Document:

EX-4.2

 Exhibit 4.2 

NKARTA, INC. 
 AMENDED
AND RESTATED INVESTORS’ RIGHTS AGREEMENT 
 August 27, 2019 

 TABLE OF CONTENTS 

 

									
	 	  	 	  	 	  	Page	 
	 1.
	  	Definitions	  	 	1	 
			
	 2.
	  	Registration Rights	  	 	5	 
				
		  	2.1	  	Demand Registration	  	 	5	 
		  	2.2	  	Company Registration	  	 	6	 
		  	2.3	  	Underwriting Requirements	  	 	6	 
		  	2.4	  	Obligations of the Company	  	 	7	 
		  	2.5	  	Furnish Information	  	 	9	 
		  	2.6	  	Expenses of Registration	  	 	9	 
		  	2.7	  	Delay of Registration	  	 	9	 
		  	2.8	  	Indemnification	  	 	9	 
		  	2.9	  	Reports Under Exchange Act	  	 	11	 
		  	2.10	  	Limitations on Subsequent Registration Rights	  	 	12	 
		  	2.11	  	“Market Stand-off” Agreement	  	 	12	 
		  	2.12	  	Restrictions on Transfer	  	 	13	 
		  	2.13	  	Termination of Registration Rights	  	 	14	 
			
	 3.
	  	Information Rights	  	 	14	 
				
		  	3.1	  	Delivery of Financial Statements	  	 	14	 
		  	3.2	  	Inspection	  	 	15	 
		  	3.3	  	Termination of Information Rights	  	 	15	 
		  	3.4	  	Confidentiality	  	 	15	 
			
	 4.
	  	Rights to Future Stock Issuances	  	 	16	 
				
		  	4.1	  	Right of First Offer	  	 	16	 
		  	4.2	  	Termination	  	 	17	 
			
	 5.
	  	Additional Covenants	  	 	17	 
				
		  	5.1	  	Board Matters	  	 	17	 
		  	5.2	  	Matters Requiring Preferred Director Approval	  	 	18	 
		  	5.3	  	Director’s & Officer’s Liability	  	 	19	 
		  	5.4	  	Indemnification Matters	  	 	19	 
		  	5.5	  	Successor Indemnification	  	 	19	 
		  	5.6	  	Prevention of Corruption	  	 	20	 
		  	5.7	  	Publicity	  	 	20	 
		  	5.8	  	Employee Agreements	  	 	20	 
		  	5.9	  	Employee Stock	  	 	20	 
		  	5.10	  	Qualified Small Business Stock	  	 	20	 
		  	5.11	  	FCPA	  	 	21	 
		  	5.12	  	Right to Conduct Activities	  	 	21	 
		  	5.13	  	Harassment Policy	  	 	22	 
		  	5.14	  	Expenses of Counsel	  	 	22	 
		  	5.15	  	Critical Technology Matters	  	 	22	 

  
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		  	5.16	  	Voting Thresholds	  	 	23	 
		  	5.17	  	Termination of Covenants	  	 	24	 
			
	 6.
	  	Miscellaneous	  	 	24	 
				
		  	6.1	  	Successors and Assigns	  	 	24	 
		  	6.2	  	Governing Law	  	 	24	 
		  	6.3	  	Counterparts	  	 	24	 
		  	6.4	  	Titles and Subtitles	  	 	24	 
		  	6.5	  	Notices	  	 	25	 
		  	6.6	  	Amendments and Waivers	  	 	25	 
		  	6.7	  	Severability	  	 	26	 
		  	6.8	  	Aggregation of Stock	  	 	26	 
		  	6.9	  	Additional Investors	  	 	26	 
		  	6.10	  	Entire Agreement	  	 	26	 
		  	6.11	  	Dispute Resolution	  	 	26	 
		  	6.12	  	Delays or Omissions	  	 	27	 
		  	6.13	  	Acknowledgment	  	 	27	 
		  	6.14	  	Limitation of Liability; Freedom to Operate Affiliates	  	 	27	 

 Schedule A - Schedule of Investors 

  
 ii 

 NKARTA, INC. 

AMENDED AND RESTATED INVESTORS’ RIGHTS AGREEMENT 

THIS AMENDED AND RESTATED INVESTORS’ RIGHTS AGREEMENT (this “Agreement”), is made as of the 27th day of August, 2019, by and among Nkarta, Inc., a Delaware corporation (the “Company”), and each of the investors listed on Schedule A hereto (together with any subsequent
investors or transferees who become parties to this Agreement in accordance with Section 6.9 hereof, each an “Investor” and together the “Investors”). 

RECITALS 
 WHEREAS,
certain of the Investors (the “Existing Investors”) hold shares of the Company’s Series A Preferred Stock and possess certain rights pursuant to that certain Investors’ Rights Agreement, dated as of December 18, 2017
(the “Prior Agreement”); 
 WHEREAS, the Company and certain of the Investors are parties to that certain Series B
Preferred Stock Purchase Agreement of even date herewith (as may be amended and/or restated from time to time, the “Purchase Agreement”), pursuant to which such Investors are purchasing shares of the Company’s Series B
Preferred Stock (together, the “Series B Preferred Stock”) and it is a condition to the initial closing of the sale of the Series B Preferred Stock to the Investors listed on the Schedule of Purchasers attached as Exhibit A thereto
that such Investors and the Company execute and deliver this Agreement; and 
 WHEREAS, the undersigned parties constitute (a) the
Company, (b) the holders of a majority of the Registrable Securities (as defined in the Prior Agreement) outstanding as of the date hereof, and such parties desire to amend and restate the Prior Agreement in its entirety and to accept the
rights created pursuant to this Agreement in lieu of the rights granted to them under the Prior Agreement; and 
 WHEREAS, the Company
desires to induce the Investors to purchase shares of Series B Preferred Stock pursuant to the Purchase Agreement by agreeing to the terms and conditions set forth herein. 

NOW, THEREFORE, the parties hereby agree as follows: 

1. Definitions. For purposes of this Agreement: 

“Affiliate” means, with respect to any specified Person, any other Person who, directly or indirectly, controls, is controlled
by, or is under common control with such Person, including without limitation any general partner, managing member, officer, director or trustee of such Person, or any venture capital fund or registered investment company now or hereafter existing
that is controlled by one or more general partners, managing members or investment adviser of, or shares the same management company or investment adviser with, such Person; provided that, where the term “Person” refers to Novo
Holdings A/S, in lieu of the foregoing definition, the term “Affiliate” shall mean Novo Ventures (US) Inc. (together with Novo Holdings A/S, “Novo”), any partner, executive officer or director of Novo or any venture
capital fund or other Person now or hereafter existing formed for the purpose of making investments in other Persons that is controlled by or under common control with Novo, and for the avoidance of doubt, shall not include any other affiliate of
Novo; and provided further, that where the term “Person” refers to Deerfield Special Situations Fund, L.P. and Deerfield Private Design Fund IV, L.P. (collectively, “Deerfield”), in lieu of the foregoing
definition, the term “Affiliate” shall mean Deerfield’s affiliates, its other equityholders, partners (including partners and affiliated partnerships managed by the same management company or managing (general) partner or by any
Person that is an Affiliate with such management company or managing (general) partner), members and a trust for the benefit of such other equityholders of Deerfield. 

 “Board of Directors” means the board of directors of the Company. 

“Common Stock” means shares of the Company’s common stock, par value $0.0001 per share. 

“Competitor” means a Person engaged, directly or indirectly (including through any partnership, limited liability company,
corporation, joint venture or similar arrangement (whether now existing or formed hereafter)), in a business that offers products or services that are directly or indirectly competitive with the products or services of the Company, including
products or services which are in actual or demonstrably anticipated research or development by the Company, but shall not include any financial investment firm or collective investment vehicle that, together with its Affiliates, holds less than
twenty percent (20%) of the outstanding equity of any Competitor and does not, nor do any of its Affiliates, have a right to designate any members of the board of directors of any Competitor. In no event shall any of Glaxo Group Limited, Novo, SR
One, NEA, Samsara, RA Capital, LSP or Deerfield (collectively, the “Preferred Investors”), be deemed a Competitor. 

“Damages” means any loss, damage, claim or liability (joint or several) to which a party hereto may become subject under the
Securities Act, the Exchange Act, or other federal or state law, insofar as such loss, damage, claim or liability (or any action in respect thereof) arises out of or is based upon: (i) any untrue statement or alleged untrue statement of a
material fact contained in any registration statement of the Company, including any preliminary prospectus or final prospectus contained therein or any amendments or supplements thereto; (ii) an 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 indemnifying party (or any of its agents or Affiliates) 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. 

“Derivative Securities” means any securities or rights convertible into, or exercisable or exchangeable for (in each case,
directly or indirectly), Common Stock, including options and warrants. 
 “Exchange Act” means the Securities Exchange Act
of 1934, as amended, and the rules and regulations promulgated thereunder. 
 “Excluded Registration” means (i) a
registration relating to the sale or grant of securities to employees of the Company or a subsidiary pursuant to a stock option, stock purchase, equity incentive or similar plan; (ii) a registration relating to an SEC Rule 145 transaction;
(iii) a registration on any form that does not include substantially the same information as would be required to be included in a registration statement covering the sale of the Registrable Securities; or (iv) a registration in which the
only Common Stock being registered is Common Stock issuable upon conversion of debt securities that are also being registered. 

“Form S-1” means such form under the Securities Act as in effect on the date hereof
or any successor registration form under the Securities Act subsequently adopted by the SEC. 
 “Form
S-3” means such form under the Securities Act as in effect on the date hereof or any registration form under the Securities Act subsequently adopted by the SEC that permits forward incorporation of
substantial information by reference to other documents filed by the Company with the SEC. 

  
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 “GAAP” means generally accepted accounting principles in the United States
as in effect from time to time. 
 “Holder” means any holder of Registrable Securities who is a party to this Agreement.

 “Immediate Family Member” means a child, stepchild, grandchild, parent, stepparent, grandparent, spouse, domestic
partner, sibling, mother-in-law, father-in-law, son-in-law, daughter-in-law, brother-in-law, or sister-in-law, including, adoptive relationships, of a natural person referred to herein. 

“Initiating Holders” means, collectively, Holders who properly initiate a registration request under this Agreement. 

“IPO” means the Company’s first underwritten public offering of its Common Stock under the Securities Act. 

“Key Employee” means any executive-level employee (including, division director and vice president-level positions) as well
as any employee who, either alone or in concert with others, develops, invents, programs, or designs any Company Intellectual Property (as defined in the Purchase Agreement). 

“LSP” means LSP 6 Holding C.V. and its Affiliates. 

“Major Investor” means any Investor that, individually or together with such Investor’s Affiliates, holds at least (i)
1,681,131 shares of Preferred Stock (as adjusted for any stock split, stock dividend, combination, recapitalizations, reclassifications and the like effected after the date hereof) or (ii) such number of Registrable Securities issued or
issuable upon conversion of 1,681,131 shares of Preferred Stock (as adjusted for any stock split, stock dividend, combination, recapitalization, reclassification and the like effected after the date hereof) provided that each RA Capital
Investor shall be deemed to be a Major Investor for so long as each such RA Capital Investor holds the number of shares purchased by such RA Capital Investor under the Purchase Agreement, and provided further that, notwithstanding the
foregoing, in the event that any Major Investor becomes a Defaulting Purchaser (as defined in the Purchase Agreement), such Defaulting Purchaser shall cease to be a Major Investor under this Agreement. 

“NEA” means New Enterprise Associates 15 L.P. and its Affiliates. 

“New Securities” means, collectively, equity securities of the Company, whether or not currently authorized, as well as
rights, options, or warrants to purchase such equity securities, or securities of any type whatsoever that are, or may become, convertible or exchangeable into or exercisable for such equity securities. 

“Person” means any individual, corporation, partnership, trust, limited liability company, association or other entity. 

“Preferred Stock” means, collectively, shares of the Company’s Series A Preferred Stock and shares of the Company’s
Series B Preferred Stock. 
 “RA Capital” means, collectively, RA Capital Healthcare Fund, L.P., RA Capital Nexus Fund,
L.P., and Blackwell Partners LLC—Series A, and their Affiliates. 

  
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 “Registrable Securities” means (i) the Common Stock issuable or issued
upon conversion of the Preferred Stock, excluding any Common Stock issued upon conversion of the Preferred Stock pursuant to the “Special Mandatory Conversion” provisions of the Restated Certificate; (ii) any Common Stock, or any
Common Stock issued or issuable (directly or indirectly) upon conversion and/or exercise of any other securities of the Company acquired by the Investors after the date hereof and (iii) any Common Stock 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, the shares referenced in clauses (i) and (ii) above; excluding in all
cases, however, any Registrable Securities sold by a Person in a transaction in which the applicable rights under this Agreement are not assigned pursuant to Section 6.1, and excluding for purposes of Section 2
any shares for which registration rights have terminated pursuant to Section 2.13 of this Agreement. 

“Registrable Securities then outstanding” means the number of shares determined by adding the number of shares of outstanding
Common Stock that are Registrable Securities and the number of shares of Common Stock issuable (directly or indirectly) pursuant to then exercisable and/or convertible securities that are Registrable Securities. 

“Restated Certificate” means the Company’s Amended and Restated Certificate of Incorporation, as may be amended and/or
restated from time to time. 
 “Restricted Securities” means the securities of the Company required to be notated with the
legend set forth in Section 2.12(b) hereof. 
 “Right of First Refusal and
Co-Sale Agreement” means that certain Amended and Restated Right of First Refusal and Co-Sale Agreement, dated of even date herewith, by and among the Company,
the Investors and the other parties named therein, as may be amended and/or restated from time to time. 
 “Samsara” means
Samsara BioCapital L.P. and its Affiliates.  
 “SEC” means the Securities and Exchange Commission. 

“SEC Rule 144” means Rule 144 promulgated by the SEC under the Securities Act. 

“SEC Rule 145” means Rule 145 promulgated by the SEC under the Securities Act. 

“Securities Act” means the Securities Act of 1933, as amended, and the rules and regulations promulgated thereunder. 

“Selling Expenses” means all underwriting discounts, selling commissions, and stock transfer taxes applicable to the sale of
Registrable Securities, and fees and disbursements of counsel for any Holder, except for the fees and disbursements of the Selling Holder Counsel borne and paid by the Company as provided in Section 2.6. 

“Series A Preferred Stock” means shares of the Company’s Series A Preferred Stock, par value $0.0001 per share. 

“Series B Preferred Stock” means shares of the Company’s Series B Preferred Stock, par value $0.0001 per share. 

“SR One” means SR One, Limited, and its Affiliates. 

  
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 “Voting Agreement” means that certain Amended and Restated Voting
Agreement, dated of even date herewith, by and among the Company, the Investors and the other parties named therein, as may be amended and/or restated from time to time. 

2. Registration Rights. The Company covenants and agrees as follows: 

2.1 Demand Registration. 

(a) Form S-1 Demand. If at any time after the earlier of (i) five (5) years after the
date of this Agreement or (ii) one hundred eighty (180) days after the effective date of the registration statement for the IPO, the Company receives a request from Holders of a majority of the Registrable Securities then outstanding that
the Company file a Form S-1 registration statement, for an aggregate gross offering price of at least $5,000,000, then the Company shall (x) within ten (10) days after the date such request is given,
give notice thereof (the “Demand Notice”) to all Holders other than the Initiating Holders, and (y) as soon as practicable, and in any event within sixty (60) days after the date such request is given by the Initiating
Holders, file a Form S-1 registration statement under the Securities Act covering all Registrable Securities that the Initiating Holders requested to be registered and any additional Registrable Securities
requested to be included in such registration by any other Holders, as specified by notice given by each such Holder to the Company within twenty (20) days of the date the Demand Notice is given, and in each case, subject to the limitations of
Sections 2.1(c) and 2.3. 
 (b) Form S-3 Demand. If at any time when it is
eligible to use a Form S-3 registration statement, the Company receives a request from Holders of the Registrable Securities then outstanding that the Company file a Form
S-3 registration statement with respect to outstanding Registrable Securities of such Holders having an anticipated aggregate gross offering price, of at least $1,000,000, then the Company shall
(i) within ten (10) days after the date such request is given, give a Demand Notice to all Holders other than the Initiating Holders, and (ii) as soon as practicable, and in any event within forty-five (45) days after the date
such request is given by the Initiating Holders, file a Form S-3 registration statement under the Securities Act covering all Registrable Securities requested to be included in such registration by any other
Holders, as specified by notice given by each such Holder to the Company within twenty (20) days of the date the Demand Notice is given, and in each case, subject to the limitations of Sections 2.1(c) and 2.3. 

(c) Notwithstanding the foregoing obligations, if the Company furnishes to Holders requesting a registration pursuant to this
Section 2.1 a certificate signed by the Company’s chief executive officer stating that in the good faith judgment of the Board of Directors it would be materially detrimental to the Company and its stockholders for
such registration statement to either become effective or remain effective for as long as such registration statement otherwise would be required to remain effective, because such action would (i) materially interfere with a significant
acquisition, corporate reorganization, or other similar transaction involving the Company, (ii) require premature disclosure of material information that the Company has a bona fide business purpose for preserving as confidential, or
(iii) render the Company unable to comply with requirements under the Securities Act or Exchange Act, then the Company shall have the right to defer taking action with respect to such filing, and any time periods with respect to filing or
effectiveness thereof shall be tolled correspondingly, for a period of not more than sixty (60) days after the request of the Initiating Holders is given; provided, however, that the Company may not invoke this right more than
once in any twelve (12) month period; and provided further that the Company shall not register any securities for its own account or that of any other stockholder during such sixty (60) day period other than an Excluded
Registration. 

