EX-10.2.(d)





 Exhibit 10.2(d) 

IMAGO BIOSCIENCES, INC. 

2012 EQUITY INCENTIVE PLAN 

STOCK PURCHASE RIGHT GRANT NOTICE AND 

RESTRICTED STOCK PURCHASE AGREEMENT 

Pursuant to its 2012 Equity Incentive Plan (the “Plan”), Imago BioSciences, Inc., a Delaware corporation (the
“Company”), hereby grants to the Purchaser listed below (“Purchaser”), the right to purchase the number of shares of the Company’s Common Stock set forth below (the “Shares”) at the purchase price set
forth below (the “Stock Purchase Right”). This Stock Purchase Right is subject to all of the terms and conditions set forth herein, in the Plan and in the certain Restricted Stock Purchase Agreement attached hereto as Exhibit
A (the “Restricted Stock Purchase Agreement”), each of which is incorporated herein by reference. Unless otherwise defined herein, the terms defined in the Plan shall have the same defined meanings in this Stock Purchase Right
Grant Notice (the “Grant Notice”) and the Restricted Stock Purchase Agreement. 
  

			
	Purchaser:	  	
		
	Date of Grant:	  	
		
	Vesting Start Date:	  	
		
	Purchase Price per Share:	  	
		
	Number of Shares:	  	
		
	Vesting Schedule:	  	 The Shares subject to this Share Purchase Right shall vest and be released from the Company’s Repurchase Option, as set forth in the
Restricted Stock Purchase Agreement, according to the following schedule:
  
 25% of the
Shares shall be released from the Company’s Repurchase Option (as defined in the Restricted Stock Purchase Agreement) on the first anniversary of the Vesting Start Date and 1/48th of the
total number of Shares shall be released from the Company’s Repurchase Option thereafter so that 100% of the Shares shall be released from such Repurchase Option on the fourth (4th)
anniversary of the Vesting Start Date, subject to Purchaser remaining a Service Provider through each such vesting date.

		
	Termination Date:	  	This Stock Purchase Right shall terminate if not exercised prior to the forty-fifth (45th) day following the Date of Grant set forth
above.

 By his or her signature and the Company’s signature below, Purchaser agrees to be bound by the terms and conditions of
the Plan, the Restricted Stock Purchase Agreement and this Grant Notice. Purchaser has reviewed the Restricted Stock Purchase Agreement, the Plan and this Grant Notice in their entirety, has had an opportunity to obtain the advice of counsel prior
to executing this Grant Notice and fully understands the provisions of this Grant Notice, the Restricted Stock Purchase 












 
Agreement and the Plan. Purchaser hereby agrees to accept as binding, conclusive and final all decisions or interpretations of the Administrator of the Plan upon any questions arising under the
Plan, this Grant Notice or the Restricted Stock Purchase Agreement. If Purchaser is married, his or her spouse has signed the Consent of Spouse attached to this Grant Notice as Exhibit D. 

 

									
	IMAGO BIOSCIENCES, INC.:	 		 	PURCHASER:
					
	By:	 	 	 		 	By:	 	 
		 	Hugh Y. Rienhoff, Jr.	 		 		 	
		 	President and Chief Executive Officer	 		 		 	
	Address:	 	  ### 
  ###	 		 	Address:	 	


  
 Signature Page to
Imago BioSciences, Inc. Stock Purchase Right Grant Notice 













 EXHIBIT A 

TO STOCK PURCHASE RIGHT GRANT NOTICE 

RESTRICTED STOCK PURCHASE AGREEMENT 

Pursuant to the Stock Purchase Right Grant Notice (the “Grant Notice”) to which this Restricted Stock Purchase Agreement
(this “Agreement”) is attached, Imago BioSciences, Inc., a Delaware corporation (the “Company”) has granted to Purchaser (as defined in the Grant Notice) the right to purchase the number of shares of Restricted
Stock under the Imago BioSciences, Inc. 2012 Equity Incentive Plan (the “Plan”) indicated in the Grant Notice. 
 1.
General. 
 (a) Defined Terms. Capitalized terms not specifically defined herein shall have the meanings specified in the Plan
and the Grant Notice. 
 (b) Incorporation of Terms of Plan. The Shares are subject to the terms and conditions of the Plan, which is
incorporated herein by reference. 
 2. Grant of Restricted Stock. 

(a) Grant of Restricted Stock. In consideration of Purchaser’s agreement to remain in the employ of the Company or its
Subsidiaries, if Purchaser is an Employee, or to continue to provide services to the Company or its Subsidiaries, if Purchaser is a Consultant, or to serve as a Director, if Purchaser is a Director, and for other good and valuable consideration,
effective as of the Date of Grant set forth in the Grant Notice (the “Grant Date”), the Company irrevocably grants to Purchaser the right to purchase the Shares at any time prior to the Termination Date set forth in
the Grant Notice, upon the terms and conditions set forth in the Plan and this Agreement. 
 (b) Purchase Price. The
purchase price of the Shares shall be as set forth in the Grant Notice, without commission or other charge (the “Purchase Price”). The Purchase Price shall be paid by cash or check. 

