EX-10.16


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 Exhibit 10.16 

AMBRX BIOPHARMA INC. 

2021 EQUITY INCENTIVE PLAN 

ADOPTED BY THE BOARD OF DIRECTORS:
JUNE 3, 2021 
 APPROVED BY THE SHAREHOLDERS:
JUNE 9, 2021 









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 TABLE OF CONTENTS 

 

							
	 	  	 	  	Page	 
			
	 1.
	  	GENERAL.	  	 	1	 
			
	 2.
	  	SHARES SUBJECT TO THE PLAN.	  	 	1	 
			
	 3.
	  	ELIGIBILITY AND LIMITATIONS.	  	 	2	 
			
	 4.
	  	OPTIONS AND SHARE APPRECIATION RIGHTS.	  	 	3	 
			
	 5.
	  	AWARDS OTHER THAN OPTIONS AND SHARE APPRECIATION RIGHTS.	  	 	7	 
			
	 6.
	  	ADJUSTMENTS UPON CHANGES IN ORDINARY SHARES; OTHER CORPORATE EVENTS.	  	 	9	 
			
	 7.
	  	ADMINISTRATION.	  	 	11	 
			
	 8.
	  	TAX WITHHOLDING	  	 	14	 
			
	 9.
	  	MISCELLANEOUS.	  	 	15	 
			
	 10.
	  	COVENANTS OF THE COMPANY.	  	 	18	 
			
	 11.
	  	ADDITIONAL RULES FOR AWARDS SUBJECT TO SECTION 409A.	  	 	18	 
			
	 12.
	  	SEVERABILITY.	  	 	22	 
			
	 13.
	  	TERMINATION OF THE PLAN.	  	 	22	 
			
	 14.
	  	DEFINITIONS.	  	 	23	 


  
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	1.	 GENERAL. 



(a) Successor to and Continuation of Prior Plan. The Plan is the successor to and continuation of the Prior Plan. As of the
Effective Date, (i) no additional awards may be granted under the Prior Plan; (ii) the Prior Plan’s Available Reserve plus any Returning Shares will become available for issuance pursuant to Awards granted under this Plan; and
(iii) all outstanding awards granted under the Prior Plan will remain subject to the terms of the Prior Plan (except to the extent such outstanding awards result in Returning Shares that become available for issuance pursuant to Awards granted
under this Plan). All Awards granted under this Plan will be subject to the terms of this Plan. 
 (b) Plan Purpose. The
Company, by means of the Plan, seeks to secure and retain the services of Employees, Directors and Consultants, to provide incentives for such persons to exert maximum efforts for the success of the Company and any Affiliate and to provide a means
by which such persons may be given an opportunity to benefit from increases in value of the Ordinary Shares through the granting of Awards. 

(c) Available Awards. The Plan provides for the grant of the following Awards: (i) Incentive Share Options;
(ii) Nonstatutory Share Options; (iii) SARs; (iv) Restricted Share Awards; (v) RSU Awards; (vi) Performance Awards; and (vii) Other Awards. 

(d) Adoption Date; Effective Date. The Plan will come into existence on the Adoption Date, but no Award may be granted prior to
the Effective Date. 
  

	2.	 SHARES SUBJECT TO THE PLAN.



 (a) Share Reserve. Subject to adjustment in accordance with Section 2(c) and any adjustments as
necessary to implement any Capitalization Adjustments, the aggregate number of Ordinary Shares that may be issued pursuant to Awards will not exceed 56,094,909 shares, which is the sum of: (i) 12,000,000 new shares, plus (ii) the number of
Ordinary Shares (not to exceed 44,094,909 Ordinary Shares) which represents (A) the Prior Plan’s Available Reserve plus (B) the number of Returning Shares, if any, as such shares become available from time to time. In addition,
subject to any adjustments as necessary to implement any Capitalization Adjustments, such aggregate number of Ordinary Shares will automatically increase on January 1 of each year for a period of ten years commencing on January 1, 2022 and
ending on (and including) January 1, 2031, in an amount equal to five percent (5%) of the total number of Ordinary Shares outstanding on December 31 of the preceding year; provided, however that the Board may act prior to January 1st of a given year to provide that the increase for such year will be a lesser number of Ordinary Shares. 

(b) Aggregate Incentive Share Option Limit. Notwithstanding anything to the contrary in Section 2(a) and subject to any
adjustments as necessary to implement any Capitalization Adjustments, the aggregate maximum number of Ordinary Shares that may be issued pursuant to the exercise of Incentive Share Options is 200,000,000 shares. 

  
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 (c) Share Reserve Operation. 

(i) Limit Applies to Ordinary Shares Issued Pursuant to Awards. For clarity, the Share Reserve is a limit on the number of
Ordinary Shares that may be issued pursuant to Awards and does not limit the granting of Awards, except that the Company will keep available at all times the number of Ordinary Shares reasonably required to satisfy its obligations to issue shares
pursuant to such Awards. Shares may be issued in connection with a merger or acquisition as permitted by, as applicable, Nasdaq Listing Rule 5635(c), NYSE Listed Company Manual Section 303A.08, NYSE American Company Guide Section 711 or
other applicable rule, and such issuance will not reduce the number of shares available for issuance under the Plan. 
 (ii)
Actions that Do Not Constitute Issuance of Ordinary Shares and Do Not Reduce Share Reserve. The following actions do not result in an issuance of shares under the Plan and accordingly do not reduce the number of shares subject to the Share
Reserve and available for issuance under the Plan: (1) the expiration or termination of any portion of an Award without the shares covered by such portion of the Award having been issued; (2) the settlement of any portion of an Award in
cash (i.e., the Participant receives cash rather than Ordinary Shares); (3) the withholding of shares that would otherwise be issued by the Company to satisfy the exercise, strike or purchase price of an Award; or (4) the withholding of
shares that would otherwise be issued by the Company to satisfy a tax withholding obligation in connection with an Award. 
 (iii)
Reversion of Previously Issued Ordinary Shares to Share Reserve. The following Ordinary Shares previously issued pursuant to an Award and accordingly initially deducted from the Share Reserve will be added back to the Share Reserve and again
become available for issuance under the Plan: (1) any shares that are forfeited back to or repurchased by the Company because of a failure to meet a contingency or condition required for the vesting of such shares; (2) any shares that are
reacquired by the Company to satisfy the exercise, strike or purchase price of an Award; and (3) any shares that are reacquired by the Company to satisfy a tax withholding obligation in connection with an Award. 

 

	3.	 ELIGIBILITY AND LIMITATIONS. 



(a) Eligible Award Recipients. Subject to the terms of the Plan, Employees, Directors and Consultants are eligible to receive
Awards. 
 (b) Specific Award Limitations. 

(i) Limitations on Incentive Share Option Recipients. Incentive Share Options may be granted only to Employees of the Company or
a “parent corporation” or “subsidiary corporation” thereof (as such terms are defined in Sections 424(e) and (f) of the Code). 

(ii) Incentive Share Option $100,000 Limitation. To the extent that the aggregate Fair Market Value (determined at the time of
grant) of Ordinary Shares with respect to which Incentive Share Options are exercisable for the first time by any Optionholder during any calendar year (under all plans of the Company and any Affiliates) exceeds $100,000 (or


  
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such other limit established in the Code) or otherwise does not comply with the rules governing Incentive Share Options, the Options or portions thereof that exceed such limit (according to the
order in which they were granted) or otherwise do not comply with such rules will be treated as Nonstatutory Share Options, notwithstanding any contrary provision of the applicable Option Agreement(s). 

(iii) Limitations on Incentive Share Options Granted to Ten Percent Shareholders. A Ten Percent Shareholder may not be granted
an Incentive Share Option unless (i) the exercise price of such Option is at least 110% of the Fair Market Value on the date of grant of such Option and (ii) the Option is not exercisable after the expiration of five years from the date of
grant of such Option. 
 (iv) Limitations on Nonstatutory Share Options and SARs. Nonstatutory Share Options and SARs may not
be granted to Employees, Directors and Consultants who are providing Continuous Service only to any “parent” of the Company (as such term is defined in Rule 405) unless the stock underlying such Awards is treated as “service
recipient stock” under Section 409A because the Awards are granted pursuant to a corporate transaction (such as a spin off transaction) or unless such Awards otherwise comply with the distribution requirements of Section 409A. 

(c) Aggregate Incentive Share Option Limit. The aggregate maximum number of Ordinary Shares that may be issued pursuant to the
exercise of Incentive Share Options is the number of shares specified in Section 2(b). 
 (d)
Non-Employee Director Compensation Limit. The aggregate value of all compensation granted or paid, as applicable, to any individual for service as a Non-Employee
Director with respect to any calendar year, including Awards granted and cash fees paid by the Company to such Non-Employee Director, will not exceed (i) $750,000 in total value or (ii) in the event such Non-Employee Director is first appointed or elected to the Board during such calendar year, $1,000,000 in total value, in each case calculating the value of any equity awards based on the grant date fair value of
such equity awards for financial reporting purposes. The limitations in this Section 3(d) shall apply commencing with the first calendar year that begins following the Effective Date. 

 

	4.	 OPTIONS AND SHARE APPRECIATION
RIGHTS. 


 Each Option and SAR will have such terms and conditions as determined by the Board. Each
Option will be designated in writing as an Incentive Share Option or Nonstatutory Share Option at the time of grant; provided, however, that if an Option is not so designated, then such Option will be a Nonstatutory Share Option, and the shares
purchased upon exercise of each type of Option will be separately accounted for. Each SAR will be denominated in Ordinary Shares equivalents. The terms and conditions of separate Options and SARs need not be identical; provided, however, that each
Option Agreement and SAR Agreement will conform (through incorporation of provisions hereof by reference in the Award Agreement or otherwise) to the substance of each of the following provisions: 

(a) Term. Subject to Section 3(b) regarding Ten Percent Shareholders, no Option or SAR will be exercisable after the
expiration of ten years from the date of grant of such Award or such shorter period specified in the Award Agreement. 

  
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 (b) Exercise or Strike Price. Subject to Section 3(b) regarding Ten
Percent Shareholders, the exercise or strike price of each Option or SAR will not be less than 100% of the Fair Market Value on the date of grant of such Award. Notwithstanding the foregoing, an Option or SAR may be granted with an exercise or
strike price lower than 100% of the Fair Market Value on the date of grant of such Award if such Award is granted pursuant to an assumption of or substitution for another option or stock appreciation right pursuant to a Corporate Transaction and in
a manner consistent with the provisions of Sections 409A and, if applicable, 424(a) of the Code. 
 (c) Exercise Procedure and
Payment of Exercise Price for Options. In order to exercise an Option, the Participant must provide notice of exercise to the Plan Administrator in accordance with the procedures specified in the Option Agreement or otherwise provided by the
Company. The Board has the authority to grant Options that do not permit all of the following methods of payment (or otherwise restrict the ability to use certain methods) and to grant Options that require the consent of the Company to utilize a
particular method of payment. The exercise price of an Option may be paid, to the extent permitted by Applicable Law and as determined by the Board, by one or more of the following methods of payment to the extent set forth in the Option Agreement:

 (i) by cash or check, bank draft or money order payable to the Company; 

(ii) pursuant to a “cashless exercise” program developed under Regulation T as promulgated by the Federal Reserve Board that,
prior to the issuance of the Ordinary Shares subject to the Option, results in either the receipt of cash (or check) by the Company or the receipt of irrevocable instructions to pay the exercise price to the Company from the sales proceeds; 

(iii) by a repurchase by the Company of Ordinary Shares that are already owned by the Participant free and clear of any liens, claims,
encumbrances or security interests, with a Fair Market Value on the date of exercise that does not exceed the exercise price, and the utilization of the repurchase price as the payment of the exercise price; provided that (1) at the time of
exercise the Ordinary Shares is publicly traded, (2) any remaining balance of the exercise price not satisfied by such utilization is paid by the Participant in cash or other permitted form of payment, (3) such delivery would not violate
any Applicable Law or agreement restricting the redemption of the Ordinary Shares, (4) any certificated shares are endorsed or accompanied by an executed assignment separate from certificate, and (5) such shares have been held by the
Participant for any minimum period necessary to avoid adverse accounting treatment as a result of such delivery; 
 (iv) if the
Option is a Nonstatutory Share Option, by a “net exercise” arrangement pursuant to which the Company will reduce the number of Ordinary Shares issuable upon exercise by the largest whole number of shares with a Fair Market Value on the
date of exercise that does not exceed the exercise price, provided that (1) such shares used to 

  
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pay the exercise price will not be exercisable thereafter, (2) the par value of the Ordinary Shares is paid by the Participant in cash, and (3) any remaining balance of the exercise
price not satisfied by such net exercise is paid by the Participant in cash or other permitted form of payment; or 
 (v) in any
other form of consideration that may be acceptable to the Board and permissible under Applicable Law. 
 (d) Exercise Procedure
and Payment of Appreciation Distribution for SARs. In order to exercise any SAR, the Participant must provide notice of exercise to the Plan Administrator in accordance with the SAR Agreement. The appreciation distribution payable to a
Participant upon the exercise of a SAR will not be greater than an amount equal to the excess of (i) the aggregate Fair Market Value on the date of exercise of a number of Ordinary Shares equal to the number of Ordinary Shares equivalents that
are vested and being exercised under such SAR, over (ii) the strike price of such SAR. Such appreciation distribution may be paid to the Participant in the form of Ordinary Shares or cash (or any combination of Ordinary Shares and cash) or in
any other form of payment, as determined by the Board and specified in the SAR Agreement. 
 (e) Transferability. Options and
SARs may not be transferred to third party financial institutions for value. The Board may impose such additional limitations on the transferability of an Option or SAR as it determines. In the absence of any such determination by the Board, the
following restrictions on the transferability of Options and SARs will apply, provided that except as explicitly provided herein, neither an Option nor a SAR may be transferred for consideration and provided, further, that if an Option is an
Incentive Share Option, such Option may be deemed to be a Nonstatutory Share Option as a result of such transfer: 
 (i)
Restrictions on Transfer. An Option or SAR will not be transferable, except by will or by the laws of descent and distribution, and will be exercisable during the lifetime of the Participant only by the Participant; provided, however, that
the Board may permit transfer of an Option or SAR in a manner that is not prohibited by applicable tax and securities laws upon the Participant’s request, including to a trust if the Participant is considered to be the sole beneficial owner of
such trust (as determined under Section 671 of the Code and applicable state law) while such Option or SAR is held in such trust, provided that the Participant and the trustee enter into a transfer and other agreements required by the Company.