  
 5 

 (d) The Company shall not be obligated to effect, or to take any action to effect, any
registration pursuant to Section 2.1(a): (i) during the period that is thirty (30) days before the Company’s good faith estimate of the date of filing of, and ending on a date that is one hundred eighty
(180) days after the effective date of, a Company-initiated registration, provided that the Company is actively employing in good faith commercially reasonable efforts to cause such registration statement to become effective;
(ii) after the Company has effected two registrations pursuant to Section 2.1(a); or (iii) if the Initiating Holders propose to dispose of shares of Registrable Securities that may be immediately registered on
Form S-3 pursuant to a request made pursuant to Section 2.1(b). The Company shall not be obligated to effect, or to take any action to effect, any registration pursuant to
Section 2.1(b): (i) during the period that is thirty (30) days before the Company’s good faith estimate of the date of filing of, and ending on a date that is sixty (60) days after the effective date of, a
Company-initiated registration, provided that the Company is actively employing in good faith commercially reasonable efforts to cause such registration statement to become effective; or (ii) if the Company has effected two
registrations pursuant to Section 2.1(b) within the twelve (12) month period immediately preceding the date of such request. A registration shall not be counted as “effected” for purposes of this
Section 2.1(d) until such time as the applicable registration statement has been declared effective by the SEC, unless the Initiating Holders withdraw their request for such registration, elect not to pay the registration
expenses therefor, and forfeit their right to one demand registration statement pursuant to Section 2.6, in which case such withdrawn registration statement shall be counted as “effected” for purposes of this
Section 2.1(d); provided, that if such withdrawal is during a period the Company has deferred taking action pursuant to Section 2.1(c), then the Initiating Holders may withdraw their request
for registration and such registration will not be counted as “effected” for purposes of this Section 2.1(d). 

2.2 Company Registration. If the Company proposes to register (including, for this purpose, a registration effected by the Company for
stockholders other than the Holders) any of its securities under the Securities Act in connection with the public offering of such securities solely for cash (other than in an Excluded Registration), the Company shall, at such time, promptly give
each Holder notice of such registration. Upon the request of each Holder given within twenty (20) days after such notice is given by the Company, the Company shall, subject to the provisions of Section 2.3, cause to be
registered all of the Registrable Securities that each such Holder has requested to be included in such registration. The Company shall have the right to terminate or withdraw any registration initiated by it under this
Section 2.2 before the effective date of such registration, whether or not any Holder has elected to include Registrable Securities in such registration. The expenses (other than Selling Expenses) of such withdrawn
registration shall be borne by the Company in accordance with Section 2.6. 
 2.3 Underwriting
Requirements. 
 (a) If, pursuant to Section 2.1, 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 Section 2.1, and the Company shall include such information in the Demand Notice.
The underwriter(s) will be selected by the Company and shall be reasonably acceptable to a majority in interest of the Initiating Holders. In such event, the right of any Holder to include such Holder’s 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 (together with the Company as provided in Section 2.4(e)) enter into an underwriting agreement in customary form with the underwriter(s) selected for such underwriting;
provided, however, that no Holder (or any of its assignees) shall be required to make any representations, warranties or indemnities except as they relate to such Holder’s ownership of shares and authority to enter into the
underwriting agreement and to such Holder’s intended method of distribution, and the liability of such Holder shall be limited to an amount equal to the net proceeds from the offering received by such Holder. Notwithstanding any other provision
of this Section 2.3, if the managing underwriter(s) advise(s) the Initiating Holders in writing that marketing factors require a limitation on the number of shares to be 

  
 6 

 
underwritten, then the Initiating Holders shall so advise all Holders of Registrable Securities that otherwise would be underwritten pursuant hereto, and the number of Registrable Securities that
may be included in the underwriting shall be allocated among such Holders of Registrable Securities, including the Initiating Holders, in proportion (as nearly as practicable) to the number of Registrable Securities owned by each Holder or in such
other proportion as shall mutually be agreed to by all such selling Holders; provided, however, that the number of Registrable Securities held by the Holders to be included in such underwriting shall not be reduced unless all other
securities are first entirely excluded from the underwriting. To facilitate the allocation of shares in accordance with the above provisions, the Company or the underwriters may round the number of shares allocated to any Holder to the nearest one
hundred (100) shares. 
 (b) In connection with any offering involving an underwriting of shares of the Company’s capital stock
pursuant to Section 2.2, the Company shall not be required to include any of the Holders’ Registrable Securities in such underwriting unless the Holders seeking to sell Registrable Securities in such offering accept
the terms of the underwriting as agreed upon between the Company and its underwriters, and then only in such quantity as the underwriters in their sole discretion determine will not jeopardize the success of the offering by the Company. If the total
number of securities, including Registrable Securities, requested by stockholders to be included in such offering exceeds the number of securities to be sold (other than by the Company) that the underwriters in their reasonable discretion determine
is compatible with the success of the offering, then the Company shall be required to include in the offering only that number of such securities, including Registrable Securities, which the underwriters and the Company in their sole discretion
determine will not jeopardize the success of the offering. If the underwriters determine that less than all of the Registrable Securities requested to be registered can be included in such offering, then the Registrable Securities that are included
in such offering shall be allocated among the selling Holders in proportion (as nearly as practicable to) the number of Registrable Securities owned by each selling Holder or in such other proportions as shall mutually be agreed to by all such
selling Holders. To facilitate the allocation of shares in accordance with the above provisions, the Company or the underwriters may round the number of shares allocated to any Holder to the nearest one hundred (100) shares. Notwithstanding the
foregoing, in no event shall (i) the number of Registrable Securities included in the offering be reduced unless all other securities (other than securities to be sold by the Company) are first entirely excluded from the offering, or
(ii) the number of Registrable Securities included in the offering be reduced below thirty percent (30%) of the total number of securities included in such offering, unless such offering is the IPO, in which case the selling Holders may be
excluded further if the underwriters make the determination described above and no other stockholder’s securities are included in such offering. For purposes of the provision in this Section 2.3(b) concerning
apportionment, for any selling Holder that is a partnership, limited liability company, or corporation, the partners, members, retired partners, retired members, stockholders, and Affiliates of such Holder, or the estates and Immediate Family
Members of any such partners, retired partners, members, and retired members and any trusts for the benefit of any of the foregoing Persons, shall be deemed to be a single “selling Holder,” and any pro rata reduction with respect to
such “selling Holder” shall be based upon the aggregate number of Registrable Securities owned by all Persons included in such “selling Holder,” as defined in this sentence. 

(c) For purposes of Section 2.1, a registration shall not be counted as “effected” if, as a result of an
exercise of the underwriter’s cutback provisions in Section 2.3(a), fewer than fifty percent (50%) of the total number of Registrable Securities that Holders have requested to be included in such registration statement
are actually included 

  
 7 

 2.4 Obligations of the Company. Whenever required under this
Section 2 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 its commercially reasonable
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 a period of up to one hundred
twenty (120) days or, if earlier, until the distribution contemplated in the registration statement has been completed; provided, however, that (i) such one hundred twenty (120) day period shall be extended for a period
of time equal to the period the Holder refrains, at the request of an underwriter of Common Stock (or other securities) of the Company, from selling any securities included in such registration, and (ii) in the case of any registration of
Registrable Securities on Form S-3 that are intended to be offered on a continuous or delayed basis, subject to compliance with applicable SEC rules, such one hundred twenty (120) day period shall be
extended for up to one hundred eighty (180) days, if necessary, to keep the registration statement effective until all such Registrable Securities are sold; 

(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 Securities Act in order to enable the disposition of all securities covered by such registration statement; 

(c) furnish to the selling Holders such numbers of copies of a prospectus, including a preliminary prospectus, as required by the Securities
Act, and such other documents as the Holders may reasonably request in order to facilitate their disposition of their Registrable Securities; 

(d) use its commercially reasonable 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 selling Holders; provided that the Company shall not be required to qualify to do business or to file a general
consent to service of process in any such states or jurisdictions, unless the Company is already subject to service in such jurisdiction and except as may be required by the Securities Act; 

(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 underwriter(s) of such offering; 
 (f) use its commercially reasonable efforts to cause all such Registrable
Securities covered by such registration statement to be listed on a national securities exchange or trading system and each securities exchange and trading system (if any) on which similar securities issued by the Company are then listed; 

(g) provide a transfer agent and registrar for all Registrable Securities registered pursuant to this Agreement and provide a CUSIP number
for all such Registrable Securities, in each case not later than the effective date of such registration; 
 (h) promptly make available
for inspection by the selling Holders, any managing underwriter(s) participating in any disposition pursuant to such registration statement, and any attorney or accountant or other agent retained by any such underwriter or selected by the selling
Holders, all financial and other records, pertinent corporate documents, and properties of the Company, and cause the Company’s officers, directors, employees, and independent accountants to supply all information reasonably requested by any
such seller, underwriter, attorney, accountant, or agent, in each case, as necessary or advisable to verify the accuracy of the information in such registration statement and to conduct appropriate due diligence in connection therewith; 

  
 8 

 (i) notify each selling Holder, promptly after the Company receives notice thereof, of the
time when such registration statement has been declared effective or a supplement to any prospectus forming a part of such registration statement has been filed; and 

(j) after such registration statement becomes effective, notify each selling Holder of any request by the SEC that the Company amend or
supplement such registration statement or prospectus. 
 In addition, the Company shall ensure that, at all times after any registration
statement covering a public offering of securities of the Company under the Securities Act shall have become effective, its insider trading policy shall provide that the Company’s directors may implement a trading program under Rule 10b5-l of the Exchange Act. 
 2.5 Furnish Information. It shall be a condition precedent to the
obligations of the Company to take any action pursuant to this Section 2 with respect to the Registrable Securities of any selling Holder that such Holder shall furnish to the Company such information regarding itself, the
Registrable Securities held by it, and the intended method of disposition of such securities as is reasonably required to effect the registration of such Holder’s Registrable Securities. 

2.6 Expenses of Registration. All expenses (other than Selling Expenses) incurred in connection with registrations, filings, or
qualifications pursuant to Section 2, including all registration, filing, and qualification fees; printers’ and accounting fees; fees and disbursements of counsel for the Company; and the reasonable fees and
disbursements, not to exceed $200,000 of one counsel for the selling Holders (“Selling Holder Counsel”), shall be borne and paid by the Company; provided, however, that the Company shall not be required to pay for any
expenses of any registration proceeding begun pursuant to Section 2.1 if the registration request is subsequently withdrawn at the request of the Holders of a majority of the Registrable Securities to be registered (in
which case all selling Holders shall bear such expenses pro rata based upon the number of Registrable Securities that were to be included in the withdrawn registration), unless the Holders of a majority of the Registrable Securities agree to
forfeit their right to one registration pursuant to Sections 2.1(a) or 2.1(b), as the case may be; provided further that if, at the time of such withdrawal, the Holders shall have learned of a material adverse change in
the condition, business, or prospects of the Company from that known to the Holders at the time of their request and have withdrawn the request with reasonable promptness after learning of such information then the Holders shall not be required to
pay any of such expenses and shall not forfeit their right to one registration pursuant to Sections 2.1(a) or 2.1(b). All Selling Expenses relating to Registrable Securities registered pursuant to this Section 2 shall be
borne and paid by the Holders pro rata on the basis of the number of Registrable Securities registered on their behalf. 
 2.7
Delay of Registration. No Holder shall have any right to obtain or seek an injunction restraining or otherwise delaying any registration pursuant to this Agreement as the result of any controversy that might arise with respect to the
interpretation or implementation of this Section 2. 
 2.8 Indemnification. If any Registrable Securities
are included in a registration statement under this Section 2: 
 (a) To the extent permitted by law, the Company
will indemnify and hold harmless each selling Holder, and the partners, members, officers, directors, and stockholders of each such Holder; legal counsel and accountants for each such Holder; any underwriter (as defined in the Securities Act) for
each 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 Damages, and the Company will pay to each such Holder, underwriter, controlling Person, or
other aforementioned Person any legal or other 

  
 9 

 
expenses reasonably incurred thereby in connection with investigating or defending any claim or proceeding from which Damages may result, as such expenses are incurred; provided,
however, that the indemnity agreement contained in this Section 2.8(a) shall not apply to amounts paid in settlement of any such claim or proceeding if such settlement is effected without the consent of the Company,
which consent shall not be unreasonably withheld, nor shall the Company be liable for any Damages to the extent that they arise out of or are based upon actions or omissions made in reliance upon and in conformity with written information furnished
by or on behalf of any such Holder, underwriter, controlling Person, or other aforementioned Person expressly for use in connection with such registration. 

(b) To the extent permitted by law, each selling Holder, severally and not jointly, will indemnify and hold harmless the Company, and each of
its directors, each of its officers who has signed the registration statement, each Person (if any), who controls the Company within the meaning of the Securities Act, legal counsel and accountants for the Company, any underwriter (as defined in the
Securities Act), any other Holder selling securities in such registration statement, and any controlling Person of any such underwriter or other Holder, against any Damages, in each case only to the extent that such Damages arise out of or are based
upon actions or omissions made in reliance upon and in conformity with written information furnished by or on behalf of such selling Holder expressly for use in connection with such registration; and each such selling Holder will pay to the Company
and each other aforementioned Person any legal or other expenses reasonably incurred thereby in connection with investigating or defending any claim or proceeding from which Damages may result, as such expenses are incurred; provided,
however, that the indemnity agreement contained in this Section 2.8(b) shall not apply to amounts paid in settlement of any such claim or proceeding if such settlement is effected without the consent of the Holder,
which consent shall not be unreasonably withheld; and provided further that in no event shall the aggregate amounts payable by any Holder by way of indemnity or contribution under Sections 2.8(b) and 2.8(d) exceed the
proceeds from the offering received by such Holder (net of any Selling Expenses paid by such Holder), except in the case of fraud or willful misconduct by such Holder. 

(c) Promptly after receipt by an indemnified party under this Section 2.8 of notice of the commencement of any
action (including any governmental action) for which a party may be entitled to indemnification hereunder, such indemnified party will, if a claim in respect thereof is to be made against any indemnifying party under this
Section 2.8, give the indemnifying party notice of the commencement thereof. The indemnifying party shall have the right to participate in such action and, to the extent the indemnifying party so desires, participate
jointly with any other indemnifying party to which notice has been given, and to assume the defense thereof with counsel mutually satisfactory to the parties; provided, however, that an indemnified party (together with all other indemnified
parties that may be represented without conflict by one counsel) shall have the right to retain one separate 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 action. The failure to give 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 2.8. 

(d) To provide for just and equitable contribution to joint liability under the Securities Act in any case in which either: (i) any
party otherwise entitled to indemnification hereunder makes a claim for indemnification pursuant to this Section 2.8 but it is judicially determined (by the entry of a final judgment or decree by a court of competent
jurisdiction and the expiration of time to appeal or the denial of the last right of appeal) that such indemnification may not be enforced in such case, notwithstanding the fact that this Section 2.8 provides for
indemnification in such case, or (ii) contribution under the Securities Act may be required on the part of any party hereto for which indemnification is provided under this Section 2.8, then, and in each such case,
such parties will contribute to the aggregate losses, claims, damages, liabilities, or expenses to which they may be subject (after contribution from 

  
 10 

 
others) in such proportion as is appropriate to reflect the relative fault of each of the indemnifying party and the indemnified party in connection with the statements, omissions, or other
actions that resulted in such loss, claim, damage, liability, or expense, as well as to reflect any other relevant equitable considerations. The relative fault of the indemnifying party and of the indemnified party shall be determined by reference
to, among other things, whether the untrue or allegedly untrue statement of a material fact, or the omission or alleged omission of 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, however, that, in any such case (x) no Holder will be required to contribute any amount
in excess of the public offering price of all such Registrable Securities offered and sold by such Holder pursuant to such registration statement, and (y) no Person guilty of fraudulent misrepresentation (within the meaning of
Section 11(f) of the Securities Act) will be entitled to contribution from any Person who was not guilty of such fraudulent misrepresentation; and provided further that in no event shall a Holder’s liability pursuant to this
Section 2.8(d), when combined with the amounts paid or payable by such Holder pursuant to Section 2.8(b), exceed the proceeds from the offering received by such Holder (net of any Selling Expenses
paid by such Holder), except in the case of willful misconduct or fraud by such Holder. 
 (e) Notwithstanding the foregoing, to the extent
that the provisions on indemnification and contribution contained in the underwriting agreement entered into in connection with the underwritten public offering are in conflict with the foregoing provisions, the provisions in the underwriting
agreement shall control. 
 (f) Unless otherwise superseded by an underwriting agreement entered into in connection with the underwritten
public offering, the obligations of the Company and Holders under this Section 2.8 shall survive the completion of any offering of Registrable Securities in a registration under this Section 2, and
otherwise shall survive the termination of this Agreement. 
 2.9 Reports Under Exchange Act. With a view to making available to the
Holders the benefits of SEC Rule 144 and any other rule or regulation of the SEC that may at any time permit a Holder to sell securities of the Company to the public without registration or pursuant to a registration on Form S-3, the Company shall: 
 (a) make and keep available adequate current public information, as those terms
are understood and defined in SEC Rule 144, at all times after the effective date of the registration statement filed by the Company for the IPO; 

(b) use commercially reasonable efforts to file with the SEC in a timely manner all reports and other documents required of the Company under
the Securities Act and the Exchange Act (at any time after the Company has become subject to such reporting requirements); and 
 (c)
furnish to any Holder, so long as the Holder owns any Registrable Securities, forthwith upon request: (i) to the extent accurate, a written statement by the Company that it has complied with the reporting requirements of SEC Rule 144 (at any
time after ninety (90) days after the effective date of the registration statement filed by the Company for the IPO), the Securities Act, and the Exchange Act (at any time after the Company has become subject to such reporting requirements), or
that it qualifies as a registrant whose securities may be resold pursuant to Form S-3 (at any time after the Company so qualifies); (ii) a copy of the most recent annual or quarterly report of the Company and
such other reports and documents so filed by the Company; and (iii) such other information as may be reasonably requested in availing any Holder of any rule or regulation of the SEC that permits the selling of any such securities without
registration (at any time after the Company has become subject to the reporting requirements under the Exchange Act) or pursuant to Form S-3 (at any time after the Company so qualifies to use such form). 