(c) Issuance of Shares. The issuance of the Shares under this Agreement shall occur at the principal office of the Company
simultaneously with the execution of this Agreement by the parties or on such other date as the Company and Purchaser shall agree (the “Issuance Date”). Subject to the provisions of Section 3 below, on the Issuance Date, the
Company shall issue the Shares (which shall be issued in Purchaser’s name). 
 (d) Conditions to Issuance of Stock Certificates.
The Shares, or any portion thereof, may be either previously authorized but unissued shares or issued shares which have then been reacquired by the Company. Such Shares shall be fully paid and nonassessable. The Company shall not be required to
issue or deliver any Shares prior to fulfillment of all of the following conditions: 

  
 1. 













 (i) The admission of such Shares to listing on all stock exchanges on which the
Company’s Common Stock is then listed; and 
 (ii) The completion of any registration or other qualification of such shares under any
state or federal law or under rulings or regulations of the Securities and Exchange Commission or of any other governmental regulatory body, which the Administrator shall, in its absolute discretion, deem necessary or advisable; and 

(iii) The obtaining of any approval or other clearance from any state or federal governmental agency which the Administrator shall, in its
absolute discretion, determine to be necessary or advisable; and 
 (iv) The receipt by the Company of full payment for such Shares,
including payment of all amounts which, under federal, state or local tax law, the Company (or other employer corporation) is required to withhold upon issuance of such Shares; and 

(v) The lapse of such reasonable period of time following the Issuance Date as the Administrator may from time to time establish for reasons
of administrative convenience. 
 (e) Consideration to the Company. In consideration of the issuance of the Shares by the Company,
Purchaser agrees to render faithful and efficient services to the Company or any Subsidiary. Nothing in the Plan or this Agreement shall confer upon Purchaser any right to (a) continue in the employ of the Company or any Subsidiary or shall
interfere with or restrict in any way the rights of the Company and its Subsidiaries, which are hereby expressly reserved, to discharge Purchaser, if Purchaser is an Employee, or (b) continue to provide services to the Company or any Subsidiary
or shall interfere with or restrict in any way the rights of the Company or its Subsidiaries, which are hereby expressly reserved, to terminate the services of Purchaser, if Purchaser is a Consultant, at any time for any reason whatsoever, with or
without cause, except to the extent expressly provided otherwise in a written agreement between the Company and Purchaser. 
 3.
Repurchase Option. 
 (a) If Purchaser ceases to be a Service Provider for any reason, including for cause, death and Disability, the
Company or its assignee shall have the right and option to purchase from Purchaser, or Purchaser’s personal representative, as the case may be, all of Purchaser’s Unreleased Shares as of the date on which Purchaser ceases to be a Service
Provider at the purchase price paid by Purchaser for such Shares in connection with the Stock Purchase Rights (the “Repurchase Option”). 

(b) The Company may exercise its Repurchase Option by delivering, personally or by registered mail, to Purchaser (or his or her transferee or
legal representative, as the case may be), within ninety (90) days of the date on which Purchaser ceases to be a Service Provider, a notice in writing indicating the Company’s intention to exercise the Repurchase Option and setting forth a
date for closing not later than thirty (30) days from the mailing of such notice. The closing shall take place at the Company’s office. At the closing, the holder of the certificates for the Unreleased Shares being transferred shall
deliver the stock certificate or certificates evidencing the Unreleased Shares, and the Company shall deliver the purchase price therefor. 

  
 2. 













 (c) At its option, the Company may elect to make payment for the Unreleased Shares to a bank
selected by the Company. The Company shall avail itself of this option by a notice in writing to Purchaser stating the name and address of the bank, date of closing, and waiving the closing at the Company’s office. 

(d) If the Company does not elect to exercise the Repurchase Option conferred above by giving the requisite notice within ninety
(90) days following the date on which Purchaser ceases to be a Service Provider, the Repurchase Option shall terminate. 
 (e) One
hundred percent (100%) of the Shares shall initially be subject to the Repurchase Option. The Shares shall be released from the Repurchase Option in accordance with the Vesting Schedule set forth in the Grant Notice until all Shares are released
from the Repurchase Option. Fractional Shares shall be rounded to the nearest whole share. 
 (f) Any Shares which from time to time have
not yet been released from the Company’s Repurchase Option pursuant to Section 3(e) above shall be referred to herein as “Unreleased Shares.” 

4. Transferability of the Shares; Escrow. 

(a) Purchaser hereby authorizes and directs the Secretary of the Company, or such other person designated by the Company from time to time, to
transfer the Unreleased Shares as to which the Repurchase Option has been exercised from Purchaser to the Company. 
 (b) To insure the
availability for delivery of Purchaser’s Unreleased Shares upon repurchase by the Company pursuant to the Repurchase Option under Section 3, Purchaser hereby appoints the Secretary, or any other person designated by the Company from time
to time as escrow agent, as its attorney-in-fact to sell, assign and transfer unto the Company, such Unreleased Shares, if any, repurchased by the Company pursuant to
the Repurchase Option and shall, upon execution of this Agreement, deliver and deposit with the Secretary of the Company, or such other person designated by the Company from time to time, the share certificate(s) representing the Unreleased Shares,
together with the stock assignment duly endorsed in blank, attached hereto as Exhibit B. The Unreleased Shares and stock assignment shall be held by the Secretary, or such other person designated by the Company from time to time, in escrow,
pursuant to the Joint Escrow Instructions of the Company and Purchaser attached as Exhibit C hereto, until the Company exercises its Repurchase Option as provided in Section 3, until such Unreleased Shares are vested,
or until such time as the Repurchase Option no longer is in effect. As a further condition to the Company’s obligations under this Agreement, the spouse of Purchaser, if any, shall execute and deliver to the Company the Consent of Spouse
attached hereto as Exhibit D. Upon vesting of the Unreleased Shares, the escrow agent shall promptly deliver to Purchaser the certificate or certificates representing such Shares in the escrow agent’s possession belonging to Purchaser,
and the escrow agent shall be discharged of all further obligations hereunder; provided, however, that the escrow agent shall nevertheless retain such certificate or certificates as escrow agent if so required pursuant to other restrictions imposed
pursuant to this Agreement. 

