Document:

Form of Nonstatutory Stock Option Agreement

 Exhibit 10.20 
 Attached hereto is a form of non-statutory stock option agreement by and among the Registrant and each of the below-named persons. The non-statutory stock option agreement by and among the Registrant and each of the below-named persons is
substantially identical in all material respects to such form, except with respect to the details that are set forth below. 
 The number of shares and the
exercise or purchase price of each of the awards listed in the table below is presented after giving effect to the business combination between Discovery Partners International, Inc. (“Discovery Partners”) and Infinity Pharmaceuticals,
Inc. (“IPI”) in accordance with the terms of the Agreement and Plan of Merger among Discovery Partners, Darwin Corp, a wholly owned subsidiary of Discovery Partners (“Darwin Corp.”), and IPI dated as of April 11, 2006,
pursuant to which IPI merged with and into Darwin Corp. and became a wholly owned subsidiary of Discovery Partners and Discovery Partners changed its name to Infinity Pharmaceuticals, Inc. In addition, the number of shares and the exercise or
purchase price of each of the awards listed in the table below is presented after giving effect to the Registrant’s 1-for-4 reverse stock split, which became effective on September 12, 2006. 
  

									
	 Date of
 Agreement
	 	 Name
	 	 Number of Shares
 Subject to Award
	 	 Exercise/
Purchase Price
	 	 Vesting

	 6/12/06
	 	D. Ronald Daniel	 	2,210	 	$3.48	 	(1)
					
	 6/12/06
	 	Eric Lander	 	2,210	 	$3.48	 	(1)
					
	 6/12/06
	 	Arnold Levine	 	2,210	 	$3.48	 	(1)
					
	 6/12/06
	 	Franklin Moss	 	2,210	 	$3.48	 	(1)
					
	 6/12/06
	 	Viki Sato	 	2,210	 	$3.48	 	(1)
					
	   3/1/05
	 	Viki Sato	 	2,210	 	$2.04	 	(2)
					
	   3/1/05
	 	Viki Sato	 	5,525	 	$2.04	 	(3)

 (1) Vests and becomes exercisable as to 552 shares on
June 12, 2006, 184 shares on June 30, 2006 and the remainder in monthly installments through February 2007. 
 (2) This award is currently fully
vested. In accordance with the terms of such award, the underlying shares initially became exercisable, or “vested’” in time-based installments. 
 (3) Vests and becomes exercisable in equal monthly installments over four years, beginning on March 31, 2005. 

 Infinity Pharmaceuticals, Inc. 
 Nonstatutory Stock Option Agreement 
 Granted Under 2001 Stock Incentive Plan

  

	1.	Grant of Option. 

 This agreement evidences the
grant by Infinity Pharmaceuticals, Inc., a Delaware corporation (the “Company”), on _______, 200_ (the “Grant Date”) to ________, a consultant to the Company (the “Participant”), of an option to purchase, in whole or in
part, on the terms provided herein and in the Company’s 2001 Stock Incentive Plan (the “Plan”), a total of ________ shares (the “Shares”) of common stock, $.0001 par value per share, of the Company (“Common Stock”)
at $_____ per Share. Unless earlier terminated, this option shall expire on ____________ (the “Final Exercise Date”). 
 It is
intended that the option evidenced by this agreement shall not be an incentive stock option as defined in Section 422 of the Internal Revenue Code of 1986, as amended, and any regulations promulgated thereunder (the “Code”). Except as
otherwise indicated by the context, the term “Participant”, as used in this option, shall be deemed to include any person who acquires the right to exercise this option validly under its terms. 
  

	2.	Vesting Schedule. 

 (a) Vesting. Subject to
Section 3 below, this option will become exercisable (“vest”) as to ____________) of the original number of Shares starting __________, and as to an additional ___________ of the original number of Shares at the end of each successive
month following __________ until __________. The shares subject to the portion of this option that are not yet exercisable are referred to herein as “Unvested Shares,” and the shares subject to the portion of this option that has become
exercisable are referred to herein as “Vested Shares.” 
 The right of exercise shall be cumulative so that to the extent the
option is not exercised in any period to the maximum extent permissible it shall continue to be exercisable, in whole or in part, with respect to all shares for which it is vested until the earlier of the Final Exercise Date or the termination of
this option under Section 3 hereof or the Plan. 
 (b) Early Exercise. Notwithstanding the vesting schedule set forth in
paragraph (a), the Participant may elect to exercise this option as to the Unvested Shares (in addition to the Vested Shares) if simultaneously with such exercise the Participant enters into a Stock Restriction Agreement with the Company in the form
attached hereto as Exhibit A (the “Stock Restriction Agreement”). The Stock Restriction Agreement provides that the Unvested Shares shall be subject to a right of repurchase (the “Purchase Option”) in favor of the Company
in the event that the Participant ceases to provide services to the Company, as that term is defined in the Plan. 