 (ii) Domestic Relations Orders. Notwithstanding the foregoing, subject to the execution of transfer documentation in a
format acceptable to the Company and subject to the approval of the Board or a duly authorized Officer, an Option or SAR may be transferred pursuant to a domestic relations order. 

(f) Vesting. The Board may impose such restrictions on or conditions to the vesting and/or exercisability of an Option or SAR as
determined by the Board. Except as otherwise provided in the Award Agreement or other written agreement between a Participant and the Company or an Affiliate, vesting of Options and SARs will cease upon termination of the Participant’s
Continuous Service. 

  
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 (g) Termination of Continuous Service for Cause. Except as explicitly
otherwise provided in the Award Agreement or other written agreement between a Participant and the Company or an Affiliate, if a Participant’s Continuous Service is terminated for Cause, the Participant’s Options and SARs will terminate
and be forfeited immediately upon such termination of Continuous Service, and the Participant will be prohibited from exercising any portion (including any vested portion) of such Awards on and after the date of such termination of Continuous
Service and the Participant will have no further right, title or interest in such forfeited Award, the Ordinary Shares subject to the forfeited Award, or any consideration in respect of the forfeited Award. 

(h) Post-Termination Exercise Period Following Termination of Continuous Service for Reasons Other than Cause. Subject to
Section 4(i), if a Participant’s Continuous Service terminates for any reason other than for Cause, the Participant may exercise his or her Option or SAR to the extent vested, but only within the following period of time or, if applicable,
such other period of time provided in the Award Agreement or other written agreement between a Participant and the Company or an Affiliate; provided, however, that in no event may such Award be exercised after the expiration of its maximum term (as
set forth in Section 4(a)): 
 (i) three months following the date of such termination if such termination is a termination
without Cause (other than any termination due to the Participant’s Disability or death); 
 (ii) 12 months following the date of
such termination if such termination is due to the Participant’s Disability; 
 (iii) 18 months following the date of such
termination if such termination is due to the Participant’s death; or 
 (iv) 18 months following the date of the
Participant’s death if such death occurs following the date of such termination but during the period such Award is otherwise exercisable (as provided in (i) or (ii) above). 

Following the date of such termination, to the extent the Participant does not exercise such Award within the applicable Post-Termination Exercise Period (or,
if earlier, prior to the expiration of the maximum term of such Award), such unexercised portion of the Award will terminate, and the Participant will have no further right, title or interest in the terminated Award, the Ordinary Shares subject to
the terminated Award, or any consideration in respect of the terminated Award. 
 (i) Restrictions on Exercise; Extension of
Exercisability. A Participant may not exercise an Option or SAR at any time that the issuance of Ordinary Shares upon such exercise would violate Applicable Law. Except as otherwise provided in the Award Agreement or other written agreement
between a Participant and the Company or an Affiliate, if a Participant’s Continuous Service terminates for any reason other than for Cause and, at any time during the last thirty days of the applicable Post-Termination Exercise Period:
(i) the exercise of the Participant’s Option or SAR would be prohibited solely because the issuance of Ordinary Shares upon such exercise would violate Applicable Law, or (ii) the immediate sale of any Ordinary


  
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Shares issued upon such exercise would violate the Company’s Trading Policy, then the applicable Post-Termination Exercise Period will be extended to the last day of the calendar month that
commences following the date the Award would otherwise expire, with an additional extension of the exercise period to the last day of the next calendar month to apply if any of the foregoing restrictions apply at any time during such extended
exercise period, generally without limitation as to the maximum permitted number of extensions); provided, however, that in no event may such Award be exercised after the expiration of its maximum term (as set forth in Section 4(a)). 

(j) Non-Exempt Employees. No Option or SAR, whether or not vested, granted to an
Employee who is a non-exempt employee for purposes of the Fair Labor Standards Act of 1938, as amended, will be first exercisable for any Ordinary Shares until at least six months following the date of grant
of such Award. Notwithstanding the foregoing, in accordance with the provisions of the Worker Economic Opportunity Act, any vested portion of such Award may be exercised earlier than six months following the date of grant of such Award in the event
of (i) such Participant’s death or Disability, (ii) a Corporate Transaction in which such Award is not assumed, continued or substituted, (iii) a Change in Control, or (iv) such Participant’s retirement (as such term
may be defined in the Award Agreement or another applicable agreement or, in the absence of any such definition, in accordance with the Company’s then current employment policies and guidelines). This Section 4(j) is intended to operate so
that any income derived by a non-exempt employee in connection with the exercise or vesting of an Option or SAR will be exempt from his or her regular rate of pay. 

(k) Whole Shares. Options and SARs may be exercised only with respect to whole Ordinary Shares or their equivalents. 

 

	5.	 AWARDS OTHER THAN OPTIONS AND
SHARE APPRECIATION RIGHTS. 


 (a) Restricted Share Awards and
RSU Awards. Each Restricted Share Award and RSU Award will have such terms and conditions as determined by the Board; provided, however, that each Restricted Share Award Agreement and RSU Award Agreement will conform (through incorporation of
the provisions hereof by reference in the Award Agreement or otherwise) to the substance of each of the following provisions: 
 (i) Form
of Award. 
 (1) RSAs: To the extent consistent with the Company’s memorandum and articles of association and the laws of
the Cayman Islands, at the Board’s election, Ordinary Shares subject to a Restricted Share Award may be (i) held in book entry form subject to the Company’s instructions until such shares become vested or any other restrictions lapse,
or (ii) evidenced by a certificate, which certificate will be held in such form and manner as determined by the Board. Unless otherwise determined by the Board, a Participant will have voting and other rights as a shareholder of the Company
with respect to any shares subject to a Restricted Share Award. 
 (2) RSUs: A RSU Award represents a Participant’s right to be
issued on a future date the number of Ordinary Shares that is equal to the number of restricted share 

  
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units subject to the RSU Award. As a holder of a RSU Award, a Participant is an unsecured creditor of the Company with respect to the Company’s unfunded obligation, if any, to issue Ordinary
Shares in settlement of such Award and nothing contained in the Plan or any RSU Agreement, and no action taken pursuant to its provisions, will create or be construed to create a trust of any kind or a fiduciary relationship between a Participant
and the Company or an Affiliate or any other person. A Participant will not have voting or any other rights as a shareholder of the Company with respect to any RSU Award (unless and until shares are actually issued in settlement of a vested RSU
Award and the Participant has been entered into the register of members of the Company as the registered holder of such Ordinary Shares). 

(ii) Consideration. 

(1) RSA: A Restricted Share Award may be granted in consideration for (A) cash or check, bank draft or money order payable to the
Company, (B) services to the Company or an Affiliate, or (C) any other form of consideration (including future services) as the Board may determine and permissible under Applicable Law. 

(2) RSU: Unless otherwise determined by the Board at the time of grant, a RSU Award will be granted in consideration for the
Participant’s services to the Company or an Affiliate, such that the Participant will not be required to make any payment to the Company (other than such services) with respect to the grant or vesting of the RSU Award, or the issuance of any
Ordinary Shares pursuant to the RSU Award. If, at the time of grant, the Board determines that any consideration must be paid by the Participant (in a form other than the Participant’s services to the Company or an Affiliate) upon the issuance
of any Ordinary Shares in settlement of the RSU Award, such consideration may be paid in any form of consideration as the Board may determine and permissible under Applicable Law. 

(iii) Vesting. The Board may impose such restrictions on or conditions to the vesting of a Restricted Share Award or RSU Award
as determined by the Board. Except as otherwise provided in the Award Agreement or other written agreement between a Participant and the Company or an Affiliate, vesting of Restricted Share Awards and RSU Awards will cease upon termination of the
Participant’s Continuous Service. 
 (iv) Termination of Continuous Service. Except as otherwise provided in the Award
Agreement or other written agreement between a Participant and the Company or an Affiliate, if a Participant’s Continuous Service terminates for any reason, (i) the Company may receive through a forfeiture condition or a repurchase right
any or all of the Ordinary Shares held by the Participant under his or her Restricted Share Award that have not vested as of the date of such termination as set forth in the Restricted Share Award Agreement and (ii) any portion of his or her
RSU Award that has not vested will be forfeited upon such termination and the Participant will have no further right, title or interest in the RSU Award, the Ordinary Shares issuable pursuant to the RSU Award, or any consideration in respect of the
RSU Award. 
 (v) Dividends and Dividend Equivalents. Dividends or dividend equivalents may be paid or credited, as
applicable, with respect to any Ordinary Shares subject to a Restricted Share Award or RSU Award, as determined by the Board and specified in the Award Agreement). 

  
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 (vi) Settlement of RSU Awards. A RSU Award may be settled by the issuance of
Ordinary Shares or cash (or any combination thereof) or in any other form of payment, as determined by the Board and specified in the RSU Award Agreement. At the time of grant, the Board may determine to impose such restrictions or conditions that
delay such delivery to a date following the vesting of the RSU Award. 
 (b) Performance Awards. With respect to any
Performance Award, the length of any Performance Period, the Performance Goals to be achieved during the Performance Period, the other terms and conditions of such Award, and the measure of whether and to what degree such Performance Goals have been
attained will be determined by the Board. 
 (c) Other Awards. Other forms of Awards valued in whole or in part by reference
to, or otherwise based on, Ordinary Shares, including the appreciation in value thereof (e.g., options or stock rights with an exercise price or strike price less than 100% of the Fair Market Value at the time of grant) may be granted either alone
or in addition to Awards provided for under Section 4 and the preceding provisions of this Section 5. Subject to the provisions of the Plan, the Board will have sole and complete discretion to determine the persons to whom and the time or
times at which such Other Awards will be granted, the number of Ordinary Shares (or the cash equivalent thereof) to be granted pursuant to such Other Awards and all other terms and conditions of such Other Awards. 

 

	6.	 ADJUSTMENTS UPON CHANGES IN
ORDINARY SHARES; OTHER CORPORATE EVENTS. 



(a) Capitalization Adjustments. In the event of a Capitalization Adjustment, the Board shall appropriately and proportionately
adjust: (i) the class(es) and maximum number of Ordinary Shares subject to the Plan and the maximum number of shares by which the Share Reserve may annually increase pursuant to Section 2(a); (ii) the class(es) and maximum number of shares
that may be issued pursuant to the exercise of Incentive Share Options pursuant to Section 2(a); and (iii) the class(es) and number of securities and exercise price, strike price or purchase price of Ordinary Shares subject to outstanding
Awards. The Board shall make such adjustments, and its determination shall be final, binding and conclusive. Notwithstanding the foregoing, no fractional shares or rights for fractional Ordinary Shares shall be created in order to implement any
Capitalization Adjustment. The Board shall determine an appropriate equivalent benefit, if any, for any fractional shares or rights to fractional shares that might be created by the adjustments referred to in the preceding provisions of this
Section. 
 (b) Dissolution or Liquidation. Except as otherwise provided in the Award Agreement, in the event of a dissolution
or liquidation of the Company, all outstanding Awards (other than Awards consisting of vested and outstanding Ordinary Shares not subject to a forfeiture condition or the Company’s right of repurchase) will terminate immediately prior to the
completion of such dissolution or liquidation, and the Ordinary Shares subject to the Company’s repurchase rights or subject to a forfeiture condition may be repurchased or reacquired by the Company notwithstanding the fact that the holder of
such Award is providing Continuous Service, provided, however, that the Board may determine to cause some or all Awards to become fully vested, exercisable and/or no longer subject to repurchase or forfeiture (to the extent such Awards have not
previously expired or terminated) before the dissolution or liquidation is completed but contingent on its completion. 

  
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 (c) Corporate Transaction. The following provisions will apply to Awards in
the event of a Corporate Transaction unless otherwise provided in the instrument evidencing the Award or any other written agreement between the Company or any Affiliate and the Participant or unless otherwise expressly provided by the Board at the
time of grant of an Award. 
 (i) Awards May Be Assumed. In the event of a Corporate Transaction, any surviving corporation or
acquiring corporation (or the surviving or acquiring corporation’s parent company) may assume or continue any or all Awards outstanding under the Plan or may substitute similar awards for Awards outstanding under the Plan (including but not
limited to, awards to acquire the same consideration paid to the shareholders of the Company pursuant to the Corporate Transaction), and any reacquisition or repurchase rights held by the Company in respect of Ordinary Shares issued pursuant to
Awards may be assigned by the Company to the successor of the Company (or the successor’s parent company, if any), in connection with such Corporate Transaction. A surviving corporation or acquiring corporation (or its parent) may choose to
assume or continue only a portion of an Award or substitute a similar award for only a portion of an Award, or may choose to assume or continue the Awards held by some, but not all Participants. The terms of any assumption, continuation or
substitution will be set by the Board. 
 (ii) Awards Held by Current Participants. In the event of a Corporate Transaction in
which the surviving corporation or acquiring corporation (or its parent company) does not assume or continue such outstanding Awards or substitute similar awards for such outstanding Awards, then with respect to Awards that have not been assumed,
continued or substituted and that are held by Participants whose Continuous Service has not terminated prior to the effective time of the Corporate Transaction (referred to as the “Current Participants”), the vesting of such
Awards (and, with respect to Options and Share Appreciation Rights, the time when such Awards may be exercised) will be accelerated in full to a date prior to the effective time of such Corporate Transaction (contingent upon the effectiveness
of the Corporate Transaction) as the Board determines (or, if the Board does not determine such a date, to the date that is five (5) days prior to the effective time of the Corporate Transaction), and such Awards will terminate if not exercised
(if applicable) at or prior to the effective time of the Corporate Transaction, and any reacquisition or repurchase rights held by the Company with respect to such Awards will lapse (contingent upon the effectiveness of the Corporate Transaction).
With respect to the vesting of Performance Awards that will accelerate upon the occurrence of a Corporate Transaction pursuant to this subsection (ii) and that have multiple vesting levels depending on the level of performance, unless otherwise
provided in the Award Agreement or unless otherwise provided by the Board, the vesting of such Performance Awards will accelerate at 100% of the target level upon the occurrence of the Corporate Transaction. With respect to the vesting of Awards
that will accelerate upon the occurrence of a Corporate Transaction pursuant to this subsection (ii) and are settled in the form of a cash payment, such cash payment will be made no later than 30 days following the occurrence of the Corporate
Transaction. 
 (iii) Awards Held by Persons other than Current Participants. In the event of a Corporate Transaction in which
the surviving corporation or acquiring corporation (or its parent company) does not assume or continue such outstanding Awards or substitute similar awards for such outstanding Awards, then with respect to Awards that have not been assumed,
continued or substituted and that are held by persons other than Current Participants, 

  
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such Awards will terminate if not exercised (if applicable) prior to the occurrence of the Corporate Transaction; provided, however, that any reacquisition or repurchase rights held by the
Company with respect to such Awards will not terminate and may continue to be exercised notwithstanding the Corporate Transaction. 

