Document:

EX-10.12

 Exhibit 10.12 

SYNDAX PHARMACEUTICALS, INC. 

2013 EMPLOYEE STOCK PURCHASE PLAN 

The Board of Directors of the Company has adopted this 2013 Employee Stock Purchase Plan to enable eligible employees of the Company and its
Participating Affiliates, through payroll deductions or other cash contributions, to purchase shares of Common Stock. The Plan is for the benefit of the employees of the Company and any Participating Affiliates. The Plan is intended to benefit the
Company by increasing the employees’ interest in the Company’s growth and success and encouraging employees to remain in the employ of the Company or its Participating Affiliates. The provisions of the Plan are set forth below: 

 

	1.	DEFINITIONS 

 (a) “Board” means the Board of Directors of the Company.

 (b) “Code” means the Internal Revenue Code of 1986, as amended. 

(c) “Committee” means a committee of, and designated from time to time by resolution of, the Board. 

(d) “Common Stock” means the Company’s common stock, par value $0.0001 per share. 

(e) “Company” means Syndax Pharmaceuticals, Inc., a Delaware corporation. 

(f) “Effective Date” means the date of the closing of the Company’s initial public offering. 

(g) “Fair Market Value” means the value of each share of Common Stock subject to the Plan on a given date determined as
follows: if on such date the shares of Common Stock are listed on an established national or regional stock exchange or are publicly traded on an established securities market, the fair market value of the shares of Common Stock shall be the closing
price of the shares of Common Stock on such exchange or in such market (the exchange or market selected by the Board if there is more than one such exchange or market) on such date or, if such date is not a trading day, on the trading day
immediately preceding such date, or, if no sale of the shares of Common Stock is reported for such trading day, on the next preceding day on which any sale shall have been reported. If the shares of Common Stock are not listed on such an exchange or
traded on such a market, fair market value shall be determined by the Board in good faith. 
 (h) “Offering Period” means
the period determined by the Committee pursuant to Section 8, which period shall not exceed 27 months, during which payroll deductions or other cash payments are accumulated for the purpose of purchasing Common Stock under the Plan. 

(i) “Participating Affiliate” means any company or other trade or business that is a subsidiary of the Company (determined in
accordance with the principles of Sections 424(e) and (f) of the Code and the regulations thereunder). 
 (j) “Plan”
means the Syndax Pharmaceuticals, Inc. 2013 Employee Stock Purchase Plan. 
 (k) “Purchase Period” means the period
designated by the Committee on the last trading day of which purchases of Common Stock are made under the Plan. 

 (l) “Purchase Price” means the purchase price of each share of Common Stock
purchased under the Plan. 
  

	2.	SHARES SUBJECT TO THE PLAN 

 (a) Subject to adjustment as provided in Section 27,
the aggregate number of shares of Common Stock that may be made available for purchase by participating employees under the Plan is                  shares. In addition,
the number of shares of Common Stock available for purchase by participating employees under the Plan shall automatically increase on January 1st of each year, commencing January 1, 2015 and continuing until the expiration of the Plan, in
an amount equal to the lesser of (a) 1% of the total number of shares of Common Stock outstanding on December 31st of the preceding calendar year, or
(b)                  shares of Common Stock. Notwithstanding the foregoing, the Board may act prior to the first day of any calendar year to provide that there
shall be no increase in the share reserve for such calendar year or that the increase in the share reserve for such calendar year shall be a lesser number of shares of Common Stock than would otherwise occur pursuant to the preceding sentence. 

(b) The shares issuable under the Plan may, in the discretion of the Board, be authorized but unissued shares, treasury shares, or shares
purchased on the open market. 
  

	3.	ADMINISTRATION 

 The Plan shall be administered under the direction of the Committee. No
member of the Board or the Committee shall be liable for any action or determination made in good faith with respect to the Plan. 
  

	4.	INTERPRETATION 

 It is intended that the Plan will meet the requirements for an
“employee stock purchase plan” under Section 423 of the Code, and it is to be so applied and interpreted. Subject to the express provisions of the Plan, the Committee shall have authority to interpret the Plan, to prescribe, amend and
rescind rules relating to it, and to make all other determinations necessary or advisable in administering the Plan, all of which determinations will be final and binding upon all persons. 

 

	5.	ELIGIBLE EMPLOYEES 

 Any employee of the Company or any of its Participating Affiliates
may participate in the Plan, except the following, who are ineligible to participate: (a) an employee whose customary employment is less than 20 hours per week; and (b) an employee who, after exercising his or her rights to
purchase shares under the Plan, would own shares of Common Stock (including shares that may be acquired under any outstanding options) representing five percent or more of the total combined voting power of all classes of stock of the Company. For
purposes of the Plan, the employment relationship will be treated as continuing intact while the individual is on sick leave or other leave of absence that the Company or any of its Participating Affiliates approves or which meets the requirements
of Treasury Regulations section 1.421-1(h)(2). Where the period of leave exceeds three (3) months and the individual’s right to reemployment is not guaranteed either by statute or by contract, the employment relationship will be deemed to
have terminated three (3) months and one (1) day following the commencement of such leave. The Board may at any time in its sole discretion, if it deems it advisable to do so, terminate the participation of the employees of a particular
Participating Affiliate. 

  
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	6.	PARTICIPATION IN THE PLAN 

 An eligible employee may become a participating employee in
the Plan by completing an election to participate in the Plan on a form provided by the Company and submitting that form to the Company’s Payroll Department. The form will authorize: (a) payment of the Purchase Price by payroll deductions,
and if authorized by the Committee, payment of the Purchase Price by means of periodic cash payments from participating employees; and (b) the purchase of shares of Common Stock for the employee’s account in accordance with the terms of
the Plan. Enrollment will become effective upon the first day of an Offering Period. 
  

	7.	OFFERINGS 

 At the time an eligible employee submits his or her election to participate
in the Plan (as provided in Section 6), the employee shall elect to have deductions made from his or her pay on each pay day following his or her enrollment in the Plan, and for as long as he or she shall participate in the Plan. The deductions
will be credited to the participating employee’s account under the Plan. Pursuant to Section 6, the Committee shall also have the authority to authorize in the election form the payment for shares of Common Stock through cash payments from
participating employees. An employee may not during any Offering Period change his or her percentage of payroll deduction for that Offering Period, nor may an employee withdraw any contributed funds, other than in accordance with Sections 16 through
21. 
  

	8.	OFFERING PERIODS AND PURCHASE PERIODS 

 The Committee shall determine the Offering
Periods and Purchase Periods. The first Offering Period under the Plan shall commence on the date determined by the Committee. Each Offering Period shall consist of one or more Purchase Periods, as determined by the Committee. 

 

	9.	RIGHTS TO PURCHASE COMMON STOCK; PURCHASE PRICE 

 Rights to purchase shares of Common
Stock will be deemed granted to participating employees as of the first trading day of each Offering Period. The Purchase Price of each share of Common Stock shall be determined by the Committee; provided, however, that the Purchase Price
shall not be less than the lesser of 85 percent of the Fair Market Value of the Common Stock (i) on the first trading day of the Offering Period, or (ii) on the last trading day of the Purchase Period; provided further, that in no
event shall the Purchase Price be less than the par value of the Common Stock. 
  

	10.	TIMING OF PURCHASE 

 Unless a participating employee has given prior written notice
terminating such employee’s participation in the Plan, or the employee’s participation in the Plan has otherwise been terminated as provided in Sections 17 through 21, such employee will be deemed to have automatically exercised his
or her right to purchase Common Stock on the last trading day of the Purchase Period (except as provided in Section 16) for the number of shares of Common Stock that the accumulated funds in the employee’s account at that time will
purchase at the Purchase Price, subject to the participation adjustment provided for in Section 15 and subject to adjustment under Section 27. 
  

	11.	PURCHASE LIMITATION 

 Notwithstanding any other provision of the Plan, no employee may
purchase in any Offering Period or in any one calendar year under the Plan and all other “employee stock purchase plans” of the Company and its Participating Affiliates shares of Common Stock having an aggregate Fair Market Value in excess
of $25,000, determined as of the first trading date of the Offering Period as to shares purchased 

  
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during such period; provided, however, that the Committee may in its discretion, prior to the start of an Offering Period, set a limit on the number or value of shares of Common Stock an
employee may purchase during the Offering Period. Effective upon the last trading day of the Purchase Period, a participating employee will become a stockholder with respect to the shares purchased during such period, and will thereupon have all
dividend, voting and other ownership rights incident thereto except as otherwise provided in Section 12. Notwithstanding the foregoing, no shares shall be sold pursuant to the Plan unless the Plan is approved by the Company’s stockholders
in accordance with Section 26. 
  

	12.	ISSUANCE OF STOCK CERTIFICATES AND SALE OF PLAN SHARES 

 On the last trading day of the
Purchase Period, a participating employee will be credited with the number of shares of Common Stock purchased for his or her account under the Plan during such Purchase Period. Shares purchased under the Plan will be held in the custody of an agent
(the “Agent”) appointed by the Board. The Agent may hold the shares purchased under the Plan in stock certificates in nominee names and may commingle shares held in its custody in a single account or in stock certificates without
identification as to individual participating employees. 
 The Committee shall have the right to require any or all of the following with
respect to shares of Common Stock purchased under the Plan: 
 (a) that a participating employee may not request that all or part of the
shares of Common Stock be reissued in the employee’s own name and the stock certificates delivered to the employee until two years (or such shorter period of time as the Committee may designate) have elapsed since the first day of the Offering
Period in which the shares were purchased and one year has elapsed since the day the shares were purchased (the “Holding Period”); 

(b) that all sales of shares during the Holding Period applicable to such shares be performed through a licensed broker acceptable to the
Company; and 
 (c) that participating employees abstain from selling or otherwise transferring shares of Common Stock purchased pursuant to
the Plan for a period lasting up to two years from the date the shares were purchased pursuant to the Plan. 
  

	13.	WITHHOLDING OF TAXES 

 To the extent that a participating employee recognizes ordinary
income in connection with a sale or other transfer of any shares of Common Stock purchased under the Plan, the Company may withhold amounts needed to cover such taxes from any payments otherwise due and owing to the participating employee or from
shares that would otherwise be issued to the participating employee under the Plan. Any participating employee who sells or otherwise transfers shares purchased under the Plan within two years after the beginning of the Offering Period in which the
shares were purchased must within 30 days of such transfer notify the Company’s Payroll Department in writing of such transfer. 
  

