Document:

EX-10.10

 EXHIBIT 10.10 

Employee Non-Competition, Non-Solicitation, Confidentiality and Assignment Agreement 

In consideration and as a condition of my employment or continued employment by Zafgen, Inc., a Delaware corporation (the
“Company”), I agree as follows: 

 

 1. Proprietary Information. I agree that all information, whether or not in writing, whether or
not disclosed before or after I was first employed by the Company, concerning the Company’s business, technology, business relationships or financial affairs which the Company has not released to the general public (collectively,
“Proprietary Information”), and all tangible embodiments thereof, are and will be the exclusive property of the Company. By way of illustration, Proprietary Information may include information or material which has not been made generally
available to the public, such as: (a) corporate information, including plans, strategies, methods, policies, resolutions, notes, email correspondence, negotiations or litigation; (b) marketing information, including
strategies, methods, customer identities or other information about customers, prospect identities or other information about prospects, or market analyses or projections; (c) financial information, including cost and performance data,
debt arrangements, equity structure, investors and holdings, purchasing and sales data and price lists; (d) operational and technological information, including plans, specifications, manuals, forms, templates, software, designs,
methods, procedures, formulas, discoveries, inventions, improvements, concepts and ideas; and (e) personnel information, including personnel lists, reporting or organizational structure, resumes, personnel data, compensation structure,
performance evaluations and termination arrangements or documents. Proprietary Information also includes, without limitation, (i) information received in confidence by the Company from its customers or suppliers or other third parties and
(ii) all biological or chemical materials and other tangible embodiments of the Proprietary Information. 
 2. Recognition of Company’s
Rights. I will not, at any time, without the Company’s prior written permission, either during or after my employment, disclose or transfer any Proprietary Information to anyone outside of the Company, or use or permit to be used any
Proprietary Information for any purpose other than the performance of my duties as an employee of the Company. I will cooperate with the Company and use my best efforts to prevent the unauthorized disclosure of all Proprietary Information. I will
deliver to the Company all copies and other tangible embodiments of Proprietary Information in my possession or control upon the earlier of a request by the Company or termination of my employment. 

3. Rights of Others. I understand that the Company is now and may hereafter be subject to non-disclosure or confidentiality agreements with third
persons which require the Company to protect or refrain from use of proprietary information. I agree to be bound by the terms of such agreements in the event I have access to such proprietary information. 

4. Commitment to Company; Avoidance of Conflict of Interest. While an employee of the Company, I will devote

 my full-time efforts to the Company’s business and I will not engage in any other business activity that
conflicts with my duties to the Company. I will advise the President of the Company or his or her nominee at such time as any activity of either the Company or another business presents me with a conflict of interest or the appearance of a conflict
of interest as an employee of the Company. I will take whatever action is requested of me by the Company to resolve any conflict or appearance of conflict which it finds to exist. 

5. Developments. I will make full and prompt disclosure to the Company of all inventions, discoveries, designs, developments, methods,
modifications, improvements, processes, algorithms, databases, computer programs, formulae, techniques, trade secrets, graphics or images, and audio or visual works and other works of authorship (collectively “Developments”), whether or
not patentable or copyrightable, that are created, made, conceived or reduced to practice by me (alone or jointly with others) or under my direction during the period of my employment. I acknowledge that all work performed by me is on a “work
for hire” basis, and I hereby do assign and transfer and, to the extent any such assignment cannot be made at present, will assign and transfer, to the Company and its successors and assigns all my right, title and interest in and to all
Developments that (a) are created, developed, made, conceived or reduced to practice by me (alone or jointly with others) or under my direction during the period of my employment and six (6) months thereafter and that relate to the
business of the Company or any customer of or supplier to the Company or any of the products or services being researched, developed, manufactured or sold by the Company or which may be used with such products or services; (b) result from tasks
assigned to me by the Company; or (c) result from the use of premises, Proprietary Information or personal property (whether tangible or intangible) owned, leased or contracted for by the Company (collectively, “Company-Related
Developments”), and all related patents, patent applications, trademarks and trademark applications, copyrights and copyright applications, and other intellectual property rights in all countries and territories worldwide and under any
international conventions (“Intellectual Property Rights”). 
 To preclude any possible uncertainty, I have set forth on Exhibit A
attached hereto a complete list of Developments that I have, alone or jointly with others, conceived, developed or reduced to practice prior to the commencement of my employment with the Company that I consider to be my property or the property of
third parties and that I wish to have excluded from the scope of this Agreement (“Prior Inventions”). If disclosure of any such Prior Invention would cause me to violate any prior confidentiality agreement, I understand that I am not to
list such Prior Inventions in Exhibit A but am only to disclose a cursory name for each such invention, a listing of the party(ies) to whom it belongs and the fact that full disclosure as to such inventions has not been made for that
reason. I have also listed on Exhibit A all 

 

 
patents and patent applications in which I am named as an inventor, other than those which have been assigned to the Company (“Other Patent Rights”). If no such disclosure is attached,
I represent that there are no Prior Inventions or Other Patent Rights. If, in the course of my employment with the Company, I incorporate a Prior Invention into a Company product, machine, process or research or development program, or other work
done for the Company, I hereby grant to the Company a nonexclusive, royalty-free, fully paid-up, irrevocable, perpetual, worldwide license (with the full right to sublicense through multiple tiers) to make, have made, modify, use, sell, offer for
sale and import such Prior Invention. Notwithstanding the foregoing, I will not incorporate, or permit to be incorporated, Prior Inventions in any Company-Related Development without the Company’s prior written consent. 

This Agreement does not obligate me to assign to the Company any Development which, in the sole judgment of the Company, reasonably exercised, is developed
entirely on my own time and does not relate to the business efforts or research and development efforts in which, during the period of my employment, the Company actually is engaged or reasonably would be engaged, and does not result from the use of
premises or equipment owned or leased by the Company. However, I will also promptly disclose to the Company any such Developments for the purpose of determining whether they qualify for such exclusion. I understand that to the extent this Agreement
is required to be construed in accordance with the laws of any state which precludes a requirement in an employee agreement to assign certain classes of inventions made by an employee, this paragraph 5 will be interpreted not to apply to any
invention which a court rules and/or the Company agrees falls within such classes. I also hereby waive all claims to any moral rights or other special rights which I may have or accrue in any Company-Related Developments. 

6. Documents and Other Materials. I will keep and maintain adequate and current records of all Proprietary Information and Company-Related
Developments developed by me during my employment, which records will be available to and remain the sole property of the Company at all times. All files, letters, notes, memoranda, reports, records, data, sketches, drawings, notebooks, layouts,
charts, quotations and proposals, specification sheets, program listings, blueprints, models, prototypes, or other written, photographic or other tangible material containing Proprietary Information, whether created by me or others, which come into
my custody or possession, are the exclusive property of the Company to be used by me only in the performance of my duties for the Company. Any property situated on the Company’s premises and owned by the Company, including without limitation
computers, disks and other storage media, filing cabinets or other work areas, is subject to inspection by the Company at any time with or without notice. In the event of the termination of my employment for any reason, I will deliver to the Company
all files, letters, notes, memoranda, reports, records, data, sketches, drawings, notebooks, layouts, charts, quotations and proposals, specification sheets, program listings, blueprints, models, prototypes, or other written, photographic or other
tangible material containing Proprietary 

 Information, and other materials of any nature pertaining to the Proprietary Information of the Company and to
my work, and will not take or keep in my possession any of the foregoing or any copies. 
 7. Enforcement of Intellectual Property
Rights. I will cooperate fully with the Company, both during and after my employment with the Company, with respect to the procurement, maintenance and enforcement of Intellectual Property Rights in Company-Related
Developments. I will sign, both during and after the term of this Agreement, all papers, including without limitation copyright applications, patent applications, declarations, oaths, assignments of priority rights, and powers of attorney, which the
Company may deem necessary or desirable in order to protect its rights and interests in any Company-Related Development or Intellectual Property Rights. If the Company is unable, after reasonable effort, to secure my signature on any such papers, I
hereby irrevocably designate and appoint each officer of the Company as my agent and attorney-in-fact to execute any such papers on my behalf, and to take any and all actions as the Company may deem necessary or desirable in order to protect its
rights and interests in the same. 
 8. Non-Competition and Non-Solicitation. In order to protect the Company’s Proprietary
Information and goodwill, during my employment and for a period of twelve (12) months following the termination of my employment for any reason (the “Restricted Period”), I will not directly or indirectly, whether as owner, partner,
shareholder, director, manager, consultant, agent, employee, co-venturer or otherwise, engage, participate or invest in any business activity anywhere in the world that develops, manufactures or markets any products, or performs any services, that
are otherwise competitive with or similar to the products or services of the Company, or products or services that the Company or its affiliates, has under development or that are the subject of active planning at any time during my employment;
provided that this shall not prohibit any possible investment in publicly traded stock of a company representing less than one percent of the stock of such company. In addition, during the Restricted Period, I will not, directly or indirectly, in
any manner, other than for the benefit of the Company, (a) call upon, solicit, divert, take away, accept or conduct any business from or with any of the customers or prospective customers of the Company or any of its suppliers, and/or
(b) solicit, entice, attempt to persuade any other employee or consultant of the Company to leave the Company for any reason or otherwise participate in or facilitate the hire, directly or through another entity, of any person who is employed
or engaged by the Company or who was employed or engaged by the Company within six (6) months of my termination of any attempt to hire such person. I acknowledge and agree that if I violate any of the provisions of this paragraph 8, the running
of the Restricted Period will be extended by the time during which I engage in such violation(s). 
 9. Government Contracts. I acknowledge
that the Company may have from time to time agreements with other persons or with the United States Government or its agencies which impose obligations or restrictions on the Company

 

  
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regarding inventions made during the course of work under such agreements or regarding the confidential nature of such work. I agree to comply with any such obligations or restrictions upon the
direction of the Company. In addition to the rights assigned under paragraph 5, I also assign to the Company (or any of its nominees) all rights which I have or acquired in any Developments, full title to which is required to be in the United States
under any contract between the Company and the United States or any of its agencies. 
 10. Prior Agreements. I hereby represent
that, except as I have fully disclosed previously in writing to the Company, I am not bound by the terms of any agreement with any previous employer or other party to refrain from using or disclosing any trade secret or confidential or proprietary
information in the course of my employment with the Company or to refrain from competing, directly or indirectly, with the business of such previous employer or any other party. I further represent that my performance of all the terms of this
Agreement as an employee of the Company does not and will not breach any agreement to keep in confidence proprietary information, knowledge or data acquired by me in confidence or in trust prior to my employment with the Company. I will not disclose
to the Company or induce the Company to use any confidential or proprietary information or material belonging to any previous employer or others. 
 11.
Remedies Upon Breach. I understand that the restrictions contained in this Agreement are necessary for the protection of the business and goodwill of the Company and I consider them to be reasonable for such purpose. Any breach of this
Agreement is likely to cause the Company substantial and irrevocable damage and therefore, in the event of such breach, the Company, in addition to such other remedies which may be available, will be entitled to specific performance and other
injunctive relief, without the posting of a bond. If I violate this Agreement, in addition to all other remedies available to the Company at law, in equity, and under contract, I agree that I am obligated to pay all the Company’s costs of
enforcement of this Agreement, including attorneys’ fees and expenses. 
 12. Use of Voice, Image and Likeness. I give the
Company permission to use any and all of my voice, image and likeness, with or without using my name, in connection with the products and/or services of the Company, for the purposes of advertising and promoting such products and/or services and/or
the Company, and/or for other purposes deemed appropriate by the Company in its reasonable discretion, except to the extent expressly prohibited by law. 

13. Publications and Public Statements. I will obtain the Company’s written approval before publishing or submitting for
publication any material that relates to my work at the Company and/or incorporates any Proprietary Information. To ensure that the Company delivers a consistent message about its products, services and operations to the public, and further in
recognition that even positive statements may have a detrimental effect on the Company in certain securities transactions and other contexts, any statement about the Company which I create, publish or post

 during my period of employment and for six (6) months thereafter, on any media accessible by the public,
including but not limited to electronic bulletin boards and Internet-based chat rooms, must first be reviewed and approved by an officer of the Company before it is released in the public domain. 

