Document:

Exhibit 10.38

 Exhibit 10.38 
 AMENDMENT TO EMPLOYMENT AGREEMENT 
 This Amendment to Employment Agreement
(“Amendment”) is made this 9th day of April, 2009 by and between Toby A. Arnheim (“Employee”) and the Mohegan Tribal Gaming Authority (“MTGA”) with its principal place of business at One Mohegan Sun Boulevard,
Uncasville, CT 06382. 
 Whereas, on April 28, 2008, Employee entered into an Employment Agreement with MTGA; and 
 Whereas, the parties wish to amend a certain provision in the Employment Agreement. 
 Now therefore, in consideration of the covenants and the mutual promises of the parties contained herein, the incorporation of the above paragraphs and other good and valuable consideration, the receipt
and sufficiency of which each of the parties hereto acknowledges, the parties agree as follows: 
  

	 	1.	Paragraph 4.1 (d) shall be deleted in its entirety and replaced with the following: 

 “4.1 (d) During the Term of this Agreement. Employee shall receive a car allowance and living allowance of $7,000.00 per month
applying the standard gross up formula. Employee recognizes that this allowance is not considered base pay or used to calculate bonuses or any other benefits that may be granted by MTGA to its employees.” 
  

	 	2.	This Amendment shall be effective April 1, 2009. 

  

	 	3.	This Amendment may be executed in any number of counterparts and each shall be deemed an original and together shall constitute one and the same instrument.

  

	 	4.	This Amendment is intended to supplement and amend the Employment Agreement. To the extent any of the provisions contained in this Amendment conflict with or are
inconsistent with the provisions of the Employment Agreement the provisions of this Amendment shall govern. Except to the extent set forth herein, the Employment Agreement shall remain in full force and effect. 

 IN WITNESS WHEREOF, the parties hereto have executed this Amendment on the date first above written. 
  

									
	Mohegan Tribal Gaming Authority	 		 	Toby A. Arnheim
					
	By:	 	 /s/    Jeffrey E. Hartmann
	 		 	By:	 	 /s/    Toby A. Arnheim

	Title:	 	EVP/COO	 		 		 	

  

 -1-Fifth Amended and Restated Investor Rights Agreement

 Exhibit 4.2 
 CODEXIS, INC. 
 FIFTH AMENDED AND RESTATED

 INVESTOR RIGHTS AGREEMENT 
 March 4, 2009 

 TABLE OF CONTENTS 
  

					
	 	  	 	  	Page
	 SECTION 1. GENERAL
	  	2
			
	        1.1	  	Definitions	  	2
		
	 SECTION 2. REGISTRATION; RESTRICTIONS ON TRANSFER
	  	3
			
	        2.1	  	Restrictions on Transfer	  	3
	        2.2	  	Demand Registration	  	5
	        2.3	  	Piggyback Registrations	  	6
	        2.4	  	Form S-3 Registration	  	7
	        2.5	  	Expenses of Registration	  	8
	        2.6	  	Obligations of the Company	  	9
	        2.7	  	Termination of Registration Rights	  	10
	        2.8	  	Delay of Registration; Furnishing Information	  	10
	        2.9	  	Indemnification	  	11
	        2.10	  	Assignment of Registration Rights	  	13
	        2.11	  	Limitation on Subsequent Registration Rights	  	13
	        2.12	  	“Market Stand-Off” Agreement	  	13
	        2.13	  	Agreement to Furnish Information	  	14
	        2.14	  	Rule 144 Reporting	  	14
		
	 SECTION 3. COVENANTS OF THE COMPANY
	  	15
			
	        3.1	  	Basic Financial Information and Reporting	  	15
	        3.2	  	Stockholder/Option Lists	  	15
	        3.3	  	Inspection Rights	  	15
	        3.4	  	Confidentiality of Records	  	16
	        3.5	  	Reservation of Common Stock	  	16
	        3.6	  	Stock Vesting	  	16
	        3.7	  	Proprietary Information and Inventions Agreement	  	17
	        3.8	  	Approval of Director/Management Transactions	  	17
	        3.9	  	Approval of Maxygen Transactions	  	17
	        3.10	  	Directors’ Liability and Indemnification	  	17
	        3.11	  	Compensation Committee	  	17
	        3.12	  	Budget Approval	  	17
	        3.13	  	Observer Rights	  	17
	        3.14	  	Termination of Covenants	  	18
		
	 SECTION 4. SUBSCRIPTION RIGHT
	  	18
			
	        4.1	  	Subsequent Offerings	  	18
	        4.2	  	Exercise of Rights	  	18
	        4.3	  	Issuance of Equity Securities to Other Persons	  	19
	        4.4	  	Termination and Waiver of Subscription Rights	  	19

  

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	 	  	 	  	Page
	        4.5	  	Transfer of Subscription Rights	  	19
	        4.6	  	Excluded Securities	  	19
	        4.7	  	Waiver of Subscription Rights	  	20
		
	 SECTION 5. MISCELLANEOUS
	  	20
			
	        5.1	  	Governing Law	  	20
	        5.2	  	Survival	  	20
	        5.3	  	Successors and Assigns	  	20
	        5.4	  	Entire Agreement	  	21
	        5.5	  	Severability	  	21
	        5.6	  	Amendment and Waiver	  	21
	        5.7	  	Delays or Omissions	  	21
	        5.8	  	Notices	  	22
	        5.9	  	Attorneys’ Fees	  	22
	        5.10	  	Titles and Subtitles	  	22
	        5.11	  	Additional Investors	  	22
	        5.12	  	Counterparts	  	22
	        5.13	  	Aggregation of Stock	  	22
	        5.14	  	Specific Performance	  	22

  

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 CODEXIS, INC. 
 FIFTH AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT 
 This Fifth Amended and Restated Investor Rights Agreement (the “Agreement”) is entered into as of March 4, 2009, by and among Codexis, Inc., a Delaware corporation (the “Company”) and the investors
listed on Exhibit A hereto, referred to hereinafter as the “Investors” and each individually as an “Investor.” 
 RECITALS 
 WHEREAS, certain of the Investors hold shares of the
Company’s Series A Preferred Stock, $.0001 par value per share (the “Series A Stock”), Series B Preferred Stock, $.0001 par value per share (the “Series B Stock”), Series C Preferred Stock, $.0001 par value per
share (the “Series C Stock”), Series D Preferred Stock, $.0001 par value per share (the “Series D Stock”) and/or Series E Preferred Stock, $.0001 par value per share (the “Series E Stock”), and
possess registration rights, information rights, rights of first offer, and other rights pursuant to that certain Fourth Amended and Restated Investors’ Rights Agreement dated as of November 13, 2007, as amended, by and among the Company
and such Investors (the “Prior Agreement”); 
 WHEREAS, certain of the Investors and the Company are parties to
that certain Series F Preferred Stock Purchase Agreement of even date herewith (the “Purchase Agreement”) which contemplates the sale of Series F Preferred Stock, $.0001 par value per share (the “Series F Stock”) to
such Investors (the “Financing”); 
 WHEREAS, the parties to the Prior Agreement desire to terminate the Prior
Agreement and accept the rights and covenants hereof in lieu of their rights and covenants under the Prior Agreement; 
 WHEREAS, the obligations in the Purchase Agreement are conditioned upon the execution and delivery of this Agreement; and 
 WHEREAS, in connection with the consummation of the Financing, the parties desire to enter into this Agreement in order to grant registration, information rights and other rights to the Investors as set forth below. 

 AGREEMENT 
 NOW, THEREFORE, in consideration of the representations, warranties, covenants and agreements contained in this Agreement and for other good
and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree that the Prior Agreement shall be superseded and replaced in its entirety by this Agreement, and the parties hereto further agree as
follows: 
 SECTION 1. GENERAL. 
 1.1 Definitions. As used in this Agreement the following terms shall have the following respective meanings: 
 (a) “Affiliate” means any corporation or other entity that is directly or indirectly controlling, controlled by or under common control with a party hereto, or any investment funds with
the same manager or advisor as a party hereto. For the purpose of this definition, “control” shall mean the direct or indirect ownership of at least fifty percent (50%) of the outstanding shares or other voting rights of the subject
entity to elect directors or the equivalent governing body, or if not meeting the preceding, any entity owned or controlled by or owning or controlling the maximum control or ownership right permitted in the country where such entity exists.

 (b) “Exchange Act” means the Securities Exchange Act of 1934, as amended. 
 (c) “Form S-3” means such form under the Securities Act as in effect on the date hereof or any successor or similar
registration form under the Securities Act subsequently adopted by the SEC that permits inclusion or incorporation of substantial information by reference to other documents filed by the Company with the SEC. 
 (d) “Holder” means any person owning of record Registrable Securities that have not been sold to the public or any assignee
of record of such Registrable Securities in accordance with Section 2.10 hereof. 
 (e) “Initial Offering”
means the Company’s first firm commitment underwritten public offering of its Common Stock registered under the Securities Act that results in the Preferred Stock being converted into Common Stock. 
 (f) “Initating Holders” shall mean Holders of Registrable Securities who in the aggregate hold not less than thirty percent
(30%) of the outstanding Registrable Securities. 
 (g) “Preferred Stock” means the Series A Stock, the
Series B Stock, the Series C Stock, the Series D Stock, the Series E Stock and the Series F Stock. 
 (h)
“Register,” “registered,” and “registration” refer to a registration effected by preparing and filing a registration statement in compliance with the Securities Act, and the declaration or ordering of
effectiveness of such registration statement or document. 
 (i) “Registrable Securities” means (a) Common
Stock of the Company issued or issuable upon conversion of the Shares and the exercise of any warrants and (b) any Common Stock of the Company issued as (or issuable upon the conversion or exercise of any warrant, right or other security that
is issued as) a dividend or other distribution with respect to, or in exchange for or in replacement of, such above-described securities. Notwithstanding the foregoing, Registrable Securities shall not include any securities sold by a person to the
public either pursuant to a registration statement or Rule 144 or sold in a private transaction in which the transferor’s rights under Section 2 of this Agreement are not assigned. 
  

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 (j) “Registrable Securities then outstanding” shall be the number of shares
determined by calculating the total number of shares of the Company’s Common Stock that are Registrable Securities and either (a) are then issued and outstanding or (b) are issuable pursuant to then exercisable or convertible
securities. 
 (k) “Registration Expenses” shall mean all expenses incurred by the Company in complying with
Sections 2.2, 2.3, 2.4 and 2.6 hereof, including, without limitation, all registration and filing fees, printing expenses, fees and disbursements of counsel for the Company, reasonable fees and disbursements of counsel for the Holders not to
exceed (a) fifty thousand dollars ($50,000) in the aggregate in the case of a registration on Form S-1 or its equivalent or (b) twenty five thousand dollars ($25,000) in the aggregate in the case of a registration on Form S-3 or its
equivalent, blue sky fees and expenses and the expense of any special audits incident to or required by any such registration (but excluding the compensation of regular employees of the Company, which shall be paid in any event by the Company).

 (l) “SEC” or “Commission” means the Securities and Exchange Commission. 
 (m) “Securities Act” shall mean the Securities Act of 1933, as amended. 
 (n) “Selling Expenses” shall mean all underwriting discounts and selling commissions applicable to the sale. 
 (o) “Senior Officer” shall mean the Chief Executive Officer, Chief Financial Officer, General Counsel, President or any
Senior Vice President of the Company. 
 (p) “Shares” shall mean the Company’s Series F Stock issued
pursuant to the Purchase Agreement and the Series A Stock, Series B Stock, Series C Stock, the Series D Stock and the Series E Stock of the Company held by certain Investors listed on Exhibit A hereto and their permitted assigns.

 (q) “Special Registration Statement” shall mean (i) a registration statement relating to any employee
benefit plan or (ii) with respect to any corporate reorganization or transaction under Rule 145 of the Securities Act, including any registration statements related to the resale of securities issued in such a transaction or (iii) a
registration related to stock issued or issuable upon conversion of debt securities. 
 SECTION 2. REGISTRATION; RESTRICTIONS ON TRANSFER.