	14.	ACCOUNT STATEMENTS 

 The Company will cause the Agent to deliver to each participating
employee a statement for each Purchase Period during which the employee purchases Common Stock under the Plan, reflecting the amount of payroll deductions during the Purchase Period, the number of shares purchased for the employee’s account,
the price per share of the shares purchased for the employee’s account and the number of shares held for the employee’s account at the end of the Purchase Period. 

  
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	15.	PARTICIPATION ADJUSTMENT 

 If in any Purchase Period the number of unsold shares that may
be made available for purchase under the Plan pursuant to Section 2 is insufficient to permit exercise of all rights deemed exercised by all participating employees pursuant to Section 10, a participation adjustment will be made, and the
number of shares purchasable by all participating employees will be reduced proportionately. Any funds then remaining in a participating employee’s account after such exercise will be refunded to the employee. 

 

	16.	CHANGES IN ELECTIONS TO PURCHASE 

 (a) Ceasing Payroll Deductions or Periodic
Payments. A participating employee may, at any time prior to the last trading day of the Purchase Period, by written notice to the Company, direct the Company to cease payroll deductions (or, if the payment for shares is being made through
periodic cash payments, notify the Company that such payments will be terminated), in accordance with the following alternatives: 
 (i) The
employee’s option to purchase shall be reduced to the number of shares that may be purchased, as of the last day of the Purchase Period, with the amount then credited to the employee’s account; or 

(ii) Withdraw the amount in such employee’s account and terminate such employee’s option to purchase. 

(b) Decreasing Payroll Deductions During a Purchase Period. A participating employee may decrease his or her rate of contribution once
during a Purchase Period (but not below $10.00 per pay period) by delivering to the Company a new form regarding election to participate in the Plan under Section 6. 

(c) Modifying Payroll Deductions or Periodic Payments at the Start of an Offering Period. Any participating employee may increase or
decrease his or her payroll deduction or periodic cash payments, to take effect on the first day of the next Offering Period, by delivering to the Company a new form regarding election to participate in the Plan under Section 6. 

 

	17.	TERMINATION OF EMPLOYMENT 

 In the event a participating employee’s employment with
the Company or a Participating Affiliate terminates, or is deemed terminated, for any reason other than death prior to the last day of the Purchase Period, the amount in the employee’s account will be distributed, and the employee’s option
to purchase will terminate. 
  

	18.	AUTHORIZED LEAVE OF ABSENCE OR DISABILITY 

 Payroll deductions for shares for which a
participating employee has an option to purchase may be suspended during any period of absence of the employee from work due to an authorized leave of absence or disability or, if the employee so elects, periodic payments for such shares may
continue to be made in cash. 
 If such participating employee returns to active service prior to the last day of the Purchase Period, the
employee’s payroll deductions will be resumed, and if such employee did not make periodic cash payments during the employee’s period of absence, the employee shall, by written notice to the Company’s Payroll Department within ten days
after the employee’s return to active service, but not later than the last day of the Purchase Period, elect: 

  
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 (a) To make up any deficiency in the employee’s account resulting from a suspension of
payroll deductions by an immediate cash payment; 
 (b) Not to make up such deficiency, in which event the number of shares to be purchased
by the employee shall be reduced to the number of whole shares which may be purchased with the amount, if any, then credited to the employee’s account plus the aggregate amount, if any, of all payroll deductions to be made thereafter; or 

(c) Withdraw the amount in the employee’s account and terminate the employee’s option to purchase. 

A participating employee on authorized leave of absence or disability on the last day of the Purchase Period who is still an eligible employee
under Section 5 shall deliver written notice to his or her employer on or before the last day of the Purchase Period, electing one of the alternatives provided in the foregoing Sections 18(a), 18(b) and 18(c). If any employee fails to deliver
such written notice within ten days after the employee’s return to active service or by the last day of the Purchase Period, whichever is earlier, the employee shall be deemed to have elected Section 18(c). 

 

	19.	DEATH 

 In the event of the death of a participating employee while the employee’s
option to purchase shares is in effect, the legal representatives of such employee may, within three months after the employee’s death (but no later than the last day of the Purchase Period) by written notice to the Company or Participating
Affiliate, elect one of the following alternatives: 
 (a) The employee’s option to purchase shall be reduced to the number of shares
that may be purchased, as of the last day of the Purchase Period, with the amount then credited to the employee’s account; or 
 (b)
Withdraw the amount in such employee’s account and terminate such employee’s option to purchase. 
 In the event the legal
representatives of such employee fail to deliver such written notice to the Company or Participating Affiliate within the prescribed period, the election to purchase shares shall terminate and the amount then credited to the employee’s account
shall be paid to such legal representatives. 
  

	20.	FAILURE TO MAKE PERIODIC CASH PAYMENTS 

 Under any of the circumstances contemplated by
this Plan, where the purchase of shares is to be made through periodic cash payments in lieu of payroll deductions, the failure to make any such payments shall reduce, to the extent of the deficiency in such payments, the number of shares
purchasable under this Plan by the participating employee. 
  

	21.	TERMINATION OF PARTICIPATION 

 A participating employee will be refunded all moneys in
his or her account, and his or her participation in the Plan will be terminated if (a) the Board elects to terminate the Plan as provided in Section 26, (b) the employee ceases to be eligible to participate in the Plan under
Section 5, or (c) in accordance with Sections 17 and 18. As soon as practicable following termination of an employee’s participation in the Plan, the Company will deliver to the employee a check representing the amount in the
employee’s account and a stock certificate representing the number of whole shares held in the 

  
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employee’s account. Once terminated, participation may not be reinstated for the then-current Offering Period, but, if otherwise eligible, the employee may elect to participate in any
subsequent Offering Period. 
  

	22.	TRANSFER; ASSIGNMENT 

 No participating employee may transfer or assign his or her rights
to purchase shares of Common Stock under the Plan, whether voluntarily, by operation of law or otherwise. Any payment of cash or issuance of shares of Common Stock under the Plan may be made only to the participating employee (or, in the event of
the employee’s death, to the employee’s estate). During a participating employee’s lifetime, only such participating employee may exercise his or her rights to purchase shares of Common Stock under the Plan. Once a stock certificate
has been issued to the employee or the employee’s estate for his or her account, such certificate may be assigned the same as any other stock certificate. 
  

	23.	APPLICATION OF FUNDS 

 All funds received or held by the Company under the Plan may be
used for any corporate purpose until applied to the purchase of Common Stock and/or refunded to participating employees. Participating employees’ accounts will not be segregated. 

 

	24.	NO RIGHT TO CONTINUED EMPLOYMENT 

 Neither the Plan nor any right to purchase Common
Stock under the Plan confers upon any employee any right to continued employment with the Company or any of its Participating Affiliates, nor will an employee’s participation in the Plan restrict or interfere in any way with the right of the
Company or any of its Participating Affiliates to terminate the employee’s employment at any time. 
  

	25.	AMENDMENT OF THE PLAN 

 The Board may, at any time, amend the Plan in any respect
(including an increase in the percentage specified in Section 9 used in calculating the Purchase Price); provided, however, that without approval of the stockholders of the Company no amendment shall be made (a) increasing the
number of shares specified in Section 2 that may be made available for purchase under the Plan (except as provided in Section 27), or (b) changing the eligibility requirements for participating in the Plan. No amendment may be made
that impairs the vested rights of participating employees. 
  

	26.	TERM AND TERMINATION OF THE PLAN 

 The Plan shall be effective as of the Effective Date.
The Board may terminate the Plan at any time and for any reason or for no reason, provided that such termination shall not impair any rights of participating employees that have vested at the time of termination. In any event, the Plan shall,
without further action of the Board, terminate ten years after the date of adoption of the Plan by the Board or, if earlier, at such time as all shares of Common Stock that may be made available for purchase under the Plan pursuant to Section 2
have been issued. 
  

	27.	CHANGES IN CAPITALIZATION 

 (a) Changes in Common Stock. If the number of
outstanding shares of Common Stock is increased or decreased or the shares of Common Stock are changed into or exchanged for a different number or kind of shares or other securities of the Company by reason of any recapitalization, reclassification,
stock split, reverse split, combination of shares, exchange of shares, stock dividend, or other distribution payable in capital stock, or other increase or decrease in such shares effected without 

  
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receipt of consideration by the Company occurring after the Effective Date, the number and kinds of shares that may be purchased under the Plan shall be adjusted proportionately and accordingly
by the Company. In addition, the number and kind of shares for which rights are outstanding shall be similarly adjusted so that the proportionate interest of a participating employee immediately following such event shall, to the extent practicable,
be the same as immediately prior to such event. Any such adjustment in outstanding rights shall not change the aggregate Purchase Price payable by a participating employee with respect to shares subject to such rights, but shall include a
corresponding proportionate adjustment in the Purchase Price per share. Notwithstanding the foregoing, in the event of a spin-off that results in no change in the number of outstanding shares of Common Stock, the Company may, in such manner as the
Company deems appropriate, adjust (i) the number and kind of shares for which rights are outstanding under the Plan, and (ii) the Purchase Price per share. 

(b) Reorganization in Which the Company Is the Surviving Corporation. Subject to Section 27(c), if the Company shall be the
surviving corporation in any reorganization, merger or consolidation of the Company with one or more other corporations, all outstanding rights under the Plan shall pertain to and apply to the securities to which a holder of the number of shares of
Common Stock subject to such rights would have been entitled immediately following such reorganization, merger or consolidation, with a corresponding proportionate adjustment of the Purchase Price per share so that the aggregate Purchase Price
thereafter shall be the same as the aggregate Purchase Price of the shares subject to such rights immediately prior to such reorganization, merger or consolidation. 

(c) Reorganization in Which the Company Is Not the Surviving Corporation, Sale of Assets or Stock, and Other Corporate Transactions.
Upon any dissolution or liquidation of the Company, or upon a merger, consolidation or reorganization of the Company with one or more other corporations in which the Company is not the surviving corporation, or upon a sale of all or substantially
all of the assets of the Company to another corporation, or upon any transaction (including, without limitation, a merger or reorganization in which the Company is the surviving corporation) approved by the Board that results in any person or entity
owning more than 50 percent of the combined voting power of all classes of stock of the Company, the Plan and all rights outstanding hereunder shall terminate, except to the extent provision is made in writing in connection with such transaction for
the continuation of the Plan and/or the assumption of the rights theretofore granted, or for the substitution for such rights of new rights covering the stock of a successor corporation, or a parent or subsidiary thereof, with appropriate
adjustments as to the number and kinds of shares and exercise prices, in which event the Plan and rights theretofore granted shall continue in the manner and under the terms so provided. In the event of any such termination of the Plan, the Offering
Period and the Purchase Period shall be deemed to have ended on the last trading day prior to such termination, and in accordance with Section 12 the rights of each participating employee then outstanding shall be deemed to be automatically
exercised on such last trading day. The Board shall send written notice of an event that will result in such a termination to all participating employees at least ten days prior to the date upon which the Plan will be terminated. 