14. No Employment Obligation. I understand that this Agreement does not create an obligation on the Company or any other person to
continue my employment. I acknowledge that, unless otherwise agreed in a formal written employment agreement signed on behalf of the Company by an authorized officer, my employment with the Company is at will and therefore may be terminated by the
Company or me at any time and for any reason, with or without cause. 
 15. Survival and Assignment by the Company. I understand that my
obligations under this Agreement will continue in accordance with its express terms regardless of any changes in my title, position, duties, salary, compensation or benefits or other terms and conditions of employment. I further understand that my
obligations under this Agreement will continue following the termination of my employment regardless of the manner of such termination and will be binding upon my heirs, executors and administrators. The Company will have the right to assign this
Agreement to its affiliates, successors and assigns. I expressly consent to be bound by the provisions of this Agreement for the benefit of the Company or any parent, subsidiary or affiliate to whose employ I may be transferred without the necessity
that this Agreement be resigned at the time of such transfer. 
 16. Exit Interview. If and when I depart from the Company, I may be required
to attend an exit interview and sign an “Employee Exit Acknowledgement” to reaffirm my acceptance and acknowledgement of the obligations set forth in this Agreement. For twelve (12) months following termination of my employment, I
will notify the Company of any change in my address and of each subsequent employment or business activity, including the name and address of my employer or other post-Company employment plans and the nature of my activities. 

17. Disclosure to Future Employers. I will provide a copy of this Agreement to any prospective employer, partner or coventurer
prior to entering into an employment, partnership or other business relationship with such person or entity. 
 18. Severability. In case any
provisions (or portions thereof) contained in this Agreement shall, for any reason, be held invalid, illegal or unenforceable in any respect, such invalidity, illegality or unenforceability shall not affect the other provisions of this Agreement,
and this Agreement shall be construed as if such invalid, illegal or unenforceable provision had never been contained herein. If, moreover, any one or more of the provisions contained in this Agreement shall for any reason be held to be excessively
broad as to duration, geographical scope, activity or subject, it shall be construed by limiting and reducing it, so as to be enforceable to the extent compatible with the applicable law as it shall then appear.

 

  
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 19. Entire Agreement. This Agreement constitutes the entire and only agreement between the Company
and me respecting the subject matter hereof, and supersedes all prior agreements and understandings, oral or written, between us concerning such subject matter. No modification, amendment, waiver or termination of this Agreement or of any provision
hereof will be binding unless made in writing and signed by an authorized officer of the Company. Failure of the Company to insist upon strict compliance with any of the terms, covenants or conditions hereof will not be deemed a waiver of such
terms, covenants or conditions. In the event of any inconsistency between this Agreement and any other contract

 
between the Company and me, the provisions of this Agreement will prevail. 
 20.
Interpretation. This Agreement will be deemed to be made and entered into in the Commonwealth of Massachusetts, and will in all respects be interpreted, enforced and governed under the laws of the Commonwealth of Massachusetts. I hereby
agree to consent to personal jurisdiction of the state and federal courts situated within Suffolk County, Massachusetts for purposes of enforcing this Agreement, and waive any objection that I might have to personal jurisdiction or venue in those
courts. As used in this Agreement, “including” means “including but not limited to.” 

 

  
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 I UNDERSTAND THAT THIS AGREEMENT AFFECTS IMPORTANT RIGHTS. BY SIGNING BELOW, I 

CERTIFY THAT I HAVE READ IT CAREFULLY AND AM SATISFIED THAT I UNDERSTAND IT COMPLETELY. 

IN WITNESS WHEREOF, the undersigned has executed this agreement as a sealed instrument as of the date set forth below. 

 

			
	Signed:	 	 /s/ Patricia L Allen

		 	(Employee’s full name)

 Type or print name: Patricia L Allen 

Date: 8/29/13 

 EXHIBIT A 
  

			
	To:	  	Zafgen, Inc.
		
	From:	  	Patricia L Allen
		
	Date:	  	8/29/13

			
		
	SUBJECT:	  	Prior Inventions

 The following is a complete list of all inventions or improvements relevant to the subject matter of my
employment by the Company that have been made or conceived or first reduced to practice by me alone or jointly with others prior to my engagement by the Company: 

 

					
	x	  	No inventions or improvements	  	
			
	 ̈	  	See below:	  	
			
		  	  
	  	
			
		  	  
	  	
			
		  	  
	  	
			
	 ̈	  	Additional sheets attached	  	
		
	The following is a list of all patents and patent applications in which I have been named as an inventor:	  	
			
	x	  	None	  	
			
	 ̈	  	See below:EX-10.13

 Exhibit 10.13 

***Text Omitted and Filed Separately with the Securities and Exchange Commission 

Confidential Treatment Requested Under 17 C.F.R. Sections 200.80(b)(4) and 230.406 

EXCLUSIVE LICENSE AGREEMENT 

BETWEEN 

CHILDREN’S MEDICAL CENTER CORPORATION 

AND 
 ZAFGEN, INC.

  
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 TABLE OF CONTENTS 

 

					
	 	  	Page	 
	 Article I DEFINITIONS
	  	 	1	  
		
	 Article II GRANT
	  	 	5	  
		
	 Article III DUE DILIGENCE AND RELATED MATTERS
	  	 	7	  
		
	 Article IV ROYALTIES AND OTHER PAYMENTS
	  	 	9	  
		
	 Article V REPORTS, RECORDS AND RELATED MATTERS
	  	 	12	  
		
	 Article VI PATENT PROSECUTION
	  	 	14	  
		
	 Article VII INFRINGEMENT
	  	 	15	  
		
	 Article VIII UNIFORM INDEMNIFICATION AND INSURANCE PROVISIONS
	  	 	16	  
		
	 Article IX COMPLIANCE WITH LAWS; EXPORT CONTROLS
	  	 	18	  
		
	 Article X NON-USE OF NAMES
	  	 	19	  
		
	 Article XI ASSIGNMENT
	  	 	19	  
		
	 Article XII DISPUTE RESOLUTION AND ARBITRATION
	  	 	19	  
		
	 Article XIII TERM AND TERMINATION
	  	 	20	  
		
	 Article XIV PAYMENTS, NOTICES, AND OTHER COMMUNICATIONS
	  	 	21	  
		
	 Article XV GENERAL PROVISIONS
	  	 	22	  
		
	 Appendix 1
	  			
		
	 Appendix 2
	  			
		
	 Appendix 3
	  			

  
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 EXCLUSIVE LICENSE AGREEMENT 

This Agreement is made and entered into as of the date last written below (the “Effective Date”), by and between
CHILDREN’S MEDICAL CENTER CORPORATION, a charitable corporation duly organized and existing under the laws of the Commonwealth of Massachusetts and having its principal office at 300 Longwood Avenue, Boston, Massachusetts 02115,
U.S.A. (hereinafter referred to as “CMCC”), and Zafgen, Inc., a business corporation organized and existing under the laws of the State of Delaware and having its principal office at One Broadway, 14th Floor, Cambridge MA 02142 (hereinafter referred to as “Licensee”). 

WHEREAS, CMCC is the co-owner with the Massachusetts Institute of Technology (“M.I.T.”) of certain Patent Rights (as
that term shall be defined hereafter) and has the right to grant exclusive licenses under the Patent Rights on its own behalf and on behalf of M.I.T. through an Inter-Institutional Agreement (attached as Appendix 1 to this Agreement),
subject only to a royalty-free, nonexclusive license granted to the United States Government for those inventions and ensuing patents developed with U.S. Government funding, and certain laws and regulations relating to Federally- funded projects and
institutions; 
 WHEREAS, in furtherance of its charitable and research missions and those laws and regulations, CMCC desires to have
the Patent Rights utilized to promote the public interest and to further that goal is willing to grant a license to Licensee on the terms and conditions described herein; 

WHEREAS, Licensee desires to obtain an exclusive license, within a designated territory and for a prescribed field of use, relating to
certain Licensed Products (as that term is defined below) and/or Licensed Processes (as that term is defined below) under the scope of the Patent Rights, subject to the terms and conditions of this Agreement; 

WHEREAS, Licensee has represented to CMCC that Licensee desires to develop the technology, which is the subject of this Agreement; that
it is ready, willing and able to engage in the research, development, and production, manufacture, marketing and sale of Licensed Products and/or the use of Licensed Processes and that it will undertake research and development as described in this
Agreement and otherwise consistent with its prudent business judgment. 
 NOW, THEREFORE, in consideration of the promises and the
mutual covenants contained herein, the parties hereto agree as follows: 
 ARTICLE I 

DEFINITIONS 
 For the
purpose of this Agreement, the following words and phrases shall have the meanings set forth below: 
 A. “Affiliate” shall
mean any company or other legal entity actually controlling, controlled by or under common control with Licensee. For purposes of the definition of “Affiliate” the term “control” shall mean: (i) in the case of a
corporate entity, the ability to effect 

  
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the election of directors, or in the case of a for-profit entity direct or indirect ownership of at least a majority of the stock or participating shares entitled to vote for the election of
directors of that entity, in any case coupled with active managerial involvement and accountability for directing the business and affairs of that entity; (ii) in the case of a partnership, the power customarily held by a managing partner to
direct the management and policies of such partnership, provided that such power is actively exercised; or (iii) in the case of a joint venture, whether in corporate, partnership or other legal form, a prevailing joint economic interest coupled
with a managerial role entailing active direction, control and accountability with respect to the business and affairs of the entity. 
 B.
“Combination Product(s) or Combination Process(es)” shall mean a product or process that includes a Licensed Product sold or performed in combination with another component(s) the manufacture, use or sale of which by itself would
not infringe the Patent Rights licensed in this Agreement. 
 C. “Fair Market Value” shall mean the cash price that would
be paid in an arm’s length transaction between two unrelated parties. The fair market value shall be fairly determined by Licensee’s’ Board of Directors and CMCC shall be notified thereof in writing together with a sufficiently
detailed explanation of the determination and summary of the underlying data (if any) and assumptions to allow CMCC to evaluate the fairness of the determination. 

D. “Field of Use” shall mean obesity and overweight. 

E. “First Commercial Sale” shall mean, with respect to each country: the first commercial sale of any Licensed Product by
Licensee, its Affiliate or any Sublicensee to an end user, (i) following receipt of marketing approval for such Licensed Product by the appropriate governmental agency, if required, for the country in which the sale is made; or (ii) if
governmental approval is not required in order to market such Licensed Product in a country, the first commercial sale in that country of the Licensed Product to an end user. 

F. “Know-How” shall mean any unpatented manufacturing information, technical information, testing and analytic methods,
processes, procedures, and specifications in the Field of Use which CMCC owns or has rights to prior to the Effective Date, arising from the activities of [...***...] at CMCC and relating to the Field of Use of the Patent Rights. 

G. “Licensed Product” shall mean any product or part thereof in the Field of Use: 

1. The manufacture, use or sale of which would infringe a Valid Claim in any country within the Territory; or 

2. The manufacture or use of which uses a “Licensed Process” as that term shall be defined hereafter; or 

3. Is a Licensed Process. 

  
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 H. “Licensed Process” shall mean any process that would infringe a Valid Claim
in the Field of Use in any country in the Territory. 
 I. “Licensee” shall mean Licensee, and successors and assignees
permitted by this Agreement (including Affiliates where they are assignees permitted by this Agreement). 
 J. “Net Sales”
shall mean the gross sales price received for sales, leases, use, or other transfers of Licensed Products by and/or for Licensee, its Affiliates, or its Sublicensees for any Licensed Products to a final customer who will be an end user of the
Licensed Product and is not an Affiliate or Sublicensee, less (to the extent appropriately documented) the following amounts: 
 (a) credits
and allowances for price adjustment, rejection, or return of Licensed Products previously sold; 
 (b) rebates, quantity and cash discounts
to purchasers allowed and taken; 
 (c) amounts for third party transportation, insurance, handling or shipping charges to purchasers; 

(d) taxes, duties and other governmental charges levied on or measured by the sale of Licensed Products, whether absorbed by Licensee or paid
by the purchaser so long as Licensee’s price is reduced thereby, but not franchise or income taxes of any kind whatsoever; 
 (e) for
any sale in which the United States government, on the basis of its royalty-free license pursuant to 35 USC Sec. 202(c) to any Patent Right, requires that the gross sales price of any Licensed Product subject to such Patent Right, be
reduced by the amount of such royalty owed CMCC, the amount of such royalty. 
 Net Sales also includes the Fair Market Value of any
non-cash consideration received by Licensee or any Sublicensee for the sale, lease, or transfer of Licensed Products. Transfer of a Licensed Product within Licensee or between Licensee and an Affiliate or between Licensee and Sublicensee for sale by
the transferee shall not be considered a Net Sale for purposes of ascertaining royalties. In such circumstances, the gross sales price and resulting Net Sales price shall be based upon the sale of the Licensed Product by the transferee. 

