Document:

EX-10.6

 EXHIBIT 10.6 

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

In consideration and as a condition of my employment or continued employment by Zafgen, Inc. (the “Company”), 1 hereby 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 that 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 that 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; and (d) operational and technological information, including plans, specifications, manuals, forms, templates,
software, designs, methods, procedures, formulas, discoveries, inventions, improvements, biological or chemical materials, 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 includes, without limitation, (1) information received in confidence by the Company from its
customers or suppliers or other third parties, and (2) 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 hereby
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 (as defined below) that:
(a) are created, developed, made, conceived or reduced to practice by me (alone or jointly with others) or under my direction (collectively, “conceived”) during the period of my employment and six (6) months thereafter and that
relate to the business of the Company or to products, methods or services being researched, developed, manufactured or sold by the Company; or (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, licensed or leased by the Company (collectively, “Company-Related Developments”), and all patent rights, trademarks, copyrights and other intellectual
property rights in all countries and territories worldwide claiming, covering or otherwise arising from or pertaining to Company-Related Developments (collectively, “Intellectual Property Rights”). I further agree that
“Company-Related Developments” include, without limitation, all Developments that 

 

  
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 (i) were conceived by me before my employment, (ii) relate to the business of the Company or to products,
methods or services being researched, developed, manufactured or sold by the Company, and (iii) were not subject to an obligation to assign to another entity when conceived. I will make full and prompt disclosure to the Company of all
Company-Related Developments, as well as all other Developments conceived by me during the period of my employment and six (6) months thereafter. I acknowledge that all work performed by me as an employee of the Company is on a “work for
hire” basis. I hereby waive all claims to any moral rights or other special rights which I may have or accrue in any Company-Related Developments. “Developments” mean inventions, discoveries, designs, developments, methods,
modifications, improvements, processes, biological or chemical materials, algorithms, databases, computer programs, formulae, techniques, trade secrets, graphics or images, audio or visual works, and other works of authorship. 

To preclude any possible uncertainty, I have set forth on Exhibit A attached hereto a complete list of Developments conceived by me before my
employment that are not Company-Related Developments (“Prior Inventions”). I have also listed on Exhibit A all patent rights of which I am an inventor, other than those contained within Intellectual Property Rights (“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, 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, offer for sale, import and sell 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. 
 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 Section will be interpreted not to apply to any invention which a court rules and/or the Company agrees falls within such classes.

 6. Documents and Other Materials. I will keep and maintain adequate and current records of all
Proprietary Information and Company-Related Developments conceived by me, 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, materials or other written, photographic or other tangible material containing or embodying 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. In the event of the termination of my employment for any
reason, I will deliver to the Company all of the foregoing, and all 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.
Any property situated on the Company’s premises and owned by the Company, including laboratory space, 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. 
 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, as well as all other patent rights, trademarks, copyrights and other intellectual property rights in all countries and territories
worldwide owned by or licensed to the Company. I will sign, both during and after the term of this Agreement, all papers, including 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. 

 

  
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 8. Non-Competition and Non-Solicitation. In order to protect the Company’s Proprietaiy
Information and good will, during my employment and for a period of one (1) year following the termination of my employment for any reason (the “Restricted Period”), I will not directly or indirectly, whether as owner, partner,
shareholder, director, 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 has under development or that are the subject of active planning at any time during my employment; provided that this will 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 or take away any of the customers, business or prospective customers of the Company or any of its suppliers, and/or (b) solicit, entice or attempt to persuade any other employee or
consultant of the Company to leave the services of the Company for any reason. I acknowledge and agree that if I violate any of the provisions of this Section, 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 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 Section 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. 
 12. 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. 
 13. 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. 

14. 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

 

  
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 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. 
 15. Disclosure to
Future Employers. I will provide a copy of this Agreement to any prospective employer, partner or co-venturer prior to entering into an employment, partnership or other business relationship with such person or entity. 