 2.1 Restrictions on Transfer. 
 (a) Each Holder agrees not to make any disposition of all or any portion of the Shares or Registrable Securities unless and until: 
 (i) There is then in effect a registration statement under the Securities Act covering such proposed disposition and such disposition is
made in accordance with such registration statement; or 
  

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 (ii)(A) The transferee has agreed in writing to be bound by the terms of this
Agreement, (B) such Holder shall have notified the Company of the proposed disposition and shall have furnished the Company with a detailed statement of the circumstances surrounding the proposed disposition, and (C) if reasonably
requested by the Company, such Holder shall have furnished the Company with an opinion of counsel, reasonably satisfactory to the Company, that such disposition will not require registration of such shares under the Securities Act. It is agreed that
the Company will not require opinions of counsel for transactions made pursuant to Rule 144, except in unusual circumstances. After its Initial Offering, the Company will not require the transferee to be bound by the terms of Section 2.1(a)(ii)
of this Agreement. 
 (iii) Notwithstanding the provisions of paragraphs (i) and (ii) above, no such registration
statement or opinion of counsel shall be necessary for a transfer by a Holder that is (A) a partnership transferring to its partners or former partners in accordance with partnership interests, (B) a corporation transferring to a
wholly-owned subsidiary or a parent corporation that owns all of the capital stock of the Holder, (C) a limited liability company transferring to its members or former members in accordance with their interest in the limited liability company,
(D) an individual transferring to the Holder’s family member or trust for the benefit of an individual Holder, or (E) an Affiliate; provided, however, that in each case the transferee will be subject to the terms of this
Agreement to the same extent as if he were an original Holder hereunder. 
 (b) Each certificate representing Shares or
Registrable Securities shall (unless otherwise permitted by the provisions of the Agreement) be stamped or otherwise imprinted with a legend substantially similar to the following (in addition to any legend required under applicable state securities
laws): 
 THE SECURITIES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO THE TERMS AND CONDITIONS OF AN INVESTOR RIGHTS AGREEMENT
THAT PLACES CERTAIN RESTRICTIONS ON THE TRANSFER OF THE SHARES REPRESENTED HEREBY. A COPY OF SUCH INVESTOR RIGHTS AGREEMENT WILL BE FURNISHED TO THE RECORD HOLDER OF THIS CERTIFICATE WITHOUT CHARGE UPON WRITTEN REQUEST TO THE COMPANY AT ITS
PRINCIPAL PLACE OF BUSINESS. 
 (c) The Company shall be obligated to reissue promptly unlegended certificates at the request of
any Holder thereof if the Holder shall have obtained an opinion of counsel (which counsel may be counsel to the Company) reasonably acceptable to the Company to the effect that the securities proposed to be disposed of may lawfully be so disposed of
without registration, qualification or legend. 
 (d) Any legend endorsed on an instrument pursuant to applicable state
securities laws and the stop-transfer instructions with respect to such securities shall be removed upon receipt by the Company of an order of the appropriate blue sky authority authorizing such removal. 
  

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 2.2 Demand Registration. 
 (a) Subject to the conditions of this Section 2.2, if the Company shall receive a written request from the Initiating Holders that the
Company file a registration statement under the Securities Act covering the registration of Registrable Securities with an anticipated aggregate offering price, net of underwriting discounts and commissions, of at least ten million dollars
($10,000,000) (a “Qualified Public Offering”), then the Company shall, within thirty (30) days of the receipt thereof, give written notice of such request to all Holders, and subject to the limitations of this Section 2.2,
effect, as expeditiously as reasonably possible, the registration under the Securities Act of all Registrable Securities that the Holders request to be registered. 
 (b) If the Initiating Holders intend to distribute the Registrable Securities covered by their request by means of an underwriting, they shall so advise the Company as a part of their request made
pursuant to this Section 2.2 or any request pursuant to Section 2.4 and the Company shall include such information in the written notice referred to in Section 2.2(a) or Section 2.4(a), as applicable. In such event, the right of
any Holder to include its Registrable Securities in such registration shall be conditioned upon such Holder’s participation in such underwriting and the inclusion of such Holder’s Registrable Securities in the underwriting to the extent
provided herein. All Holders proposing to distribute their securities through such underwriting shall enter into an underwriting agreement in customary form with the underwriter or underwriters selected for such underwriting by a majority in
interest of the Initiating Holders (which underwriter or underwriters shall be reasonably acceptable to the Company). Notwithstanding any other provision of this Section 2.2 or Section 2.4, if the underwriter advises the Company that
marketing factors require a limitation of the number of securities to be underwritten (including Registrable Securities) then the Company shall so advise all Holders of Registrable Securities that would otherwise be underwritten pursuant hereto, and
the number of shares that may be included in the underwriting shall be allocated to the Holders of such Registrable Securities on a pro rata basis based on the number of Registrable Securities held by all such Holders (including the
Initiating Holders); provided, however, that the number of shares of Registrable Securities to be included in such underwriting and registration shall not be reduced unless all other securities of the Company are first entirely
excluded from the underwriting and registration. Any Registrable Securities excluded or withdrawn from such underwriting shall be withdrawn from the registration. 
 (c) The Company shall not be required to effect a registration pursuant to this Section 2.2: 
 (i) prior to the earlier of (A) March 4, 2012 or (B) one hundred eighty (180) days following the effective date of the registration statement pertaining to the Initial Offering;

 (ii) after the Company has effected two (2) registrations pursuant to this Section 2.2, and such registrations
have been declared or ordered effective; 
 (iii) during the period starting with the date of filing of, and ending on the date
one hundred eighty (180) days following the effective date of the registration statement pertaining to the Initial Offering; provided, however, that the Company makes reasonable best efforts to cause such registration statement to
become effective; 
  

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 (iv) if within thirty (30) days of receipt of a written request from Initiating
Holders pursuant to Section 2.2(a), the Company gives notice to the Holders of the Company’s intention to file a registration statement for its Initial Offering within ninety (90) days; 
 (v) if the Company shall furnish to Holders requesting a registration statement pursuant to this Section 2.2, a certificate signed by
the Chairman of the Board stating that in the good faith judgment of the Board of Directors of the Company, it would be seriously detrimental to the Company and its stockholders for such registration statement to be effected at such time, in which
event the Company shall have the right to defer such filing for a period of not more than one hundred twenty (120) days after receipt of the request of the Initiating Holders; provided that such right to delay a request shall be
exercised by the Company not more than once in any twelve (12) month period; or 
 (vi) in any particular jurisdiction in
which the Company would be required to qualify to do business or to execute a general consent to service of process in effecting such registration, qualification or compliance. 
 2.3 Piggyback Registrations. The Company shall notify all Holders of Registrable Securities in writing at least fifteen
(15) days prior to the filing of any registration statement under the Securities Act for purposes of a public offering of securities of the Company (including, but not limited to, registration statements relating to secondary offerings of
securities of the Company, but excluding Special Registration Statements) and will afford each such Holder an opportunity to include in such registration statement all or part of such Registrable Securities held by such Holder. Each Holder desiring
to include in any such registration statement all or any part of the Registrable Securities held by it shall, within seven (7) days after the above-described notice from the Company, so notify the Company in writing. Such notice shall state the
intended method of disposition of the Registrable Securities by such Holder. If a Holder decides not to include all of its Registrable Securities in any registration statement thereafter filed by the Company, such Holder shall nevertheless continue
to have the right to include any Registrable Securities in any subsequent registration statement or registration statements as may be filed by the Company with respect to offerings of its securities, all upon the terms and conditions set forth
herein. 
 (a) Underwriting. If the registration statement under which the Company gives notice under this
Section 2.3 is for an underwritten offering, the Company shall so advise the Holders of Registrable Securities. In such event, the right of any such Holder to be included in a registration pursuant to this Section 2.3 shall be conditioned
upon such Holder’s participation in such underwriting and the inclusion of such Holder’s Registrable Securities in the underwriting to the extent provided herein. All Holders proposing to distribute their Registrable Securities through
such underwriting shall enter into an underwriting agreement in customary form with the underwriter or underwriters selected for such underwriting by the Company. Notwithstanding any other provision of this Agreement, if the underwriter determines
in good faith that marketing factors require a limitation of the number of shares to be underwritten, the number of shares that 
  

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 may be included in the underwriting shall be allocated, first, to the Company; second, to the Holders on a
pro rata basis based on the total number of Registrable Securities held by the Holders; and third, to any stockholder of the Company (other than a Holder) on a pro rata basis. No such reduction shall reduce the amount of securities of
the selling Holders included in the registration below twenty-five percent (25%) of the total amount of securities included in such registration, unless such offering is the Initial Offering and such registration does not include shares of any
other selling stockholders, in which event any or all of the Registrable Securities of the Holders may be excluded in accordance with the immediately preceding sentence. If any Holder disapproves of the terms of any such underwriting, such Holder
may elect to withdraw therefrom by written notice to the Company and the underwriter, delivered at least ten (10) business days prior to the effective date of the registration statement. Any Registrable Securities excluded or withdrawn from
such underwriting shall be excluded and withdrawn from the registration. For any Holder that is a partnership, limited liability company or corporation, the partners, retired partners, members, retired members and stockholders of such Holder, or the
estates and family members of any such partners, retired partners, member and retired members and any trusts for the benefit of any of the foregoing person shall be deemed to be a single “Holder,” and any pro rata reduction with
respect to such “Holder” shall be based upon the aggregate amount of shares carrying registration rights owned by all entities and individuals included in such “Holder,” as defined in this sentence. 
 (b) Right to Terminate Registration. The Company shall have the right to terminate or withdraw any registration initiated by
it under this Section 2.3 prior to the effectiveness of such registration whether or not any Holder has elected to include securities in such registration. The Registration Expenses of such withdrawn registration shall be borne by the Company
in accordance with Section 2.5 hereof. 
 2.4 Form S-3 Registration . In case the Company shall receive from any Holder or
Holders of Registrable Securities a written request or requests that the Company effect a registration on Form S-3 (or any successor to Form S-3) or any similar short-form registration statement and any related qualification or compliance
with respect to all or a part of the Registrable Securities owned by such Holder or Holders, the Company will: 
 (a) promptly
give written notice of the proposed registration, and any related qualification or compliance, to all other Holders of Registrable Securities; and 
 (b) as soon as practicable, effect such registration and all such qualifications and compliances as may be so requested and as would permit or facilitate the sale and distribution of all or such portion
of such Holder’s or Holders’ Registrable Securities as are specified in such request, together with all or such portion of the Registrable Securities of any other Holder or Holders joining in such request as are specified in a written
request given within fifteen (15) days after receipt of such written notice from the Company; provided, however, that the Company shall not be obligated to effect any such registration, qualification or compliance pursuant to this
Section 2.4: 
 (i) if Form S-3 is not available for such offering by the Holders; 
  