In the event that a Licensed Product includes both component(s) covered by a claim of a Patent Right (“Patented Component”)
and a component which is diagnostically useable or therapeutically active alone or in a combination which does not require the Patented Component, and such component is not covered by a claim of a Patent Right (“Unpatented
Component”), then Net Sales of the Combination Product or Combination Process shall be calculated using one of the following methods: 

By multiplying the Net Sales of the Combination Product or Combination Process during the applicable accounting period by a fraction, the
numerator of which is the aggregate gross selling price of the Patented Component(s) contained in the Combination Product or Combination Process if sold separately, and the denominator of which is the sum of the gross selling price of both the
Patented Component(s) and the Unpatented Component(s) contained in the Combination Product or Combination Process if sold separately; or 

  
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 In the event that no such separate sales are made of the Patented Component(s) or the Unpatented
Components during the applicable accounting period, Net Sales for purposes of determining royalties payable hereunder shall be calculated by multiplying the Net Sales of the Combination Product or Combination Process by a fraction, the numerator of
which is the fully allocated production cost of the Patented Component(s) and the denominator of which is the sum of the fully allocated production costs of the Patented Component(s) and the Unpatented Component(s) contained in the Combination
Product or Combination Process. Such fully allocated costs shall be determined by using Licensee’s standard accounting procedures, which procedures must conform to standard cost accounting procedures. 

K. “New Chemical Entity” shall mean a drug candidate that has a composition of matter or active moiety that is different from
previous drug candidate IND applications filed by Licensee for the Field of Use. 
 L. “Patent Rights” shall mean all of
the following intellectual property which CMCC and M.l.T. owns or has rights to during the Term of this Agreement as hereafter defined, excluding however any rights to inventions, improvements, derivatives or modifications discovered or invented
after the Effective Date: 
 1. The United States and foreign patents and/or patent applications listed in Appendix 2 attached
hereto and incorporated herein by reference and divisionals and continuations thereof. 
 2. The United States and foreign patents issued
from the applications listed in Appendix 2 and from divisionals and continuations of those applications. 
 3. Claims of United
States and foreign continuation-in-part applications, and of the resulting patents, which are directed to the subject matter specifically described in the United States and foreign patent applications described in Appendix 2. 

4. Claims of all later filed foreign patent applications, and of the resulting patents, which are directed to the subject matter specifically
described in the United States patent and/or patent applications described in subparagraphs 1, 2 or 3 of this Article I, Paragraph L. 

5. Any reissues, divisions, amendments or extensions of the United States or foreign patents described in subparagraphs 1, 2, 3 or 4 of
this Article I, Paragraph L. 
 M. “Reasonably Diligent Efforts” shall mean diligent efforts and resources
consistent with practices commonly used in the research-based pharmaceutical industry for a company in a similar position as Licensee at such time for a product using such company’s strategic core technology at a similar state in its
development or product life, as applicable, of similar market potential, taking into account efficacy, safety, the competitiveness of alternative products in the marketplace, the patent and other proprietary position of the product, the likelihood
of regulatory approval, and maintaining the first priority of rapid and effective development of the Licensed Products in Licensee’s corporate strategy. 

  
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 N. “Sublicensee” shall mean a person or entity that is not an Affiliate of
Licensee to whom Licensee has granted a sublicense under Licensee’s rights under this Agreement in an arm’s length transaction. 

O. “Territory” shall mean worldwide. 

P. “Term” shall have the meaning stated in Paragraph A of Article XIII. 

Q. “Valid Claim” means (i) any claim of an issued and unexpired patent included under the Patent Rights that has not
been revoked or held unenforceable by a decision of a court or other governmental entity of competent jurisdiction or unappealed within the time allowable for appeal, and (ii) any claim of a pending application included under the Patent Rights
being prosecuted in good faith that has not been abandoned or finally rejected. 
 ARTICLE II 

GRANT 
 A. Subject to the
terms of this Agreement; and conditioned on the faithful performance by Licensee of its obligations CMCC hereby grants to Licensee an exclusive, worldwide right and license to develop, have developed, make, have made, use, have used, lease, offer to
sell, and sell the Licensed Products, and to practice the Licensed Processes, in the Territory in the Field of Use during the Term, unless sooner terminated as provided in this Agreement. Subject to the same conditions, CMCC hereby also grants for
the Term of this Agreement a non-exclusive license to use Know-How directly in connection with Licensee’s research, development and commercialization of Licensed Products; provided that such license shall not include the right to
sublicense or transfer such Know-How except to contractors of Licensee and Licensee’s bona fide collaborators (only for purposes of the collaboration), for the purpose of carrying out the Development Plan. Licensee may extend the license
granted herein to its Affiliates. 
 B. Notwithstanding anything above to the contrary, CMCC shall retain a royalty-free, non-exclusive,
right to practice and use, and to license only to other academic nonprofit organizations to practice and/or use the Patent Rights, for non-commercial research, educational, clinical and/or charitable purposes only. Any such license shall
specifically exclude and prohibit commercialization of the Patent Rights unless the Licensee enters into an agreement with the Licensee on terms consistent with this Agreement. 

C. Notwithstanding any other provision of this Agreement, the license and any sublicense shall be subject to the rights of the United States
government, if any, under Public Law 96-517, 97-226, and 98-620, codified at 35 U.S.C. sec. 200-212 and any regulations promulgated thereunder; the obligations of CMCC under applicable laws and regulations; and Licensee’s
warranty to comply with all applicable laws and regulations. 

  
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 D. Licensee agrees that Licensed Products leased or sold in the United States shall be
manufactured substantially in the United States unless a waiver has been obtained for such requirement as applicable. Upon the First Commercial Sale and thereafter, Licensee’s annual report to CMCC shall substantiate Licensee’s compliance
with this provision. 
 E. To support exclusivity for Licensee consistent with this Agreement, CMCC hereby agrees that it shall not, without
Licensee’s prior written consent, grant to any other commercial party a license to develop, make, have made, use, lease and/or sell Licensed Products in the Field of Use, during the Term, except if required by laws affecting the rights of the
United States Government. 
 F. The license granted hereunder shall not be construed to confer any rights upon Licensee by implication,
estoppel or otherwise as to any inventions, discoveries, know-how, technology or other intellectual property not described in Paragraph A of this Article. 

G. As a condition of the license granted hereunder, Licensee hereby irrevocably covenants and agrees that it will not, directly or indirectly,
in any respect, use non-public information it has acquired in the course of prosecution of the Patent Rights from CMCC and/or patent counsel prosecuting the Patent Rights, or non-public information Licensee has provided, or recommendations made by
Licensee that have been implemented in whole or in part with respect to prosecution of the Patent Rights, to challenge the Patent Rights or CMCC’s ownership of such rights. Any assignment or sublicense granted by Licensee in which assignee or
Sublicensee shall participate in the patent prosecution of the remaining pending patent applications shall contain an identical commitment by the assignee or sublicensee. 

H. Nothing in this Agreement shall be construed to limit or constrain CMCC, or any officer, director, employee, or member of its medical staff
or of any CMCC Affiliate, from continuing to engage in related research; or from the development of related or unrelated inventions, discoveries, rights or technology, and from practicing, licensing or sublicensing related or unrelated intellectual
property rights arising from inventions occurring after the Effective Date of this Agreement; or from academic publication related thereto; or from entering into agreements and other relationships with other persons or organizations related to
matters not directly and expressly within the scope of this Agreement; or from exercising any rights whatsoever consistent with this Agreement with respect to the Know-How. 

I. Licensee shall have the right to enter into sublicensing agreements with respect to any of the rights, privileges, and licenses granted
hereunder, subject to the terms and conditions of this Agreement. 
 CMCC agrees that, in the event CMCC terminates this Agreement for any
permitted reason provided hereafter, CMCC shall provide written notice to known Sublicensees, no less than thirty (30) days prior to the effective date of said termination and sent to the address specified by Licensee in the notice provided to
CMCC under Paragraph J of this Article II. If the Sublicensee, during that thirty (30) day period, provides to CMCC authorized and written notice that the Sublicensee: (i) reaffirms the terms and conditions of this Agreement as
it relates to the rights the Sublicensee has been granted under the sublicense; (ii) agrees to abide by all of the 

  
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terms and conditions of this Agreement applicable to Sublicensees and to discharge directly all pertinent obligations of Licensee which Licensee is obligated hereunder to discharge;
(iii) acknowledges that CMCC shall have no obligations to the Sublicensee other than its obligations set forth in this Agreement with regard to Licensee, and (iv) is not in breach of the terms of the sublicense agreement, then, provided
that Sublicensee’s notice is satisfactory to CMCC, the sublicense agreement will survive the termination of this Agreement or, at CMCC’s request, Sublicensee will enter into a new agreement with CMCC on the same terms and conditions as
this Agreement. 
 J. In any event, Licensee agrees that any sublicense granted by it shall provide that the obligations to CMCC of
Articles II (Grant), V (Reports, Records and Related Matters), VII (Infringement), VIII (Insurance and Indemnification), IX (Compliance with Laws; Export Controls), X (Non-Use of Names), XI (Assignment), XII (Dispute Resolution and
Arbitration), XIII (Term and Termination) and XV (General Provisions) of this Agreement shall be binding upon the Sublicensee, for the benefit of CMCC, as if it were a party to this Agreement. In addition, every sublicense shall contain applicable
requirements for Reasonably Diligent Efforts in developing or exploiting the Patent Rights, or selling Licensed Products, shall obligate Licensee to enforce those provisions consistent with achieving Licensee’s obligations pursuant to this
Agreement, and shall make CMCC a third-party beneficiary of the sublicense, with the right, but not the obligation, to enforce Licensee’s rights in the event Licensee fails to, provided that CMCC has provided Licensee thirty
(30) days’ written notice to Licensee of CMCC’s intention to do so. Licensee agrees to provide to CMCC notice of any sublicense granted hereunder and to forward to CMCC a copy of any and all fully executed sublicense agreements and
sublicensee contact information within thirty (30) days of execution, which may be redacted except for those provisions directly relevant to obligations , under this Agreement. Licensee further agrees to forward to CMCC annually a copy of such
reports received by Licensee from its Sublicensees during the preceding twelve (12) month period as shall be pertinent to a royalty accounting under the applicable sublicense and compliance with the other terms of this Agreement. 

K. Licensee shall advise CMCC in writing of any consideration received from Sublicensees. Licensee shall not accept from any Sublicensee
anything of value in lieu of cash payments to discharge Sublicensee’s payment obligations under any sublicense granted under this Agreement, without the express written permission of CMCC, which permission shall not be unreasonably withheld but
may take into account a reasonable valuation for purposes of Licensee’s payment obligations to CMCC. 
 ARTICLE III 

DUE DILIGENCE AND RELATED MATTERS 

A. Licensee, upon execution of this Agreement, on its own behalf or through its Affiliates or Sublicensees, shall use Reasonably Diligent
Efforts in good faith to develop the Patent Rights and to bring one or more Licensed Products to market as soon as practicable. Licensee shall use Reasonably Diligent Efforts to obtain all necessary government approvals for the manufacture, use,
sale and distribution of Licensed Products. Thereafter, Licensee agrees that until expiration or termination of this Agreement, Licensee shall continue active and diligent efforts to keep Licensed Products reasonably available to the public. In the
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decides not to exploit a licensed Patent Right, or Field of Use, in a given portion of the Territory, it shall promptly inform CMCC in writing and shall surrender to CMCC its license to that
Patent Right or Field of Use in that portion of the Territory. 
 B. The parties acknowledge that Licensee has provided to CMCC prior to the
date of execution of this Agreement an initial written development plan (“Development Plan”) setting forth overall objectives and the initial indications and markets for Licensed Products, including (i) time-delimited target
dates for clinical candidate selection and development, (ii) time-delimited target dates for pre-clinical development, clinical trials, regulatory approval, manufacturing and marketing that represent Reasonably Diligent Efforts to bring
Licensed Products to the marketplace. Licensee will submit an updated Development Plan periodically, and in any event within twelve (12) months after the Effective Date and annually thereafter in conjunction with an Annual Status Report as
described in Article V (due January 31 each year) until launch of the first Licensed Product. The initial Development Plan is attached hereto as Appendix 3 and is hereby incorporated herein by reference. 

