EX-4.2





 Exhibit 4.2 

AMENDED AND RESTATED 

INVESTORS’ RIGHTS AGREEMENT 

THIS AMENDED AND RESTATED INVESTORS’ RIGHTS AGREEMENT (this “Agreement”), is made as of August 13, 2021, by
and among Vigil Neuroscience, Inc., a Delaware corporation (the “Company”), and each of the investors listed on Schedule A hereto and any subsequent purchasers of Series B Preferred Stock who become parties hereto as
“Investors” pursuant to Section 6.9 below, each of which is referred to in this Agreement as an “Investor”. 

RECITALS: 
 A.
Certain of the Investors (the “Existing Investors”) hold shares of Series A Preferred Stock and/or shares of Common Stock (as such terms are defined below) issued upon conversion thereof and possess registration rights,
information rights, rights of first offer, and other rights pursuant to that certain Investors’ Rights Agreement dated as of September 18, 2020, by and among the Company and such Existing Investors (the “Prior Agreement”).

 B. The Existing Investors and the Company desire to induce certain of the Investors to purchase shares of Series B Preferred Stock
of the Company, par value $0.0001 per share (“Series B Preferred Stock”), pursuant to that certain Series B Preferred Stock Purchase Agreement, dated as of the date hereof, by and among the Company and such Investors (the
“Purchase Agreement”) by amending and restating the Prior Agreement in its entirety to provide the Investors with the rights and privileges as set forth herein. 

The Company, the Investors, including the Existing Investors, each hereby agrees that the Prior Agreement is hereby amended and restated in
its entirety by this Agreement, and the parties hereto further agree as follows 
 1. Definitions. For purposes of this Agreement:

 1.1 “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 other investment fund or
registered investment company now or hereafter existing that is controlled by one or more general partners, managing members or investment advisers of, or shares the same management company or investment adviser with, such Person. 

1.2 “Alexandria” means Alexandria Venture Investments, LLC. 

1.3 “Atlas” means Atlas Venture Fund XII, L.P. 

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

1.5 “Certificate of Incorporation” means the Company’s Second Amended and Restated Certificate of Incorporation,
as amended and/or restated from time to time. 
 1.6 “Common Stock” means shares of the Company’s common stock,
par value $0.0001 per share. 

  
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 1.7 “Competitor” means a Person (including through any partnership,
limited liability company, corporation, joint venture or similar arrangement (whether now existing or formed hereafter)) engaged, directly or indirectly, in any business that is, directly or indirectly, engaged in the development, marketing,
distribution, licensing, sale or provision of any products or services that are competitive with any products or services developed, marketed, distributed, licensed, sold or provided by the Company and/or its subsidiaries, but shall not include any
venture capital fund or other investment fund or financial investment firm 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; provided, however, that in no event will any Investor be deemed to be a Competitor by virtue of its status as a venture capital fund or other investment fund or
financial investment firm. 
 1.8 “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. 

1.9 “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. 
 1.10 “Exchange Act” means the
Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder. 
 1.11 “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. 

1.12 “FOIA Party” means a Person that, in the reasonable determination of the Board of Directors, may be subject to,
and thereby required to disclose non-public information furnished by or relating to the Company under, the Freedom of Information Act, 5 U.S.C. 552 (“FOIA”), any state public records access
law, any state or other jurisdiction’s laws similar in intent or effect to FOIA, or any other similar statutory or regulatory requirement. 

1.13 “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. 
 1.14 “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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 1.15 “GAAP” means generally accepted accounting principles in the
United States as in effect from time to time. 
 1.16 “Hatteras” means Hatteras Venture Partners VI, LP. 

1.17 “Holder” means any holder of Registrable Securities who is a party to this Agreement. 

1.18 “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. 

1.19 “Initiating Holders” means, collectively, Holders who properly initiate a registration request under this
Agreement. 
 1.20 “IPO” means the Company’s first underwritten public offering of its Common Stock under the
Securities Act. 
 1.21 “Key Employee” means any executive-level employee (including division director and vice
president-level positions) as well as any employee or consultant who either alone or in concert with others develops, invents, programs or designs any Company Intellectual Property (as defined in the Purchase Agreement). 

1.22 “Lightstone” means Lightstone Ventures III, L.P. 