(iv) Payment for Awards in Lieu of Exercise. Notwithstanding the foregoing, in the event an Award will terminate if not
exercised prior to the effective time of a Corporate Transaction, the Board may provide, in its sole discretion, that the holder of such Award may not exercise such Award but will receive a payment, in such form as may be determined by the Board,
equal in value, at the effective time, to the excess, if any, of (1) the value of the property the Participant would have received upon the exercise of the Award (including, at the discretion of the Board, any unvested portion of such Award),
over (2) any exercise price payable by such holder in connection with such exercise. 
 (d) Appointment of Shareholder
Representative. As a condition to the receipt of an Award under this Plan, a Participant will be deemed to have agreed that the Award will be subject to the terms of any agreement governing a Corporate Transaction involving the Company,
including, without limitation, a provision for the appointment of a shareholder representative that is authorized to act on the Participant’s behalf with respect to any escrow, indemnities and any contingent consideration. 

(e) No Restriction on Right to Undertake Transactions. The grant of any Award under the Plan and the issuance of shares pursuant
to any Award does not affect or restrict in any way the right or power of the Company or the shareholders of the Company to make or authorize any adjustment, recapitalization, reorganization or other change in the Company’s capital structure or
its business, any merger or consolidation of the Company, any issue of shares or of options, rights or options to purchase shares or of bonds, debentures, preferred or prior preference shares whose rights are superior to or affect the Ordinary
Shares or the rights thereof or which are convertible into or exchangeable for Ordinary Shares, or the dissolution or liquidation of the Company, or any sale or transfer of all or any part of its assets or business, or any other corporate act or
proceeding, whether of a similar character or otherwise. 
  

	7.	 ADMINISTRATION. 



(a) Administration by Board. The Board will administer the Plan unless and until the Board delegates administration of the Plan
to a Committee or Committees, as provided in subsection (c) below. 
 (b) Powers of Board. The Board will have the power,
subject to, and within the limitations of, the express provisions of the Plan: 
 (i) To determine from time to time (1) which
of the persons eligible under the Plan will be granted Awards; (2) when and how each Award will be granted; (3) what type or combination of types of Award will be granted; (4) the provisions of each Award granted (which need not be
identical), including the time or times when a person will be permitted to receive an issuance of Ordinary Shares or other payment pursuant to an Award; (5) the number of Ordinary Shares or cash equivalent with respect to which an Award will be
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such person; (6) the Fair Market Value applicable to an Award; and (7) the terms of any Performance Award that is not valued in whole or in part by reference to, or otherwise based on,
the Ordinary Shares, including the amount of cash payment or other property that may be earned and the timing of payment. 
 (ii) To
construe and interpret the Plan and Awards granted under it, and to establish, amend and revoke rules and regulations for its administration. The Board, in the exercise of this power, may correct any defect, omission or inconsistency in the Plan or
in any Award Agreement, in a manner and to the extent it deems necessary or expedient to make the Plan or Award fully effective. 

(iii) To settle all controversies regarding the Plan and Awards granted under it. 

(iv) To accelerate the time at which an Award may first be exercised or the time during which an Award or any part thereof will vest,
notwithstanding the provisions in the Award Agreement stating the time at which it may first be exercised or the time during which it will vest. 

(v) To prohibit the exercise of any Option, SAR or other exercisable Award during a period of up to 30 days prior to the consummation
of any pending share dividend, share sub-division, stock split, combination or exchange of shares, merger, consolidation or other distribution (other than normal cash dividends) of Company assets to
shareholders, or any other change affecting the Ordinary Shares or the share price of the Ordinary Shares including any Corporate Transaction, for reasons of administrative convenience. 

(vi) To suspend or terminate the Plan at any time. Suspension or termination of the Plan will not Materially Impair rights and
obligations under any Award granted while the Plan is in effect except with the written consent of the affected Participant. 
 (vii)
To amend the Plan in any respect the Board deems necessary or advisable; provided, however, that shareholder approval will be required for any amendment to the extent required by Applicable Law. Except as provided above, rights under any
Award granted before amendment of the Plan will not be Materially Impaired by any amendment of the Plan unless (1) the Company requests the consent of the affected Participant, and (2) such Participant consents in writing. 

(viii) To submit any amendment to the Plan for shareholder approval. 

(ix) To approve forms of Award Agreements for use under the Plan and to amend the terms of any one or more Awards, including, but not
limited to, amendments to provide terms more favorable to the Participant than previously provided in the Award Agreement, subject to any specified limits in the Plan that are not subject to Board discretion; provided however, that, a
Participant’s rights under any Award will not be Materially Impaired by any such amendment unless (1) the Company requests the consent of the affected Participant, and (2) such Participant consents in writing. 

  
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 (x) Generally, to exercise such powers and to perform such acts as the Board deems
necessary or expedient to promote the best interests of the Company and that are not in conflict with the provisions of the Plan or Awards. 

(xi) To adopt such procedures and sub-plans as are necessary or appropriate to permit and
facilitate participation in the Plan by, or take advantage of specific tax treatment for Awards granted to, Employees, Directors or Consultants who are foreign nationals or employed outside the United States (provided that Board approval will not be
necessary for immaterial modifications to the Plan or any Award Agreement to ensure or facilitate compliance with the laws of the relevant foreign jurisdiction). 

(xii) To effect, at any time and from time to time, subject to the consent of any Participant whose Award is Materially Impaired by
such action, (1) the reduction of the exercise price (or strike price) of any outstanding Option or SAR; (2) the cancellation of any outstanding Option or SAR and the grant in substitution therefor of (A) a new Option, SAR, Restricted
Share Award, RSU Award or Other Award, under the Plan or another equity plan of the Company, covering the same or a different number of Ordinary Shares, (B) cash and/or (C) other valuable consideration (as determined by the Board); or
(3) any other action that is treated as a repricing under generally accepted accounting principles. 
 (c) Delegation to Committee.

 (i) General. The Board may delegate some or all of the administration of the Plan to a Committee or Committees. If
administration of the Plan is delegated to a Committee, the Committee will have, in connection with the administration of the Plan, the powers theretofore possessed by the Board that have been delegated to the Committee, including the power to
delegate to another Committee or a subcommittee of the Committee any of the administrative powers the Committee is authorized to exercise (and references in this Plan to the Board will thereafter be to the Committee or subcommittee), subject,
however, to such resolutions, not inconsistent with the provisions of the Plan, as may be adopted from time to time by the Board. Each Committee may retain the authority to concurrently administer the Plan with Committee or subcommittee to which it
has delegated its authority hereunder and may, at any time, revest in such Committee some or all of the powers previously delegated. The Board may retain the authority to concurrently administer the Plan with any Committee and may, at any time,
revest in the Board some or all of the powers previously delegated. 
 (ii) Rule 16b-3
Compliance. To the extent an Award is intended to qualify for the exemption from Section 16(b) of the Exchange Act that is available under Rule 16b-3 of the Exchange Act, the Award will be granted by
the Board or a Committee that consists solely of two or more Non-Employee Directors, as determined under Rule 16b-3(b)(3) of the Exchange Act and thereafter any action
establishing or modifying the terms of the Award will be approved by the Board or a Committee meeting such requirements to the extent necessary for such exemption to remain available. 

(d) Effect of Board’s Decision. All determinations, interpretations and constructions made by the Board or
any Committee in good faith will not be subject to review by any person and will be final, binding and conclusive on all persons. 

  
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 (e) Delegation to an Officer. The Board or any Committee may delegate to one
or more Officers the authority to do one or both of the following (i) designate Employees who are not Officers to be recipients of Options and SARs (and, to the extent permitted by Applicable Law, other types of Awards) and, to the extent
permitted by Applicable Law, the terms thereof, and (ii) determine the number of Ordinary Shares to be subject to such Awards granted to such Employees; provided, however, that the resolutions or charter adopted by the Board or any Committee
evidencing such delegation will specify the total number of Ordinary Shares that may be subject to the Awards granted by such Officer and that such Officer may not grant an Award to himself or herself. Any such Awards will be granted on the
applicable form of Award Agreement most recently approved for use by the Board or the Committee, unless otherwise provided in the resolutions approving the delegation authority. Notwithstanding anything to the contrary herein, neither the Board nor
any Committee may delegate to an Officer who is acting solely in the capacity of an Officer (and not also as a Director) the authority to determine the Fair Market Value. 
  

	8.	 TAX WITHHOLDING 



(a) Withholding Authorization. As a condition to acceptance of any Award under the Plan, a Participant authorizes withholding
from payroll and any other amounts payable to such Participant, and otherwise agree to make adequate provision for (including), any sums required to satisfy any U.S. federal, state, local and/or foreign tax or social insurance contribution
withholding obligations of the Company or an Affiliate, if any, which arise in connection with the exercise, vesting or settlement of such Award, as applicable. Accordingly, a Participant may not be able to exercise an Award even though the Award is
vested, and the Company shall have no obligation to issue of Ordinary Shares subject to an Award, unless and until such obligations are satisfied. 

(b) Satisfaction of Withholding Obligation. To the extent permitted by the terms of an Award Agreement, the Company may, in its
sole discretion, satisfy any U.S. federal, state, local and/or foreign tax or social insurance withholding obligation relating to an Award by any of the following means or by a combination of such means: (i) causing the Participant to tender a
cash payment; (ii) withholding Ordinary Shares from the Ordinary Shares issued or otherwise issuable to the Participant in connection with the Award; (iii) withholding cash from an Award settled in cash; (iv) withholding payment from
any amounts otherwise payable to the Participant; (v) by allowing a Participant to effectuate a “cashless exercise” pursuant to a program developed under Regulation T as promulgated by the Federal Reserve Board; or (vi) by such
other method as may be set forth in the Award Agreement. 
 (c) No Obligation to Notify or Minimize Taxes; No Liability to Claims.
Except as required by Applicable Law the Company has no duty or obligation to any Participant to advise such holder as to the time or manner of exercising such Award. Furthermore, the Company has no duty or obligation to warn or otherwise advise
such holder of a pending termination or expiration of an Award or a possible period in which the Award may not be exercised. The Company has no duty or obligation to minimize the tax consequences of an Award to the holder of such Award and will not
be liable to any holder of an Award for any adverse tax consequences to such holder in connection with an Award. As a condition to accepting an Award under the Plan, each Participant (i) agrees to not make any claim against the Company, or any
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Officers, Directors, Employees or Affiliates related to tax liabilities arising from such Award or other Company compensation and (ii) acknowledges that such Participant was advised to
consult with his or her own personal tax, financial and other legal advisors regarding the tax consequences of the Award and has either done so or knowingly and voluntarily declined to do so. Additionally, each Participant acknowledges any Option or
SAR granted under the Plan is exempt from Section 409A only if the exercise or strike price is at least equal to the “fair market value” of the Ordinary Shares on the date of grant as determined by the Internal Revenue Service and
there is no other impermissible deferral of compensation associated with the Award. Additionally, as a condition to accepting an Option or SAR granted under the Plan, each Participant agrees not make any claim against the Company, or any of its
Officers, Directors, Employees or Affiliates in the event that the Internal Revenue Service asserts that such exercise price or strike price is less than the “fair market value” of the Ordinary Shares on the date of grant as subsequently
determined by the Internal Revenue Service. 
 (d) Withholding Indemnification. As a condition to accepting an Award under the
Plan, in the event that the amount of the Company’s and/or its Affiliate’s withholding obligation in connection with such Award was greater than the amount actually withheld by the Company and/or its Affiliates, each Participant agrees to
indemnify and hold the Company and/or its Affiliates harmless from any failure by the Company and/or its Affiliates to withhold the proper amount. 
  

	9.	 MISCELLANEOUS. 



(a) Source of Shares. The shares issuable under the Plan will be authorized but unissued or reacquired Ordinary Shares, including
shares repurchased by the Company on the open market or otherwise (including Ordinary Shares designated and held by the Company as treasury shares). 

(b) Use of Proceeds from Sales of Ordinary Shares. Proceeds from the sale of Ordinary Shares pursuant to Awards will constitute
general funds of the Company. 
 (c) Corporate Action Constituting Grant of Awards. Corporate action constituting a grant by
the Company of an Award to any Participant will be deemed completed as of the date of such corporate action, unless otherwise determined by the Board, regardless of when the instrument, certificate, or letter evidencing the Award is communicated to,
or actually received or accepted by, the Participant. In the event that the corporate records (e.g., Board consents, resolutions or minutes) documenting the corporate action approving the grant contain terms (e.g., exercise price, vesting schedule
or number of shares) that are inconsistent with those in the Award Agreement or related grant documents as a result of a clerical error in the Award Agreement or related grant documents, the corporate records will control and the Participant will
have no legally binding right to the incorrect term in the Award Agreement or related grant documents. 
 (d) Shareholder
Rights. No Participant will be deemed to be the holder of, or to have any of the rights of a holder with respect to, any Ordinary Shares subject to such Award unless and until (i) such Participant has satisfied all requirements for exercise
of the Award pursuant to its terms, if applicable, and (ii) the issuance of the Ordinary Shares subject to such Award is recorded in the register of members of the Company. 

  
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 (e) No Employment or Other Service Rights. Nothing in the Plan, any Award
Agreement or any other instrument executed thereunder or in connection with any Award granted pursuant thereto will confer upon any Participant any right to continue to serve the Company or an Affiliate in the capacity in effect at the time the
Award was granted or affect the right of the Company or an Affiliate to terminate at will and without regard to any future vesting opportunity that a Participant may have with respect to any Award (i) the employment of an Employee with or
without notice and with or without cause, (ii) the service of a Consultant pursuant to the terms of such Consultant’s agreement with the Company or an Affiliate, or (iii) the service of a Director pursuant to the memorandum and
articles of association of the Company or an Affiliate, and any applicable provisions of the corporate law of the state or foreign jurisdiction in which the Company or the Affiliate is incorporated, as the case may be. Further, nothing in the Plan,
any Award Agreement or any other instrument executed thereunder or in connection with any Award will constitute any promise or commitment by the Company or an Affiliate regarding the fact or nature of future positions, future work assignments,
future compensation or any other term or condition of employment or service or confer any right or benefit under the Award or the Plan unless such right or benefit has specifically accrued under the terms of the Award Agreement and/or Plan. 