(d) Adjustments. Adjustments under this Section 27 related to stock or securities of the Company shall be made by the Committee,
whose determination in that respect shall be final, binding, and conclusive. 
 (e) No Limitations on Company. The grant of a right
pursuant to the Plan shall not affect or limit in any way the right or power of the Company to make adjustments, reclassifications, reorganizations or changes of its capital or business structure or to merge, consolidate, dissolve or liquidate, or
to sell or transfer all or any part of its business or assets. 

  
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	28.	GOVERNMENTAL REGULATION 

 The Company’s obligation to issue, sell and deliver shares
of Common Stock pursuant to the Plan is subject to such approval of any governmental authority and any national securities exchange or other market quotation system as may be required in connection with the authorization, issuance or sale of such
shares. 
  

	29.	STOCKHOLDER RIGHTS 

 Any dividends paid on shares held by the Company for a participating
employee’s account will be transmitted to the employee. The Company will deliver to each participating employee who purchases shares of Common Stock under the Plan, as promptly as practicable by mail or otherwise, all notices of meetings, proxy
statements, proxies and other materials distributed by the Company to its stockholders. There will be no charge to participating employees in connection with such notices, proxies and other materials. Any shares of Common Stock held by the Agent for
an employee’s account will be voted in accordance with the employee’s duly delivered and signed proxy instructions. 
  

	30.	RULE 16B-3 

 Transactions under this Plan are intended to comply with all applicable
conditions of Rule 16b-3 or any successor provision under the Securities Exchange Act of 1934, as amended. If any provision of the Plan or action by the Board fails to so comply, it shall be deemed null and void to the extent permitted by law and
deemed advisable by the Board. Moreover, in the event the Plan does not include a provision required by Rule 16b-3 to be stated in this Plan, such provision (other than one relating to eligibility requirements, or the price and amount of awards)
shall be deemed automatically to be incorporated by reference into the Plan. 
  

	31.	PAYMENT OF PLAN EXPENSES 

 The Company will bear all costs of administering and carrying
out the Plan. 

  
 9EX-10.13

 Exhibit 10.13 

EXECUTIVE EMPLOYMENT AGREEMENT 

This EXECUTIVE EMPLOYMENT AGREEMENT (this “Agreement”) is entered into as of the 5th day of December, 2013 (the “Execution Date”), between Arlene Morris (“Executive”) and SYNDAX PHARMACEUTICALS, INC. (the
“Company”). Certain capitalized terms used in this Agreement are defined in Article 7. 
 RECITALS 

A. The Company is a biopharmaceutical company. 

B. The Company desires to employ Executive, or to continue Executive’s employment, in the position set forth below, and Executive
wishes to be employed, or continue to be employed, by the Company in such position, upon the terms and conditions set forth in this Agreement. 

AGREEMENT 
 NOW,
THEREFORE, in consideration of the mutual promises contained herein, the Company and Executive agree as follows: 
 ARTICLE 1 

PRELIMINARY MATTERS 

1.1. Prior Agreement. This Agreement, on its Effective Date, amends, restates and supersedes the Prior Employment Agreement. 

1.2. Effectiveness of Agreement. This Agreement shall be effective and shall supersede the Prior Employment Agreement concurrently with
the Effective Date. Notwithstanding the foregoing, this Agreement shall not become effective, shall be deemed null and void and shall not supersede the Prior Employment Agreement if (i) the Effective Date does not occur prior to
December 31, 2014 or (ii) Executive’s employment with the Company is terminated by the Company or by Executive for any reason (including death or disability) prior to the Effective Date. If this Agreement does not become effective,
the Prior Employment Agreement shall remain in full force and effect in accordance with its terms. 
 ARTICLE 2 

TERMS OF EMPLOYMENT 

2.1. Appointment. Executive shall serve as Chief Executive Officer, reporting to the Board. As Chief Executive Officer, Executive will
be the senior most officer of the Company and have such duties and responsibilities typically associated with such senior officer. During Executive’s employment with the Company, Executive shall (i) devote substantially all of
Executive’s business efforts to the Company; provided, however, that Executive may continue to serve as a member of corporate boards of directors on which Executive serves as of the Execution Date, so long as such activities do not materially
interfere with the discharge of Executive’s duties as Chief Executive Officer and (ii) faithfully and to the best of Executive’s abilities and experience, and in accordance with the standards and ethics of the business in which the
Company is engaged, perform all duties that may be required of Executive by this Agreement, the Company’s policies and procedures, and such other duties and responsibilities as may be assigned to Executive from time to time, as well as the
directives of the Board. During Executive’s employment with the Company, Executive shall not engage in any activity that conflicts with or is detrimental to the Company’s best interests, as determined by the Board. 

 2.2. Employment Term. Executive will be employed by the Company on an “at-will”
basis. This means that either the Company or Executive may terminate Executive’s employment at any time, for any reason, with or without Cause, and with or without advance notice (provided that Resignation for Good Reason (as defined below)
requires certain advanced notice by Executive of Executive’s termination of employment). It also means that Executive’s job title, duties, responsibilities, reporting level, compensation and benefits, as well as the Company’s
personnel policies and procedures, may be changed with or without notice at any time in the Company’s sole discretion. This at-will employment relationship shall not be modified by any conflicting actions or representations of any Company
employee or other party before or during the term of Executive’s employment. 
 2.3. Compensation. 

a) Annual Base Salary. Executive’s annual base salary shall be $412,000 per year (“Annual Base Salary”),
payable in equal installments, less applicable deductions and withholdings, in accordance with the Company’s standard payroll practices. Executive’s Annual Base Salary shall be subject to review by the Company’s Compensation Committee
and may be increased or decreased, from time to time. 
 b) Benefits. Executive will be entitled to participate in all of the
employee benefits and benefit plans that the Company generally makes available to its full-time employees and executives and for which Executive is eligible in accordance with the Companies policies as in effect from time to time. These benefits are
subject to the terms, conditions, and eligibility requirements that govern or apply to them. 
 c) Bonus. In addition to Annual Base
Salary, Executive shall be eligible to earn an annual performance bonus of up to forty percent (40%) of Executive’s Annual Base Salary, which bonus shall be earned upon Executive’s attainment of objectives to be determined by the
Board (or the compensation committee thereof, as such determination may be delegated by the Board to the compensation committee) and continued employment with the Company as described below (the “Target Performance Bonus”).
The amount of and Executive’s eligibility for the Target Performance Bonus shall be determined in the sole discretion of the Board (or the compensation committee thereof, as such determination may be delegated by the Board to the compensation
committee). If earned, any Target Performance Bonus shall be paid to Executive, less authorized deductions and applicable withholdings, on or before the February 15th following the calendar
year during which such bonus was earned. Except as provided in Section 3.2, Executive shall be eligible to earn the Target Performance Bonus only if Executive is actively employed with the Company on both the determination and payment dates for
the Target Performance Bonus. 
 2.4. Reimbursement of Expenses. The Company shall reimburse Executive for Executive’s necessary
and reasonable business expenses incurred in connection with Executive’s duties in accordance with the Company’s generally applicable policies. Executive and the Company acknowledge that Executive will be required to spend a certain amount
of time each month at the Company’s Boston headquarters. Accordingly, the Company will reimburse, or pay for, all reasonable expenses incurred by Executive in connection with commuting between the Company’s Boston and South Carolina
offices, including Executive’s actual and reasonable living expenses incurred in the Boston area and Executive’s actual and reasonable commuting expenses incurred between Boston and Executive’s current principal residence in South
Carolina, including, if applicable, hotel accommodations, a corporate apartment lease, furniture rental, airfare for commercial air travel in business or a lower class cabin, and ground transportation up to a maximum of $10,000 per month. The
foregoing provisions of this Section 2.4 are subject to Section 5.10(c). 

  
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 ARTICLE 3 

CHANGE IN CONTROL SEVERANCE BENEFITS 

3.1. Severance Benefits. Upon a Change in Control Termination, and subject to the limitations and conditions set forth in this
Agreement, Executive shall be eligible to receive the benefits set forth in this Article 3. 
 3.2. Salary and Pro-Rata Bonus
Payment. In consideration of Executive’s timely execution and non-revocation of a full release of all claims, in a form provided by the Company and in accordance with Article 5, the Company shall pay Executive a severance payment equal to
(i) the sum of Executive’s Monthly Base Salary and Pro-Rata Bonus multiplied by (ii) the number of months in the Change in Control Severance Period, less applicable withholdings. The severance payment shall be payable (except as set
forth in Article 5) in a lump sum on the first regularly-scheduled payroll date occurring on or after the 60th day following the Termination Date. 

3.3. Health Continuation Coverage. 

a) Provided that Executive is eligible and has made the necessary elections for continuation coverage pursuant to COBRA under a health, dental
or vision plan sponsored by the Company, the Company shall pay the applicable premiums (inclusive of premiums for Executive’s dependents for such health, dental or vision plan coverage as in effect immediately prior to the date of the Change in
Control Termination) for such continued health, dental or vision plan coverage following the date of the Change in Control Termination for up to the number of months equal to the Change in Control Benefits Period (but in no event after such time as
Executive is eligible for coverage under a health, dental or vision insurance plan of a subsequent employer or as Executive and Executive’s dependents are no longer eligible for COBRA coverage); provided that if continued payment by the Company
of the applicable premiums would result in a violation of the nondiscrimination rules of Section 105(h)(2) of the Internal Revenue Code of 1986, as amended, or any statute or regulation of similar effect (including, without limitation, the 2010
Patient Protection and Affordable Care Act, as amended by the 2010 Health Care and Education Reconciliation Act), then in lieu of providing such continued payment, the Company will instead pay Executive on the first day of each month a fully taxable
cash payment equal to the applicable premiums for that month, subject to applicable tax withholdings, for the remainder of the Change in Control Benefits Period. Such coverage shall be counted as coverage pursuant to COBRA. The Company shall have no
obligation in respect of any premium payments (or any other payments in respect of health, dental or vision coverage from the Company) following the effective date of the Executive’s coverage by a health, dental or vision insurance plan of a
subsequent employer. Executive shall be required to notify the Company immediately if Executive becomes covered by a health, dental or vision insurance plan of a subsequent employer. If Executive and Executive’s dependents continue coverage
pursuant to COBRA following the conclusion of the Change in Control Benefits Period, Executive will be responsible for the entire payment of such premiums required under COBRA for the duration of the COBRA period. 