1.23 “Major Investor” means any Investor that, individually or together with such Investor’s Affiliates, holds at
least 1,500,000 shares of Registrable Securities or at least 200,000 shares of Series B Preferred Stock, in each case,as adjusted for any stock split, stock dividend, combination, or other recapitalization or reclassification effected after the date
hereof, and each Person to whom any of the rights of any such Investor are assigned pursuant to Section 6.1. 
 1.24 “New
Securities” means, collectively, equity securities of the Company, whether or not currently authorized, as well as rights, options, or warrants to purchase or acquire such equity securities, or securities of any type whatsoever that are, or
may become, convertible or exchangeable into or exercisable for such equity securities. 
 1.25 “Northpond” means
Northpond Ventures LP. 
 1.26 “Person” means any individual, corporation, partnership, trust, limited liability
company, association or other entity. 
 1.27 “Preferred Directors” means the Series A Directors and the Series B
Director collectively. 
 1.28 “Preferred Stock” means, collectively, shares of Series A Preferred Stock and Series B
Preferred Stock. 

  
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 1.29 “Registrable Securities” means (i) the Common Stock
issuable or issued upon conversion of the Preferred Stock; (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, held by the Investors on
the date of this Agreement, or 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 clause (i) 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. 

1.30 “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. 

1.31 “Restricted Securities” means the securities of the Company required to be notated with the legend set forth in
Section 2.12(b) hereof. 
 1.32 “SEC” means the Securities and Exchange Commission. 

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

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

1.35 “Securities Act” means the Securities Act of 1933, as amended, and the rules and regulations promulgated
thereunder. 
 1.36 “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. 

1.37 “Series A Director” means any director of the Company that the holders of record of the Series A Preferred Stock
are entitled to elect, exclusively and as a separate class, pursuant to the Certificate of Incorporation. 
 1.38 “Series B
Director” means any director of the Company that the holders of record of the Series B Preferred Stock are entitled to elect, exclusively and as a separate class, pursuant to the Certificate of Incorporation. 

1.39 “Series A Preferred Stock” means shares of the Company’s Series A Preferred Stock, par value $0.0001 per
share. 
 1.40 “Surveyor” means Citadel Multi-Strategy Equities Master Fund Ltd. and its Affiliates. 

1.41 “Vida” means Vida Ventures, LLC and its Affiliates. 

  
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 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 years after the date of
this Agreement or (ii) 180 days after the effective date of the registration statement for the IPO, the Company receives a request from Holders of majority of the Registrable Securities then outstanding that the Company file a Form S-1 registration statement with respect to at least 40% of the Registrable Securities then outstanding covering the registration of Registrable Securities with an anticipated aggregate offering price, net of Selling
Expenses, of at least $10 million, then the Company shall (x) within 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 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 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 at least 20% 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 offering price, net of
Selling Expenses, of at least $3 million, then the Company shall (i) within 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 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 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 120 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 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 120 day period other than an Excluded Registration. 

(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 60 days before the Company’s good faith estimate of the date of filing of, and ending on a date that is 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 30 days before the 

  
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Company’s good faith estimate of the date of filing of, and ending on a date that is 90 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 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 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
representatives, warranties or indemnities except as they relate to 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 several and not joint, and 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 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; and provided, further any shares of Common Stock outstanding on the date of this


  
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Agreement that constitute Registrable Securities, excluding any Registrable Securities held by Investors, shall be entirely excluded from the offering before any other Registrable Securities are
excluded from such offering. 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 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 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 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, (ii) the number of Registrable Securities included in the offering be reduced below 20% 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, or (iii) notwithstanding (ii) above, any shares of Common Stock outstanding on the date of this Agreement that constitute Registrable Securities, excluding any Registrable Securities held by Investors, shall be entirely excluded
from the offering before any other Registrable Securities are excluded from 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 100% of the total number of Registrable Securities that
Holders have requested to be included in such registration statement are actually included. 
 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 120
days or, if earlier, until the distribution contemplated in the registration statement has been completed; provided, however, that such 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; 

  
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 (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; 
 (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. 

  
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 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 10b5-1 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
$50,000, of one counsel for the selling Holders selected by Holders of a majority of the Registrable Securities to be registered (“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; 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 be 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 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 except to the extent such information has been corrected in a subsequent writing prior to or concurrently with the sale of Registrable Securities to the Person asserting
the claim. 

  
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 (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 has not been corrected in a subsequent writing prior to or concurrently with the sale of Registrable Securities to the Person asserting the claim; 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 Section 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 within a reasonable time of the commencement of any such action shall relieve such indemnifying party of any liability to the indemnified party under this Section 2.8, to the extent that such failure
materially prejudices the indemnifying party’s ability to defend 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) Unless agreed by the Holders of at least a majority of the Registerable
Securities then outstanding, the obligations of the Company and Holders under this Section 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 or any provision(s) 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 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); and (ii) 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). 

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 a majority of the Registrable Securities then outstanding, enter into any agreement with any holder or prospective holder of any securities of the Company that would (i) 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 

  
 11. 