  
 11 

 2.10 Limitations on Subsequent Registration Rights. From and 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 (i) would provide to such holder or prospective holder the right to include securities in any registration on other than either a pro rata basis with respect to the Registrable Securities or
on a subordinate basis after all Holders have had the opportunity to include in the registration and offering all shares of Registrable Securities that they wish to so include, or (ii) would allow such holder or prospective holder to initiate a
demand for registration of any securities held by such holder or prospective holder; provided that this limitation shall not apply to Registrable Securities acquired by any additional Investor who becomes a party to this Agreement in
accordance with Section 6.9. 
 2.11 “Market Stand-off”
Agreement. Each Holder hereby agrees that it will not, without the prior written consent of the managing underwriter, during the period commencing on the date of the final prospectus relating to the registration by the Company of shares of its
Common Stock or any other equity securities under the Securities Act for its IPO and ending on the date specified by the Company and the managing underwriter (such period not to exceed one hundred eighty (180) days), or such longer period as
may be required to accommodate applicable regulatory restrictions on (1) the publication or other distribution of research reports, and (2) analyst recommendations and opinions, including, but not limited to, the restrictions contained in
FINRA Rule 2711(f)(4) or NYSE Rule 472(f)(4), or any successor provisions or amendments thereto), (i) lend, offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option,
right, or warrant to purchase, or otherwise transfer or dispose of, directly or indirectly, any shares of Common Stock or any securities convertible into or exercisable or exchangeable (directly or indirectly) for Common Stock held immediately
before the effective date of the registration statement for such offering or (ii) enter into any swap or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of such securities, whether
any such transaction described in clause (i) or (ii) above is to be settled by delivery of Common Stock or other securities, in cash, or otherwise. The foregoing provisions of this Section 2.11 shall (A) apply
only to the IPO, (B) not apply to the sale of any shares to an underwriter pursuant to an underwriting agreement, (C) not apply to the transfer of any shares to any trust for the direct or indirect benefit of the Holder or an Immediate
Family Member of the Holder, provided that the trustee of the trust agrees to be bound in writing by the restrictions set forth herein, and provided further that any such transfer shall not involve a disposition for value, and
(D) be applicable to the Holders only if all officers and directors are subject to the same restrictions and stockholders individually owning more than one percent (1%) of the Company’s outstanding Common Stock (after giving effect to
conversion into Common Stock of all outstanding Preferred Stock) enter into similar agreements. The underwriters in connection with such registration are intended third-party beneficiaries of this Section 2.11 and shall
have the right, power and authority to enforce the provisions hereof as though they were a party hereto. Each Holder further agrees to execute such agreements as may be reasonably requested by the underwriters in connection with such registration
that are consistent with this Section 2.11 or that are necessary to give further effect thereto. To the extent that any person who is subject to market stand-off obligations is
released early by the managing underwriter from such market stand-off obligations, or any or all such obligations are waived, then each Holder shall also receive a pro rata release or waiver, as
applicable, based on the number of shares subject to such agreements, from its respective market stand-off obligations. 

  
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 2.12 Restrictions on Transfer. 

(a) The Preferred Stock and the Registrable Securities shall not be sold, pledged, or otherwise transferred, and the Company shall not
recognize and shall issue stop-transfer instructions to its transfer agent with respect to any such sale, pledge, or transfer, except upon the conditions specified in this Agreement, which conditions are intended to ensure compliance with the
provisions of the Securities Act. A transferring Holder will cause any proposed purchaser, pledgee, or transferee of the Preferred Stock and the Registrable Securities held by such Holder to agree to take and hold such securities subject to the
provisions and upon the conditions specified in this Agreement. 
 (b) Each certificate, instrument, or book entry representing
(i) the Preferred Stock, (ii) the Registrable Securities, and (iii) any other securities issued in respect of the securities referenced in clauses (i) and (ii), upon any stock split, stock dividend, combinations,
recapitalizations, reclassifications and the like, shall (unless otherwise permitted by the provisions of Section 2.12(c)) be notated with a legend substantially in the following form: 

THE SECURITIES REPRESENTED HEREBY HAVE BEEN ACQUIRED FOR INVESTMENT AND HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933. SUCH SHARES
MAY NOT BE SOLD, PLEDGED, OR TRANSFERRED IN THE ABSENCE OF SUCH REGISTRATION OR A VALID EXEMPTION FROM THE REGISTRATION AND PROSPECTUS DELIVERY REQUIREMENTS OF SAID ACT. 

THE SECURITIES REPRESENTED HEREBY MAY BE TRANSFERRED ONLY IN ACCORDANCE WITH THE TERMS OF AN AGREEMENT BETWEEN THE COMPANY AND THE STOCKHOLDER,
A COPY OF WHICH IS ON FILE WITH THE SECRETARY OF THE COMPANY. 
 The Holders consent to the Company making a notation in its records and
giving instructions to any transfer agent of the Restricted Securities in order to implement the restrictions on transfer set forth in this Section 2.12. 

(c) The holder of such Restricted Securities, by acceptance of ownership thereof, agrees to comply in all respects with the provisions of
this Section 2. Before any proposed sale, pledge, or transfer of any Restricted Securities, unless there is in effect a registration statement under the Securities Act covering the proposed transaction, the Holder thereof
shall give notice to the Company of such Holder’s intention to effect such sale, pledge, or transfer. Each such notice shall describe the manner and circumstances of the proposed sale, pledge, or transfer in sufficient detail and, if reasonably
requested by the Company, shall be accompanied at such Holder’s expense by either (i) a written opinion of legal counsel who shall, and whose legal opinion shall, be reasonably satisfactory to the Company, addressed to the Company, to the
effect that the proposed transaction may be effected without registration under the Securities Act; (ii) a “no action” letter from the SEC to the effect that the proposed sale, pledge, or transfer of such Restricted Securities without
registration will not result in a recommendation by the staff of the SEC that action be taken with respect thereto; or (iii) any other evidence reasonably satisfactory to counsel to the Company to the effect that the proposed sale, pledge, or
transfer of the Restricted Securities may be effected without registration under the Securities Act, whereupon the Holder of such Restricted Securities shall be entitled to sell, pledge, or transfer such Restricted Securities in accordance with the
terms of the notice given by the Holder to the Company. The Company will not require such a legal opinion or “no action” letter (x) in any transaction in compliance with SEC Rule 144; or (y) in any transaction in which such
Holder distributes Restricted Securities to an Affiliate of such Holder for no consideration; provided that each transferee agrees in writing to be subject to the terms of this Section 2.12. Each certificate,
instrument, or book entry representing the Restricted Securities transferred as above provided shall be notated with, except if such transfer is made pursuant to SEC Rule 144, the appropriate restrictive legend set forth in
Section 2.12(b), except that such certificate instrument, or book entry shall not be notated with such restrictive legend if, in the opinion of counsel for such Holder and the Company, such legend is not required in order
to establish compliance with any provisions of the Securities Act. 

  
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 2.13 Termination of Registration Rights. The right of any Holder to request
registration or inclusion of Registrable Securities in any registration pursuant to Sections 2.1 or 2.2 shall terminate upon the earliest to occur of: 

(a) the closing of a Deemed Liquidation Event, as such term is defined in the Restated Certificate; and 

(b) the fifth anniversary of the IPO. 

3. Information Rights. 

3.1 Delivery of Financial Statements. The Company shall deliver to each Major Investor, provided that the Board of Directors has
not reasonably determined that such Major Investor is a Competitor: 
 (a) as soon as practicable, but in any event within thirty
(30) days of the end of each month, an unaudited income statement and statement of cash flows for such month, and an unaudited balance sheet and statement of stockholders’ equity as of the end of such month, all prepared in accordance with
GAAP (except that such financial statements may (i) be subject to normal year-end audit adjustments and (ii) not contain all notes thereto that may be required in accordance with GAAP); 

(b) as soon as practicable, but in any event within forty-five (45) days after the end of each of the first three (3) quarters of
each fiscal year of the Company, unaudited statements of income and cash flows for such fiscal quarter, and an unaudited balance sheet and a statement of stockholders’ equity as of the end of such fiscal quarter, all prepared in accordance with
GAAP (except that such financial statements may (i) be subject to normal year-end audit adjustments; and (ii) not contain all notes thereto that may be required in accordance with GAAP); 

(c) as soon as practicable, but in any event within one hundred twenty (120) days after the end of each fiscal year of the Company
(i) a balance sheet as of the end of such year, (ii) statements of income and of cash flows for such year, and (iii) a statement of stockholders’ equity as of the end of such year, all such financial statements audited and
certified by independent public accountants of nationally recognized standing selected by the Company; 
 (d) as soon as practicable, but
in any event thirty (30) days before the end of each fiscal year, a comprehensive budget and business plan for the next fiscal year (collectively, the “Budget”), approved by the Board of Directors (including a majority of the
then-serving Preferred Directors (as such term is defined in the Restated Certificate)) and prepared on a monthly basis, including balance sheets, income statements, and statements of cash flow for such months and, promptly after prepared, any other
budgets or revised budgets prepared by the Company; 
 (e) with respect to the financial statements called for in
Section 3.1(a), Section 3.1(b) and Section 3.1(c), an instrument executed by the chief financial officer and chief executive officer of the Company certifying that such financial
statements were prepared in accordance with GAAP consistently applied with prior practice for earlier periods (except as otherwise set forth in Section 3.1(a), Section 3.1(b) and
Section 3.1(c)) and fairly present the financial condition of the Company and its results of operation for the periods specified therein; and 

  
 14 

 (f) such other information relating to the financial condition, business, prospects, or
corporate affairs of the Company as any Major Investor may from time to time reasonably request; provided, however, that the Company shall not be obligated under this Section 3.1 to provide information
(i) that the Company reasonably determines in good faith to be a trade secret or confidential information (unless covered by an enforceable confidentiality agreement, in a form acceptable to the Company), or (ii) the disclosure of which
would adversely affect the attorney-client privilege between the Company and its counsel. 
 If, for any period, the Company has any
subsidiary whose accounts are consolidated with those of the Company, then in respect of such period the financial statements delivered pursuant to the foregoing sections shall be the consolidated and consolidating financial statements of the
Company and all such consolidated subsidiaries. 
 Notwithstanding anything else in this Section 3.1 to the
contrary, the Company may cease providing the information set forth in this Section 3.1 during the period starting with the date thirty (30) days before the Company’s good-faith estimate of the date of filing of a
registration statement if it reasonably concludes it must do so to comply with the SEC rules applicable to such registration statement and related offering; provided that the Company’s covenants under this
Section 3.1 shall be reinstated at such time as the Company is no longer actively employing its commercially reasonable efforts to cause such registration statement to become effective. 

3.2 Inspection. The Company shall permit each Major Investor (provided that the Board of Directors has not reasonably determined
that such Major Investor is a Competitor), at such Major Investor’s expense, to visit and inspect the Company’s properties; examine its books of account and records; and discuss the Company’s affairs, finances, and accounts with its
officers, during normal business hours of the Company as may be reasonably requested by the Major Investor; provided, however, that the Company shall not be obligated pursuant to this Section 3.2 to provide
access to any information that it reasonably and in good faith considers to be a trade secret or confidential information (unless covered by an enforceable confidentiality agreement, in form acceptable to the Company) or the disclosure of which
would adversely affect the attorney-client privilege between the Company and its counsel. 
 3. 3 Termination of Information Rights.
The covenants set forth in Sections 3.1 and 3.2 shall terminate and be of no further force or effect (i) immediately before the consummation of the IPO, (ii) when the Company first becomes subject to the periodic reporting
requirements of Section 12(g) or 15(d) of the Exchange Act, or (iii) upon the closing of a Deemed Liquidation Event, as such term is defined in the Restated Certificate, whichever event occurs first. 

3.4 Confidentiality. Each Investor agrees, severally and not jointly, that such Investor will keep confidential and will not disclose,
divulge, or use for any purpose (other than to monitor its investment in the Company) any confidential information obtained from the Company pursuant to the terms of this Agreement prior to the Company’s IPO (including notice of the
Company’s intention to file a registration statement), unless such confidential information (a) is known or becomes known to the public in general (other than as a result of a breach of this Section 3.4 by such
Investor), (b) is or has been independently developed or conceived by the Investor without use of the Company’s confidential information, or (c) is or has been made known or disclosed to the Investor by a third party without a breach of
any obligation of confidentiality such third party may have to the Company; provided, however, that an Investor may disclose confidential information (i) to its attorneys, accountants, consultants, and other professionals to the
extent necessary to obtain their services in connection with monitoring its investment in the Company, (ii) to any prospective purchaser of any Registrable Securities from such Investor, if such prospective purchaser agrees to be bound by the
provisions of this Section 3.4 and is not a Competitor of the Company, (iii) to any existing or prospective Affiliate, partner, member, stockholder, or wholly owned 

  
 15 

 
subsidiary of such Investor or any subsequent partnership under common investment management in the ordinary course of business, or otherwise as part of such Investor’s normal reporting or
review procedure, or in connection with such Investor’s or its Affiliates’ normal fundraising, marketing, informational or reporting activities, provided that such Investor informs such Person that such information is confidential
and directs such Person to maintain the confidentiality of such information, or (iv) as may otherwise be required by law, regulation, rule, court order or subpoena, provided that the Investor promptly notifies the Company of such
disclosure and takes reasonable steps to minimize the extent of any such required disclosure. The Company understands and acknowledges that in the ordinary course of business each Investor, and any of their respective representatives currently may
be invested in, may invest in or may consider investments in companies that have issued securities that are publicly traded (each, a “Public Company”). Accordingly, the Company covenants and agrees that before providing material non-public information about a Public Company (“Public Company Information”) to each Investor, as applicable, the Company will use commercially reasonable efforts to provide prior written notice to
the compliance personnel at each such Investor, as applicable, describing such information in reasonable detail. The Company shall not disclose Public Company Information to an Investor without written authorization from the applicable compliance
personnel, provided, however, that, the Company will be permitted to disclose agreements entered into with Public Companies in the ordinary course of business, such as routine customer, supplier, advertising and publishing agreements without such
written authorization. Further, the Company understands and acknowledges that the confidential information may be used by Deerfield, RA Capital, and Novo or any of their respective representatives in connection with evaluating investment
opportunities, trading securities in the public markets and participating in private investment transactions, but specifically excluding disclosing or otherwise providing confidential information (or any derivatives, extracts or summaries thereof)
to anyone other than Deerfield, RA Capital, and Novo or any of their respective representatives in violation of this Agreement. 
 4.
Rights to Future Stock Issuances. 
 4.1 Right of First Offer. Subject to the terms and conditions of this
Section 4.1 and applicable securities laws, if the Company proposes to offer or sell any New Securities, the Company shall first offer such New Securities to each Major Investor. A Major Investor shall be entitled to
apportion the right of first offer hereby granted to it, in such proportions as it deems appropriate, among (i) itself, (ii) its Affiliates and (iii) its beneficial interest holders, such as limited partners, members or any other Person
having “beneficial ownership,” as such term is defined in Rule 13d-3 promulgated under the Exchange Act, of such Major Investor (“Investor Beneficial Owners”); provided that
each such Affiliate or Investor Beneficial Owner (x) is not a Competitor, unless such party’s purchase of New Securities is otherwise consented to by the Board of Directors, and (y) agrees to enter into this Agreement and each of the
Voting Agreement and Right of First Refusal and Co-Sale Agreement as an “Investor” under each such agreement, or any amended and/or restated version of such agreements, as the case may be
(provided that any Competitor shall not be entitled to any rights as a Major Investor under Sections 3.1, 3.2 and 4.1 hereof). 

(a) The Company shall give notice (the “Offer Notice”) to each Major Investor, stating (i) its bona fide intention to
offer such New Securities, (ii) the number of such New Securities to be offered, and (iii) the price and terms, if any, upon which it proposes to offer such New Securities. 