C. For the first three (3) years Licensee shall be deemed to have used Reasonably Diligent Efforts under this Article III as
follows: (1) during the one (1) year period after the Effective Date if, during that period, Licensee shall have raised in connection with the Patent Rights and allocated for expenditure for efforts under the requirements of this
Article III(A) a cumulative total of investment capital and/or research and development funds of at least [...***...] ($[...***...]) dollars and applied to activities under the Development Plan; (2) during the three
(3) year period after the Effective Date, during that period, Licensee shall have raised and expended aggregate funding of at least [...***...] ($[...***...]) dollars to implement the Development Plan; and (3) conduct
activities described in the initial Development Plan attached to this Agreement as Appendix 3 as provided by Licensee. After the Effective Date Licensee will include in an Annual Status Report (as defined in Article V of this
Agreement) of activities conducted under the Development Plan a commercialization plan of activities that it has planned, including designated milestones and associated timelines for the clinical trials, regulatory approval and launch of the first
product in the United States and European territories. At the time of filing the Investigational New Drug Application (“IND”) with the U.S. Food and Drug Administration (“FDA”) or equivalent with the European
Medicines Evaluation Agency (“EMEA”), whichever occurs first for the first Licensed Product, the Licensee will submit a revised plan for commercialization. 

D. In the event Licensee wishes to amend the overall objectives set forth in the initial Development Plan attached as Appendix 3
to this Agreement, Licensee will notify CMCC in writing and will include with such notice a reasonably detailed explanation of the circumstances supporting such amendment. Promptly after receipt of such notice, CMCC will notify Licensee in writing
whether it approves of such amendment, which approval will not be unreasonably withheld. In the event CMCC does not approve the amendment to objectives in the Development Plan, and CMCC and Licensee are unable to reach resolution on this matter
within a reasonable period of time, the matter will be handled in accordance with the dispute resolution terms set forth in Article XII of this Agreement. No rights of either party under this Agreement will be affected pending the outcome of
proceedings in accordance with such Article XII. 

  
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 E. In the event that, through the Annual Status Report, Licensee fails to demonstrate that it has
achieved the diligence requirements of this Article Ml, CMCC will notify Licensee in writing of any alleged deficiency and the basis for CMCC’s determination of same. Licensee will have [...***...] days following such notification to
establish that the required diligence has been achieved or to cure such deficiency or to provide an explanation for any delay to CMCC’s reasonable satisfaction. If Licensee fails to do any of the above within such [...***...]-day period,
and subject to the dispute resolution terms set forth in Article XII of this Agreement, CMCC will have the right to convert the license granted under this Agreement from exclusive to non-exclusive on financial terms and conditions to be
mutually agreed to by CMCC and Licensee. No rights of either party under this Agreement will be affected pending the outcome of proceedings in accordance with such Article XII. Notwithstanding the foregoing, Licensee may extend the due date for
achievement of any funding thresholds set out in Paragraph C of this Article III [...***...] only by [...***...] by making a payment to CMCC of [...***...] dollars ($[...***...]) on or before the date(s) specified.

 F. If, during the course of this Agreement, Licensee makes any patentable discovery or invention within the Field of Use that is not
within the scope of the Patent Rights but would not have been made but for the Patent Rights and/or the Licensed Products licensed hereunder. Licensee shall, as a condition of this License, confidentially disclose such patentable discovery or
invention to the Intellectual Property Office of CMCC, on usual and customary terms necessary to protect its patentability or its confidentiality as a trade secret. CMCC shall have the right to review in advance of filing any related patent
application by or on behalf of Licensee or any assignee of Licensee, for purposes of evaluating the relatedness to the Patent Rights. Recognizing that CMCC enters into this Agreement in furtherance of its charitable academic research mission,
Licensee shall enter into with CMCC a non-exclusive license or permit, as applicable, including no more than a nominal fee, for [...***...] and/or anyone within her laboratory, to practice such invention for which patent application has been
filed, solely for CMCC internal and academic research purposes; provided, however, that in the event that a patented invention arises from such CMCC use, CMCC shall grant to Licensee a fully paid-up non-exclusive license for internal research
purposes, and at Licensee’s discretion either a non-exclusive or exclusive commercialization license to practice the invention, subject to mutually agreeable terms. 

ARTICLE IV 
 ROYALTIES
AND OTHER PAYMENTS 
 A. For the rights, privileges and exclusive license granted hereunder, Licensee shall pay to CMCC the amounts
hereinafter provided. Unless expressly stated otherwise in this Agreement, periodic payment obligations listed below shall endure through the Term of this Agreement, unless this Agreement shall be sooner terminated as hereinafter provided: 

1. A license issue fee of $[...***...], of which $[...***...] shall be due after the full execution of this Agreement and prior to
February 1, 2007, and $[...***...] of which shall be due upon the one (1) year anniversary of the Effective Date. 

  
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 2. Payments for accrued and continuing patent prosecution costs as stated in Article VI
hereof; 
 3. Licensee shall make the following payments to CMCC upon the occurrence of the following events achieved by Licensee for the
first Licensed Product, as applicable, to achieve the relevant event (“Milestone Event”): 
 (a) $[...***...] upon
[...***...]; 
 (b) $[...***...] upon [...***...]; 

(c) $[...***...] upon [...***...]; 

(d) $[...***...] upon [...***...]; 

(e) $[...***...] upon [...***...]. 

4. Subject to Paragraph C of this Article IV, Licensee will pay running royalties equal to [...***...] percent
([...***...]%) of Net Sales of Licensed Products. 
 5. After approval of the first Licensed Product, for each Licensed Product that
is a “New Chemical Entity” covered by the Patent Rights, Licensee will make a payment to CMCC: 
 (a) equal to $[...***...]
upon [...***...] and 
 (b) equal to $[...***...] upon [...***...]. 

The payments described in this Paragraph A.5 of Article IV of this Agreement will be due within [...***...] days of receipt of
the relevant approval. 
 6. In any year in which there is no sponsored research agreement in effect or royalties from Net Sales are not
payable under this Agreement, an annual license maintenance fee shall be due as set forth below, which shall be payable on the anniversary date of the Effective Date for each subsequent year thereafter as set forth below during the exclusive license
period of this Agreement: 
 (a) $[...***...] upon the second anniversary of the Effective Date 

(b) $[...***...] upon the third anniversary of the Effective Date 

(c) $[...***...] upon the fourth anniversary of the Effective Date 

(d) $[...***...] upon the fifth anniversary of the Effective Date 

Such maintenance fees shall be creditable against royalty rates due CMCC but in no year shall the credit be greater than [...***...]
percent of the royalty due CMCC. 

  
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 7. In the event Licensee has granted sublicenses under this Agreement: 

(a) [...***...] percent ([...***...]%) of any and all payments, excluding royalties on Net Sales which will be governed as
described in Paragraph A.4 of this Article IV, received by Licensee from said Sublicensees directly in consideration of granting of the sublicense under Licensee’s rights under this Agreement, including but not limited to sublicense
issue fees, maintenance fees, lump sum payments and milestone payments (it being understood that the milestone payments set forth in Paragraph A, Section 3 of this Article IV shall not apply). For purposes of calculating consideration
for the grant of a sublicense under this Paragraph 7, the following will be excluded: royalties received by Licensee or its Affiliates for Net Sales; payment for fully loaded research and development expenses (including FTE costs),
reimbursement of patent expenses, and equity investments equal to Fair Market Value made by Sublicensee(s) in the Licensee. 
 (b)
Notwithstanding subparagraph (a) above, Licensee agrees to pay to CMCC [...***...] percent ([...***...]%) of all consideration received from a Sublicensee directly for the grant of a sublicense under Licensee’s rights in this
Agreement if such sublicense is granted (1) within [...***...] of the Effective Date, and (2) no rights to additional intellectual property are granted to such Sublicensee other than under the Patent Rights and other rights
in-licensed by Licensee under the agreement dated August 4, 2006 between Licensee and [...***...]. 
 B. No multiple royalties
shall be payable because any Licensed Product, its manufacture, use, lease or sale are or shall be covered by more than one patent or patent application under the Patent Rights of this Agreement. 

C. To the extent that Licensee is necessarily required to obtain, subsequent to the Effective Date of this Agreement licenses to third party
patents or other intellectual property that dominates or is dominated by the Patent Rights in order to practice the Patent Rights or to produce or sell Licensed Products in a particular country and avoid infringing such third-party intellectual
property, Licensee may deduct from the running royalty due to CMCC for that country [...***...] percent ([...***...]%) of the royalties due on such third party patents or intellectual property up to an amount equal to [...***...]
percent ([...***...]%) of royalties due hereunder, provided that such deduction reflects a pro rata or other fair apportionment among other parties due royalties from Licensee for such third party patents or other intellectual property and in
no event will royalties be reduced lower than one and [...***...] percent ([...***...]%) based on such deduction. Licensee will document such deductions in royalty reports to CMCC under this Agreement. 

Notwithstanding anything in this Agreement to the contrary, in respect of licenses to third party patents or other intellectual property that
cover the active pharmaceutical ingredient of a Licensed Product that Licensee has or obtains in order to practice the Patent Rights or to make, use and sell the Licensed Products in a particular country and avoid infringing such third-party
intellectual property, Licensee may deduct from the running royalty due to CMCC for that country [...***...] percent ([...***...]%) of the royalties due on such third party patents or intellectual property up to an amount equal to
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hereunder, provided that such deduction reflects a pro rata or other fair apportionment among other parties due royalties from Licensee for such third party patents or other intellectual property
and in no event will royalties be reduced lower than one and [...***...] percent ([...***...]%) based on such deduction; and provided further that in the case of intellectual property covered by the agreement between Licensee and
[...***...] dated August 4, 2006, royalties on Licensed Products may not be reduced lower than [...***...] percent ([...***...]%) based on such deduction. 

D. Royalty payments shall be paid in United States dollars in Boston, Massachusetts, or at such other place as CMCC may reasonably designate
consistent with the laws and regulations controlling in any foreign country. If the currency conversion shall be required in connection with the payments of royalties or other amounts hereunder, the conversion shall be made by using the exchange
rate prevailing in the east coast edition of the Wall Street Journal on the last business day of the calendar quarter of the applicable reporting period to which such royalty payments relate. 

E. Payment of royalties specified in this Article shall be made by Licensee to CMCC within [...***...] days after March 31,
June 30, September 30 and December 31 each year during the Term of this Agreement covering the quantity of Licensed Products sold by Licensee during the preceding calendar quarter. The royalty payments set forth in this Agreement
shall, if overdue, bear interest until payment at a per annum rate of [...***...] percent ([...***...]%) above the prime rate in effect at Bank of America, on the due date. The payment of such interest shall not foreclose CMCC from
exercising any other rights it may have as a consequence of the lateness of any payment. 
 ARTICLE V 

REPORTS, RECORDS AND RELATED MATTERS 

A. Licensee shall keep, and shall require its Affiliates and Sublicensees to keep, full, true and accurate books and records, including books
of account in accordance with generally accepted accounting principles, in sufficient detail to enable CMCC to determine Licensee’s compliance with this Agreement, including diligence with respect to the development as described in
Article III, and the royalty and other amounts payable to CMCC under this Agreement. Said books and records, including books of account, shall be kept at Licensee’s principal place of business or the principal place of business of the
appropriate division of Licensee to which this Agreement relates. Said books and the supporting data shall be retained for at least six (6) years following the end of the calendar year to which they pertain. 

B. CMCC shall have the right to inspect, copy and audit, on fifteen (15) days advance written notice, the books described above from time
to time to verify the reports provided for herein or compliance in other respects with this Agreement. CMCC or its agents shall perform such activities at CMCC’s own expense during Licensee’s regular business hours and for no other
purpose. Inspectors will be obligated to enter into a written obligation of confidentiality with Licensee and/or any applicable Sublicensee. 