	3.	Exercise of Option. 

 (a) Form of Exercise.
Subject to the procedures set forth in this Agreement, each election to exercise this option shall be in writing in the form attached to this Agreement as Exhibit B, signed by the Participant, and received by the Company at its principal
office, accompanied by this agreement, and payment in full in accordance with Section 4. The Participant may purchase less than the number of shares covered hereby, provided that no partial exercise of this option may be for any fractional
share. 
 (b) Continuous Relationship with the Company Required. Except as otherwise provided in this Section 3, this option may
not be exercised unless the Participant, at the time he or she exercises this option, is, and has been at all times since the Grant Date, an employee, officer, director, consultant or advisor, as the case may be, to the Company or any parent or
subsidiary of the Company as defined in Section 424(e) or (f) of the Code (an “Eligible Participant”). 
 (c)
Termination of Relationship with the Company. If the Participant ceases to be an Eligible Participant for any reason, then, except as provided in paragraph (d) below, the right to exercise this option shall terminate three months after
such cessation (but in no event after the Final Exercise Date), provided that this option shall be exercisable only to the extent that the Participant was entitled to exercise this option on the date of such cessation. Notwithstanding
the foregoing, if the Participant, prior to the Final Exercise Date, violates the non-competition or confidentiality provisions of any employment contract, confidentiality and nondisclosure agreement or other agreement between the Participant and
the Company, the right to exercise this option shall terminate immediately upon such violation. The rights provided in this paragraph are also subject to the limitations provided in paragraph (e) below. 
 (d) Exercise Period Upon Death or Disability. If the Participant dies or becomes permanently and totally disabled (within the meaning of
Section 22(e)(3) of the Code) prior to the Final Exercise Date while he or she is an Eligible Participant and the Company has not terminated such relationship for “cause” as specified in paragraph (e) below, this option shall be
exercisable, within the period of one year following the date of death or disability of the Participant, by the Participant (or in the case of death by an authorized transferee), provided that this option shall be exercisable only to
the extent that this option was exercisable by the Participant on the date of his or her death or disability, and further provided that this option shall not be exercisable after the Final Exercise Date. 
 (e) Discharge for Cause. If the Participant, prior to the Final Exercise Date, is discharged by the Company for “cause” (as defined
below), the right to exercise this option shall terminate immediately upon the effective date of such discharge. “Cause” shall mean willful misconduct by the Participant or willful failure by the Participant to perform his or her
responsibilities to the Company (including, without limitation, breach by the Participant of any provision of any employment, consulting, advisory, nondisclosure, non-competition or other similar agreement between the Participant and the Company),
as determined by the Company, which determination shall be conclusive. The Participant shall be considered to have been discharged for “Cause” if the Company determines, within 30 days after the Participant’s resignation, that
discharge for cause was warranted. 
  

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	4.	Payment of Purchase Price. 

 (a) Method of
Payment. Payment of the purchase price for shares purchased upon exercise of this option shall be made by any means permitted by the terms of the Plan. 
  

