default under or in violation of (and no event has occurred
that has not been waived that, with notice or lapse of time or both, would result in a default by the Company or any Subsidiary under), nor has the Company or any Subsidiary received notice of a claim that it is in default under or that it is in
violation of, any indenture, loan or credit agreement or any other agreement or instrument to which it is a party or by which it or any of its properties is bound (whether or not such default or violation has been waived), (ii) is in violation
of any order of any court, arbitrator or governmental body, or (iii) is or has been in violation of any statute, rule or regulation of any governmental authority, including without limitation all foreign, federal, state and local laws
applicable to its business and all such laws that affect the environment, except in each case as would not have or reasonably be expected to result in a Material Adverse Effect. 
 (m) Regulatory Permits. The Company and the Subsidiaries possess all certificates, authorizations and permits issued by the appropriate federal,
state, local or foreign regulatory authorities necessary to conduct their respective businesses as described in the SEC Reports, except where the failure to possess such permits could not have or reasonably be expected to result in a Material
Adverse Effect (“Material Permits”), and neither the Company nor any Subsidiary has received any notice of proceedings relating to the revocation or modification of any Material Permit. 
 (n) Title to Assets. The Company and the Subsidiaries have good and marketable title in all personal property owned by them that is material to
the business of the Company and the Subsidiaries, in each case free and clear of all Liens, except for Liens (i) that do not materially affect the value of such property and (ii) that do not materially interfere with the use made and
proposed to be made of such property by the Company and the Subsidiaries and Liens for the payment of federal, state or other taxes, the payment of which is neither delinquent nor subject to penalties. Any real property and facilities held under
lease by the Company and the Subsidiaries are held by them under valid, subsisting and enforceable leases with which the Company and the Subsidiaries are in compliance in all material respects. The Company does not own any real property. 

(o) Patents and Trademarks. The Company and the Subsidiaries have, or have rights to use, all patents, patent applications, trademarks,
trademark applications, service marks, trade names, trade secrets, inventions, copyrights, licenses and other intellectual property rights and similar rights necessary or material for use in connection with their respective businesses as described
in the SEC Reports (collectively, the “Intellectual Property Rights”). To the 

  

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Company’s knowledge, the conduct of the Company’s and any Subsidiary’s businesses will not conflict in any material respects with any
intellectual property rights of others. Neither the Company nor any Subsidiary has received a notice (written or otherwise) that the Intellectual Property Rights used by the Company or any Subsidiary violates or infringes upon the rights of any
Person. To the knowledge of the Company, all Intellectual Property Rights are enforceable and valid and there is no existing infringement by another Person of any of the Intellectual Property Rights. Except as described in the SEC Reports, there are
no outstanding options, licenses or agreements of any kind relating to the foregoing Intellectual Property Rights, nor is the Company bound by or a party to any options, licenses or agreements of any kind with respect to the Intellectual Property
Rights. The Company and its Subsidiaries have taken reasonable security measures to protect the secrecy, confidentiality and value of all of their intellectual properties. 
 (p) Insurance. The Company and the Subsidiaries are insured by insurers of recognized financial responsibility against such losses and risks and
in such amounts as are customary in the businesses in which the Company and the Subsidiaries are engaged. The Company carries directors and officers insurance coverage in the amount set forth on Schedule 3.1(p). Neither the Company nor any
Subsidiary has any reason to believe that it will not be able to renew its existing insurance coverage as and when such coverage expires or to obtain similar coverage from similar insurers as may be necessary to continue its business without a
significant increase in cost. 
 (q) Transactions With Affiliates and Employees. Except as set forth in the SEC Reports or on Schedule
3.1(q), none of the executive officers or directors of the Company and, to the knowledge of the Company, none of the employees of the Company is presently a party to any transaction with the Company or any Subsidiary (other than for services as
employees, executive officers and directors), including any contract, agreement or other arrangement providing for the furnishing of services to or by, providing for rental of real or personal property to or from, or otherwise requiring payments to
or from any executive officer, director or such employee or, to the knowledge of the Company, any entity in which any officer, director, or any such employee has a substantial interest or is an officer, director, trustee or partner, in each case in
excess of $120,000 other than for (i) payment of salary or consulting fees for services rendered, (ii) reimbursement for expenses incurred on behalf of the Company and (iii) other employee benefits, including stock option agreements
and restricted stock unit agreements under any Equity Incentive Plan. 
 (r) Sarbanes-Oxley; Internal Accounting Controls. The Company
is in material compliance with all provisions of the Sarbanes-Oxley Act of 2002 which are applicable to it as of the Closing Date. The Company and the Subsidiaries maintain a system of internal accounting controls sufficient to provide reasonable
assurance that (i) transactions are executed in accordance with management’s general or specific authorizations, (ii) transactions are recorded as necessary to permit preparation of financial statements in conformity with GAAP and to
maintain asset accountability, (iii) access to assets is permitted only in accordance with management’s general or specific authorization, and (iv) the recorded accountability for assets is compared with the existing assets at
reasonable intervals and appropriate action is taken with respect to any differences. The Company has established disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the Company and designed such


  

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disclosure controls and procedures to ensure that information required to be disclosed by the Company in the reports it files or submits under the Exchange
Act is recorded, processed, summarized and reported, within the time periods specified in the Commission’s rules and forms. The Company’s certifying officers have evaluated the effectiveness of the Company’s disclosure controls and
procedures as of the end of the period covered by the Company’s most recently filed periodic report under the Exchange Act (such date, the “Evaluation Date”). The Company presented in its most recently filed periodic report under the
Exchange Act the conclusions of the certifying officers about the effectiveness of the disclosure controls and procedures based on their evaluations as of the Evaluation Date. Since the Evaluation Date, there have been no changes in the
Company’s internal control over financial reporting (as such term is defined in the Exchange Act) that has materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting.

 (s) Certain Fees. Except as set forth on Schedule 3.1(s), no brokerage or finder’s fees or commissions are or will be
payable by the Company to any broker, financial advisor or consultant, finder, placement agent, investment banker, bank or other Person with respect to the transactions contemplated by the Transaction Documents, other than to the Placement Agent
with respect to the offer and sale of the Shares (which placement agent fees are being paid by the Company). The Purchasers shall have no obligation with respect to any fees or with respect to any claims made by or on behalf of other Persons for
fees of a type contemplated in this Section that may be due in connection with the transactions contemplated by the Transaction Documents. 
 (t) Private Placement. Assuming the accuracy of the Purchasers’ representations and warranties set forth in Section 3.2, no registration under the Securities Act is required for the offer and sale of the Shares by the
Company to the Purchasers as contemplated hereby. The issuance and sale of the Shares hereunder does not contravene the rules and regulations of the Trading Market. 
 (u) Investment Company. The Company is not, and is not an Affiliate of, and immediately after receipt of payment for the Shares, will not be or be an Affiliate of, an “investment company” within the
meaning of the Investment Company Act of 1940, as amended. 
 (v) Registration Rights. No Person has any right to cause the Company to
effect the registration under the Securities Act of any securities of the Company, other than with respect to the Company’s continuing obligations to maintain the effectiveness of registration statements filed prior to the date hereof.

 (w) Listing and Maintenance Requirements. The Common Stock is registered pursuant to Section 12(b) or 12(g) of the Exchange
Act, and the Company has taken no action designed to, or which to its knowledge is likely to have the effect of, terminating the registration of the Common Stock under the Exchange Act nor has the Company received any notification that the
Commission is contemplating terminating such registration. The Company has not, in the 12 months preceding the date hereof, received notice from any Trading Market on which the Common Stock is or has been listed or quoted to the effect that the
Company is not in compliance with the listing or maintenance requirements of such Trading Market. The Company 

  

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is, and has no reason to believe that it will not in the foreseeable future continue to be, in compliance with all such listing and maintenance requirements.