(b) By notification to the Company within twenty (20) days after the Offer Notice is given, each Major Investor may elect to purchase or
otherwise acquire, at the price and on the terms specified in the Offer Notice, up to that number of such New Securities which equals the proportion that the Common Stock then held by such Major Investor (including all shares of Common Stock then
issuable (directly or indirectly) upon conversion and/or exercise, as applicable, of the Preferred Stock and any other Derivative Securities then held by such Major Investor) bears to the total Common Stock of the

  
 16 

 
Company then outstanding (assuming full conversion and/or exercise, as applicable, of all Preferred Stock and any other Derivative Securities then outstanding). At the expiration of such twenty
(20) day period, the Company shall promptly notify each Major Investor that elects to purchase or acquire all the shares available to it (each, a “Fully Exercising Investor”) of any other Major Investor’s failure to do
likewise. During the ten (10) day period commencing after the Company has given such notice, each Fully Exercising Investor may, by giving notice to the Company, elect to purchase or acquire, in addition to the number of shares specified above,
up to that portion of the New Securities for which Major Investors were entitled to subscribe but that were not subscribed for by the Major Investors. In the event there are two (2) or more such Fully Exercising Investors that elect to purchase
or acquire such New Securities that were not subscribed for by the Major Investors for a total number of New Securities in excess of the number proposed to be offered or sold by the Company, the remaining New Securities available to be purchased or
acquired under this Section 4.1(b) shall be allocated to such Fully Exercising Investors pro rata based on the number of shares of New Securities such Fully Exercising Investors have elected to purchase or acquire pursuant
to this Section 4.1(b) (without giving effect to any New Securities that any such Fully Exercising Investor has elected to purchase or acquire pursuant to this sentence). The closing of any sale pursuant to this
Section 4.1(b) shall occur within the later of one hundred and twenty (120) days of the date that the Offer Notice is given and the date of initial sale of New Securities pursuant to
Section 4.1(c). 
 (c) If all New Securities referred to in the Offer Notice are not elected to be purchased or
acquired as provided in Section 4.1(b), the Company may, during the ninety (90) day period following the expiration of the periods provided in Section 4.1(b), offer and sell the remaining
unsubscribed portion of such New Securities to any Person or Persons at a price not less than, and upon terms no more favorable to the offeree than, those specified in the Offer Notice. If the Company does not enter into an agreement for the sale of
the New Securities within such period, or if such agreement is not consummated within thirty (30) days of the execution thereof, the right provided hereunder shall be deemed to be revived and such New Securities shall not be offered unless
first reoffered to the Major Investors in accordance with this Section 4.1. 
 (d) The right of first offer in
this Section 4.1 shall not be applicable to (i) Exempted Securities (as defined in the Restated Certificate); (ii) shares of Common Stock issued in the IPO; and (iii) the issuance of shares of Series B Preferred
Stock issued pursuant to Section 1.2 of the Purchase Agreement. 
 4.2 Termination. The covenants set forth in
Section 4.1 shall terminate and be of no further force or effect (i) immediately before the consummation of the IPO, (ii) when the Company first becomes subject to the periodic reporting requirements of
Section 12(g) or 15(d) of the Exchange Act, or (iii) upon the closing of a Deemed Liquidation Event, as such term is defined in the Restated Certificate, whichever event occurs first. 

5. Additional Covenants. 

5.1 Board Matters. 
 (a)
The Board of Directors shall convene for meetings at least quarterly, unless otherwise approved by the Board of Directors including a majority of the then-serving Preferred Directors. 

(b) Upon request, the Company shall promptly reimburse in full, each non-employee director of the
Company for his or her reasonable, customary and documented out-of-pocket expenses incurred in the course of business conducted on behalf of the Company (including
without limitation attendance of meetings of the Board of Directors). 

  
 17 

 (c) Each Preferred Director shall be entitled to serve on each committee of the Board of
Directors. 
 5.2 Matters Requiring Preferred Director Approval. The Company hereby covenants and agrees with each of the Investors
that it shall not, without approval of the Board of Directors, which approval must include the affirmative vote of at least a majority of the then-serving Preferred Directors: 

(a) approve any annual operating plan, budgets or any changes thereto; 

(b) approve the making of any expenditures exceeding by more than $1,000,000 in the aggregate the budget approved by the Board of Directors
specifically for such expenditures; 
 (c) approve any new expenditures individually or in the aggregate exceeding $1,000,000; 

(d) appoint, dismiss or change the Company’s auditor or general outside counsel; 

(e) sell, transfer, lease, assignment, encumber, license or dispose of any assets or intellectual property of the Company (whether by a
single transaction or a series of related transactions) the aggregate fair market value of which exceeds $1,000,000; 
 (f) purchase or
acquire any assets or intellectual property (whether by a single transaction or a series of related transactions) the aggregate purchase price or cost to acquire of which exceeds $1,000,000; 

(g) consummate an initial public offering of equity securities of the Company or any of its subsidiaries; 

(h) make any change to the principal business of the Company, enter into new lines of business, or exit a current line of business; 

(i) make, or permit any subsidiary to make, any loan or advance to, or own any stock or other securities of, any subsidiary or other
corporation, partnership, or other entity unless it is wholly owned by the Company; 
 (j) make, or permit any subsidiary to make, any loan
or advance to any Person, including, without limitation, any employee or director of the Company or any subsidiary, except advances and similar expenditures in the ordinary course of business or under the terms of an employee stock or option plan
approved by the Board of Directors; 
 (k) guarantee, directly or indirectly, or permit any subsidiary to guarantee, directly or
indirectly, any indebtedness except for trade accounts of the Company or any subsidiary arising in the ordinary course of business; 
 (l)
make any investment inconsistent with any investment policy approved by the Board of Directors; 

  
 18 

 (m) otherwise enter into or be a party to any transaction with any director, officer, or
employee of the Company or any “associate” (as defined in Rule 12b-2 promulgated under the Exchange Act) of any such Person, except for transactions contemplated by this Agreement and the Purchase
Agreement; transactions resulting in payments to or by the Company in an aggregate amount less than $250,000 per year; or transactions made in the ordinary course of business and pursuant to reasonable requirements of the Company’s business and
upon fair and reasonable terms that are approved by a majority of the Board of Directors; 
 (n)
in-license any material intellectual property; 
 (o) create any subsidiary of the Company; 

(p) make any material change in the accounting policies or principles of the Company, except with prior approval of the Company’s
auditors; 
 (q) enter into a joint venture; or 

(r) file for bankruptcy, insolvency, or other similar proceedings. 

5.3 Director’s & Officer’s Liability. The Company has and shall maintain, from financially sound and
reputable insurers, Directors and Officers liability insurance in an amount not less than $3,000,000, unless otherwise approved by the Investors. 

5.4 Indemnification Matters. The Company shall use its best efforts to provide that its Restated Certificate and bylaws provide for
indemnification of officers and directors of the Company to the maximum extent permitted by law. The Company shall enter into a customary indemnification agreement in form satisfactory to the Investors with each
non-employee member of the Board of Directors. The Company hereby acknowledges that one (1) or more of the directors nominated to serve on the Board of Directors by the Investors (each an
“Investor Director”) may have certain rights to indemnification, advancement of expenses and/or insurance provided by one or more of the Investors and certain of their Affiliates (collectively, the “Investor
Indemnitors”). The Company hereby agrees (a) that it is the indemnitor of first resort (i.e., its obligations to any such Investor Director are primary and any obligation of the Investor Indemnitors to advance expenses or
to provide indemnification for the same expenses or liabilities incurred by such Investor Director are secondary), (b) that it shall be required to advance the full amount of expenses incurred by such Investor Director and shall be liable for the
full amount of all expenses, judgments, penalties, fines and amounts paid in settlement by or on behalf of any such Investor Director to the extent legally permitted and as required by the Company’s Certificate of Incorporation or Bylaws of the
Company (or any agreement between the Company and such Investor Director), without regard to any rights such Investor Director may have against the Investor Indemnitors, and, (c) that it irrevocably waives, relinquishes and releases the
Investor Indemnitors from any and all claims against the Investor Indemnitors for contribution, subrogation or any other recovery of any kind in respect thereof. The Company further agrees that no advancement or payment by the Investor Indemnitors
on behalf of any such Investor Director with respect to any claim for which such Investor Director has sought indemnification from the Company shall affect the foregoing and the Investor Indemnitors shall have a right of contribution and/or be
subrogated to the extent of such advancement or payment to all of the rights of recovery of such Investor Director against the Company. The Investor Directors and the Investor Indemnitors are intended third-party beneficiaries of this
Section 5.4 and shall have the right, power and authority to enforce the provisions of this Section 5.4 as though they were a party to this Agreement. 

5.5 Successor Indemnification. If the Company or any of its successors or assignees consolidates with or merges into any other Person
and is not the continuing or surviving corporation or entity of such consolidation or merger, then to the extent necessary, proper provision shall be made so that the successors and assignees of the Company assume the obligations of the Company with
respect to indemnification of members of the Board of Directors as in effect immediately before such transaction, whether such obligations are contained in the Company’s Bylaws, its Certificate of Incorporation, or elsewhere, as the case may
be. 

  
 19 

 5.6 Prevention of Corruption. The Company shall use commercially reasonable efforts
to (i) ensure that the Company and any of its affiliates operate to the same standards of conduct set forth in “Prevention of Corruption – Third Party Guidelines” of GlaxoSmithKline plc (“GSK”) found at:
https://www.gsk.com/media/3916/abac-third-party-guidelines.pdf and (ii) notify the Preferred Investors if it becomes aware of any activities or proposed activities to be conducted by itself or any of its Affiliates that may be contrary to
GSK’s publicly announced ethical standards or the principles set forth in the “Prevention of Corruption – Third Party Guidelines” of which the Company is aware or has been notified. 

5.7 Publicity. The Company shall not use the name of Samsara, LSP, SR One, Novo, NEA, GSK, Deerfield, RA Capital, or Amgen Ventures LLC
in any trade publication, marketing materials or otherwise to the general public, in each case without the prior written consent of such Investor, which consent may be withheld in its sole discretion; provided that (i) the parties
anticipate that there will be a mutually-agreed press release announcing the closing of the transactions contemplated in the Purchase Agreement; (ii) following the public announcement contemplated in clause (i), the Company may confirm that
Samsara, LSP, SR One, Novo, NEA, GSK, Deerfield, RA Capital, and Amgen Ventures LLC are investors in the Company (but not the amount or terms thereof) in a form of disclosure that has been previously approved by such Investors; and (iii) the
Company may list or disclose Samsara’s, LSP’s, SR One’s, Novo’s, NEA’s, GSK’s, Deerfield’s, RA Capital’s and Amgen Ventures LLC’s names when identifying such Investor on the Company’s website or in
Company presentations. 
 5.8 Employee Agreements. The Company will cause each person now or hereafter employed by it or by any
subsidiary (or engaged by the Company or any subsidiary as a consultant/independent contractor) with access to confidential information and/or trade secrets to enter into a nondisclosure and proprietary rights assignment agreement in substantially
the form provided or made available to Investors and/or their counsel on or before the date hereof. In addition, the Company shall not amend, modify, terminate, waive, or otherwise alter, in whole or in part, any of the above-referenced agreements
or any restricted stock agreement between the Company and any employee, without the consent of the Board of Directors, including a majority of the then-serving Preferred Directors. 

5.9 Employee Stock. Unless otherwise approved by the Board of Directors, all future employees and consultants of the Company who
purchase, receive options to purchase, or receive awards of shares of the Company’s capital stock after the date hereof shall be required to execute restricted stock or option agreements, as applicable, providing for (i) vesting of shares
over a four (4) year period, with the first twenty-five percent (25%) of such shares vesting following twelve (12) months of continued employment or service, and the remaining shares vesting in equal monthly installments over the following
thirty-six (36) months, and (ii) a market stand-off provision substantially similar to that in Section 2.11. In addition, unless
otherwise approved by the Board of Directors, including a majority of the then-serving Preferred Directors, the Company shall retain a “right of first refusal” on transfers of Common Stock held by current or former service providers to the
Company until the Company’s IPO, no restricted stock agreements or stock option agreements shall contain any provisions providing for acceleration of vesting, and the Company shall have the right to repurchase unvested shares at cost upon
termination of employment of a holder of restricted stock. 
 5.10 Qualified Small Business Stock. The Company shall use commercially
reasonable efforts to cause the shares of Series B Preferred Stock issued pursuant to the Purchase Agreement, as well as any shares into which such shares are converted, within the meaning of Section 1202(f) of the Internal Revenue Code (the
“Code”), to constitute “qualified small business stock” as defined in Section 1202(c) 

  
 20 

 
of the Code; provided, however, that such requirement shall not be applicable if the Board of Directors of the Company, including a majority of the then-serving Preferred Directors,
determines, in its good-faith business judgment, that such qualification is inconsistent with the best interests of the Company. The Company shall submit to its stockholders (including the Investors) and to the Internal Revenue Service any reports
that may be required under Section 1202(d)(1)(C) of the Code and the regulations promulgated thereunder. In addition, within twenty (20) business days after any Investor’s written request therefor, the Company shall, at its option,
either (i) deliver to such Investor a written statement indicating whether (and what portion of) such Investor’s interest in the Company constitutes “qualified small business stock” as defined in Section 1202(c) of the Code
or (ii) deliver to such Investor such factual information in the Company’s possession as is reasonably necessary to enable such Investor to determine whether (and what portion of) such Investor’s interest in the Company constitutes
“qualified small business stock” as defined in Section 1202(c) of the Code. 
 5.11 FCPA. The Company represents that
it shall not (and shall not permit any of its subsidiaries or affiliates or any of its or their respective directors, officers, managers, employees, independent contractors, representatives or agents to) directly or indirectly, offer, promise,
authorize or make any payment to, or otherwise contribute any item of value to, any third party, including any “foreign official” (as such term is defined in the U.S. Foreign Corrupt Practices Act of 1977, as amended (the
“FCPA”)), foreign political party or official thereof or candidate for foreign political office, in each case, in violation of the FCPA, the U.K. Bribery Act, or any other applicable anti-bribery or anti-corruption law. The Company
further represents that it shall (and shall cause each of its subsidiaries and affiliates to) cease all of its or their respective activities, as well as remediate any actions taken by the Company, its subsidiaries or affiliates, or any of their
respective directors, officers, managers, employees, independent contractors, representatives or agents in violation of the FCPA, the U.K. Bribery Act, or any other applicable anti-bribery or anti-corruption law. The Company further represents that
it shall (and shall cause each of its subsidiaries and affiliates to) maintain systems of internal controls (including, but not limited to, accounting systems, purchasing systems and billing systems) and written policies to ensure compliance with
the FCPA, the U.K. Bribery Act, or any other applicable anti-bribery or anti-corruption law and to ensure that all books and records of the Company and its subsidiaries accurately and fairly reflect, in reasonable detail, all transactions and
dispositions of funds and assets. Upon request, the Company agrees to provide responsive information and/or certifications concerning its compliance with applicable anti-bribery and anti-corruption laws. The Company shall promptly notify each
Investor if the Company becomes aware of any Enforcement Action (as defined in the Purchase Agreement). The Company shall, and shall cause any direct or indirect subsidiary or entity controlled by it, whether now in existence or formed in the
future, to comply with the FCPA. The Company shall use its best efforts to cause any direct or indirect subsidiary, whether now in existence or formed in the future, to comply in all material respects with all applicable laws. 

5.12 Right to Conduct Activities. The Company hereby agrees and acknowledges that certain Investors are professional investment funds
or organizations, and as such review the business plans and related proprietary information of many enterprises and invest in numerous portfolio companies, some of which may be deemed competitive with the Company’s business (as currently
conducted or as currently proposed to be conducted), and that certain Investors each have affiliated entities that may be deemed competitive with the Company’s business (as currently conducted or as currently proposed to be conducted). The
Company hereby agrees that, to the extent permitted under applicable law, such Investors or their respective Affiliates shall not be liable to the Company for any claim arising out of, or based upon, (i) the investment by such Investors or
their respective Affiliates in any entity competitive with the Company, or (ii) actions taken by any partner, officer, employee or other representative of such Investors or their respective Affiliates to assist any such competitive company,
whether or not such action was taken as a member of the board of directors of such competitive company or otherwise, and whether or not such action has a detrimental effect on the Company; provided, however, that the foregoing shall
not relieve (x) any of the Investors from liability associated with the unauthorized disclosure of the Company’s confidential information obtained pursuant to this Agreement, or (y) any director or officer of the Company from any
liability associated with his or her fiduciary duties to the Company. 

  
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 5.13 Harassment Policy. The Company shall, within one hundred twenty (120) days
following the date of this Agreement, adopt and thereafter maintain in effect (i) a Code of Conduct governing appropriate workplace behavior and (ii) an Anti-Harassment and Discrimination Policy prohibiting discrimination and harassment at
the Company. Such policy shall be reviewed and approved by the Board of Directors. 
 5.14 Expenses of Counsel. In the event of a
transaction which is a Sale of the Company (as defined in the Voting Agreement), the reasonable fees and disbursements, not to exceed $100,000 in the aggregate, of one counsel for the Major Investors (the “Investor Counsel”) in
their capacities as stockholders, shall be borne and paid by the Company. In connection with the negotiation of a transaction which, if consummated would constitute a Sale of the Company (the “Prospective Sale”), the Company shall
obtain the ability to share with the Investor Counsel (and such counsel’s clients, subject to appropriate exceptions for direct conflicts of interest) and shall share certain confidential information (including initial and all subsequent drafts
of the letter of intent and other transaction documents and related noncompete, employment, consulting and other compensation agreements and plans) pertaining to and memorializing the Prospective Sale. Such confidential information shall be shared
with Investor Counsel promptly as available and in no case fewer than fifteen (15) days prior to the solicitation of consent by the Company’s stockholders to approve the Prospective Sale. In the event that Investor Counsel deems it
appropriate, in its reasonable discretion, to enter into a joint defense agreement or other arrangement to enhance the ability of the parties to protect their communications and other reviewed materials under the attorney client privilege, the
Company shall, and shall direct its counsel to, execute and deliver to Investor Counsel and its clients such an agreement in form and substance reasonably acceptable to Investor Counsel. In the event that one or more of the other party or parties to
such transactions require the clients of Investor Counsel to enter into a confidentiality agreement and/or joint defense agreement in order to receive such information, then the Company shall share whatever information can be shared without entry
into such agreement and shall, at the same time, in good faith work expeditiously to enable Investor Counsel and its clients to negotiate and enter into the appropriate agreement(s) without undue burden to the clients of Investor Counsel. 