 
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) allow such holder or prospective holder to include such securities in any registration unless, under the terms of such agreement, such holder or prospective holder may include such securities in any such registration only to the extent
that the inclusion of such securities will not reduce the number of the Registrable Securities of the Holders that are included; provided that this limitation shall not apply to Registrable Securities acquired by any additional Investor that
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 IPO and ending on the date specified by the Company and the managing underwriter (such period not to exceed 180 days in the case of the IPO), (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 apply only to the IPO, and shall not apply to (a) the sale of any shares of Common Stock (x) purchased by the Holder in connection with the IPO, whether or not pursuant to an underwriting agreement, a private
placement that is concurrent with the IPO, or otherwise, or (y) acquired in the open market at any time on or after the IPO; (b) the sale of any shares to an underwriter pursuant to an underwriting agreement, (c) transactions
(including, without limitation, any swap, hedge or similar agreement or arrangement) or announcements, in each case, relating to securities acquired in the IPO or securities acquired in open market or other transactions from and after the IPO or
that otherwise do not involve or relate to securities of the Company owned by a Holder prior to the IPO, or (d) the transfer of any shares to any trust for the direct or indirect benefit of the Holder or the 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 shall be applicable to the
Holders only if all officers and directors are subject to the same restrictions and the Company uses commercially reasonable efforts to obtain a similar agreement from all stockholders individually (and together with their affiliated funds) owning
1% or more of the Company’s outstanding Common Stock (after giving effect to conversion into Common Stock of all outstanding Preferred Stock). 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. Any discretionary waiver or termination of the restrictions of any or all of such agreements by the Company or
the underwriters shall apply pro rata to all Company stockholders that are subject to such agreements, based on the number of shares subject to such agreements. 

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. Notwithstanding the foregoing, the Company shall not require any transferee of shares pursuant to an effective registration statement or, following the IPO, SEC Rule 144, in each case,
to be bound by the terms of this Agreement. 

  
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 (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, recapitalization, merger, consolidation, or similar
event, 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, AS AMENDED.
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 or following the IPO, the transfer is made pursuant to SEC Rule 144, the Holder thereof shall give notice to the Company of such Holder’s intention to effect such sale,
pledge, or transfer, provided that no such notice shall be required in connection if the intended sale, pledge or transfer complies with SEC Rule 144. 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;
(y) in any transaction in which such Holder distributes Restricted Securities to an Affiliate of such Holder for no consideration; or (z) in any internal transaction in which such Holder transfers Restricted Securities to an Affiliate of such
Holder that is an entity and that is ultimately controlled by the same parent company as the Holder (or is the ultimate parent company of the Holder); provided that, in the case of clauses (y) and (z) each transferee agrees in writing to be
subject to the terms of this Section 2.12. Notwithstanding the foregoing, the Company shall be obligated to reissue promptly unlegended certificates or book entries at the request of any Holder thereof if the Company has completed its IPO and
the Holder shall have obtained an opinion of counsel (which counsel may be counsel to the Company) to the effect that the securities proposed to be disposed of may 

  
 13. 













 
lawfully be so disposed of without registration, qualification and legend, provided that the second legend listed above shall be removed only at such time as the Holder of such certificate is no
longer subject to any restrictions hereunder. 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. 
 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 Certificate of Incorporation; 

(b) such time after consummation of the IPO as Rule 144 or another similar exemption under the Securities Act is available for the sale
of all of such Holder’s shares without limitation during a three-month period without registration (and without the requirement for the Company to be in compliance with the current public information required under subsection (c)(1) of SEC
Rules 144) and such Holder (together with its “affiliates”) determined under SEC Rule 144 holds less than one percent (1%) of the outstanding capital stock of the Company; and 

(c) the fifth anniversary of the IPO. 

3. Information and Observer 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 of the Company: 
 (a) as soon as practicable, but in any event
within 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 regionally recognized standing selected by the Company; 

(b) as soon as practicable, but in any event within 45 days after the end of each of the first three 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 forty-five (45) days after the end of each quarter of each fiscal year of the
Company, a statement showing the number of shares of each class and series of capital stock and securities convertible into or exercisable for shares of capital stock outstanding at the end of the period, the Common Stock issuable upon conversion or
exercise of any outstanding securities convertible or exercisable for Common Stock and the exchange ratio or exercise price applicable thereto, and the number of shares of issued stock options and stock options not yet issued but reserved for
issuance, if any, all in sufficient detail as to permit the Major Investors to calculate their respective percentage equity ownership in the Company, and certified by the chief financial officer or chief executive officer of the Company as being
true, complete, and correct; 

  
 14. 