 (x) Application of Takeover Protections. The Company and its board of directors have taken all necessary action, if any, in order
to render inapplicable any control share acquisition, business combination, poison pill (including any distribution under a rights agreement) or other similar anti-takeover provision under the Company’s certificate or articles of incorporation,
bylaws (or other organizational or charter documents) or the laws of its state of incorporation that is or could become applicable to the Purchasers as a result of the Purchasers and the Company fulfilling their obligations or exercising their
rights under the Transaction Documents, including without limitation as a result of the Company’s issuance of the Shares and the Purchasers’ ownership of the Shares. 
 (y) Disclosure. Except with respect to the material terms and conditions of the transactions contemplated by the Transaction Documents, the
Company confirms that neither it nor any other Person acting on its behalf has provided any of the Purchasers or their agents or counsel with any information that it believes constitutes or might constitute material, non-public information. The
Company understands and confirms that the Purchasers will rely on the foregoing representation in effecting transactions in securities of the Company. All disclosure furnished by or on behalf of the Company to the Purchasers regarding the Company,
its business and the transactions contemplated hereby, including the Disclosure Schedules to this Agreement, is true and correct and does not contain any untrue statement of a material fact or omit to state any material fact necessary in order to
make the statements made therein, in light of the circumstances under which they were made, not misleading. The press releases disseminated by the Company during the twelve months preceding the date of this Agreement taken as a whole do not contain
any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary in order to make the statements, in light of the circumstances under which they were made and when made, not misleading. The Company
acknowledges and agrees that no Purchaser makes or has made any representations or warranties with respect to the transactions contemplated hereby other than those specifically set forth in Section 3.2 hereof. 
 (z) No Integrated Offering. Assuming the accuracy of the Purchasers’ representations and warranties set forth in Section 3.2, neither
the Company, nor any of its Affiliates, nor any Person acting on its or their behalf has, directly or indirectly, made any offers or sales of any security or solicited any offers to buy any security, under circumstances that would cause this
offering of the Shares to be integrated or aggregated with prior offerings by the Company for purposes of the Securities Act or any applicable shareholder approval provisions of any Trading Market on which any of the securities of the Company are
listed or designated. 
 (aa) Sufficiency of Cash. Based on the financial condition of the Company as of the Closing Date, after
giving effect to the receipt by the Company of the proceeds from the sale of the Shares hereunder, the Company reasonably expects to have sufficient cash on hand to pay all of its currently foreseeable expenses for at least the next 12 months.

 (bb) Tax Status. Except for matters that would not, individually or in the aggregate, have or reasonably be expected to result in a
Material Adverse Effect, the Company and each Subsidiary has accurately and timely filed all federal, state and foreign income and franchise tax 

  

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returns, reports and declarations required by any jurisdiction to which it is subject, and has paid or accrued all taxes shown as due thereon, and there is
no tax deficiency in any material amount which has been asserted or threatened against the Company or any Subsidiary. 
 (cc) No General
Solicitation. Neither the Company nor any person acting on behalf of the Company has offered or sold any of the Shares by any form of general solicitation or general advertising. The Company has offered the Shares for sale only to the Purchasers
and certain other “accredited investors” within the meaning of Rule 501 under the Securities Act. 
 (dd) Foreign Corrupt
Practices. Neither the Company, nor to the knowledge of the Company, any agent or other person acting on behalf of the Company, has (i) directly or indirectly, used any funds for unlawful contributions, gifts, entertainment or other
unlawful expenses related to foreign or domestic political activity, (ii) made any unlawful payment to foreign or domestic government officials or employees or to any foreign or domestic political parties or campaigns from corporate funds,
(iii) failed to disclose fully any contribution made by the Company (or made by any person acting on its behalf of which the Company is aware) which is in violation of law, or (iv) violated in any material respect any provision of the
Foreign Corrupt Practices Act of 1977, as amended. 
 (ee) No Disagreements with Accountants. There are no disagreements of any kind
presently existing, or reasonably anticipated by the Company to arise, between the Company and the independent registered public accounting firm formerly or presently employed by the Company and the Company is current with respect to any fees owed
to such accounting firm. 
 (ff) Acknowledgment Regarding Purchasers’ Purchase of Shares. The Company acknowledges and agrees
that each of the Purchasers is acting solely in the capacity of an arm’s length purchaser with respect to the Transaction Documents and the transactions contemplated thereby. The Company further acknowledges that no Purchaser is acting as a
financial advisor or fiduciary of the Company (or in any similar capacity) with respect to the Transaction Documents and the transactions contemplated thereby and any advice given by any Purchaser or any of their respective representatives or agents
in connection with the Transaction Documents and the transactions contemplated thereby is merely incidental to the Purchasers’ purchase of the Shares. The Company further represents to each Purchaser that the Company’s decision to enter
into this Agreement and the other Transaction Documents has been based solely on the independent evaluation of the transactions contemplated hereby by the Company and its representatives. 
 (gg) Regulation M Compliance. The Company has not, and to its knowledge no one acting on its behalf has, (i) taken, directly or
indirectly, any action designed to cause or to result in the stabilization or manipulation of the price of any security of the Company to facilitate the sale or resale of any of the Shares, (ii) sold, bid for, purchased, or, paid any
compensation for soliciting purchases of, any of the Shares, or (iii) paid or agreed to pay to any Person any compensation for soliciting another to purchase any other securities of the Company, other than, in the case of clauses (ii) and
(iii), compensation paid to the Placement Agent in connection with the placement of the Shares. 
 (hh) FDA. As to each of the
Company’s product candidates subject to the jurisdiction of the U.S. Food and Drug Administration (“FDA”) under the Federal Food, Drug and Cosmetic 

  

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Act, as amended, and the regulations thereunder (“FDCA”) that is manufactured, packaged, labeled, tested, distributed, sold, and/or marketed by the
Company or any of its Subsidiaries (each such product candidate, a “Pharmaceutical Product”), such Pharmaceutical Product is being manufactured, packaged, labeled, tested, distributed, sold and/or marketed by the Company in compliance with
all applicable requirements under FDCA and other federal or state laws, rules and regulations relating to registration, investigational use, premarket clearance, licensure, or application approval, good manufacturing practices, good laboratory
practices, good clinical practices, product listing, quotas, labeling, advertising, record keeping and filing of reports, except where the failure to be in compliance would not reasonably be expected to have a Material Adverse Effect. There is no
pending, completed or, to the Company’s knowledge, threatened, action (including any lawsuit, arbitration, or legal or administrative or regulatory proceeding, charge, complaint, or investigation) against the Company or any of its Subsidiaries,
and none of the Company or any of its Subsidiaries has received any notice, warning letter or other communication from the FDA or any other governmental entity, which (i) contests the premarket clearance, licensure, registration, or approval
of, the uses of, the distribution of, the manufacturing or packaging of, the testing of, the sale of, or the labeling and promotion of any Pharmaceutical Product, (ii) withdraws its approval of, requests the recall, suspension, or seizure of,
or withdraws or orders the withdrawal of advertising or sales promotional materials relating to, any Pharmaceutical Product, (iii) imposes a clinical hold on any clinical investigation by the Company or any of its Subsidiaries,
(iv) enjoins production at any facility of the Company or any of its Subsidiaries, (v) enters or proposes to enter into a consent decree of permanent injunction with the Company or any of its Subsidiaries, or (vi) otherwise alleges
any violation of any laws, rules or regulations by the Company or any of its Subsidiaries, and which, either individually or in the aggregate, would have or reasonably be expected to have a Material Adverse Effect. The properties, business and
operations of the Company have been and are being conducted in all material respects in accordance with all applicable laws, rules and regulations of the FDA. The Company has not been informed by the FDA that the FDA will prohibit the marketing,
sale, license or use in the United States of any product proposed to be developed, produced or marketed by the Company nor has the FDA expressed any concern as to approving or clearing for marketing any product being developed or proposed to be
developed by the Company. 
 (ii) Stock Options. With respect to stock options issued pursuant to the Company’s Equity Incentive
Plan(s) (i) each stock option designated by the Company at the time of grant as an “incentive stock option” under Section 422 of the Code so qualifies, (ii) except as disclosed in the SEC Reports, including the financial
statements included therein, each grant of a stock option was duly authorized no later than the date on which the grant of such stock option was by its terms to be effective (the “Grant Date”) by all necessary corporate action, including,
as applicable, approval by the board of directors of the Company (or a duly constituted and authorized committee thereof) and any required stockholder approval by the necessary number of votes or written consents, (iii) each such grant was made
in accordance with the material terms of an Equity Incentive Plan, the Securities Act and all other applicable laws and regulatory rules or requirements, and (iv) each such grant was or has now been properly accounted for in accordance with
GAAP in the financial statements (including the related notes) of the Company and disclosed in the Company’s filings with the Commission in accordance with the Exchange Act and all other applicable laws, except, in the cases of clauses (i),
(ii), (iii) and (iv), for any such failure, violation or default that would not be material to the Company and its subsidiaries taken as a whole. 
  