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 (ii) if the Holders, together with the holders of any other securities of the Company
entitled to inclusion in such registration, propose to sell Registrable Securities and such other securities (if any) at an aggregate price to the public of less than one million dollars ($1,000,000); 
 (iii) if within thirty (30) days of receipt of a written request from any Holder or Holders pursuant to this Section 2.4, the
Company gives notice to such Holder or Holders of the Company’s intention to make a public offering within ninety (90) days, other than pursuant to a Special Registration Statement; 
 (iv) if the Company shall furnish to the Holders a certificate signed by the Chairman of the Board of Directors of the Company stating that
in the good faith judgment of the Board of Directors of the Company, it would be seriously detrimental to the Company and its stockholders for such Form S-3 registration to be effected at such time, in which event the Company shall have the
right to defer the filing of the Form S-3 registration statement for a period of not more than ninety (90) days after receipt of the request of the Holder or Holders under this Section 2.4; provided, that such right to delay a
request shall be exercised by the Company not more than once in any twelve (12) month period; 
 (v) if the Company has,
within the twelve (12) month period preceding the date of such request, already effected two (2) registrations on Form S-3 for the Holders pursuant to this Section 2.4; or 
 (vi) in any particular jurisdiction in which the Company would be required to qualify to do business or to execute a general consent to
service of process in effecting such registration, qualification or compliance. 
 (c) Subject to the foregoing, the Company
shall file a Form S-3 registration statement covering the Registrable Securities and other securities so requested to be registered as soon as practicable after receipt of the requests of the Holders. Registrations effected pursuant to this
Section 2.4 shall not be counted as demands for registration or registrations effected pursuant to Sections 2.2 or 2.3, respectively. All Registration Expenses incurred in connection with registrations requested pursuant to this
Section 2.4 after the first two (2) registrations shall be paid by the selling Holders pro rata in proportion to the number of shares sold by each such Holder. 
 2.5 Expenses of Registration. Except as specifically provided herein, all Registration Expenses incurred in connection with any
registration, qualification or compliance pursuant to Section 2.2 or any registration under Section 2.3 or Section 2.4 herein shall be borne by the Company. All Selling Expenses incurred in connection with any registrations hereunder
shall be borne by the holders of the securities so registered pro rata on the basis of the number of shares so registered. The Company shall not, however, be required to pay for expenses of any registration proceeding begun pursuant to
Section 2.2 or 2.4, the request of which has been subsequently withdrawn by the Initiating Holders unless (a) the withdrawal is based upon material adverse information concerning the Company of which the Initiating Holders were not aware
at the time of such request or (b) the Holders of a majority of Registrable Securities agree to forfeit their right to one requested registration pursuant to Section 2.2 or Section 2.4, as 
  

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 applicable, in which event such right shall be forfeited by all Holders. If the Holders are required to pay
the Registration Expenses, such expenses shall be borne by the holders of securities (including Registrable Securities) requesting such registration in proportion to the number of shares for which registration was requested. If the Company is
required to pay the Registration Expenses of a withdrawn offering pursuant to clause (a) above, then the Holders shall not forfeit their rights pursuant to Section 2.2 or Section 2.4 to a demand registration. 
 2.6 Obligations of the Company. Whenever required to effect the registration of any Registrable Securities, the Company shall, as
expeditiously as reasonably possible: 
 (a) Prepare and file with the SEC a registration statement with respect to such
Registrable Securities and use all reasonable best efforts to cause such registration statement to become effective, and, upon the request of the Holders of a majority of the Registrable Securities registered thereunder, keep such registration
statement effective for up to one hundred twenty (120) days or, if earlier, until the Holder or Holders have completed the distribution related thereto; provided, however, that at any time, upon written notice to the participating
Holders and for a period not to exceed sixty (60) days thereafter (the “Suspension Period”), the Company may delay the filing or effectiveness of any registration statement or suspend the use or effectiveness of any
registration statement (and the Initiating Holders hereby agree not to offer or sell any Registrable Securities pursuant to such registration statement during the Suspension Period) if the Company reasonably believes that the Company may, in the
absence of such delay or suspension hereunder, be required under state or federal securities laws to disclose any corporate development the disclosure of which could reasonably be expected to have an adverse effect upon the Company, its
stockholders, a potentially significant transaction or event involving the Company, or any negotiations, discussions, or proposals directly relating thereto. No more than two (2) such Suspension Periods shall occur in any twelve (12) month
period. In the event that the Company shall exercise its rights hereunder, the applicable time period during which the registration statement is to remain effective shall be extended by a period of time equal to the duration of the Suspension
Period. The Company may extend the Suspension Period for an additional consecutive sixty (60) days with the consent of the holders of a majority of the Registrable Securities proposed to be sold by the Initiating Holders, which consent shall
not be unreasonably withheld. If so directed by the Company, the Initiating Holders shall use their reasonable efforts to deliver to the Company (at the Company’s expense) all copies, other than permanent file copies then in such Initiating
Holders’ possession, of the prospectus relating to such Registrable Securities current at the time of receipt of such notice. 
 (b) Prepare and file with the SEC such amendments and supplements to such registration statement and the prospectus used in connection with such registration statement as may be necessary to comply with the provisions of the Securities Act
with respect to the disposition of all securities covered by such registration statement for the period set forth in paragraph (a) above. 
 (c) Furnish to the Holders such number of copies of a prospectus, including a preliminary prospectus, in conformity with the requirements of the Securities Act, and such other documents as they may
reasonably request in order to facilitate the disposition of Registrable Securities owned by them. 
  

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 (d) Use its reasonable best efforts to register and qualify the securities covered by such
registration statement under such other securities or Blue Sky laws of such jurisdictions as shall be reasonably requested by the Holders; provided, however that the Company shall not be required in connection therewith or as a
condition thereto to qualify to do business or to file a general consent to service of process in any such states or jurisdictions. 
 (e) In the event of any underwritten public offering, enter into and perform its obligations under an underwriting agreement, in usual and customary form, with the managing underwriter(s) of such offering. Each Holder participating in such
underwriting shall also enter into and perform its obligations under such an agreement. 
 (f) Notify each Holder of Registrable
Securities covered by such registration statement at any time when a prospectus relating thereto is required to be delivered under the Securities Act of the happening of any event as a result of which the prospectus included in such registration
statement, as then in effect, includes an untrue statement of a material fact or omits to state a material fact required to be stated therein or necessary to make the statements therein not misleading in the light of the circumstances then existing.
The Company will use reasonable best efforts to amend or supplement such prospectus in order to cause such prospectus not to include any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary
to make the statements therein not misleading in the light of the circumstances then existing. 
 (g) Furnish, on the date that
such Registrable Securities are delivered to the underwriters for sale, if such securities are being sold through underwriters, (i) an opinion, dated as of such date, of the counsel representing the Company for the purposes of such
registration, in form and substance as is customarily given to underwriters in an underwritten public offering, addressed to the underwriters, if any, and (ii) a letter, dated as of such date, from the independent certified public accountants
of the Company, in form and substance as is customarily given by independent certified public accountants to underwriters in an underwritten public offering addressed to the underwriters. 
 2.7 Termination of Registration Rights. All registration rights granted under this Section 2 shall terminate and be of no further force
and effect five (5) years after the date of the Company’s Initial Offering. In addition, a Holder’s registration rights shall expire if (a) the Company has completed its Initial Offering and is subject to the provisions of the
Exchange Act, (b) such Holder (together with its affiliates) holds less than 1% of the Company’s outstanding Common Stock (treating all shares of convertible Preferred Stock on an as converted basis) and (c) all Registrable Securities
held by and issuable to such Holder (and its affiliates) may be sold under Rule 144 promulgated under Securities Act during any ninety (90) day period. 
 2.8 Delay of Registration; Furnishing Information. 
 (a) No Holder shall have any
right to obtain or seek an injunction restraining or otherwise delaying any such registration as the result of any controversy that might arise with respect to the interpretation or implementation of this Section 2. 
  

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 (b) It shall be a condition precedent to the obligations of the Company to take any action
pursuant to Section 2.2, 2.3 or 2.4 that the selling Holders shall furnish to the Company such information regarding themselves, the Registrable Securities held by them and the intended method of disposition of such securities as shall be
required to effect the registration of their Registrable Securities. 
 (c) The Company shall have no obligation with respect to
any registration requested pursuant to Section 2.2 or Section 2.4 if, due to the operation of subsection 2.2(b), the anticipated aggregate offering price of the Registrable Securities to be included in the registration does not equal
or exceed the anticipated aggregate offering price required to originally trigger the Company’s obligation to initiate such registration as specified in Section 2.2 or Section 2.4, whichever is applicable. 
 2.9 Indemnification. In the event any Registrable Securities are included in a registration statement under Sections 2.2, 2.3 or 2.4:

 (a) To the extent permitted by law, the Company will indemnify and hold harmless each Holder, the partners, members, officers
and directors of each Holder, any underwriter (as defined in the Securities Act) for such Holder and each person, if any, who controls such Holder or underwriter within the meaning of the Securities Act or the Exchange Act, against any losses,
claims, damages, or liabilities (joint or several) to which they may become subject under the Securities Act, the Exchange Act or other federal or state law, insofar as such losses, claims, damages or liabilities (or actions in respect thereof)
arise out of or are based upon any of the following statements, omissions or violations (collectively, “Violations”) by the Company: (i) any untrue statement or alleged untrue statement of a material fact contained in such
registration statement, including any preliminary prospectus or final prospectus contained therein or any amendments or supplements thereto, (ii) the omission or alleged omission to state therein a material fact required to be stated therein,
or necessary to make the statements therein not misleading, or (iii) any violation or alleged violation by the Company of the Securities Act, the Exchange Act, any state securities law or any rule or regulation promulgated under the Securities
Act, the Exchange Act or any state securities law in connection with the offering covered by such registration statement; and the Company will pay as incurred to each such Holder, partner, member, officer, director, underwriter or controlling person
for any legal or other expenses reasonably incurred by them in connection with investigating or defending any such loss, claim, damage, liability or action; provided, however, that the indemnity agreement contained in this
Section 2.9(a) shall not apply to amounts paid in settlement of any such loss, claim, damage, liability or action if such settlement is effected without the consent of the Company, which consent shall not be unreasonably withheld, nor shall the
Company be liable in any such case for any such loss, claim, damage, liability or action to the extent that it arises out of or is based upon a Violation that occurs in reliance upon and in conformity with written information furnished expressly for
use in connection with such registration by such Holder, partner, member, officer, director, underwriter or controlling person of such Holder. 
 (b) To the extent permitted by law, each Holder will, severally but not jointly, if Registrable Securities held by such Holder are included in the securities as to which such registration qualifications
or compliance is being effected, indemnify and hold harmless the Company, each of its directors, its officers and each person, if any, who controls the Company

  

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within the meaning of the Securities Act, any underwriter and any other Holder selling securities under such registration statement or any of such other Holder’s partners, members, directors
or officers or any person who controls such Holder, against any losses, claims, damages or liabilities to which the Company or any such director, officer, controlling person, underwriter or other such Holder, or partner, member, director, officer or
controlling person of such other Holder may become subject under the Securities Act, the Exchange Act or other federal or state law, insofar as such losses, claims, damages or liabilities (or actions in respect thereto) arise out of or are based
upon any Violation, in each case to the extent (and only to the extent) that such Violation occurs in reliance upon and in conformity with written information furnished by such Holder under an instrument duly executed by such Holder and stated to be
specifically for use in connection with such registration; and each such Holder will pay as incurred any legal or other expenses reasonably incurred by the Company or any such director, officer, controlling person, underwriter or other Holder, or
partner, member, officer, director or controlling person of such other Holder in connection with investigating or defending any such loss, claim, damage, liability or action if it is judicially determined that there was such a Violation;
provided, however, that the indemnity agreement contained in this Section 2.9(b) shall not apply to amounts paid in settlement of any such loss, claim, damage, liability or action if such settlement is effected
without the consent of the Holder, which consent shall not be unreasonably withheld; provided further, that in no event shall any indemnity under this Section 2.9 exceed the net proceeds from the offering received by such Holder.

