Document:

EX-10.4

 Exhibit 10.4 

REGISTRATION RIGHTS AGREEMENT 

This REGISTRATION RIGHTS AGREEMENT (this “Agreement”), dated as
of                , 2021, is made and entered into by and among Social Capital Suvretta Holdings Corp. III, a Cayman Islands exempted company (the
“Company”), and SCS Sponsor III LLC, a Cayman Islands limited liability company (the “Sponsor”), and any other parties listed on the signature pages hereto (together with the Sponsor and any person or
entity who hereafter becomes a party to this Agreement pursuant to Section 5.2 of this Agreement, the “Holders” and, each, a “Holder”). 

RECITALS 
 WHEREAS,
the Company and the Sponsor have entered into that certain Securities Subscription Agreement, dated as of March 2, 2021, as amended and restated on May 24, 2021, pursuant to which the Sponsor subscribed for an aggregate of 5,750,000
Class B ordinary shares, par value $0.0001 per share, of the Company (the “Founder Shares”), up to 750,000 of which are subject to forfeiture depending on the extent to which the underwriter’s over-allotment option
in connection with the Company’s initial public offering is exercised; 
 WHEREAS,
on                , 2021, the Sponsor entered into that certain Securities Assignment Agreement, pursuant to which the Sponsor assigned an aggregate
of                of its Founder Shares to                ; 

WHEREAS, the Founder Shares are convertible into the Company’s Class A ordinary shares, par value $0.0001 per share (the
“Ordinary Shares”), at the time of the initial Business Combination, or earlier at the option of the holder, on a one-for-one basis, subject to
adjustment, on the terms and conditions provided in the Company’s amended and restated memorandum and articles of association, as may be amended from time to time; 

WHEREAS, the Company and the Sponsor have entered into that certain Private Placement Shares Purchase Agreement, dated as
of                , 2021, pursuant to which the Sponsor agreed to purchase an aggregate of 600,000 Ordinary Shares (the “Private Placement
Shares”), in a private placement transaction to occur concurrently with the closing of the Company’s initial public offering; 

WHEREAS, in order to finance the Company’s transaction costs in connection with an intended Business Combination, the Sponsor, an
affiliate of the Sponsor or certain of the Company’s officers or directors may, but are not obligated to, loan the Company funds as the Company may require, of which up to $1,500,000 of such loans may be convertible into shares of the
post-Business Combination company, at a price of $10.00 per share, at the option of the lender (the “Working Capital Shares”); and 

WHEREAS, the Company and the Holders desire to enter into this Agreement, pursuant to which the Company shall grant the Holders certain
registration rights with respect to certain securities of the Company, as set forth in this Agreement. 
 NOW, THEREFORE, in
consideration of the representations, covenants and agreements contained herein, and certain other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto, intending to be legally bound,
hereby agree as follows: 
 ARTICLE I 

DEFINITIONS 
 1.1
Definitions. The terms defined in this Article I shall, for all purposes of this Agreement, have the respective meanings set forth below: 

“Adverse Disclosure” shall mean any public disclosure of material non-public
information, which disclosure, in the good faith judgment of the Chief Executive Officer, the President or the principal financial officer of the Company, after consultation with counsel to the Company, (i) would be required to be made in any
Registration Statement or Prospectus in order for the applicable Registration Statement or Prospectus not to contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements contained therein (in the
case of any prospectus and any preliminary prospectus, in the light of the circumstances under which they were made) not misleading, (ii) would not be required to be made at such time if the Registration Statement were not being filed and
(iii) the Company has a bona fide business purpose for not making the information contained therein public. 

 “Agreement” shall have the meaning given in the Preamble. 

“Board” shall mean the board of directors of the Company. 

“Business Combination” shall mean any merger, share exchange, asset acquisition, share purchase, reorganization or
other similar business combination with one or more businesses, involving the Company. 
 “Commission” shall mean
the Securities and Exchange Commission. 
 “Company” shall have the meaning given in the Preamble. 

“Demand Registration” shall have the meaning given in subsection 2.1.1. 

“Demanding Holder” shall have the meaning given in subsection 2.1.1. 

“Exchange Act” shall mean the Securities Exchange Act of 1934, as it may be amended from time to time. 

“Form S-1” shall have the meaning given in subsection 2.1.1. 