(f) Change in Time Commitment. In the event a Participant’s regular level of time commitment in the performance of his or
her services for the Company and any Affiliates is reduced (for example, and without limitation, if the Participant is an Employee of the Company and the Employee has a change in status from a full-time Employee to a part-time Employee or takes an
extended leave of absence) after the date of grant of any Award to the Participant, the Board may determine, to the extent permitted by Applicable Law, to (i) make a corresponding reduction in the number of shares or cash amount subject to any
portion of such Award that is scheduled to vest or become payable after the date of such change in time commitment, and (ii) in lieu of or in combination with such a reduction, extend the vesting or payment schedule applicable to such Award. In
the event of any such reduction, the Participant will have no right with respect to any portion of the Award that is so reduced or extended. 

(g) Execution of Additional Documents. As a condition to accepting an Award under the Plan, the Participant agrees to execute
any additional documents or instruments necessary or desirable, as determined in the Plan Administrator’s sole discretion, to carry out the purposes or intent of the Award, or facilitate compliance with securities and/or other regulatory
requirements, in each case at the Plan Administrator’s request. 
 (h) Electronic Delivery and Participation. Any
reference herein or in an Award Agreement to a “written” agreement or document will include any agreement or document delivered electronically, filed publicly at www.sec.gov (or any successor website thereto) or posted on the
Company’s intranet (or other shared electronic medium controlled by the Company to which the Participant has access). By accepting any Award the Participant consents to receive documents by electronic delivery and to participate in the Plan
through any on-line electronic system established and maintained by the Plan Administrator or another third party selected by the Plan Administrator. The form of delivery of any Ordinary Shares (e.g., a share
certificate or electronic entry evidencing such shares) shall be determined by the Company. 

  
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 (i) Clawback/Recovery. All Awards granted under the Plan will be subject to
recoupment in accordance with any clawback policy that the Company is required to adopt pursuant to the listing standards of any national securities exchange or association on which the Company’s securities are listed or as is otherwise
required by the Dodd-Frank Wall Street Reform and Consumer Protection Act or other Applicable Law and any clawback policy that the Company otherwise adopts, to the extent applicable and permissible under Applicable Law. In addition, the Board may
impose such other clawback, recovery or recoupment provisions in an Award Agreement as the Board determines necessary or appropriate, including but not limited to a reacquisition right in respect of previously acquired Ordinary Shares or other cash
or property upon the occurrence of Cause. No recovery of compensation under such a clawback policy will be an event giving rise to a Participant’s right to voluntary terminate employment upon a “resignation for good reason,” or for a
“constructive termination” or any similar term under any plan of or agreement with the Company. 
 (j) Securities Law
Compliance. A Participant will not be issued any shares in respect of an Award unless either (i) the shares are registered under the Securities Act; or (ii) the Company has determined that such issuance would be exempt from the
registration requirements of the Securities Act. Each Award also must comply with other Applicable Law governing the Award, and a Participant will not receive such shares if the Company determines that such receipt would not be in material
compliance with Applicable Law. 
 (k) Transfer or Assignment of Awards; Issued Shares. Except as expressly provided in the
Plan or the form of Award Agreement, Awards granted under the Plan may not be transferred or assigned by the Participant. After the vested shares subject to an Award have been issued, or in the case of Restricted Share and similar awards, after the
issued shares have vested, the holder of such shares is free to assign, hypothecate, donate, encumber or otherwise dispose of any interest in such shares provided that any such actions are in compliance with the provisions herein, the terms of the
Trading Policy and Applicable Law. 
 (l) Effect on Other Employee Benefit Plans. The value of any Award granted under the
Plan, as determined upon grant, vesting or settlement, shall not be included as compensation, earnings, salaries, or other similar terms used when calculating any Participant’s benefits under any employee benefit plan sponsored by the Company
or any Affiliate, except as such plan otherwise expressly provides. The Company expressly reserves its rights to amend, modify, or terminate any of the Company’s or any Affiliate’s employee benefit plans. 

(m) Deferrals. To the extent permitted by Applicable Law, the Board, in its sole discretion, may determine that the delivery of
Ordinary Shares or the payment of cash, upon the exercise, vesting or settlement of all or a portion of any Award may be deferred and may also establish programs and procedures for deferral elections to be made by Participants. Deferrals by will be
made in accordance with the requirements of Section 409A. 
 (n) Section 409A. Unless otherwise expressly provided for in
an Award Agreement, the Plan and Award Agreements will be interpreted to the greatest extent possible in a manner 

  
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that makes the Plan and the Awards granted hereunder exempt from Section 409A, and, to the extent not so exempt, in compliance with the requirements of Section 409A. If the Board
determines that any Award granted hereunder is not exempt from and is therefore subject to Section 409A, the Award Agreement evidencing such Award will incorporate the terms and conditions necessary to avoid the consequences specified in
Section 409A(a)(1) of the Code, and to the extent an Award Agreement is silent on terms necessary for compliance, such terms are hereby incorporated by reference into the Award Agreement. Notwithstanding anything to the contrary in this Plan
(and unless the Award Agreement specifically provides otherwise), if the Ordinary Shares are publicly traded, and if a Participant holding an Award that constitutes “deferred compensation” under Section 409A is a “specified
employee” for purposes of Section 409A, no distribution or payment of any amount that is due because of a “separation from service” (as defined in Section 409A without regard to alternative definitions thereunder) will be
issued or paid before the date that is six months and one day following the date of such Participant’s “separation from service” or, if earlier, the date of the Participant’s death, unless such distribution or payment can be made
in a manner that complies with Section 409A, and any amounts so deferred will be paid in a lump sum on the day after such six month period elapses, with the balance paid thereafter on the original schedule. 

(o) CHOICE OF LAW. This Plan and any controversy arising out of or relating to this
Plan shall be governed by, and construed in accordance with, the internal laws of the Cayman Islands, without regard to conflict of law principles that would result in any application of any law other than the law of the Cayman Islands. 

 

	10.	 COVENANTS OF THE COMPANY.



 (a) Compliance with Law. The Company will seek to obtain from each regulatory commission or agency, as
may be deemed to be necessary, having jurisdiction over the Plan such authority as may be required to grant Awards and to issue and sell Ordinary Shares upon exercise or vesting of the Awards; provided, however, that this undertaking will not
require the Company to register under the Securities Act the Plan, any Award or any Ordinary Shares issued or issuable pursuant to any such Award. If, after reasonable efforts and at a reasonable cost, the Company is unable to obtain from any such
regulatory commission or agency the authority that counsel for the Company deems necessary or advisable for the lawful issuance and sale of Ordinary Shares under the Plan, the Company will be relieved from any liability for failure to issue and sell
Ordinary Shares upon exercise or vesting of such Awards unless and until such authority is obtained. A Participant is not eligible for the grant of an Award or the subsequent issuance of Ordinary Shares pursuant to the Award if such grant or
issuance would be in violation of any Applicable Law. 
  

	11.	 ADDITIONAL RULES FOR AWARDS
SUBJECT TO SECTION 409A. 


 (a) Application. Unless the
provisions of this Section of the Plan are expressly superseded by the provisions in the form of Award Agreement, the provisions of this Section shall apply and shall supersede anything to the contrary set forth in the Award Agreement for a Non-Exempt Award. 

  
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 (b) Non-Exempt Awards Subject to Non-Exempt Severance Arrangements. To the extent a Non-Exempt Award is subject to Section 409A due to application of a
Non-Exempt Severance Arrangement, the following provisions of this subsection (b) apply. 

(i) If the Non-Exempt Award vests in the ordinary course during the Participant’s
Continuous Service in accordance with the vesting schedule set forth in the Award Agreement, and does not accelerate vesting under the terms of a Non-Exempt Severance Arrangement, in no event will the shares
be issued in respect of such Non-Exempt Award any later than the later of: (i) December 31st of the calendar year that includes the applicable vesting
date, or (ii) the 60th day that follows the applicable vesting date. 

(ii) If vesting of the Non-Exempt Award accelerates under the terms of a Non-Exempt Severance Arrangement in connection with the Participant’s Separation from Service, and such vesting acceleration provisions were in effect as of the date of grant of the Non-Exempt Award and, therefore, are part of the terms of such Non-Exempt Award as of the date of grant, then the shares will be earlier issued in settlement of such Non-Exempt Award upon the Participant’s Separation from Service in accordance with the terms of the Non-Exempt Severance Arrangement, but in no event later than the 60th day that follows the date of the Participant’s Separation from Service. However, if at the time the shares would otherwise be issued the Participant is subject to the distribution limitations
contained in Section 409A applicable to “specified employees,” as defined in Section 409A(a)(2)(B)(i) of the Code, such shares shall not be issued before the date that is six months following the date of such Participant’s
Separation from Service, or, if earlier, the date of the Participant’s death that occurs within such six month period. 
 (iii)
If vesting of a Non-Exempt Award accelerates under the terms of a Non-Exempt Severance Arrangement in connection with a Participant’s Separation from Service, and
such vesting acceleration provisions were not in effect as of the date of grant of the Non-Exempt Award and, therefore, are not a part of the terms of such Non-Exempt
Award on the date of grant, then such acceleration of vesting of the Non-Exempt Award shall not accelerate the issuance date of the shares, but the shares shall instead be issued on the same schedule as set
forth in the Grant Notice as if they had vested in the ordinary course during the Participant’s Continuous Service, notwithstanding the vesting acceleration of the Non-Exempt Award. Such issuance schedule
is intended to satisfy the requirements of payment on a specified date or pursuant to a fixed schedule, as provided under Treasury Regulations Section 1.409A-3(a)(4). 

(c) Treatment of Non-Exempt Awards Upon a Corporate Transaction for Employees and
Consultants. The provisions of this subsection (c) shall apply and shall supersede anything to the contrary set forth in the Plan with respect to the permitted treatment of any Non-Exempt Award in
connection with a Corporate Transaction if the Participant was either an Employee or Consultant upon the applicable date of grant of the Non-Exempt Award. 

(i) Vested Non-Exempt Awards. The following provisions shall apply to any Vested Non-Exempt Award in connection with a Corporate Transaction: 
 (1) If the Corporate Transaction
is also a Section 409A Change in Control then the Acquiring Entity may not assume, continue or substitute the Vested Non-

  
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Exempt Award. Upon the Section 409A Change in Control the settlement of the Vested Non-Exempt Award will automatically be accelerated and the shares
will be immediately issued in respect of the Vested Non-Exempt Award. Alternatively, the Company may instead provide that the Participant will receive a cash settlement equal to the Fair Market Value of the
shares that would otherwise be issued to the Participant upon the Section 409A Change in Control. 
 (2) If the Corporate
Transaction is not also a Section 409A Change in Control, then the Acquiring Entity must either assume, continue or substitute each Vested Non-Exempt Award. The shares to be issued in respect of the
Vested Non-Exempt Award shall be issued to the Participant by the Acquiring Entity on the same schedule that the shares would have been issued to the Participant if the Corporate Transaction had not occurred.
In the Acquiring Entity’s discretion, in lieu of an issuance of shares, the Acquiring Entity may instead substitute a cash payment on each applicable issuance date, equal to the Fair Market Value of the shares that would otherwise be issued to
the Participant on such issuance dates, with the determination of the Fair Market Value of the shares made on the date of the Corporate Transaction. 

(ii) Unvested Non-Exempt Awards. The following provisions shall apply to any Unvested Non-Exempt Award unless otherwise determined by the Board pursuant to subsection (e) of this Section. 

(1) In the event of a Corporate Transaction, the Acquiring Entity shall assume, continue or substitute any Unvested Non-Exempt Award. Unless otherwise determined by the Board, any Unvested Non-Exempt Award will remain subject to the same vesting and forfeiture restrictions that were
applicable to the Award prior to the Corporate Transaction. The shares to be issued in respect of any Unvested Non-Exempt Award shall be issued to the Participant by the Acquiring Entity on the same schedule
that the shares would have been issued to the Participant if the Corporate Transaction had not occurred. In the Acquiring Entity’s discretion, in lieu of an issuance of shares, the Acquiring Entity may instead substitute a cash payment on each
applicable issuance date, equal to the Fair Market Value of the shares that would otherwise be issued to the Participant on such issuance dates, with the determination of Fair Market Value of the shares made on the date of the Corporate Transaction.

 (2) If the Acquiring Entity will not assume, substitute or continue any Unvested
Non-Exempt Award in connection with a Corporate Transaction, then such Award shall automatically terminate and be forfeited upon the Corporate Transaction with no consideration payable to any Participant in
respect of such forfeited Unvested Non-Exempt Award. Notwithstanding the foregoing, to the extent permitted and in compliance with the requirements of Section 409A, the Board may in its discretion
determine to elect to accelerate the vesting and settlement of the Unvested Non-Exempt Award upon the Corporate Transaction, or instead substitute a cash payment equal to the Fair Market Value of such shares
that would otherwise be issued to the Participant, as further provided in subsection (e)(ii) below. In the absence of such discretionary election by the Board, any Unvested Non-Exempt Award shall be forfeited
without payment of any consideration to the affected Participants if the Acquiring Entity will not assume, substitute or continue the Unvested Non-Exempt Awards in connection with the Corporate Transaction.


  
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 (3) The foregoing treatment shall apply with respect to all Unvested Non-Exempt Awards upon any Corporate Transaction, and regardless of whether or not such Corporate Transaction is also a Section 409A Change in Control. 