  
 3. 













 (c) The Company, or its designee, shall not be liable for any act it may do or omit to do
with respect to holding the Shares in escrow and while acting in good faith and in the exercise of its judgment. 
 (d) Transfer or sale of
the Shares is subject to restrictions on transfer imposed by Section 5 of this Agreement and any applicable state and federal securities laws. Any transferee shall hold such Shares subject to all of the provisions hereof and shall acknowledge
the same by signing a copy of this Agreement. Any transfer or attempted transfer of any of the Shares not in accordance with the terms of this Agreement shall be void and the Company may enforce the terms of this Agreement by stop transfer
instructions or similar actions by the Company and its agents or designees. 
 5. Purchaser’s Rights to Transfer Shares. 

(a) Company’s Right of First Refusal. Before any Shares held by Purchaser or any permitted transferee (each, a
“Holder”) may be sold, pledged, assigned, hypothecated, transferred, or otherwise disposed of (each, a “Transfer”), the Company or its assignee(s) shall have a right of first refusal to purchase the Shares proposed
to be Transferred on the terms and conditions set forth in this Section 5 (the “Right of First Refusal”). 
 (i)
Notice of Proposed Transfer. In the event any Holder desires to Transfer any Shares, the Holder shall deliver to the Company a written notice (the “Notice”) stating: (w) the Holder’s bona fide intention to sell or
otherwise Transfer such Shares; (x) the name of each proposed purchaser or other transferee (“Proposed Transferee”); (y) the number of Shares to be Transferred to each Proposed Transferee; and (z) the bona fide cash
price or other consideration for which the Holder proposes to Transfer the Shares (the “Offered Price”), and the Holder shall offer such Shares at the Offered Price to the Company or its assignee(s). 

(ii) Exercise of Right of First Refusal. Within thirty (30) days after receipt of the Notice, the Company and/or its assignee(s)
may elect in writing to purchase all, but not less than all, of the Shares proposed to be Transferred to any one or more of the Proposed Transferees. The purchase price shall be determined in accordance with Section 5(a)(iii) hereof. 

(iii) Purchase Price. The purchase price (“Repurchase Price”) for the Shares repurchased under this Section 5
shall be the Offered Price. If the Offered Price includes consideration other than cash, the cash equivalent value of the non-cash consideration shall be determined by the Board in good faith. 

(iv) Payment. Payment of the Repurchase Price shall be made, at the option of the Company or its assignee(s), in cash (by check), by
cancellation of all or a portion of any outstanding indebtedness of the Holder to the Company (or, in the case of repurchase by an assignee, to the assignee), or by any combination thereof within thirty (30) days after receipt of the Notice or
in the manner and at the times mutually agreed to by the Company and the Holder. 

  
 4. 













 (v) Holder’s Right to Transfer. If all of the Shares proposed in the Notice to
be Transferred are not purchased by the Company and/or its assignee(s) as provided in this Section 5, then the Holder may sell or otherwise Transfer such Shares to that Proposed Transferee at the Offered Price or at a higher price, provided
that such sale or other Transfer is consummated within one hundred twenty (120) days after the date of the Notice and provided further that any such sale or other Transfer is effected in accordance with any applicable securities laws and the
Proposed Transferee agrees in writing that the provisions of this Section 5 and the Restricted Stock Purchase Agreement, if applicable, shall continue to apply to the Shares in the hands of such Proposed Transferee. If the Shares described in
the Notice are not Transferred to the Proposed Transferee within such 120-day period, a new Notice shall be given to the Company, and the Company and/or its assignees shall again be offered the Right of First
Refusal as provided herein before any Shares held by the Holder may be sold or otherwise Transferred. 
 (b) Exception for Certain Family
Transfers. Anything to the contrary contained in this Section 5 notwithstanding, the Transfer of any or all of the Shares during the Purchaser’s lifetime or upon the Purchaser’s death by will or intestacy to the Purchaser’s
Immediate Family or a trust for the benefit of the Purchaser’s Immediate Family shall be exempt from the Right of First Refusal. As used herein, “Immediate Family” shall mean spouse, lineal descendant or antecedent, father,
mother, brother or sister or stepchild (whether or not adopted). In such case, the transferee or other recipient shall receive and hold the Shares so Transferred subject to the provisions of this Agreement, and there shall be no further Transfer of
such Shares except in accordance with the terms of this Section 5. 
 (c) Termination of Right of First Refusal. The Right of
First Refusal shall terminate as to all Shares upon a sale of Common Stock of the Company to the general public pursuant to a registration statement filed with and declared effective by the Securities and Exchange Commission under the Securities Act
of 1933, as amended (a “Public Offering”). 
 6. Ownership, Voting Rights, Duties. This Agreement shall not affect
in any way the ownership, voting rights or other rights or duties of Purchaser, except as specifically provided herein. 
 7. Adjustment
for Stock Split. All references to the number of Shares and the purchase price of the Shares in this Agreement shall be appropriately adjusted to reflect any stock split, stock dividend or other change in the Shares which may be made by the
Company after the date of this Agreement. 
 8. Notices. Notices required hereunder shall be given in person or by registered mail to
the address of Purchaser shown on the records of the Company, and to the Company at its principal executive office. 