 (c) Promptly after receipt by an indemnified party under this Section 2.9 of notice of the commencement of any action
(including any governmental action), such indemnified party will, if a claim in respect thereof is to be made against any indemnifying party under this Section 2.9, deliver to the indemnifying party a written notice of the commencement thereof
and the indemnifying party shall have the right to participate in, and, to the extent the indemnifying party so desires, jointly with any other indemnifying party similarly noticed, to assume the defense thereof with counsel mutually satisfactory to
the parties; provided, however, that an indemnified party shall have the right to retain its own counsel, with the fees and expenses to be paid by the indemnifying party, if representation of such indemnified party by the
counsel retained by the indemnifying party would be inappropriate due to actual or potential differing interests between such indemnified party and any other party represented by such counsel in such proceeding. The failure to deliver written notice
to the indemnifying party within a reasonable time of the commencement of any such action, if materially prejudicial to its ability to defend such action, shall relieve such indemnifying party of any liability to the indemnified party under this
Section 2.9, but the omission so to deliver written notice to the indemnifying party will not relieve it of any liability that it may have to any indemnified party otherwise than under this Section 2.9. 
 (d) If the indemnification provided for in this Section 2.9 is held by a court of competent jurisdiction to be unavailable to an
indemnified party with respect to any losses, claims, damages or liabilities referred to herein, the indemnifying party, in lieu of indemnifying such indemnified party thereunder, shall to the extent permitted by applicable law contribute to the
amount paid or payable by such indemnified party as a result of such loss, claim, damage or liability in such proportion as is appropriate to reflect the relative fault of the indemnifying party on the one hand and of the indemnified party on the
other in connection with the Violation(s) that resulted in such loss, claim, damage or liability, as well as any other relevant equitable

  

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considerations. The relative fault of the indemnifying party and of the indemnified party shall be determined by a court of law by reference to, among other things, whether the untrue or alleged
untrue statement of a material fact or the omission to state a material fact relates to information supplied by the indemnifying party or by the indemnified party and the parties’ relative intent, knowledge, access to information and
opportunity to correct or prevent such statement or omission; provided, that, in no event shall any contribution by a Holder hereunder exceed the net proceeds from the offering received by such Holder. 
 (e) The obligations of the Company and Holders under this Section 2.9 shall survive completion of any offering of Registrable
Securities in a registration statement and the termination of this Agreement. No indemnifying party, in the defense of any such claim or litigation, shall, except with the consent of each indemnified party, consent to entry of any judgment or enter
into any settlement which does not include as an unconditional term thereof the giving by the claimant or plaintiff to such Indemnified Party of a release from all liability in respect to such claim or litigation. 
 2.10 Assignment of Registration Rights. The rights to cause the Company to register Registrable Securities pursuant to this Section 2
may be assigned by a Holder to a transferee or assignee of Registrable Securities that (a) is a subsidiary, parent, general partner, limited partner, retired partner, member or retired member of a Holder, (b) is a Holder’s family
member or trust for the benefit of an individual Holder, or (c) acquires at least fifty thousand (50,000) shares of Registrable Securities (as adjusted for stock splits and combinations); or (d) is an Affiliate of such Holder
provided, however, (i) the transferor shall, within ten (10) days after such transfer, furnish to the Company written notice of the name and address of such transferee or assignee and the securities with respect
to which such registration rights are being assigned and (ii) such transferee shall agree in writing to be subject to all restrictions set forth in this Agreement. 
 2.11 Limitation on Subsequent Registration Rights. Other than as provided in Section 5.11, after the date of this Agreement, the Company shall not, without the prior written consent of the Holders of
at least two-thirds of the Registrable Securities then outstanding, enter into any agreement with any holder or prospective holder of any securities of the Company that would grant such holder registration rights pari passu or senior to those
granted to the Holders hereunder, other than the right to a Special Registration Statement (“Subsequent Registration Rights”). 
 2.12 “Market Stand-Off” Agreement. Each Holder hereby agrees that such Holder shall not sell, 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, any Common Stock (or other securities) of the Company held by such Holder (other than those included in the registration and Common Stock purchased by a Holder in the open market after the
effective date of such registration statement) for a period specified by the representative of the underwriters of Common Stock (or other securities) of the Company not to exceed 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, not to exceed thirty-four (34) days after the expiration of the 180-day period as the underwriters or the Company shall request in order to facilitate
compliance with National Association of Securities Dealers Rule 2711); provided that: 
 (i) such agreement shall apply only to
the Company’s Initial Offering; and 
  

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 (ii) all executive officers and directors of the Company and holders of at least one
percent (1%) of the Company’s capital stock (on an as converted basis) and all other persons with registration rights (whether or not pursuant to this Agreement) enter into similar agreements. 
 2.13 Agreement to Furnish Information. Each Holder agrees to execute and deliver such other agreements as may be reasonably requested by the
Company or the underwriter that are consistent with the Holder’s obligations under Section 2.12 or that are necessary to give further effect thereto. In addition, if requested by the Company or the representative of the underwriters of
Common Stock (or other securities) of the Company, each Holder shall provide, within ten (10) days of such request, such information as may be required by the Company or such representative in connection with the completion of any public
offering of the Company’s securities pursuant to a registration statement filed under the Securities Act. The obligations described in Section 2.12 and this Section 2.13 shall not apply to a Special Registration. The Company may
impose stop-transfer instructions with respect to the shares of Common Stock (or other securities) subject to the foregoing restriction until the end of the one hundred eighty (180) day (or two hundred fourteen (214) day) period, if
applicable. Each Holder agrees that any transferee of any shares of Registrable Securities shall be bound by Sections 2.12 and 2.13. The underwriters of the Company’s stock are intended third party beneficiaries of Sections 2.12 and 2.13
and shall have the right, power and authority to enforce the provisions hereof as though they were a party hereto. 
 2.14 Rule
144 Reporting. With a view to making available to the Holders the benefits of certain rules and regulations of the SEC that may permit the sale of the Registrable Securities to the public without registration, the Company agrees to use its
reasonable best efforts to: 
 (a) Make and keep public information available, as those terms are understood and defined in SEC
Rule 144 or any similar or analogous rule promulgated under the Securities Act, at all times after the effective date of the first registration filed by the Company for an offering of its securities to the general public; 
 (b) File with the SEC, in a timely manner, all reports and other documents required of the Company under the Exchange Act; and 

(c) So long as a Holder owns any Registrable Securities, furnish to such Holder forthwith upon request: a written statement by the
Company as to its compliance with the reporting requirements of Rule 144 of the Securities Act, and of the Exchange Act (at any time after it has become subject to such reporting requirements); a copy of the most recent annual or quarterly report of
the Company; and such other reports and documents as a Holder may reasonably request in availing itself of any rule or regulation of the SEC allowing it to sell any such securities without registration. 
  

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 SECTION 3. COVENANTS OF THE COMPANY 
 3.1 Basic Financial Information and Reporting 
 (a) The Company will maintain true books and records of account in which full and correct entries will be made of all its business transactions pursuant to a system of accounting established and
administered in accordance with United States generally accepted accounting principles consistently applied, and will set aside on its books all such proper accruals and reserves as shall be required under generally accepted accounting principles
consistently applied. 
 (b) As soon as practicable after the end of each fiscal year of the Company, and in any event within
one hundred and twenty (120) days thereafter, the Company will furnish each Investor a balance sheet of the Company, as at the end of such fiscal year, and a statement of income and a statement of cash flows of the Company, for such year, all
prepared in accordance with United States generally accepted accounting principles consistently applied and setting forth in each case in comparative form the figures for the previous fiscal year, all in reasonable detail. Such financial statements
shall be accompanied by a report and opinion thereon by independent public accountants of national standing selected by the Company’s Board of Directors. 
 (c) The Company will furnish each Investor, as soon as practicable after the end of the first, second and third quarterly accounting periods in each fiscal year of the Company, and in any event within
forty-five (45) days thereafter, a balance sheet of the Company as of the end of each such quarterly period and a statement of income of the Company for such period and for the current fiscal year to date, prepared in accordance with United
States generally accepted accounting principles, with the exception that no notes need be attached to such statements and year-end audit adjustments may not have been made. 
 (d) So long as an Investor (with its Affiliates) shall own not less than one hundred thousand (100,000) shares of Registrable
Securities (as adjusted for stock splits and combinations) (a “Major Investor”), the Company will furnish each such Major Investor: (i) at least sixty (60) days prior to the beginning of each fiscal year an annual budget
and operating plans for such fiscal year (and as soon as available, any subsequent revisions thereto); and (ii) as soon as practicable after the end of each month, and in any event within thirty (30) days thereafter, a statement of income
of the Company for such month and for the current fiscal year to date, including a comparison to plan figures for such period, prepared in accordance with United States generally accepted accounting principles consistently applied, with the
exception that no notes need be attached to such statements and year-end audit adjustments may not have been made. 
 3.2
Stockholder/Option Lists. The Company will furnish each Major Investor, upon written request, a stockholder list for the Company and an option holder list for the Company. 
 3.3 Inspection Rights. Each Major Investor shall have the right to visit and inspect any of the properties of the Company or any of its
subsidiaries, and to discuss the affairs, finances and accounts of the Company or any of its subsidiaries with its officers, and to review such information as is reasonably requested all at such reasonable times and as often as may be 
  

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reasonably requested; provided, however, that the Company shall not be obligated under this Section 3.3 with respect to a competitor of the Company or with respect to
information that the Board of Directors determines in good faith is confidential and should not, therefore, be disclosed. 
 3.4
Confidentiality of Records. Each Holder agrees to use, and to use reasonable efforts to ensure that its authorized representatives use, the same degree of care as such recipient uses to protect its own confidential information to keep confidential
any information furnished to it pursuant to this Section 3 and any other information identified as proprietary or confidential except such information that (i) was in the public domain prior to the time it was furnished to such recipient,
(ii) is or becomes (through no willful or improper action or inaction by such recipient) generally available to the public, (iii) was in its possession or known by such recipient (as evidenced by written records) without restriction prior
to receipt from the Company, (iv) was rightfully disclosed to such recipient by a third party without restriction or (v) was independently developed (as evidenced by written records) without any use of the Company’s confidential
information. Furthermore, nothing contained herein shall prevent any Holder or Permitted Disclosee (as defined below) from (a) entering into any business, entering into any agreement with a third party, or investing in or engaging in investment
discussions with any other company (whether or not competitive with the Company), provided that such Holder or Permitted Disclosee does not, except as permitted in accordance with this Section 3.4, disclose any proprietary or confidential
information of the Company in connection with such activities, or (b) making any disclosures required by law, rule, regulation or court or other governmental order. Notwithstanding the foregoing, any such Holder may disclose such proprietary or
confidential information to any former, current or prospective partner, affiliated company, limited partner, general partner or management company of such Holder (or any employee or representative of any of the foregoing) (each of the foregoing
persons, a “Permitted Disclosee”) or legal counsel, accountants or representatives for such Holder or Permitted Disclosee, so long as such Permitted Disclosees are subject to equivalent confidentiality obligations. Notwithstanding
the foregoing confidentiality provisions, a Holder (and any of the Holder’s respective employees, representatives, or other agents) may disclose to any and all persons, without limitation of any kind, the tax treatment and tax structure of the
transaction contemplated by the Purchase Agreement and all materials of any kind (including opinions or other tax analyses) that are provided relating to such tax treatment and tax structure. In addition, at no time will a Holder be subject to any
restriction concerning its consultation with its tax advisors regarding the tax treatment or tax structure of the transaction contemplated by the Purchase Agreement. 
 3.5 Reservation of Common Stock. The Company will at all times reserve and keep available, solely for issuance and delivery upon the conversion of the Preferred Stock, all Common Stock issuable from time
to time upon such conversion. 
 3.6 Stock Vesting. Unless otherwise approved by the Board of Directors, all stock options and
other stock equivalents issued after the date of this Agreement to employees, directors, consultants and other service providers shall be subject to vesting as follows: (a) twenty-five percent (25%) of such stock shall vest at the end of
the first year following the earlier of the date of issuance or such person’s services commencement date with the company, and (b) seventy-five percent (75%) of such stock shall vest over the remaining three (3) years. With
respect to any shares of stock purchased by any such person, the Company’s repurchase 
  