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 (jj) The Company is not an “ineligible issuer” (as defined in Rule 405 promulgated under the
Securities Act) and is eligible to register the Shares for resale by the Purchasers on a registration statement on Form S-3 under the Securities Act. The Company is subject to the reporting requirements of the Exchange Act, and has filed all reports
required thereby. Provided none of the Purchasers is deemed to be an underwriter with respect to any Shares, to the Company’s knowledge, there exist no facts or circumstances (including without limitation any required approvals or waivers or
any circumstances that may delay or prevent the obtaining of accountant’s consents) that reasonably could be expected to prohibit or delay the preparation and filing of a registration statement on Form S-3 under the Securities Act registering
the Shares for public resale as contemplated in the Registration Rights Agreement. 
 (kk) It is understood and acknowledged by the Company
that, except as provided in Sections 3.2(f) and 4.13 and subject to compliance by the Purchasers with applicable law, (i) none of the Purchasers have been asked by the Company or its Subsidiaries to agree, nor has any Purchaser agreed with the
Company or its Subsidiaries, to desist from purchasing or selling, long and/or short, securities of the Company, or “derivative” securities based on securities issued by the Company or to hold the Shares for any specified term;
(ii) any Purchaser, and counterparties in “derivative” transactions to which any such Purchaser is a party, directly or indirectly, presently may have a “short” position in the Common Stock, and (iii) each Purchaser
shall not be deemed to have any affiliation with or control over any arm’s length counterparty in any “derivative” transaction. The Company further understands and acknowledges that, (a) subject to compliance by the Purchasers
with applicable law, one or more Purchasers may engage in hedging and/or trading activities at various times during the period that the Shares are outstanding and (b) such hedging and/or trading activities, if any, can reduce the value of the
existing stockholders’ equity interest in the Company both at and after the time the hedging and/or trading activities are being conducted. The Company acknowledges that such aforementioned hedging and/or trading activities do not constitute a
breach of the Transaction Documents. 
 3.2 Representations and Warranties of the Purchasers. Each Purchaser, for itself and for no other Purchaser,
hereby represents and warrants as of the date hereof and as of the Closing Date to the Company as follows: 
 (a) Organization;
Authority. Such Purchaser is an entity duly organized, validly existing and in good standing under the laws of the jurisdiction of its organization with full right, corporate or partnership power and authority to enter into and to consummate the
transactions contemplated by the Transaction Documents and otherwise to carry out its obligations hereunder and thereunder. The execution, delivery and performance by such Purchaser of the transactions contemplated by this Agreement have been duly
authorized by all necessary corporate or similar action on the part of such Purchaser. Each Transaction Document to which it is a party has been duly executed by such Purchaser, and when delivered by such Purchaser in accordance with the terms
hereof, will constitute the valid and legally binding obligation of such Purchaser, enforceable against it in accordance with its terms, except (i) as limited by general equitable principles and applicable bankruptcy, insolvency,
reorganization, moratorium and other laws of general application affecting enforcement of creditors’ rights generally, (ii) as limited by laws relating to the availability of specific performance, injunctive relief or other equitable
remedies and (iii) insofar as indemnification and contribution provisions may be limited by applicable law. 
  

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 (b) Own Account. Such Purchaser understands that the Shares are “restricted securities”
and have not been registered under the Securities Act or any applicable state or other securities law and is acquiring the Shares as principal for its own account and not with a view to or for distributing or reselling such Shares or any part
thereof in violation of the Securities Act or any applicable state or other securities law, has no present intention of distributing any of such Shares in violation of the Securities Act or any applicable state or other securities law and has no
direct or indirect arrangement or understandings with any other persons to distribute or regarding the distribution of such Shares (this representation and warranty not limiting such Purchaser’s right to sell the Shares pursuant to the
Registration Statement or otherwise in compliance with applicable federal and state securities laws) in violation of the Securities Act or any applicable state or other securities law. Such Purchaser is acquiring the Shares hereunder in the ordinary
course of its business. 
 (c) Purchaser Status. At the time such Purchaser was offered the Shares, it was, and at the date hereof it
is, either: (i) an “accredited investor” as defined in Rule 501(a)(1), (a)(2), (a)(3), (a)(7) or (a)(8) under the Securities Act or (ii) a “qualified institutional buyer” as defined in Rule 144A(a) under the
Securities Act. No Purchaser is required to be registered as a broker-dealer under Section 15 of the Exchange Act. 
 (d) Experience
of Such Purchaser. Such Purchaser, either alone or together with its representatives, has such knowledge, sophistication and experience in business and financial matters so as to be capable of evaluating the merits and risks of the prospective
investment in the Shares, and has so evaluated the merits and risks of such investment. Such Purchaser is able to bear the economic risk of an investment in the Shares and, at the present time, is able to afford a complete loss of such investment.

 (e) General Solicitation. Such Purchaser is not purchasing the Shares as a result of any advertisement, article, notice or other
communication regarding the Shares published in any newspaper, magazine or similar media or broadcast over television or radio or presented at any seminar or any other general solicitation or general advertisement. 
 (f) Short Sales and Confidentiality Prior to the Date Hereof. Other than the transaction contemplated hereunder, such Purchaser has not, nor has
any Person acting on behalf of or pursuant to any understanding with such Purchaser, directly or indirectly executed any transaction, including Short Sales, in the securities of the Company during the period commencing from the time that such
Purchaser first received a term sheet (written or oral) from the Company or any other Person setting forth the material terms of the transactions contemplated hereunder until the date hereof (“Discussion Time”). Notwithstanding the
foregoing, in the case of a Purchaser that is a multi-managed investment vehicle whereby separate portfolio managers manage separate portions of such Purchaser’s assets and the portfolio managers have no direct knowledge of the investment
decisions made by the portfolio managers managing other portions of such Purchaser’s assets, the representation set forth above shall only apply with respect to the portion of assets managed by the portfolio manager that made the investment
decision to purchase the Shares covered by this Agreement. Other than to other Persons party to this Agreement, such Purchaser has maintained the confidentiality of all disclosures made to it in connection with this transaction (including the
existence and terms of this transaction). 
  

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 (g) Non-Controlling Status. Following the consummation of the transactions contemplated by the
Transaction Documents, the total number of shares of Common Stock held by such Purchaser shall not represent more than 19.9% of the outstanding Common Stock. 
 (h) Affiliate Status. If such Purchaser is domiciled or was formed outside of the U.S., such Purchaser is not an “affiliate” (as defined in Rule 144) of the Company or acting on behalf of the
Company and, at the time the commitment to purchase the Shares was originated, was outside the U.S. and was not a U.S. person (and was not acquiring for the account or benefit of a U.S. person) within the meaning of Regulation S. 
 (i) Provision of Information. Such Purchaser has been afforded (i) the opportunity to ask such questions as it has deemed necessary of, and
to receive answers from, representatives of the Company concerning the terms and conditions of the Shares and the finances, operations and business of the Company; and (ii) the opportunity to request such additional information which the
Company possesses or can acquire without unreasonable effort or expense. 
 (j) Certain Fees. No brokerage or finder’s fees or
commissions are or will be payable by such Purchaser to any broker, financial advisor or consultant, finder, placement agent, investment banker, bank or other Person with respect to the transactions contemplated by the Transaction Documents.

 (k) Residency; Foreign Securities Laws. Unless such Purchaser resides, in the case of individuals, or is headquartered or formed,
in the case of entities, in the United States, such Purchaser acknowledges that the Company will not issue any Shares in compliance with the laws of any jurisdiction outside of the United States and the Company makes no representation or warranty
that any Shares issued outside of the United States have been offered or sold in compliance with the laws of the jurisdiction into which such Shares were issued. Any Purchaser not a resident of or formed in the United States warrants to the Company
that no filing is required by the Company with any governmental authority in such Purchaser’s jurisdiction in connection with the transactions contemplated hereby. If such Purchaser is domiciled or was formed outside of the U.S., such Purchaser
has satisfied itself as to the full observance of the laws of its jurisdiction in connection with the acquisition of the Shares or any use of this Agreement, including (i) the legal requirements within its jurisdiction for the purchase of the
Shares, (ii) any foreign exchange restrictions applicable to such purchase, (iii) any governmental or other consents that may need to be obtained and (iv) the income tax and other tax consequences, if any, that may be relevant to the
purchase, holding, redemption, sale or transfer of the Shares. If such Purchaser is domiciled or was formed outside the U.S., such Purchaser’s acquisition of and payment for, and its continued ownership of the Shares, will not violate any
applicable securities or other laws of his, her or its jurisdiction. 
 (l) Acknowledgement. Each Purchaser acknowledges that the
Company has relied upon the representations and warranties of the Purchasers set forth in Section 3.2 in its determination that no registration under the Securities Act is required for the offer and sale of the Shares by the Company to the
Purchasers as contemplated by this Agreement. 
 (m) Acknowledgements Regarding Placement Agent. 
  