	5.	Right of First Refusal. 

 (a) If the Participant
proposes to sell, assign, transfer, pledge, hypothecate or otherwise dispose of, by operation of law or otherwise (collectively, “transfer”) any Shares acquired upon exercise of this option, then the Participant shall first give written
notice of the proposed transfer (the “Transfer Notice”) to the Company. The Transfer Notice shall name the proposed transferee and state the number of such Shares the Participant proposes to transfer (the “Offered Shares”), the
price per share and all other material terms and conditions of the transfer. 
 (b) For 30 days following its receipt of such Transfer
Notice, the Company shall have the option to purchase all (but not less than all) of the Offered Shares at the price and upon the terms set forth in the Transfer Notice. In the event the Company elects to purchase all of the Offered Shares, it shall
give written notice of such election to the Participant within such 30-day period. Within 10 days after his receipt of such notice, the Participant shall tender to the Company at its principal offices the certificate or certificates representing the
Offered Shares, duly endorsed in blank by the Participant or with duly endorsed stock powers attached thereto, all in a form suitable for transfer of the Offered Shares to the Company. Promptly following receipt of such certificate or certificates,
the Company shall deliver or mail to the Participant a check in payment of the purchase price for the Offered Shares; provided that if the terms of payment set forth in the Transfer Notice were other than cash against delivery, the
Company may pay for the Offered Shares on the same terms and conditions as were set forth in the Transfer Notice; and provided further that any delay in making such payment shall not invalidate the Company’s exercise of its option
to purchase the Offered Shares. 
 (c) If the Company does not elect to acquire all of the Offered Shares, the Participant may, within the
30-day period following the expiration of the option granted to the Company under subsection (b) above, transfer the Offered Shares to the proposed transferee, provided that such transfer shall not be on terms and conditions more
favorable to the transferee than those contained in the Transfer Notice. Notwithstanding any of the above, all Offered Shares transferred pursuant to this Section 5 shall remain subject to the right of first refusal set forth in this
Section 5 and such transferee shall, as a condition to such transfer, deliver to the Company a written instrument confirming that such transferee shall be bound by all of the terms and conditions of this Section 5. 
 (d) After the time at which the Offered Shares are required to be delivered to the Company for transfer to the Company pursuant to subsection
(b) above, the Company shall not pay any dividend to the Participant on account of such Offered Shares or permit the Participant to exercise any of the privileges or rights of a stockholder with respect to such Offered Shares, but shall, in so
far as permitted by law, treat the Company as the owner of such Offered Shares. 
  

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 (e) The following transactions shall be exempt from the provisions of this Section 5: 
 (1) any transfer of Shares to or for the benefit of any spouse, domestic partner sharing the same household as the Participant, sibling,
child or grandchild of the Participant, or to a trust for their benefit; 
 (2) any transfer pursuant to an effective
registration statement filed by the Company under the Securities Act of 1933, as amended (the “Securities Act”); and 
 (3) the sale of all or substantially all of the shares of capital stock of the Company (including pursuant to a merger or consolidation); 
 provided, however, that in the case of a transfer pursuant to clause (1) above, such Shares shall remain subject to the right of first refusal set forth in this Section 5 and such transferee shall, as a condition to
such transfer, deliver to the Company a written instrument confirming that such transferee shall be bound by all of the terms and conditions of this Section 5. 
 (f) The Company may assign its rights to purchase Offered Shares in any particular transaction under this Section 5 to one or more persons or entities. 
 (g) The provisions of this Section 5 shall terminate upon the earlier of the following events: 
 (1) the closing of the sale of shares of Common Stock in an underwritten public offering pursuant to an effective registration statement
filed by the Company under the Securities Act; or 
 (2) the sale of all or substantially all of the capital stock, assets or
business of the Company, by merger, consolidation, sale of assets or otherwise (other than a merger or consolidation in which all or substantially all of the individuals and entities who were beneficial owners of the Common Stock immediately prior
to such transaction beneficially own, directly or indirectly, more than 75% of the outstanding securities entitled to vote generally in the election of directors of the resulting, surviving or acquiring corporation in such transaction). 

(h) The Company shall not be required (a) to transfer on its books any of the Shares which shall have been sold or transferred in violation of
any of the provisions set forth in this Section 5, or (b) to treat as owner of such Shares or to pay dividends to any transferee to whom any such Shares shall have been so sold or transferred. 
  

	6.	Agreement in Connection with Public Offering. 

 The
Participant agrees, in connection with the initial underwritten public offering of the Company’s securities pursuant to a registration statement under the Securities Act, (i) not to sell, make short sale of, loan, grant any options for the
purchase of, or otherwise dispose of any shares of Common Stock held by the Participant (other than those shares included in the offering) without the prior written consent of the Company or the underwriters managing such initial underwritten public
offering of the Company’s securities for a period of 180 days from the effective date of such registration statement, and (ii) to execute any agreement reflecting clause (i) above as may be requested by the Company or the managing
underwriters at the time of such offering. 
  

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	7.	Legends on Stock Certificates. 