5.15 Critical Technology Matters. 

(a) To the extent that, to the knowledge of the Company after due and reasonable inquiry: (a) any
pre-existing products or services provided by the Company are re-categorized by the U.S. government as “critical technologies” within the meaning of
Section 721 of the Defense Production Act of 1950, as amended, including all implementing regulations thereof (the “DPA”), or would reasonably be considered to constitute the design, fabrication, development, testing,
production or manufacture of critical technologies after a re-categorization of selected technologies by the U.S. government, or (b) after execution of the Purchase Agreement, the Company engages in any
activity that could reasonably be considered to constitute the design, fabrication, development, testing, production or manufacture of a critical technology within the meaning of the DPA, the Company shall promptly notify the Investors of such
change in the categorization of its products or services and shall provide the Investors notice of such change as soon as reasonably practicable in advance of the Milestone Closing and/or any other financing or investment of a type contemplated by
the DPA in the Company by the Investors or any other party 
 (b) If and only if (i) the Committee on Foreign Investment in the United
States or any member agency thereof acting in such capacity (“CFIUS”) requests or requires that any Investor or the Company file a notice or declaration with CFIUS pursuant to the DPA with respect to such Investor’s

  
 22 

 
investment in the Company (the “Covered Transactions”) or (ii) such Investor or the Company reasonably and on the advice of legal counsel determines that a filing with CFIUS
with respect to the Covered Transactions is required by or advisable to comply with applicable law, then in either case, (i) or (ii), (x) the Company and the applicable Investor(s) shall, and shall cause their respective affiliates to,
cooperate with the other parties hereto and use reasonable best efforts to promptly file a CFIUS filing in the requested, required or advisable form in accordance with the DPA and promptly respond to any CFIUS request for information and/or
documents with respect to such filing and/or the Covered Transactions; and (y) the Company and the applicable Investor(s) shall, and shall cause their respective affiliates to, use reasonable best efforts to obtain, as applicable, the CFIUS
Satisfied Condition (as defined in the Purchase Agreement). In the event of a CFIUS Filing Event neither (A) the “Special Mandatory Conversion” provisions of the Restated Certificate nor (B) any future provisions of the Restated
Certificate serving a similar purpose with respect to a future acquisition of shares by the Investors shall apply to any Investors making filings pursuant to the DPA under this Section 5.15(b)unless and until the CFIUS Satisfied Condition is
achieved. For the avoidance of doubt, each such Investor shall have no obligation to accept or take any action, condition or restriction with respect to the Covered Transactions in order to achieve the CFIUS Satisfied Condition. 

(c) If, in connection with a CFIUS review pursuant to the DPA, any Non-U.S. Investor is requested or
required by CFIUS to sell, divest, or dispose of any of the shares of the Company it then holds (the “Investor Shares”) or otherwise reduce its holdings in the Company (such CFIUS request or requirement a “Divestiture
Order” and such Non-U.S. Investor a “Divesting Non-U.S. Investor”) then (i) the Divesting
Non-U.S. Investor shall comply with the Divestiture Order in full and, to the extent reasonably practicable, consult with the Company regarding the Divestiture Order, (ii) the Company shall, to the extent
reasonably practicable, assist the Divesting Non-U.S. Investor in connection with such Divesting Non-U.S. Investor’s compliance with the Divestiture Order, and
(iii) only after the Divesting Non-U.S. Investor has determined the proposed purchaser(s) or transferee(s) (each a “Proposed Transferee”) of the Investor Shares, the Divesting Non-U.S. Investor shall deliver to the Company a written notice (the “Notice of Proposed CFIUS Transfer”) stating the aggregate number of Investor Shares proposed to be transferred to each Proposed
Transferee. So long as such proposed transfer is in compliance with the Divestiture Order and all applicable securities laws, the Company agrees not to withhold any required consent and to cooperate in facilitating such transfer. Further,
notwithstanding any other provision in this Agreement or any other Ancillary Agreement among the Parties, the Company agrees that all rights of the Divesting Non-U.S. Investor associated with the Investor
Shares being transferred, including without limitation, registration rights, rights of first refusal and co-sale, rights to designate a director (subject to any applicable share holdings threshold in existence
at the time of transfer), shall be transferable to the Proposed Transferee. 
 (d) For the avoidance of doubt, none of the Company nor its
respective affiliates and directors, officers, agents, stockholders and advisers shall be liable with respect to claims and damages that may result, directly or indirectly, after the date hereof, arising out of losses a party (other than the
Company) may suffer relating to the required divestiture of that party’s Company capital stock, resulting from such party’s decision not to make a voluntary filing pursuant to the DPA in connection with the transactions contemplated by the
Purchase Agreement. 
 5.16 Voting Thresholds. In the event one or more Investors becomes a Defaulting Purchaser (as defined in the
Purchase Agreement) and as a result of which Investors holding shares of Series A Preferred Stock constitute the Required Holders, then the Company and each Investor hereby agree to, and shall, take all actions necessary to revise the definition of
“Required Holders” in each of the Transaction Documents and the Company’s certificate of incorporation such that the voting threshold set forth in such definition requires the greater of (a) at least 66 2/3% and (b) at least
that the minimum percentage of Preferred Stock then collectively held, on an as-converted basis, by NEA, Novo, SR One and at least one Major Investor that (i) holds Series B Preferred Stock and
(ii) does not hold (and is not an Affiliate of a holder of) Series A Preferred Stock. 

  
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 5.17 Termination of Covenants. The covenants set forth in this
Section 5, except for Sections 5.4, 5.5 and 5.12 which shall terminate on the fifth anniversary of the IPO, shall terminate and be of no further force or effect (i) immediately before the
consummation of the IPO, (ii) when the Company first becomes subject to the periodic reporting requirements of Section 12(g) or 15(d) of the Exchange Act, or (iii) upon the consummation of a Deemed Liquidation Event, as such term is
defined in the Restated Certificate, whichever event occurs first. 
 6. Miscellaneous. 

6.1 Successors and Assigns. The rights under this Agreement may be assigned (but only with all related obligations) by a Holder to a
transferee of Registrable Securities that (i) is an Affiliate, partner or stockholder of a Holder; (ii) is a Holder’s Immediate Family Member or trust for the benefit of an individual Holder or one or more of such Holder’s
Immediate Family Members; or (iii) after such transfer, holds at least 250,000 shares of Registrable Securities (subject to appropriate adjustment for any stock split, stock dividend, combinations, recapitalizations, reclassifications and the
like); provided, however, that (x) the Company is, within a reasonable time after such transfer, furnished with written notice of the name and address of such transferee and the Registrable Securities with respect to which such rights
are being transferred; and (y) such transferee agrees in a written instrument delivered to the Company to be bound by and subject to the terms and conditions of this Agreement, including the provisions of Section 2.11.
For the purposes of determining the number of shares of Registrable Securities held by a transferee, the holdings of a transferee (1) that is an Affiliate, partner or stockholder of a Holder; (2) who is a Holder’s Immediate Family
Member; or (3) that is a trust for the benefit of an individual Holder or such Holder’s Immediate Family Member shall be aggregated together and with those of the transferring Holder; provided further that all transferees who would
not qualify individually for assignment of rights shall, as a condition to the applicable transfer, have a single attorney-in-fact for the purpose of exercising any
rights, receiving notices, or taking any action under this Agreement. The terms and conditions of this Agreement inure to the benefit of and are binding upon the respective successors and permitted assignees of the parties. Nothing in this
Agreement, express or implied, is intended to confer upon any party other than the parties hereto or their respective successors and permitted assignees any rights, remedies, obligations or liabilities under or by reason of this Agreement, except as
expressly provided herein. 
 6.2 Governing Law. This Agreement shall be governed by the internal law of the State of Delaware,
without regard to any conflict of laws rules that would require the application of the laws of any other jurisdiction. 
 6.3
Counterparts. This Agreement may be executed in two (2) or more counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument. Counterparts may be delivered via electronic
mail (including pdf or any electronic signature complying with the U.S. federal ESIGN Act of 2000, e.g., www.docusign.com) or other transmission method and any counterpart so delivered shall be deemed to have been duly and validly delivered
and be valid and effective for all purposes. 
 6.4 Titles and Subtitles. The titles and subtitles used in this Agreement are for
convenience only and are not to be considered in construing or interpreting this Agreement. 

  
 24 

 6.5 Notices. All notices and other communications given or made pursuant to this
Agreement shall be in writing and shall be deemed effectively given upon the earlier of actual receipt or (i) personal delivery to the party to be notified; (ii) when sent, if sent by electronic mail during the recipient’s normal business
hours, and if not sent during normal business hours, then on the recipient’s next business day; (iii) five (5) days after having been sent by registered or certified mail, return receipt requested, postage prepaid; or (iv) one (1)
business day after the business day of deposit with a nationally recognized overnight courier, freight prepaid, specifying next-day delivery, with written verification of receipt. All communications shall be
sent to the respective parties at their addresses as set forth on Schedule A hereto, or to the principal office of the Company and to the attention of the Chief Executive Officer, in the case of the Company, or to such email address or
address as subsequently modified by written notice given in accordance with this Section 6.5. If notice is given to the Company, a copy shall also be sent to (which copy shall not constitute notice): Wilson Sonsini
Goodrich & Rosati, P.C., 12235 El Camino Real, San Diego, California 92130, Attn: Daniel R. Koeppen, email: dkoeppen@wsgr.com, and if notice is given to the Investors, a copy shall also be sent to (which copy shall not constitute notice):
Wilmer Cutler Pickering Hale and Dorr LLP, 60 State Street, Boston, Massachusetts 02109, Attn: Jason L. Kropp, email: jason.kropp@wilmerhale.com. 

Subject to the limitations set forth in Delaware General Corporation Law §232(e), each Investor consents to the delivery of any notice to
stockholders given by the Company under the Delaware General Corporation Law or the Company’s certificate of incorporation or bylaws by electronic mail to the electronic mail address set forth on Schedule A (or to any other electronic
mail address for the Investor in the Company’s records), in each case with confirmation of receipt. This consent may be revoked by an Investor by written notice to the Company and may be deemed revoked in the circumstances specified in Delaware
General Corporation Law §232. 
 6.6 Amendments and Waivers. Any term of this Agreement may be amended and the observance of any
term of this Agreement may be waived (either generally or in a particular instance, and either retroactively or prospectively) only with the written consent of the Company and the holders of at least
two-thirds of the Registrable Securities then outstanding; provided that the Company may in its sole discretion waive compliance with Section 2.12(c) (and the Company’s
failure to object promptly in writing after notification of a proposed assignment allegedly in violation of Section 2.12(c) shall be deemed to be a waiver); provided further that any provision hereof may be waived by
any waiving party on such party’s own behalf, without the consent of any other party; provided further that any amendment, termination or waiver of the definition of “Major Investor,” Section 2.8(b),
2.8(d), 2.11, 5.6, 5.7, 5.12, or 6.14 or this clause of Section 6.6 shall require the written consent of each of Samsara, LSP, NEA, Novo, SR One, RA Capital and Deerfield; provided
further that any amendment, termination or waiver of Section 5.15 or this clause of Section 6.6 shall require the written consent of each of LSP and Novo; provided further that any
amendment, termination or waiver of Section 5.16 or this clause of Section 6.6 shall require the written consent of each of Samsara and LSP; and provided further that any amendment,
termination or waiver of Section 3.4 or this clause of Section 6.6 shall require the written consent of each of Deerfield and RA Capital. Notwithstanding the foregoing, (a) this Agreement may not be amended or
terminated and the observance of any term hereof may not be waived with respect to any Investor without the written consent of such Investor, unless such amendment, termination, or waiver applies to all Investors in the same fashion and
(b) Sections 3.1 and 3.2, Section 4 and any other section of this Agreement applicable to the Major Investors (including this clause (b) of this Section 6.6) may not be
amended, terminated or waived without the written consent of the holders of at least two-thirds of the Registrable Securities then outstanding and held by the Major Investors. In the event of any waiver of
Section 4.1 with respect to an issuance of New Securities and the subsequent purchase by any Major Investor (a “Participating Major Investor”) of any portion of such New Securities, then all other Major
Investors shall have the right to purchase a portion of the New Securities equal to the product obtained by (A) such Major Investor’s pro rata share calculated in accordance with Section 4.1 by (B) the
quotient obtained by (x) the number of shares purchased by the Participating Major Investor divided by (y) the maximum number of shares that could have been purchased by such Participating Major Investor pursuant to its pro rata share
calculated in 

  
 25 

 
accordance with Section 4.1; provided, for clarity, that if there is more than one Participating Major Investor, then the larger fraction obtained pursuant to
(B) above shall apply. Notwithstanding the foregoing, Schedule A hereto may be amended by the Company from time to time to add transferees of any Registrable Securities in compliance with the terms of this Agreement without the consent
of the other parties; and Schedule A hereto may also be amended by the Company after the date of this Agreement without the consent of the other parties to add information regarding any additional Investor who becomes a party to this
Agreement in accordance with Section 6.9. The Company shall give prompt notice of any amendment or termination hereof or waiver hereunder to any party hereto that did not consent in writing to such amendment, termination,
or waiver. Any amendment, termination, or waiver effected in accordance with this Section 6.6 shall be binding on all parties hereto, regardless of whether any such party has consented thereto. No waivers of or exceptions
to any term, condition, or provision of this Agreement, in any one or more instances, shall be deemed to be or construed as a further or continuing waiver of any such term, condition, or provision. 

6.7 Severability. In case any one or more of the provisions contained in this Agreement is for any reason held to be invalid, illegal
or unenforceable in any respect, such invalidity, illegality, or unenforceability shall not affect any other provision of this Agreement, and such invalid, illegal, or unenforceable provision shall be reformed and construed so that it will be valid,
legal, and enforceable to the maximum extent permitted by law. 
 6.8 Aggregation of Stock. All shares of Registrable Securities held
or acquired by Affiliates shall be aggregated together for the purpose of determining the availability of any rights under this Agreement and such Affiliated persons may apportion such rights as among themselves in any manner they deem appropriate.

 6.9 Additional Investors. Notwithstanding anything to the contrary contained herein, if the Company issues additional shares of
the Company’s Series B Preferred Stock after the date hereof, whether pursuant to the Purchase Agreement or otherwise, any purchaser of such shares of Series B Preferred Stock may become a party to this Agreement by executing and delivering an
additional counterpart signature page to this Agreement, and thereafter shall be deemed an “Investor” for all purposes hereunder. No action or consent by the Investors shall be required for such joinder to this Agreement by such additional
Investor, so long as such additional Investor has agreed in writing to be bound by all of the obligations as an “Investor” hereunder. 

6.10 Entire Agreement. This Agreement (including any Schedules and Exhibits hereto) constitutes the full and entire understanding and
agreement among the parties with respect to the subject matter hereof, and any other written or oral agreement relating to the subject matter hereof existing between the parties is expressly canceled. Upon the effectiveness of this Agreement, the
Prior Agreement shall be deemed amended and restated and superseded and replaced in its entirety by this Agreement, and shall be of no further force or effect. 

6.11 Dispute Resolution. The parties (a) hereby irrevocably and unconditionally submit to the jurisdiction of the state courts of
Delaware and to the jurisdiction of the United States District Court for the District of Delaware for the purpose of any suit, action or other proceeding arising out of or based upon this Agreement, (b) agree not to commence any suit, action or
other proceeding arising out of or based upon this Agreement except in the state courts of Delaware or the United States District Court for the District of Delaware, and (c) hereby waive, and agree not to assert, by way of motion, as a defense,
or otherwise, in any such suit, action or proceeding, any claim that it is not subject personally to the jurisdiction of the above-named courts, that its property is exempt or immune from attachment or execution, that the suit, action or proceeding
is brought in an inconvenient forum, that the venue of the suit, action or proceeding is improper or that this Agreement or the subject matter hereof may not be enforced in or by such court. 

  
 26 

 WAIVER OF JURY TRIAL: EACH PARTY HEREBY WAIVES ITS RIGHTS TO A JURY TRIAL OF ANY CLAIM OR CAUSE OF ACTION
BASED UPON OR ARISING OUT OF THIS AGREEMENT, THE OTHER TRANSACTION DOCUMENTS, THE SECURITIES OR THE SUBJECT MATTER HEREOF OR THEREOF. THE SCOPE OF THIS WAIVER IS INTENDED TO BE ALL-ENCOMPASSING OF ANY AND ALL DISPUTES THAT MAY BE FILED IN ANY COURT
AND THAT RELATE TO THE SUBJECT MATTER OF THIS TRANSACTION, INCLUDING, WITHOUT LIMITATION, CONTRACT CLAIMS, TORT CLAIMS (INCLUDING NEGLIGENCE), BREACH OF DUTY CLAIMS, AND ALL OTHER COMMON LAW AND STATUTORY CLAIMS. THIS SECTION HAS BEEN FULLY
DISCUSSED BY EACH OF THE PARTIES HERETO AND THESE PROVISIONS WILL NOT BE SUBJECT TO ANY EXCEPTIONS. EACH PARTY HERETO HEREBY FURTHER WARRANTS AND REPRESENTS THAT SUCH PARTY HAS REVIEWED THIS WAIVER WITH ITS LEGAL COUNSEL, AND THAT SUCH PARTY
KNOWINGLY AND VOLUNTARILY WAIVES ITS JURY TRIAL RIGHTS FOLLOWING CONSULTATION WITH LEGAL COUNSEL. 
 The prevailing party shall be entitled
to reasonable attorney’s fees, costs, and necessary disbursements in addition to any other relief to which such party may be entitled. Each of the parties to this Agreement consents to personal jurisdiction for any equitable action sought in
the U.S. District Court for the District of Delaware or any court of the State of Delaware having subject matter jurisdiction. 
 6.12
Delays or Omissions. No delay or omission to exercise any right, power, or remedy accruing to any party under this Agreement, upon any breach or default of any other party under this Agreement, shall impair any such right, power, or remedy of
such nonbreaching or nondefaulting party, nor shall it be construed to be a waiver of or acquiescence to any such breach or default, or to any similar breach or default thereafter occurring, nor shall any waiver of any single breach or default be
deemed a waiver of any other breach or default theretofore or thereafter occurring. All remedies, whether under this Agreement or by law or otherwise afforded to any party, shall be cumulative and not alternative. 