(d) Treatment of Non-Exempt Awards Upon a Corporate Transaction for Non-Employee Directors. The following provisions of this subsection (d) shall apply and shall supersede anything to the contrary that may be set forth in the Plan with respect to the permitted treatment of
a Non-Exempt Director Award in connection with a Corporate Transaction. 
 (i) If the
Corporate Transaction is also a Section 409A Change in Control then the Acquiring Entity may not assume, continue or substitute the Non-Exempt Director Award. Upon the Section 409A Change in Control
the vesting and settlement of any Non-Exempt Director Award will automatically be accelerated and the shares will be immediately issued to the Participant in respect of the
Non-Exempt Director Award. Alternatively, the Company may provide that the Participant will instead receive a cash settlement equal to the Fair Market Value of the shares that would otherwise be issued to the
Participant upon the Section 409A Change in Control pursuant to the preceding provision. 
 (ii) If the Corporate Transaction is
not also a Section 409A Change in Control, then the Acquiring Entity must either assume, continue or substitute the Non-Exempt Director Award. Unless otherwise determined by the Board, the Non-Exempt Director Award will remain subject to the same vesting and forfeiture restrictions that were applicable to the Award prior to the Corporate Transaction. The shares to be issued in respect of the Non-Exempt Director Award shall be issued to the Participant by the Acquiring Entity on the same schedule that the shares would have been issued to the Participant if the Corporate Transaction had not occurred. In
the Acquiring Entity’s discretion, in lieu of an issuance of shares, the Acquiring Entity may instead substitute a cash payment on each applicable issuance date, equal to the Fair Market Value of the shares that would otherwise be issued to the
Participant on such issuance dates, with the determination of Fair Market Value made on the date of the Corporate Transaction. 
 (e)
If the RSU Award is a Non-Exempt Award, then the provisions in this Section 11(e) shall apply and supersede anything to the contrary that may be set forth in the Plan or the Award Agreement with respect
to the permitted treatment of such Non-Exempt Award: 
 (i) Any exercise by the Board of
discretion to accelerate the vesting of a Non-Exempt Award shall not result in any acceleration of the scheduled issuance dates for the shares in respect of the
Non-Exempt Award unless earlier issuance of the shares upon the applicable vesting dates would be in compliance with the requirements of Section 409A. 

(ii) The Company explicitly reserves the right to earlier settle any Non-Exempt Award to the
extent permitted and in compliance with the requirements of Section 409A, including pursuant to any of the exemptions available in Treasury Regulations Section 1.409A-3(j)(4)(ix). 

(iii) To the extent the terms of any Non-Exempt Award provide that it will be settled upon a
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compliance with the requirements of Section 409A, the Change in Control or Corporate Transaction event triggering settlement must also constitute a Section 409A Change in Control. To
the extent the terms of a Non-Exempt Award provides that it will be settled upon a termination of employment or termination of Continuous Service, to the extent it is required for compliance with the
requirements of Section 409A, the termination event triggering settlement must also constitute a Separation From Service. However, if at the time the shares would otherwise be issued to a Participant in connection with a “separation from
service” such Participant is subject to the distribution limitations contained in Section 409A applicable to “specified employees,” as defined in Section 409A(a)(2)(B)(i) of the Code, such shares shall not be issued before
the date that is six months following the date of the Participant’s Separation From Service, or, if earlier, the date of the Participant’s death that occurs within such six month period. 

(iv) The provisions in this subsection (e) for delivery of the shares in respect of the settlement of a RSU Award that is a Non-Exempt Award are intended to comply with the requirements of Section 409A so that the delivery of the shares to the Participant in respect of such Non-Exempt Award
will not trigger the additional tax imposed under Section 409A, and any ambiguities herein will be so interpreted. 
  

	12.	 SEVERABILITY. 



If all or any part of the Plan or any Award Agreement is declared by any court or governmental authority to be unlawful or invalid, such
unlawfulness or invalidity shall not invalidate any portion of the Plan or such Award Agreement not declared to be unlawful or invalid. Any Section of the Plan or any Award Agreement (or part of such a Section) so declared to be unlawful or invalid
shall, if possible, be construed in a manner which will give effect to the terms of such Section or part of a Section to the fullest extent possible while remaining lawful and valid. 

 

	13.	 TERMINATION OF THE PLAN.



 The Board may suspend or terminate the Plan at any time. No Incentive Share Options may be granted after the tenth
anniversary of the earlier of: (i) the Adoption Date, or (ii) the date the Plan is approved by the Company’s shareholders. No Awards may be granted under the Plan while the Plan is suspended or after it is terminated. 

  
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	14.	 DEFINITIONS. 



As used in the Plan, the following definitions apply to the capitalized terms indicated below: 

(a) “Acquiring Entity” means the surviving or acquiring corporation (or its parent company) in connection with
a Corporate Transaction. 
 (b) “Adoption Date” means the date the Plan is first approved by the Board or
Compensation Committee. 
 (c) “Affiliate” means, at the time of determination, any “parent” or
“subsidiary” of the Company as such terms are defined in Rule 405 promulgated under the Securities Act. The Board may determine the time or times at which “parent” or “subsidiary” status is determined within the
foregoing definition. 
 (d) “Applicable Law” means shall mean any applicable securities, federal, state,
foreign, material local or municipal or other law, statute, constitution, principle of common law, resolution, ordinance, code, edict, decree, rule, listing rule, regulation, judicial decision, ruling or requirement issued, enacted, adopted,
promulgated, implemented or otherwise put into effect by or under the authority of any Governmental Body (including under the authority of any applicable self-regulating organization such as the Nasdaq Stock Market, New York Stock Exchange, or the
Financial Industry Regulatory Authority). 
 (e) “Award” means any right to receive Ordinary Shares, cash or
other property granted under the Plan (including an Incentive Share Option, a Nonstatutory Share Option, a Restricted Share Award, a RSU Award, a SAR, a Performance Award or any Other Award). 

(f) “Award Agreement” means a written agreement between the Company and a Participant evidencing the terms and
conditions of an Award. The Award Agreement generally consists of the Grant Notice and the agreement containing the written summary of the general terms and conditions applicable to the Award and which is provided to a Participant along with the
Grant Notice. 
 (g) “Board” means the Board of Directors of the Company (or its designee). Any decision or
determination made by the Board shall be a decision or determination that is made in the sole discretion of the Board (or its designee), and such decision or determination shall be final and binding on all Participants. 

(h)“Capitalization Adjustment” means any change that is made in, or other events that occur with respect
to, the Ordinary Shares subject to the Plan or subject to any Award after the Effective Date without the receipt of consideration by the Company through merger, consolidation, reorganization, recapitalization, reincorporation, share dividend,
dividend in property other than cash, large nonrecurring cash dividend, share split, share sub-division, share consolidation, reverse stock split, liquidating dividend, combination of shares, exchange of
shares, change in corporate structure or any similar equity restructuring transaction, as that term is used in Statement of Financial Accounting Standards Board Accounting Standards Codification Topic 718 (or any successor thereto). Notwithstanding
the foregoing, the conversion of any convertible securities of the Company will not be treated as a Capitalization Adjustment. 

  
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 (i) “Cause” has the meaning ascribed to such
term in any written agreement between the Participant and the Company defining such term and, in the absence of such agreement, such term means, with respect to a Participant, the occurrence of any of the following events: (i) such
Participant’s attempted commission of, or participation in, a fraud or act of dishonesty against the Company; (ii) such Participant’s intentional, material violation of any contract or agreement between the Participant and the Company
or of any statutory duty owed to the Company; (iii) such Participant’s unauthorized use or disclosure of the Company’s confidential information or trade secrets; or (iv) such Participant’s gross or willful misconduct. The
determination that a termination of the Participant’s Continuous Service is either for Cause or without Cause will be made by the Board with respect to Participants who are executive officers of the Company and by the Company’s Chief
Executive Officer with respect to Participants who are not executive officers of the Company. Any determination by the Company that the Continuous Service of a Participant was terminated with or without Cause for the purposes of outstanding Awards
held by such Participant will have no effect upon any determination of the rights or obligations of the Company or such Participant for any other purpose. 

(j) “Change in Control” or “Change of Control” means the occurrence, in a single
transaction or in a series of related transactions, of any one or more of the following events; provided, however, to the extent necessary to avoid adverse personal income tax consequences to the Participant in connection with an Award, also
constitutes a Section 409A Change in Control: 
 (i) any Exchange Act Person becomes the Owner, directly or indirectly, of
securities of the Company representing more than 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 (A) on account of the acquisition of securities of the Company directly from the Company, (B) on account of the acquisition of securities of the Company by an investor, any affiliate thereof or any
other Exchange Act Person that acquires the Company’s securities in a transaction or series of related transactions the primary purpose of which is to obtain financing for the Company through the issuance of equity securities, or
(C) 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; 
 (ii) there is
consummated a merger, consolidation or similar transaction involving (directly or indirectly) the Company and, immediately after the consummation of such merger, consolidation or similar transaction, the shareholders of the Company immediately prior
thereto do not Own, directly or indirectly, either (A) outstanding voting securities 

  
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representing more than 50% of the combined outstanding voting power of the surviving Entity in such merger, consolidation or similar transaction or (B) more than 50% of the combined
outstanding voting power of the parent of the surviving Entity in such merger, consolidation or similar transaction, in each case in substantially the same proportions as their Ownership of the outstanding voting securities of the Company
immediately prior to such transaction; 
 (iii) there is consummated a sale, lease, exclusive 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 50% of the combined voting power of the voting securities of which are Owned by shareholders of the Company in substantially the same proportions as their Ownership of the outstanding voting securities of the Company immediately prior to such
sale, lease, license or other disposition; or 
 (iv) individuals who, on the date the Plan is adopted by the Board, are members of
the Board (the “Incumbent Board”) cease for any reason to constitute at least a majority of the members of the Board; provided, however, that if the appointment or election (or nomination for election) of any new Board member
was approved or recommended by a majority vote of the members of the Incumbent Board then still in office, such new member shall, for purposes of this Plan, be considered as a member of the Incumbent Board. 

Notwithstanding the foregoing or any other provision of this Plan, (A) 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, and (B) 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 Awards subject to such agreement; provided, 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. 
 (k) “Code” means the Internal Revenue Code of 1986, as
amended, including any applicable regulations and guidance thereunder. 
 (l) “Committee” means the
Compensation Committee and any other committee of Directors to whom authority has been delegated by the Board or Compensation Committee in accordance with the Plan. 

(m) “Company” means Ambrx Biopharma Inc., a Cayman Islands exempted company. 

(n) “Compensation Committee” means the Compensation Committee of the Board. 

(o) “Consultant” means any person, including an advisor, who is (i) engaged by the Company or an Affiliate
to render consulting or advisory services and is compensated for such services, or (ii) serving as a member of the board of directors of an Affiliate and is compensated for such services. However, service solely as a Director, or payment of a
fee for such service, will not cause a Director to be considered a “Consultant” for purposes of the Plan. Notwithstanding the foregoing, a person is treated as a Consultant under this Plan only if a Form
S-8 Registration Statement under the Securities Act is available to register either the offer or the sale of the Company’s securities to such person. 

  
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 (p) “Continuous Service” means that the Participant’s
service with the Company or an Affiliate, whether as an Employee, Director or Consultant, is not interrupted or terminated. A change in the capacity in which the Participant renders service to the Company or an Affiliate as an Employee, Director or
Consultant or a change in the Entity for which the Participant renders such service, provided that there is no interruption or termination of the Participant’s service with the Company or an Affiliate, will not terminate a Participant’s
Continuous Service; provided, however, that if the Entity for which a Participant is rendering services ceases to qualify as an Affiliate, as determined by the Board, such Participant’s Continuous Service will be considered to
have terminated on the date such Entity ceases to qualify as an Affiliate. For example, a change in status from an Employee of the Company to a Consultant of an Affiliate or to a Director will not constitute an interruption of Continuous Service. To
the extent permitted by law, the Board or the chief executive officer of the Company, in that party’s sole discretion, may determine whether Continuous Service will be considered interrupted in the case of (i) any leave of absence approved
by the Board or chief executive officer, including sick leave, military leave or any other personal leave, or (ii) transfers between the Company, an Affiliate, or their successors. Notwithstanding the foregoing, a leave of absence will be
treated as Continuous Service for purposes of vesting in an Award only to such extent as may be provided in the Company’s leave of absence policy, in the written terms of any leave of absence agreement or policy applicable to the Participant,
or as otherwise required by law. In addition, to the extent required for exemption from or compliance with Section 409A, the determination of whether there has been a termination of Continuous Service will be made, and such term will be
construed, in a manner that is consistent with the definition of “separation from service” as defined under Treasury Regulation Section 1.409A-1(h) (without regard to any alternative definition
thereunder). 
 (q) “Corporate Transaction” means the consummation, in a single transaction or in a series of
related transactions, of any one or more of the following events: 
 (i) a sale or other disposition of all or substantially
all, as determined by the Board, of the consolidated assets of the Company and its Subsidiaries; 
 (ii) a sale or other disposition
of at least 50% of the outstanding securities of the Company; 
 (iii) a merger, consolidation or similar transaction following which
the Company is not the surviving corporation; or 
 (iv) a merger, consolidation or similar transaction following which the Company
is the surviving corporation but the Ordinary Shares outstanding immediately preceding the merger, consolidation or similar transaction are converted or exchanged by virtue of the merger, consolidation or similar transaction into other property,
whether in the form of securities, cash or otherwise. 
 (r) “Director” means a member of the Board. 

  
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 (s) “determine” or
“determined” means as determined by the Board or the Committee (or its designee) in its sole discretion. 

(t) “Disability” means, with respect to a Participant, such Participant is unable to engage in any substantial
gainful activity by reason of any medically determinable physical or mental impairment which can be expected to result in death or which has lasted or can be expected to last for a continuous period of not less than 12 months, as provided in
Section 22(e)(3) of the Code, and will be determined by the Board on the basis of such medical evidence as the Board deems warranted under the circumstances. 

(u) “Effective Date” means immediately prior to the IPO Date, provided this Plan is approved by the
Company’s shareholders prior to the IPO Date. 
 (v) “Employee” means any person employed by the Company
or an Affiliate. However, service solely as a Director, or payment of a fee for such services, will not cause a Director to be considered an “Employee” for purposes of the Plan. 

(w) “Employer” means the Company or the Affiliate of the Company that employs the Participant. 

(x) “Entity” means a corporation, partnership, limited liability company or other entity. 