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. During the Restricted Period 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. Severability. In case any provisions (or portions thereof) contained in this Agreement will, for any reason, be held invalid, illegal or
unenforceable in any respect, such invalidity, illegality or unenforceability will not affect the other provisions of this Agreement, and this Agreement will 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 will for any reason be held to be excessively broad as to duration, geographical scope, activity or subject, it
will be construed by limiting and reducing it, so as to be enforceable to the extent compatible with the applicable law as it will then appear. 
 18.
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. 
 19. 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”. 

 

  
 BY SIGNING BELOW, I
CERTIFY THAT I HAVE READ THIS AGREEMENT 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/ Thomas E. Hughes

		 	(Employee’s full name)

  

			
	Type or print name: Thomas E. Hughes	  	
		  	Date: 7-29-2008

  
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 EXHIBIT A 
  

			
	To:	  	Zafgen, Inc.
		
	From:	  	Thomas E. Hughes
		
	Date:	  	7-29-2008
		
	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: 
  

					
	        þ	  	No inventions or improvements	  	
			
	         ̈	  	See below:	  	
			
		  	  
	  	
			
		  	  
	  	
			
		  	  
	  	
			
		  	  
	  	
			
		  	  
	  	
			
		  	  
	  	
			
		  	  
	  	
			
	         ̈	  	Additional sheets attached	  	
		
	        The following is a list of all patents, patent applications and other patent rights that I invented:	  	
			
	         ̈	  	None	  	
			
	        þ	  	See below:	  	
		
		  	Multiple applications in the field of type 2 diabetes and 1 on obesity and 1 on dyslipidemia and/or cardiovascular disorders -are rights to which have been fully assigned to Novartis on a company in the Novartis
family of companies.EX-10.7

 EXHIBIT 10.7 
  

 
 One Broadway, 8th Floor 

Cambridge, MA 02142 
 Confidential

 August 23, 2011 
 Dr. Dennis Kim 

6648 Muirlands Drive 
 La Jolla, CA 92037 

 

	 	Re:	Employment Offer 

 Dear Dennis: 

On behalf of Zafgen, Inc., a Delaware corporation (the “Company”), I am pleased to offer employment to you. The purpose of this
letter is to outline the terms for your employment. 
 Position: Your initial position with the Company will be Chief Medical
Officer. 
 Start Date: Unless otherwise agreed, your first day of employment will be September 5, 2011. 

Salary: The Company will pay you an annual salary of $325,000 at a semi-monthly rate of $13,541.66, subject to periodic review and
adjustment at the discretion of the Company. 
 Bonus: You will be eligible to receive an annual performance bonus. The Company will
target the bonus at up to 25% of your annual salary rate. The actual bonus percentage is discretionary and will be subject to the Company’s assessment of your performance, as well as business conditions at the Company. The bonus also will be
subject to your employment for the full period covered by the bonus, approval by and adjustment at the discretion of the Company’s Board of Directors and the terms of any applicable bonus plan. The Company expects to review your job performance
on an annual basis and will discuss with you the criteria which the Company will use to assess your performance for bonus purposes. The Company’s Board of Directors may also make adjustments in the targeted amount of your annual performance
bonus. 
 Benefits: You will be eligible to participate in the employee benefits and insurance programs generally made available to
its full-time employees, including health, life, disability and dental insurance. Details of these benefits programs, including mandatory employee contributions, will be made available to you when you start. You also will be eligible to receive paid
vacation time. You will be eligible for up to 15 days of paid vacation per year, which shall accrue on a prorated basis. Other provisions of the Company’s vacation policy are set forth in the policy itself. 

 Stock Options: You will be eligible to participate in the Company’s stock option
program, subject to approval by the Board of Directors. We will recommend to the Board of Directors at its next meeting after you join the Company that you be granted an option to purchase 900,000 shares of the Company’s common stock at the
stock’s then fair market value. Your eligibility for stock options will be governed by the Amended and Restated 2006 Stock Option Plan and any associated stock option agreement required to be entered into by you and the Company. 

Your stock options shall vest in accordance with the Company’s standard vesting policy; provided, however, that if a Change of Control
(defined below) occurs within the first 6 months of your start date, 50% of your unvested options shall vest, effective upon the consummation of such Change in Control. 