6.13 Acknowledgment. The Company acknowledges that certain of the Investors and their respective Affiliates are in the business of
venture capital investing and therefore review the business plans and related proprietary information of many enterprises, including enterprises which may have products or services which compete directly or indirectly with those of the Company.
Nothing in this Agreement shall preclude or in any way restrict the Investors and their respective Affiliates from investing or participating in any particular enterprise whether or not such enterprise has products or services which compete with
those of the Company. 
 6.14 Limitation of Liability; Freedom to Operate Affiliates. The total liability, in the aggregate, of each
of the Investors, and its respective Affiliates, officers, directors, employees and agents, for any and all claims, losses, costs or damages, including attorneys’ and accountants’ fees and expenses and costs of any nature whatsoever or
claims or expenses resulting from or in any way related to this Agreement from any cause or causes shall be several and not joint with the other Investors and shall not exceed the total purchase price paid to the Company by the Investors,
respectively, for the Shares (as defined in the Purchase Agreement) under the Purchase Agreement and the shares of Series A Preferred Stock held by such Purchaser. It is intended that this limitation apply to any and all liability or cause of action
however alleged or arising, unless otherwise prohibited by law. Nothing in this Agreement or the Transaction Agreements shall restrict each Investor’s freedom to operate any of its affiliates (including any such affiliate that is a potential
competitor of the Company). 

  
 27 

 [Remainder of Page Intentionally Left Blank] 

  
 28 

 IN WITNESS WHEREOF, the parties have executed this Amended and Restated Investors’
Rights Agreement as of the date first written above. 
  

			
	NKARTA, INC.
		
	By:	 	/s/ Paul Hastings
	Name:	 	Paul Hastings
	Title:	 	President

  

			
	Address:
		
		 	 6000 Shoreline Court, Suite 102
 South San
Francisco, CA 94080

 SIGNATURE PAGE TO 

AMENDED AND RESTATED INVESTORS’ RIGHTS AGREEMENT
OF 
 NKARTA, INC. 

 IN WITNESS WHEREOF, the parties have executed this Amended and Restated Investors’
Rights Agreement as of the date first written above. 
  

			
	INVESTORS:
	
	SAMSARA BIOCAPITAL, L.P.
	
	
		
	By:	 	Samsara BioCapital GP, LLC, General Partner
		
	By:	 	/s/ Srini Akkaraju
	Name:	 	Srini Akkaraju
	Title:	 	Managing General Partner

  

			
		
		 	Address:
		
		 	 628 Middlefield Road
 Palo Alto, CA 94301

Attn: Michael Dybbs 
 Email: [***]

		
		 	with a copy (which shall not constitute notice) to:
		
		 	 Wilmer Cutler Pickering Hale and Dorr LLP
 60
State Street Boston, MA 02109
 Attn: Jason L. Kropp
 Email:
jason.kropp@wilmerhale.com.

 SIGNATURE PAGE TO 

AMENDED AND RESTATED INVESTORS’ RIGHTS AGREEMENT
OF 
 NKARTA, INC. 

 IN WITNESS WHEREOF, the parties have executed this Amended and Restated Investors’
Rights Agreement as of the date first written above. 
  

			
	INVESTORS:
	
	NOVO HOLDINGS A/S
		
	By:	 	/s/ Thomas Dyrberg
	Name:	 	Thomas Dyrberg, under specific power of attorney
	Title:	 	Managing Partner, Novo Holdings A/S

  

			
	
		
		 	Address:
		
		 	 Tuborg Havnevej 19
 DK-2900 Hellerup
 Denmark

Attn: Heather Ludvigsen
 Email: [***]

		
		 	With a copy (which shall not constitute notice) to:
		
		 	 Novo Ventures (US), Inc,
 501 2nd Street,
Suite 300
 San Francisco, CA 94107
 Attention: Tiba Aynechi and
Junie Lim

		 	Email: [***]

 SIGNATURE PAGE TO 

AMENDED AND RESTATED INVESTORS’ RIGHTS AGREEMENT
OF 
 NKARTA, INC. 

 IN WITNESS WHEREOF, the parties have executed this Amended and Restated Investors’
Rights Agreement as of the date first written above. 
  

			
	INVESTORS:
	
	SR ONE, LIMITED
		
	By:	 	/s/ Karen Narolewski Engel
	Name:	 	Karen Narolewski Engel
	Title:	 	Vice President, Finance
		
	Address:	 	
		
	[***]	 	

 SIGNATURE PAGE TO 

AMENDED AND RESTATED INVESTORS’ RIGHTS AGREEMENT
OF 
 NKARTA, INC. 

 IN WITNESS WHEREOF, the parties have executed this Amended and Restated Investors’
Rights Agreement as of the date first written above. 
  

			
	INVESTORS:
	
	NEW ENTERPRISE ASSOCIATES 15, L.P.

 
			
		
	By:	 	/s/ Louis Citron

 
			
	Name:	 	Louis Citron
	Title:	 	Chief Legal Officer
	
	Address:
	
	 c/o New Enterprise Associates, Inc.

1954 Greenspring Drive, Suite 600
 Timonium, MD
21093

	
	NEA VENTURES 2016, L.P.

 
			
		
	By:	 	/s/ Louis Citron

 
			
	Name:	 	Louis Citron
	Title:	 	Chief Legal Officer
		
	Address:	 	
	
	 c/o New Enterprise Associates, Inc.

1954 Greenspring Drive, Suite 600
 Timonium, MD
21093

  
 SIGNATURE
PAGE TO 
 AMENDED AND RESTATED INVESTORS’
RIGHTS AGREEMENT OF 
 NKARTA, INC. 

 IN WITNESS WHEREOF, the parties have executed this Amended and Restated Investors’
Rights Agreement as of the date first written above. 
  

			
	INVESTORS:
	
	RA CAPITAL HEALTHCARE FUND, L.P.
	
	 By: RA Capital Management, LLC
 Its:
General Partner

		
	By:	 	/s/ Peter Kolchinsky
	Name: Peter Kolchinsky
	Title: Authorized Signatory

  

			
	Address:	 	 RA Capital Management, LLC
 200 Berkeley
Street
 18th Floor
 Boston, MA 02116

Attn: General Counsel

  

			
	RA CAPITAL NEXUS FUND, L.P.
	
	 By: RA Capital Nexus Fund GP, LLC

Its: General Partner

		
	By:	 	/s/ Peter Kolchinsky
	Name: Peter Kolchinsky
	Title: Manager

  

			
	Address:	 	 RA Capital Management, LLC
 200 Berkeley
Street
 18th Floor
 Boston, MA 02116

Attn: General Counsel

  
 SIGNATURE
PAGE TO 
 AMENDED AND RESTATED INVESTORS’
RIGHTS AGREEMENT OF 
 NKARTA, INC. 

 IN WITNESS WHEREOF, the parties have executed this Amended and Restated Investors’
Rights Agreement as of the date first written above. 
  

			
	INVESTORS:
	
	BLACKWELL PARTNERS LLC—SERIES A

 
			
		
	By:	 	/s/ Abayomi A. Adigun

 
			
	Name:	 	Abayomi A. Adigun
	Title:	 	Investment Manager
		 	DUMAC, Inc., Authorized Signatory

  

			
		
	By:	 	/s/ Jannine M. Lall

 
			
	Name:	 	Jannine M. Lall
	Title:	 	Head of Finance & Controller
		 	DUMAC, Inc., Authorized Signatory

  

			
	Address:	 	 Blackwell Partners LLC—Series A

[***]

  
 SIGNATURE
PAGE TO 
 AMENDED AND RESTATED INVESTORS’
RIGHTS AGREEMENT OF 
 NKARTA, INC. 

 IN WITNESS WHEREOF, the parties have executed this Amended and Restated Investors’
Rights Agreement as of the date first written above. 
  

					
		 	INVESTORS:
		
		 	AMGEN VENTURES LLC
			
	

	 	By:	 	/s/ David W. Meline
	 	Name: David W. Meline
	 	Title: EVP & Chief Financial Officer
	 	  
 Address:

		
		 	 Amgen Ventures LLC

[***]

		
		 	Copy to:
		 	 Amgen Inc.
 [***]

  
 SIGNATURE
PAGE TO 
 AMENDED AND RESTATED INVESTORS’
RIGHTS AGREEMENT OF 
 NKARTA, INC. 

 IN WITNESS WHEREOF, the parties have executed this Amended and Restated Investors’
Rights Agreement as of the date first written above. 
  

			
	INVESTORS:
	
	LSP 6 HOLDING C.V.
	By:	 	LSP 6 Management B.V.
	Its:	 	General Partner
		
	By:	 	/s/ Rene Kuijten
	Name:	 	Rene Kuijten
	Title:	 	Managing Director
		
	By:	 	/s/ Martijn Kleiwegt
	Name:	 	Martijn Kleiwegt
	Title:	 	Managing Director
	
	Address:
	
	 Johannes Vermeerplein 9
 1071 DV
Amsterdam, The Netherlands

  
 SIGNATURE
PAGE TO 
 AMENDED AND RESTATED INVESTORS’
RIGHTS AGREEMENT OF 
 NKARTA, INC. 

 IN WITNESS WHEREOF, the parties have executed this Amended and Restated Investors’
Rights Agreement as of the date first written above. 
  

			
	INVESTORS:
	
	EMERSON COLLECTIVE INVESTMENTS, LLC
		
	By:	 	/s/ Steve McDermid
	Name:	 	Steve McDermid
	Title:	 	Authorized Signatory
	
	Address:
	
	[***]

 SIGNATURE PAGE TO 

AMENDED AND RESTATED INVESTORS’ RIGHTS AGREEMENT
OF 
 NKARTA, INC. 

 IN WITNESS WHEREOF, the parties have executed this Amended and Restated Investors’
Rights Agreement as of the date first written above. 
  

			
	INVESTORS:
	
	DEERFIELD SPECIAL SITUATIONS FUND, L.P.
	By: Deerfield Mgmt, L.P.
	General Partner
	By: J.E. Flynn Capital, LLC
	General Partner
		
	By:	 	/s/ David J. Clark
	Name:	 	David J. Clark
	Title:	 	Authorized Signatory

  

			
	 DEERFIELD PRIVATE DESIGN FUND IV,

L.P. By: Deerfield Mgmt IV, L.P.
 General Partner

	 By: J.E. Flynn Capital IV, LLC

General Partner

		
	By:	 	/s/ David J. Clark
	Name:	 	David J. Clark
	Title:	 	Authorized Signatory
	
	Address:
	
	 780 Third Avenue
 37th Floor

New York. NY 10017

 SIGNATURE PAGE TO 

AMENDED AND RESTATED INVESTORS’ RIGHTS AGREEMENT
OF 
 NKARTA, INC. 

 IN WITNESS WHEREOF, the parties have executed this Amended and Restated Investors’
Rights Agreement as of the date first written above. 
  

			
	INVESTORS:
	
	LOGOS OPPORTUNITIES FUND I, L.P.
	 By: Logos Opportunities GP, LLC
 Its
General Partner

		
	By:	 	/s/ Graham Walmsley
	Name:	 	Graham Walmsley
	Title:	 	Manager
	
	Address:
	
	[***]

 SIGNATURE PAGE TO 

AMENDED AND RESTATED INVESTORS’ RIGHTS AGREEMENT
OF 
 NKARTA, INC. 

 IN WITNESS WHEREOF, the parties have executed this Amended and Restated Investors’
Rights Agreement as of the date first written above. 
  

			
	INVESTORS:
	
	JOHN NEHRA REVOCABLE TRUST
		
	    By:	 	/s/ John Nehra
	    Name:	 	John Nehra
	    Title:	 	
	
	    Address:
	
	    [***]

 SIGNATURE PAGE TO 

AMENDED AND RESTATED INVESTORS’ RIGHTS AGREEMENT
OF 
 NKARTA, INC. 

 IN WITNESS WHEREOF, the parties have executed this Amended and Restated Investors’
Rights Agreement as of the date first written above. 
  

			
	INVESTORS:
	
	WS INVESTMENT COMPANY, LLC (2015A)
		
	By:	 	/s/ Daniel R. Koeppen
	Name:	 	Daniel R. Koeppen
	Title:	 	Member

  

	
	Address:
	
	[***]

  

			
	WS INVESTMENT COMPANY, LLC (2019A)
		
	By:	 	/s/ Daniel R. Koeppen
	Name:	 	Daniel R. Koeppen
	Title:	 	Member

  

	
	Address:
	
	[***]

 SIGNATURE PAGE TO 

AMENDED AND RESTATED INVESTORS’ RIGHTS AGREEMENT
OF 
 NKARTA,INC. 

 Schedule A 

INVESTORS 
 [***]EX-10.2

 Exhibit 10.2 

NKARTA, INC. 
 2015
EQUITY INCENTIVE PLAN 
 1. Purposes of the Plan. The purposes of this Plan are: 

 

	 	•	 	 to attract and retain the best available personnel for positions of substantial responsibility,

  

	 	•	 	 to provide additional incentive to Employees, Directors and Consultants, and 

 

	 	•	 	 to promote the success of the Company’s business. 

The Plan permits the grant of Incentive Stock Options, Nonstatutory Stock Options, Stock Appreciation Rights, Restricted Stock and Restricted
Stock Units. 
 2. Definitions. As used herein, the following definitions will apply: 

(a) “Administrator” means the Board or any of its Committees as will be administering the Plan, in accordance with
Section 4 of the Plan. 
 (b) “Applicable Laws” means the requirements relating to the administration of equity-based
awards under U.S. state corporate laws, U.S. federal and state securities laws, the Code, any stock exchange or quotation system on which the Common Stock is listed or quoted and the applicable laws of any foreign country or jurisdiction where
Awards are, or will be, granted under the Plan. 
 (c) “Award” means, individually or collectively, a grant under the Plan
of Options, Stock Appreciation Rights, Restricted Stock, or Restricted Stock Units. 
 (d) “Award Agreement” means the
written or electronic agreement setting forth the terms and provisions applicable to each Award granted under the Plan. The Award Agreement is subject to the terms and conditions of the Plan. 

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

(f) “Change in Control” means the occurrence of any of the following events: 

(i) Change in Ownership of the Company. A change in the ownership of the Company which occurs on the date that any one person, or more
than one person acting as a group (“Person”), acquires ownership of the stock of the Company that, together with the stock held by such Person, constitutes more than 50% of the total voting power of the stock of the Company, except that
any change in the ownership of the stock of the Company as a result of a private financing of the Company that is approved by the Board will not be considered a Change in Control; or 

 (ii) Change in Effective Control of the Company. If the Company has a class of
securities registered pursuant to Section 12 of the Exchange Act, a change in the effective control of the Company which occurs on the date that a majority of members of the Board is replaced during any twelve (12) month period by
Directors whose appointment or election is not endorsed by a majority of the members of the Board prior to the date of the appointment or election. For purposes of this clause (ii), if any Person is considered to be in effective control of the
Company, the acquisition of additional control of the Company by the same Person will not be considered a Change in Control; or 
 (iii)
Change in Ownership of a Substantial Portion of the Company’s Assets. A change in the ownership of a substantial portion of the Company’s assets which occurs on the date that any Person acquires (or has acquired during the
twelve (12) month period ending on the date of the most recent acquisition by such person or persons) assets from the Company that have a total gross fair market value equal to or more than 50% of the total gross fair market value of all of the
assets of the Company immediately prior to such acquisition or acquisitions. For purposes of this subsection (iii), gross fair market value means the value of the assets of the Company, or the value of the assets being disposed of, determined
without regard to any liabilities associated with such assets. 
 For purposes of this Section 2(f), persons will be considered to be
acting as a group if they are owners of a corporation that enters into a merger, consolidation, purchase or acquisition of stock, or similar business transaction with the Company. 

Notwithstanding the foregoing, a transaction will not be deemed a Change in Control unless the transaction qualifies as a change in control
event within the meaning of Code Section 409A, as it has been and may be amended from time to time, and any proposed or final Treasury Regulations and Internal Revenue Service guidance that has been promulgated or may be promulgated thereunder
from time to time. 
 Further and for the avoidance of doubt, a transaction will not constitute a Change in Control if: (i) its sole
purpose is to change the jurisdiction of the Company’s incorporation, or (ii) its sole purpose is to create a holding company that will be owned in substantially the same proportions by the persons who held the Company’s securities
immediately before such transaction. 
 (g) “Code” means the Internal Revenue Code of 1986, as amended. Any reference to a
section of the Code herein will be a reference to any successor or amended section of the Code. 
 (h) “Committee” means a
committee of Directors or of other individuals satisfying Applicable Laws appointed by the Board, or by the compensation committee of the Board, in accordance with Section 4 hereof. 

(i) “Common Stock” means the common stock of the Company. 

(j) “Company” means Nkarta, Inc., a Delaware corporation, or any successor thereto. 

  
 -2- 

 (k) “Consultant” means any natural person, including an advisor, engaged by
the Company or a Parent or Subsidiary to render bona fide services to such entity, provided the services (i) are not in connection with the offer or sale of securities in a capital-raising transaction, and (ii) do not directly promote or
maintain a market for the Company’s securities. 
 (1) “Director” means a member of the Board. 