b) For purposes of this Section 3.3, (i) references to COBRA shall be deemed to refer also to analogous provisions of state law, and
(ii) any applicable insurance premiums that are paid by the Company shall not include any amounts payable by Executive under a Code Section 125 health care reimbursement plan, which amounts, if any, are the sole responsibility of
Executive. 
 3.4. Stock Awards. Upon a Change in Control Termination, (i) the vesting and exercisability of all outstanding
options to purchase the Company’s common stock (or stock appreciation rights or other rights with respect to the stock of the Company issued pursuant to any equity incentive plan of the Company) that are held by Executive on the Termination
Date shall be accelerated in full, and (ii) any reacquisition or repurchase rights held by the Company with respect to common stock issued or issuable 

  
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(or with respect to other rights with respect to the stock of the Company issued or issuable) pursuant to any option award or other stock award granted to Executive pursuant to any equity
incentive plan of the Company shall lapse. 
 ARTICLE 4 

COVERED TERMINATION SEVERANCE BENEFITS 

4.1. Severance Benefits. Upon a Covered Termination, and subject to the limitations and conditions set forth in this Agreement,
Executive shall be eligible to receive the benefits set forth in this Article 4. 
 4.2. Salary Payment. In consideration of
Executive’s timely execution and non-revocation of a full release of all claims, in a form provided by the Company and in accordance with Article 5, the Company shall pay Executive a severance payment equal to Executive’s Monthly Base
Salary multiplied by the number of months in the Covered Termination Severance Period, less applicable withholdings. The severance payment shall be payable (except as set forth in Article 5) in a lump sum on the first regularly-scheduled payroll
date occurring on or after the 60th day following the Termination Date. 
 4.3.
Health Continuation Coverage. 
 a) Provided that Executive is eligible and has made the necessary elections for continuation
coverage pursuant to COBRA under a health, dental or vision plan sponsored by the Company, the Company shall pay for the applicable premiums (inclusive of premiums for Executive’s dependents for such health, dental or vision plan coverage as in
effect immediately prior to the date of the Covered Termination) for such continued health, dental or vision plan coverage following the date of the Covered Termination for up to the number of months equal to the Covered Termination Benefits Period
(but in no event after such time as Executive is eligible for coverage under a health, dental or vision insurance plan of a subsequent employer or as Executive and Executive’s dependents are no longer eligible for COBRA coverage); provided that
if continued payment by the Company of the applicable premiums would result in a violation of the nondiscrimination rules of Section 105(h)(2) of the Internal Revenue Code of 1986, as amended, or any statute or regulation of similar effect
(including, without limitation, the 2010 Patient Protection and Affordable Care Act, as amended by the 2010 Health Care and Education Reconciliation Act), then in lieu of providing such continued payment, the Company will instead pay Executive on
the first day of each month a fully taxable cash payment equal to the applicable premiums for that month, subject to applicable tax withholdings, for the remainder of the Covered Termination Benefits Period. Such coverage shall be counted as
coverage pursuant to COBRA. The Company shall have no obligation in respect of any premium payments (or any other payments in respect of health, dental or vision coverage from the Company) following the effective date of the Executive’s
coverage by a health, dental or vision insurance plan of a subsequent employer. Executive shall be required to notify the Company immediately if Executive becomes covered by a health, dental or vision insurance plan of a subsequent employer. If
Executive and Executive’s dependents continue coverage pursuant to COBRA following the conclusion of the Covered Termination Benefits Period, Executive will be responsible for the entire payment of such premiums required under COBRA for the
duration of the COBRA period. 
 b) For purposes of this Section 4.3, (i) references to COBRA shall be deemed to refer also to
analogous provisions of state law, and (ii) any applicable insurance premiums that are paid by the Company shall not include any amounts payable by Executive under a Code Section 125 health care reimbursement plan, which amounts, if any,
are the sole responsibility of Executive. 
 4.4. Preexisting Equity Awards. Upon a Covered Termination, with respect to Preexisting
Equity Awards held by Executive as of the Termination Date: 

  
 4 

 a) The vesting and exercisability of any Preexisting Option held by Executive as of the
Termination Date shall be accelerated as to the number of shares of common stock issuable upon exercise of such Preexisting Option (“Option Shares”) as equals the number of Option Shares as would otherwise vest during the
twelve (12) month period following the Termination Date in accordance with the Preexisting Option’s vesting schedule were the Executive to remain an employee of the Company during such twelve (12) month period (disregarding any other
basis for acceleration of vesting of Option Shares during such twelve (12) month period), and 
 b) Any reacquisition or repurchase
rights held by the Company with respect to common stock issued or issuable (or with respect to other rights with respect to the stock of the Company issued or issuable) pursuant to any Preexisting Equity Award (“Restricted
Shares”) held by the Executive as of the Termination Date shall lapse as to the number of Restricted Shares as equals the number of Restricted Shares as to which such reacquisition or repurchase rights would otherwise lapse during the
twelve (12) month period following the Termination Date in accordance with the Preexisting Equity Award’s vesting schedule were the Executive to remain an employee of the Company during such twelve (12) month period (disregarding any
other basis for acceleration of the lapsing of such reacquisition or repurchase rights on Restricted Shares during such twelve (12) month period). 

ARTICLE 5 
 LIMITATIONS
AND CONDITIONS ON BENEFITS 
 5.1. Rights Conditioned on Compliance. Executive’s rights to receive all severance benefits
described in Article 3 and Article 4 shall be conditioned upon and subject to Executive’s compliance with the limitations and conditions on benefits as described in this Article 5. 

5.2. Continuation of Service Until Date of Termination. Executive shall continue to provide service to the Company in good faith until
the Termination Date, unless such performance is otherwise excused in writing by the Company. 
 5.3. Release Prior to Payment of
Benefits. Upon the occurrence of a Change in Control Termination or a Covered Termination, as applicable, and prior to the provision or payment of any benefits under this Agreement on account of such Change in Control Termination or Covered
Termination, as applicable, Executive must execute a general waiver and release in substantially the form attached hereto and incorporated herein as Exhibit A, Exhibit B, or Exhibit C, as appropriate (each a
“Release”), and such Release must become effective in accordance with its terms, but in no event later than sixty (60) days following the Termination Date. No amount shall be paid prior to such date. Instead, on the
first regularly-scheduled payroll date occurring on or after the 60th day following the Termination Date, the Company will pay Executive the severance amount that Executive would otherwise have
received on or prior to such date but for the delay in payment related to the effectiveness of the Release, with the balance of the severance amount being paid as originally scheduled. The Company may modify the Release in its discretion to comply
with changes in applicable law at any time prior to Executive’s execution of such Release. Such Release shall specifically relate to all of Executive’s rights and claims in existence at the time of such execution and shall confirm
Executive’s obligations under the Confidentiality Agreement and any similar obligations under applicable law. It is understood that, as specified in the applicable Release, Executive has a certain number of calendar days to consider whether to
execute such Release. If Executive does not execute and deliver such Release within the applicable period, no benefits shall be provided or payable under, and Executive shall have no further rights, title or interests in or to any severance benefits
or payments pursuant to this Agreement. It is further understood that if Executive is age 40 or older at the time of a Change in Control Termination or a Covered Termination, as applicable, Executive may revoke the applicable Release within seven
(7) calendar days after its execution by Executive. If Executive revokes such Release within such subsequent seven (7) day 

  
 5 

 
period, no benefits shall be provided or payable under this Agreement pursuant to such Change in Control Termination or Covered Termination, as applicable. 

5.4. Return of Company Property. Not later than the Termination Date, Executive shall return to the Company all documents (and all
copies thereof) and other property belonging to the Company that Executive has in his or her possession or control. The documents and property to be returned include, but are not limited to, all files, correspondence, email, memoranda, notes,
notebooks, records, plans, forecasts, reports, studies, analyses, compilations of data, proposals, agreements, financial information, research and development information, marketing information, operational and personnel information, databases,
computer-recorded information, tangible property and equipment (including, but not limited to, computers, facsimile machines, mobile telephones and servers), credit cards, entry cards, identification badges and keys, and any materials of any kind
which contain or embody any proprietary or confidential information of the Company (and all reproductions thereof in whole or in part). Executive agrees to make a diligent search to locate any such documents, property and information. If Executive
has used any personally owned computer, server or e-mail system to receive, store, review, prepare or transmit any Company confidential or proprietary data, materials or information, then within ten (10) business days after the Termination
Date, Executive shall provide the Company with a computer-useable copy of all such information and then permanently delete and expunge such confidential or proprietary information from those systems. Executive agrees to provide the Company access to
Executive’s system as requested to verify that the necessary copying and/or deletion is done. 
 5.5. Cooperation and Continued
Compliance with Restrictive Covenants. 
 a) From and after the Termination Date, Executive shall cooperate fully with the
Company in connection with its actual or contemplated defense, prosecution or investigation of any existing or future litigation, arbitrations, mediations, claims, demands, audits, government or regulatory inquiries, or other matters arising from
events, acts or failures to act that occurred during the time period in which Executive was employed by the Company (including any period of employment with an entity acquired by the Company). Such cooperation includes, without limitation, being
available upon reasonable notice, without subpoena, to provide accurate and complete advice, assistance and information to the Company, including offering and explaining evidence, providing truthful and accurate sworn statements, and participating
in discovery and trial preparation and testimony. Executive also agrees to promptly send the Company copies of all correspondence (for example, but not limited to, subpoenas) received by Executive in connection with any such legal proceedings,
unless Executive is expressly prohibited by law from so doing. The Company will reimburse Executive for reasonable out-of-pocket expenses incurred in connection with any such cooperation (excluding foregone wages, salary or other compensation)
within thirty (30) days of Executive’s timely presentation of appropriate documentation thereof, in accordance with the Company’s standard reimbursement policies and procedures, and will make reasonable efforts to accommodate
Executive’s scheduling needs. 
 b) From and after the Termination Date, Executive shall continue to abide by all of the terms and
provisions of the Confidentiality Agreement (and any other comparable agreement signed by Executive), in accordance with its terms. 
 c)
Executive agrees that the choice of law and choice of forum provisions in Section 10.10 of the Confidentiality Agreement shall be amended to conform to the choice of law and choice of forum provisions in Section 8.11 of this Agreement. No
other terms of the Confidentiality Agreement are amended by this Agreement, and the Confidentiality Agreement remains in full force and effect. 

d) Executive acknowledges and agrees that Executive’s obligations under this Section 5.5 are an essential part of the consideration
Executive is providing hereunder in exchange for which and in reliance upon which the Company has agreed to provide the payments and benefits under 

  
 6 

 
this Agreement. Executive further acknowledges and agrees that Executive’s violation of this Section 5.5 inevitably would involve use or disclosure of the Company’s proprietary and
confidential information. Accordingly, Executive agrees that Executive will forfeit, effective as of the date of any breach, any right, entitlement, claim or interest in or to any unpaid portion of the severance payments or benefits provided in
Article 3 or Article 4. If it is determined by a court of competent jurisdiction in any state that any restriction in this Section 5.5 is excessive in duration or scope or is unreasonable or unenforceable under the laws of that state, it is the
intention of the parties that such restriction may be modified or amended by the court to render it enforceable to the maximum extent permitted by the law of that state. 