(y) “Exchange Act” means the Securities Exchange Act of 1934, as amended, and the rules and regulations
promulgated thereunder. 
 (z) “Exchange Act Person” means any natural person, Entity or
“group” (within the meaning of Section 13(d) or 14(d) of the Exchange Act), except that “Exchange Act Person” will not include (i) the Company or any Subsidiary of the Company, (ii) any employee benefit plan of the
Company or any Subsidiary of the Company or any trustee or other fiduciary holding securities under an employee benefit plan of the Company or any Subsidiary of the Company, (iii) an underwriter temporarily holding securities pursuant to a
registered public offering of such securities, (iv) an Entity Owned, directly or indirectly, by the shareholders of the Company in substantially the same proportions as their Ownership of shares of the Company; or (v) any natural person,
Entity or “group” (within the meaning of Section 13(d) or 14(d) of the Exchange Act) that, as of the Effective Date, is the Owner, directly or indirectly, of securities of the Company representing more than 50% of the combined voting
power of the Company’s then outstanding securities. 
 (aa) “Fair Market Value” means, as of any date,
unless otherwise determined by the Board, the value of the Ordinary Shares (as determined on a per share or aggregate basis, as applicable) determined as follows: 

(i) If the Ordinary Shares are listed on any established stock exchange or traded on any established market, the Fair Market Value will
be the closing sales price for such Ordinary Shares as quoted on such exchange or market (or the exchange or market with the greatest volume of trading in the Ordinary Shares) on the date of determination, as reported in a source the Board deems
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 (ii) If there is no closing sales price for the Ordinary Shares on the date of
determination, then the Fair Market Value will be the closing selling price on the last preceding date for which such quotation exists. 

(iii) In the absence of such markets for the Ordinary Shares, or if otherwise determined by the Board, the Fair Market Value will be
determined by the Board in good faith and in a manner that complies with Sections 409A and 422 of the Code. 
 (bb)
“Governmental Body” means any: (a) nation, state, commonwealth, province, territory, county, municipality, district or other jurisdiction of any nature; (b) federal, state, local, municipal,
foreign or other government; (c) governmental or regulatory body, or quasi-governmental body of any nature (including any governmental division, department, administrative agency or bureau, commission, authority, instrumentality, official,
ministry, fund, foundation, center, organization, unit, body or Entity and any court or other tribunal, and for the avoidance of doubt, any Tax authority) or other body exercising similar powers or authority; or (d) self-regulatory
organization (including the Nasdaq Stock Market, New York Stock Exchange, and the Financial Industry Regulatory Authority). 
 (cc)
“Grant Notice” means the notice provided to a Participant that he or she has been granted an Award under the Plan and which includes the name of the Participant, the type of Award, the date of grant of the Award, number of
Ordinary Shares subject to the Award or potential cash payment right, (if any), the vesting schedule for the Award (if any) and other key terms applicable to the Award. 

(dd) “Incentive Share Option” means an option granted pursuant to Section 4 of the Plan that is intended
to be, and qualifies as, an “incentive stock option” within the meaning of Section 422 of the Code. 
 (ee)
“IPO Date” means the date of the underwriting agreement between the Company and the underwriter(s) managing the initial public offering of the Ordinary Shares, pursuant to which the Ordinary Shares is priced for the initial
public offering. 
 (ff) “Materially Impair” means any amendment to the terms of the Award that
materially adversely affects the Participant’s rights under the Award. A Participant’s rights under an Award will not be deemed to have been Materially Impaired by any such amendment if the Board, in its sole discretion, determines that
the amendment, taken as a whole, does not materially impair the Participant’s rights. For example, the following types of amendments to the terms of an Award do not Materially Impair the Participant’s rights under the Award:
(i) imposition of reasonable restrictions on the minimum number of shares subject to an Option that may be exercised; (ii) to maintain the qualified status of the Award as an Incentive Share Option under Section 422 of the Code;
(iii) to change the terms of an Incentive Share Option in a manner that disqualifies, impairs or otherwise affects the qualified status of the Award as an Incentive Share Option under Section 422 of the Code; (iv) to clarify the
manner of exemption from, or to bring the Award into compliance with or qualify it for an exemption from, Section 409A; or (v) to comply with other Applicable Laws. 

  
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 (gg) “Non-Employee
Director” means a Director who either (i) is not a current employee or officer of the Company or an Affiliate, does not receive compensation, either directly or indirectly, from the Company or an Affiliate for services
rendered as a consultant or in any capacity other than as a Director (except for an amount as to which disclosure would not be required under Item 404(a) of Regulation S-K promulgated pursuant to the
Securities Act (“Regulation S-K”)), does not possess an interest in any other transaction for which disclosure would be required under Item 404(a) of Regulation S-K, and is not engaged in a business relationship for which disclosure would be required pursuant to Item 404(b) of Regulation S-K; or (ii) is otherwise considered
a “non-employee director” for purposes of Rule 16b-3. 

(hh) “Non-Exempt Award” means any Award that is subject
to, and not exempt from, Section 409A, including as the result of (i) a deferral of the issuance of the shares subject to the Award which is elected by the Participant or imposed by the Company, (ii) the terms of any Non-Exempt Severance Agreement. 
 (ii)
“Non-Exempt Director Award” means a Non-Exempt Award granted to a Participant who was a Director but not an Employee on the applicable grant
date. 
 (jj) “Non-Exempt Severance Arrangement” means a severance
arrangement or other agreement between the Participant and the Company that provides for acceleration of vesting of an Award and issuance of the shares in respect of such Award upon the Participant’s termination of employment or separation from
service (as such term is defined in Section 409A(a)(2)(A)(i) of the Code (and without regard to any alternative definition thereunder) (“Separation from Service”) and such severance benefit does not satisfy the
requirements for an exemption from application of Section 409A provided under Treasury Regulations Section 1.409A-1(b)(4), 1.409A-1(b)(9) or otherwise. 

(kk) “Nonstatutory Share Option” means any option granted pursuant to Section 4 of the Plan that does not
qualify as an Incentive Share Option. 
 (ll) “Officer” means a person who is an officer of the Company
within the meaning of Section 16 of the Exchange Act. 
 (mm) “Option” means an Incentive Share Option
or a Nonstatutory Share Option to purchase Ordinary Shares granted pursuant to the Plan. 
 (nn) “Option
Agreement” means a written agreement between the Company and the Optionholder evidencing the terms and conditions of the Option grant. The Option Agreement includes the Grant Notice for the Option and the agreement containing the
written summary of the general terms and conditions applicable to the Option and which is provided to a Participant along with the Grant Notice. Each Option Agreement will be subject to the terms and conditions of the Plan. 

(oo) “Optionholder” means a person to whom an Option is granted pursuant to the Plan or, if applicable, such
other person who holds an outstanding Option. 
 (pp) “Ordinary Shares” means the ordinary shares of the
Company. 

  
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 (qq) “Other Award” means an award based in whole or in part
by reference to the Ordinary Shares which is granted pursuant to the terms and conditions of Section 5(c). 
 (rr)
“Other Award Agreement” means a written agreement between the Company and a holder of an Other Award evidencing the terms and conditions of an Other Award grant. Each Other Award Agreement will be subject to the
terms and conditions of the Plan. 
 (ss) “Own,” “Owned,”
“Owner,” “Ownership” means that a person or Entity will be deemed to “Own,” to have “Owned,” to be the “Owner” of, or to have acquired
“Ownership” of securities if such person or Entity, directly or indirectly, through any contract, arrangement, understanding, relationship or otherwise, has or shares voting power, which includes the power to vote or to direct the voting,
with respect to such securities. 
 (tt) “Participant” means an Employee, Director or Consultant to whom an
Award is granted pursuant to the Plan or, if applicable, such other person who holds an outstanding Award. 
 (uu)
“Performance Award” means an Award that may vest or may be exercised or a cash award that may vest or become earned and paid contingent upon the attainment during a Performance Period of certain Performance Goals and which is
granted under the terms and conditions of Section 5(b) pursuant to such terms as are approved by the Board. In addition, to the extent permitted by Applicable Law and set forth in the applicable Award Agreement, the Board may determine that
cash or other property may be used in payment of Performance Awards. Performance Awards that are settled in cash or other property are not required to be valued in whole or in part by reference to, or otherwise based on, the Ordinary Shares. 

(vv) “Performance Criteria” means the one or more criteria that the Board will select for purposes of
establishing the Performance Goals for a Performance Period. The Performance Criteria that will be used to establish such Performance Goals may be based on any measure of performance selected by the Board. 

(ww) “Performance Goals” means, for a Performance Period, the one or more goals established by the Board for
the Performance Period based upon the Performance Criteria. Performance Goals may be based on a Company-wide basis, with respect to one or more business units, divisions, Affiliates, or business segments, and in either absolute terms or relative to
the performance of one or more comparable companies or the performance of one or more relevant indices. Unless specified otherwise by the Board (i) in the Award Agreement at the time the Award is granted or (ii) in such other document
setting forth the Performance Goals at the time the Performance Goals are established, the Board will appropriately make adjustments in the method of calculating the attainment of Performance Goals for a Performance Period as follows: (1) to
exclude restructuring and/or other nonrecurring charges; (2) to exclude exchange rate effects; (3) to exclude the effects of changes to generally accepted accounting principles; (4) to exclude the effects of any statutory adjustments
to corporate tax rates; (5) to exclude the effects of items that are “unusual” in nature or occur “infrequently” as determined under generally accepted accounting principles; (6) to exclude the dilutive effects of
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joint ventures; (7) to assume that any business divested by the Company achieved performance objectives at targeted levels during the balance of a Performance Period following such
divestiture; (8) to exclude the effect of any change in the outstanding ordinary shares of the Company by reason of any share dividend or split, share repurchase, reorganization, recapitalization, merger, consolidation, spin-off, combination or exchange of shares or other similar corporate change, or any distributions to ordinary shareholders other than regular cash dividends; (9) to exclude the effects of stock based
compensation and the award of bonuses under the Company’s bonus plans; (10) to exclude costs incurred in connection with potential acquisitions or divestitures that are required to expense under generally accepted accounting principles;
and (11) to exclude the goodwill and intangible asset impairment charges that are required to be recorded under generally accepted accounting principles. In addition, the Board retains the discretion to reduce or eliminate the compensation or
economic benefit due upon attainment of Performance Goals and to define the manner of calculating the Performance Criteria it selects to use for such Performance Period. Partial achievement of the specified criteria may result in the payment or
vesting corresponding to the degree of achievement as specified in the Award Agreement or the written terms of a Performance Cash Award. 

(xx) “Performance Period” means the period of time selected by the Board over which the attainment of one or
more Performance Goals will be measured for the purpose of determining a Participant’s right to vesting or exercise of an Award. Performance Periods may be of varying and overlapping duration, at the sole discretion of the Board. 

(yy) “Plan” means this Ambrx Biopharma Inc. 2021 Equity Incentive Plan, as amended from time to time. 

(zz) “Plan Administrator” means the person, persons, and/or third-party administrator designated by the Company
to administer the day to day operations of the Plan and the Company’s other equity incentive programs. 
 (aaa)
“Post-Termination Exercise Period” means the period following termination of a Participant’s Continuous Service within which an Option or SAR is exercisable, as specified in Section 4(h). 

(bbb) “Prior Plan’s Available Reserve” means the number of shares available for the grant of new awards
under the Prior Plan as of the Effective Date. 
 (ccc) “Prior Plan” means the Ambrx Biopharma Inc. Amended
and Restated 2016 Share Incentive Plan. 
 (ddd) “Prospectus” means the document containing the Plan
information specified in Section 10(a) of the Securities Act. 
 (eee) “Restricted Share Award” or
“RSA” means an Award of Ordinary Shares which is granted pursuant to the terms and conditions of Section 5(a). 

(fff) “Restricted Share Award Agreement” means a written agreement between the Company and a holder of a
Restricted Share Award evidencing the terms and conditions of a Restricted Share Award grant. The Restricted Share Award Agreement includes the Grant 

  
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Notice for the Restricted Share Award and the agreement containing the written summary of the general terms and conditions applicable to the Restricted Share Award and which is provided to a
Participant along with the Grant Notice. Each Restricted Share Award Agreement will be subject to the terms and conditions of the Plan. 

(ggg) “Returning Shares” means shares subject to outstanding share awards granted under the Prior Plan and that
following the Effective Date: (A) are not issued because such share award or any portion thereof expires or otherwise terminates without all of the shares covered by such share award having been issued; (B) are not issued because
such share award or any portion thereof is settled in cash; (C) are forfeited back to or repurchased by the Company because of the failure to meet a contingency or condition required for the vesting of such shares; (D) are
withheld or reacquired to satisfy the exercise, strike or purchase price; or (E) are withheld or reacquired to satisfy a tax withholding obligation. 

(hhh) “RSU Award” or “RSU” means an Award of restricted share units
representing the right to receive an issuance of Ordinary Shares which is granted pursuant to the terms and conditions of Section 5(a). 

(iii) “RSU Award Agreement” means a written agreement between the Company and a holder of a RSU
Award evidencing the terms and conditions of a RSU Award grant. The RSU Award Agreement includes the Grant Notice for the RSU Award and the agreement containing the written summary of the general terms and conditions applicable to the RSU Award and
which is provided to a Participant along with the Grant Notice. Each RSU Award Agreement will be subject to the terms and conditions of the Plan. 

(jjj) “Rule 16b-3” means Rule
16b-3 promulgated under the Exchange Act or any successor to Rule 16b-3, as in effect from time to time. 

(kkk) “Rule 405” means Rule 405 promulgated under the Securities Act. 

(lll) “Section 409A” means Section 409A of the Code and the regulations
and other guidance thereunder. 
 (mmm) “Section 409A Change in Control”
means a change in the ownership or effective control of the Company, or in the ownership of a substantial portion of the Company’s assets, as provided in Section 409A(a)(2)(A)(v) of the Code and Treasury Regulations Section 1.409A-3(i)(5) (without regard to any alternative definition thereunder). 
 (nnn)
“Securities Act” means the Securities Act of 1933, as amended. 
 (ooo) “Share
Reserve” means the number of shares available for issuance under the Plan as set forth in Section 2(a). 
 (ppp)
“Share Appreciation Right” or “SAR” means a right to receive the appreciation on Ordinary Shares that is granted pursuant to the terms and conditions of Section 4. 