 All stock
certificates representing Shares issued to the Participant upon exercise of this option shall have affixed thereto legends substantially in the following forms, in addition to any other legends required by applicable federal or state law:

 “The shares of stock represented by this certificate have not been registered under the Securities Act of 1933 and may not be
transferred, sold or otherwise disposed of in the absence of an effective registration statement with respect to the shares evidenced by this certificate, filed and made effective under the Securities Act of 1933, or an opinion of counsel
satisfactory to the Company to the effect that registration under such Act is not required.” 
 “The shares of stock represented by
this certificate are subject to certain restrictions on transfer contained in a Stock Option Agreement, a copy of which will be furnished upon request by the issuer.” 
  

	8.	Withholding. 

 No Shares will be issued pursuant to
the exercise of this option unless and until the Participant pays to the Company, or makes provision satisfactory to the Company for payment of, any federal, state or local withholding taxes required by law to be withheld in respect of this option.

  

	9.	Nontransferability of Option. 

 This option may not
be sold, assigned, transferred, pledged or otherwise encumbered by the Participant, either voluntarily or by operation of law, except by will or the laws of descent and distribution, and, during the lifetime of the Participant, this option shall be
exercisable only by the Participant. 
  

	10.	Provisions of the Plan. 

 This option is subject to
the provisions of the Plan, a copy of which is furnished to the Participant with this option. 
  

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 IN WITNESS WHEREOF, the Company has caused this option to be executed under its corporate seal by its duly authorized
officer. This option shall take effect as a sealed instrument. 
  

									
		 		 	 Infinity Pharmaceuticals, Inc.

				
	 Dated: 
	 		 	 By:
	 	  
		 		 		 	 Name:
	 	
		 		 		 	 Title:
	 	

 PARTICIPANT’S ACCEPTANCE 
 The undersigned hereby accepts the foregoing option and agrees to the terms and conditions thereof. The undersigned hereby acknowledges receipt of a copy
of the Company’s 2001 Stock Incentive Plan. 
  

			
	PARTICIPANT:
	
	  
	Address: 	 	
		 	

  

 - 6 -Form of Stock Restriction Agreement

 Exhibit 10.21 
 Attached hereto is a form of stock restriction agreement by and among the Registrant and each of the below-named persons. The stock restriction agreement by and among the Registrant and each of the below-named persons is substantially
identical in all material respects to such form, except with respect to the details that are set forth below. 
 The number of shares and the exercise or
purchase price of each of the awards listed in the table below is presented after giving effect to the business combination between Discovery Partners International, Inc. (“Discovery Partners”) and Infinity Pharmaceuticals, Inc.
(“IPI”) in accordance with the terms of the Agreement and Plan of Merger among Discovery Partners, Darwin Corp, a wholly owned subsidiary of Discovery Partners (“Darwin Corp.”), and IPI dated as of April 11, 2006, pursuant
to which IPI merged with and into Darwin Corp. and became a wholly owned subsidiary of Discovery Partners and Discovery Partners changed its name to Infinity Pharmaceuticals, Inc. In addition, the number of shares and the exercise or purchase price
of each of the awards listed in the table below is presented after giving effect to the Registrant’s 1-for-4 reverse stock split, which became effective on September 12, 2006. 
  

									
	 Date of
 Agreement
	 	 Name
	 	 Number of Shares
 Subject to Award
	 	 Exercise/
Purchase Price
	 	 Vesting

	 8/14/01
	 	Arnold Levine	 	11,051	 	$0.68	 	(1)
					
	 8/14/01
	 	Franklin Moss	 	11,051	 	$0.68	 	(1)
					
	 8/14/01
	 	D. Ronald Daniel	 	11,051	 	$0.68	 	(1)

 (1) Each of these awards is currently fully vested. In
accordance with the terms of each such award, the underlying shares were initially subject to a right of repurchase which right of repurchase lapsed, or “vested” as to the shares underlying the award in time-based installments. 