5.6. Parachute Payments. 

a) Parachute Payment Limitation. If any payment or benefit (including payments and benefits pursuant to this Agreement) Executive
would receive in connection with a Change in Control from the Company or otherwise (“Payment”) would (i) constitute a “parachute payment” within the meaning of Section 280G of the Code, and (ii) but
for this paragraph, be subject to the excise tax imposed by Section 4999 of the Code (the “Excise Tax”), then the Company shall cause to be determined, before any amounts of the Payment are paid to Executive, which of
the following two alternative forms of payment shall be paid to Executive: (A) payment in full of the entire amount of the Payment (a “Full Payment”), or (B) payment of only a part of the Payment so that Executive
receives the largest payment possible without the imposition of the Excise Tax (a “Reduced Payment”). A Full Payment shall be made in the event that the amount received by the Executive on a net after-tax basis is greater
than what would be received by the Executive on a net after-tax basis if the Reduced Payment were made, otherwise a Reduced Payment shall be made. If a Reduced Payment is made, (i) the Payment shall be paid only to the extent permitted under
the Reduced Payment alternative, and Executive shall have no rights to any additional payments and/or benefits constituting the Payment, and (ii) reduction in payments and/or benefits shall occur in the following order: (A) reduction of
cash payments; (B) cancellation of accelerated vesting of equity awards other than stock options; (C) cancellation of accelerated vesting of stock options; and (D) reduction of other benefits paid to Executive. In the event that
acceleration of compensation from Executive’s equity awards is to be reduced, such acceleration of vesting shall be canceled in the reverse order of the date of grant. 

b) The independent registered public accounting firm engaged by the Company for general audit purposes as of the day prior to the effective
date of the Change in Control shall make all determinations required to be made under this Section 5.6. If the independent registered public accounting firm so engaged by the Company is serving as accountant or auditor for the individual,
entity or group effecting the Change in Control, the Company shall appoint a nationally recognized independent registered public accounting firm to make the determinations required hereunder. The Company shall bear all expenses with respect to the
determinations by such independent registered public accounting firm required to be made hereunder. 
 c) The independent registered public
accounting firm engaged to make the determinations hereunder shall provide its calculations, together with detailed supporting documentation, to the Company and Executive within fifteen (15) calendar days after the date on which
Executive’s right to a Payment is triggered (if requested at that time by the Company or Executive) or such other time as requested by the Company or Executive. If the independent registered public accounting firm determines that no Excise Tax
is payable with respect to a Payment, either before or after the application of the Reduced Amount, it shall furnish the Company and Executive with an opinion reasonably acceptable to Executive that no Excise Tax will be imposed with respect to such
Payment. Any good faith determinations of the accounting firm made hereunder shall be final, binding and conclusive upon the Company and Executive. 

  
 7 

 5.7. Certain Reductions and Offsets. To the extent that any federal, state or local laws,
including, without limitation, the Worker Adjustment and Retraining Notification Act or any other so-called “plant closing” laws, require the Company to give advance notice or make a payment of any kind to Executive because of
Executive’s involuntary termination due to a layoff, reduction in force, plant or facility closing, sale of business, change in control or any other similar event or reason, the benefits payable under this Agreement shall be correspondingly
reduced. The benefits provided under this Agreement are intended to satisfy any and all statutory obligations that may arise out of Executive’s involuntary termination of employment for the foregoing reasons, and the parties shall construe and
enforce the terms of this Agreement accordingly. 
 5.8. Mitigation. Except as otherwise specifically provided herein, Executive
shall not be required to mitigate damages or the amount of any payment provided under this Agreement by seeking other employment or otherwise, nor shall the amount of any payment provided for under this Agreement be reduced by any compensation
earned by Executive as a result of employment by another employer or by any retirement benefits received by Executive after the date of a Change in Control Termination or Covered Termination (except as expressly provided in Sections 3.3 and 4.3
above). 
 5.9. Indebtedness of Executive. If Executive is indebted to the Company on the effective date of a Change in Control
Termination or Covered Termination, the Company reserves the right to offset any severance payments and benefits under this Agreement by the amount of such indebtedness. 

5.10. Application of Section 409A. 

a) Separation from Service. Notwithstanding any provision to the contrary in this Agreement, no amount deemed deferred compensation
subject to Section 409A of the Code shall be payable pursuant to Article 3 or Article 4 unless Executive’s termination of employment constitutes a “separation from service” with the Company within the meaning of Section 409A
of the Code and the Department of Treasury Regulations and other guidance promulgated thereunder and, except as provided under Section 5.10(b) hereof, any such amount shall not be paid, or in the case of installments, commence payment, until
the first regularly-scheduled payroll date occurring on or after the 60th day following Executive’s separation from service. Any installment payments that would have been made to Executive
during the sixty (60) day period immediately following Executive’s separation from service but for the preceding sentence shall be paid to Executive on the first regularly-scheduled payroll date occurring on or after the 60th day after Executive’s separation from service and the remaining payments shall be made as provided in this Agreement. 

b) Specified Executive. Notwithstanding any provision to the contrary in this Agreement, if Executive is deemed at the time of his or
her separation from service to be a “specified employee” for purposes of Section 409A(a)(2)(B)(i) of the Code, to the extent delayed commencement of any portion of the benefits to which Executive is entitled under this Agreement is
required in order to avoid a prohibited distribution under Section 409A(a)(2)(B)(i) of the Code, such portion of Executive’s benefits shall not be provided to Executive prior to the earlier of (i) the expiration of the six (6)-month
period measured from the date of Executive’s “separation from service” with the Company (as such term is defined in the Treasury Regulations issued under Section 409A of the Code) or (ii) the date of Executive’s death.
Upon the first business day following the expiration of the applicable Code Section 409A(a)(2)(B)(i) period, all payments deferred pursuant to this Section 5.10(b) shall be paid in a lump sum to Executive, and any remaining payments due
under this Agreement shall be paid as otherwise provided herein. 
 c) Expense Reimbursements. To the extent that any reimbursement
payable pursuant to this Agreement is subject to the provisions of Section 409A of the Code, any such reimbursement payable to Executive pursuant to this Agreement shall be paid to Executive no later than December 31 of

  
 8 

 
the year following the year in which the expense was incurred; the amount of expenses reimbursed in one year shall not affect the amount eligible for reimbursement in any subsequent year; and
Executive’s right to reimbursement under this Agreement will not be subject to liquidation or exchange for another benefit. 
 d)
Installments. For purposes of Section 409A of the Code (including, without limitation, for purposes of Treasury Regulation Section 1.409A-2(b)(2)(iii)), Executive’s right to receive any installment payments under this Agreement
shall be treated as a right to receive a series of separate payments and, accordingly, each such installment payment shall at all times be considered a separate and distinct payment. 

5.11. Tax Withholding. All payments under this Agreement shall be subject to applicable withholding for federal, state and local income
and employment taxes. 
 5.12. No Duplication of Severance Benefits. The severance and other benefits provided in Article 3 and
Article 4 are mutually exclusive of each other, and in no event shall Executive receive any severance or other benefits pursuant to both Article 3 and Article 4. 

ARTICLE 6 
 TERMINATION
WITH CAUSE OR BY VOLUNTARY RESIGNATION; 
 OTHER RIGHTS AND BENEFITS 

6.1. Termination for Cause by the Company. If the Company shall terminate the Executive’s employment with the Company for Cause,
then upon such termination, the Company shall have no further obligation to Executive hereunder except for the payment or provision, as applicable, of (i) the portion of the Annual Base Salary for the period prior to the effective date of
termination earned but unpaid (if any), (ii) all unreimbursed expenses (if any), subject to Sections 2.4 and 5.10(c), and (iii) other payments, entitlements or benefits, if any, in accordance with terms of the applicable plans, programs,
arrangements or other agreements of the Company (other than any severance plan or policy) as to which the Executive held rights to such payments, entitlements or benefits, whether as a participant, beneficiary or otherwise on the date of termination
(“Other Benefits”). For the avoidance of doubt, Executive shall have no right to receive (and Other Benefits shall not include) any amounts under any Company severance plan or policy or pursuant to Article 3 or Article 4 upon
Executive’s termination for Cause. 
 6.2. Termination by Voluntary Resignation by the Executive (other than Resignation for Good
Reason). Upon any voluntary resignation by Executive that is not a Resignation for Good Reason, the Company shall have no further obligation to the Executive hereunder except for the payment of (i) the portion of the Annual Base Salary for
the period prior to the effective date of termination earned but unpaid (if any), (ii) all unreimbursed expenses (if any), subject to Section 2.4 and Section 5.10(c), and (iii) the payment or provision of any Other Benefits. For
the avoidance of doubt, Executive shall have no right to receive (and Other Benefits shall not include) any amounts under any Company severance plan or policy or pursuant to Article 3 or Article 4 upon any voluntary resignation by Executive that is
not a Resignation for Good Reason. 
 6.3. Other Rights and Benefits. Nothing in this Agreement shall prevent or limit
Executive’s continuing or future participation in any benefit, bonus, incentive or other plans, programs, policies or practices provided by the Company and for which Executive may otherwise qualify, nor shall anything herein limit or otherwise
affect such rights as Executive may have under other agreements with the Company except as provided in Article 1, Article 5, Section 6.1 and Section 6.2 above. Except as otherwise expressly provided herein, amounts that are vested benefits
or that Executive is otherwise entitled to receive under any plan, policy, practice or program of the Company at or subsequent to the date of a Change in Control shall be payable in accordance with such plan, policy, practice or program. 

  
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 6.4. Additional Acceleration Rights with Respect to Preexisting Equity Awards upon a Change in
Control. In addition to any other rights set forth in this Agreement, in connection with a Change in Control, with respect to Preexisting Equity Awards held by the Executive as of the Change in Control: 

a) The vesting and exercisability of any Preexisting Option held by Executive as of the Change in Control shall be accelerated as to all of the
Option Shares issuable upon exercise of such Preexisting Option, and 
 b) Any reacquisition or repurchase rights held by the Company with
respect to Restricted Shares held by the Executive as of the Change in Control pursuant to any Preexisting Equity Award shall lapse. 