  
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 C. Until the later of First Commercial Sale of a Licensed Product or the last development
milestone, and for such later periods as CMCC shall by written request from time to time require, Licensee shall provide to CMCC, at least annually, status reports with reasonable detail regarding the activities of Licensee and Licensee’s
Affiliates and Sublicensees relative to achieving the objectives set forth in the Development Plan, (“Annual Status Report”), in a timely manner, including but not limited to (i) a summary explanation of research and
development progress towards the milestones described in the Development Plan, (ii) expenditure of financial resources relevant to demonstrate where good faith efforts and adequate resources have been applied to achieve the goals of the then
current Development Plan consistent with Reasonably Diligent Efforts, (iii) any changes to dates included in the immediately prior version of the Development Plan (e.g., technical difficulties or delays in the development,
preclinical or clinical studies, or regulatory process and means of addressing such difficulties or delays, including application of suitable resources), (iv) actions of all Sublicensees, strategic alliances, and Affiliates directed towards
achievement of the Development Plan, (v) the progress of obtaining regulatory approvals, and (vi) an updated Development Plan. 

D. After the First Commercial Sale, within [...***...] days after the end of each calendar quarter, Licensee shall deliver to CMCC, at
Licensee’s expense, true and accurate reports for the said preceding quarter, giving such particulars of the business conducted by Licensee, its Affiliates and its Sublicensees under this Agreement as shall be pertinent to CMCC determining
compliance with this Agreement of royalties due under this Agreement. Reports shall include at least the following: 
 1. Number of Licensed
Products manufactured and sold. 
 2. Total Net Sales for Licensed Products sold, by country. 

3. Accounting for all Licensed Products sold. 

4. Applicable deductions. 
 5.
Total royalties payable to CMCC. 
 6. Names and addresses of all Sublicensees of Licensee. 

7. Payments received by Licensee from Affiliates and Sublicensees relevant for Licensee, obligations under Article IV, Paragraph A.

 8. Licensed Products manufactured and sold to the U.S. Government. No royalty obligations shall arise from sales or use by, for or on
behalf of the U.S. Government in view of a royalty-free, nonexclusive license that may heretofore have been granted to the U.S. Government. 

9. Royalties and Fees received from Sublicensees. 

  
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 10. A listing, with brief descriptions, of any intellectual property arising from or related to
Licensee’s or any Sublicensee’s practice of the Patent Rights. 
 E. On or before the [...***...] day following the close of
Licensee’s fiscal year, Licensee shall provide CMCC financial statements for the preceding fiscal year, including without limitation all statements reflecting profits and losses from operations, cash balances, and any management letter as
described in a statement made to Licensee’s shareholders. 
 F. Licensee acknowledges that policies of CMCC, Harvard Medical School and
affiliated organizations, relating to, inter alia, conflicts of interest and intellectual property, may affect certain direct and indirect arrangements between inventors named on patents or patent applications under the Patent Rights and
Licensee or related organizations. During the Term of this Agreement, Licensee shall notify CMCC in writing at least 30 days before Licensee, or any affiliate of Licensee, or any organization owned or controlled by an officer or director of
Licensee, enters into any agreement other than this License with or involving the inventor(s) of the Invention, or members of their laboratories known to Licensee to be employees of CMCC, or Children’s Hospital Boston, or their supporting
organizations, whether relating to sponsored research, consulting, board membership, securities, or otherwise. Licensee’s notice to CMCC shall include a detailed description of all proposed terms and conditions. Licensee shall not enter into
such an agreement if it would violate such policies unless the terms and conditions of the agreement have been duly approved pursuant to such policies. Licensee agrees to respond to reasonable inquiries from CMCC concerning specific individuals
identified by CMCC and whether such individuals are party to any agreement with Licensee pertaining to the Patent Rights. 
 ARTICLE VI

 PATENT PROSECUTION 

A. CMCC shall apply for, seek prompt issuance of, and maintain during the term of this Agreement the Patent Rights set forth in
Appendix 2. The specifications of any such patent application and any patent issuing thereon shall state, to the extent applicable, “This invention was made with government support under [contract] awarded by [Federal agency]. The
government has certain rights in this invention.” The prosecution, filing and maintenance of all Patent Rights applications and patents shall be the primary responsibility of CMCC in its sole discretion, except that Licensee shall have
reasonable opportunities to advise CMCC and shall cooperate with CMCC in the preparation, filing, prosecution and maintenance of the Patent Rights. CMCC reserves the sole right to make all final decisions with respect to the preparation, filing,
prosecution and maintenance of such patent applications and patents. 
 B. Licensee shall reimburse CMCC for all out-of-pocket patent costs,
past, present and future incurred by CMCC for the preparation, filing, prosecution and maintenance of patents underlying the Patent Rights provided CMCC has not granted a license under Patent Rights to any third party. In the event CMCC grants a
license under Patent Rights to a third party, Licensee’s obligation to pay on-going patent costs under this Agreement will be reduced in proportion to the number of additional licensees. CMCC will notify Licensee promptly in writing when it
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Licensee of CMCC’s determination of the amount of reduction of a payment due under this Paragraph B. Patent costs are currently approximately $[...***...]. Licensee shall pay such
current costs after the Effective Date of this Agreement and prior to February 1, 2007. Upon request of CMCC, and only upon such CMCC request, Licensee agrees to have CMCC’s patent counsel directly bill Licensee and Licensee shall directly
pay such invoices in compliance with such counsel’s customary business terms, but in any event within [...***...] days. If Licensee elects to no longer pay the expenses of a patent application or issued patent included within Patent
Rights in a given portion of the Territory, Licensee shall notify CMCC not less than [...***...] days prior to such action and shall thereby surrender its rights under such patent application, or issued patent to that Field of Use in that
portion of the Territory. Thereafter, Licensee will have no further financial obligations with respect to patent expenses for such patent application or issued patent and the license granted under Patent Rights in this Agreement will not include
such patent applications or issued patent. Such notice shall not relieve Licensee from responsibility to reimburse CMCC for patent-related expenses incurred prior to the expiration of the [...***...]-day notice period (or such longer period
specified in Licensee’s notice). CMCC shall then be free to license its rights to that patent or patent application to any other party on any other terms. 

C. In the event CMCC elects, in its sole discretion, not to pursue, maintain or retain a particular Patent Right licensed to Licensee
hereunder, then CMCC shall so notify Licensee and, subject to the rights of the United States government and any other contractual obligations to research sponsors, CMCC may, in its sole discretion, and on such terms if any that the parties may
negotiate, authorize Licensee to assume the filing, prosecution and/or maintenance of such application or patent at Licensee’s expense. In such event, CMCC shall provide to Licensee any authorization necessary to permit Licensee to pursue
and/or maintain such Patent Right, on such economic and other terms as the parties shall mutually agree. 
 ARTICLE VII 

INFRINGEMENT 
 A. Licensee
and CMCC shall each inform the other promptly in writing of any alleged infringement by a third party of the Patent Rights in the Field of Use within the scope of this Agreement and of any available evidence thereof. 

B. During the Term of this Agreement, CMCC shall have the right, but shall not be obligated, to prosecute at its own expense any infringement
of the Patent Rights and, in furtherance of such right, Licensee hereby agrees that CMCC may include Licensee as a party plaintiff in any such suit, without expense to Licensee. The total cost of any such infringement action commenced or defended
solely by CMCC shall be borne by CMCC. Any recovery of damages by CMCC for such suit shall be applied first in satisfaction of any unreimbursed expenses and legal fees of CMCC hereunder. CMCC shall keep any recovery or damages for past infringement
derived therefrom, except recovery that is awarded with respect to lost sales of Licensed Products, which amount of recovery will be paid to Licensee, less any amount of royalty that would have been due to CMCC if such amount were Net Sales made by
Licensee, its Affiliates or Sublicensees. CMCC agrees not to enter into any settlement, consent judgment or other voluntary final disposition of the suit referenced above without first consulting Licensee. 

  
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 C. If within three (3) months after having been notified of any alleged infringement, CMCC
shall have been unsuccessful in persuading the alleged infringer to desist and shall not have brought and shall not be diligently prosecuting an infringement action, or if CMCC shall notify Licensee of its intention not to bring suit against any
alleged infringer then, Licensee shall have the right, but shall not be obligated, to prosecute at its own expense any infringement of the Patent Rights, provided, however, that such right to bring such an infringement action shall remain in effect
only for so long as the license granted hereunder remains exclusive. No settlement, consent judgment or other voluntary final disposition of the suit may be entered into without the consent of CMCC, which consent shall not be unreasonably withheld.
Licensee shall indemnify CMCC and M.l.T. against any order for costs that may be made against CMCC in such proceedings. 
 D. In the event
Licensee shall undertake the enforcement and/or defense of the Patent Rights by litigation pursuant to Paragraph C of this Article VII, Licensee may withhold up to [...***...] percent ([...***...]%) of the payments otherwise
thereafter due to CMCC under Article IV above and apply the same toward reimbursement of up to [...***...] percent ([...***...]%) of Licensee’s expenses, including reasonable attorney’s fees, in connection therewith. Any
recovery of damages by Licensee for each such suit shall be applied first in satisfaction of any unreimbursed expenses and legal fees of CMCC and Licensee relating to such suit and next toward reimbursement of CMCC for any payments under Article IV
past due or withheld and applied pursuant to this Article VII. The balance remaining from any such recovery will be kept by Licensee, provided that such amount will be treated as Net Sales for purposes of calculating royalties due to CMCC under
this Agreement. 
 E. In the event that a declaratory judgment action alleging invalidity or noninfringement of any of the Patent Rights
shall be brought against Licensee, CMCC, at its option, shall have the right, within thirty (30) days after commencement of such action, to intervene and participate in the defense of the action at its own expense. 

F. In any infringement suit which either party may institute to enforce the Patent Rights pursuant to this Agreement, the other party hereto
shall cooperate in all reasonable respects and, to the extent reasonably possible, have its employees testify when requested and make available relevant records, papers, information, samples, specimens, and the like. 

G. Licensee shall during the exclusive period of this Agreement have the sole right subject to the terms and conditions hereof to sublicense
any alleged infringer for future use of the Patent Rights to the extent licensed by this Agreement. Any upfront fees paid to Licensee as part of such a sublicense shall be shared between Licensee and CMCC in accordance with Article IVA.7. 

ARTICLE VIII 
 UNIFORM
INDEMNIFICATION AND INSURANCE PROVISIONS 
 A. Licensee shall indemnify, defend and hold harmless CMCC and M.I.T., its corporate
affiliates, current or future directors, trustees, officers, faculty, medical and professional staff, employees, students and agents and their respective successors, heirs and 

  
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assigns (the “Indemnitees”), against any claim, liability, cost, damage, deficiency, loss, expense or obligation of any kind or nature (including without limitation reasonable
attorneys’ fees and other costs and expenses of litigation) incurred by or imposed upon the Indemnitees or any one of them in connection with any claims, suits, actions, demands or judgments arising out of any theory of product liability
(including, but not limited to, actions in the form of tort, warranty, or strict liability) concerning any product, process or service made, used or sold pursuant to any right or license granted under this Agreement, except to the extent arising
from the negligence or willful misconduct of an Indemnitee. 
 B. Licensee agrees, at its own expense, to provide attorneys reasonably
acceptable to CMCC to defend against any actions brought or filed against any party indemnified hereunder with respect to the subject of indemnity contained herein, whether or not such actions are rightfully brought. 

C. Beginning at the time as any such product, process or service is being commercially distributed or sold (other than for the purpose of
obtaining regulatory approvals) by Licensee or by a sublicensee, Affiliate or agent of Licensee, Licensee shall, at its sole cost and expense, procure and maintain commercial general liability insurance in amounts not less than $[...***...]
per incident and $[...***...] annual aggregate and naming the Indemnitees as additional insureds. Such commercial general liability insurance shall provide (i) product liability coverage when applicable and (ii) contractual liability
coverage for Licensee’s indemnification under Article VIII, Paragraphs A through C of this Agreement. If Licensee elects to self-insure all or part of the limits described above (including deductibles or retentions which are in excess
of $[...***...] annual aggregate), such self-insurance program must be acceptable to CMCC and the Risk Management Foundation of the Harvard Medical Institutions, Inc. The minimum amount of insurance coverage required under this
Article VIII, Paragraph D, shall not be construed to create a limit of Licensee’s liability with respect to its indemnification under Article VIII, Paragraphs A through C of this Agreement. 