 (d) as soon as practicable, but in any event 30 days after the end of each fiscal
year, a budget and business plan for the current fiscal year, prepared on a quarterly 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 (such budget and business plan to be approved by the Board of Directors (including the vote of at least three (3) of four (4) Preferred Directors (the “Requisite Preferred Directors”))); 

(e) with respect to the financial statements called for in Section 3.1(a), and Section 3.1(b), 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(b)) and fairly present the financial condition of the Company and its results of operation for the periods specified therein; and 

(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 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 60 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 of the Company, at such Major Investor’s expense, to visit and inspect the Company’s properties at mutually convenient times and with
sufficient prior written notice to the Company of such planned visit, which notice shall be at least 45 days prior to such planned visit; 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. 

  
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 3.3 Observer Rights. 

(a) As long as Atlas owns not less than 25% of the shares of the Preferred Stock owned by it on or after the date hereof, including
shares of Series B Preferred Stock it is purchasing under the Purchase Agreement (or an equivalent amount of Common Stock issued upon conversion thereof), the Company shall invite a representative of Atlas to attend all meetings of the Board of
Directors (and any committee thereof) in a nonvoting observer capacity and, in this respect, shall give such representative copies of all notices, minutes, consents, and other materials that it provides to its directors at the same time and in the
same manner as provided to such directors; provided, however, that such representative shall agree to hold in confidence all information so provided; and provided further, that the Company reserves the right to withhold any
information and to exclude such representative from any meeting or portion thereof if access to such information or attendance at such meeting could adversely affect the attorney-client privilege between the Company and its counsel or result in
disclosure of trade secrets or a conflict of interest. The Company shall reimburse the Atlas representative for all reasonable out-of-pocket travel expenses incurred
(consistent with the Company’s travel policy) in connection with attending meetings of the Board of Directors. 
 (b) As long as
Northpond owns not less than 25% of the shares of the Preferred Stock owned by it on or after the date hereof, including shares of Series B Preferred Stock it is purchasing under the Purchase Agreement (or an equivalent amount of Common Stock issued
upon conversion thereof), the Company shall invite a representative of Northpond to attend all meetings of the Board of Directors (and any committee thereof) in a nonvoting observer capacity and, in this respect, shall give such representative
copies of all notices, minutes, consents, and other materials that it provides to its directors at the same time and in the same manner as provided to such directors; provided, however, that such representative shall agree to hold in
confidence all information so provided; and provided further, that the Company reserves the right to withhold any information and to exclude such representative from any meeting or portion thereof if access to such information or attendance
at such meeting could adversely affect the attorney-client privilege between the Company and its counsel or result in disclosure of trade secrets or a conflict of interest. The Company shall reimburse the Northpond representative for all reasonable out-of-pocket travel expenses incurred (consistent with the Company’s travel policy) in connection with attending meetings of the Board of Directors. 

(c) As long as Hatteras owns not less than 25% of the shares of the Preferred Stock owned by it on or after the date hereof, including
shares of Series B Preferred Stock it is purchasing under the Purchase Agreement (or an equivalent amount of Common Stock issued upon conversion thereof), the Company shall invite a representative of Hatteras to attend all meetings of the Board of
Directors (and any committee thereof) in a nonvoting observer capacity and, in this respect, shall give such representative copies of all notices, minutes, consents, and other materials that it provides to its directors at the same time and in the
same manner as provided to such directors; provided, however, that such representative shall agree to hold in confidence all information so provided; and provided further, that the Company reserves the right to withhold any
information and to exclude such representative from any meeting or portion thereof if access to such information or attendance at such meeting could adversely affect the attorney-client privilege between the Company and its counsel or result in
disclosure of trade secrets or a conflict of interest. The Company shall reimburse the Hatteras representative for all reasonable out-of-pocket travel expenses incurred
(consistent with the Company’s travel policy) in connection with attending meetings of the Board of Directors. 
 (d) As long as
Vida owns not less than 25% of the shares of the Preferred Stock owned by it on or after the date hereof, including shares of Series B Preferred Stock it is purchasing under the Purchase Agreement (or an equivalent amount of Common Stock issued upon
conversion thereof), the Company shall invite a representative of Vida to attend all meetings of the Board of Directors (and any committee thereof) in a nonvoting observer capacity and, in this respect, shall give such representative copies of all
notices, minutes, consents, and other materials that it provides to its directors at 

  
 16. 













 
the same time and in the same manner as provided to such directors; provided, however, that such representative shall agree to hold in confidence all information so provided; and
provided further, that the Company reserves the right to withhold any information and to exclude such representative from any meeting or portion thereof if access to such information or attendance at such meeting could adversely affect the
attorney-client privilege between the Company and its counsel or result in disclosure of trade secrets or a conflict of interest. The Company shall reimburse the Vida representative for all reasonable out-of-pocket travel expenses incurred (consistent with the Company’s travel policy) in connection with attending meetings of the Board of Directors. 