“Form S-3” shall have the meaning given in subsection 2.3. 

“Founder Shares” shall have the meaning given in the Recitals hereto and shall be deemed to include the Ordinary
Shares issuable upon conversion thereof. 
 “Founder Shares Lock-up Period”
shall mean, with respect to the Founder Shares, the period ending on the earlier of (A) one year after the completion of the Company’s initial Business Combination and (B) subsequent to the Company’s initial Business Combination,
(x) if the last reported sale price of the Ordinary Shares equals or exceeds $12.00 per share (as adjusted for share sub-divisions, share dividends, rights issuances, reorganizations, recapitalizations
and the like) for any twenty (20) trading days within any thirty (30)-trading day period commencing at least one hundred and fifty (150) days after the Company’s initial Business Combination or (y) the date on which the Company
completes a liquidation, merger, share exchange, reorganization or other similar transaction that results in all of the Company’s shareholders having the right to exchange their Ordinary Shares for cash, securities or other property. 

“Holders” shall have the meaning given in the Preamble. 

“Letter Agreement” shall mean that certain letter agreement, dated as of the date hereof, by and among the Company,
the Sponsor and each of the Company’s officers, directors and director nominees. 
 “Maximum Number of
Securities” shall have the meaning given in subsection 2.1.4. 
 “Misstatement” shall mean an
untrue statement of a material fact or an omission to state a material fact required to be stated in a Registration Statement or Prospectus or necessary to make the statements in a Registration Statement or Prospectus (in the case of a Prospectus,
in the light of the circumstances under which they were made) not misleading. 
 “Ordinary Shares” shall have the
meaning given in the Recitals. 
 “Permitted Transferees” shall mean a person or entity to whom a Holder of
Registrable Securities is permitted to transfer such Registrable Securities prior to the expiration of the Founder Shares Lock-up Period or Private Placement Lock-up
Period, as the case may be, under the Letter Agreement and any other applicable agreement between such Holder and the Company and to any transferee thereafter. 

  
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 “Piggyback Registration” shall have the meaning given in
subsection 2.2.1. 
 “Private Placement Lock-up Period” shall mean,
with respect to Private Placement Shares that are held by the initial purchasers of such Private Placement Shares or their Permitted Transferees, the period ending thirty (30) days after the completion of the Company’s initial Business
Combination. 
 “Private Placement Shares” shall have the meaning given in the Recitals. 

“Prospectus” shall mean the prospectus included in any Registration Statement, as supplemented by any and all
prospectus supplements and as amended by any and all post-effective amendments and including all material incorporated by reference in such prospectus. 

“Registrable Security” shall mean (a) the Ordinary Shares issued or issuable upon the conversion of any Founder
Shares, (b) the Private Placement Shares, (c) the Working Capital Shares, (d) any outstanding Ordinary Shares or any other equity security (including the Ordinary Shares issued or issuable upon the exercise of any other equity
security) of the Company held by a Holder as of the date of this Agreement, and (e) any other equity security of the Company issued or issuable with respect to any such Ordinary Shares by way of a share dividend or share sub-division or in connection with a combination of shares, recapitalization, merger, consolidation, spin-off or reorganization; provided, however, that, as to
any particular Registrable Security, such securities shall cease to be Registrable Securities when: (A) a Registration Statement with respect to the sale of such securities shall have become effective under the Securities Act and such
securities shall have been sold, transferred, disposed of or exchanged in accordance with such Registration Statement; (B) such securities shall have been otherwise transferred, new certificates for such securities not bearing a legend
restricting further transfer shall have been delivered by the Company and subsequent public distribution of such securities shall not require registration under the Securities Act; (C) such securities shall have ceased to be outstanding;
(D) such securities may be sold without registration pursuant to Rule 144 promulgated under the Securities Act (but with no volume or other restrictions or limitations); or (E) such securities have been sold to, or through, a broker,
dealer or underwriter in a public distribution or other public securities transaction. 
 “Registration” shall mean
a registration effected by preparing and filing a registration statement or similar document in compliance with the requirements of the Securities Act, and the applicable rules and regulations promulgated thereunder, and such registration statement
becoming effective. 
 “Registration Expenses” shall mean the out-of-pocket expenses of a Registration, including, without limitation, the following: 
 (A) all
registration and filing fees (including fees with respect to filings required to be made with the Financial Industry Regulatory Authority, Inc.) and any securities exchange on which the Ordinary Shares are then listed; 