  
 5. 













 9. Survival of Terms. This Agreement shall apply to and bind Purchaser and the
Company and their respective permitted assignees and transferees, heirs, legatees, executors, administrators and legal successors. 
 10.
Section 83(b) Election for Unreleased Shares. Purchaser hereby acknowledges that he or she has been informed that, with respect to the purchase of Unreleased Shares, that unless an election is filed by Purchaser with the Internal Revenue
Service and, if necessary, the proper state taxing authorities, within thirty (30) days of the purchase of the Shares, electing pursuant to Section 83(b) of the Code (and similar state tax provisions if applicable) to
be taxed currently on any difference between the purchase price of the Shares and their Fair Market Value on the date of purchase, there will be a recognition of taxable income to the Purchaser, measured by the excess, if any, of the fair market
value of the Shares, at the time the Company’s Repurchase Option lapses over the purchase price for the Shares. Purchaser represents that Purchaser has consulted any tax consultant(s) Purchaser deems advisable in connection with the purchase of
the Shares or the filing of the Election under Section 83(b) and similar tax provisions. 
 PURCHASER ACKNOWLEDGES THAT IT IS
PURCHASER’S SOLE RESPONSIBILITY AND NOT THE COMPANY’S TO FILE TIMELY THE ELECTION UNDER SECTION 83(b), EVEN IF PURCHASER REQUESTS THE COMPANY OR ITS REPRESENTATIVE TO MAKE THIS FILING ON PURCHASER’S BEHALF. 

11. Representations. Purchaser has reviewed with his or her own tax advisors the federal, state, local and foreign tax consequences of
this investment and the transactions contemplated by this Agreement. Purchaser is relying solely on such advisors and not on any statements or representations of the Company or any of its agents. Purchaser understands that Purchaser (and not the
Company) shall be responsible for his or her own tax liability that may arise as a result of this investment or the transactions contemplated by this Agreement. 

12. Restrictive Legends and Stop-Transfer Orders. 

(a) Any share certificate(s) evidencing the Shares issued hereunder shall be endorsed with the following legends and any other legends that
may be required by state or federal securities laws: 
 THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO A RIGHT OF REPURCHASE IN
FAVOR OF IMAGO BIOSCIENCES, INC. (THE “COMPANY”) AND MAY BE TRANSFERRED ONLY IN ACCORDANCE WITH THE TERMS OF A RESTRICTED STOCK PURCHASE AGREEMENT BETWEEN THE COMPANY AND THE STOCKHOLDER, A COPY OF WHICH IS ON FILE WITH THE
SECRETARY OF THE COMPANY. 

  
 6. 













 THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER THE SECURITIES
ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND HAVE BEEN ACQUIRED FOR INVESTMENT AND NOT WITH A VIEW TO, OR IN CONNECTION WITH, THE SALE OR DISTRIBUTION THEREOF. NO SUCH SALE OR DISTRIBUTION MAY BE EFFECTED WITHOUT AN EFFECTIVE
REGISTRATION STATEMENT RELATED THERETO OR AN OPINION OF COUNSEL IN A FORM SATISFACTORY TO THE COMPANY THAT SUCH REGISTRATION IS NOT REQUIRED UNDER THE SECURITIES ACT. 

(b) Purchaser agrees that, in order to ensure compliance with the restrictions referred to herein, the Company may issue appropriate
“stop transfer” instructions to its transfer agent, if any, and that, if the Company transfers its own securities, it may make appropriate notations to the same effect in its own records. 

(c) The Company shall not be required: (i) to transfer on its books any Shares that have been sold or otherwise transferred in violation
of any of the provisions of this Agreement, or (ii) to treat as owner of such Shares or to accord the right to vote or pay dividends to any purchaser or other transferee to whom such Shares shall have been so transferred. 