(e) As long as Lightstone owns not less than 25% of the shares of the Preferred Stock owned by it on or after the date hereof,
including shares of Series B Preferred Stock it is purchasing under the Purchase Agreement (or an equivalent amount of Common Stock issued upon conversion thereof), the Company shall invite a representative of Lightstone, initially Christina
Isacson, to attend all meetings of the Board of Directors (and any committee thereof) in a nonvoting observer capacity and, in this respect, shall give such representative copies of all notices, minutes, consents, and other materials that it
provides to its directors at the same time and in the same manner as provided to such directors; provided, however, that such representative shall agree to hold in confidence all information so provided; and provided further,
that the Company reserves the right to withhold any information and to exclude such representative from any meeting or portion thereof if access to such information or attendance at such meeting could adversely affect the attorney-client privilege
between the Company and its counsel or result in disclosure of trade secrets or a conflict of interest. The Company shall reimburse the Lightstone representative for all reasonable
out-of-pocket travel expenses incurred (consistent with the Company’s travel policy) in connection with attending meetings of the Board of Directors. 

(f) As long as Surveyor owns not less than 25% of the shares of the Preferred Stock owned by it on or after the date hereof, including
shares of Series B Preferred Stock it is purchasing under the Purchase Agreement (or an equivalent amount of Common Stock issued upon conversion thereof), the Company shall invite a representative of Surveyor, initially Isai Peimer, to attend all
meetings of the Board of Directors (and any committee thereof) in a nonvoting observer capacity and, in this respect, shall give such representative copies of all notices, minutes, consents, and other materials that it provides to its directors at
the same time and in the same manner as provided to such directors; provided, however, that such representative shall agree to hold in confidence all information so provided; and provided further, that the Company reserves the
right to withhold any information and to exclude such representative from any meeting or portion thereof if access to such information or attendance at such meeting could adversely affect the attorney-client privilege between the Company and its
counsel or result in disclosure of trade secrets or a conflict of interest. The Company shall reimburse the Surveyor representative for all reasonable out-of-pocket
travel expenses incurred (consistent with the Company’s travel policy) in connection with attending meetings of the Board of Directors. 

3.4 Termination of Information and Observer Rights. The covenants set forth in Sections 3.1, 3.2, and 3.3 shall terminate and be of no
further force or effect immediately prior to (i) 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) the closing
of a Deemed Liquidation Event, as such term is defined in the Certificate of Incorporation, whichever event occurs first; provided, that, with respect to clause (iii), the covenants set forth in this Section 3.1 shall only terminate if the
consideration received by the Investors in such Deemed Liquidation Event is in the form of cash and/or publicly traded securities. or if the Investors receive financial information from the acquiring company or other successor to the Company
comparable to those set forth in Section 3.1. 

  
 17. 













 3.5 Confidentiality. Each Investor agrees that such Investor will keep confidential
and will not disclose, divulge, or use for any purpose (other than to monitor or make decisions with respect to its investment in the Company) any confidential information obtained from the Company pursuant to the terms of this Agreement (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 3.5 by such
Investor), (b) is or has been independently developed or conceived by such Investor without use of the Company’s confidential information, or (c) is or has been made known or disclosed to such 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 reasonably 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 3.5, provided that the Board of Directors has not reasonably determined that such prospective purchaser is a Competitor of the Company; (iii) to any existing or prospective Affiliate, partner,
member, stockholder, or wholly owned subsidiary of such Investor in the ordinary course of business, provided that such Investor informs such Person that such information is confidential and directs such Person to maintain the confidentiality
of such information; (iv) to the extent required in connection with any routine or periodic examination or similar process by any regulatory or self-regulatory body or authority not specifically directed at the Company or the confidential
information obtained from the Company pursuant to the terms of the Agreement, including, without limitation, quarterly or annual reports, or (v) as may otherwise be required by law, regulation, rule, court order or subpoena, provided
that, with respect to this clause (v), such Investor promptly notifies the Company of such disclosure and takes reasonable steps to minimize the extent of any such required disclosure. 

3.6 Material Non-Public Information. The Company understands and acknowledges that in the
regular course of Surveyor’s businesses, Surveyor and its Affiliates will invest in companies that have issued securities that are publicly traded (each, a “Public Company”). Accordingly, the Company covenants and agrees that before
providing any material non-public information about a Public Company (“Public Company Information”) to Surveyor or its representatives (or any of their respective Affiliates), the Company shall
provide written notice of such Public Company Information to Surveyor’s compliance officer at SCComplianceAppvl@citadel.com describing such Public Company Information in reasonable detail. The Company shall not disclose Public Company
Information to Surveyor or its representatives (or any of their respective Affiliates) without prior written authorization from Surveyor’s compliance officer listed above. In addition, the Company acknowledges and agrees that in no event shall
Surveyor’s confidentiality and non-use obligations hereunder in any manner be deemed or construed as limiting Surveyor or its representatives (or any of their respective Affiliates) ability to trade any
security of a Public Company or any other Person. 
 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 benefit interest holders, such as limited partners, members or any other Person having a “beneficial ownership,” such as 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 of
the Company or a FOIA Party, unless such party’s purchase of New Securities is otherwise consented to by the Board of Directors, (y) agrees to enter into this Agreement and each of the Amended and Restated Voting Agreement and the Amended
and Restated Right of First Refusal and Co-Sale Agreement of even date herewith among the Company, the Major Investors and the other parties named therein, as an “Investor” under each such
agreement (provided that any Competitor or FOIA Party shall not be entitled to any rights as a Major Investor under Sections 3.1, 3.2 and 4.1 hereof), and (z) agrees to purchase at least such number of New Securities as are allocable
hereunder to the Major Investor holding the fewest number of Preferred Stock and any other Derivative Securities. 