(B) fees and expenses of compliance with securities or blue sky laws (including reasonable fees and disbursements of outside counsel for the
Underwriters in connection with blue sky qualifications of Registrable Securities); 
 (C) printing, messenger, telephone and delivery
expenses; 
 (D) reasonable fees and disbursements of counsel for the Company; 

(E) reasonable fees and disbursements of all independent registered public accountants of the Company incurred specifically in connection with
such Registration; and 

  
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 (F) reasonable fees and expenses of one (1) legal counsel selected by the majority-in-interest of the Demanding Holders initiating a Demand Registration to be registered for offer and sale in the applicable Registration. 

“Registration Statement” shall mean any registration statement under the Securities Act that covers the Registrable
Securities pursuant to the provisions of this Agreement, including the Prospectus included in such registration statement, amendments (including post-effective amendments) and supplements to such registration statement, and all exhibits to and all
material incorporated by reference in such registration statement. 
 “Requesting Holder” shall have the meaning
given in subsection 2.1.1. 
 “Securities Act” shall mean the Securities Act of 1933, as amended from time to
time. 
 “Sponsor” shall have the meaning given in the Preamble. 

“Underwriter” shall mean a securities dealer who purchases any Registrable Securities as principal in an Underwritten
Offering and not as part of such dealer’s market-making activities. 
 “Underwritten Registration” or
“Underwritten Offering” shall mean a Registration in which securities of the Company are sold to an Underwriter in a firm commitment underwriting for distribution to the public. 

“Working Capital Shares” shall have the meaning given in the Recitals hereto. 

ARTICLE II 

REGISTRATIONS 
 2.1
Demand Registration. 
 2.1.1 Request for Registration. Subject to the provisions of subsection 2.1.4 and
Section 2.4 hereof, at any time and from time to time on or after the date the Company consummates the initial Business Combination, the Holders of at least thirty percent (30%) in interest of the then outstanding number of
Registrable Securities (the “Demanding Holders”) may make a written demand for Registration under the Securities Act of all or part of their Registrable Securities, which written demand shall describe the amount and type of
securities to be included in such Registration and the intended method(s) of distribution thereof (such written demand a “Demand Registration”). The Company shall, within ten (10) days of the Company’s receipt of
the Demand Registration, notify, in writing, all other Holders of Registrable Securities of such demand, and each Holder of Registrable Securities who thereafter wishes to include all or a portion of such Holder’s Registrable Securities in a
Registration pursuant to a Demand Registration (each such Holder that includes all or a portion of such Holder’s Registrable Securities in such Registration, a “Requesting Holder”) shall so notify the Company, in
writing, within five (5) days after the receipt by the Holder of the notice from the Company. Upon receipt by the Company of any such written notification from a Requesting Holder(s), such Requesting Holder(s) shall be entitled to have their
Registrable Securities included in a Registration pursuant to a Demand Registration and the Company shall effect, as soon thereafter as practicable, the Registration of all Registrable Securities requested by the Demanding Holder(s) and Requesting
Holder(s) pursuant to such Demand Registration, including by filing a Registration Statement relating thereto as soon as practicable, but not more than forty-five (45) days immediately after the Company’s receipt of the Demand
Registration. Under no circumstances shall the Company be obligated to effect more than an aggregate of three (3) Registrations pursuant to a Demand Registration under this subsection 2.1.1 with respect to any or all Registrable
Securities; provided, however, that a Registration shall not be counted for such purposes unless a Form S-1 or any similar long-form registration statement that may be available at such time
(“Form S-1”) has become effective and all of the Registrable Securities requested by the Requesting Holders to be registered on behalf of the Requesting Holders in such Form S-1 Registration have been sold, in accordance with Section 3.1 of this Agreement. 