“Change of Control” shall mean (i) the acquisition of beneficial ownership (as defined in Rule 13d-3 under the Exchange Act)
directly or indirectly by any “person” (individual, a corporation, a partnership or any other entity or organization other than the Company or any of its Affiliates) of securities of the Company representing a majority or more of the
combined voting power of the Company’s then outstanding securities, other than an acquisition of securities for investment purposes pursuant to a bona fide financing of the Company; (ii) a merger or consolidation of the Company with any
other corporation in which holders of the voting securities of the Company prior to the merger of consolidation do not own more than 50% of the total voting securities of the surviving corporation; or (iii) the sale or disposition by the
company of all or substantially all of the Company’s assets other than a sale or disposition of assets to an Affiliate of the Company or holders of securities of the Company. 

Severance: Your employment is “at will,” meaning you or the Company may terminate it at any time for any or no reason. In the
event of the termination of your employment for any reason, the Company shall pay you (1) your base salary through the date of termination, (2) an amount equal to the value of your accrued unused vacation days, and (3) the amount of
any expenses properly incurred by you on behalf of the Company prior to any such termination and not yet reimbursed. In addition, in the event the Company terminates your employment without Cause or you resign for Good Reason (both as defined
below), the Company shall provide you with continuation of your base salary for a period of two (2) months after the date of termination at the salary rate then in effect (“Salary Continuation Payments”) (solely for purposes of
Section 409A of the Internal Revenue Code of 1986, as amended, each Salary Continuation Payment is considered a separate payment (the “Termination Benefits”). 

Notwithstanding anything to the contrary in this letter, you shall not be entitled to any Termination Benefits unless you first (i) enter into, do not
revoke, and comply with the terms of a separation agreement in a form acceptable to the Company which shall include a release against the Company and related persons and entities (the “Release”); (ii) resign from any and all positions
that you then hold with the Company and any affiliate of the Company; and (iii) return all Company property and comply with any instructions related to deleting and purging duplicates of such Company property. The Salary Continuation Payments shall
commence within 60 days after the date of termination and shall be made on the Company’s regular payroll 

 
dates; provided, however, that if the 60-day period begins in one calendar year and ends in a second calendar year, the Salary Continuation Payments shall begin to be paid in the second calendar
year. In the event you miss a regular payroll period between the date of termination and first Salary Continuation Payment, the first Salary Continuation Payment shall include a “catch up” payment. 

“Cause” means any of the following: (i) dishonesty, embezzlement, misappropriation of assets or property of the Company; (ii) gross
negligence, misconduct, neglect of duties, theft, fraud, or breach of fiduciary duty to the Company; (iii) violation of federal or state securities laws; (iv) breach of an employment, consulting or other agreement with the Company;
(v) the conviction of a felony, or any crime involving moral turpitude, including a plea of guilty or nolo contendre; or (v) material unsatisfactory performance as determined by the Board after written notice and a thirty (30) day
opportunity to cure. 
 “Good Reason” means that you have complied with the “Good Reason Process” (hereinafter defined) following the
occurrence of any of the following actions undertaken by the Company without your express prior written consent: (i) the material diminution in your responsibilities, authority and function; (ii) a material reduction in your base salary,
provided, however, that Good Reason shall not be deemed to have occurred in the event of a reduction in your base salary that is pursuant to a salary reduction program affecting substantially all of the senior level employees of the Company and that
does not adversely affect you to a greater extent than other similarly situated employees; or (iii) a material change in the geographic location at which you must regularly report to work and perform services, except for required travel on the
Company’s business. “Good Reason Process” means that (i) you have reasonably determined in good faith that a “Good Reason” condition has occurred; (ii) you have notified the Company in writing of the first
occurrence of the Good Reason condition within 60 days of the first occurrence of such condition; (iii) you have cooperated in good faith with the Company’s efforts, for a period not less than 30 days following such notice (the “Cure
Period”), to remedy the condition; (iv) notwithstanding such efforts, the Good Reason condition continues to exist; and (v) you terminate your employment within 60 days after the end of the Cure Period. If the Company cures the Good
Reason condition during the Cure Period, Good Reason shall be deemed not to have occurred. 
 Taxes; Section 409A. All forms of
compensation referred to in this letter are subject to reduction to reflect applicable withholding and payroll taxes and other deductions required by law. You hereby acknowledge that the Company does not have a duty to design its compensation
policies in a manner that minimizes your tax liabilities, and you will not make any claim against the Company or its board of directors related to tax liabilities arising from your compensation. Anything in this letter to the contrary
notwithstanding, if at the time of your separation from service within the meaning of Section 409A of the Code, the Company determines that you are a “specified employee” within the meaning of Section 409A(a)(2)(B)(i) of the
Code, then to the extent any payment or benefit that you becomes entitled to under this letter on account of your separation from service would be considered deferred compensation subject to the 20 percent additional tax imposed pursuant to
Section 409A(a) of the Code as a result of the application of Section 409A(a)(2)(B)(i) of the Code, such payment shall not be payable and such benefit shall not be provided until the date that is the earlier of (A) six months and one
day after your separation from service, or (B) your death. If any such delayed cash payment is otherwise payable on an installment basis, the first payment shall include a catch-up payment covering 