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option shall provide that upon such person’s termination of employment or service with the Company, with or without cause, the Company or its assignee shall have the option to purchase at
cost any unvested shares of stock held by such person. 
 3.7 Proprietary Information and Inventions Agreement. The Company
shall require all employees and consultants to execute and deliver the Company’s standard form Proprietary Information and Inventions Agreement. 
 3.8 Approval of Director/Management Transactions. The Company shall not, without the approval of a majority of the non-interested directors, authorize or enter into any transactions with any director or
management employee, or such director’s or employee’s immediate family. 
 3.9 Approval of Maxygen Transactions. From
and after October 1, 2002, the Company has not and shall not authorize or enter into any contracts or agreements with Maxygen, Inc. (“Maxygen”) or its Affiliates without the approval of a majority of the non-interested
directors. 
 3.10 Directors’ Liability and Indemnification. The Company’s Certificate of Incorporation and Bylaws
shall provide (a) for elimination of the liability of directors to the maximum extent permitted by law and (b) for indemnification of directors for acts on behalf of the Company to the maximum extent permitted by law. In addition, the
Company shall enter into and at all times maintain indemnification contracts substantially in the form attached as Exhibit B hereto with each of its directors to indemnify such directors to the maximum extent permissible under Delaware law

 3.11 Compensation Committee. The Company shall maintain a compensation committee of the Board of Directors. The approval of
the compensation committee will be required to (i) hire or terminate any Senior Officer, (ii) change the base salary of any Senior Officer or (iii) grant any cash bonus to any Senior Officer. 
 3.12 Budget Approval. The Company shall not, without the approval of the Board of Directors, approve any annual budget of the Company or any
formal amendment thereto. 
 3.13 Observer Rights. As long as Biomedical Sciences Investment Fund Pte Ltd
(“Bio*One”) owns not less than fifty percent (50%) of the number of shares of Series D Preferred Stock (or an equivalent amount of Common Stock issued upon conversion thereof) originally purchased by Bio*One, the Company
shall invite a representative of Bio*One to attend all meetings of its Board of Directors in a nonvoting observer capacity and, in this respect, shall give such representative copies of all notices, minutes, consents and other materials that it
provides to its directors; provided, however, that such representative shall agree to hold in confidence and trust and to act in a fiduciary manner with respect to all information so provided; and, provided further, that
the Company reserves the right to withhold any information and to exclude such representative from any meeting or portion thereof (i) to protect confidential proprietary information, or (ii) if access to such information or attendance at
such meeting could adversely affect the attorney-client privilege between the Company and its counsel or would result in disclosure of trade secrets to such representative or if such Investor or its representative is or is affiliated with a direct
competitor of the Company. 
  

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 3.14 Termination of Covenants. All covenants of the Company contained in Section 3 of
this Agreement shall expire and terminate as to each Investor upon the earlier of (i) the effective date of the registration statement pertaining to the Initial Offering that results in the Preferred Stock being converted into Common Stock or
(ii) upon (a) the sale, lease or other disposition of all or substantially all of the assets of the Company or (b) an acquisition of the Company by another corporation or entity by consolidation, merger or other reorganization in
which the holders of the Company’s outstanding voting stock immediately prior to such transaction own, immediately after such transaction, securities representing less than fifty percent (50%) of the voting power of the corporation or
other entity surviving such transaction, provided, however, that this Section 3.14(ii)(b) shall not apply to a merger effected exclusively for the purpose of changing the domicile of the Company (a “Change in
Control”). 
 SECTION 4. SUBSCRIPTION RIGHT 
 4.1 Subsequent Offerings. Each Investor shall have a subscription right to purchase its pro rata share of all Equity Securities, as defined below, that the Company may, from time to time, propose
to sell and issue after the date of this Agreement, other than the Equity Securities excluded by Section 4.6 hereof. Each Investor’s pro rata share is equal to the ratio of (a) the sum of the number of shares of the
Company’s Common Stock issued or issuable upon conversion of the Series B Stock, the Series C Stock, the Series D Stock, the Series E Stock and/or the Series F Stock which such Investor is deemed to be a holder immediately prior to the issuance
of such Equity Securities plus the number of shares of Common Stock issuable upon the exercise of warrants or options held by such Investor to (b) the total number of shares of the Company’s outstanding Common Stock (including all shares
of Common Stock issued or issuable upon conversion of the Shares or upon the exercise of any outstanding warrants or options) immediately prior to the issuance of the Equity Securities. The term “Equity Securities” shall mean
(i) any Common Stock, Shares or other security of the Company, (ii) any security convertible, with or without consideration, into any Common Stock, Shares or other security (including any option to purchase such a convertible security),
(iii) any security carrying any warrant or right to subscribe to or purchase any Common Stock, Shares or other security or (iv) any such warrant or right. 
 4.2 Exercise of Rights. If the Company proposes to issue any Equity Securities, it shall give each Investor written notice (“Notice”) of its bona fide intention, describing the Equity
Securities, the price and the terms and conditions upon which the Company proposes to issue the same. Each Investor shall have fifteen (15) days from the giving of such Notice to agree to purchase up to that portion of such Equity Securities
that equals the proportion that the number of shares of Common Stock issued and held, or issuable upon conversion of the Series B Stock, the Series C Stock, the Series D Stock, the Series E Stock and/or the Series F Stock then held by such Investor
bears to the total number of shares of Common Stock issued and held, or issuable upon conversion of the Series B Stock, the Series C Stock, the Series D Stock, the Series E Stock and/or the Series F Stock then outstanding, for the price and upon the
terms and conditions specified in the Notice by giving written notice to the Company and stating therein the quantity of Equity Securities to be purchased. The Company shall promptly, in writing, inform each Investor that purchases all the shares
available to it (“Fully Exercising Investor”) of any other Investor’s failure to do likewise. During the ten (10) day period commencing after receipt of such information, each Fully Exercising Investor shall be entitled to
obtain that portion of the 
  

 18 

 
shares subject to such subscription right and not subscribed for by the Investors that is equal to the proportion that the number of shares of Common Stock issued and held, or issuable upon
conversion of the Series B Stock, the Series C Stock, the Series D Stock, the Series E Stock and/or the Series F Stock then held, by such Fully Exercising Investor bears to the total number of shares of Common Stock issued and held, or issuable upon
conversion of Series B Stock, the Series C Stock, the Series D Stock, the Series E Stock and the Series F Stock then held, by all Fully Exercising Investors who wish to purchase some of the unsubscribed shares. Notwithstanding the foregoing, the
Company shall not be required to offer or sell such Equity Securities to any Investor who would cause the Company to be in violation of applicable federal securities laws by virtue of such offer or sale. 
 4.3 Issuance of Equity Securities to Other Persons. If the Investors fail to exercise in full the subscription rights, the Company shall
have ninety (90) days thereafter to sell the Equity Securities in respect of which the Investor’s rights were not exercised, at a price and upon general terms and conditions materially no more favorable to the purchasers thereof than
specified in the Company’s notice to the Investors pursuant to Section 4.2 hereof. If the Company has not sold such Equity Securities within ninety (90) days of the notice provided pursuant to Section 4.2, the Company shall not
thereafter issue or sell any Equity Securities, without first offering such securities to the Investors in the manner provided above. 
 4.4 Termination and Waiver of Subscription Rights. The subscription rights established by this Section 4 shall not apply to, and shall terminate upon the earlier of (i) the effective date of the registration statement pertaining
to the Company’s Initial Offering or (ii) a Change in Control. 
 4.5 Transfer of Subscription Rights. The
subscription rights of each Investor under this Section 4 may be transferred to the same persons described in Section 2.10, and shall be subject to the same restrictions, as any transfer of registration rights pursuant to
Section 2.10. 
 4.6 Excluded Securities. The subscription rights established by this Section 4 shall have no
application to any of the following Equity Securities (the “Excluded Securities”): 
 (a) options, warrants or
other Common Stock purchase rights and the Common Stock issued pursuant to such options, warrants or other rights (as adjusted for any stock dividends, combinations, splits, recapitalizations and the like after the filing of the Company’s
Second Amended and Restated Certificate of Incorporation) issued or to be issued after the date of this Agreement to employees, officers or directors of, or consultants or advisors to the Company or any subsidiary pursuant to stock purchase or stock
option plans or other arrangements, where the primary purpose of such is not to raise additional equity capital; 
 (b) stock
issuable pursuant to any rights or agreements outstanding as of the date of this Agreement, options and warrants outstanding as of the date of this Agreement; and stock issued pursuant to any such rights or agreements granted after the date of this
Agreement; provided, however, that the subscription rights established by this Section 4 applied with respect to the initial sale or grant by the Company of such rights or agreements; 
  

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 (c) any Equity Securities issued pursuant to a merger, consolidation, acquisition or similar
business combination approved by the Board of Directors; 
 (d) shares of Common Stock issued in connection with any stock
split, stock dividend or recapitalization by the Company; 
 (e) shares of Common Stock issued upon conversion of the Shares;

 (f) any Equity Securities issued pursuant to any equipment leasing, real property leasing or loan arrangement, or debt
financing from a bank or similar financial or lending institution approved by the Board of Directors; 
 (g) any Equity
Securities issued pursuant to any licensing transaction approved by the Board of Directors; and 
 (h) any Equity Securities
issued in connection with strategic alliances, joint ventures, manufacturing, marketing or distribution arrangements or technology transfer or development arrangements; provided, however, that such strategic transactions
and the issuance of shares therein, has been approved by the Company’s Board of Directors. 
 4.7 Waiver of Subscription
Rights To the extent that any Investor is deemed to have had subscription rights with respect to the Series F Preferred Stock issued pursuant to the terms of the Purchase Agreement, each Investor hereby waives any and all such subscription rights
pursuant to this Section 4, including any notice provisions relating thereto, on behalf of all Investors, with respect to the issuance of the Series F Preferred Stock pursuant to the Purchase Agreement. 
 SECTION 5. MISCELLANEOUS. 
 5.1 Governing Law. This Agreement shall be governed by and construed under the laws of the State of California as applied to agreements among California residents entered into and to be performed entirely within California. 
 5.2 Survival. The representations, warranties, covenants, and agreements made herein shall survive the closing of the transactions
contemplated hereby. All statements as to factual matters contained in any certificate or other instrument delivered by or on behalf of the Company pursuant hereto in connection with the transactions contemplated hereby shall be deemed to be
representations and warranties by the Company hereunder solely as of the date of such certificate or instrument. 
 5.3
Successors and Assigns. Except as otherwise expressly provided herein, the provisions hereof shall inure to the benefit of, and be binding upon, the successors, assigns, heirs, executors, and administrators of the parties hereto and shall inure to
the benefit of and be enforceable by each person who shall be a holder of Registrable Securities from time to time; provided, however, that prior to the receipt by the Company of adequate written notice of the transfer of any Registrable
Securities specifying the full name and address of the transferee, the Company may deem and treat the person listed as the holder of such shares in its records as the absolute owner and holder of such shares for all purposes, including the payment
of dividends or any redemption price. 
  