(qqq) “SAR Agreement” means a written agreement between the Company and a holder of a SAR evidencing the terms
and conditions of a SAR grant. The SAR Agreement includes the 

  
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Grant Notice for the SAR and the agreement containing the written summary of the general terms and conditions applicable to the SAR and which is provided to a Participant along with the Grant
Notice. Each SAR Agreement will be subject to the terms and conditions of the Plan. 
 (rrr) “Subsidiary”
means, with respect to the Company, (i) any corporation of which more than 50% of the outstanding capital stock having ordinary voting power to elect a majority of the board of directors of such corporation (irrespective of whether, at the
time, stock of any other class or classes of such corporation will have or might have voting power by reason of the happening of any contingency) is at the time, directly or indirectly, Owned by the Company, and (ii) any partnership, limited
liability company or other entity in which the Company has a direct or indirect interest (whether in the form of voting or participation in profits or capital contribution) of more than 50%. 

(sss) “Ten Percent Shareholder” means a person who Owns (or is deemed to Own pursuant to Section 424(d) of
the Code) shares possessing more than 10% of the total combined voting power of all classes of shares of the Company or any Affiliate. 

(ttt) “Trading Policy” means the Company’s policy permitting certain individuals to sell Company shares
only during certain “window” periods and/or otherwise restricts the ability of certain individuals to transfer or encumber Company shares, as in effect from time to time. 

(uuu) “Unvested Non-Exempt Award” means the portion of any Non-Exempt Award that had not vested in accordance with its terms upon or prior to the date of any Corporate Transaction. 

(vvv) “Vested Non-Exempt Award” means the portion of any Non-Exempt Award that had vested in accordance with its terms upon or prior to the date of a Corporate Transaction. 

  
 33. 










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 Standard Stock Option Grant Package 

AMBRX BIOPHARMA INC. 

SHARE OPTION GRANT NOTICE 

(2021 EQUITY INCENTIVE PLAN) 

Ambrx Biopharma Inc. (the “Company”), pursuant to its 2021 Equity Incentive Plan (the “Plan”), has granted to
you (“Optionholder”) an option to purchase the number of the Ordinary Shares set forth below (the “Option”). Your Option is subject to all of the terms and conditions as set forth herein and in the
Plan, and the Share Option Agreement and the Notice of Exercise, all of which are attached hereto and incorporated herein in their entirety. Capitalized terms not explicitly defined herein but defined in the Plan or the Share Option Agreement shall
have the meanings set forth in the Plan or the Share Option Agreement, as applicable. 
  

			
	 Optionholder:
	 	
                   
                     

	 Date of Grant:
	 	
                   
                     

	 Vesting Commencement Date:
	 	
                   
                     

	 Number of Ordinary Shares Subject to Option:
	 	
                   
                     

	 Exercise Price (Per Share):
	 	
                   
                     

	 Total Exercise Price:
	 	
                   
                     

	 Expiration Date:
	 	
                   
                     


  

			
	Type of Grant:	  	[Incentive Share Option] OR [Nonstatutory Share Option]
		
	 Exercise and

Vesting Schedule:
	  	Subject to the Optionholder’s Continuous Service through each applicable vesting date, the Option will vest as follows:

 Optionholder Acknowledgements: By your signature below or by electronic acceptance or authentication in a form
authorized by the Company, you understand and agree that: 
  

	 	•	 	 The Option is governed by this Share Option Grant Notice, and the provisions of the Plan and the Share Option
Agreement and the Notice of Exercise, all of which are made a part of this document. Unless otherwise provided in the Plan, this Grant Notice and the Share Option Agreement (together, the “Option Agreement”) may not be
modified, amended or revised except in a writing signed by you and a duly authorized officer of the Company. 


  

	 	•	 	 [If the Option is an Incentive Share Option, it (plus other outstanding Incentive Share Options granted to you)
cannot be first exercisable for more than $100,000 in value (measured by exercise price) in any calendar year. Any excess over $100,000 is a Nonstatutory Share Option.] 



 

	 	•	 	 You consent to receive this Grant Notice, the Share Option Agreement, the Plan, the Prospectus and any other
Plan-related documents by electronic delivery and to participate in the Plan through an on-line or electronic system established and maintained by the Company or another third party designated by the Company.



  

	 	•	 	 You have read and are familiar with the provisions of the Plan, the Share Option Agreement, the Notice of
Exercise and the Prospectus. In the event of any conflict between the provisions in this Grant Notice, the Option Agreement, the Notice of Exercise, or the Prospectus and the terms of the Plan, the terms of the Plan shall control.



  

	 	•	 	 The Option Agreement sets forth the entire understanding between you and the Company regarding the acquisition of
Ordinary Shares and supersedes all prior oral and written agreements, promises and/or 











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 Standard Stock Option Grant Package 

 

	 	representations on that subject with the exception of other equity awards previously granted to you and any written employment agreement, offer letter, severance agreement, written severance plan or policy, or other written
agreement between the Company and you in each case that specifies the terms that should govern this Option. 

  

	 	•	 	 Counterparts may be delivered via facsimile, electronic mail (including pdf or any electronic signature complying
with the U.S. federal ESIGN Act of 2000, Uniform Electronic Transactions Act or other applicable law) or other transmission method and any counterpart so delivered will be deemed to have been duly and validly delivered and be valid and effective for
all purposes. 


  

											
	AMBRX BIOPHARMA INC.	 		 		 	OPTIONHOLDER:
					
	By:	 	  
	 		 		 	  

		 	Signature	 		 		 		 	Signature
						
	Title:	 	  
	 		 		 	Date:	 	  

						
	Date:	 	  
	 		 		 		 	

 ATTACHMENTS: Share Option Agreement, 2021 Equity Incentive Plan, Notice of Exercise 









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 Standard Stock Option Grant Package 

 
 ATTACHMENT I 

SHARE OPTION AGREEMENT 









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 Standard Stock Option Grant Package 

 
 AMBRX BIOPHARMA INC.

 2021 EQUITY INCENTIVE PLAN 

SHARE OPTION AGREEMENT 

As reflected by your Share Option Grant Notice (“Grant Notice”), Ambrx Biopharma Inc. (the
“Company”) has granted you an option under its 2021 Equity Incentive Plan (the “Plan”) to purchase a number of Ordinary Shares at the exercise price indicated in your Grant Notice (the
“Option”). Capitalized terms not explicitly defined in this Agreement but defined in the Grant Notice or the Plan shall have the meanings set forth in the Grant Notice or Plan, as applicable. The terms of your Option as
specified in the Grant Notice and this Stock Option Agreement constitute your Option Agreement. 
 The general terms and conditions
applicable to your Option are as follows: 
 1. GOVERNING PLAN DOCUMENT. Your
Option is subject to all the provisions of the Plan, including but not limited to the provisions in: 
 (a) Section 6 regarding the
impact of a Capitalization Adjustment, dissolution, liquidation, or Corporate Transaction on your Option; 
 (b) Section 9(e)
regarding the Company’s retained rights to terminate your Continuous Service notwithstanding the grant of the Option; and 
 (c)
Section 8 regarding the tax consequences of your Option. 
 Your Option is further subject to all interpretations, amendments, rules and regulations, which
may from time to time be promulgated and adopted pursuant to the Plan. In the event of any conflict between the Option Agreement and the provisions of the Plan, the provisions of the Plan shall control. 

2. VESTING. Subject to the provisions contained herein, your Option will vest as provided in your Grant Notice.
Vesting will cease upon the termination of your Continuous Service.1 
 3.
EXERCISE. 
 (a) You may generally exercise the vested portion of your Option for whole Ordinary Shares at any
time during its term by delivery of payment of the exercise price and applicable withholding taxes and other required documentation to the Plan Administrator in accordance with the exercise procedures established by the Plan Administrator, which may
include an electronic submission. Please review Sections 4(i), 4(j) and 7(b)(v) of the Plan, which may restrict or prohibit your ability to exercise your Option during certain periods. 

 

	1 	 Company to confirm whether to include double trigger vesting acceleration. 











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 Standard Stock Option Grant Package 

 
 (b) To the extent permitted by Applicable Law, you may pay your
Option exercise price as follows: 
 (i) cash, check, bank draft or money order; 

(ii) subject to Company and/or Committee consent at the time of exercise, pursuant to a “cashless exercise” program as
further described in Section 4(c)(ii) of the Plan if at the time of exercise the Ordinary Shares is publicly traded; 
 (iii)
subject to Company and/or Committee consent at the time of exercise, by delivery (and repurchase by the Company) of previously owned Ordinary Shares as further described in Section 4(c)(iii) of the Plan; or 

(iv) subject to Company and/or Committee consent at the time of exercise, if the Option is a Nonstatutory Share Option, by a “net
exercise” arrangement as further described in Section 4(c)(iv) of the Plan. 
 (c) By accepting your Option, you agree that
you will not sell, dispose of, transfer, make any short sale of, grant any option for the purchase of, or enter into any hedging or similar transaction with the same economic effect as a sale with respect to any Ordinary Shares or other securities
of the Company held by you, for a period of one hundred eighty (180) days following the effective date of a registration statement of the Company filed under the Securities Act or such longer period as the underwriters or the Company will
request to facilitate compliance with FINRA Rule 2241 or any successor or similar rules or regulation (the “Lock-Up Period”); provided, however, that nothing contained in
this section will prevent the exercise of a repurchase option, if any, in favor of the Company during the Lock-Up Period. You further agree to execute and deliver such other agreements as may be reasonably
requested by the Company or the underwriters that are consistent with the foregoing or that are necessary to give further effect thereto. In order to enforce the foregoing covenant, the Company may impose stop-transfer instructions with respect to
your Ordinary Shares until the end of such period. You also agree that any transferee of any Ordinary Shares (or other securities) of the Company held by you will be bound by this Section 3(c). The underwriters of the Company’s shares are
intended third party beneficiaries of this Section 3(c) and will have the right, power and authority to enforce the provisions hereof as though they were a party hereto. 

4. TERM. You may not exercise your Option before the commencement of its term or after its term expires. The term
of your Option commences on the Date of Grant and expires upon the earliest of the following: 
 (a) immediately upon the termination
of your Continuous Service for Cause; 
 (b) three months after the termination of your Continuous Service for any reason other than
Cause, Disability or death; 
 (c) 12 months after the termination of your Continuous Service due to your Disability; 

(d) 18 months after your death if you die during your Continuous Service; 









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 Standard Stock Option Grant Package 

 
 (e) immediately upon a Corporate Transaction if the Board has
determined that the Option will terminate in connection with a Corporate Transaction, 
 (f) the Expiration Date indicated in your
Grant Notice; or 
 (g) the day before the 10th anniversary of the Date of Grant. 

Notwithstanding the foregoing, if you die during the period provided in Section 4(b) or 4(c) above, the term of your Option shall not
expire until the earlier of (i) 18 months after your death, (ii) upon any termination of the Option in connection with a Corporate Transaction, (iii) the Expiration Date indicated in your Grant Notice, or (iv) the day before the tenth
anniversary of the Date of Grant. Additionally, the Post-Termination Exercise Period of your Option may be extended as provided in Section 4(i) of the Plan. 

To obtain the federal income tax advantages associated with an Incentive Share Option, the Code requires that at all times beginning on the
date of grant of your Option and ending on the day three months before the date of your Option’s exercise, you must be an employee of the Company or an Affiliate, except in the event of your death or Disability. If the Company provides for the
extended exercisability of your Option under certain circumstances for your benefit, your Option will not necessarily be treated as an Incentive Share Option if you exercise your Option more than three months after the date your employment
terminates. 
 5. WITHHOLDING OBLIGATIONS. As further provided in Section 8 of the Plan:
(a) you may not exercise your Option unless the applicable tax withholding obligations are satisfied, and (b) at the time you exercise your Option, in whole or in part, or at any time thereafter as requested by the Company, you hereby
authorize withholding from payroll and any other amounts payable to you, and otherwise agree to make adequate provision for (including by means of a “cashless exercise” pursuant to a program developed under Regulation T as promulgated by
the Federal Reserve Board to the extent permitted by the Company), any sums required to satisfy the federal, state, local and foreign tax withholding obligations, if any, which arise in connection with the exercise of your Option in accordance with
the withholding procedures established by the Company. Accordingly, you may not be able to exercise your Option even though the Option is vested, and the Company shall have no obligation to issue Ordinary Shares subject to your Option, unless and
until such obligations are satisfied. In the event that the amount of the Company’s withholding obligation in connection with your Option was greater than the amount actually withheld by the Company, you agree to indemnify and hold the Company
harmless from any failure by the Company to withhold the proper amount. 
 6. INCENTIVE SHARE
OPTION DISPOSITION REQUIREMENT. If your Option is an Incentive Share Option, you must notify the Company in writing within 15 days after the date of any disposition of any of the Ordinary Shares
issued upon exercise of your Option that occurs within two years after the date of your Option grant or within one year after such Ordinary Shares are transferred upon exercise of your Option. 

7. TRANSFERABILITY. Except as otherwise provided in Section 4(e) of the Plan, your Option is not
transferable, except by will or by the applicable laws of descent and distribution, and is exercisable during your life only by you. 









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 Standard Stock Option Grant Package 

 
 8. CORPORATE TRANSACTION.
Your Option is subject to the terms of any agreement governing a Corporate Transaction involving the Company, including, without limitation, a provision for the appointment of a shareholder representative that is authorized to act on your behalf
with respect to any escrow, indemnities and any contingent consideration. 
 9. NO LIABILITY
FOR TAXES. As a condition to accepting the Option, you hereby (a) agree to not make any claim against the Company, or any of its Officers, Directors, Employees or Affiliates related
to tax liabilities arising from the Option or other Company compensation and (b) acknowledge that you were advised to consult with your own personal tax, financial and other legal advisors regarding the tax consequences of the Option and have
either done so or knowingly and voluntarily declined to do so. Additionally, you acknowledge that the Option is exempt from Section 409A only if the exercise price is at least equal to the “fair market value” of the Ordinary Shares on
the date of grant as determined by the Internal Revenue Service and there is no other impermissible deferral of compensation associated with the Option. Additionally, as a condition to accepting the Option, you agree not make any claim against the
Company, or any of its Officers, Directors, Employees or Affiliates in the event that the Internal Revenue Service asserts that such exercise is less than the “fair market value” of the Ordinary Shares on the date of grant as subsequently
determined by the Internal Revenue Service. 
 10. SEVERABILITY. If any part of
this Option Agreement or the Plan is declared by any court or governmental authority to be unlawful or invalid, such unlawfulness or invalidity will not invalidate any portion of this Option Agreement or the Plan not declared to be unlawful or
invalid. Any Section of this Option Agreement (or part of such a Section) so declared to be unlawful or invalid will, if possible, be construed in a manner which will give effect to the terms of such Section or part of a Section to the fullest
extent possible while remaining lawful and valid 
 11. OTHER DOCUMENTS. You hereby
acknowledge receipt of or the right to receive a document providing the information required by Rule 428(b)(1) promulgated under the Securities Act, which includes the Prospectus. In addition, you acknowledge receipt of the Company’s
Trading Policy. 
 12. QUESTIONS. If you have questions regarding these or any other terms and conditions
applicable to your Option, including a summary of the applicable federal income tax consequences please see the Prospectus. 
 * * * *










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 Standard Stock Option Grant Package 

 
 ATTACHMENT II 

2021 EQUITY INCENTIVE PLAN 









Table of Contents




 Standard Stock Option Grant Package 

 
 ATTACHMENT III 

NOTICE OF EXERCISE 









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 Standard Stock Option Grant Package 

 
 AMBRX BIOPHARMA INC.