 STOCK RESTRICTION AGREEMENT 
 AGREEMENT made this          day of
                         200  , between Infinity Pharmaceuticals, Inc., a Delaware corporation (the
“Company”), and                              (the “Director”). 
 For valuable consideration, receipt of which is acknowledged, the parties hereto agree as follows: 
 1. Purchase of Shares. The Company shall issue and sell to the Director and the Director shall purchase from the Company, subject to the terms and
conditions set forth in this Agreement and in the Company’s 2001 Stock Incentive Plan (the “Plan”), an aggregate of                  shares (the
“Shares”) of common stock, $.0001 par value per share (“Common Stock”) of the Company at a price of $         per share (the “Option Price”), purchasable as set forth in and
subject to the terms and conditions of this Agreement and the Plan. 
 The aggregate purchase price for the Shares shall be paid by the
Director in accordance with the terms of the Plan and the Stock Option Agreement issued to the Director thereunder. Upon receipt of payment by the Company for the Shares, the Company shall issue to the Director one or more certificates in the name
of the Director for that number of Shares purchased by the Director. The Director agrees that the Shares shall be subject to the Purchase Option set forth in Section 2 of this Agreement and the restrictions on transfer set forth in
Section 4 of this Agreement. 
 2. Purchase Option. 
 (a) In the event that the Director ceases to provide services to the Company for any reason or no reason, with or without cause, prior to
                            , the Company shall have the right and option (the “Purchase Option”)
to purchase from the Director, for a sum equal to the Option Price per share, any shares then subject to the Purchase Option. All of the Shares shall be subject to the Purchase Option prior to
                            . On
                            ,
                             of such Shares will no longer be subject to the Purchase Option and at the end
of each full month thereafter,                              of such Shares shall no longer be subject to the
Purchase Option until such time as all of such Shares are no longer subject to the Purchase Option. 
 (b) Upon the occurrence of a Change of
Control Event (as hereinafter defined), the Purchase Option shall immediately lapse as to all remaining Unvested Shares, thereby rendering all Shares Vested Shares. For purposes of this subsection (c), a “Change of Control Event” shall
mean: 
 (i) the acquisition by an individual, entity or group (within the meaning of Section 13(d)(3) or 14(d)(2) of the
Exchange Act) (a “Person”) of beneficial ownership of any capital stock of the Company if, after such acquisition, such Person beneficially owns (within the meaning of Rule 13d-3 promulgated under the Exchange Act) 75% or more of either
(x) the then-outstanding shares of Common Stock (the “Outstanding Company Common Stock”) or (y) the combined voting power of the then-outstanding securities of the Company entitled to vote generally in the election of directors
(the “Outstanding Company Voting Securities”); provided, however, that for purposes of this subsection (i), the following acquisitions shall not constitute a Change in Control Event: (A) any acquisition directly from the
Company (excluding an 

 
acquisition pursuant to the exercise, conversion or exchange of any security exercisable for, convertible into or exchangeable for common stock or voting
securities of the Company, unless the Person exercising, converting or exchanging such security acquired such security directly from the Company or an underwriter or agent of the Company), (B) any acquisition by any employee benefit plan (or
related trust) sponsored or maintained by the Company or any corporation controlled by the Company, or (C) any acquisition by any corporation pursuant to a Business Combination (as defined below) which complies with clauses (x) and
(y) of subsection (ii) of this definition; or 
 (ii) the consummation of a merger, consolidation, reorganization,
recapitalization or share exchange involving the Company or a sale or other disposition of all or substantially all of the assets of the Company (a “Business Combination”), unless, immediately following such Business Combination, each of
the following two conditions is satisfied: (x) all or substantially all of the individuals and entities who were the beneficial owners of the Outstanding Company Common Stock and Outstanding Company Voting Securities immediately prior to such
Business Combination beneficially own, directly or indirectly, more than 50% of the then-outstanding shares of common stock and the combined voting power of the then-outstanding securities entitled to vote generally in the election of directors,
respectively, of the resulting or acquiring corporation in such Business Combination (which shall include, without limitation, a corporation which as a result of such transaction owns the Company or substantially all of the Company’s assets
either directly or through one or more subsidiaries) (such resulting or acquiring corporation is referred to herein as the “Acquiring Corporation”) in substantially the same proportions as their ownership of the Outstanding Company Common
Stock and Outstanding Company Voting Securities, respectively, immediately prior to such Business Combination and (y) no Person (excluding the Acquiring Corporation or any employee benefit plan (or related trust) maintained or sponsored by the
Company or by the Acquiring Corporation) beneficially owns, directly or indirectly, 75% or more of the then-outstanding shares of common stock of the Acquiring Corporation, or of the combined voting power of the then-outstanding securities of such
corporation entitled to vote generally in the election of directors (except to the extent that such ownership existed prior to the Business Combination). 
 3. Exercise of Purchase Option and Closing. 
 (a) The Company may exercise the
Purchase Option by delivering or mailing to the Director (or his estate), in accordance with Section 13, within 90 days after the termination of the service of the Director for the Company, a written notice of exercise of the Purchase Option.
Such notice shall specify the number of Shares to be purchased. If and to the extent the Purchase Option is not so exercised by the giving of such a notice within such 90-day period, the Purchase Option shall automatically expire and terminate
effective upon the expiration of such 90-day period. 
 (b) Within 10 days after his receipt of the Company’s notice of
the exercise of the Purchase Option pursuant to subsection (a) above, the Director (or his estate or any escrow agent) shall tender to the Company at its principal offices the certificate or certificates representing the Shares which the
Company has elected to purchase, duly endorsed in blank by the Director or with duly endorsed stock powers attached thereto, all in form suitable for the transfer of such Shares to the Company. Upon its receipt of such certificate or certificates,
the 