 20 

 5.4 Entire Agreement . This Agreement, the Exhibits and Schedules hereto, the Purchase
Agreement and the other documents delivered pursuant thereto constitute the full and entire understanding and agreement between the parties with regard to the subjects hereof and no party shall be liable or bound to any other in any manner by any
representations, warranties, covenants and agreements except as specifically set forth herein and therein. 
 5.5 Severability.
In the event one or more of the provisions of this Agreement should, for any reason, be held to be invalid, illegal or unenforceable in any respect, such invalidity, illegality, or unenforceability shall not affect any other provisions of this
Agreement, and this Agreement shall be construed as if such invalid, illegal or unenforceable provision had never been contained herein. 
 5.6 Amendment and Waiver. 
 (a) Except as otherwise expressly provided, this
Agreement may be amended or modified only upon the written consent of (i) the Company and (ii) the holders of at least a majority of the Preferred Stock, voting together as a single class on an as-converted basis and including any Common
Stock issued upon conversion; provided, however, that no amendment of this Agreement shall materially and adversely affect the rights of an Investor in a manner that materially and disproportionately discriminates against such Investor
in relation to the other Investors without such Investor’s written consent; provided, further, however, that the addition of new parties to this Agreement or the proportionate adjustment in rights that would result from adding new
parties shall not be deemed to be amendments which materially and disproportionately discriminate against such Investor. 
 (b)
Except as otherwise expressly provided, the obligations of the Company and the rights of the Holders under this Agreement may be waived only with the written consent of (i) the Company and (ii) the holders of at least a majority of the
Preferred Stock voting together as a single class on an as-converted basis and including any Common Stock issued upon conversion; provided, however, that no waiver of this Agreement shall materially and adversely affect the rights of
an Investor in a manner that materially and disproportionately discriminates against such Investor in relation to the other Investors without such Investor’s written consent; provided, further, however, that the addition of new
parties to this Agreement or the proportionate adjustment in rights that would result from adding new parties shall not be deemed to be a waiver which materially and disproportionately discriminate against such Investor. 
 (c) For the purposes of determining the number of Holders or Investors entitled to vote or exercise any rights hereunder, the Company shall
be entitled to rely solely on the list of record holders of its stock as maintained by or on behalf of the Company. 
 5.7
Delays or Omissions. It is agreed that no delay or omission to exercise any right, power, or remedy accruing to any Holder, upon any breach, default or noncompliance of the Company under this Agreement shall impair any such right, power, or remedy,
nor shall it be construed to be a waiver of any such breach, default or noncompliance, or any acquiescence therein, or of any similar breach, default or noncompliance thereafter occurring. It is further agreed that any waiver, permit, consent, or
approval of any kind or character on any Holder’s part of any breach, default or noncompliance under the Agreement or any waiver on such 
  

 21 

 
Holder’s part of any provisions or conditions of this Agreement must be in writing and shall be effective only to the extent specifically set forth in such writing. All remedies, either
under this Agreement, by law, or otherwise afforded to Holders, shall be cumulative and not alternative. 
 5.8 Notices. All
notices required or permitted hereunder shall be in writing and shall be deemed effectively given: (a) upon personal delivery to the party to be notified, (b) when sent by confirmed facsimile if sent during normal business hours of the
recipient; if not, then on the next business day, (c) five (5) days after having been sent by registered or certified mail, return receipt requested, postage prepaid, or (d) one (1) day after deposit with a nationally recognized
overnight courier, specifying next day delivery, with written verification of receipt. All communications shall be sent to the party to be notified at the address as set forth on the signature pages hereof or Exhibit A hereto or at such other
address as such party may designate by ten (10) days advance written notice to the other parties hereto. 
 5.9
Attorneys’ Fees. In the event that any suit or action is instituted to enforce any provision in this Agreement, the prevailing party in such dispute shall be entitled to recover from the losing party all fees, costs and expenses of enforcing
any right of such prevailing party under or with respect to this Agreement, including without limitation, such reasonable fees and expenses of attorneys and accountants, which shall include, without limitation, all fees, costs and expenses of
appeals. 
 5.10 Titles and Subtitles. The titles of the sections and subsections of this Agreement are for convenience of
reference only and are not to be considered in construing this Agreement. 
 5.11 Additional Investors. Notwithstanding anything
to the contrary contained herein, if the Company shall issue additional shares of its Preferred Stock pursuant to the Purchase Agreement, any purchaser of such shares of Preferred Stock may become a party to this Agreement by executing and
delivering an additional counterpart signature page to this Agreement and shall be deemed an “Investor,” a “Holder” and a party hereunder. Notwithstanding anything to the contrary contained herein, if the Company shall issue
Equity Securities in accordance with Section 4.6 (c), (f), (g) or (h) of this Agreement, any purchaser of such Equity Securities may become a party to this Agreement by executing and delivering an additional counterpart signature page
to this Agreement and shall be deemed an “Investor,” a “Holder” and a party hereunder. 
 5.12 Counterparts.
This Agreement may be executed in any number of counterparts, each of which shall be an original, but all of which together shall constitute one instrument. 
 5.13 Aggregation of Stock. All shares of Registrable Securities held or acquired by Affiliates or persons or persons or entities under common management or control shall be aggregated together for the
purpose of determining the availability of any rights under this Agreement. 
 5.14 Specific Performance. The parties hereto
hereby declare that it is impossible to measure in money the damages that will accrue to a party hereto or to their heirs, personal representatives, or assigns by reason of a failure to perform any of the obligations under this Agreement, that such
a breach would cause irreparable harm to the parties and agree that the 
  

 22 

 
terms of this Agreement shall be specifically enforceable by equitable remedies, including, but not limited to, temporary, preliminary and injunctive relief, specific performance and the right to
compel the breaching party to vote his or its capital stock of the Company in accordance with the provisions of the Agreement. If any party hereto or his heirs, personal representatives, or assigns institutes any action or proceeding to specifically
enforce the provisions hereof, any person against whom such action or proceeding is brought hereby waives the claim or defense therein that such party or such personal representative has an adequate remedy at law, and such person shall not offer in
any such action or proceeding the claim or defense that such remedy at law exists. 
 (Signature Page Follows) 
  

 23 

 IN WITNESS WHEREOF, the parties hereto
have executed this FIFTH AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT as of the date set forth in the first paragraph hereof.

 CODEXIS, INC. 

			
		
	By:	 	 /s/ Alan Shaw

	Name:	 	Alan Shaw
	Title:	 	President

 SIGNATURE PAGE TO 
 FIFTH AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT 

 IN WITNESS WHEREOF, the parties hereto
have executed this FIFTH AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT as of the date set forth in the first paragraph hereof.

 MAXYGEN, INC. 

			
		
	By:	 	 /s/ Russell J. Howard

	Name:	 	Russell J. Howard
	Title:	 	CEO

 SIGNATURE PAGE TO 
 FIFTH AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT 

 IN WITNESS WHEREOF, the parties hereto
have executed this FIFTH AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT as of the date set forth in the first paragraph
hereof. 
 MALAYSIAN LIFE SCIENCES CAPITAL FUND, LTD. 

			
		
	By:	 	 /s/ Dr. Roger Earl Wyse

		 	Malaysian Life Sciences Capital Fund Management
		 	Company Ltd, its Manager
	Name:	 	Dr. Roger Earl Wyse
	Title:	 	Co-Chairman

 SIGNATURE PAGE TO 
 FIFTH AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT 

 IN WITNESS WHEREOF, the parties hereto
have executed this FIFTH AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT as of the date set forth in the first paragraph hereof.

 CMEA VENTURES LIFE SCIENCES 2000, L.P. 

			
		
	By:	 	 /s/ Karl Handelsman

	Name:	 	Karl Handelsman
	Title:	 	General Partner

 CMEA VENTURES LIFE SCIENCES 2000, CIVIL LAW PARTNERSHIP

			
		
	By:	 	 /s/ Karl Handelsman

	Name:	 	Karl Handelsman
	Title:	 	General Partner

 SIGNATURE PAGE TO 
 FIFTH AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT 

 IN WITNESS WHEREOF, the parties hereto
have executed this FIFTH AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT as of the date set forth in the first paragraph hereof.

 FIRSTMARK III, L.P. 
 (formerly, Pequot Private Equity Fund III, L.P.) 

			
		
	By:	 	 /s/ [Illegible]

	Name:	 	
	Title:	 	

 FIRSTMARK III Offshore Partners, L.P. 
 (formerly, Pequot Offshore Private Equity Partners III, L.P.) 

			
		
	By:	 	 /s/ [Illegible]

	Name:	 	
	Title:	 	

 SIGNATURE PAGE TO 
 FIFTH AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT 

 IN WITNESS WHEREOF, the parties hereto
have executed this FIFTH AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT as of the date set forth in the first paragraph hereof.

 PFIZER IRELAND PHARMACEUTICALS 
 (formerly, Pfizer Overseas Pharmaceuticals) 

			
		
	By:	 	 /s/ Paul Duffy

	Name:	 	Paul Duffy
	Title:	 	Director

 SIGNATURE PAGE TO 
 FIFTH AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT 

 IN WITNESS WHEREOF, the parties hereto
have executed this FIFTH AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT as of the date set forth in the first paragraph hereof.

 BIOMEDICAL SCIENCES INVESTMENT FUND PTE LTD 

			
		
	By:	 	 /s/ Chu Swee Yeok

	Name:	 	Chu Swee Yeok
	Title:	 	Director

 SIGNATURE PAGE TO 
 FIFTH AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT 

 IN WITNESS WHEREOF, the parties hereto
have executed this FIFTH AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT as of the date set forth in the first paragraph hereof.

 ROBERT W. CRANMER-BROWN 

			
		
	By:	 	 /s/ Robert W. Cranmer-Brown

	Name:	 	Robert W. Cranmer-Brown

 SIGNATURE PAGE TO 
 FIFTH AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT 

 IN WITNESS WHEREOF, the parties hereto
have executed this FIFTH AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT as of the date set forth in the first paragraph hereof.

 THE CONUS FUND, L.P. 

			
		
	By:	 	 /s/ Andrew D. Zacks

	Name:	 	Andrew D. Zacks
	Title:	 	 Managing Member, General Partner
 Conus Capital, LLC

 THE CONUS FUND OFFSHORE MASTER FUND LTD. 

			
		
	By:	 	 /s/ Andrew D. Zacks

	Name:	 	Andrew D. Zacks
	Title:	 	 Managing Director, Investment Manager
 Conus Partners, Inc.

 THE CONUS FUND (QP) L.P. 

			
		
	By:	 	 /s/ Andrew D. Zacks

	Name:	 	Andrew D. Zacks
	Title:	 	 Managing Member, General Partner
 Conus Capital, LLC

 SIGNATURE PAGE TO 
 FIFTH AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT 

 IN WITNESS WHEREOF, the parties hereto
have executed this FIFTH AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT as of the date set forth in the first paragraph hereof.

 EQUILON ENTERPRISES LLC DBA SHELL OIL PRODUCTS US 

			
		
	By:	 	 /s/ Richard M. Oblath

	Name:	 	Richard M. Oblath
	Title:	 	Attorney in Fact

 SIGNATURE PAGE TO 
 FIFTH AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT 

 IN WITNESS WHEREOF, the parties hereto
have executed this FIFTH AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT as of the date set forth in the first paragraph hereof.

 COOK INLET REGION, INC. 

			
		
	By:	 	 /s/ Stig A. Colberg

	Name:	 	Stig A. Colberg
	Title:	 	Vice President, Business Development

 SIGNATURE PAGE TO 
 FIFTH AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT 

 IN WITNESS WHEREOF, the parties hereto
have executed this FIFTH AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT as of the date set forth in the first paragraph hereof.

 MALAYSIAN TECHNOLOGY DEVELOPMENT CORPORATION SDN. BHD. 
  

			
	By:	 	 /s/ Norhalim Yunus

	Name:	 	Norhalim Yunus
	Title:	 	

 SIGNATURE PAGE TO 
 FIFTH AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT 

 IN WITNESS WHEREOF, the parties hereto
have executed this FIFTH AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT as of the date set forth in the first paragraph hereof.

 GREENER CAPITAL PARTNERS, L.P. 

			
		
	By:	 	Greener Capital Equity, L.L.C.
		 	Its general partner
		
	By:	 	 /s/ Charles H. Finnie

	Name:	 	Charles H. Finnie
	Title:	 	 Managing Partner
 Greener
Capital Partners, L.P.

 SIGNATURE PAGE TO 
 FIFTH AMENDED AND RESTATED INVESTOR RIGHTS AGREEMENT 

 EXHIBIT A 
 SCHEDULE OF INVESTORS 
 Maxygen, Inc. 
 CMEA Ventures Life Sciences 2000, L.P. 
 CMEA
Ventures Life Sciences 2000, Civil Law Partnership 
 CTTV Investments LLC 
 FirstMark Capital III, L.P. 
 FirstMark Capital III Offshore Partners, L.P. 
 Pfizer Overseas Pharmaceuticals 
 Biomedical
Sciences Investment Fund Pte Ltd 
 Robert W. Cranmer-Brown 
 The Conus Fund, L.P. 
 The Conus Fund Offshore Master Fund Ltd. 
 The Conus Fund (QP) L.P. 
 Equilon Enterprises LLC
dba Shell Oil Products US 
 GPSF Securities Inc. 
 Malaysian Life Sciences Capital Fund, Ltd. 
 AFAC Equity, L.P. 
 Cook Inlet Region, Inc. 
 Malaysian Technology
Development Corporation Sdn. Bhd. 
 Greener Capital Partners, L.P. 