  
 18. 













 (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 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 portion 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 Company then outstanding (assuming
full conversion and/or exercise, as applicable, of all Preferred Stock and any other Derivative Securities then outstanding and including any shares of Common Stock reserved for issuance under the Company’s equity incentive plans or similar
arrangements). At the expiration of such 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 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 which is equal to the proportion that the Common Stock issued and held, or
issuable (directly or indirectly) upon conversion and/or exercise, as applicable, of Preferred Stock and any other Derivative Securities then held, by such Fully Exercising Investor bears to the Common Stock issued and held, or issuable (directly or
indirectly) upon conversion and/or exercise, as applicable, of the Preferred Stock and any other Derivative Securities then held, by all Fully Exercising Investors who wish to purchase such unsubscribed shares. The closing of any sale pursuant to
this Section 4.1(b) shall occur within the later of 90 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 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 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
Certificate of Incorporation); (ii) shares of Common Stock issued in the IPO; and (iii) the issuance of shares of Preferred Stock pursuant 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 Certificate of Incorporation, whichever event occurs first. 

  
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 5. Additional Covenants. 

5.1 Insurance. The Company will obtain within 90 days of Closing, from financially sound and reputable insurers, Directors and Officers
liability insurance and term “key-person” insurance on Ivana Magovcevic-Liebisch, each in an amount and on terms and conditions satisfactory to the Board of Directors, including the Requisite
Preferred Directors, and will use commercially reasonable efforts to cause such insurance policies to be maintained until such time as the Board of Directors, including the Requisite Preferred Directors then serving, determines that such insurance
should be discontinued. The key-person policy shall name the Company as loss payee, and neither policy shall be cancelable by the Company without prior approval by the Board of Directors, including the
Requisite Preferred Directors. Notwithstanding any other provision of this Section 5.1 to the contrary, for so long as Preferred Directors are then serving on the Board of Directors, the Company shall not cease to maintain a Directors and
Officers liability insurance policy in an amount of at least $3,000,000 unless approved by the Requisite Preferred Directors then serving, and the Company shall annually, upon request, deliver to the Investors a certification that such a Directors
and Officers liability insurance policy remains in effect. 
 5.2 Employee Agreements. Unless otherwise approved by the Board of
Directors, including the Requisite Preferred Directors, the Company will cause (i) 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; and (ii) each Key Employee to enter into a one year non-competition and non-solicitation agreement, in a form acceptable to the Board of Directors, including the Requisite Preferred Directors. 

5.3 Employee Stock. Unless otherwise approved by the Board of Directors, including the Requisite Preferred 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 year period, with the first 25% of such shares vesting following 12 months of continued employment or service, and the remaining shares vesting in equal monthly installments over the
following 36 months, and (ii) a market stand-off provision substantially similar to that in Section 2.11. Without the prior approval by the Board of Directors, including the Requisite Preferred
Director the Company shall not amend, modify, terminate, waive or otherwise alter, in whole or in part, any stock purchase, stock restriction or option agreement with any existing employee or service provider if such amendment would cause it to be
inconsistent with this Section 5.3. In addition, unless otherwise approved by the Board of Directors, including the Requisite Preferred Directors, the Company shall retain (and not waive) a “right of first refusal” on employee
transfers until the IPO and shall have the right to repurchase unvested shares at cost upon termination of employment of a holder of restricted stock. 

5.4 Reserved. 
 5.5
Board Matters. Unless otherwise determined by the vote of a majority of the directors then in office (including the Requisite Preferred Directors), the Board of Directors shall meet at least quarterly in accordance with an agreed- upon schedule.
The Company shall reimburse the directors for all reasonable out-of-pocket travel expenses incurred (consistent with the Company’s travel policy) in connection with
attending meetings of the Board of Directors. Each Preferred Director then serving shall be entitled in such person’s discretion to be a member of all committees of the Board of Directors. 

  
 20. 