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 (i) The Purchaser acknowledges that the Placement Agent is acting as the exclusive
placement agent on a “best efforts” basis for the Shares being offered hereby and will be compensated by the Company for acting in such capacity. The Purchaser represents that (1) the Purchaser has a pre-existing relationship with the
Placement Agent, (2) the Purchaser was contacted regarding the sale of the Shares by the Placement Agent (or an authorized agent or representative thereof) with whom the Purchaser entered into a confidentiality agreement and (3) no Shares
were offered or sold to it by means of any form of general solicitation or general advertising. 
 (ii) The Purchaser
acknowledges that the Placement Agent and its directors, officers, employees, representatives and controlling persons have no responsibility for making any independent investigation of the SEC Reports and make no representation or warranty to the
Purchaser, express or implied, with respect to the Company or the Shares or the accuracy, completeness or adequacy of the SEC Reports or any other publicly available information, nor shall any of the foregoing persons be liable for any loss or
damages of any kind resulting from the use of the information contained therein or otherwise supplied to the Purchaser. In addition, the Purchaser acknowledges that it has not relied on information provided by any of such persons but has conducted
its own investigation. 
 ARTICLE IV. 
 OTHER AGREEMENTS OF THE PARTIES 
 4.1 Transfer Restrictions. 
 (a) The Shares may only be disposed of in compliance with state and federal securities laws (including, in the case of Purchasers domiciled or formed outside the U.S., Regulation S). In connection with any
transfer of Shares, other than pursuant to an effective registration statement, Rule 144, or Regulation S, to the Company or to an Affiliate of a Purchaser or in connection with a pledge as contemplated in Section 4.1(d), the Company may
require the transferor thereof to provide to the Company an opinion of counsel selected by the transferor and reasonably acceptable to the Company, the form and substance of which opinion shall be reasonably satisfactory to the Company, to the
effect that such transfer does not require registration of such transferred Shares under the Securities Act. As a condition of transfer, any such transferee shall agree in writing to be bound by the terms of this Agreement and shall have the rights
of a Purchaser under this Agreement and the Registration Rights Agreement. 
 (b) The Purchasers that reside, are domiciled or are formed,
within the U.S. agree to the imprinting, so long as is required by this Section 4.1, of a legend on any of the Shares in the following form: 
 THESE SECURITIES HAVE NOT BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE
“SECURITIES ACT”), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN 

  

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EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR PURSUANT TO AN AVAILABLE EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE REGISTRATION
REQUIREMENTS OF THE SECURITIES ACT AND IN ACCORDANCE WITH APPLICABLE STATE SECURITIES LAWS AS EVIDENCED BY A LEGAL OPINION OF COUNSEL TO THE TRANSFEROR TO SUCH EFFECT, THE SUBSTANCE OF WHICH SHALL BE REASONABLY ACCEPTABLE TO THE COMPANY. THIS
SECURITY MAY BE PLEDGED IN CONNECTION WITH A BONA FIDE MARGIN ACCOUNT WITH A REGISTERED BROKER-DEALER OR OTHER LOAN WITH A FINANCIAL INSTITUTION THAT IS AN “ACCREDITED INVESTOR” AS DEFINED IN RULE 501(a) UNDER THE SECURITIES ACT OR OTHER
LOAN SECURED BY SUCH SECURITIES. 
 (c) The Purchasers that are domiciled or are formed outside of the U.S. agree to the imprinting, so long
as is required by this Section 4.1, of a legend on any of the Shares in the following form: 
 THE SECURITIES EVIDENCED HEREBY HAVE NOT
BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR ANY STATE OR OTHER SECURITIES LAWS, AND MAY NOT BE OFFERED, REOFFERED, SOLD, ASSIGNED, TRANSFERRED, PLEDGED, ENCUMBERED OR OTHERWISE DISPOSED OF OR
DISTRIBUTED, DIRECTLY OR INDIRECTLY, WITHIN THE UNITED STATES OR TO OR FOR THE ACCOUNT OF U.S. PERSONS UNLESS THE TRANSACTION IS EXEMPT FROM, OR NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT OR PURSUANT TO AN EFFECTIVE
REGISTRATION STATEMENT UNDER THE SECURITIES ACT. THE HOLDER OF THIS SECURITY BY ITS ACCEPTANCE HEREOF AGREES THAT IT WILL NOT OFFER, REOFFER, SELL, ASSIGN, TRANSFER, PLEDGE, ENCUMBER OR OTHERWISE DISPOSE OF OR DISTRIBUTE DIRECTLY OR INDIRECTLY THESE
SECURITIES IN THE UNITED STATES, ITS TERRITORIES, POSSESSIONS, OR AREAS SUBJECT TO ITS JURISDICTION, OR TO OR FOR THE ACCOUNT OR BENEFIT OF A U.S. PERSON EXCEPT (A) TO THE COMPANY OR A SUBSIDIARY OF THE COMPANY, (B) IN CONJUNCTION WITH AN
EFFECTIVE REGISTRATION STATEMENT FOR THE SECURITIES UNDER THE SECURITIES ACT, (C) IN COMPLIANCE WITH AN EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OR (D) IN ACCORDANCE WITH THE PROVISIONS OF REGULATION S, INCLUDING RULES 904 AND
905 THEREOF. THE HOLDER OF THIS SECURITY BY ITS ACCEPTANCE HEREOF FURTHER AGREES THAT ANY HEDGING TRANSACTIONS INVOLVING THE SECURITIES WILL BE CONDUCTED IN COMPLIANCE WITH REGULATION S UNDER THE SECURITIES ACT AND AGREES THAT IT WILL GIVE TO EACH
PERSON TO WHOM THIS SECURITY IS TRANSFERRED A NOTICE SUBSTANTIALLY TO THE EFFECT OF THIS LEGEND; PROVIDED THAT THE COMPANY, THE TRANSFER AGENT, AND THE REGISTRAR SHALL HAVE THE RIGHT PRIOR TO ANY SUCH OFFER, SALE OR TRANSFER, IN EACH OF THE
FOREGOING CASES, TO REQUIRE DELIVERY OF A CERTIFICATION OF TRANSFER AND OPINION OF COUNSEL IN FORM SATISFACTORY TO THEM. AS USED 

  

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HEREIN, THE TERMS “UNITED STATES” AND “U.S. PERSON” HAVE THE MEANINGS GIVEN TO THEM BY REGULATION S UNDER THE SECURITIES ACT. 

(d) The Company acknowledges and agrees that a Purchaser may from time to time pledge pursuant to a bona fide margin agreement with a registered
broker-dealer or grant a security interest in some or all of the Shares to a financial institution that is an “accredited investor” as defined in Rule 501(a) under the Securities Act and who agrees to be bound by the provisions of this
Agreement and the Registration Rights Agreement and, if required under the terms of such arrangement, such Purchaser may transfer pledged or secured Shares to the pledgees or secured parties. Such a pledge or transfer would not be subject to
approval of the Company and no legal opinion of legal counsel of the pledgee, secured party or pledgor shall be required in connection therewith. Further, no notice shall be required of such pledge. At the appropriate Purchaser’s expense, the
Company will execute and deliver such reasonable documentation as a pledgee or secured party of Shares may reasonably request in connection with a pledge or transfer of the Shares, including, if the Shares are subject to registration pursuant to the
Registration Rights Agreement, the preparation and filing of any required prospectus supplement under Rule 424(b)(3) under the Securities Act or other applicable provision of the Securities Act to appropriately amend the list of Selling Stockholders
thereunder. 
 (e) Certificates evidencing the Shares shall not contain any legend (including the legend set forth in Section 4.1(b)),
(i) while a registration statement (including the Registration Statement) covering the resale of such security is effective under the Securities Act, or (ii) following any sale of such Shares pursuant to Rule 144, or (iii) if
such Shares are eligible for sale under Rule 144(k), or (iv) if such legend is not required under applicable requirements of the Securities Act (including judicial interpretations and pronouncements issued by the staff of the Commission).
The Company shall cause its counsel to issue a legal opinion to the Transfer Agent promptly after the Effective Date if required by the Transfer Agent to effect the removal of the legend hereunder. The Company agrees that following the Effective
Date or at such time as such legend is no longer required under this Section 4.1(e), it will, no later than 3 Trading Days following the delivery by a Purchaser to the Company or the Transfer Agent of a certificate representing Shares issued
with a restrictive legend (such third Trading Day, the “Legend Removal Date”), deliver or cause to be delivered to such Purchaser a certificate representing such Shares that is free from all restrictive and other legends. Notwithstanding
the foregoing, the Company shall not be required to remove any legends until all Shares represented by a single certificate are no longer subject to restrictions. If only a portion of the Shares represented by any single certificate are subject to
restrictions, the holder of the certificate may request, or the Company may require, that such certificate be cancelled and two new certificates be issued. One certificate shall represent, and be in the amount of, Shares not subject to restrictions
and shall bear no legend and the second certificate shall represent, and be in the amount of, Shares subject to restrictions and shall bear an appropriate legend. The Company may not make any notation on its records or give instructions to the
Transfer Agent that enlarge the restrictions on transfer set forth in this Section. Certificates for Shares subject to legend removal hereunder shall be transmitted by the Transfer Agent to the Purchasers by crediting the account of the
Purchaser’s prime broker or custodian bank with the Depository Trust Company System. 
  