D. Licensee shall provide CMCC with written evidence of such insurance upon request of CMCC. Licensee shall provide CMCC with written notice
at least [...***...] days prior to the cancellation, non-renewal or material change in such insurance. Notwithstanding any other term of this Agreement, if Licensee does not obtain replacement insurance providing comparable coverage within
such [...***...] day period prior to the effective date of cancellation, CMCC shall have the right to terminate this Agreement effective at the end of such [...***...] day period without written notice of any additional waiting periods.

 E. Licensee shall maintain such commercial general liability insurance during (i) the period that any such product, process or
service is being commercially distributed or sold (other than for the purpose of obtaining regulatory approvals) by Licensee or by a sublicensee, Affiliate or agent of Licensee and (ii) a reasonable period after the period referred to above,
which in no event shall be less than [...***...] years. 
 F. The provisions of this Article VIII shall survive expiration or
termination of this Agreement. 

  
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 G. CMCC represents and warrants that it has the full authority to enter into this Agreement, and
to the best knowledge of the Intellectual Property Office, it has the full authority to grant the rights under Patent Rights and other intellectual property as set forth in this Agreement. 

H. EXCEPT AS EXPLICITLY PROVIDED HEREIN, CMCC MAKES NO WARRANTY, EXPRESS OR IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY EXPRESS OR IMPLIED
WARRANTY OF MERCHANTABILITY OR ANY EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE, OR WARRANTY OF NON-INFRINGEMENT, WITH RESPECT TO ANY MATTER WITHIN THE SCOPE OF THIS AGREEMENT, INCLUDING WITHOUT LIMITATION ANY WARRANTY WITH
RESPECT TO THE PATENT RIGHTS, LICENSED PRODUCTS, OR ANY PATENT, TRADEMARK, SOFTWARE, TRADE SECRET, TANGIBLE RESEARCH PROPERTY, INFORMATION OR DATA LICENSED OR OTHERWISE PROVIDED TO LICENSEE HEREUNDER, AND HEREBY DISCLAIMS THE SAME. 

I. NEITHER PARTY WILL BE LIABLE UNDER THIS AGREEMENT FOR ANY SPECIAL, INDIRECT, INCIDENTAL, CONSEQUENTIAL OR PUNITIVE DAMAGES. EVEN IF SUCH
PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. 
 ARTICLE IX 

COMPLIANCE WITH LAWS; EXPORT CONTROLS 

Licensee shall comply with all applicable laws and regulations, including, without limitation, statutes and regulations affecting drug
testing, development, marketing and distribution; laws and implementing regulations of the Department of Commerce governing intellectual property in federally-funded inventions; and Export Administration Regulations of the United States Department
of Commerce issued pursuant to the Export Administration Act of 1979 (50 App. U.S.C. § 2401 et seq.). Licensee understands and acknowledges that transfer of certain technical data, computer software, laboratory prototypes
and other commodities is subject to United States laws and regulations controlling their export, some of which prohibit or require a license for the export of certain types of technical data, to certain specified countries. CMCC neither represents
that a license shall not be required, nor that if required, it shall be issued. Licensee hereby agrees and gives written assurance that it will comply with all United States laws and regulations, and any applicable similar laws and regulations of
any other country, controlling the export of commodities and technical data, that it will be solely responsible for any violation of such by Licensee and/or its Affiliates and/or Sublicensees, and that it will defend and hold CMCC and M.I.T., its
affiliates and their officers, directors, employees, agents, and medical staff harmless in the event of any legal action of any nature occasioned by such violation, and any action by any governmental agency or authority, or any other party, relating
to any asserted illegality or regulatory violation in the development, production, approval, marketing, sale, storage, manufacture, distribution, export or commercialization of Licensed Products. 

  
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 ARTICLE X 

NON-USE OF NAMES 
 Licensee
represents and agrees that it will not use the name, names, logos or trademarks of the CMCC and M.I.T. or any of its corporate affiliates, nor the name or photograph or other depiction of any employee or member of the staff of CMCC and M.I.T. or
such affiliates, nor any adaptation of any of the foregoing, in any advertising, promotional, or sales literature without, in each case, prior written consent from CMCC and M.I.T. and from the individual staff member, employee, or student if such
individual’s name, photograph or depiction is used. Notwithstanding the above, Licensee may state that it is licensed by CMCC under one or more patents and/or applications consistent with this Agreement, and Licensee may comply with disclosure
requirements of all applicable laws relating to its business, including United States and state security laws. In addition, Licensee may refer to publications by employees of CMCC in the scientific literature. 

ARTICLE XI 
 ASSIGNMENT

 CMCC may assign this Agreement to Children’s Hospital Boston or another Affiliate at any time without the prior written consent
of Licensee. Except as otherwise provided herein, this Agreement is not assignable or delegable, in whole or in part, by Licensee without the prior written consent of CMCC acting through an authorized designee, and any purported assignment otherwise
shall be void and of no effect. 
 Notwithstanding the foregoing, in the event Licensee merges with another entity, is acquired by another
entity, or sells all or substantially all of its assets to which this Agreement relates to another entity, Licensee may assign its rights and obligations hereunder to the surviving or acquiring entity if: (i) Licensee is not then in breach of
this Agreement; (ii) the proposed assignee demonstrates that it has a net worth at least equivalent to the net worth Licensee had as of the date of this Agreement; (iii) the proposed assignee demonstrates that it has or will have
sufficient available resources, including liquid financial resources, management experience, and sufficient scientific, business and other expertise comparable or superior to Licensee, that will be committed in order to satisfy its obligations
hereunder; (iv) Licensee provides written notice of the assignment to CMCC, together with documentation satisfactory to CMCC sufficient to demonstrate the requirements set forth in subparagraphs (i) through (iii) above, at least
thirty (30) days prior to the effective date of the assignment; and (v) CMCC receives from the assignee, in writing, at least thirty (30) days prior to the effective date of the assignment: (a) reaffirmation of the terms of this
Agreement; (b) an agreement to be bound by the terms of this Agreement; and (c) an agreement to perform the obligations of Licensee under this Agreement. 

ARTICLE XII 
 DISPUTE
RESOLUTION AND ARBITRATION 
 A. Any and all claims, disputes or controversies arising under, out of, or in connection with this
Agreement, which have not been resolved by good faith negotiations 

  
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between the parties shall be resolved by final and binding arbitration in Boston, Massachusetts, in accordance with the rules then obtaining applicable to the appointment of a single arbitrator
of the American Health Lawyers Association, or in the event such arbitration is not then available under those rules, the rules of the American Arbitration Association (“AAA”). All expenses and costs of the arbitrators and the
arbitration in connection therewith will be shared equally, except that each party will bear the costs of its prosecution and defense, including without limitation attorneys fees and the production of witnesses and other evidence. Any award rendered
in such arbitration shall be final and may be enforced by either party. 
 B. Notwithstanding the foregoing, nothing in this Agreement shall
be construed to waive any rights or timely performance of any obligations existing under this Agreement, including without limitation Licensee’s obligations to make royalty and other payments, and also, unless CMCC has terminated the License,
Licensee’s obligation to continue due diligence and development obligations. Notwithstanding any other provision of this Agreement, Licensee agrees that it shall not withhold or offset such payments, and agrees that Licensee’s sole remedy
for alleged breaches by CMCC is pursuant to this Article XII. 
 ARTICLE XIII 

TERM AND TERMINATION 
 A.
The Term of this Agreement shall be fifteen (15) years or the life of the last expiring Patent Right, whichever period is the longer term. 

B. Notwithstanding Article XII of this Agreement, CMCC may terminate this Agreement immediately upon (i) the bankruptcy, insolvency,
liquidation, dissolution or cessation of operations of Licensee; or (ii) the filing of any voluntary petition for bankruptcy, dissolution, liquidation or winding-up of the affairs of Licensee; or (iii) any assignment by Licensee for the
benefit of creditors; or (iv) the filing of any involuntary petition for bankruptcy, dissolution, liquidation or winding-up of the affairs of Licensee which is not dismissed within ninety (90) days of the date on which it is filed or
commenced; or (v) upon any final judicial or administrative determination that this Agreement violates, or if continued would violate, in a substantial manner, any provision of the Federal Internal Revenue Code, applicable rights of the United
States or obligations of CMCC under Title 15 of the United States Code, or other Federal or State laws applicable to CMCC 
 C. CMCC
may terminate this Agreement upon thirty (30) days’ prior written notice in the event of Licensee’s failure to pay to CMCC royalties due and payable hereunder in a timely manner, unless Licensee shall make all such payments to CMCC
within said thirty (30) day period. Notwithstanding Article XII of this Agreement, upon the expiration of the thirty (30) day period, if Licensee shall not have made all such payments to CMCC, the rights, privileges and licenses
granted hereunder shall terminate without further action by CMCC. Licensee may pay amount due under protest and the ultimate amount due determined under dispute resolution. 

D. Except as otherwise provided in Paragraphs B and C above, and notwithstanding Article XII of this Agreement, in the event that
Licensee shall default in the performance of any material obligations under this Agreement, and the default has not been remedied to CMCC’s 

  
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satisfaction within sixty days (60) after the date of notice in writing of such default, CMCC may by written notice to Licensee terminate this Agreement effective immediately or upon such
date as CMCC, in its sole discretion, shall designate in such notice. 
 E. Licensee shall have the right to terminate this Agreement at any
time upon four (4) months’ prior written notice to CMCC. 
 F. Upon termination of this Agreement for any reason, nothing herein
shall be construed to release either party from any obligation that matured prior to the effective date of such termination. 
 ARTICLE
XIV 
 PAYMENTS, NOTICES, AND OTHER COMMUNICATIONS 

All notices, reports and/or other communications made in accordance with this Agreement shall be sufficiently made or given if delivered by
hand, delivered by facsimile (with mechanical confirmation of transmission), or sent by overnight receipted mail, postage prepaid, or by reasonable, customary and reliable commercial overnight carrier in general usage, and addressed as follows: 

In the case of CMCC: 
 Chief
Intellectual Property Officer 
 Intellectual Property Office 

Children’s Hospital Boston 

300 Longwood Avenue 
 Boston, MA
02115 
 Payments shall be transmitted by reliable means to the same addressee, payable to Children’s Hospital Boston and annotated
with “CMCC Agreement # 6232” as well as written correspondence of what the payment is for. 
 In the case of Licensee: 

Peter Barrett 
 Chairman, Zafgen

 Senior Partner, Atlas Venture 

890 Winter Street, Suite 320 

Waltham, MA 02451 
 and 

Zafgen, Inc. 
 One Broadway, 16th Floor 
 Cambridge, MA 02142 

or such other address as either party shall notify the other in writing. NOTICE SHALL BE EFFECTIVE UPON RECEIPT. 

  
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 ARTICLE XV 

GENERAL PROVISIONS 
 A. All
rights and remedies hereunder will be cumulative and not alternative. This Agreement shall be construed and governed by the laws of the Commonwealth of Massachusetts. 

B. This Agreement may be amended only by written agreement signed by the parties. 

C. It is expressly agreed by the parties hereto that CMCC and Licensee are independent contractors and nothing in this Agreement is intended
to create an employer relationship, joint venture, or partnership between the parties. No party has the authority to bind the other. 
 D.
This Agreement constitutes the entire agreement between the parties with respect to the subject matter hereof and supersedes all proposals, representations, negotiations, agreements and other communications between the parties, whether written or
oral, with respect to the subject matter hereof. Where inconsistent with the terms of any contemporaneous related agreements (such as sponsored research agreements), terms in this Agreement shall control. 

E. If any provisions of this Agreement shall be held to be invalid, illegal or unenforceable, the validity, legality and enforceability of the
remaining provisions of this Agreement shall not be impaired thereby. 
 F. This Agreement may be executed in any number of counterparts,
each of which shall be deemed an original as against the party whose signature appears thereon, but all of which taken together shall constitute but one and the same instrument. 

G. The failure of either party to assert a right to which it is entitled, or to insist upon compliance with any term or condition of this
Agreement, shall not constitute a waiver of that right or excuse a similar subsequent failure to perform any such term or condition by the other party. 