  
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 2.1.2 Effective Registration. Notwithstanding the provisions of subsection
2.1.1 above or any other part of this Agreement, a Registration pursuant to a Demand Registration shall not count as a Registration unless and until (i) the Registration Statement filed with the Commission with respect to a Registration
pursuant to a Demand Registration has been declared effective by the Commission and (ii) the Company has complied with all of its obligations under this Agreement with respect thereto; provided, further, that if, after such
Registration Statement has been declared effective, an offering of Registrable Securities in a Registration pursuant to a Demand Registration is subsequently interfered with by any stop order or injunction of the Commission, federal or state court
or any other governmental agency the Registration Statement with respect to such Registration shall be deemed not to have been declared effective, unless and until, (A) such stop order or injunction is removed, rescinded or otherwise
terminated, and (B) a majority-in-interest of the Demanding Holders initiating such Demand Registration thereafter affirmatively elect to continue with such
Registration and accordingly notify the Company in writing, but in no event later than five (5) days, of such election; provided, further, that the Company shall not be obligated or required to file another Registration Statement
until the Registration Statement that has been previously filed with respect to a Registration pursuant to a Demand Registration becomes effective or is subsequently terminated. 

2.1.3 Underwritten Offering. Subject to the provisions of subsection 2.1.4 and Section 2.4 hereof, if
a majority-in-interest of the Demanding Holders so advise the Company as part of their Demand Registration that the offering of the Registrable Securities pursuant to
such Demand Registration shall be in the form of an Underwritten Offering, then the right of such Demanding Holder or Requesting Holder (if any) to include its Registrable Securities in such Registration shall be conditioned upon such Holder’s
participation in such Underwritten Offering and the inclusion of such Holder’s Registrable Securities in such Underwritten Offering to the extent provided herein. All such Holders proposing to distribute their Registrable Securities through an
Underwritten Offering under this subsection 2.1.3 shall enter into an underwriting agreement in customary form with the Underwriter(s) selected for such Underwritten Offering by the majority-in-interest of the Demanding Holders initiating the Demand Registration. 
 2.1.4
Reduction of Underwritten Offering. If the managing Underwriter or Underwriters in an Underwritten Registration pursuant to a Demand Registration, in good faith, advise the Company, the Demanding Holders and the Requesting Holders (if any) in
writing that the dollar amount or number of Registrable Securities that the Demanding Holders and the Requesting Holders (if any) desire to sell, taken together with all other Ordinary Shares or other equity securities that the Company desires to
sell and the Ordinary Shares, if any, as to which a Registration has been requested pursuant to separate written contractual piggy-back registration rights held by any other shareholders who desire to sell, exceeds the maximum dollar amount or
maximum number of equity securities that can be sold in the Underwritten Offering without adversely affecting the proposed offering price, the timing, the distribution method, or the probability of success of such offering (such maximum dollar
amount or maximum number of such securities, as applicable, the “Maximum Number of Securities”), then the Company shall include in such Underwritten Offering, as follows: (i) first, the Registrable Securities of the
Demanding Holders and the Requesting Holders (if any) (pro rata based on the respective number of Registrable Securities that each such Holder has requested be included in such Underwritten Registration and the aggregate number of Registrable
Securities that such Holders have requested be included in such Underwritten Registration (such proportion is referred to herein as “Pro Rata”)) that can be sold without exceeding the Maximum Number of Securities;
(ii) second, to the extent that the Maximum Number of Securities has not been reached under the foregoing clause (i), the Ordinary Shares or other equity securities that the Company desires to sell, which can be sold without exceeding the
Maximum Number of Securities; and (iii) third, to the extent that the Maximum Number of Securities has not been reached under the foregoing clauses (i) and (ii), the Ordinary Shares or other equity securities of other persons or entities
that the Company is obligated to register in a Registration pursuant to separate written contractual piggy-back registration rights held by such persons or entities and that can be sold without exceeding the Maximum Number of Securities. 

2.1.5 Demand Registration Withdrawal. A
majority-in-interest of the Demanding Holders initiating a Demand Registration or a
majority-in-interest of the Requesting Holders (if any), pursuant to a Registration under subsection 2.1.1 shall have the right to withdraw from a Registration
pursuant to such Demand Registration for any or no reason whatsoever upon written notification to the Company and the Underwriter or Underwriters (if any) of their intention to withdraw from such Registration prior to the effectiveness of the
Registration Statement filed with the Commission with respect to the Registration of their Registrable Securities pursuant to such Demand Registration. Notwithstanding anything to the contrary in this Agreement, (i) the Company may effect any
Underwritten Registration pursuant to any then effective Registration Statement, including a Form S-3, that is then available for such offering and (ii) the Company shall be responsible for the
Registration Expenses incurred in connection with a Registration pursuant to a Demand Registration prior to its withdrawal under this subsection 2.1.5. 