13. Titles. Titles are provided herein for convenience only and are not to serve as a basis for interpretation or construction of this
Agreement. 
 14. Conformity to Securities Laws. Purchaser acknowledges that the Plan is intended to conform to the extent necessary
with all provisions of the Securities Act and the Exchange Act and any and all regulations and rules promulgated by the Securities and Exchange Commission thereunder, and state securities laws and regulations. Notwithstanding anything herein to the
contrary, the Plan shall be administered, and the Shares are to be issued, only in such a manner as to conform to such laws, rules and regulations. To the extent permitted by applicable law, the Plan and this Agreement shall be deemed amended to the
extent necessary to conform to such laws, rules and regulations. Purchaser shall not transfer in any manner the Shares issued pursuant to this Agreement, without regard to whether such Shares are no longer subject to the Repurchase Option, unless
(i) the transfer is pursuant to an effective registration statement under the Securities Act, or the rules and regulations in effect thereunder or (ii) counsel for the Company shall have reasonably concluded that no such registration is
required because of the availability of an exemption from registration under the Securities Act. 
 15. Market Standoff Agreement.
Purchaser hereby agrees that if so requested by the Company or any representative of the underwriters (the “Managing Underwriter”) in connection with any registration of the offering of any securities of the Company under the
Securities Act, Purchaser shall not sell or otherwise transfer any Shares or other securities of the Company during the 180-day period (or such longer period as may be requested in writing by the Managing
Underwriter and agreed to in writing by the Company) (the “Market Standoff Period”) following the effective date of a registration statement of the Company filed under the Securities Act; provided, however, that such
restriction shall apply only to the first registration statement of the Company to become effective under the Securities Act that includes securities to be sold on behalf of the Company to the public in an underwritten public offering under the
Securities Act. The Company may impose stop-transfer instructions with respect to securities subject to the foregoing restrictions 

  
 7. 













 
until the end of such Market Standoff Period and these restrictions shall be binding on any transferee of such Shares. Notwithstanding the foregoing, the
180-day period may be extended for up to such number of additional days as is deemed necessary by the Company or the Managing Underwriter to continue coverage by research analysts in accordance with NASD Rule
2711 or any successor rule. 
 16. Further Instruments. Purchaser hereby agrees to execute such further instruments and to take such
further action as may be reasonably necessary to carry out the purposes and intent of this Agreement including, without limitation, the Investment Representation Statement, in the form attached to the Grant Notice as Exhibit E. 

17. Governing Law; Severability. This Agreement shall be governed by and construed in accordance with the laws of the State of
California excluding that body of law pertaining to conflicts of law. Should any provision of this Agreement be determined by a court of law to be illegal or unenforceable, the other provisions shall nevertheless remain effective and shall remain
enforceable. 
 18. Rules Particular To Specific Countries. 

(a) Generally. Generally. Purchaser shall, if required by the Administrator, enter into an election with the Company or a Subsidiary
(in a form approved by the Company) under which any liability to the Company’s (or a Subsidiary’s) Tax Liability, including, but not limited to, National Insurance Contributions (“NICs”) and Fringe Benefit Tax
(“FBT”), is transferred to and met by Purchaser. For purposes of this Section 18, Tax Liability shall mean any and all liability under applicable non-U.S. laws, rules or regulations from
any income tax, the Company’s (or a Subsidiary’s) NICs, FBT or similar liability and the Optionee’s NICs, FBT or similar liability under non-U.S. laws that are attributable to: (A) the
grant of, or any other benefit derived by the Purchaser from the Shares; (B) the acquisition by Purchaser of the Shares; or (C) the disposal of any Shares acquired. 

(b) Tax Indemnity. Purchaser shall indemnify and keep indemnified the Company and any of its Subsidiaries from and against any Tax
Liability. 
 *     *     *     *     * 

  
 8. 













 EXHIBIT B 

ASSIGNMENT SEPARATE FROM CERTIFICATE 

FOR VALUE RECEIVED I, «Purchaser_Name», hereby sell, assign and transfer unto
                            
                 (__________) shares of the Common Stock of Imago BioSciences, Inc. registered in my name on the books of said
corporation represented by Certificate No. _____ herewith and do hereby irrevocably constitute and appoint
                                     
    to transfer the said stock on the books of the within named corporation with full power of substitution in the premises. 

This Assignment Separate from Certificate may be used only in accordance with the Restricted Stock Purchase Agreement between Imago
BioSciences, Inc. and the undersigned dated «Date_of_Grant». 
  

			
	 Dated: _______________, ________
	  	

 
			
		
	Signature:	 	 
		 	 «PURCHASER_NAME»



 INSTRUCTIONS: Please do not fill in any blanks other than the signature line. The purpose of this assignment
is to enable the Company to exercise the Repurchase Option, as set forth in the Restricted Stock Purchase Agreement, without requiring additional signatures on the part of Purchaser. 












 EXHIBIT C 

JOINT ESCROW INSTRUCTIONS 

_______________, 2014 
 Secretary 

Imago BioSciences, Inc. 
 ### 

### 
 As Escrow Agent for both Imago BioSciences,
Inc. (the “Company”) and the undersigned purchaser of stock of the Company (the “Purchaser”), you are hereby authorized and directed to hold the documents delivered to you pursuant to the terms of that certain
Restricted Stock Purchase Agreement (“Agreement”) between the Company and the undersigned, in accordance with the following instructions: 

1. In the event the Company or any entitled parties (referred to collectively for convenience herein as the “Company”)
exercises the Company’s Repurchase Option set forth in the Agreement, the Company shall give to Purchaser and you a written notice specifying the number of shares of stock to be purchased, the purchase price, and the time for a closing
hereunder at the principal office of the Company. Purchaser and the Company hereby irrevocably authorize and direct you to close the transaction contemplated by such notice in accordance with the terms of said notice. 