ARTICLE 7 
 DEFINITIONS

 Unless otherwise provided, for purposes of this Agreement, the following definitions shall apply: 

7.1. “Board” means the Board of Directors of the Company. 

7.2. “Cause” means Executive’s: (i) dishonest statements or acts with respect to the Company, any
subsidiary or any affiliate of the Company or any subsidiary; (ii) commission by or indictment for (A) a felony or (B) any misdemeanor (excluding minor traffic violations) involving moral turpitude, deceit, dishonesty or fraud
(“indictment,” for these purposes, meaning an indictment, probable cause hearing or any other procedure pursuant to which an initial determination of probable or reasonable cause with respect to such offense is made); (iii) gross
negligence, willful misconduct or insubordination with respect to the Company, any subsidiary or any affiliate of the Company or any subsidiary; (iv) material breach of any of Executive’s obligations under any agreement to which Executive
and the Company or any subsidiary are a party; or (v) death or disability. With respect to clause (iv), Executive will be given notice and a 30-day period in which to cure such breach, only to the extent such breach can be reasonably expected
to be able to be cured within such period. Executive agrees that the breach of any confidentiality obligation to the Company or any subsidiary shall not be curable to any extent. 

7.3. “Change in Control” means the occurrence, in a single transaction or in a series of related transactions,
of any one or more of the following events: 
 a) Any natural person, entity or group within the meaning of Section 13(d) or 14(d) of
the Securities Exchange Act of 1934, as amended (“Exchange Act Person”), becomes the owner, directly or indirectly, of securities of the Company representing more than fifty percent (50%) of the combined voting power of
the Company’s then outstanding securities other than by virtue of a merger, consolidation or similar transaction. Notwithstanding the foregoing, a Change in Control shall not be deemed to occur (i) on account of the acquisition of
securities of the Company by any institutional investor, any affiliate thereof or any other Exchange Act Person that acquires the Company’s securities in a transaction or series of related transactions that are primarily a private financing
transaction for the Company or (ii) solely because the level of ownership held by any Exchange Act Person (the “Subject Person”) exceeds the designated percentage threshold of the outstanding voting securities as a
result of a repurchase or other acquisition of voting securities by the Company reducing the number of shares outstanding, provided that if a Change in Control would occur (but for the operation of this sentence) as a result of the acquisition of
voting securities by the Company, and after such share acquisition, the Subject Person becomes the owner of any additional voting securities that, assuming the repurchase or other acquisition had not occurred, increases the percentage of the then
outstanding voting securities owned by the Subject Person over the designated percentage threshold, then a Change in Control shall be deemed to occur; 

  
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 b) There is consummated a merger, consolidation or similar transaction involving, directly or
indirectly, the Company if, immediately after the consummation of such merger, consolidation or similar transaction, the stockholders of the Company immediately prior thereto do not own, directly or indirectly, either (i) outstanding voting
securities representing more than fifty percent (50%) of the combined outstanding voting power of the surviving entity in such merger, consolidation or similar transaction or (ii) more than fifty percent (50%) of the combined
outstanding voting power of the parent of the surviving entity in such merger, consolidation or similar transaction; 
 c) The stockholders
of the Company approve or the Board approves a plan of complete dissolution or liquidation of the Company, or a complete dissolution or liquidation of the Company shall otherwise occur; or 

d) There is consummated a sale, lease, license or other disposition of all or substantially all of the consolidated assets of the Company and
its subsidiaries, other than a sale, lease, license or other disposition of all or substantially all of the consolidated assets of the Company and its subsidiaries to an entity, more than fifty percent (50%) of the combined voting power of the
voting securities of which are owned by stockholders of the Company in substantially the same proportion as their ownership of the Company immediately prior to such sale, lease, license or other disposition. 

The term Change in Control shall not include a sale of assets, merger or other transaction effected exclusively for the purpose of changing
the domicile of the Company. Notwithstanding the foregoing or any other provision of this Agreement, the definition of Change in Control (or any analogous term) in an individual written agreement between the Company or any affiliate and the
participant shall supersede the foregoing definition with respect to stock awards subject to such agreement (it being understood, however, that if no definition of Change in Control or any analogous term is set forth in such an individual written
agreement, the foregoing definition shall apply). 
 7.4. “Change in Control Benefits Period” means the
period of twelve (12) months commencing on the Termination Date. 
 7.5. “Change in Control Severance
Period” means the period of eighteen (18) months commencing on the Termination Date. 
 7.6. “Change in
Control Termination” means an “Involuntary Termination Without Cause” or “Resignation for Good Reason,” either of which occurs on, or within three (3) months prior to, or
within twelve (12) months following, the effective date of a Change in Control, provided that any such termination is a “separation from service” within the meaning of Treasury Regulation Section 1.409A-1(h). Death and disability
shall not be deemed Change in Control Terminations. 
 7.7. “COBRA” means the Consolidated Omnibus Budget
Reconciliation Act of 1985, as amended. 
 7.8. “Code” means the Internal Revenue Code of 1986, as amended.

 7.9. “Company” means Syndax Pharmaceuticals, Inc. or, following a Change in Control, the surviving entity
resulting from such transaction, or any subsequent surviving entity resulting from any subsequent Change in Control. 
 7.10.
“Confidentiality Agreement” means Executive’s Assignment of Developments, Non-Disclosure, Non-Competition, and Non-Solicitation Agreement with the Company, dated June 28, 2013 (or any successor agreement
thereto). 
 7.11. “Covered Termination” means an “Involuntary Termination Without
Cause” or “Resignation for Good Reason”, provided that any such termination is a “separation from service” within 

  
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the meaning of Treasury Regulation Section 1.409A-1(h). Death and disability shall not be deemed Covered Terminations. If an Involuntary Termination Without Cause or Resignation for Good
Reason qualifies as a Change in Control Termination, it shall not constitute a Covered Termination. 
 7.12. “Covered
Termination Benefits Period” means the period of twelve (12) months commencing on the Termination Date. 
 7.13.
“Covered Termination Severance Period” means the period of twelve (12) months commencing on the Termination Date. 

7.14. “Effective Date” means the effective date of the first registration statement filed by the Company to
register shares of its common stock for sale to the public through one or more underwriters. 
 7.15. “Involuntary
Termination Without Cause” means Executive’s dismissal or discharge by the Company for reasons other than Cause and other than as a result of death or disability. 

7.16. “Monthly Base Salary” means 1/12th of the greater of
(i) Executive’s annual base salary (excluding incentive pay, premium pay, commissions, overtime, bonuses and other forms of variable compensation) as in effect on the date of a Change in Control Termination or a Covered Termination, as
applicable, or (ii) in the case of a Change in Control Termination, Executive’s annual base salary (excluding incentive pay, premium pay, commissions, overtime, bonuses and other forms of variable compensation) as in effect on the date of
a Change in Control. 
 7.17. “Preexisting Equity Award” means (i) any option to purchase the
Company’s common stock (or stock appreciation rights or other rights with respect to the stock of the Company) granted to Executive prior to the Effective Date pursuant to any equity incentive plan of the Company (“Preexisting
Option”), or (ii) any other stock award granted to Executive prior to the Effective Date pursuant to any equity incentive plan of the Company. 

7.18. “Prior Employment Agreement” means that certain offer letter agreement, between the Company and
Executive, dated March 18, 2012. 
 7.19. “Pro-Rata Bonus” means 1/12th of the greater of (i) the average Target Performance Bonus paid to Executive for the three years preceding the date of a Change in Control Termination (or such lesser number of years during
which Executive has been employed by the Company), or (ii) the Target Performance Bonus, as in effect on the date of a Change in Control Termination. 

7.20. “Resignation for Good Reason” means Executive’s resignation from all employee positions Executive
then holds with the Company within sixty (60) days following any of the following events taken without Executive’s consent, provided Executive has given the Company written notice of such event within thirty (30) days after the first
occurrence of such event and the Company has not cured such event within thirty (30) days thereafter: 
 a) A decrease in
Executive’s total target cash compensation (base and bonus) of more than 10%, other than in connection with a comparable decrease in compensation for all comparable executives of the Company; 

b) Executive’s duties or responsibilities are materially diminished (not simply a change in title or reporting relationships); provided,
that Executive shall not be deemed to have a “Resignation for Good Reason” if the Company survives as a separate legal entity or business unit following the Change in Control and Executive holds materially the same position
in such legal entity or business unit as Executive held before the Change in Control; 

  
 12 

 c) Either (i) Executive is required to establish residence in a location more than 50 miles
from Executive’s current principal personal residence or (ii) there is an increase in Executive’s round-trip driving distance of more than fifty (50) miles from Executive’s current principal personal residence to the
principal office or business location at which Executive is required to perform services (except for required business travel to the extent consistent with Executive’s prior business travel obligations) (“Executive’s Principal
Place of Business”) as a result of a change in location by the Company of Executive’s Principal Place of Business; or 

d) The failure of the Company to obtain a satisfactory agreement from any successor to materially assume and materially agree to perform under
the terms of this Agreement. 
 7.21. “Termination Date” means the effective date of the Change in Control
Termination or Covered Termination, as applicable. 
 ARTICLE 8 

GENERAL PROVISIONS 

8.1. Employment Status. This Agreement does not constitute a contract of employment or impose upon Executive any obligation to remain
as an employee, or impose on the Company any obligation (i) to retain Executive as an employee, (ii) to change the status of Executive as an at-will employee or (iii) to change the Company’s policies regarding termination of
employment. 
 8.2. Notices. Any notices provided hereunder must be in writing, and such notices or any other written communication
shall be deemed effective upon the earlier of personal delivery (including personal delivery by facsimile) or the third day after mailing by first class mail, to the Company at its primary office location and to Executive at Executive’s address
as listed in the Company’s payroll records. Any payments made by the Company to Executive under the terms of this Agreement shall be delivered to Executive either in person or at the address as listed in the Company’s payroll records. 

8.3. Severability. Whenever possible, each provision of this Agreement will be interpreted in such manner as to be effective and valid
under applicable law, but if any provision of this Agreement is held to be invalid, illegal or unenforceable in any respect under any applicable law or rule in any jurisdiction, such invalidity, illegality or unenforceability will not affect any
other provision or any other jurisdiction, but this Agreement will be reformed, construed and enforced in such jurisdiction as if such invalid, illegal or unenforceable provisions had never been contained herein. 