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 (f) Each Purchaser, severally and not jointly with the other Purchasers, agrees that the removal of the
restrictive legend from certificates representing Shares as set forth in this Section 4.1 is predicated upon the Company’s reliance that the Purchaser will sell any Shares pursuant to either the registration requirements of the Securities
Act, including any applicable prospectus delivery requirements, or an exemption therefrom, and that if Shares are sold pursuant to a Registration Statement, they will be sold in compliance with the plan of distribution set forth therein. 

(g) Each Purchaser that is domiciled or was formed outside of the U.S. agrees on its own behalf and on behalf of any investor account for which it is
acquiring the Shares, and each subsequent permitted transferee of the Shares by its acceptance thereof will be deemed to have agreed, that all subsequent offers and sales of Shares prior to the date which is two years after the Closing Date shall be
made only (1) to the Company or a subsidiary thereof, (2) pursuant to a registration statement which has been declared effective under the Securities Act, (3) pursuant to offers and sales to non-U.S. persons that occur outside the
United States within the meaning of Regulation S and in compliance with Rules 904 and 905 thereunder, or (4) pursuant to any other available exemption from the registration requirements of the Securities Act. 
 (h) Each Purchaser that is domiciled or was formed outside of the U.S. represents and agrees on his, her or its behalf and on behalf of any investor
account for which it is acquiring the Shares, and each subsequent permitted transferee of the Shares, by its acceptance thereof, will be deemed to have agreed, that (i) no subscription, resale or other transfer of the Shares has been arranged,
or at Closing will have been arranged, to return the Shares to the U.S. securities markets or to a U.S. citizen or resident, and (ii) any hedging transaction involving the Shares will be conducted only in compliance with the requirements of the
Securities Act. 
 4.2 Furnishing of Information. As long as any Purchaser owns Shares and the Company remains subject to the requirements of the
Exchange Act, the Company covenants to timely file (or obtain extensions in respect thereof and file within the applicable grace period) all reports required to be filed by the Company after the date hereof pursuant to the Exchange Act. As long as
any Purchaser owns Shares, if the Company is not required to file reports pursuant to the Exchange Act, it will prepare and furnish to the Purchasers and make publicly available in accordance with Rule 144(c) such information as is required for the
Purchasers to sell the Shares under Rule 144. The Company further covenants that it will take such further action as any holder of Shares may reasonably request, to the extent required from time to time to enable such Person to sell such Shares
without registration under the Securities Act within the requirements of the exemption provided by Rule 144. 
 4.3 Integration. The Company
shall not sell, offer for sale or solicit offers to buy or otherwise negotiate in respect of any security (as defined in Section 2 of the Securities Act) that would be integrated with the offer or sale of the Shares in a manner that would
require the registration under the Securities Act of the sale of the Shares to the Purchasers or that would be integrated with the offer or sale of the Shares for purposes of the rules and regulations of any Trading Market such that it would require
shareholder approval prior to the closing of such other transaction unless shareholder approval is obtained before the closing of such subsequent transaction. 
  

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 4.4 Securities Laws Disclosure; Publicity. The Company
shall, by 8:30 a.m. (New York City time) on the Trading Day immediately following the date hereof, issue a press release or file a Form 8-K announcing the signing of this Agreement and describing the material terms of the transactions contemplated
by the Transaction Documents, including the contemplated use of proceeds. The Company and each Purchaser shall consult with each other in issuing any other press releases with respect to the transactions contemplated hereby, and neither the Company
nor any Purchaser shall issue any such press release or otherwise make any such public statement without the prior consent of the Company, with respect to any press release of any Purchaser, or without the prior consent of each Purchaser, with
respect to any press release of the Company, which consent shall not unreasonably be withheld or delayed, except if such disclosure is required by law, in which case the disclosing party shall promptly provide the other party with prior notice of
such public statement or communication. On or before the fourth (4th) Business Day following execution of Transaction Documents, the Company shall
file a Current Report on Form 8-K with the SEC describing the terms of the transactions contemplated hereby and including as an exhibit to such Current Report on Form 8-K the Transaction Documents (including schedules), in the form required by the
Exchange Act. Notwithstanding the foregoing, the Company shall not publicly disclose the name of any Purchaser, or include the name of any Purchaser in any filing with the Commission or any regulatory agency or Trading Market, without the prior
written consent of such Purchaser, except (i) as required by federal securities law in connection with (A) any registration statement contemplated by the Registration Rights Agreement, (B) the Current Report on Form 8-K required by
this Section 4.4, (C) any filing required by the Commission and (D) the filing of final Transaction Documents (including signature pages thereto) with the Commission and (ii) to the extent such disclosure is required by law or
Trading Market regulations, in which case the Company shall provide the Purchasers with prior notice of such disclosure permitted under this clause (ii). 
 4.5 Shareholder Rights Plan. No claim will be made or enforced by the Company or, with the consent of the Company, any other Person, that any Purchaser is an “Acquiring Person” under any control share acquisition, business
combination, poison pill (including any distribution under a rights agreement) or similar anti-takeover plan or arrangement in effect or hereafter adopted by the Company, or that any Purchaser could be deemed to trigger the provisions of any such
plan or arrangement, by virtue of receiving Shares under the Transaction Documents or under any other agreement between the Company and the Purchasers. 
 4.6 Non-Public Information. Except with respect to the material terms and conditions of the transactions contemplated by the Transaction Documents, the Company covenants and agrees that neither it nor any other Person acting on its
behalf will provide any Purchaser or its agents or counsel with any information that the Company believes constitutes material non-public information, unless prior thereto such Purchaser shall have executed a written agreement regarding the
confidentiality and use of such information. The Company understands and confirms that each Purchaser shall be relying on the foregoing representations in effecting transactions in securities of the Company. 
 4.7 Use of Proceeds. The Company shall use the net proceeds from the sale of the Shares hereunder for working capital purposes and shall not use such proceeds for
the satisfaction of any portion of the Company’s debt (other than payment of trade payables in the ordinary course 

  

 24 








 
of the Company’s business and prior practices), or to redeem any Common Stock or Common Stock Equivalents or to settle any outstanding litigation.