H. Licensee agrees to mark any Licensed Products sold in the United States with all applicable United States patent numbers. All Licensed
Products shipped to or sold in other countries shall be marked in such a manner as to conform with the patent laws and practices of the country of manufacture or sale. 

I. Each party hereto agrees to execute, acknowledge and deliver such further instruments as may be necessary or appropriate to carry out the
purposes and intent of this Agreement. 
 J. The paragraph headings contained in this Agreement are for reference purposes only and shall
not in any way affect the meaning or interpretation of this Agreement. 

  
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 K. The signatories below are duly authorized to execute this Agreement. 

L. The parties agree that during the course of this Agreement, each may come into possession of confidential and/or proprietary materials or
information through intentional or accidental disclosure by the other. The parties agree to preserve the confidentiality of all such information known to be confidential or proprietary, unless the disclosing party consents in writing, or unless the
confidentiality of the material is lost through other parties not under obligations to preserve its confidentiality. 

  
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 IN WITNESS WHEREOF, the parties have executed this Agreement as of the date last written
below. 
  

			
	CHILDREN’S MEDICAL CENTER CORPORATION
		
	By:	 	 /s/ Brenda Manning, Ph.D.

		 	Brenda Manning, Ph.D.
		 	Director, Intellectual Property Officer
		
	Date:	 	 January 4, 2007

	
	LICENSEE (ZAFGEN, INC.)
		
	By:	 	 /s/ Peter Barrett

		 	Peter Barrett
		 	Chairman
		
	Date:	 	 January 4, 2007

  
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 APPENDIX 1 

Inter-Institutional Agreement 

  
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 INVENTION ADMINISTRATION AGREEMENT 

(CMCC #624/MIT #7760) 

This Agreement, effective the third day of August, 2004 (the “Effective Date”), is by and between Children’s Medical
Center Corporation (“CMCC”) a corporation duly organized and existing under the laws of the Commonwealth of Massachusetts with offices at 300 Longwood Avenue, Boston, MA 02115, USA and the Massachusetts Institute of
Technology (“MIT”) a corporation duly organized and existing under the laws of the Commonwealth of Massachusetts with offices at 77 Massachusetts Avenue, Cambridge, MA 02139, USA. The Institutions shall hereinafter also be
referred to collectively as the Parties. 
  

	I	BACKGROUND 

  

	1.1	[...***...] who assigns her patent rights jointly to CMCC and MIT, [...***...] who assigns his patent rights to CMCC and [...***...] who assigns his patent rights to MIT are joint inventors
of “[...***...]” (“Invention”), further described in the issued patents and patent applications listed in Appendix A. 

 

	1.2	The Parties desire that CMCC administer their respective undivided interests in the Invention. 

  

	1.3	The Parties desire that the Invention be successfully and diligently commercially developed and used for the good of mankind. 

  

	1.4	The Parties have determined that the cooperation and commercial development contemplated by this Agreement are consistent with their missions of research, education, teaching, and clinical care and with their status as
not for-profit institutions. 

  

	1.5	Parties agree that MIT has declined to continue paying for all foreign application counterparts of the Patent Rights and will receive none of the Licensing Income generated from a license to the foreign patent rights,
except as is necessary to reimburse MIT for any remaining Sunk Costs. 

  

	II.	DEFINITIONS 

  

	2.1	“Inventors(s)” shall mean [...***...] either collectively or individually. 

  

	2.2	“Patent Rights” shall mean any U.S. patent application (including Provisional Applications) which has or might be filed on the Invention, any continuations, divisions, claims of U.S.
continuations-in-part that name any Inventor that are directed to the subject matter specifically described in such applications and any patents which issue on said application including patents of addition, reissue, or re-examination, as well as
any foreign counterparts and any patents which issue thereon. Without limiting the foregoing, Patent Rights shall include applications and patents listed in Appendix A. 

  
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	2.3	“Licensing Income” shall mean gross proceeds received by CMCC from licensing or optioning Patent Rights, including but not limited to equity, license issue and maintenance fees, minimum royalties,
earned royalties, milestone payments and the like, but shall not include payments received for reimbursement of Patent Prosecution Expenses or funds received for research support. 

 

	2.4	“Patent Prosecution Expenses” shall mean all out-of-pocket expenses incurred by CMCC for the preparation, filing, prosecution, maintenance, and defense or enforcement of Patent Rights, as well as any
patent expenses incurred by MIT for the prosecution of Patent Rights prior to the Effective Date of this agreement. 

  

	2.5	“Licensing Expenses” shall mean any expenses incurred by CMCC in the marketing and licensing of Patent Rights. 

  

	2.6	“Administrative Fee” shall mean [...***...] percent ([...***...]%) of the remaining balance of Licensing Income after deduction of Patent Prosecution Expenses not reimbursed by a licensee,
which shall be retained by CMCC in consideration of its administration of Invention. 

  

	2.7	“Net Income” shall mean Licensing Income less any unreimbursed Patent Prosecution Expenses and less the Administrative Fee. 

 

	III.	ASSIGNMENT, TILING, PROSECUTION, MAINTENANCE AND DEFENSE/ENFORCEMENT OF PATENT RIGHTS 

  

	3.1	Upon the Effective Date, CMCC shall assume sole responsibility for filing, prosecution, maintenance and defense/enforcement of Patent Rights. All patent applications within Patent Rights shall be assigned jointly to the
Parties, if such applications are jointly owned, each of which shall have an undivided interest therein. CMCC shall provide or request legal counsel to provide MIT with all serial numbers and filing dates, as well as copies of patent applications,
office actions and other Patent Office correspondence, including copies of all issued patents. Copies of the above material shall be provided promptly so that MIT shall have an opportunity to comment. 

 

	3.2	The Parties shall share U.S. Patent Prosecution Expenses: 50% to CMCC and 50% to MIT. CMCC shall be responsible for 100% of Licensing Expenses, but will not receive any income in consideration for any Licensing Expenses
incurred except as included within the Administrative Fee. 

  

	3.3	Foreign Patent Prosecution Expenses incurred after the effective date of this agreement (a) shall be paid 100% by CMCC, and (b) shall not be the responsibility of MIT. By so doing (a) subject to the
rights of any Inventor, CMCC may proceed with foreign filings at its own expense and licensing of resulting rights without consulting MIT, and (b) MIT relinquishes any right to Licensing Income resulting from foreign filings, except as is
necessary to reimburse MIT for any remaining Sunk Costs. 

  
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	3.4	CMCC shall not abandon the prosecution of any U.S. patent application (except in favor of a continuation or continuation-in-part application, and except filings MIT has declined to participate in under Section 3.3)
without notifying MIT at least thirty (30) days in advance of any applicable deadline and allowing MIT the opportunity to prosecute such patent application. 

  

	3.5	The Parties shall cooperate fully regarding all patent filing, prosecution, maintenance, and defense/enforcement. 

  

	3.6	The Parties shall each assume responsibility for reporting the Invention to government and other sponsors as may be required. MIT shall provide CMCC with copies of reports to sponsors of the research. 

 

	3.7	On and after the effective date of this agreement, CMCC shall submit to MIT itemized invoices for fifty percent (50%) of the U.S. Patent Prosecution Expenses on a quarterly basis. MIT shall reimburse CMCC within
sixty (60) days of the invoice date. It is understood that as of the Effective Date, the Parties have incurred Patent Prosecution Expenses and received income as detailed in Appendix B. Should any License Agreement entered into by
CMCC on behalf of MIT not obtain full reimbursement for CMCC’s Sunk Costs (as defined in Appendix B), and MIT Sunk Costs (as defined in Appendix B), Licensing Income shall first be used to pay the unreimbursed portion of
MIT Sunk Costs and CMCC Sunk Costs. Any remaining and future Licensing Income shall be distributed according to Section 5.1. 

  

	3.8	The technology transfer office of each Party agrees that it will keep confidential, and shall not disclose to any third party, any information or data of any confidential nature contained in any patent application
claiming the Invention until such patent application has been filed. The Parties shall use reasonable efforts to keep each other, and the relevant patent attorneys, informed of any proposed publications or oral presentations to be made by its
employees or staff disclosing the Invention, and to provide the other Party with a copy of such proposed manuscript or presentation prior to the publication or presentation. 

 

	IV.	LICENSING 

  

	4.1	CMCC shall have sole responsibility for licensing Patent Rights. CMCC hereby agrees to use reasonable efforts to license Patent Rights in a commercially reasonable manner and in furtherance of the public interest. The
mere failure of CMCC to consummate a licensing arrangement(s) shall not be deemed a breach of CMCC’s obligations hereunder. 

  

	4.2	CMCC shall keep MIT reasonably informed of its licensing efforts and shall provide MIT with an opportunity to review a substantially complete draft of any license or option agreement(s) at least fifteen (l5) days prior
to execution thereof. 

  

	4.3	CMCC shall provide MIT with copies of all signed license and option agreements and all extensions thereof and amendments thereto. 

  
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	4.4	CMCC shall be responsible for administering all license and option agreements and shall keep MIT reasonably informed of licensee progress, and shall promptly respond to-any requests for information. 

 

	V.	REPORTS, PAYMENTS AND ACCOUNTING 

  

	5.1	Licensing Income received from licensing Patent Rights as well as any tangible material associated therewith shall be distributed as follows: 

 

	 	a)	First, any Patent Prosecution Expenses not being reimbursed by the licensee shall be deducted, commencing pro rata with each party’s Sunk Costs (as defined in Exhibit B). Both CMCC and MIT shall be
reimbursed to the extent of each Party’s obligations and right to reimbursement under Section 3.2. 

  

	 	b)	Second, in consideration of its efforts to administer and license Patent Rights, CMCC shall receive [...***...] percent ([...***...]%) of the balance of Licensing Income as an Administrative Fee.

  

	 	c)	Third, CMCC will distribute to all the inventors (including MIT inventors) according to CMCC internal policy. 

  

	 	d)	Fourth, the remaining balance shall be divided into income based on U.S. patents and income based on foreign patents, and of the income based on U.S. patents, CMCC shall receive 50% and MIT shall receive 50%, offset
however by any unsatisfied obligation under Section 3.2. 

  

	 	e)	Each Institution shall be solely responsible for any asserted claim of its own Inventor(s), and hereby agrees to indemnify and hold harmless the other Institution(s) against any Inventor’s claims so asserted,
including claims arising from the Institution’s default on meeting any obligations under this Agreement. 

  

	 	(f)	The parties recognize that Licensing Income in the form of licensee equity, whether as securities, warrants or otherwise, may be subject to special restrictions arising from its unregistered status, federal and state
laws and regulations, and the provisions of shareholder agreements. CMCC may negotiate for direct issuance of such equity to MIT, and MIT’s direct participation in shareholder agreements with legal terms substantially identical to those
governing the participation of CMCC, and relative financial terms corresponding to the distribution ratio stated in section 3.2. MIT will not withhold its consent to such agreements unless they would violate policies or common practices of MIT
or applicable laws or regulations. The deductions set out in paragraph 5.1(b) shall be addressed by adjusting the number of shares issued to or for the benefit of each institution; and the provisions of paragraphs (d) and (e) of this
Section 5.1 shall apply to all issuances and distributions of equity, as well as any distribution of cash proceeds. 

  
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	5.2	If reimbursement is received from a third party for Patent Prosecution Expenses that have already been partially reimbursed by MIT or CMCC, CMCC and MIT shall both be reimbursed in a manner consistent with the
Parties’ obligations under Section 3.2. 

  

	5.3	CMCC shall keep complete and accurate accounts of all Patent Prosecution Expenses and of all Licensing Income received from licenses and shall permit MIT to engage a certified public accounting firm, reasonably
acceptable to CMCC, to examine its records in order to verify the payments due or owing under this Agreement. MIT shall similarly cooperate in providing such documentation with respect to Patent Prosecution Expenses previously incurred by it, in
particular but not solely in connection with due diligence by prospective or potential licensees. 

  

	5.4	CMCC shall distribute Net Income to MIT concurrently with the distributions it makes for its own inventions, but in any case no later than June 30 for the preceding calendar year. With such distribution, CMCC shall
provide a financial accounting showing gross revenue received during the preceding calendar year and all deductions therefrom. 

  

	5.5	Upon request from MIT, CMCC shall provide a report, no more often than annually, setting forth the status of patent prosecution, licensing and commercial development. 