 EXHIBIT B 
 FORM OF INDEMNIFICATION AGREEMENT 

 INDEMNIFICATION AGREEMENT 
 This Indemnification Agreement (the “Agreement”) is made as of [DATE] by and between Codexis, Inc., a Delaware corporation
(the “Company”), and [INDEMNITEE] (the “Indemnitee”). 
 RECITALS 
 The Company and Indemnitee recognize the increasing difficulty in obtaining liability insurance for directors, officers and key employees,
the significant increases in the cost of such insurance and the general reductions in the coverage of such insurance. The Company and Indemnitee further recognize the substantial increase in corporate litigation in general, subjecting directors,
officers and key employees to expensive litigation risks at the same time as the availability and coverage of liability insurance has been severely limited. Indemnitee does not regard the current protection available as adequate under the present
circumstances, and Indemnitee and agents of the Company may not be willing to continue to serve as agents of the Company without additional protection. The Company desires to attract and retain the services of highly qualified individuals, such as
Indemnitee, and to indemnify its directors, officers and key employees so as to provide them with the maximum protection permitted by law. The Company and Indemnitee desire to terminate any and all prior indemnification agreements and accept the
rights and covenants hereof in lieu of their rights and covenants under such prior agreements. 
 AGREEMENT

 In consideration of the mutual promises made in this Agreement, and for other good and valuable consideration,
receipt of which is hereby acknowledged, the Company and Indemnitee hereby agree as follows: 
 1.
Indemnification. 
 (a) Third Party Proceedings. The Company shall indemnify Indemnitee if Indemnitee is
or was a party to or witness or other participant in or is threatened to be made a party to or witness or other participant in any threatened, pending or completed action, suit, proceeding or alternative dispute resolution mechanism, or any hearing,
inquiry or investigation that might reasonably be expected to lead to the institution of any such action, suit, proceeding or alternative dispute resolution mechanism, whether civil, criminal, administrative or investigative (other than an action by
or in the right of the Company) by reason of (or arising in part out of) any event or occurrence related to the fact that Indemnitee is or was a director, officer, employee, agent, fiduciary or controlling person of the Company, or any subsidiary of
the Company, by reason of any action or inaction on the part of Indemnitee while an officer, director, employee, agent, fiduciary or controlling person or by reason of the fact that Indemnitee is or was serving at the request of the Company as a
director, officer, employee, agent, fiduciary or controlling person of another corporation, partnership, joint venture, trust or other enterprise, against expenses (including attorneys’ fees), judgments, fines and amounts paid in settlement (if
such settlement is approved in advance by the Company, which approval shall not be unreasonably

 
withheld, conditioned or delayed) actually and reasonably incurred by Indemnitee in connection with such action, suit, proceeding or alternative dispute resolution mechanism if Indemnitee acted
in good faith and in a manner Indemnitee reasonably believed to be in or not opposed to the best interests of the Company, and, with respect to any criminal action or proceeding, had no reasonable cause to believe Indemnitee’s conduct was
unlawful. The termination of any action, suit or proceeding by judgment, order, settlement, conviction, or upon a plea of nolo contendere or its equivalent, shall not, of itself, create a presumption that Indemnitee did not act in good faith and in
a manner which Indemnitee reasonably believed to be in or not opposed to the best interests of the Company, or, with respect to any criminal action or proceeding, that Indemnitee had reasonable cause to believe that Indemnitee’s conduct was
unlawful. 
 (b) Proceedings By or in the Right of the Company. The Company shall indemnify Indemnitee if
Indemnitee was or is a party to or other witness or participant in or is threatened to be made a party to or witness or other participant in any threatened, pending or completed action, suit, proceeding or alternative dispute resolution mechanism,
or any hearing, inquiry or investigation that might reasonably be expected to lead to the institution of any such action, suit, proceeding or alternative dispute resolution mechanism, by or in the right of the Company or any subsidiary of the
Company to procure a judgment in its favor by reason of the fact that Indemnitee is or was a director, officer, employee, agent fiduciary or controlling person of the Company, or any subsidiary of the Company, by reason of any action or inaction on
the part of Indemnitee while an officer, director, employee, agent, fiduciary or controlling person or by reason of the fact that Indemnitee is or was serving at the request of the Company as a director, officer, employee, agent, fiduciary or
controlling person of another corporation, partnership, joint venture, trust or other enterprise, against expenses (including attorneys’ fees) and, to the fullest extent permitted by law, amounts paid in settlement (if such settlement is
approved in advance by the Company, which approval shall not be unreasonably withheld, conditioned or delayed), in each case to the extent actually and reasonably incurred by Indemnitee in connection with the defense or settlement of such action,
suit, proceeding or alternative dispute resolution mechanism if Indemnitee acted in good faith and in a manner Indemnitee reasonably believed to be in or not opposed to the best interests of the Company and its stockholders, except that no
indemnification shall be made in respect of any claim, issue or matter as to which Indemnitee shall have been finally adjudicated by court order or judgment (after all appeals) to be liable to the Company in the performance of Indemnitee’s duty
to the Company and its stockholders unless and only to the extent that the court in which such action or proceeding is or was pending shall determine upon application that, in view of all the circumstances of the case, Indemnitee is fairly and
reasonably entitled to indemnity for such expenses which such court shall deem proper. 
 (c) Contribution.
If the indemnification provided for in Section 1(a) or Section 1(b) above for any reason is held by a court of competent jurisdiction to be unavailable to Indemnitee in respect of any losses, claims, damages, expenses or liabilities
referred to therein, then the Company, in lieu of indemnifying Indemnitee thereunder, shall contribute to the amount paid or payable by Indemnitee as a result of such losses, claims, damages, expenses or liabilities (i) in such proportion as is
appropriate to reflect the relative benefits received by the Company and Indemnitee, or (ii) if the allocation provided by clause (i) above is not permitted by applicable law, in such proportion as is appropriate to reflect not only the
relative benefits

 
referred to in clause (i) above but also the relative fault of the Company and Indemnitee in connection with the action or inaction that resulted in such losses, claims, damages, expenses or
liabilities, as well as any other relevant equitable considerations. In connection with the registration of the Company’s securities, the relative benefits received by the Company and Indemnitee shall be deemed to be in the same respective
proportions that the net proceeds from the offering (before deducting expenses) received by the Company and Indemnitee, in each case as set forth in the table on the cover page of the applicable prospectus, bear to the aggregate public offering
price of the securities so offered. The relative fault of the Company and Indemnitee shall be determined by reference to, among other things, whether the untrue or alleged untrue statement of a material fact or the omission or alleged omission to
state a material fact relates to information supplied by the Company or Indemnitee and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission. 
 The Company and Indemnitee agree that it would not be just and equitable if contribution pursuant to this Section 1(c) were determined
by pro rata or per capita allocation or by any other method of allocation that does not take account of the equitable considerations referred to in the immediately preceding paragraph. In connection with the registration of the Company’s
securities, other than in the case of fraud or willful misconduct, in no event shall Indemnitee be required to contribute any amount under this Section 1(c) in excess of the lesser of: (i) that proportion of the total of such losses,
claims, damages or liabilities that are indemnified against, equal to the proportion of the total securities sold under such registration statement that is being sold by Indemnitee or (ii) the proceeds received by Indemnitee from its sale of
securities under such registration statement. No person found guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act of 1933, as amended) shall be entitled to contribution from any person who was not
found guilty of such fraudulent misrepresentation. 
 (d) Mandatory Payment of Expenses. To the extent that
Indemnitee has been successful on the merits or otherwise in defense of any action, suit or proceeding referred to in Section 1(a) or Section 1(b) or the defense of any claim, issue or matter therein, Indemnitee shall be indemnified
against expenses (including attorneys’ fees) actually and reasonably incurred by Indemnitee in connection therewith. 
 2.
No Employment Rights. Nothing contained in this Agreement is intended to create in Indemnitee any right to continued employment. 
 3. Expenses; Indemnification Procedure. 
 (a)
Advancement of Expenses. The Company shall advance all expenses incurred by Indemnitee in connection with the investigation, defense, settlement or appeal of any civil or criminal action, suit, proceeding or alternative dispute
resolution mechanism referred to in Section l(a) or Section 1(b) hereof (including amounts actually paid in settlement of any such action, suit or proceeding). Indemnitee hereby undertakes to repay such amounts advanced only if, and to the
extent that, it shall ultimately be determined that Indemnitee is not entitled to be indemnified by the Company as authorized hereby. Indemnitee’s obligation to reimburse the Company for any expenses shall be unsecured and no interest shall be
charged thereon. 

 (b) Notice/Cooperation by Indemnitee. Indemnitee shall, as a condition
precedent to his or her right to be indemnified under this Agreement, give the Company notice in writing as soon as practicable of any claim made against Indemnitee for which indemnification will or could be sought under this Agreement. Notice to
the Company shall be directed to the Chief Executive Officer of the Company and shall be given in accordance with the provisions of Section 12(d) below. In addition, Indemnitee shall give the Company such information and cooperation as it may
reasonably require and as shall be within Indemnitee’s power. 
 (c) Procedure. Any indemnification and
advances provided for in Section 1 and this Section 3 shall be made no later than twenty (20) days after receipt of the written request of Indemnitee. If a claim under this Agreement, under any statute, or under any provision of the
Company’s Certificate of Incorporation or Bylaws providing for indemnification, is not paid in full by the Company within twenty (20) days after a written request for payment thereof has first been received by the Company, Indemnitee may,
but need not, at any time thereafter bring an action against the Company to recover the unpaid amount of the claim and, subject to Section 11 of this Agreement, Indemnitee shall also be entitled to be paid for the expenses (including
attorneys’ fees) of bringing such action. It shall be a defense to any such action (other than an action brought to enforce a claim for expenses incurred in connection with any action, suit or proceeding in advance of its final disposition)
that Indemnitee has not met the standards of conduct which make it permissible under applicable law for the Company to indemnify Indemnitee for the amount claimed, but the burden of proving such defense shall be on the Company and Indemnitee shall
be entitled to receive interim payments of expenses pursuant to Section 3(a) unless and until such defense may be finally adjudicated by court order or judgment from which no further right of appeal exists. It is the parties’ intention
that if the Company contests Indemnitee’s right to indemnification, the question of Indemnitee’s right to indemnification shall be for the court to decide, and neither the failure of the Company (including its Board of Directors, any
committee or subgroup of the Board of Directors, independent legal counsel, or its stockholders) to have made a determination that indemnification of Indemnitee is proper in the circumstances because Indemnitee has met the applicable standard of
conduct required by applicable law, nor an actual determination by the Company (including its Board of Directors, any committee or subgroup of the Board of Directors, independent legal counsel, or its stockholders) that Indemnitee has not met such
applicable standard of conduct, shall create a presumption that Indemnitee has or has not met the applicable standard of conduct. 
 (d) Notice to Insurers. If, at the time of the receipt of a notice of a claim pursuant to Section 3(b) hereof, the Company has director and officer liability insurance in effect, the Company shall give prompt notice of
the commencement of such proceeding to the insurers in accordance with the procedures set forth in the respective policies. The Company shall thereafter take all necessary or desirable action to cause such insurers to pay, on behalf of the
Indemnitee, all amounts payable as a result of such proceeding in accordance with the terms of such policies. 
 (e)
Selection of Counsel. In the event the Company shall be obligated under Section 3(a) hereof to pay the expenses of any proceeding against Indemnitee, the Company, if appropriate, shall be entitled to assume the defense of such
proceeding, with counsel approved by Indemnitee, upon the delivery to Indemnitee of written notice of its election so to do. After delivery of such notice, approval of such counsel by Indemnitee and the retention of such