 4.8 Reimbursement. If any Purchaser becomes involved in any capacity in any Proceeding by or against any Person who is a stockholder of the Company
(except as a result of sales, pledges, margin sales and similar transactions by such Purchaser to or with any other stockholder), solely as a result of such Purchaser’s acquisition of the Shares under this Agreement, the Company will reimburse
such Purchaser for its reasonable legal and other expenses (including the cost of any investigation preparation and travel in connection therewith) incurred in connection therewith, as such expenses are incurred. The reimbursement obligations of the
Company under this paragraph shall be in addition to any liability which the Company may otherwise have, shall extend upon the same terms and conditions to any Affiliates of the Purchasers who are actually named in such action, proceeding or
investigation, and partners, directors, agents, employees and controlling persons (if any), as the case may be, of the Purchasers and any such Affiliate, and shall be binding upon and inure to the benefit of any successors, assigns, heirs and
personal representatives of the Company, the Purchasers and any such Affiliate and any such Person. The Company also agrees that neither the Purchasers nor any such Affiliates, partners, directors, agents, employees or controlling persons shall have
any liability to the Company or any Person asserting claims on behalf of or in right of the Company solely as a result of acquiring the Shares under this Agreement, except if such claim arises primarily from a breach of such Purchaser’s
representations, warranties or covenants under the Transaction Documents or any agreements or understandings such Purchaser may have with any such stockholder or any violations by the Purchaser of state or federal securities laws or any conduct by
such Purchaser which constitutes fraud, gross negligence, willful misconduct or malfeasance. 
 4.9 Indemnification of Purchasers. Subject to the
provisions of this Section 4.9, the Company will indemnify and hold each Purchaser and its directors, officers, shareholders, members, partners, investment advisors, employees and agents (and any other Persons with a functionally equivalent
role of a Person holding such titles notwithstanding a lack of such title or any other title), each Person who controls such Purchaser (within the meaning of Section 15 of the Securities Act and Section 20 of the Exchange Act), and the
directors, officers, shareholders, agents, members, partners or employees (and any other Persons with a functionally equivalent role of a Person holding such titles notwithstanding a lack of such title or any other title) of such controlling persons
(each, a “Purchaser Party”) harmless from any and all losses, liabilities, obligations, claims, contingencies, damages, costs and expenses, including all judgments, amounts paid in settlements, court costs and reasonable attorneys’
fees and costs of investigation that any such Purchaser Party may suffer or incur as a result of or relating to (a) any breach of any of the representations, warranties, covenants or agreements made by the Company in this Agreement or in the
other Transaction Documents or (b) any action instituted against a Purchaser, or any of them or their respective Affiliates, by any stockholder of the Company who is not an Affiliate of such Purchaser, with respect to any of the transactions
contemplated by the Transaction Documents (unless such action is based upon a breach of such Purchaser’s representations, warranties or covenants under the Transaction Documents or any agreements or understandings such Purchaser may have with
any such stockholder or any violations by the Purchaser of state or federal securities laws or any conduct by such Purchaser which constitutes fraud, gross negligence, willful misconduct or malfeasance). If any action shall be brought 

  

 25 








 
against any Purchaser Party in respect of which indemnity may be sought pursuant to this Agreement, such Purchaser Party shall promptly notify the Company in
writing, and the Company shall have the right to assume the defense thereof with counsel of its own choosing reasonably acceptable to the Purchaser Party. Any Purchaser Party shall have the right to employ separate counsel in any such action and
participate in the defense thereof, but the fees and expenses of such counsel shall be at the expense of such Purchaser Party except to the extent that (i) the employment thereof has been specifically authorized by the Company in writing,
(ii) the Company has failed after a reasonable period of time to assume such defense and to employ counsel or (iii) in such action there is, in the reasonable opinion of such separate counsel, a material conflict on any material issue
between the position of the Company and the position of such Purchaser Party, in which case the Company shall be responsible for the reasonable fees and expenses of no more than one such separate counsel. The Company will not be liable to any
Purchaser Party under this Agreement (i) for any settlement by a Purchaser Party effected without the Company’s prior written consent, which shall not be unreasonably withheld or delayed; or (ii) to the extent, but only to the extent
that a loss, claim, damage or liability is attributable to (A) any Purchaser Party’s breach of any of the representations, warranties, covenants or agreements made by such Purchaser Party in this Agreement or in the other Transaction
Documents, (B) any violations by the Purchaser of state or federal securities laws or (C) any conduct by such Purchaser which constitutes fraud, gross negligence, willful misconduct or malfeasance. 
 4.10 Reservation of Common Stock. As of the date hereof, the Company has reserved and the Company shall continue to reserve and keep available at all times, free
of preemptive rights, a sufficient number of shares of Common Stock for the purpose of enabling the Company to issue Shares pursuant to this Agreement. 
 4.11 Listing of Common Stock. The Company hereby agrees to use best efforts to maintain the listing of the Common Stock on a Trading Market (other than the OTC Bulletin Board), and as soon as reasonably practicable following the
Closing (but not later than the earlier of the Effective Date and the first anniversary of the Closing Date) to take all action necessary to list all of the Shares on such Trading Market. The Company further agrees, if the Company applies to have
the Common Stock traded on any other Trading Market, it will include in such application all of the Shares, and will take such other action as is necessary to cause all of the Shares to be listed on such other Trading Market as promptly as possible.
The Company will take all action reasonably necessary to continue the listing and trading of its Common Stock on a Trading Market and will comply in all respects with the Company’s reporting, filing and other obligations under the bylaws or
rules of the Trading Market. 
 4.12 Equal Treatment of Purchasers. No consideration shall be offered or paid to any Person to amend or consent to a
waiver or modification of any provision of any of the Transaction Documents unless the same consideration is also offered to all of the parties to the Transaction Documents. For clarification purposes, this provision constitutes a separate right
granted to each Purchaser by the Company and negotiated separately by each Purchaser, and is intended for the Company to treat the Purchasers as a class and shall not in any way be construed as the Purchasers acting in concert or as a group with
respect to the purchase, disposition or voting of Shares or otherwise. 
  

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 4.13 Short Sales and Confidentiality After The Date Hereof. Each Purchaser severally and not jointly with the
other Purchasers covenants that neither it nor any Affiliate or other Person acting on its behalf or pursuant to any understanding with it will execute any Short Sales during the period commencing at the beginning of the Discussion Time and ending
at the time that the transactions contemplated by this Agreement are first publicly announced as described in Section 4.4. Each Purchaser, severally and not jointly with the other Purchasers, covenants that until such time as the transactions
contemplated by this Agreement are publicly disclosed by the Company as described in Section 4.4, such Purchaser will maintain the confidentiality of all disclosures made to it in connection with this transaction (including the existence and
terms of this transaction). Each Purchaser understands and acknowledges, severally and not jointly with any other Purchaser, that the Commission currently takes the position that coverage of short sales of shares of the Common Stock “against
the box” prior to the Effective Date of the Registration Statement with the Shares is a violation of Section 5 of the Securities Act, as set forth in Item 65, Section A, of the Manual of Publicly Available Telephone
Interpretations, dated July 1997, compiled by the Office of Chief Counsel, Division of Corporation Finance. Notwithstanding the foregoing, no Purchaser makes any representation, warranty or covenant hereby that it will not engage in Short Sales
in the securities of the Company after the time that the transactions contemplated by this Agreement are first publicly announced as described in Section 4.4. Notwithstanding the foregoing, in the case of a Purchaser that is a multi-managed
investment vehicle whereby separate portfolio managers manage separate portions of such Purchaser’s assets and the portfolio managers have no direct knowledge of the investment decisions made by the portfolio managers managing other portions of
such Purchaser’s assets, the covenant set forth above shall only apply with respect to the portion of assets managed by the portfolio manager that made the investment decision to purchase the Shares covered by this Agreement. 
 4.14 Delivery of Shares After Closing. The Company shall deliver, or cause to be delivered, the respective Shares purchased by each Purchaser to such Purchaser
within 3 Trading Days of the Closing Date. 
 4.15 Form D; Blue Sky Filings. The Company agrees to timely file a Form D with respect to the
Shares as required under Regulation D and to provide a copy thereof, promptly upon request of any Purchaser. The Company shall take such action as the Company shall reasonably determine is necessary in order to obtain an exemption for, or to
qualify the Shares for, sale to the Purchasers at the Closing under applicable securities or “Blue Sky” laws of the states of the United States, and shall provide evidence of such actions promptly upon request of any Purchaser. Each
Purchaser shall take all commercially reasonable actions that are reasonably requested by the Company related to, or to effectuate, the filing of a Form D or any filing required pursuant to the “Blue Sky” laws of the states of the
United States which, for purposes of clarity, shall not include the payment of any fees by such Purchaser. 
 4.16 Investment Company. The Company
shall conduct its business in a manner so that it will not become subject to the Investment Company Act of 1940, as amended. 
  