8.4. Waiver. If either party should waive any breach of any provisions of this Agreement, he, she or it shall not thereby be deemed to
have waived any preceding or succeeding breach of the same or any other provision of this Agreement. 
 8.5. Complete Agreement. This
Agreement, including Exhibit A, Exhibit B and Exhibit C, constitutes the entire agreement between Executive and the Company and is the complete, final and exclusive embodiment of their agreement with regard to this subject
matter, wholly superseding all written and oral agreements with respect to payments and benefits to Executive in the event of employment termination. It is entered into without reliance on any promise or representation other than those expressly
contained herein. 
 8.6. Amendment or Termination of Agreement; Continuation of Agreement. This Agreement may be changed or
terminated only upon the mutual written consent of the Company and Executive. The written consent of the Company to a change or termination of this Agreement must be signed by an executive officer of the Company (other than Executive) after such
change or termination has been approved by the Board. Unless so terminated, this Agreement shall continue in effect for as long as Executive continues to be employed by the Company or by any surviving entity following any Change

  
 13 

 
in Control. In other words, if, following a Change in Control, Executive continues to be employed by the surviving entity without a Change in Control Termination and the surviving entity then
undergoes a Change in Control, following which Executive is terminated by the subsequent surviving entity in a Change in Control Termination, then Executive shall receive the benefits described in Article 3 hereof. 

8.7. Counterparts. This Agreement may be executed in separate counterparts, any one of which need not contain signatures of more than
one party, but all of which taken together will constitute one and the same Agreement. 
 8.8. Headings. The headings of the Articles
and Sections hereof are inserted for convenience only and shall not be deemed to constitute a part hereof nor to affect the meaning thereof. 

8.9. Successors and Assigns. This Agreement is intended to bind and inure to the benefit of and be enforceable by Executive, and the
Company, and any surviving entity resulting from a Change in Control and upon any other person who is a successor by merger, acquisition, consolidation or otherwise to the business formerly carried on by the Company, and their respective successors,
assigns, heirs, executors and administrators, without regard to whether or not such person actively assumes any rights or duties hereunder; provided, however, that Executive may not assign any duties hereunder and may not assign any rights hereunder
without the written consent of the Company, which consent shall not be withheld unreasonably. 
 8.10. Choice of Law. Because of the
Company’s and Executive’s interests in ensuring that disputes regarding this Agreement are resolved on a uniform basis, the parties agree that all questions concerning the construction, validity and interpretation of this Agreement will be
governed by the law of the State of Delaware, without regard for any conflict of law principles. Further, the parties consent to the jurisdiction of the state and federal courts of the State of Delaware for all purposes in connection with this
Agreement. The parties hereby irrevocably waive, to the fullest extent permitted by applicable law, any objection which Executive or the Company may now or hereafter have to the laying of venue of any such dispute brought in such court or any
defense of inconvenient forum for the maintenance of such dispute.
 8.11. Arbitration. To ensure the rapid and economical resolution
of any disputes that may arise under or relate to this Agreement or Executive’s employment relationship, Executive and the Company agree that any and all disputes, claims, or causes of action, in law or equity, arising from or relating to the
performance, enforcement, execution, or interpretation of this Agreement, Executive’s employment with the Company, or the termination of Executive’s employment (collectively, “Claims”), shall be resolved to the
fullest extent permitted by law, by final, binding, and (to the extent permitted by law) confidential arbitration before a single arbitrator in the state where Executive is employed. The arbitration shall be governed by the Federal Arbitration
Act, 9 U.S.C. Section 1 et seq., as amended, and shall be administered by the Judicial Arbitration & Mediation Services, Inc. (“JAMS”), in accordance with its then-current Employment Arbitration
Rules & Procedures (the “JAMS Rules”). The JAMS Rules are also available online at http://www.jamsadr.com/rules-employment-arbitration/. The parties or their representatives may also call JAMS at 800.352.5267 if
they have questions about the arbitration process. If the JAMS Rules are inconsistent with the terms of this Agreement, the terms of this Agreement shall govern. Notwithstanding the foregoing, this provision shall exclude Claims that by
law are not subject to arbitration. The arbitrator shall: (a) have the authority to compel adequate discovery for the resolution of all Claims and to award such relief as would otherwise be permitted by law; and (b) issue a
written arbitration decision including the arbitrator’s essential findings and conclusions and a statement of the award. The Company shall pay all JAMS fees in excess of the amount of filing and other court-related fees Executive would
have been required to pay if the Claims were asserted in a court of law. EXECUTIVE AND THE COMPANY UNDERSTAND AND FULLY AGREE THAT BY ENTERING INTO THIS AGREEMENT, BOTH EXECUTIVE AND THE COMPANY ARE GIVING UP THE CONSTITUTIONAL RIGHT TO HAVE A
TRIAL BY JURY, AND ARE GIVING UP THE NORMAL 

  
 14 

 
RIGHTS OF APPEAL FOLLOWING THE RENDERING OF A DECISION, EXCEPT AS THE FEDERAL ARBITRATION ACT AND APPLICABLE FEDERAL LAW ALLOW FOR JUDICIAL REVIEW OF ARBITRATION PROCEEDINGS. Nothing in this
Agreement shall prevent either Executive or the Company from obtaining injunctive relief in court to prevent irreparable harm pending the conclusion of any such arbitration. Any awards or final orders in such arbitrations may be entered and
enforced as judgments or orders in the federal and state courts of any competent jurisdiction in compliance with Section 7.11 of this Agreement. 

8.12. Construction of Agreement. In the event of a conflict between the text of this Agreement and any summary, description or other
information regarding this Agreement, the text of this Agreement shall control. 
 8.13. Circular 230 Disclaimer. THE FOLLOWING
DISCLAIMER IS PROVIDED IN ACCORDANCE WITH THE INTERNAL REVENUE SERVICE’S CIRCULAR 230 (21 C.F.R. PART 10). ANY TAX ADVICE CONTAINED IN THIS AGREEMENT IS INTENDED TO BE PRELIMINARY, FOR DISCUSSION PURPOSES ONLY AND NOT FINAL. ANY SUCH ADVICE IS
NOT INTENDED TO BE USED FOR MARKETING, PROMOTING OR RECOMMENDING ANY TRANSACTION OR FOR THE USE OF ANY PERSON IN CONNECTION WITH THE PREPARATION OF ANY TAX RETURN. ACCORDINGLY, THIS ADVICE IS NOT INTENDED OR WRITTEN TO BE USED, AND IT CANNOT BE
USED, BY ANY PERSON FOR THE PURPOSE OF AVOIDING TAX PENALTIES THAT MAY BE IMPOSED ON SUCH PERSON. 

  
 15 

 IN WITNESS WHEREOF, the parties have executed this Agreement on the Execution Date written
above. 
  

									
	SYNDAX PHARMACEUTICALS, INC.	 		 	EXECUTIVE
					
	By:	 	 /s/ Dennis G. Podlesak
	 		 	By:	 	 /s/ Arlene Morris

	Name: Dennis G. Podlesak	 		 	Name: Arlene Morris
	Title: Chairman of the Board	 		 		 	

  

			
	Exhibit A:	  	Release (Individual Termination – Age 40 or Older)
		
	Exhibit B:	  	Release (Individual and Group Termination – Under Age 40)
		
	Exhibit C:	  	Release (Group Termination – Age 40 or Older)

 EXHIBIT A 

RELEASE 
 (INDIVIDUAL
TERMINATION – AGE 40 OR OLDER) 
 Certain capitalized terms used in this Release are defined in the Executive Severance Benefits
Agreement (the “Agreement”) which I have executed and of which this Release is a part. 
 I hereby confirm my
obligations under the Confidentiality Agreement (or other comparable agreement that I have signed, if any). 
 I acknowledge that I
have read and understand Section 1542 of the California Civil Code which reads as follows: “A general release does not extend to claims which the creditor does not know or suspect to exist in his or her favor at the time of executing
the release, which if known by him or her must have materially affected his or her settlement with the debtor.” I hereby expressly waive and relinquish all rights and benefits under that section and any law of any jurisdiction of similar
effect with respect to my release of any claims provided herein.  
 Except as otherwise set forth in this Release, I hereby release,
acquit and forever discharge the Company, its parents and subsidiaries, and their officers, directors, agents, servants, employees, shareholders, successors, assigns and affiliates, of and from any and all claims, liabilities, demands, causes of
action, costs, expenses, attorneys’ fees, damages, indemnities and obligations of every kind and nature, in law, equity or otherwise, known and unknown, suspected and unsuspected, disclosed and undisclosed (other than any claim for
indemnification I may have as a result of any third party action against me based on my employment with the Company), arising out of or in any way related to agreements, events, acts or conduct at any time prior to the date I execute this Release,
including, but not limited to: all such claims and demands directly or indirectly arising out of or in any way connected with my employment with the Company or the termination of that employment, including, but not limited to, claims of intentional
and negligent infliction of emotional distress, any and all tort claims for personal injury, claims or demands related to salary, bonuses, commissions, stock, stock options, or any other ownership interests in the Company, vacation pay, fringe
benefits, expense reimbursements, severance pay, or any other form of compensation; and claims pursuant to any federal, state or local law or cause of action including, but not limited to, the federal Civil Rights Act of 1964, as amended, the
federal Age Discrimination in Employment Act of 1967, as amended (“ADEA”), the federal Employee Retirement Income Security Act of 1974, as amended, the federal Americans with Disabilities Act of 1990, the California Fair
Employment and Housing Act, as amended, the New York City Human Rights Law, as amended, the Massachusetts Fair Employment Practices Law, as amended, the South Carolina Human Affairs Law, as amended, tort law, contract law, wrongful discharge,
discrimination, fraud, defamation, emotional distress, and breach of the implied covenant of good faith and fair dealing; provided, however, that nothing in this paragraph shall be construed in any way to (1) release the Company from its
obligation to indemnify me pursuant to the Company’s indemnification obligation pursuant to written agreement or applicable law; (2) release any claim by me against the Company relating to the validity or enforceability of this release or
the Agreement; (3) prohibit me from exercising any non-waivable right to file a charge with the United States Equal Employment Opportunity Commission (“EEOC”), the National Labor Relations Board (“NLRB”), or any other
government agency (provided, however, that Employee shall not be entitled to recover any monetary damages or to obtain non-monetary relief if the agency were to pursue any claims relating to Employee’s employment with the Company). 