  

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Company shall pay the aggregate Option Price therefor in the form of a check or by canceling indebtedness owed by the Director to the Company, or any
combination thereof. 
 (c) After the time at which any Shares are required to be delivered to the Company for transfer to the
Company pursuant to subsection (b) above, the Company shall not pay any dividend to the Director on account of such Shares or permit the Director to exercise any of the privileges or rights of a stockholder with respect to such Shares, but
shall, in so far as permitted by law, treat the Company as the owner of such Shares. 
 (d) In the event that, due to the sale
(whether by foreclosure or otherwise), transfer, assignment or other disposition of the Shares (other than pursuant to the Company’s exercise of the Purchase Option) (each, a “Sale Event”), the Company is unable to exercise the
Purchase Option with respect to any Shares for which the Purchase Option has not terminated (the “Repurchase Shares”), the Director agrees to pay the Company, as liquidated damages, a sum, if any, by which the market value of the
Repurchase Shares (as determined by such Sale Event) exceeds the aggregate Option Price paid for the Repurchase Shares (the “Damage Amount”). 
 (e) The Company shall not purchase any fraction of a Share upon exercise of the Purchase Option, and any fraction of a Share resulting from a computation made pursuant to Section 2 of this Agreement shall be
rounded to the nearest whole Share (with any one-half Share being rounded upward). 
 4. Restrictions on Transfer. The Director shall
not sell, assign, transfer, pledge, hypothecate or otherwise dispose of, by operation of law or otherwise (collectively “transfer”) any Shares, or any interest therein, that are subject to the Purchase Option, except that the Director may
transfer such Shares to or for the benefit of any spouse, domestic partner sharing the same household as the Director, sibling, child or grandchild, or to a trust for their benefit,. provided that such Shares shall remain subject to this
Agreement (including without limitation the restrictions on transfer set forth in this Section 4 and the Purchase Option) and such permitted transferee shall, as a condition to such transfer, deliver to the Company a written instrument
confirming that such transferee shall be bound by all of the terms and conditions of this Agreement. 
 5. Effect of Prohibited
Transfer. The Company shall not be required (a) to transfer on its books any of the Shares which shall have been sold or transferred in violation of any of the provisions set forth in this Agreement, or (b) to treat as owner of such
Shares or to pay dividends to any transferee to whom any such Shares shall have been so sold or transferred. 
 6. Restrictive Legend.
All certificates representing Shares shall have affixed thereto a legend in substantially the following form, in addition to any other legends that may be required under federal or state securities laws: 
 “The shares of stock represented by this certificate are subject to restrictions on transfer and an option to purchase set forth in a certain Stock
Restriction Agreement between the corporation and the registered owner of these shares (or his predecessor in interest), 

  