2. At the closing, you are directed (a) to date the stock assignments necessary for the transfer in question, (b) to fill in the
number of shares being transferred, and (c) to deliver the same, together with the certificate evidencing the shares of stock to be transferred, to the Company or its assignee, against the simultaneous delivery to you of the purchase price (by
cash, a check, or a combination thereof) for the number of shares of stock being purchased pursuant to the exercise of the Company’s Repurchase Option. 

3. Purchaser irrevocably authorizes the Company to deposit with you any certificates evidencing shares of stock to be held by you hereunder
and any additions and substitutions to said shares as defined in the Agreement. Purchaser does hereby irrevocably constitute and appoint you as Purchaser’s
attorney-in-fact and agent for the term of this escrow to execute, with respect to such securities, all documents necessary or appropriate to make such securities
negotiable and to complete any transaction herein contemplated, including but not limited to the filing with any applicable state blue sky authority of any required applications for consent to, or notice of transfer of, the securities. Subject to
the provisions of this paragraph 3 and to the terms of the Agreement, Purchaser shall exercise all rights and privileges of a stockholder of the Company while the stock is held by you. 












 4. Upon written request of Purchaser, but no more than once per calendar year, unless the
Company’s Repurchase Option has been exercised, you will deliver to Purchaser a certificate or certificates representing the number of shares of stock as are not then subject to the Company’s Repurchase Option. Within one hundred twenty
(120) days after Purchaser ceases to be a Service Provider, you will deliver to Purchaser a certificate or certificates representing the aggregate number of shares held or issued pursuant to the Agreement and not purchased by the Company or any
other entitled parties pursuant to exercise of the Company’s Repurchase Option. 
 5. If at the time of termination of this escrow you
should have in your possession any documents, securities, or other property belonging to Purchaser, you shall deliver all of the same to Purchaser and shall be discharged of all further obligations hereunder. 

6. Your duties hereunder may be altered, amended, modified or revoked only by a writing signed by all of the parties hereto. 

7. You shall be obligated only for the performance of such duties as are specifically set forth herein and may rely and shall be protected in
relying or refraining from acting on any instrument reasonably believed by you to be genuine and to have been signed or presented by the proper party or parties. You shall not be personally liable for any act you may do or omit to do hereunder as
Escrow Agent or as attorney-in-fact for Purchaser while acting in good faith, and any act done or omitted by you pursuant to the advice of your own attorneys shall be
conclusive evidence of such good faith. 
 8. You are hereby expressly authorized to disregard any and all warnings given by any of the
parties hereto or by any other person or corporation, excepting only orders or process of courts of law and are hereby expressly authorized to comply with and obey orders, judgments or decrees of any court. In case you obey or comply with any such
order, judgment or decree, you shall not be liable to any of the parties hereto or to any other person, firm or corporation by reason of such compliance, notwithstanding any such order, judgment or decree being subsequently reversed, modified,
annulled, set aside, vacated or found to have been entered without jurisdiction. 
 9. You shall not be liable in any respect on account of
the identity, authorities or rights of the parties executing or delivering or purporting to execute or deliver the Agreement or any documents or papers deposited or called for hereunder. 

10. You shall not be liable for the expiration of any rights under any applicable state, federal or local statute of limitations or similar
statute or regulation with respect to these Joint Escrow Instructions or any documents deposited with you. 
 11. You shall be entitled to
employ such legal counsel and other experts as you may deem necessary properly to advise you in connection with your obligations hereunder, may rely upon the advice of such counsel, and may pay such counsel reasonable compensation therefor. 

12. Your responsibilities as Escrow Agent hereunder shall terminate if you shall cease to be an officer or agent of the Company or if you
shall resign by written notice to each party. In the event of any such termination, the Company shall appoint a successor Escrow Agent. 

  
 2 













 13. If you reasonably require other or further instruments in connection with these Joint
Escrow Instructions or obligations in respect hereto, the necessary parties hereto shall join in furnishing such instruments. 
 14. It is
understood and agreed that should any dispute arise with respect to the delivery and/or ownership or right of possession of the securities held by you hereunder, you are authorized and directed to retain in your possession without liability to
anyone all or any part of said securities until such disputes shall have been settled either by mutual written agreement of the parties concerned or by a final order, decree or judgment of a court of competent jurisdiction after the time for appeal
has expired and no appeal has been perfected, but you shall be under no duty whatsoever to institute or defend any such proceedings. 
 15.
Any notice required or permitted hereunder shall be given in writing and shall be deemed effectively given upon personal delivery or upon deposit in the United States Post Office, by registered or certified mail with postage and fees prepaid,
addressed to each of the other parties thereunto entitled at such addresses as a party may designate by written notice to each of the other parties hereto. 

16. By signing these Joint Escrow Instructions, you become a party hereto only for the purpose of said Joint Escrow Instructions; you do not
become a party to the Agreement. 
 17. This instrument shall be binding upon and inure to the benefit of the parties hereto, and their
respective successors and permitted assigns. 
 18. These Joint Escrow Instructions shall be governed by, and construed and enforced in
accordance with, the laws of the State of California, excluding that body of law pertaining to conflicts of law. 
 (Signature Page Follows)


  
 3 













 IN WITNESS WHEREOF, these Joint Escrow Instructions shall be effective as of the date first
set forth above. 
  

			
	IMAGO BIOSCIENCES, INC.
		