 5.6 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, the Certificate
of Incorporation, or elsewhere, as the case may be. 
 5.7 Expenses of Counsel. In the event of a transaction which is a Sale of the
Company (as defined in the Amended and Restated Voting Agreement of even date herewith among the Investors, the Company and other parties named therein), the reasonable fees and disbursements, not to exceed $75,000 of one counsel for the Investors
(“Investor Counsel”), in their capacities as stockholders, shall be borne and paid by the Company. At the outset of considering a transaction which, if consummated would constitute a Sale of the Company, the Company shall obtain the
ability to share with the Investor Counsel (and such counsel’s clients) and shall share the confidential information (including, without limitation, the initial and all subsequent drafts of memoranda of understanding, letters of intent and
other transaction documents and related noncompete, employment, consulting and other compensation agreements and plans) pertaining to and memorializing any of the transactions which, individually or when aggregated with others would constitute the
Sale of the Company. The Company shall be obligated to share (and cause the Company’s counsel and investment bankers to share) such materials when distributed to the Company’s executives and/or any one (1) or more of the other parties
to such transaction(s). In the event that Investor Counsel deems it appropriate, in its reasonable discretion, to enter into a joint defense (or common interest) 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 and the Company’s counsel. In the event that one (1) 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 (or common interest) 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. 

5.8 Indemnification Matters. The Company hereby acknowledges that one 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 5.7 and shall have the right, power and authority to enforce the provisions of this Section 5.7 as though they were a party to this Agreement. 

  
 21. 













 5.9 Right to Conduct Activities. The Company hereby agrees and acknowledges that each
of Investor (together with their respective Affiliates) that is a professional investment organization reviews the business plans and related proprietary information of many enterprises, some of which may compete directly or indirectly with the
Company’s business (as currently conducted or as currently propose to be conducted). Nothing in this Agreement shall preclude or in any way restrict such Investors from evaluating or purchasing securities, including publicly traded securities,
of a particular enterprise, or investing or participating in any particular enterprise whether or not such enterprise has products or services which compete with those of the Company; and the Company hereby agrees that, to the extent permitted under
applicable law, such Investors (and 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. 

5.10 Side Letters. The Company agrees and covenants that it will promptly notify (and provide a copy to) each Investor if it enters into
any separate agreements or side letters with any other shareholder of the Company or an affiliate or any such shareholder (other than the Transaction Agreements as defined in the Purchase Agreement and employment related agreements made in the
ordinary course). 
 5.11 Cybersecurity. The Company shall, within one hundred eighty (180) days following the Closing (as
defined in the Purchase Agreement), use commercially reasonable efforts to (a) identify and restrict access (including through physical and/or technical controls) to the Company’s confidential business information and trade secrets and any
information about identified or identifiable natural persons maintained by or on behalf of the Company (collectively, “Protected Data”) to those individuals who have a need to access it and (b) implement reasonable physical,
technical and administrative safeguards(“Cybersecurity Solutions”) designed to protect the confidentiality, integrity and availability of its technology and systems (including servers, laptops, desktops, cloud, containers, virtual
environments and data centers) and all Protected Data. The Company shall use commercially reasonable efforts to ensure that the Cybersecurity Solutions and (x) are
up-to-date and include industry-standard protections (e.g., antivirus, endpoint detection and response and threat hunting), (y) to the extent determined necessary by the
Company or the Board of Directors, are backed by a breach prevention warranty from the vendor certifying the effectiveness of such solutions. The Company shall evaluate on a periodic basis at least annually whether such safeguards should be updated
to maintain a level of security appropriate to the risk posed to Company systems and Protected Data. The Company shall educate its employees about the proper use and storage of Protected Data, including periodic training as determined reasonably
necessary by the Company or the Board of Directors. 
 5.12 Anti-Harassment. The Company shall, within a reasonable time following the
Closing, 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 (including each Preferred Director). 

  
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 5.13 Termination of Covenants. The covenants set forth in this Section 5, except
for Sections 5.6, 5.7 and 5.8, shall terminate and be of no further force or effect immediately before (i) 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) a Deemed Liquidation Event, as such term is defined in the Certificate of Incorporation, 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 (a) is an Affiliate of a Holder; (b) 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 (c) after such transfer, holds at least 1,300,000 shares of Registrable Securities (subject to
appropriate adjustment for stock splits, stock dividends, combinations, and other recapitalizations); 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 (i) that is an Affiliate or
stockholder of a Holder; (ii) who is a Holder’s Immediate Family Member; or (iii) 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, establish 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 conflict of law principles that would result in the application of any law other than the law of the State of Delaware. 

6.3 Counterparts. This Agreement may be executed in two 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 facsimile, electronic mail (including pdf or any electronic signature complying with the U.S. federal ESIGN Act of 2000, the Uniform Electronic
Transactions Act or other applicable law) 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. 
 6.5 Notices. 