I acknowledge that I am knowingly and voluntarily waiving and releasing any rights I may have under the ADEA. I also acknowledge that the
consideration given under the Agreement for the waiver 

  
 A-1 

 
and release in the preceding paragraph hereof is in addition to anything of value to which I was already entitled. I further acknowledge that I have been advised by this writing, as required by
the ADEA, that: (A) my waiver and release do not apply to any rights or claims that may arise on or after the date I execute this Release; (B) I have the right to consult with an attorney prior to executing this Release; (C) I have
twenty-one (21) days to consider this Release (although I may choose to voluntarily execute this Release earlier); (D) I have seven (7) days following my execution of this Release to revoke the Release [by providing a written notice
of revocation to the Company’s Chief Executive Officer]; and (E) this Release shall not be effective until the date upon which the revocation period has expired, which shall be the eighth (8th) day after I execute this Release
(provided that I do not revoke it). 
 I hereby represent that I have been paid all compensation owed and for all hours worked, I have
received all the leave and leave benefits and protections for which I am eligible, pursuant to the federal Family and Medical Leave Act, the California Family Rights Act, any Company policy or applicable law, and I have not suffered any on-the-job
injury or illness for which I have not already filed a workers’ compensation claim. 
 I agree that I will not make any disparaging
statements regarding the Company or its officers, directors, shareholders, members, agents or products jointly or severally. The foregoing shall not be violated by truthful statements in response to legal process, required governmental testimony or
filings, or administrative or arbitral proceedings (including, without limitation, depositions in connection with such proceedings). 
  

	
	EXECUTIVE:
	
	   

	Signature
	
	   

	Printed Name
	
	Date:

  
 A-2 

 EXHIBIT B 

RELEASE 
 (INDIVIDUAL AND
GROUP TERMINATION – UNDER AGE 40) 
 Certain capitalized terms used in this Release are defined in the Executive Severance Benefits
Agreement (the “Agreement”) which I have executed and of which this Release is a part. 
 I hereby confirm my
obligations under the Confidentiality Agreement (or other comparable agreement that I have signed, if any). 
 I acknowledge that I
have read and understand Section 1542 of the California Civil Code which reads as follows: “A general release does not extend to claims which the creditor does not know or suspect to exist in his or her favor at the time of executing
the release, which if known by him or her must have materially affected his or her settlement with the debtor.” I hereby expressly waive and relinquish all rights and benefits under that section and any law of any jurisdiction of similar
effect with respect to my release of any claims provided herein.  
 Except as otherwise set forth in this Release, I hereby release,
acquit and forever discharge the Company, its parents and subsidiaries, and their officers, directors, agents, servants, employees, shareholders, successors, assigns and affiliates, of and from any and all claims, liabilities, demands, causes of
action, costs, expenses, attorneys’ fees, damages, indemnities and obligations of every kind and nature, in law, equity or otherwise, known and unknown, suspected and unsuspected, disclosed and undisclosed (other than any claim for
indemnification I may have as a result of any third party action against me based on my employment with the Company), arising out of or in any way related to agreements, events, acts or conduct at any time prior to the date I execute this Release,
including, but not limited to: all such claims and demands directly or indirectly arising out of or in any way connected with my employment with the Company or the termination of that employment, including, but not limited to, claims of intentional
and negligent infliction of emotional distress, any and all tort claims for personal injury, claims or demands related to salary, bonuses, commissions, stock, stock options, or any other ownership interests in the Company, vacation pay, fringe
benefits, expense reimbursements, severance pay, or any other form of compensation; and claims pursuant to any federal, state or local law or cause of action including, but not limited to, the federal Civil Rights Act of 1964, as amended, the
federal Employee Retirement Income Security Act of 1974, as amended, the federal Americans with Disabilities Act of 1990, the California Fair Employment and Housing Act, as amended, the New York City Human Rights Law, as amended, the Massachusetts
Fair Employment Practices Law, as amended, the South Carolina Human Affairs Law, as amended, tort law, contract law, wrongful discharge, discrimination, fraud, defamation, emotional distress, and breach of the implied covenant of good faith and fair
dealing; provided, however, that nothing in this paragraph shall be construed in any way to (1) release the Company from its obligation to indemnify me pursuant to the Company’s indemnification obligation pursuant to written agreement or
applicable law; (2) release any claim by me against the Company relating to the validity or enforceability of this release or the Agreement; (3) prohibit me from exercising any non-waivable right to file a charge with the United States
Equal Employment Opportunity Commission (“EEOC”), the National Labor Relations Board (“NLRB”), or any other government agency (provided, however, that Employee shall not be entitled to recover any monetary damages or to obtain
non-monetary relief if the agency were to pursue any claims relating to Employee’s employment with the Company). 
 I acknowledge that
the consideration given under the Agreement for the waiver and release in the preceding paragraph hereof is in addition to anything of value to which I was already entitled. I further acknowledge that I have been advised by this writing that:
(A) my waiver and release do not apply to any 

  
 B-1 

 
rights or claims that may arise on or after the date I execute this Release; (B) I have the right to consult with an attorney prior to executing this Release; and (C) I have twenty-one
(21) days to consider this Release (although I may choose to voluntarily execute this Release earlier). 
 I hereby represent that I
have been paid all compensation owed and for all hours worked, I have received all the leave and leave benefits and protections for which I am eligible, pursuant to the federal Family and Medical Leave Act, the California Family Rights Act, any
Company policy or applicable law, and I have not suffered any on-the-job injury or illness for which I have not already filed a workers’ compensation claim. 

I agree that I will not make any disparaging statements regarding the Company or its officers, directors, shareholders, members, agents or
products jointly or severally. The foregoing shall not be violated by truthful statements in response to legal process, required governmental testimony or filings, or administrative or arbitral proceedings (including, without limitation, depositions
in connection with such proceedings). 
  

	
	EXECUTIVE:
	
	   

	Signature
	
	   

	Printed Name
	
	Date:

  
 B-2 

 EXHIBIT C 

RELEASE 
 (GROUP
TERMINATION – AGE 40 OR OLDER) 
 Certain capitalized terms used in this Release are defined in the Executive Severance Benefits
Agreement (the “Agreement”) which I have executed and of which this Release is a part. 
 I hereby confirm my
obligations under the Confidentiality Agreement (or other comparable agreement that I have signed, if any). 
 I acknowledge that I
have read and understand Section 1542 of the California Civil Code which reads as follows: “A general release does not extend to claims which the creditor does not know or suspect to exist in his or her favor at the time of executing
the release, which if known by him or her must have materially affected his or her settlement with the debtor.” I hereby expressly waive and relinquish all rights and benefits under that section and any law of any jurisdiction of similar
effect with respect to my release of any claims provided herein. 
 Except as otherwise set forth in this Release, I hereby release,
acquit and forever discharge the Company, its parents and subsidiaries, and their officers, directors, agents, servants, employees, shareholders, successors, assigns and affiliates, of and from any and all claims, liabilities, demands, causes of
action, costs, expenses, attorneys’ fees, damages, indemnities and obligations of every kind and nature, in law, equity or otherwise, known and unknown, suspected and unsuspected, disclosed and undisclosed (other than any claim for
indemnification I may have as a result of any third party action against me based on my employment with the Company), arising out of or in any way related to agreements, events, acts or conduct at any time prior to the date I execute this Release,
including, but not limited to: all such claims and demands directly or indirectly arising out of or in any way connected with my employment with the Company or the termination of that employment, including, but not limited to, claims of intentional
and negligent infliction of emotional distress, any and all tort claims for personal injury, claims or demands related to salary, bonuses, commissions, stock, stock options, or any other ownership interests in the Company, vacation pay, fringe
benefits, expense reimbursements, severance pay, or any other form of compensation; and claims pursuant to any federal, state or local law or cause of action including, but not limited to, the federal Civil Rights Act of 1964, as amended, the
federal Age Discrimination in Employment Act of 1967, as amended (“ADEA”), the federal Employee Retirement Income Security Act of 1974, as amended, the federal Americans with Disabilities Act of 1990, the California Fair
Employment and Housing Act, as amended, the New York City Human Rights Law, as amended, the Massachusetts Fair Employment Practices Law, as amended, the South Carolina Human Affairs Law, as amended, tort law, contract law, wrongful discharge,
discrimination, fraud, defamation, emotional distress, and breach of the implied covenant of good faith and fair dealing; provided, however, that nothing in this paragraph shall be construed in any way to (1) release the Company from its
obligation to indemnify me pursuant to the Company’s indemnification obligation pursuant to written agreement or applicable law; (2) release any claim by me against the Company relating to the validity or enforceability of this release or
the Agreement; (3) prohibit me from exercising any non-waivable right to file a charge with the United States Equal Employment Opportunity Commission (“EEOC”), the National Labor Relations Board (“NLRB”), or any other
government agency (provided, however, that Employee shall not be entitled to recover any monetary damages or to obtain non-monetary relief if the agency were to pursue any claims relating to Employee’s employment with the Company). 

I acknowledge that I am knowingly and voluntarily waiving and releasing any rights I may have under the ADEA. I also acknowledge that the
consideration given under the Agreement for the waiver 

  
 C-1 

 
and release in the preceding paragraph hereof is in addition to anything of value to which I was already entitled. I further acknowledge that I have been advised by this writing, as required by
the ADEA, that: (A) my waiver and release do not apply to any rights or claims that may arise on or after the date I execute this Release; (B) I have the right to consult with an attorney prior to executing this Release; (C) I have
forty-five (45) days to consider this Release (although I may choose to voluntarily execute this Release earlier); (D) I have seven (7) days following my execution of this Release to revoke the Release [by providing a written notice
of revocation to the Company’s Chief Executive Officer]; (E) this Release shall not be effective until the date upon which the revocation period has expired, which shall be the eighth day (8th) after I execute this Release; and
(F) I have received with this Release the required written disclosure for a “group termination” under the ADEA, including a detailed list of the job titles and ages of all employees who were terminated in this group termination and
the ages of all employees of the Company in the same job classification or organizational unit who were not terminated. 
 I hereby
represent that I have been paid all compensation owed and for all hours worked, I have received all the leave and leave benefits and protections for which I am eligible, pursuant to the federal Family and Medical Leave Act, the California Family
Rights Act, any Company policy or applicable law, and I have not suffered any on-the-job injury or illness for which I have not already filed a workers’ compensation claim. 

I agree that I will not engage in any conduct that is injurious to the reputation of the Company or its parents, subsidiaries and affiliates,
including but not limited to disparagement of the Company, its officers, Board members, employees and shareholders. The foregoing shall not be violated by a statement made in a deposition, trial or administrative proceeding in response to legal
process; by any statement made to a government agency; or whenever I make any statement to a court, administrative tribunal or government agency as required by law.

 

	
	EXECUTIVE:
	
	   

	Signature
	
	   

	Printed Name
	
	Date:

  
 C-2

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