 
counsel by the Company, the Company will not be liable to Indemnitee under this Agreement for any fees of counsel subsequently incurred by Indemnitee with respect to the same proceeding, provided
that (i) Indemnitee shall have the right to employ counsel in any such proceeding at Indemnitee’s expense; and (ii) if (A) the employment of counsel by Indemnitee has been previously authorized by the Company, (B) Indemnitee
shall have reasonably concluded that there may be a conflict of interest between the Company and Indemnitee in the conduct of any such defense or (C) the Company shall not, in fact, have employed counsel to assume the defense of such
proceeding, then the fees and expenses of Indemnitee’s counsel shall be at the expense of the Company. 
 4.
Additional Indemnification Rights; Nonexclusivity. 
 (a) Scope. Notwithstanding any other provision of
this Agreement, the Company hereby agrees to indemnify the Indemnitee to the fullest extent permitted by law, notwithstanding that such indemnification is not specifically authorized by the other provisions of this Agreement, the Company’s
Certificate of Incorporation, the Company’s Bylaws or by statute. In the event of any change, after the date of this Agreement, in any applicable law, statute, or rule which expands the right of a Delaware corporation to indemnify a member of
its board of directors or an officer, such changes shall be deemed to be within the purview of Indemnitee’s rights and the Company’s obligations under this Agreement. In the event of any change in any applicable law, statute or rule which
narrows the right of a Delaware corporation to indemnify a member of its board of directors or an officer, such changes, to the extent not otherwise required by such law, statute or rule to be applied to this Agreement shall have no effect on this
Agreement or the parties’ rights and obligations hereunder. 
 (b) Nonexclusivity. The indemnification
provided by this Agreement shall not be deemed exclusive of any rights to which Indemnitee may be entitled under the Company’s Certificate of Incorporation, its Bylaws, any agreement, any vote of stockholders or disinterested members of the
Company’s Board of Directors, the General Corporation Law of the State of Delaware, or otherwise, both as to action in Indemnitee’s official capacity and as to action in another capacity while holding such office. The indemnification
provided under this Agreement shall continue as to Indemnitee for any action taken or not taken while serving in an indemnified capacity even though he or she may have ceased to serve in any such capacity at the time of any action, suit or other
covered proceeding. 
 5. Partial Indemnification. If Indemnitee is entitled under any provision of this Agreement
to indemnification by the Company for some or a portion of the expenses, judgments, fines or penalties actually or reasonably incurred in the investigation, defense, appeal or settlement of any civil or criminal action, suit or proceeding, but not,
however, for the total amount thereof, the Company shall nevertheless indemnify Indemnitee for the portion of such expenses, judgments, fines or penalties to which Indemnitee is entitled. 
 6. Mutual Acknowledgment. Both the Company and Indemnitee acknowledge that in certain instances, Federal law or public policy
may override applicable state law and prohibit the Company from indemnifying its directors and officers under this Agreement or otherwise. For example, the Company and Indemnitee acknowledge that the Securities and Exchange Commission (the
“SEC”) has taken the position that indemnification is not permissible for

 
liabilities arising under certain federal securities laws, and federal legislation prohibits indemnification for certain ERISA violations. Indemnitee understands and acknowledges that the Company
has undertaken or may be required in the future to undertake with the SEC to submit the question of indemnification to a court in certain circumstances for a determination of the Company’s right under public policy to indemnify Indemnitee.

 7. Officer and Director Liability Insurance. The Company shall, from time to time, make the good faith
determination whether or not it is practicable for the Company to obtain and maintain a policy or policies of insurance with reputable insurance companies providing the officers and directors of the Company with coverage for losses from wrongful
acts, or to ensure the Company’s performance of its indemnification obligations under this Agreement. Among other considerations, the Company will weigh the costs of obtaining such insurance coverage against the protection afforded by such
coverage. In all policies of director and officer liability insurance, Indemnitee shall be named as an insured in such a manner as to provide Indemnitee the same rights and benefits as are accorded to the most favorably insured of the Company’s
directors, if Indemnitee is a director; or of the Company’s officers, if Indemnitee is not a director of the Company but is an officer; or of the Company’s key employees, if Indemnitee is not an officer or director but is a key employee.
Notwithstanding the foregoing, the Company shall have no obligation to obtain or maintain such insurance if the Company determines in good faith that such insurance is not reasonably available, if the premium costs for such insurance are
disproportionate to the amount of coverage provided, if the coverage provided by such insurance is limited by exclusions so as to provide an insufficient benefit, or if Indemnitee is covered by similar insurance maintained by a parent or subsidiary
of the Company. 
 8. Severability. Nothing in this Agreement is intended to require or shall be construed as
requiring the Company to do or fail to do any act in violation of applicable law. The Company’s inability, pursuant to court order, to perform its obligations under this Agreement shall not constitute a breach of this Agreement. The provisions
of this Agreement shall be severable as provided in this Section 8. If this Agreement or any portion hereof shall be invalidated on any ground by any court of competent jurisdiction, then the Company shall nevertheless indemnify Indemnitee to
the full extent permitted by any applicable portion of this Agreement that shall not have been invalidated, and the balance of this Agreement not so invalidated shall be enforceable in accordance with its terms. 
 9. Exceptions. Any other provision herein to the contrary notwithstanding, the Company shall not be obligated pursuant to the
terms of this Agreement: 
 (a) Claims Initiated by Indemnitee. To indemnify or advance expenses to Indemnitee
with respect to proceedings or claims initiated or brought voluntarily by Indemnitee and not by way of defense, except with respect to proceedings brought to establish or enforce a right to indemnification under this Agreement or any other statute
or law or otherwise as required under Section 145 of the Delaware General Corporation Law, but such indemnification or advancement of expenses may be provided by the Company in specific cases if the Board of Directors finds it to be
appropriate; 
 (b) Lack of Good Faith. To indemnify Indemnitee for any expenses incurred by Indemnitee with
respect to any proceeding instituted by Indemnitee to enforce or interpret this Agreement, if a court of competent jurisdiction determines that each of the material assertions made by Indemnitee in such proceeding was not made in good faith or was
frivolous; 

 (c) Insured Claims. To indemnify Indemnitee for expenses or liabilities
of any type whatsoever (including, but not limited to, judgments, fines, ERISA excise taxes or penalties, and amounts paid in settlement) to the extent such expenses or liabilities have been paid directly to Indemnitee by an insurance carrier under
a policy of officers’ and directors’ liability insurance maintained by the Company; or 
 (d) Claims under
Section 16(b). To indemnify Indemnitee for expenses or the payment of profits arising from the purchase and sale by Indemnitee of securities in violation of Section 16(b) of the Securities Exchange Act of 1934, as amended, or any
similar successor statute. 
 10. Construction of Certain Phrases. 
 (a) For purposes of this Agreement, references to the “Company” shall include, in addition to the resulting corporation, any
constituent corporation (including any constituent of a constituent) absorbed in a consolidation or merger which, if its separate existence had continued, would have had power and authority to indemnify its directors, officers, and employees or
agents, so that if Indemnitee is or was a director, officer, employee or agent of such constituent corporation, or is or was serving at the request of such constituent corporation as a director, officer, employee or agent of another corporation,
partnership, joint venture, trust or other enterprise, Indemnitee shall stand in the same position under the provisions of this Agreement with respect to the resulting or surviving corporation as Indemnitee would have with respect to such
constituent corporation if its separate existence had continued. 
 (b) For purposes of this Agreement, references to
“other enterprises” shall include employee benefit plans; references to “fines” shall include any excise taxes assessed on Indemnitee with respect to an employee benefit plan; and references to “serving at
the request of the Company” shall include any service as a director, officer, employee or agent of the Company which imposes duties on, or involves services by, such director, officer, employee or agent with respect to an employee benefit
plan, its participants, or beneficiaries; and if Indemnitee acted in good faith and in a manner Indemnitee reasonably believed to be in the interest of the participants and beneficiaries of an employee benefit plan, Indemnitee shall be deemed to
have acted in a manner “not opposed to the best interests of the Company” as referred to in this Agreement. 
 11. Attorneys’ Fees. In the event that any action is instituted by Indemnitee under this Agreement to enforce or interpret any of the terms hereof, Indemnitee shall be entitled to be paid all court costs and expenses,
including reasonable attorneys’ fees, incurred by Indemnitee with respect to such action, unless as a part of such action, the court of competent jurisdiction determines that each of the material assertions made by Indemnitee as a basis for
such action were not made in good faith or were frivolous. In the event of an action instituted by or in the name of the Company under this Agreement or to enforce or interpret any of the terms of this Agreement, Indemnitee shall be entitled to be
paid all court costs and expenses, including attorneys’ fees, incurred by Indemnitee in defense of such action (including with respect to

 
Indemnitee’s counterclaims and cross-claims made in such action), unless as a part of such action the court determines that each of Indemnitee’s material defenses to such action were
made in bad faith or were frivolous. 
 12. Indemnification of Venture Capital Funds. If
(i) Indemnitee is affiliated with one or more venture capital funds that has invested in the Company (each a “VC Fund”), (ii) a VC Fund is a party to or a participant in any legal proceeding, and (iii) the VC Fund’s
involvement in the legal proceeding arises solely as a result of Indemnitee’s service to the Company as a director of the Company, then the VC Fund shall entitled to all of the indemnification rights and remedies under this Agreement to the
same extent as Indemnitee. 
 13. Miscellaneous. 
 (a) Governing Law. This Agreement and all acts and transactions pursuant hereto and the rights and obligations of the parties
hereto shall be governed, construed and interpreted in accordance with the laws of the State of Delaware, without giving effect to principles of conflict of law. 
 (b) Entire Agreement; Enforcement of Rights. This Agreement sets forth the entire agreement and understanding of the parties relating to the subject matter herein and supersedes all prior
agreements and understandings, oral, written and implied, between the parties hereto with respect to the subject matter herein. No modification of or amendment to this Agreement, nor any waiver of any rights under this Agreement, shall be effective
unless in writing signed by the parties to this Agreement. The failure by either party to enforce any rights under this Agreement shall not be construed as a waiver of any rights of such party. 
 (c) Construction. This Agreement is the result of negotiations between and has been reviewed by each of the parties hereto and
their respective counsel, if any; accordingly, this Agreement shall be deemed to be the product of all of the parties hereto, and no ambiguity shall be construed in favor of or against any one of the parties hereto. 
 (d) Notices. Any notice, demand or request required or permitted to be given under this Agreement shall be in writing and
shall be deemed sufficient when delivered personally or sent by telegram or forty-eight (48) hours after being deposited in the U.S. mail, as certified or registered mail, with postage prepaid, and addressed to the party to be notified at such
party’s address as set forth below or as subsequently modified by written notice. 
 (e) Counterparts. This
Agreement may be executed in two or more counterparts, each of which shall be deemed an original and all of which together shall constitute one instrument. 
 (f) Successors and Assigns. This Agreement shall be binding upon the Company and its successors and assigns, and inure to the benefit of Indemnitee and Indemnitee’s heirs, legal
representatives and assigns. 
 (g) Subrogation. In the event of payment under this Agreement, the Company
shall be subrogated to the extent of such payment to all of the rights of recovery of Indemnitee, who shall execute all documents required and shall do all acts that may be necessary to secure such rights and to enable the Company to effectively
bring suit to enforce such rights. 
 [Signature Page Follows] 

 The parties hereto have executed this Agreement as of the day and year set forth on the
first page of this Agreement. 
  

			
	CODEXIS, INC.
		
	By:	 	  

		 	ALAN SHAW
		 	President and Chief Executive Officer

  

			
	Address:	 	200 Penobscot Drive
		 	Redwood City, California 94063

  

			
	AGREED TO AND ACCEPTED:
	
	  

	[INDEMNITEE]	 	

  

			
	Address:	 	[ADDRESS]

 [CODEXIS, INC. INDEMNIFICATION AGREEMENT SIGNATURE PAGE]

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