(m) “Disability” means total and permanent disability as defined in Code Section 22(e)(3), provided that in the case of
Awards other than Incentive Stock Options, the Administrator in its discretion may determine whether a permanent and total disability exists in accordance with uniform and non-discriminatory standards adopted
by the Administrator from time to time. 
 (n) “Employee” means any person, including officers and Directors, employed by
the Company or any Parent or Subsidiary of the Company. Neither service as a Director nor payment of a director’s fee by the Company will be sufficient to constitute “employment” by the Company. 

(o) “Exchange Act” means the Securities Exchange Act of 1934, as amended. 

(p) “Exchange Program” means a program under which (i) outstanding Awards are surrendered or cancelled in exchange for
Awards of the same type (which may have higher or lower exercise prices and different terms), Awards of a different type, and/or cash, (ii) Participants would have the opportunity to transfer any outstanding Awards to a financial institution or
other person or entity selected by the Administrator, and/or (iii) the exercise price of an outstanding Award is reduced or increased. The Administrator will determine the terms and conditions of any Exchange Program in its sole discretion.

 (q) “Fair Market Value” means, as of any date, the value of Common Stock determined as follows: 

(i) If the Common Stock is listed on any established stock exchange or a national market system, including without limitation the Nasdaq
Global Select Market, the Nasdaq Global Market or the Nasdaq Capital Market of The Nasdaq Stock Market, its Fair Market Value will be the closing sales price for such stock (or the closing bid, if no sales were reported) as quoted on such exchange
or system on the day of determination, as reported in The Wall Street Journal or such other source as the Administrator deems reliable; 

(ii) If the Common Stock is regularly quoted by a recognized securities dealer but selling prices are not reported, the Fair Market Value of
a Share will be the mean between the high bid and low asked prices for the Common Stock on the day of determination (or, if no bids and asks were reported on that date, as applicable, on the last trading date such bids and asks were reported), as
reported in The Wall Street Journal or such other source as the Administrator deems reliable; or 
 (iii) In the absence of an
established market for the Common Stock, the Fair Market Value will be determined in good faith by the Administrator. 

  
 -3- 

 (r) “Incentive Stock Option” means an Option that by its terms qualifies
and is otherwise intended to qualify as an incentive stock option within the meaning of Code Section 422 and the regulations promulgated thereunder. 

(s) “Nonstatutory Stock Option” means an Option that by its terms does not qualify or is not intended to qualify as an
Incentive Stock Option. 
 (t) “Option” means a stock option granted pursuant to the Plan. 

(u) “Parent” means a “parent corporation,” whether now or hereafter existing, as defined in Code
Section 424(e). 
 (v) “Participant” means the holder of an outstanding Award. 

(w) “Period of Restriction” means the period during which the transfer of Shares of Restricted Stock are subject to
restrictions and therefore, the Shares are subject to a substantial risk of forfeiture. Such restrictions may be based on the passage of time, the achievement of target levels of performance, or the occurrence of other events as determined by the
Administrator. 
 (x) “Plan” means this 2015 Equity Incentive Plan. 

(y) “Restricted Stock” means Shares issued pursuant to an Award of Restricted Stock under Section 8 of the Plan, or
issued pursuant to the early exercise of an Option. 
 (z) “Restricted Stock Unit” means a bookkeeping entry representing
an amount equal to the Fair Market Value of one Share, granted pursuant to Section 9. Each Restricted Stock Unit represents an unfunded and unsecured obligation of the Company. 

(aa) “Service Provider” means an Employee, Director or Consultant. 

(bb) “Share” means a share of the Common Stock, as adjusted in accordance with Section 13 of the Plan. 

(cc) “Stock Appreciation Right” means an Award, granted alone or in connection with an Option, that pursuant to
Section 7 is designated as a Stock Appreciation Right. 
 (dd) “Subsidiary” means a “subsidiary
corporation,” whether now or hereafter existing, as defined in Code Section 424(f). 
 3. Stock Subject to the Plan. 

(a) Stock Subject to the Plan. Subject to the provisions of Section 13 of the Plan, the maximum aggregate number of Shares that
may be subject to Awards and sold under the Plan is 2,000,000 Shares. The Shares may be authorized but unissued, or reacquired Common Stock. 

  
 -4- 

 (b) Lapsed Awards. If an Award expires or becomes unexercisable without having been
exercised in full, is surrendered pursuant to an Exchange Program, or, with respect to Restricted Stock or Restricted Stock Units, is forfeited to or repurchased by the Company due to the failure to vest, the unpurchased Shares (or for Awards other
than Options or Stock Appreciation Rights the forfeited or repurchased Shares) which were subject thereto will become available for future grant or sale under the Plan (unless the Plan has terminated). With respect to Stock Appreciation Rights, only
Shares actually issued pursuant to a Stock Appreciation Right will cease to be available under the Plan; all remaining Shares under Stock Appreciation Rights will remain available for future grant or sale under the Plan (unless the Plan has
terminated). Shares that have actually been issued under the Plan under any Award will not be returned to the Plan and will not become available for future distribution under the Plan; provided, however, that if Shares issued pursuant to Awards of
Restricted Stock or Restricted Stock Units are repurchased by the Company or are forfeited to the Company due to the failure to vest, such Shares will become available for future grant under the Plan. Shares used to pay the exercise price of an
Award or to satisfy the tax withholding obligations related to an Award will become available for future grant or sale under the Plan. To the extent an Award under the Plan is paid out in cash rather than Shares, such cash payment will not result in
reducing the number of Shares available for issuance under the Plan. Notwithstanding the foregoing and, subject to adjustment as provided in Section 13, the maximum number of Shares that may be issued upon the exercise of Incentive Stock
Options will equal the aggregate Share number stated in Section 3(a), plus, to the extent allowable under Code Section 422 and the Treasury Regulations promulgated thereunder, any Shares that become available for issuance under the Plan
pursuant to Section 3(b). 
 (c) Share Reserve. The Company, during the term of this Plan, will at all times reserve and keep
available such number of Shares as will be sufficient to satisfy the requirements of the Plan. 
 4. Administration of the Plan. 

(a) Procedure. 
 (i)
Multiple Administrative Bodies. Different Committees with respect to different groups of Service Providers may administer the Plan. 

(ii) Other Administration. Other than as provided above, the Plan will be administered by (A) the Board or (B) a Committee,
which Committee will be constituted to satisfy Applicable Laws. 
 (b) Powers of the Administrator. Subject to the provisions of the
Plan, and in the case of a Committee, subject to the specific duties delegated by the Board to such Committee, the Administrator will have the authority, in its discretion: 

(i) to determine the Fair Market Value; 

(ii) to select the Service Providers to whom Awards may be granted hereunder; 

(iii) to determine the number of Shares to be covered by each Award granted hereunder; 

(iv) to approve forms of Award Agreements for use under the Plan; 

  
 -5- 

 (v) to determine the terms and conditions, not inconsistent with the terms of the Plan, of
any Award granted hereunder. Such terms and conditions include, but are not limited to, the exercise price, the time or times when Awards may be exercised (which may be based on performance criteria), any vesting acceleration or waiver of forfeiture
restrictions, and any restriction or limitation regarding any Award or the Shares relating thereto, based in each case on such factors as the Administrator will determine; 

(vi) to institute and determine the terms and conditions of an Exchange Program; 

(vii) to construe and interpret the terms of the Plan and Awards granted pursuant to the Plan; 

(viii) to prescribe, amend and rescind rules and regulations relating to the Plan, including rules and regulations relating to sub-plans established for the purpose of satisfying applicable foreign laws or for qualifying for favorable tax treatment under applicable foreign laws; 

(ix) to modify or amend each Award (subject to Section 18(c) of the Plan), including but not limited to the discretionary authority to
extend the post-termination exercisability period of Awards and to extend the maximum term of an Option (subject to Section 6(d)); 

(x) to allow Participants to satisfy withholding tax obligations in a manner prescribed in Section 14; 

(xi) to authorize any person to execute on behalf of the Company any instrument required to effect the grant of an Award previously granted
by the Administrator; 
 (xii) to allow a Participant to defer the receipt of the payment of cash or the delivery of Shares that otherwise
would be due to such Participant under an Award; and 
 (xiii) to make all other determinations deemed necessary or advisable for
administering the Plan. 
 (c) Effect of Administrator’s Decision. The Administrator’s decisions, determinations and
interpretations will be final and binding on all Participants and any other holders of Awards. 
 5. Eligibility. Nonstatutory Stock
Options, Stock Appreciation Rights, Restricted Stock, and Restricted Stock Units may be granted to Service Providers. Incentive Stock Options may be granted only to Employees. 

6. Stock Options. 
 (a)
Grant of Options. Subject to the terms and provisions of the Plan, the Administrator, at any time and from time to time, may grant Options in such amounts as the Administrator, in its sole discretion, will determine. 

  
 -6- 

 (b) Option Agreement. Each Award of an Option will be evidenced by an Award Agreement
that will specify the exercise price, the term of the Option, the number of Shares subject to the Option, the exercise restrictions, if any, applicable to the Option, and such other terms and conditions as the Administrator, in its sole discretion,
will determine. 
 (c) Limitations. Each Option will be designated in the Award Agreement as either an Incentive Stock Option or a
Nonstatutory Stock Option. Notwithstanding such designation, however, to the extent that the aggregate Fair Market Value of the Shares with respect to which Incentive Stock Options are exercisable for the first time by the Participant during any
calendar year (under all plans of the Company and any Parent or Subsidiary) exceeds one hundred thousand dollars ($100,000), such Options will be treated as Nonstatutory Stock Options. For purposes of this Section 6(c), Incentive Stock Options
will be taken into account in the order in which they were granted, the Fair Market Value of the Shares will be determined as of the time the Option with respect to such Shares is granted, and calculation will be performed in accordance with Code
Section 422 and Treasury Regulations promulgated thereunder. 
 (d) Term of Option. The term of each Option will be stated in
the Award Agreement; provided, however, that the term will be no more than ten (10) years from the date of grant thereof. In the case of an Incentive Stock Option granted to a Participant who, at the time the Incentive Stock Option is granted,
owns stock representing more than ten percent (10%) of the total combined voting power of all classes of stock of the Company or any Parent or Subsidiary, the term of the Incentive Stock Option will be five (5) years from the date of grant or
such shorter term as may be provided in the Award Agreement. 
 (e) Option Exercise Price and Consideration. 

(i) Exercise Price. The per Share, exercise price for the Shares to be issued pursuant to the exercise of an Option will be determined
by the Administrator, but will be no less than one hundred percent (100%) of the Fair Market Value per Share on the date of grant. In addition, in the case of an Incentive Stock Option granted to an Employee who owns stock representing more than ten
percent (10%) of the voting power of all classes of stock of the Company or any Parent or Subsidiary, the per Share exercise price will be no less than one hundred ten percent (110%) of the Fair Market Value per Share on the date of grant.
Notwithstanding the foregoing provisions of this Section 6(e)(i), Options may be granted with a per Share exercise price of less than one hundred percent (100%) of the Fair Market Value per Share on the date of grant pursuant to a transaction
described in, and in a manner consistent with, Code Section 424(a). 
 (ii) Waiting Period and Exercise Dates. At the time an
Option is granted, the Administrator will fix the period within which the Option may be exercised and will determine any conditions that must be satisfied before the Option may be exercised. 

(iii) Form of Consideration. The Administrator will determine the acceptable form of consideration for exercising an Option, including
the method of payment. In the case of an Incentive Stock Option, the Administrator will determine the acceptable form of consideration at the time of grant. Such consideration may consist entirely of: (1) cash; (2) check; (3) promissory note,
to the extent permitted by Applicable Laws, (4) other Shares, provided that such Shares have a Fair Market Value on the date of surrender equal to the aggregate exercise price of the 

  
 -7- 

 Shares as to which such Option will be exercised and provided further that accepting such Shares will not
result in any adverse accounting consequences to the Company, as the Administrator determines in its sole discretion; (5) consideration received by the Company under cashless exercise program (whether through a broker or otherwise) implemented
by the Company in connection with the Plan; (6) by net exercise, (7) such other consideration and method of payment for the issuance of Shares to the extent permitted by Applicable Laws, or (8) any combination of the foregoing methods
of payment. In making its determination as to the type of consideration to accept, the Administrator will consider if acceptance of such consideration may be reasonably expected to benefit the Company. 

(f) Exercise of Option. 

(i) Procedure for Exercise; Rights as a Stockholder. Any Option granted hereunder will be exercisable according to the terms of the
Plan and at such times and under such conditions as determined by the Administrator and set forth in the Award Agreement. An Option may not be exercised for a fraction of a Share. 

An Option will be deemed exercised when the Company receives: (i) notice of exercise (in such form as the Administrator may specify from time
to time) from the person entitled to exercise the Option, and (ii) full payment for the Shares with respect to which the Option is exercised (together with applicable tax withholding). Full payment may consist of any consideration and method of
payment authorized by the Administrator and permitted by the Award Agreement and the Plan. Shares issued upon exercise of an Option will be issued in the name of the Participant or, if requested by the Participant, in the name of the Participant and
his or her spouse. Until the Shares are issued (as evidenced by the appropriate entry on the books of the Company or of a duly authorized transfer agent of the Company), no right to vote or receive dividends or any other rights as a stockholder will
exist with respect to the Shares subject to an Option, notwithstanding the exercise of the Option. The Company will issue (or cause to be issued) such Shares promptly after the Option is exercised. No adjustment will be made for a dividend or other
right for which the record date is prior to the date the Shares are issued, except as provided in Section 13 of the Plan. 

Exercising an Option in any manner will decrease the number of Shares thereafter available, both for purposes of the Plan and for sale under
the Option, by the number of Shares as to which the Option is exercised. 
 (ii) Termination of Relationship as a Service Provider.
If a Participant ceases to be a Service Provider, other than upon the Participant’s termination as the result of the Participant’s death or Disability, the Participant may exercise his or her Option within thirty (30) days of
termination, or such longer period of time as is specified in the Award Agreement (but in no event later than the expiration of the term of such Option as set forth in the Award Agreement) to the extent that the Option is vested on the date of
termination. Unless otherwise provided by the Administrator, if on the date of termination the Participant is not vested as to his or her entire Option, the Shares covered by the unvested portion of the Option will revert to the Plan. If after
termination the Participant does not exercise his or her Option within the time specified by the Administrator, the Option will terminate, and the Shares covered by such Option will revert to the Plan. 

  
 -8- 

 (iii) Disability of Participant. If a Participant ceases to be a Service Provider as
a result of the Participant’s Disability, the Participant may exercise his or her Option within six (6) months of termination, or such longer period of time as is specified in the Award Agreement (but in no event later than the expiration
of the term of such Option as set forth in the Award Agreement) to the extent the Option is vested on the date of termination. Unless otherwise provided by the Administrator, if on the date of termination the Participant is not vested as to his or
her entire Option, the Shares covered by the unvested portion of the Option will revert to the Plan. If after termination the Participant does not exercise his or her Option within the time specified herein, the Option will terminate, and the Shares
covered by such Option will revert to the Plan. 
 (iv) Death of Participant. If a Participant dies while a Service Provider, the
Option may be exercised within six (6) months following the Participant’s death, or within such longer period of time as is specified in the Award Agreement (but in no event later than the expiration of the term of such Option as set forth
in the Award Agreement) to the extent that the Option is vested on the date of death, by the Participant’s designated beneficiary, provided such beneficiary has been designated prior to the Participant’s death in a form acceptable to the
Administrator. If no such beneficiary has been designated by the Participant, then such Option may be exercised by the personal representative of the Participant’s estate or by the person(s) to whom the Option is transferred pursuant to the
Participant’s will or in accordance with the laws of descent and distribution. Unless otherwise provided by the Administrator, if at the time of death Participant is not vested as to his or her entire Option, the Shares covered by the unvested
portion of the Option will immediately revert to the Plan. If the Option is not so exercised within the time specified herein, the Option will terminate, and the Shares covered by such Option will revert to the Plan. 

7. Stock Appreciation Rights. 

(a) Grant of Stock Appreciation Rights. Subject to the terms and conditions of the Plan, a Stock Appreciation Right may be granted to
Service Providers at any time and from time to time as will be determined by the Administrator, in its sole discretion. 
 (b) Number of
Shares. The Administrator will have complete discretion to determine the number of Shares subject to any Award of Stock Appreciation Rights. 

(c) Exercise Price and Other Terms. The per Share exercise price for the Shares that will determine the amount of the payment to be
received upon exercise of a Stock Appreciation Right as set forth in Section 7(f) will be determined by the Administrator and will be no less than one hundred percent (100%) of the Fair Market Value per Share on the date of grant. Otherwise,
the Administrator, subject to the provisions of the Plan, will have complete discretion to determine the terms and conditions of Stock Appreciation Rights granted under the Plan. 

(d) Stock Appreciation Right Agreement. Each Stock Appreciation Right grant will be evidenced by an Award Agreement that will specify
the exercise price, the term of the Stock Appreciation Right, the conditions of exercise, and such other terms and conditions as the Administrator, in its sole discretion, will determine. 

(e) Expiration of Stock Appreciation Rights. A Stock Appreciation Right granted under the Plan will expire upon the date determined by
the Administrator, in its sole discretion, and set forth in the Award Agreement. Notwithstanding the foregoing, the rules of Section 6(d) relating to the maximum term and Section 6(f) relating to exercise also will apply to Stock
Appreciation Rights. 