 
amounts that would otherwise have been paid during the six-month period but for the application of this provision, and the balance of the installments shall be payable in accordance with their
original schedule. All in-kind benefits provided and expenses eligible for reimbursement under this letter shall be provided by the Company or incurred by you during the time periods set forth in this letter. All reimbursements shall be paid as soon
as administratively practicable, but in no event shall any reimbursement be paid after the last day of the taxable year following the taxable year in which the expense was incurred. The amount of in-kind benefits provided or reimbursable expenses
incurred in one taxable year shall not affect the in-kind benefits to be provided or the expenses eligible for reimbursement in any other taxable year. Such right to reimbursement or in-kind benefits is not subject to liquidation or exchange for
another benefit. To the extent that any payment or benefit described in this Employment Agreement constitutes “non-qualified deferred compensation” under Section 409A of the Code, and to the extent that such payment or benefit is
payable upon your termination of employment, then such payments or benefits shall be payable only upon your “separation from service.” The determination of whether and when a separation from service has occurred shall be made in accordance
with the presumptions set forth in Treasury Regulation Section 1.409A-1(h). The Company and you intend that this letter will be administered in accordance with Section 409A of the Code. To the extent that any provision of this letter is
ambiguous as to its compliance with Section 409A of the Code, the provision shall be read in such a manner so that all payments hereunder comply with Section 409A of the Code. The Company makes no representation or warranty and shall have
no liability to you or any other person if any provisions of this letter are determined to constitute deferred compensation subject to Section 409A of the Code but do not satisfy an exemption from, or the conditions of, such Section. 

Representation Regarding Other Obligations: This offer is conditioned on your representation that you are not subject to any
confidentiality, non-competition agreement or any other similar type of restriction that may affect your ability to devote full time and attention to your work at Company. If you have entered into any agreement that may restrict your activities on
behalf of the Company, please provide me with a copy of the agreement as soon as possible. 
 Other Terms: Your employment with the
Company shall be on an at-will basis and will be based at the Company’s office in Cambridge, Massachusetts. You or the Company may terminate employment for any reason and at any time, with or without notice. Similarly, the terms of employment
outlined in this letter are subject to change at any time. You also will be required to sign the Company’s standard Employee Non-Competition, Non-Solicitation, Confidentiality and Assignment Agreement as a condition of your employment. A copy
of that Agreement is enclosed. This offer and Agreement shall be governed by the laws of the Commonwealth of Massachusetts. In addition, as with all employees, our offer to you is contingent on your submission of satisfactory proof of your identity
and your legal authorization to work in the United States. 
 We are excited about the opportunity to work with you at Zafgen, Inc. If you
have any questions about this information, please do not hesitate to call. Otherwise, please confirm your acceptance of this offer of employment by signing below and returning a copy to me no later than August 30, 2011. We are confident that with
you background and skills, you will have an immediate positive impact on our organization. 
 Very truly yours, 

 Enclosures 
  

	
	/s/ Thomas Hughes
	Thomas Hughes, President

 ACKNOWLEDGED AND AGREED: 
  

	
	/s/ Dennis Kim             Sep 01, 2011
	Dr. Dennis Kim

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