	By:	 	  

		 	Hugh Y. Rienhoff, Jr.
		 	President and Chief Executive Officer
	
	PURCHASER
		
	By:	 	  

	
	Address:
	
	ESCROW AGENT
		
	By:	 	  

		 	Benjamin A. Potter, Secretary


 Signature Page to Imago BioSciences, Inc. Joint Escrow Instructions 












 EXHIBIT D 

CONSENT OF SPOUSE 
 I,
____________________, spouse of «Purchaser_Name», have read and approve the Restricted Stock Purchase Agreement dated «Date_of_Grant», between my spouse and Imago BioSciences, Inc. In consideration of granting of the right to
my spouse to purchase shares of Imago BioSciences, Inc. set forth in the Restricted Stock Purchase Agreement, I hereby appoint my spouse as my attorney-in-fact in
respect to the exercise of any rights under the Agreement and agree to be bound by the provisions of the Restricted Stock Purchase Agreement insofar as I may have any rights in said Restricted Stock Purchase Agreement or any shares issued pursuant
thereto under the community property laws or similar laws relating to marital property in effect in the state of our residence as of the date of the signing of the foregoing Restricted Stock Purchase Agreement. 

Dated: _______________, ______ 
  

	
	  

	Signature of Spouse














 EXHIBIT E 

INVESTMENT REPRESENTATION STATEMENT 
  

					
	PURCHASER	 	:	  	
			
	COMPANY	 	:	  	Imago BioSciences, Inc.
			
	SECURITY	 	:	  	Common Stock
			
	AMOUNT	 	:	  	
			
	DATE	 	:	  	

 In connection with the purchase of the above-listed shares of Common Stock (the “Securities”)
of Imago BioSciences, Inc., a Delaware corporation (the “Company”), the undersigned (“Purchaser”) represents to the Company the following: 

1. Purchaser is aware of the Company’s business affairs and financial condition and has acquired sufficient information about the Company
to reach an informed and knowledgeable decision to acquire the Securities. Purchaser is acquiring these Securities for investment for Purchaser’s own account only and not with a view to, or for resale in connection with, any
“distribution” thereof within the meaning of the Securities Act of 1933, as amended (the “Securities Act”). 
 2.
Purchaser acknowledges and understands that the Securities constitute “restricted securities” under the Securities Act and have not been registered under the Securities Act in reliance upon a specific exemption therefrom, which exemption
depends upon, among other things, the bona fide nature of Purchaser’s investment intent as expressed herein. Purchaser understands that, in the view of the Securities and Exchange Commission, the statutory basis for such exemption may be
unavailable if Purchaser’s representation was predicated solely upon a present intention to hold these Securities for the minimum capital gains period specified under tax statutes, for a deferred sale, for or until an increase or decrease in
the market price of the Securities, or for a period of one year or any other fixed period in the future. Purchaser further understands that the Securities must be held indefinitely unless they are subsequently registered under the Securities Act or
an exemption from such registration is available. Purchaser further acknowledges and understands that the Company is under no obligation to register the Securities. Purchaser understands that the certificate evidencing the Securities will be
imprinted with a legend which prohibits the transfer of the Securities unless they are registered or such registration is not required in the opinion of counsel satisfactory to the Company and any other legend required under applicable state
securities laws or agreements. 
 3. Purchaser is familiar with the provisions of Rule 701 and Rule 144, each promulgated under
the Securities Act, which, in substance, permit limited public resale of “restricted securities” acquired, directly or indirectly from the issuer thereof, in a non-public offering subject to the
satisfaction of certain conditions. Rule 701 provides that if the issuer qualifies under Rule 701 at the time of the grant of the Stock Purchase Right to the Purchaser, 












 
the exercise will be exempt from registration under the Securities Act. In the event the Company becomes subject to the reporting requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, as amended (the “Exchange Act”), ninety (90) days thereafter (or such longer period as any market stand-off agreement may require) the Securities exempt under
Rule 701 may under present law be resold, subject to the satisfaction of certain of the conditions specified by Rule 144, including: (1) the resale being made through a broker in an unsolicited “broker’s transaction” or
in transactions directly with a market maker (as said term is defined under the Exchange Act); and, in the case of an affiliate, (2) the availability of certain public information about the Company, (3) the amount of Securities being
sold during any three (3) month period not exceeding the limitations specified in Rule 144(e), and (4) the timely filing of a Form 144, if applicable. 

In the event that the Company does not qualify under Rule 701 at the time of grant of the Stock Purchase Right, then the Securities may
be resold in certain limited circumstances subject to the provisions of Rule 144, which requires the resale to occur not less than six months, or, in the event the Company is not subject to the reporting requirements of Section 13 or
15(d) of the Securities Exchange Act of 1934, not less than one year, after the later of the date the Securities were sold by the Company or the date the Securities were sold by an affiliate of the Company, within the meaning of Rule 144; and,
in the case of acquisition of the Securities by an affiliate, the satisfaction of the conditions set forth in sections (1), (2), (3) and (4) of the paragraph immediately above or, in the case of a
non-affiliate who subsequently holds the Securities less than one year, the satisfaction of the conditions set forth in section (2) of the paragraph immediately above.. 