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and such Agreement is available for inspection without charge at the office of the Secretary of the corporation.” 
 7. Adjustments for Stock Splits, Stock Dividends, etc. 
 (a) If from time to time during the term of the Purchase Option there is any stock split-up, stock dividend, stock distribution or other
reclassification of the Common Stock of the Company, any and all new, substituted or additional securities to which the Director is entitled by reason of his ownership of the Shares shall be immediately subject to the Purchase Option, the
restrictions on transfer and other provisions of this Agreement in the same manner and to the same extent as the Shares, and the Option Price shall be appropriately adjusted. 
 (b) If the Shares are converted into or exchanged for, or stockholders of the Company receive by reason of any distribution in total or
partial liquidation, securities of another corporation, or other property (including cash), pursuant to any merger of the Company or acquisition of its assets, then the rights of the Company under this Agreement shall inure to the benefit of the
Company’s successor and this Agreement shall apply to the securities or other property received upon such conversion, exchange or distribution in the same manner and to the same extent as the Shares. 
 8. Withholding Taxes. 
 (a) The Director acknowledges and agrees that the Company has the right to deduct from payments of any kind otherwise due to the Director any federal, state or local taxes of any kind required by law to be withheld with respect to the
purchase of the Shares by the Director or the lapse of the Purchase Option. 
 (b) The Director acknowledges that he has been
informed of the advisability of making an election in accordance with Section 83(b) of the Internal Revenue Code of 1986, as amended; that such election must be filed with the Internal Revenue Service within 30 days of the transfer of shares to
the Director; and that the Director is solely responsible for making such election. 
 9. Severability. The invalidity or
unenforceability of any provision of this Agreement shall not affect the validity or enforceability of any other provision of this Agreement, and each other provision of this Agreement shall be severable and enforceable to the extent permitted by
law. 
 10. Waiver. Any provision contained in this Agreement may be waived, either generally or in any particular instance, by the
Board of Directors of the Company. 
 11. Binding Effect. This Agreement shall be binding upon and inure to the benefit of the Company
and the Director and their respective heirs, executors, administrators, legal representatives, successors and assigns, subject to the restrictions on transfer set forth in Section 4 of this Agreement. 
  

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 12. No Rights To Continued Service as a Director. Nothing contained in this Agreement shall be
construed as giving the Director any right to continued service as a Director of the Company. 
 13. Notice. All notices required or
permitted hereunder shall be in writing and deemed effectively given upon personal delivery or upon deposit in the United States Post Office, by registered or certified mail, postage prepaid, addressed to the other party hereto at the address shown
beneath his or its respective signature to this Agreement, or at such other address or addresses as either party shall designate to the other in accordance with this Section 13. 
 14. Pronouns. Whenever the context may require, any pronouns used in this Agreement shall include the corresponding masculine, feminine or neuter
forms, and the singular form of nouns and pronouns shall include the plural, and vice versa. 
 15. Entire Agreement. This Agreement
and the Plan constitute the entire agreement between the parties, and supersedes all prior agreements and understandings, relating to the subject matter of this Agreement. 
 16. Amendment. This Agreement may be amended or modified only by a written instrument executed by both the Company and the Director. 

17. Governing Law. This Agreement shall be construed, interpreted and enforced in accordance with the laws of the Commonwealth of
Massachusetts. 
 18. Delivery of Certificates. The Director authorizes the Company, on his or her behalf, to hold the stock
certificates representing the Shares until the latest of: 
  

	 	(i)	the date on which the Shares are no longer subject to the Purchase Option; 

  

	 	(ii)	the closing of an initial underwritten public offering of the Company’s securities pursuant to an effective registration statement filed by the Company under the Securities
Act; 

  

	 	(iii)	a sale of all or substantially all of the capital stock, assets or business of the Company, by merger, consolidation, sale of assets or otherwise; or 

  

	 	(iv)	the date which is no later than thirty days (30) after the date on which the Director ceases to serve as Director of the Company. 

 19. Escrow. The Director shall execute Joint Escrow Instructions in the form attached hereto as Exhibit B simultaneously with the execution
hereof. The Joint Escrow Instructions shall be delivered to the person named by the Company to serve as escrow agent thereunder. The Director shall simultaneously deliver to such escrow agent a stock assignment duly endorsed in blank and hereby
instructs the Company to deliver to such escrow agent, on behalf of the Director, the certificate(s) evidencing the Shares issued hereunder. 
  

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

			
	INFINITY PHARMACEUTICALS, INC.
		
	By:	 	  
	Name:	 	
	Title:	 	

  

	
	DIRECTOR
	
	   
	(Signature)
	 
	Print Name

			
	Address:	 	
		 	

  
  

 - 6 -

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00110-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00110-of-00352.parquet"}]]