  
 -9- 

 (f) Payment of Stock Appreciation Right Amount. Upon exercise of a Stock Appreciation
Right, a Participant will be entitled to receive payment from the Company in an amount determined by multiplying: 
 (i) The difference
between the Fair Market Value of a Share on the date of exercise over the exercise price; times 
 (ii) The number of Shares with respect
to which the Stock Appreciation Right is exercised. 
 At the discretion of the Administrator, the payment upon Stock Appreciation Right
exercise may be in cash, in Shares of equivalent value, or in some combination thereof. 
 8. Restricted Stock. 

(a) Grant of Restricted Stock. Subject to the terms and provisions of the Plan, the Administrator, at any time and from time to time,
may grant Shares of Restricted Stock to Service Providers in such amounts as the Administrator, in its sole discretion, will determine. 

(b) Restricted Stock Agreement. Each Award of Restricted Stock will be evidenced by an Award Agreement that will specify the Period of
Restriction, the number of Shares granted, and such other terms and conditions as the Administrator, in its sole discretion, will determine. Unless the Administrator determines otherwise, the Company as escrow agent will hold Shares of Restricted
Stock until the restrictions on such Shares have lapsed. 
 (c) Transferability. Except as provided in this Section 8 or as the
Administrator determines, Shares of Restricted Stock may not be sold, transferred, pledged, assigned, or otherwise alienated or hypothecated until the end of the applicable Period of Restriction. 

(d) Other Restrictions. The Administrator, in its sole discretion, may impose such other restrictions on Shares of Restricted Stock as
it may deem advisable or appropriate. 
 (e) Removal of Restrictions. Except as otherwise provided in this Section 8, Shares of
Restricted Stock covered by each Restricted Stock grant made under the Plan will be released from escrow as soon as practicable after the last day of the Period of Restriction or at such other time as the Administrator may determine. The
Administrator, in its discretion, may accelerate the time at which any restrictions will lapse or be removed. 
 (f) Voting Rights.
During the Period of Restriction, Service Providers holding Shares of Restricted Stock granted hereunder may exercise full voting rights with respect to those Shares, unless the Administrator determines otherwise. 

  
 -10- 

 (g) Dividends and Other Distributions. During the Period of Restriction, Service
Providers holding Shares of Restricted Stock will be entitled to receive all dividends and other distributions paid with respect to such Shares, unless the Administrator provides otherwise. If any such dividends or distributions are paid in Shares,
the Shares will be subject to the same restrictions on transferability and forfeitability as the Shares of Restricted Stock with respect to which they were paid. 

(h) Return of Restricted Stock to Company. On the date set forth in the Award Agreement, the Restricted Stock for which restrictions
have not lapsed will revert to the Company and again will become available for grant under the Plan. 
 9. Restricted Stock Units.

 (a) Grant. Restricted Stock Units may be granted at any time and from time to time as determined by the Administrator. After the
Administrator determines that it will grant Restricted Stock Units, it will advise the Participant in an Award Agreement of the terms, conditions, and restrictions related to the grant, including the number of Restricted Stock Units. 

(b) Vesting Criteria and Other Terms. The Administrator will set vesting criteria in its discretion, which, depending on the extent to
which the criteria are met, will determine the number of Restricted Stock Units that will be paid out to the Participant. The Administrator may set vesting criteria based upon the achievement of Company-wide, business unit, or individual goals
(including, but not limited to, continued employment or service), or any other basis determined by the Administrator in its discretion. 

(c) Earning Restricted Stock Units. Upon meeting the applicable vesting criteria, the Participant will be entitled to receive a payout
as determined by the Administrator. Notwithstanding the foregoing, at any time after the grant of Restricted Stock Units, the Administrator, in its sole discretion, may reduce or waive any vesting criteria that must be met to receive a payout. 

(d) Form and Timing of Payment. Payment of earned Restricted Stock Units will be made as soon as practicable after the date(s)
determined by the Administrator and set forth in the Award Agreement. The Administrator, in its sole discretion, may settle earned Restricted Stock Units in cash, Shares, or a combination of both. 

(e) Cancellation. On the date set forth in the Award Agreement, all unearned Restricted Stock Units will be forfeited to the Company.

 10. Compliance With Code Section 409A. Awards will be designed and operated in such a manner that they are either exempt from
the application of, or comply with, the requirements of Code Section 409A, except as otherwise determined in the sole discretion of the Administrator. The Plan and each Award Agreement under the Plan is intended to meet the requirements of Code
Section 409A and will be construed and interpreted in accordance with such intent, except as otherwise determined in the sole discretion of the Administrator. To the extent that an Award or payment, or the settlement or deferral thereof, is
subject to Code Section 409A the Award will be granted, paid, settled or deferred in a manner that will meet the requirements of Code Section 409A, such that the grant, payment, settlement or deferral will not be subject to the additional
tax or interest applicable under Code Section 409A. 

  
 -11- 

 11. Leaves of Absence/Transfer Between Locations. Unless the Administrator provides
otherwise, vesting of Awards granted hereunder will be suspended during any unpaid leave of absence. A Participant will not cease to be an Employee in the case of (i) any leave of absence approved by the Company or (ii) transfers between
locations of the Company or between the Company, its Parent, or any Subsidiary. For purposes of Incentive Stock Options, no such leave may exceed three (3) months, unless reemployment upon expiration of such leave is guaranteed by statute or
contract. If reemployment upon expiration of a leave of absence approved by the Company is not so guaranteed, then six (6) months following the first (1st) day of such leave, any Incentive
Stock Option held by the Participant will cease to be treated as an Incentive Stock Option and will be treated for tax purposes as a Nonstatutory Stock Option. 

12. Limited Transferability of Awards. 

(a) Unless determined otherwise by the Administrator, Awards may not be sold, pledged, assigned, hypothecated, or otherwise transferred in any
manner other than by will or by the laws of descent and distribution, and may be exercised, during the lifetime of the Participant, only by the Participant. If the Administrator makes an Award transferable, such Award may only be transferred
(i) by will, (ii) by the laws of descent and distribution, or (iii) as permitted by Rule 701 of the Securities Act of 1933, as amended (the “Securities Act”). 

(b) Further, until the Company becomes subject to the reporting requirements of Section 13 or 15(d) of the Exchange Act, or after the
Administrator determines that it is, will, or may no longer be relying upon the exemption from registration under the Exchange Act as set forth in Rule 12h-l(f) promulgated under the Exchange Act, an Option,
or prior to exercise, the Shares subject to the Option, may not be pledged, hypothecated or otherwise transferred or disposed of, in any manner, including by entering into any short position, any “put equivalent position” or any “call
equivalent position” (as defined in Rule 16a-l(h) and Rule 16a-l(b) of the Exchange Act, respectively), other than to (i) persons who are “family
members” (as defined in Rule 701(c)(3) of the Securities Act) through gifts or domestic relations orders, or (ii) to an executor or guardian of the Participant upon the death or disability of the Participant. Notwithstanding the foregoing
sentence, the Administrator, in its sole discretion, may determine to permit transfers to the Company or in connection with a Change in Control or other acquisition transactions involving the Company to the extent permitted by Rule 12h-l(f). 
 13. Adjustments; Dissolution or Liquidation; Merger or Change in Control. 

(a) Adjustments. In the event that any dividend or other distribution (whether in the form of cash, Shares, other securities, or other
property), recapitalization, stock split, reverse stock split, reorganization, merger, consolidation, split-up, spin-off, combination, repurchase, or exchange of Shares
or other securities of the Company, or other change in the corporate structure of the Company affecting the Shares occurs, the Administrator, in order to prevent diminution or enlargement of the benefits or potential benefits intended to be made
available under the Plan, will adjust the number and class of shares of stock that may be delivered under the Plan and/or the number, class, and price of shares of stock covered by each outstanding Award; provided, however, that the Administrator
will make such adjustments to an Award required by Section 25102(o) of the California Corporations Code to the extent the Company is relying upon the exemption afforded thereby with respect to the Award. 

  
 -12- 

 (b) Dissolution or Liquidation. In the event of the proposed dissolution or
liquidation of the Company, the Administrator will notify each Participant as soon as practicable prior to the effective date of such proposed transaction. To the extent it has not been previously exercised, an Award will terminate immediately prior
to the consummation of such proposed action. 
 (c) Merger or Change in Control. In the event of a merger of the Company with or into
another corporation or other entity or a Change in Control, each outstanding Award will be treated as the Administrator determines (subject to the provisions of the following paragraph) without a Participant’s consent, including, without
limitation, that (i) Awards will be assumed, or substantially equivalent Awards will be substituted, by the acquiring or succeeding corporation (or an affiliate thereof) with appropriate adjustments as to the number and kind of shares and
prices; (ii) upon written notice to a Participant, that the Participant’s Awards will terminate upon or immediately prior to the consummation of such merger or Change in Control; (iii) outstanding Awards will vest and become
exercisable, realizable, or payable, or restrictions applicable to an Award will lapse, in whole or in part prior to or upon consummation of such merger or Change in Control, and, to the extent the Administrator determines, terminate upon or
immediately prior to the effectiveness of such merger or Change in Control; (iv) (A) the termination of an Award in exchange for an amount of cash and/or property, if any, equal to the amount that would have been attained upon the exercise of
such Award or realization of the Participant’s rights as of the date of the occurrence of the transaction (and, for the avoidance of doubt, if as of the date of the occurrence of the transaction the Administrator determines in good faith that
no amount would have been attained upon the exercise of such Award or realization of the Participant’s rights, then such Award may be terminated by the Company without payment), or (B) the replacement of such Award with other rights or
property selected by the Administrator in its sole discretion; or (v) any combination of the foregoing. In taking any of the actions permitted under this subsection 13(c), the Administrator will not be obligated to treat all Awards, all Awards
held by a Participant, or all Awards of the same type, similarly. 
 In the event that the successor corporation does not assume or
substitute for the Award (or portion thereof), the Participant will fully vest in and have the right to exercise all of his or her outstanding Options and Stock Appreciation Rights, including Shares as to which such Awards would not otherwise be
vested or exercisable, all restrictions on Restricted Stock and Restricted Stock Units will lapse, and, with respect to Awards with performance-based vesting, all performance goals or other vesting criteria will be deemed achieved at one hundred
percent (100%) of target levels and all other terms and conditions met. In addition, if an Option or Stock Appreciation Right is not assumed or substituted in the event of a merger or Change in Control, the Administrator will notify the Participant
in writing or electronically that the Option or Stock Appreciation Right will be exercisable for a period of time determined by the Administrator in its sole discretion, and the Option or Stock Appreciation Right will terminate upon the expiration
of such period. 
 For the purposes of this subsection 13(c), an Award will be considered assumed if, following the merger or Change in
Control, the Award confers the right to purchase or receive, for each Share subject to the Award immediately prior to the merger or Change in Control, the consideration (whether stock, cash, or other securities or property) received in the merger or
Change in Control by holders of Common Stock for each Share held on the effective date of the transaction (and if holders were offered a choice of consideration, the type of consideration chosen by the

  
 -13- 

 holders of a majority of the outstanding Shares); provided, however, that if such consideration received in
the merger or Change in Control is not solely common stock of the successor corporation or its Parent, the Administrator may, with the consent of the successor corporation, provide for the consideration to be received upon the exercise of an Option
or Stock Appreciation Right or upon the payout of a Restricted Stock Unit, for each Share subject to such Award, to be solely common stock of the successor corporation or its Parent equal in fair market value to the per share consideration received
by holders of Common Stock in the merger or Change in Control. 
 Notwithstanding anything in this Section 13(c) to the contrary, an
Award that vests, is earned or paid-out upon the satisfaction of one or more performance goals will not be considered assumed if the Company or its successor modifies any of such performance goals without the
Participant’s consent; provided, however, a modification to such performance goals only to reflect the successor corporation’s post-Change in Control corporate structure will not be deemed to invalidate an otherwise valid Award assumption.

 Notwithstanding anything in this Section 13(c) to the contrary, if a payment under an Award Agreement is subject to Code
Section 409A and if the change in control definition contained in the Award Agreement does not comply with the definition of “change of control” for purposes of a distribution under Code Section 409A, then any payment of an
amount that is otherwise accelerated under this Section will be delayed until the earliest time that such payment would be permissible under Code Section 409A without triggering any penalties applicable under Code Section 409A. 

14. Tax Withholding. 

(a) Withholding Requirements. Prior to the _delivery of any Shares or cash pursuant to an Award (or exercise thereof), the Company will
have the power and the right to deduct or withhold, or require a Participant to remit to the Company, an amount sufficient to satisfy federal, state, local, foreign or other taxes (including the Participant’s FICA obligation) required to be
withheld with respect to such Award (or exercise thereof). 
 (b) Withholding Arrangements. The Administrator, in its sole discretion
and pursuant to such procedures as it may specify from time to time, may permit a Participant to satisfy such tax withholding obligation, in whole or in part by (without limitation) (i) paying cash, (ii) electing to have the Company withhold
otherwise deliverable Shares having a Fair Market Value equal to the minimum statutory amount required to be withheld, (iii) delivering to the Company already-owned Shares having a Fair Market Value equal to the statutory amount required to be
withheld, provided the delivery of such Shares will not result in any adverse accounting consequences, as the Administrator determines in its sole discretion, or (iv) selling a sufficient number of Shares otherwise deliverable to the
Participant through such means as·the Administrator may determine in its sole discretion (whether through a broker or otherwise) equal to the amount required to be withheld. The amount of the withholding requirement will be deemed to include
any amount which the Administrator agrees may be withheld at the time the election is made, not to exceed the amount determined by using the maximum federal, state or local marginal income tax rates applicable to the Participant with respect to the
Award on the date that the amount of tax to be withheld is to be determined. The Fair Market Value of the Shares to be withheld or delivered will be determined as of the date that the taxes are required to be withheld. 

  
 -14- 

 15. No Effect on Employment or Service. Neither the Plan nor any Award will confer
upon a Participant any right with respect to continuing the Participant’s relationship as a Service Provider with the Company, nor will they interfere in any way with the Participant’s right or the Company’s right to terminate such
relationship at any time, with or without cause, to the extent permitted by Applicable Laws. 
 16. Date of Grant. The date of grant
of an Award will be, for all purposes, the date on which the Administrator makes the determination granting such Award, or such other later date as is determined by the Administrator. Notice of the determination will be provided to each Participant
within a reasonable time after the date of such grant. 
 17. Term of Plan. Subject to Section 21 of the Plan, the Plan will
become effective upon its adoption by the Board. Unless sooner terminated under Section 18, it will continue in effect for a term of ten (10) years from the later of (a) the effective date of the Plan, or (b) the earlier of the
most recent Board or stockholder approval of an increase in the number of Shares reserved for issuance under the Plan. 
 18. Amendment
and Termination of the Plan. 
 (a) Amendment and Termination. The Board may at any time amend, alter, suspend or terminate the
Plan. 
 (b) Stockholder Approval. The Company will obtain stockholder approval of any Plan amendment to the extent necessary and
desirable to comply with Applicable Laws. 
 (c) Effect of Amendment or Termination. No amendment, alteration, suspension or
termination of the Plan will impair the rights of any Participant, unless mutually agreed otherwise between the Participant and the Administrator, which agreement must be in writing and signed by the Participant and the Company. Termination of the
Plan will not affect the Administrator’s ability to exercise the powers granted to it hereunder with respect to Awards granted under the Plan prior to the date of such termination. 

19. Conditions Upon Issuance of Shares. 

(a) Legal Compliance. Shares will not be issued pursuant to the exercise of an Award unless the exercise of such Award and the issuance
and delivery of such Shares will comply with Applicable Laws and will be further subject to the approval of counsel for the Company with respect to such compliance. 

(b) Investment Representations. As a condition to the exercise of an Award, the Company may require the person exercising such Award to
represent and warrant at the time of any such exercise that the Shares are being purchased only for investment and without any present intention to sell or distribute such Shares if, in the opinion of counsel for the Company, such a representation
is required. 
 20. Inability to Obtain Authority. The inability of the Company to obtain authority from any regulatory body having
jurisdiction, which authority is deemed by the Company’s counsel to be necessary to the lawful issuance and sale of any Shares hereunder, will relieve the Company of any liability in respect of the failure to issue or sell such Shares as to
which such requisite authority will not have been obtained. 

  
 -15- 

 21. Stockholder Approval. The Plan will be subject to approval by the stockholders of
the Company within twelve (12) months after the date the Plan is adopted by the Board. Such stockholder approval will be obtained in the manner and to the degree required under Applicable Laws. 

22. Information to Participants. Beginning on the earlier of (i) the date that the aggregate number of Participants under this
Plan is five hundred (500) or more and the Company is relying on the exemption provided by Rule 12h-l(f)(l) under the Exchange Act and (ii) the date that the Company is required to deliver
information to Participants pursuant to Rule 701 under the Securities Act, and until such time as the Company becomes subject to the reporting requirements of Section 13 or 15(d) of the Exchange Act, is no longer relying on the exemption
provided by Rule 12h-l(f)(l) under the Exchange Act or is no longer required to deliver information to Participants pursuant to Rule 701 under the Securities Act, the Company shall provide to each Participant
the information described in paragraphs (e)(3), (4), and (5) of Rule 701 under the Securities Act not less frequently than every six (6) months with the financial statements being not more than 180 days old and with such information
provided either by physical or electronic delivery to the Participants or by written notice to the Participants of the availability of the information on an Internet site that may be password-protected and of any password needed to access the
information. The Company may request that Participants agree to keep the information to be provided pursuant to this section confidential. If a Participant does not agree to keep the information to be provided pursuant to this section confidential,
then the Company will not be required to provide the information unless otherwise required pursuant to Rule 12h-l(f)(l) under the Exchange Act or Rule 701 of the Securities Act. 

  
 -16-

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