4. Purchaser further understands that in the event all of the applicable requirements of Rule 701 or 144 are not satisfied, registration
under the Securities Act, compliance with Regulation A, or some other registration exemption will be required; and that, notwithstanding the fact that Rules 144 and 701 are not exclusive, the Staff of the Securities and Exchange Commission has
expressed its opinion that persons proposing to sell private placement securities other than in a registered offering and otherwise than pursuant to Rules 144 or 701 will have a substantial burden of proof in establishing that an exemption from
registration is available for such offers or sales, and that such persons and their respective brokers who participate in such transactions do so at their own risk. Purchaser understands that no assurances can be given that any such other
registration exemption will be available in such event. 
  

	
	Signature of Purchaser:
	
	   



 Date: _______________________, ____ 

  
 2 













 FORM OF 83(B) ELECTION AND INSTRUCTIONS 

These instructions are provided to assist you if you choose to make an election under Section 83(b) of the Internal Revenue Code, as
amended, with respect to the shares of common stock of Imago BioSciences, Inc. transferred to you. Please consult with your personal tax advisor as to whether an election of this nature will be in your best interests in light of your personal tax
situation. 
 The executed original of the Section 83(b) election must be filed with the Internal Revenue Service not later than 30
days after the date the shares were transferred to you. PLEASE NOTE: There is no remedy for failure to file on time. The steps outlined below should be followed to ensure the election is mailed and filed correctly and in a timely manner. ALSO,
PLEASE NOTE: If you make the Section 83(b) election, the election is irrevocable. 
 Complete Section 83(b) election form
(attached as Attachment 1) and make four (4) copies of the signed election form. (Your spouse, if any, should sign the Section 83(b) election form as well.) 

Prepare the cover letter to the Internal Revenue Service (sample letter attached as Attachment 2). 

Send the cover letter with the originally executed Section 83(b) election form and one (1) copy via certified mail, return receipt
requested to the Internal Revenue Service at the address of the Internal Revenue Service where you file your personal tax returns. We suggest that you have the package date-stamped at the post office. The post office will provide you with a
certified receipt that includes a dated postmark. Enclose a self-addressed, stamped envelope so that the Internal Revenue Service may return a date-stamped copy to you. However, your postmarked receipt is your proof of having timely filed the
Section 83(b) election if you do not receive confirmation from the Internal Revenue Service. 
 One (1) copy must be sent to Imago
BioSciences, Inc. for its records and one (1) copy must be attached to your federal income tax return for the applicable calendar year. 

Retain the Internal Revenue Service file stamped copy (when returned) for your records. 

Please consult your personal tax advisor for the address of the office of the Internal Revenue Service to which you should mail your election
form. 












 ATTACHMENT 1 

ELECTION UNDER INTERNAL REVENUE CODE SECTION 83(B) 

The undersigned taxpayer hereby elects, pursuant to Section 83(b) of the Internal Revenue Code of 1986, as amended, to include in
taxpayer’s gross income for the current taxable year the amount of any compensation taxable to taxpayer in connection with taxpayer’s receipt of shares (the “Shares”) of Common Stock of Imago BioSciences, Inc., a Delaware
corporation (the “Company”). 
 The name, address and taxpayer identification number of the undersigned taxpayer are: 

SSN: 
 The name, address and
taxpayer identification number of the Taxpayer’s spouse are (complete if applicable): 
 SSN: 

Description of the property with respect to which the election is being made: 

(                ) shares of Common Stock of the Company. 

The date on which the property was transferred was                . The
taxable year to which this election relates is calendar year 2014. 
 Nature of restrictions to which the property is subject: 

The Shares are subject to repurchase by the Company or its assignee upon the occurrence of certain events. This repurchase right lapses based
upon the continued performance of services by the taxpayer over time. 
 The fair market value at the time of transfer (determined without regard to any
lapse restrictions, as defined in Treasury Regulation Section 1.83-3(i)) of the Shares was                per Share. 

The amount paid by the taxpayer for Shares was                per share. 

A copy of this statement has been furnished to the Company. 
  

			
	 Dated: March __, 2014
	  	 Taxpayer Signature ___________________________


 The undersigned spouse of Taxpayer joins in this election. (Complete if applicable). 

 

			
	 Dated: March __, 2014
	  	 Spouse’s Signature ________________________














 ATTACHMENT 2 

SAMPLE COVER LETTER TO INTERNAL REVENUE SERVICE 

__________________, ____ 
 VIA
CERTIFIED MAIL 
 RETURN RECEIPT REQUESTED 

Internal Revenue Service 
 [Address where taxpayer files returns]

  

	Re:	 Election under Section 83(b) of the Internal Revenue Code of 1986 



Taxpayer: 
 Taxpayer’s Social
Security Number: 
 Taxpayer’s Spouse: 

Taxpayer’s Spouse’s Social Security Number: 

Ladies and Gentlemen: 
 Enclosed please find an
original and one copy of an Election under Section 83(b) of the Internal Revenue Code of 1986, as amended, being made by the taxpayer referenced above. Please acknowledge receipt of the enclosed materials by stamping the enclosed copy of the
Election and returning it to me in the self-addressed stamped envelope provided herewith. 
  

	
	Very truly yours,
	
	  



 Enclosures 
  

	cc:	 Imago BioSciences, Inc.