  
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 2.2 Piggyback Registration. 

2.2.1 Piggyback Rights. If, at any time on or after the date the Company consummates an initial Business Combination, the Company
proposes to file a Registration Statement under the Securities Act with respect to an offering of equity securities, or securities or other obligations exercisable or exchangeable for, or convertible into equity securities, for its own account or
for the account of shareholders of the Company (or by the Company and by the shareholders of the Company), other than a Registration Statement (i) filed in connection with any employee share option or other benefit plan, (ii) for an
exchange offer or offering of securities solely to the Company’s existing shareholders, (iii) for an offering of debt that is convertible into equity securities of the Company or (iv) for a dividend reinvestment plan, then the Company
shall give written notice of such proposed filing to all of the Holders of Registrable Securities as soon as practicable but not less than ten (10) days before the anticipated filing date of such Registration Statement, which notice shall
(A) describe the amount and type of securities to be included in such offering, the intended method(s) of distribution, and the name of the proposed managing Underwriter or Underwriters, if any, in such offering, and (B) offer to all of
the Holders of Registrable Securities the opportunity to register the sale of such number of Registrable Securities as such Holders may request in writing within five (5) days after receipt of such written notice (such Registration a
“Piggyback Registration”). The Company shall, in good faith, cause such Registrable Securities to be included in such Piggyback Registration and shall use its best efforts to cause the managing Underwriter or Underwriters of
a proposed Underwritten Offering to permit the Registrable Securities requested by the Holders pursuant to this subsection 2.2.1 to be included in a Piggyback Registration on the same terms and conditions as any similar securities of the
Company included in such Registration and to permit the sale or other disposition of such Registrable Securities in accordance with the intended method(s) of distribution thereof. All such Holders proposing to distribute their Registrable Securities
through an Underwritten Offering under this subsection 2.2.1 shall enter into an underwriting agreement in customary form with the Underwriter(s) selected for such Underwritten Offering by the Company. 

2.2.2 Reduction of Piggyback Registration. If the managing Underwriter or Underwriters in an Underwritten Registration that is to be a
Piggyback Registration, in good faith, advises the Company and the Holders of Registrable Securities participating in the Piggyback Registration in writing that the dollar amount or number of the Ordinary Shares or other securities that the Company
desires to sell, taken together with (i) the Registrable Securities as to which registration has been requested pursuant to subsection 2.2.1 hereof, and (ii) the Ordinary Shares or other equity securities, if any, of other persons
or entities that the Company is obligated to register in a Registration pursuant to separate written contractual piggy-back registration rights held by such persons or entities, exceeds the Maximum Number of Securities, then: 

(a) If the Registration is undertaken for the Company’s account, the Company shall include in any such Registration (A) first, the
Ordinary Shares or other equity securities that the Company desires to sell, which can be sold without exceeding the Maximum Number of Securities; (B) second, to the extent that the Maximum Number of Securities has not been reached under the
foregoing clause (A), the Registrable Securities of Holders exercising their rights to register their Registrable Securities pursuant to subsection 2.2.1 hereof, pro rata, based on the respective number of Registrable Securities that each
Holder has requested be included in such Registration and the aggregate number of Registrable Securities that the Holders have requested to be included in such Registration, which can be sold without exceeding the Maximum Number of Securities; and
(C) third, to the extent that the Maximum Number of Securities has not been reached under the foregoing clauses (A) and (B), the Ordinary Shares or other equity securities, if any, of other persons or entities that the Company is obligated
to register in a Registration pursuant to separate written contractual piggy-back registration rights held by such persons or entities, which can be sold without exceeding the Maximum Number of Securities; 

(b) If the Registration is pursuant to a request by persons or entities other than the Holders of Registrable Securities (and not undertaken
for the Company’s account), then the Company shall include in any such Registration (A) first, the Ordinary Shares or other equity securities, if any, of such requesting persons or entities, other than the Holders of Registrable
Securities, which can be sold without exceeding the Maximum Number of Securities; (B) second, to the extent that the Maximum Number of Securities has not been reached under the foregoing clause (A), the Registrable Securities of Holders
exercising their rights to register their Registrable 