(a) 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 or facsimile 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 days after having been sent by registered or certified mail, return receipt 

  
 23. 













 
requested, postage prepaid; or (iv) one 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, facsimile number, or address as subsequently modified by written notice given in accordance with this Section 6.5. If notice is
given to the Company, it shall be sent to 300 Technology Sq. 8th Floor, Cambridge, Massachusetts 02139, Attention: Ivana Magovcevic-Liebisch; and a copy (which shall not constitute notice) shall also be sent to Goodwin Procter LLP, 100
Northern Avenue, Boston, MA 02210, Attention: Kingsley L. Taft and if notice is given to Investors, a copy (which shall not constitute notice) shall also be given to Wilson Sonsini Goodrich & Rosati, P.C., 28 State Street, 37th Floor,
Boston, MA 02109, Attention: Jennifer Fang, jfang@wsgr.com. 
 (b) Consent to Electronic Notice. Each Investor consents to the
delivery of any stockholder notice pursuant to the Delaware General Corporation Law (the “DGCL”), as amended or superseded from time to time, by electronic transmission pursuant to Section 232 of the DGCL (or any successor
thereto) at the electronic mail address or the facsimile number set forth below such Investor’s name on the Schedules hereto, as updated from time to time by notice to the Company, or as on the books of the Company. To the extent that any
notice given by means of electronic transmission is returned or undeliverable for any reason, the foregoing consent shall be deemed to have been revoked until a new or corrected electronic mail address has been provided, and such attempted
electronic notice shall be ineffective and deemed to not have been given. Each Investor agrees to promptly notify the Company of any change in such stockholder’s electronic mail address, and that failure to do so shall not affect the foregoing.

 6.6 Amendments and Waivers. Any term of this Agreement may be amended, modified or terminated 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 a majority of the shares of Common Stock issued or issuable
upon conversion of the then outstanding shares of Preferred Stock held by the Investors (voting as a single separate class and on an as-converted to Common Stock basis), 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);
and 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. Notwithstanding the foregoing, (a) this Agreement may not be amended, modified 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, modification, termination, or waiver applies to all Investors in the same fashion
(it being agreed that a waiver of the provisions of Section 4 with respect to a particular transaction shall be deemed to apply to all Investors in the same fashion if such waiver does so by its terms, notwithstanding the fact that certain
Investors may nonetheless, by agreement with the Company, purchase securities in such transaction), (b) Sections 3.1 and 3.2, Section 4 and any other section of this Agreement applicable to the Major Investors (including clause (b) of this
Section 6.6.) may be amended, modified, terminated or waived with only the written consent of the Company and the holders of a majority of the Registrable Securities then outstanding and held by the Major Investors, (c) Sections 3.3(a) and
clause (c) of this Section 6.6 may only be amended or waived with the prior written consent of Atlas, (d) Section 3.3(b) and clause (d) of this Section 6.6 may only be amended, or waived with the prior written consent
of Northpond, (e) Section 3.3(c) and clause (e) of this Section 6.6 may only be amended or waived with the prior written consent of Hatteras (f) Section 3.3(d) and clause (f) of this Section 6.6 may only be
amended or waived with the prior written consent of Vida, (g) Section 3.3(e) and clause (g) of this Section 6.6 may only be amended or waived with the prior written consent of Lightstone, (h) Sections 3.3(f), 3.6 and clause
(h) of this Section 6.6 may only be amended or waived with the prior written consent of Surveyor, (i) Section 1.21 may not be amended to increase the number of shares 

  
 24. 













 
set forth therein without the prior written consent of each Investor that would no longer qualify as a Major Investor as a result of such amendment, and (j) Sections 1.7, 5.9, and 5.10 may
not be amended or waived with respect to an Investor without the prior written consent of such Investor. 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, modification or termination hereof or waiver hereunder to
any party hereto that did not consent in writing to such amendment, modification, termination, or waiver. Any amendment, modification, 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 Affiliates 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, pursuant to the Purchase Agreement 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; Prior 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
the Commonwealth of Massachusetts and to the jurisdiction of the United States District Court for the District of Massachusetts 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 the Commonwealth of Massachusetts or the United States District Court for the District of Massachusetts, 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. 

  
 25. 













 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. 

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. 
 [Remainder of page Intentionally Left Blank] 

  
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 The parties have executed this Amended and Restated Investors’ Rights Agreement as of
the date first written above. 
  

					
	COMPANY:
	
	VIGIL NEUROSCIENCE, INC.
		
	By:	 	 /s/ Ivana Magovcevic-Liebisch

		 	Name:	 	Ivana Magovcevic-Liebisch
		 	Title:	 	Chief Executive Officer