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 ARTICLE V. 
 MISCELLANEOUS 
 5.1 Termination. This Agreement may be terminated by any Purchaser, as to such Purchaser’s
obligations hereunder only and without any effect whatsoever on the obligations between the Company and the other Purchasers, by written notice to the other parties, if the Closing has not been consummated on or before the date 14 calendar days
after the date of this Agreement; provided, however, that the right to terminate this Agreement under this Section 5.1 shall not be available to any Person whose failure to comply with its obligations under this Agreement has been
the cause of or resulted in the failure of the Closing to occur on or before such time. Nothing in this Section 5.1 shall affect the right of any party to sue for any breach by the other party (or parties). 
 5.2 Fees and Expenses. Except as expressly set forth in the Transaction Documents to the contrary, each party shall pay the fees and expenses of its advisers,
counsel, accountants and other experts, if any, and all other expenses incurred by such party incident to the negotiation, preparation, execution, delivery and performance of this Agreement. The Company shall pay all Transfer Agent fees, stamp taxes
and other taxes and duties levied in connection with the delivery of any Shares to the Purchasers. 
 5.3 Entire Agreement. The Transaction Documents,
together with the exhibits and schedules thereto, contain the entire understanding of the parties with respect to the subject matter hereof and thereof and supersede all prior agreements and understandings, oral or written, with respect to such
matters, which the parties acknowledge have been merged into such documents, exhibits and schedules. 
 5.4 Notices. Any and all notices or other
communications or deliveries required or permitted to be provided hereunder shall be in writing and shall be deemed given and effective on the earliest of (a) the date of transmission, if such notice or communication is delivered via facsimile
at the facsimile number set forth on the signature pages attached hereto prior to 5:30 p.m. (New York City time) on a Trading Day, (b) the next Trading Day after the date of transmission, if such notice or communication is delivered via
facsimile at the facsimile number set forth on the signature pages attached hereto on a day that is not a Trading Day or later than 5:30 p.m. (New York City time) on any Trading Day, (c) the second Trading Day following the date of mailing, if
sent by U.S. nationally recognized overnight courier service, or (d) upon actual receipt by the party to whom such notice is required to be given. The address for such notices and communications shall be as set forth on the signature pages
attached hereto. 
 5.5 Amendments; Waivers. No provision of this Agreement may be waived or amended except in a written instrument signed, in the
case of an amendment, by the Company and Purchasers holding at least 67% of the Shares then held by the Purchasers or, in the case of a waiver, by the party against whom enforcement of any such waived provision is sought. No waiver of any default
with respect to any provision, condition or requirement of this Agreement shall be deemed to be a continuing waiver in the future or a waiver of any subsequent default or a waiver of any other provision, condition or requirement hereof, nor shall
any delay or omission of any party to exercise any right hereunder in any manner impair the exercise of any such right. 
  

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 5.6 Headings. The headings herein are for convenience only, do not constitute a part of this Agreement and shall
not be deemed to limit or affect any of the provisions hereof. 
 5.7 Successors and Assigns. This Agreement shall be binding upon and inure to the
benefit of the parties and their successors and permitted assigns. The Company may not assign this Agreement or any rights or obligations hereunder without the prior written consent of Purchasers holding at least 67% of the Shares then held by the
Purchasers (other than by merger). Any Purchaser may assign any or all of its rights under this Agreement to any Person to whom such Purchaser assigns or transfers any Shares, provided such transferee agrees in writing to be bound, with respect to
the transferred Shares, by the provisions of the Transaction Documents that apply to the “Purchasers.” 
 5.8 No Third-Party Beneficiaries.
This Agreement is intended for the benefit of the parties hereto and their respective successors and permitted assigns and is not for the benefit of, nor may any provision hereof be enforced by, any other Person, except (i) as otherwise set
forth in Section 4.9 and (ii) the Placement Agent is an intended third party beneficiary of Article III hereof. 
 5.9 Governing Law. All
questions concerning the construction, validity, enforcement and interpretation of the Transaction Documents shall be governed by and construed and enforced in accordance with the internal laws of the State of New York, without regard to the
principles of conflicts of law thereof. Each party agrees that all legal proceedings concerning the interpretations, enforcement and defense of the transactions contemplated by this Agreement and any other Transaction Documents (whether brought
against a party hereto or its respective affiliates, directors, officers, shareholders, employees or agents) shall be commenced exclusively in the state and federal courts sitting in the City of New York. Each party hereby irrevocably submits to the
exclusive jurisdiction of the state and federal courts sitting in the City of New York, borough of Manhattan for the adjudication of any dispute hereunder or in connection herewith or with any transaction contemplated hereby or discussed herein
(including with respect to the enforcement of any of the Transaction Documents), and hereby irrevocably waives, and agrees not to assert in any suit, action or proceeding, any claim that it is not personally subject to the jurisdiction of any such
court, that such suit, action or proceeding is improper or is an inconvenient venue for such proceeding. Each party hereby irrevocably waives personal service of process and consents to process being served in any such suit, action or proceeding by
mailing a copy thereof via registered or certified mail or overnight delivery (with evidence of delivery) to such party at the address in effect for notices to it under this Agreement and agrees that such service shall constitute good and sufficient
service of process and notice thereof. Nothing contained herein shall be deemed to limit in any way any right to serve process in any other manner permitted by law. The parties hereby waive all rights to a trial by jury. If either party shall
commence an action or proceeding to enforce any provisions of the Transaction Documents, then the prevailing party in such action or proceeding shall be reimbursed by the other party for its reasonable attorneys’ fees and other costs and
expenses incurred with the investigation, preparation and prosecution of such action or proceeding. 
 5.10 Survival. The representations and
warranties contained herein shall survive the Closing and the delivery of the Shares until the 2 year anniversary of the Closing Date. 
  

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 5.11 Execution. This Agreement may be executed in two or more counterparts, all of which when taken together shall
be considered one and the same agreement and shall become effective when counterparts have been signed by each party and delivered to the other party, it being understood that both parties need not sign the same counterpart. In the event that any
signature is delivered by facsimile transmission or by e-mail delivery of a “.pdf” format data file, such signature shall create a valid and binding obligation of the party executing (or on whose behalf such signature is executed) with the
same force and effect as if such facsimile or “.pdf” signature page were an original thereof. 
 5.12 Severability. If any term, provision,
covenant or restriction of this Agreement is held by a court of competent jurisdiction to be invalid, illegal, void or unenforceable, the remainder of the terms, provisions, covenants and restrictions set forth herein shall remain in full force and
effect and shall in no way be affected, impaired or invalidated, and the parties hereto shall use their commercially reasonable efforts to find and employ an alternative means to achieve the same or substantially the same result as that contemplated
by such term, provision, covenant or restriction. It is hereby stipulated and declared to be the intention of the parties that they would have executed the remaining terms, provisions, covenants and restrictions without including any of such that
may be hereafter declared invalid, illegal, void or unenforceable. 
 5.13 Rescission and Withdrawal Right. Notwithstanding anything to the contrary
contained in (and without limiting any similar provisions of) any of the other Transaction Documents, whenever any Purchaser exercises a right, election, demand or option under a Transaction Document and the Company does not timely perform its
related obligations within the periods therein provided, then such Purchaser may rescind or withdraw, in its sole discretion from time to time upon written notice to the Company, any relevant notice, demand or election in whole or in part without
prejudice to its future actions and rights. 
 5.14 Replacement of Shares. If any certificate or instrument evidencing any Shares is mutilated, lost,
stolen or destroyed, the Company shall issue or cause to be issued in exchange and substitution for and upon cancellation thereof (in the case of mutilation), or in lieu of and substitution therefor, a new certificate or instrument, but only upon
receipt of evidence reasonably satisfactory to the Company of such loss, theft or destruction. The applicant for a new certificate or instrument under such circumstances shall also pay any reasonable third-party costs (including customary indemnity)
associated with the issuance of such replacement Shares. 
 5.15 Remedies. In addition to being entitled to exercise all rights provided herein or
granted by law, including recovery of damages, each of the Purchasers and the Company will be entitled to specific performance under the Transaction Documents. The parties agree that monetary damages may not be adequate compensation for any loss
incurred by reason of any breach of obligations contained in the Transaction Documents and hereby agrees to waive and not to assert in any action for specific performance of any such obligation the defense that a remedy at law would be adequate.