  
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Securities pursuant to subsection 2.2.1 hereof, pro rata, based on the respective number of Registrable Securities that each Holder has requested be included in such Registration and the
aggregate number of Registrable Securities that the Holders have requested to be included in such Registration, which can be sold without exceeding the Maximum Number of Securities; (C) third, to the extent that the Maximum Number of Securities
has not been reached under the foregoing clauses (A) and (B), the Ordinary Shares or other equity securities that the Company desires to sell, which can be sold without exceeding the Maximum Number of Securities; and (D) fourth, to the
extent that the Maximum Number of Securities has not been reached under the foregoing clauses (A), (B) and (C), the Ordinary Shares or other equity securities, if any, of other persons or entities that the Company is obligated to register in a
Registration pursuant to separate written contractual piggy-back registration rights held by such persons or entities, which can be sold without exceeding the Maximum Number of Securities. 

2.2.3 Piggyback Registration Withdrawal. Any Holder of Registrable Securities shall have the right to withdraw from a Piggyback
Registration for any or no reason whatsoever upon written notification to the Company and the Underwriter or Underwriters (if any) of his, her or its intention to withdraw from such Piggyback Registration prior to the effectiveness of the
Registration Statement filed with the Commission with respect to such Piggyback Registration (or in the case of an Underwritten Registration pursuant to Rule 415 under the Securities Act, at least two (2) business days prior to the time of
pricing of the applicable offering). The Company (whether on its own good faith determination or as the result of a request for withdrawal by persons pursuant to separate written contractual obligations) may withdraw a Registration Statement filed
with the Commission in connection with a Piggyback Registration at any time prior to the effectiveness of such Registration Statement. Notwithstanding anything to the contrary in this Agreement, the Company shall be responsible for the Registration
Expenses incurred in connection with the Piggyback Registration prior to its withdrawal under this subsection 2.2.3. 
 2.2.4
Unlimited Piggyback Registration Rights. For purposes of clarity, any Registration effected pursuant to Section 2.2 hereof shall not be counted as a Registration pursuant to a Demand Registration effected under
Section 2.1 hereof. 
 2.3 Registrations on Form S-3. Any Holder of
Registrable Securities may at any time, and from time to time, request in writing that the Company, pursuant to Rule 415 under the Securities Act (or any successor rule promulgated thereafter by the Commission), register the resale of any or all of
their Registrable Securities on Form S-3 or any similar short-form registration statement that may be available at such time pursuant to this Section 2.3 (“Form S-3”); provided, however, that the Company shall not be obligated to effect such request through an Underwritten Offering. Within five (5) days of the Company’s receipt of a
written request from a Holder or Holders of Registrable Securities for a Registration on Form S-3, the Company shall promptly give written notice of the proposed Registration on Form S-3 to all other Holders of Registrable Securities, and each Holder of Registrable Securities who thereafter wishes to include all or a portion of such Holder’s Registrable Securities in such Registration on
Form S-3 shall so notify the Company, in writing, within five (5) days after the receipt by the Holder of the notice from the Company. As soon as practicable thereafter, but not more than twelve
(12) days after the Company’s initial receipt of such written request for a Registration on Form S-3, the Company shall file a Registration Statement relating to all or such portion of such
Holder’s Registrable Securities as are specified in such written request, together with all or such portion of Registrable Securities of any other Holder or Holders joining in such request as are specified in the written notification given by
such Holder or Holders; provided, however, that the Company shall not be obligated to effect any such Registration pursuant to Section 2.3 hereof if (i) a Form S-3
is not available for such offering; or (ii) the Holders of Registrable Securities, together with the Holders of any other equity securities of the Company entitled to inclusion in such Registration, propose to sell the Registrable Securities
and such other equity securities (if any) at any aggregate price to the public of less than $5,000,000. 
 2.4 Restrictions on
Registration Rights. If (A) during the period starting with the date sixty (60) days prior to the Company’s good faith estimate of the date of the filing of, and ending on a date one hundred and twenty (120) days after the
effective date of, a Company-initiated Registration and provided that the Company has delivered written notice to the Holders of such filing prior to receipt of a Demand Registration pursuant to subsection 2.1.1 and the Company continues to
actively employ, in good faith, all reasonable efforts to cause the applicable Registration Statement to become effective; (B) the Holders have requested an Underwritten Registration and the Company and the Holders are unable to obtain the
commitment of underwriters to firmly underwrite the offer; or (C) in the good faith judgment of the Board, such Registration would be seriously detrimental to the Company and the Board concludes as a result that it is essential to defer the
filing of a Registration Statement for such Registration at 