 

	VI.	TERMINATION 

  

	6.1	This Agreement shall terminate upon the last to expire patent included within Patent Rights, or upon the abandonment of all Patent Rights, or upon the termination of all license agreements relating to the Invention,
whichever event shall last occur. 

  

	6.2	At any time beginning three years after the Effective Date hereof, any Party may terminate this Agreement upon sixty (60) days’ written notice to the other Party, provided however, that, no such termination
shall be valid during an option or license period. In the event of termination, each Party shall still be responsible for its portion of Patent Prosecution and Licensing Expenses incurred prior to the effective date of termination, and the
terminating party shall pay its outstanding portion of expenses by the end of the sixty (60) days. Upon termination according to this clause, each Party shall have all of the rights to which it was entitled prior to execution of the Agreement,
including the right to license its rights to the Invention and the right to practice the Invention and Patent Rights for its internal research, scholarly, clinical and educational purposes. 

 

	VII.	MISCELLANEOUS 

  

	7.1	This Agreement may not be assigned by either Party without the written consent of the other Party. 

  

	7.2	This Agreement contains the entire understanding of the Parties with respect to the Invention and Patent Rights and may be amended only by mutual written agreement by the Parties. 

  
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	7.3	This Agreement shall be interpreted in and according to the laws of the Commonwealth of Massachusetts. 

  

	7.4	The provisions of this Agreement are separable and in the event that any of its provisions are determined to be invalid or unenforceable by a court of competent jurisdiction, such invalidity or unenforceability shall
not in any way affect the validity or enforceability of the remaining provisions. 

  

	7.5	No waiver by either Party hereto of any breach or default of any of this Agreement’s terms shall be deemed a waiver as to any subsequent and/or similar breach or default. Should either Party be in material breach
of this Agreement and that breach is not corrected within sixty (60) days (or thirty (30) days as provided in Article 3.7), the non-breaching Party may take such breach as termination by the breaching Party as provided in
Article VI. 

  

	7.6	Any notice to be given under this Agreement shall be in writing and shall be given by United States registered or certified mail, return receipt requested, addressed as follows: 

 

			
	If to CMCC:	  	 Chief Intellectual Property Officer

Intellectual Property Office
 Children’s Hospital Boston

300 Longwood Avenue
 Boston, MA 02115

Agreement # 5255

		
	If to MIT:	  	 Technology Licensing Office
 Massachusetts
Institute of Technology
 5 Cambridge Center, Kendall Square

Room NE25-230
 Cambridge, MA 02142

Attn: Director
 M.I.T. Case # 7760

 The Parties shall meet, negotiate in good faith, and attempt to resolve amicably, without litigation, any
controversy or any disputed claim by any party against any other party arising under or related to this Agreement. If the Parties are unable to resolve the matter themselves, prior to resort to litigation or arbitration they shall confer in good
faith with respect to the possibility of resolving the matter through mediation with a mutually acceptable third party. 
 Neither Party
shall use the name of the other Party or of any staff member, officer, employee or student of the other Party or any adaptation thereof in any advertising, promotional or sales literature, publicity or in any document employed to obtain funds
without the prior written approval of the Party or individual whose name is to be used. 

  
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	7.9	The Technology Licensing Office of MIT covenants to CMCC that, to its reasonable knowledge, the TLO has not entered into any other agreement licensing the Patent Rights. The Intellectual Property Office of CMCC
covenants to MIT that, to its reasonable knowledge, CMCC has not entered into any other agreement licensing the Patent Rights. Each Party covenants with the other that, to the best of its knowledge, it has full right and authority to enter into this
Agreement and perform its obligations hereunder. 

  
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 IN WITNESS WHEREOF, the Parties have executed this Agreement by their duly authorized
officers or representatives. 
  

			
	CMCC
		
	By:	 	 /s/ Donald P. Lombardi

		 	Donald P. Lombardi
		 	Chief Intellectual Property Officer
		
	Date:	 	 September 8, 2004

	
	MIT
		
	By:	 	 /s/ Lita L. Nelsen

		 	Lita L. Nelsen
		 	Director, Technology Licensing Office
		
	Date:	 	 September 3, 2004

  
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 APPENDIX A 

Patent Rights 
  

									
	 Country
	 	 Serial Number
	 	 Filing date
	 	 Patent/Pub No
	 	 Issue date

	 [...***...]
	 	[...***...]	 	[...***...]	 		 	
					
	 [...***...]
	 	[...***...]	 	[...***...]	 	[...***...]	 	[...***...]
					
	 [...***...]
	 	[...***...]	 	[...***...]	 	[...***...]	 	
					
	 [...***...]
	 	[...***...]	 	[...***...]	 		 	
					
	 [...***...]
	 	[...***...]	 	[...***...]	 		 	
					
	 [...***...]
	 	[...***...]	 	[...***...]	 		 	

 Entitled: “[...***...]” 

by: [...***...]. 

  
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 APPENDIX B 

Expenses incurred and income received by 

the Parties as of the Effective Date of this Agreement 
  

	I.	Patent prosecution expenses and income received by MIT: 

  

	A.	Expenses: 

 As of the Effective Date of this Agreement, MIT has incurred the following
patent prosecution expenses: 
  

	 	a.	$[...***...] paid to CMCC in reimbursement of patent prosecution expenses incurred by CMCC. Of this amount, $[...***...] was spent on foreign filings. 

 

	 	b.	$[...***...] paid directly to the attorneys in charge of patent prosecution. 

 In total
MIT incurred $[...***...] in patent prosecution expenses 
  

	B.	Income: 

 MIT had previously and on behalf of MIT and CMCC exclusively licensed the
Patent Rights to [...***...], and in consideration for such license and per Section 4.1 (a) of the license agreement effective February 16, 2001 ([...***...] License Agreement) MIT received from [...***...]
$[...***...], for reimbursement of patent prosecution expenses which was applied by MIT toward reimbursement of its own patent prosecution expenses. As a result of this partial reimbursement, the patent prosecution expenses incurred by MIT
have reached to date a total of $[...***...] in sunk costs (MIT Sunk Costs). 
 In addition, MIT received from [...***...] a
$[...***...] License Fee. MIT deducted a [...***...]% administrative fee ($[...***...]) from the $[...***...] License Fee it received from [...***...], leaving $[...***...]. The parties agree that upon
reimbursement of all MIT Sunk Costs, MIT will distribute the $[...***...], as stated in Section 3 of the [...***...], entered into and effective as of July 31, 2000. 

 

	II.	Patent prosecution expenses and Income received by CMCC. 

  

	A.	Expenses: 

 As of the Effective Date of this Agreement, CMCC has incurred
$[...***...] in patent prosecution expenses. 
  

	B.	Income: 

 As of the Effective Date of this Agreement, CMCC has received
$[...***...] from MIT in reimbursement of MIT share of patent prosecution expenses. 
 Therefore, and to date, CMCC has incurred
$[...***...] in patent prosecution expenses (CMCC Sunk Costs). 

  
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 APPENDIX 2 

[...***...] 
  

			
	Inventors:	  	[...***...]
		
	Assignees:	  	Children’s Medical Center Corporation and Massachusetts Institute of Technology

  

	1.	Patent Rights 

  

									
	 Country
	 	 Serial

Number
	 	 Filing Date
	 	 Patent Number
	 	 Status/ Issue Date

	 [...***...]
	 	[...***...]	 	[...***...]	 	[...***...]	 	[...***...]
	 [...***...]
	 	[...***...]	 	[...***...]	 		 	[...***...]
	 [...***...]
	 	[...***...]	 	[...***...]	 		 	[...***...]
	 [...***...]
	 	[...***...]	 	[...***...]	 		 	[...***...]
	 [...***...]
	 	[...***...]	 	[...***...]	 	[...***...]	 	[...***...]
	 [...***...]
	 	[...***...]	 	[...***...]	 	[...***...]	 	[...***...]
	 [...***...]
	 	[...***...]	 	[...***...]	 	[...***...]	 	[...***...]
	 [...***...]
	 	[...***...]	 	[...***...]	 	[...***...]	 	[...***...]
	 [...***...]
	 	[...***...]	 	[...***...]	 	[...***...]	 	[...***...]
	 [...***...]
	 	[...***...]	 	[...***...]	 	[...***...]	 	[...***...]
	 [...***...]
	 	[...***...]	 	[...***...]	 	[...***...]	 	[...***...]

  
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 APPENDIX 3 

Development Plan 

  
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 Zafgen, Inc. 

Development Plan 

December 2006 

Confidential 

  
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 LONG TERM DEVELOPMENT PLAN 2006-2016 

Objective: [...***...] 
 [...***...] 

  
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 NEAR TERM DEVELOPMENT PLAN 2006-2007 

Objective: [...***...] 
 [...***...]

  
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 NEAR TERM DEVELOPMENT PLAN 2008-2009 

Objective: [...***...] 
 [...***...]

  
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 AMENDMENT TO EXCLUSIVE LICENSE AGREEMENT 

This Amendment, effective January 15, 2007, is made between Zafgen, Inc., (“Licensee”) having an office located at 824 Winter
St Waltham, Massachusetts 02451 zip code and Children’s Medical Center Corporation (“CMCC”) having an office located at 300 Longwood Avenue, Boston, MA 02115. 

WHEREAS the parties have previously executed an exclusive license dated January 4, 2007 (the “Exclusive License
Agreement”); 
 WHEREAS the Parties agree that they would like to amend the Exclusive License Agreement; 

NOW THEREFORE the parties hereby agree to amend the Exclusive License Agreement as follows: 

 

	1.	Paragraph B. of Article VI (Patent Prosecution) shall be replaced in its entirety with the following new paragraph B.: 

  

	 	B.	Licensee shall reimburse CMCC for all out-of-pocket patent costs, past, present and future incurred by CMCC for the preparation, filing, prosecution and maintenance of patents underlying the Patent Rights provided CMCC
has not granted a license under Patent Rights to any third party. In the event CMCC grants a license under Patent Rights to a third party, Licensee’s obligation to pay on-going patent costs under this Agreement will be reduced in proportion to
the number of additional licensees. CMCC will notify Licensee promptly in writing when it grants a license under Patent Rights to any third party. CMCC will notify Licensee of CMCC’s determination of the amount of reduction of a payment due
under this Paragraph B. Patent costs are currently approximately $ [...***...]. Licensee shall pay $[...***...] of such current costs after the Effective Date of this Agreement and prior to February 1, 2007. Licensee shall pay the
remaining amount of $[...***...] upon the one (1) year anniversary of the Effective Date. Upon request of CMCC, and only upon such CMCC request, Licensee agrees to have CMCC’s patent counsel directly bill Licensee and Licensee shall
directly pay such invoices in compliance with such counsel’s customary business terms, but in any event within [...***...] days. If Licensee elects to no longer pay the expenses of a patent application or issued patent included within
Patent Rights in a given portion of the Territory, Licensee shall notify CMCC not less than [...***...] days prior to such action and shall thereby surrender its rights under such patent application, or issued patent to that Field of Use in
that portion of the Territory. Thereafter, Licensee will have no further financial obligations with respect to patent expenses for such patent application or issued patent and the license granted under Patent Rights in this Agreement will not
include such patent applications or issued patent. Such notice shall not relieve Licensee from responsibility to reimburse CMCC for patent-related expenses incurred prior to the expiration of the [...***...]-day notice period (or such longer
period specified in Licensee’s notice). CMCC shall then be free to license its rights to that patent or patent application to any other party on any other terms. 

  
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	2.	Except as specifically amended hereby, all terms of the Exclusive License Agreement shall remain in full force and effect. In the event of any conflicts between the Exclusive License Agreement and this Amendment, the
provisions of this Amendment shall prevail. 

 IN WITNESS WHEREOF, the parties hereto have executed this Agreement as
of the day and year first above written. 
  

			
	CHILDREN’S MEDICAL CENTER CORPORATION
		
	By:	 	 /s/ Brenda Manning, Ph.D.

		 	Brenda Manning, Ph.D.
		 	Director, Intellectual Property Officer
		
	Date:	 	 January 15, 2007

	
	LICENSEE (ZAFGEN, INC.)
		
	By:	 	 /s/ Peter Barrett

		 	Peter Barrett
		 	Chairman
		
	Date:	 	 January 19, 2007

  
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