 (2021 EQUITY INCENTIVE PLAN) 

NOTICE OF EXERCISE 
  

			
	 AMBRX BIOPHARMA INC.

10975 North Torrey Pines Road
 La Jolla, CA 92037
	  	Date of Exercise:                     

 This constitutes notice to Ambrx Biopharma Inc. (the “Company”) that I elect to
purchase the below number of Ordinary Shares of the Company (the “Shares”) by exercising my Option for the price set forth below. Capitalized terms not explicitly defined in this Notice of Exercise but defined in the
Grant Notice, Option Agreement or 2021 Equity Incentive Plan (the “Plan”) shall have the meanings set forth in the Grant Notice, Option Agreement or Plan, as applicable. Use of certain payment methods is subject to Company
and/or Committee consent and certain additional requirements set forth in the Option Agreement and the Plan. 
  

					
	Type of option (check one):	  	Incentive ☐	  	Nonstatutory ☐
			
	Date of Grant:	  	                        	  	
			
	Number of Shares as to which Option is exercised:	  	                        	  	
			
	Certificates to be issued in name of:	  	                        	  	
			
	Total exercise price:	  	$                      	  	
			
	 Cash, check, bank draft or money order delivered herewith:
	  	$                      	  	
			
	 Value of
                     Shares delivered herewith:
	  	$                      	  	
			
	 Regulation T Program (cashless exercise)
	  	$                      	  	
			
	 Value of
                     Shares pursuant to net exercise:
	  	$                      	  	

 By this exercise, I agree (i) to provide such additional documents as you may require pursuant to the
terms of the Plan, (ii) to satisfy the tax withholding obligations, if any, relating to 









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 Standard Stock Option Grant Package 

 
 the exercise of this Option as set forth in the Option Agreement, and (iii) if this
exercise relates to an incentive share option, to notify you in writing within 15 days after the date of any disposition of any of the Shares issued upon exercise of this Option that occurs within two years after the Date of Grant or within one year
after such Shares are issued upon exercise of this Option. 
 I further agree that, if required by the Company (or a representative of the
underwriters) in connection with the first underwritten registration of the offering of any securities of the Company under the Securities Act, I will not sell, dispose of, transfer, make any short sale of, grant any option for the purchase of, or
enter into any hedging or similar transaction with the same economic effect as a sale with respect to any shares of Ordinary Shares or other securities of the Company for a period of one hundred eighty (180) days following the effective date of
a registration statement of the Company filed under the Securities Act (or such longer period as the underwriters or the Company shall request to facilitate compliance with FINRA Rule 2241 or any successor or similar rule or regulation) (the
“Lock-Up Period”). I further agree to execute and deliver such other agreements as may be reasonably requested by the Company or the underwriters that are consistent with the foregoing
or that are necessary to give further effect thereto. In order to enforce the foregoing covenant, the Company may impose stop-transfer instructions with respect to securities subject to the foregoing
restrictions until the end of such period. 
  

	
	Very truly yours,
	
	  












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 AMBRX BIOPHARMA INC. 

RSU AWARD GRANT NOTICE 

(2021 EQUITY INCENTIVE PLAN) 

Ambrx Biopharma Inc. (the “Company”) has awarded to you (the “Participant”) the number of restricted share
units specified and on the terms set forth below in consideration of your services (the “RSU Award”). Your RSU Award is subject to all of the terms and conditions as set forth herein and in the Company’s 2021 Equity
Incentive Plan (the “Plan”) and the Award Agreement (the “Agreement”), which are attached hereto and incorporated herein in their entirety. Capitalized terms not explicitly defined herein but defined
in the Plan or the Agreement shall have the meanings set forth in the Plan or the Agreement. 
  

			
	Participant:	 	 
	Date of Grant:	 	 
	Vesting Commencement Date:	 	 
	Number of Restricted Stock Units:	 	 

  

			
	Vesting Schedule:	  	[                                     
                                         
                                         
                                     ]. 
		  	Notwithstanding the foregoing, vesting shall terminate upon the Participant’s termination of Continuous Service.
		
	Issuance Schedule:	  	One share of Ordinary Shares will be issued for each restricted share unit which vests at the time set forth in Section 5 of the Agreement.

 Participant Acknowledgements: By your signature below or by electronic acceptance or authentication in a form
authorized by the Company, you understand and agree that: 
  

	 	•	 	 The RSU Award is governed by this RSU Award Grant Notice (the “Grant Notice”), and the
provisions of the Plan and the Agreement, all of which are made a part of this document. Unless otherwise provided in the Plan, this Grant Notice and the Agreement (together, the “RSU Award Agreement”) may not be modified,
amended or revised except in a writing signed by you and a duly authorized officer of the Company. 


  

	 	•	 	 You have read and are familiar with the provisions of the Plan, the RSU Award Agreement and the Prospectus. In
the event of any conflict between the provisions in the RSU Award Agreement, or the Prospectus and the terms of the Plan, the terms of the Plan shall control. 



 

	 	•	 	 The RSU Award Agreement sets forth the entire understanding between you and the Company regarding the acquisition
of Ordinary Shares and supersedes all prior oral and written agreements, promises and/or representations on that subject with the exception of: (i) other equity awards previously granted to you, and (ii) any written employment agreement,
offer letter, severance agreement, written severance plan or policy, or other written agreement between the Company and you in each case that specifies the terms that should govern this RSU Award. 



 

									
	AMBRX BIOPHARMA INC.	 		 	PARTICIPANT:
				
	By:	 	  
	 		 	  

		 	Signature	 		 		 	Signature
					
	Title:	 	  
	 		 	Date:	 	  

					
	 Date:
	 	  
	 		 		 	










Table of Contents





			
	ATTACHMENTS:	  	RSU Award Agreement, 2021 Equity Incentive Plan


  
 1 










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 AMBRX BIOPHARMA INC. 

2021 EQUITY INCENTIVE PLAN 

AWARD AGREEMENT (RSU AWARD) 

As reflected by your Restricted Stock Unit Grant Notice (“Grant Notice”), Ambrx Biopharma Inc. (the
“Company”) has granted you a RSU Award under its 2021 Equity Incentive Plan (the “Plan”) for the number of restricted share units as indicated in your Grant Notice (the “RSU
Award”). The terms of your RSU Award as specified in this Award Agreement for your RSU Award (the “Agreement”) and the Grant Notice constitute your “RSU Award Agreement”. Defined terms not
explicitly defined in this Agreement but defined in the Grant Notice or the Plan shall have the same definitions as in the Grant Notice or Plan, as applicable. 

The general terms applicable to your RSU Award are as follows: 

1. GOVERNING PLAN DOCUMENT. Your RSU Award is subject to all the provisions of the
Plan, including but not limited to the provisions in: 
 (a) Section 6 of the Plan regarding the impact of a Capitalization
Adjustment, dissolution, liquidation, or Corporate Transaction on your RSU Award; 
 (b) Section 9(e) of the Plan regarding the
Company’s retained rights to terminate your Continuous Service notwithstanding the grant of the RSU Award; and 
 (c) Section 8
of the Plan regarding the tax consequences of your RSU Award. 
 Your RSU Award is further subject to all interpretations, amendments, rules and
regulations, which may from time to time be promulgated and adopted pursuant to the Plan. In the event of any conflict between the RSU Award Agreement and the provisions of the Plan, the provisions of the Plan shall control. 

2. GRANT OF THE RSU AWARD. This RSU Award represents your right to
be issued on a future date the number of the Company’s Ordinary Shares that is equal to the number of restricted share units indicated in the Grant Notice as modified to reflect any Capitalization Adjustment and subject to your satisfaction of
the vesting conditions set forth therein (the “Restricted Stock Units”). Any additional Restricted Stock Units that become subject to the RSU Award pursuant to Capitalization Adjustments as set forth in the Plan and the
provisions of Section 3 below, if any, shall be subject, in a manner determined by the Board, to the same forfeiture restrictions, restrictions on transferability, and time and manner of delivery as applicable to the other Restricted Stock
Units covered by your RSU Award. 
 3. DIVIDENDS. You shall receive no benefit or adjustment to your RSU
Award with respect to any cash dividend, share dividend or other distribution that does not result from a Capitalization Adjustment as provided in the Plan; provided, however, that this sentence shall not apply with respect to any Ordinary Shares
that are delivered to you in connection with your RSU Award after such shares have been delivered to you. 

  
 1. 










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 4. WITHHOLDING OBLIGATIONS. As further
provided in Section 8 of the Plan, you hereby authorize withholding from payroll and any other amounts payable to you, and otherwise agree to make adequate provision for, any sums required to satisfy the federal, state, local and foreign tax
withholding obligations, if any, which arise in connection with your RSU Award (the “Withholding Obligation”) in accordance with the withholding procedures established by the Company. Unless the Withholding Obligation is
satisfied, the Company shall have no obligation to deliver to you any Ordinary Shares in respect of the RSU Award. In the event the Withholding Obligation of the Company arises prior to the delivery to you of Ordinary Shares or it is determined
after the delivery of Ordinary Shares to you that the amount of the Withholding Obligation was greater than the amount withheld by the Company, you agree to indemnify and hold the Company harmless from any failure by the Company to withhold the
proper amount. 
 5. DATE OF ISSUANCE. 

(a) The issuance of shares in respect of the Restricted Stock Units is intended to comply with Treasury Regulations Section 1.409A-1(b)(4) and will be construed and administered in such a manner. Subject to the satisfaction of the Withholding Obligation, if any, in the event one or more Restricted Stock Units vests, the
Company shall issue to you one (1) Ordinary Share for each Restricted Stock Unit that vests on the applicable vesting date(s) (subject to any adjustment under Section 3 above, and subject to any different provisions in the Grant Notice).
Each issuance date determined by this paragraph is referred to as an “Original Issuance Date.” 
 (b) If the
Original Issuance Date falls on a date that is not a business day, delivery shall instead occur on the next following business day. In addition, if: 

(i) the Original Issuance Date does not occur (1) during an “open window period” applicable to you, as determined by
the Company in accordance with the Company’s then-effective policy on trading in Company securities, or (2) on a date when you are otherwise permitted to sell Ordinary Shares on an established stock exchange or stock market (including but
not limited to under a previously established written trading plan that meets the requirements of Rule 10b5-1 under the Exchange Act and was entered into in compliance with the Company’s policies (a
“10b5-1 Arrangement)), and 
 (ii) either (1) a Withholding
Obligation does not apply, or (2) the Company decides, prior to the Original Issuance Date, (A) not to satisfy the Withholding Obligation by withholding Ordinary Shares from the shares otherwise due, on the Original Issuance Date, to you
under this Award, and (B) not to permit you to enter into a “same day sale” commitment with a broker-dealer (including but not limited to a commitment under a 10b5-1 Arrangement) and
(C) not to permit you to pay your Withholding Obligation in cash, 
 (iii) then the shares that would otherwise be issued
to you on the Original Issuance Date will not be delivered on such Original Issuance Date and will instead be delivered on the first business day when you are not prohibited from selling shares of the Company’s Ordinary Shares in the open
public market, but in no event later than December 31 of the calendar year in which the Original Issuance Date occurs (that is, the last day of your taxable year in which the Original Issuance Date occurs), or, if and only if permitted
in a manner that complies with 

  
 2. 










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Treasury Regulations Section 1.409A-1(b)(4), no later than the date that is the 15th day of the third calendar month of the applicable year following
the year in which the Ordinary Shares under this Award are no longer subject to a “substantial risk of forfeiture” within the meaning of Treasury Regulations Section 1.409A-1(d). 

(c) To the extent the RSU Award is a Non-Exempt RSU Award, the provisions of Section 11 of
the Plan shall apply. 
 6. TRANSFERABILITY. Except as otherwise provided in the Plan, your RSU Award is not
transferable, except by will or by the applicable laws of descent and distribution 
 7. CORPORATE
TRANSACTION. Your RSU Award is subject to the terms of any agreement governing a Corporate Transaction involving the Company, including, without limitation, a provision for the appointment of a shareholder representative that is
authorized to act on your behalf with respect to any escrow, indemnities and any contingent consideration. 
 8. NO
LIABILITY FOR TAXES. As a condition to accepting the RSU Award, you hereby (a) agree to not make any claim against the Company, or any of its Officers, Directors, Employees or
Affiliates related to tax liabilities arising from the RSU Award or other Company compensation and (b) acknowledge that you were advised to consult with your own personal tax, financial and other legal advisors regarding the tax consequences of
the RSU Award and have either done so or knowingly and voluntarily declined to do so. 
 9.
SEVERABILITY. If any part of this Agreement or the Plan is declared by any court or governmental authority to be unlawful or invalid, such unlawfulness or invalidity will not invalidate any portion of this
Agreement or the Plan not declared to be unlawful or invalid. Any Section of this Agreement (or part of such a Section) so declared to be unlawful or invalid will, if possible, be construed in a manner which will give effect to the terms of
such Section or part of a Section to the fullest extent possible while remaining lawful and valid. 
 10. OTHER
DOCUMENTS. You hereby acknowledge receipt of or the right to receive a document providing the information required by Rule 428(b)(1) promulgated under the Securities Act, which includes the Prospectus. In addition, you
acknowledge receipt of the Company’s Trading Policy. 
 11. QUESTIONS. If you have questions regarding
these or any other terms and conditions applicable to your RSU Award, including a summary of the applicable federal income tax consequences please see the Prospectus. 

  
 3.