 5.16 Payment Set Aside. To the extent that the Company makes a payment or payments to any Purchaser pursuant to any Transaction Document or a
Purchaser enforces or exercises its rights thereunder, and such payment or payments or the proceeds of such enforcement or exercise or any part thereof are subsequently invalidated, declared to be fraudulent or 

  

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preferential, set aside, recovered from, disgorged by or are required to be refunded, repaid or otherwise restored to the Company, a trustee, receiver or any
other person under any law (including, without limitation, any bankruptcy law, state or federal law, common law or equitable cause of action), then to the extent of any such restoration the obligation or part thereof originally intended to be
satisfied shall be revived and continued in full force and effect as if such payment had not been made or such enforcement or setoff had not occurred. 
 5.17 Independent Nature of Purchasers’ Obligations and Rights. The obligations of each Purchaser under any Transaction Document are several and not joint with the obligations of any other Purchaser, and no Purchaser shall be
responsible in any way for the performance or non-performance of the obligations of any other Purchaser under any Transaction Document. Nothing contained herein or in any other Transaction Document, and no action taken by any Purchaser pursuant
thereto, shall be deemed to constitute the Purchasers as a partnership, an association, a joint venture or any other kind of entity, or create a presumption that the Purchasers are in any way acting in concert or as a group with respect to such
obligations or the transactions contemplated by the Transaction Documents. Each Purchaser shall be entitled to independently protect and enforce its rights, including without limitation, the rights arising out of this Agreement or out of the other
Transaction Documents, and it shall not be necessary for any other Purchaser to be joined as an additional party in any proceeding for such purpose. Each Purchaser has been represented by its own separate legal counsel in their review and
negotiation of the Transaction Documents. For reasons of administrative convenience only, Purchasers and their respective counsel have chosen to communicate with the Company through GP. GP does not represent any of the Purchasers but only the
Placement Agent. The Company has elected to provide all Purchasers with the same terms and Transaction Documents for the convenience of the Company and not because it was required or requested to do so by the Purchasers. 
 5.18 Liquidated Damages. The Company’s obligations to pay any partial liquidated damages or other amounts owing under the Transaction Documents is a
continuing obligation of the Company and shall not terminate until all unpaid partial liquidated damages and other amounts have been paid notwithstanding the fact that the instrument or security pursuant to which such partial liquidated damages or
other amounts are due and payable shall have been canceled. 
 5.19 Construction. The parties agree that each of them and/or their respective counsel
has reviewed and had an opportunity to revise the Transaction Documents and, therefore, the normal rule of construction to the effect that any ambiguities are to be resolved against the drafting party shall not be employed in the interpretation of
the Transaction Documents or any amendments hereto. 
 5.20 Publicity. The Company agrees that it will not use in advertising or publicity the names
of the Fidelity Purchasers, Fidelity Management & Research Corporation, any of its partners or employees, any of the funds or accounts managed by it or any of its affiliates, or any trade name, trademark, trade device, service mark, symbol
or any abbreviation, contraction or simulation thereof, in any case without the prior written consent of Fidelity Management & Research Company. 
 5.21 Limitation of Liability. A copy of the Agreement and Declaration of Trust of each of the Fidelity Purchasers is on file with the Secretary of State of the Commonwealth of Massachusetts, 

  

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and notice is hereby given that this Agreement is executed on behalf of the Trustees of each Fidelity Purchaser as Trustees and not individually and that the
obligations of this Agreeement are not binding upon any of the Trustees, officers or stockholders of the Fidelity Purchasers individually but are binding only upon the assets and property of such Fidelity Purchasers. The Company is expressly put on
notice that the rights and obligations of each series of shares of each Fidelity Purchaser under its Declaration of Trust are separate and distinct from those of any and all other entities. 
 (Signature Pages Follow) 
  

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	SIGNATURE PAGE	  		  	Date Signed: __________,
2007                            


						
			
	 Number of Shares:
	  		  		
		  		  	 	 
	 Multiplied by Per Share Purchase Price:
	  	x	  	$	                                      
                  
		  		  	 	 
	 Equals Subscription Amount:
	  	=	  	$	                                      
                  
		  		  	 	 

  

					
			
	  	 		 	  
	Signature	 		 	Second Signature (if purchasing jointly)
			
	  	 		 	  
	Printed Name	 		 	Printed Second Name
			
	  	 		 	  
	Entity Name	 		 	Entity Name
			
	  	 		 	  
	Address	 		 	Address
			
	  	 		 	  
	City, State and Zip Code	 		 	City, State and Zip Code
			
	  	 		 	  
	Telephone-Business	 		 	Telephone—Business
			
	  	 		 	  
	Facsimile-Business	 		 	Facsimile-Business
			
	  	 		 	  
	Tax ID # or Social Security #	 		 	Tax ID # or Social Security #

 Name in which Shares should be issued:
                                        
                                        

 Leerink Swann LLC Account Number (if applicable):
                                        
                   
  

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 This Securities Purchase Agreement is agreed to and accepted as of ____________, 2007. 
  

			
	COUGAR BIOTECHNOLOGY, INC.
		
	By:	 	 
	Name:	 	
	Title:	 	


  

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 CERTIFICATE OF SIGNATORY 
 (To be completed if Shares are being subscribed for by an entity) 
 I,______________________________, am
the____________________________ of_______________________________________ (the “Entity”). 
 I certify that I am empowered and duly
authorized by the Entity to execute and carry out the terms of the Securities Purchase Agreement and to purchase and hold the Shares, and certify further that the Securities Purchase Agreement has been duly and validly executed on behalf of the
Entity and constitutes a legal and binding obligation of the Entity. 
 IN WITNESS WHEREOF, I have set my hand this ___ day of ____, 2007.

  

	
	
	  
	(Signature)


  

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 EXHIBIT A 
 Registration Rights Agreement 
  

 A-1 








 EXHIBIT B 
 Form of Opinion of Company Counsel 
 1. The Company is validly existing as a corporation and
in good standing in the State of Delaware, with the requisite corporate power and authority to own and use its properties and assets and to carry on its business as currently conducted. 
 2. The Company is duly qualified to do business as a foreign corporation and is in good standing under the laws of California. 
 3. The Company has all requisite corporate power and authority to (a) execute, deliver and perform the Transaction Documents, (b) issue, sell
and deliver the Shares and (c) carry out and perform its obligations under the Transaction Documents and consummate the transactions contemplated thereby. 
 4. The Transaction Documents have been duly and validly executed and delivered by the Company. The execution and delivery of the Transaction Documents by the Company and the consummation by the Company of the
transactions contemplated thereby, including without limitation, the issuance of the Shares, have been duly authorized by all necessary corporate action on the part of the Company. The Transaction Documents constitute legal, valid and binding
obligations of the Company, enforceable against the Company according to their terms. 
 5. No approval, authorization, waiver, consent,
registration, filing, qualification, license or permit of or with any court, regulatory, administrative or other governmental body is required for the execution and delivery of the Transaction Documents or the consummation of the transactions
contemplated thereby, except for the filing of a Form D with the Securities and Exchange Commission and such other filings required under applicable state securities laws. 
 6. The Shares have been duly authorized and, when paid for and issued in accordance with the Purchase Agreement, the Shares will be validly issued, fully
paid and non-assessable. 
 7. Subject to the accuracy of the Purchasers’ representations set forth in Section 3.2 of the Purchase
Agreement, the offer and sale of the Shares to the Purchasers in accordance with the terms of the Purchase Agreement is exempt from the registration requirements of Section 5 of the Securities Act and from the securities registration and
qualification requirements of all applicable state securities laws. 
 8. Based solely on the representations made by the Company in the
Securities Purchase Agreement, the authorized capital stock of the Company consists of 100,000,000 shares of Common Stock and 10,000,000 shares of preferred stock, and as of December [__], 2007, there were
[            ] shares of Common Stock issued and outstanding, [            ] shares of Common Stock reserved for
issuance pursuant to outstanding options and [            ] shares of Common Stock reserved for issuance pursuant to outstanding warrants. There are no shares of 

  

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any class or series of preferred stock issued or outstanding. To our knowledge, other than as set forth above or in the SEC Reports, there are no other
options, warrants, conversion privileges, calls, preemptive rights or other rights, commitments or agreements of any character to which the Company is a party or by which the Company is bound or obligating the Company to issue, deliver, sell,
repurchase or redeem, or cause to be issued, delivered, sold, repurchased or redeemed, any shares of the capital stock of the Company or obligating the Company to grant, extend or enter into any such option, warrant, conversion privilege, call,
preemptive right or other right, commitment or agreement. 
 9. The execution, delivery and performance by the Company, and the compliance by
the Company with the terms of the Transaction Documents and the issuance, sale and delivery of the Shares pursuant to the Transaction Documents will not (a) violate any provision of the Certificate of Incorporation or Bylaws, (b) result in
a breach of or constitute a default (or an event which with notice or lapse of time or both would become a default) under, or result in or permit the termination or modification of, any agreement or instrument that is included as an exhibit to the
SEC Reports, or (c) violate any order, writ, judgment or decree known to us to which the Company is a party or is subject. 
  

 3