  
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such time, then in each case, the Company shall furnish to such Holders a certificate signed by the Chairman of the Board or Chief Executive Officer of the Company stating that in the good faith
judgment of the Board it would be seriously detrimental to the Company for the Registration Statement for such Registration to be filed in the near future and that it is therefore essential to defer the filing of such Registration Statement. In such
event, the Company shall have the right to defer the filing of such Registration Statement for a period of not more than thirty (30) days; provided, however, that the Company shall not defer its obligation in this manner more than
once in any 12-month period. Notwithstanding anything to the contrary contained in this Agreement, the Company shall not be required to effect or permit any Registration or cause any Registration Statement to
become effective, with respect to any Registrable Securities held by any Holder, until after the expiration of the Founder Shares Lock-Up Period or the Private Placement
Lock-Up Period, as the case may be. 
 ARTICLE III 

COMPANY PROCEDURES 
 3.1
General Procedures. If at any time on or after the date the Company consummates an initial Business Combination the Company is required to effect the Registration of Registrable Securities, the Company shall use its best efforts to effect
such Registration to permit the sale of such Registrable Securities in accordance with the intended plan of distribution thereof, and pursuant thereto the Company shall, as expeditiously as possible: 

3.1.1 prepare and file with the Commission as soon as practicable a Registration Statement with respect to such Registrable Securities and use
its reasonable best efforts to cause such Registration Statement to become effective and remain effective until all Registrable Securities covered by such Registration Statement have been sold; 

3.1.2 prepare and file with the Commission such amendments and post-effective amendments to the Registration Statement, and such supplements
to the Prospectus, as may be reasonably requested by the majority-in-interest of the Holders with Registrable Securities registered on such Registration Statement or any
Underwriter of Registrable Securities or as may be required by the rules, regulations or instructions applicable to the registration form used by the Company or by the Securities Act or rules and regulations thereunder to keep the Registration
Statement effective until all Registrable Securities covered by such Registration Statement are sold in accordance with the intended plan of distribution set forth in such Registration Statement or supplement to the Prospectus; 

3.1.3 prior to filing a Registration Statement or Prospectus, or any amendment or supplement thereto, furnish without charge to the
Underwriters, if any, and the Holders of Registrable Securities included in such Registration, and such Holders’ legal counsel, copies of such Registration Statement as proposed to be filed, each amendment and supplement to such Registration
Statement (in each case including all exhibits thereto and documents incorporated by reference therein), the Prospectus included in such Registration Statement (including each preliminary Prospectus), and such other documents as the Underwriters and
the Holders of Registrable Securities included in such Registration or the legal counsel for any such Holders may request in order to facilitate the disposition of the Registrable Securities owned by such Holders; 

3.1.4 prior to any public offering of Registrable Securities, use its best efforts to (i) register or qualify the Registrable Securities
covered by the Registration Statement under such securities or “blue sky” laws of such jurisdictions in the United States as the Holders of Registrable Securities included in such Registration Statement (in light of their intended plan of
distribution) may request and (ii) take such action necessary to cause such Registrable Securities covered by the Registration Statement to be registered with or approved by such other governmental authorities as may be necessary by virtue of
the business and operations of the Company and do any and all other acts and things that may be necessary or advisable to enable the Holders of Registrable Securities included in such Registration Statement to consummate the disposition of such
Registrable Securities in such jurisdictions; provided, however, that the Company shall not be required to qualify generally to do business in any jurisdiction where it would not otherwise be required to qualify or take any action to
which it would be subject to general service of process or taxation in any such jurisdiction where it is not then otherwise so subject; 

3.1.5 cause all such Registrable Securities to be listed on each securities exchange or automated quotation system on which similar securities
issued by the Company are then listed; 

  
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 3.1.6 provide a transfer agent and registrar for all such Registrable Securities no later
than the effective date of such Registration Statement; 
 3.1.7 advise each seller of such Registrable Securities, promptly after it shall
receive notice or obtain knowledge thereof, of the issuance of any stop order by the Commission suspending the effectiveness of such Registration Statement or the initiation or threatening of any proceeding for such purpose and promptly use its
reasonable best efforts to prevent the issuance of any stop order or to obtain its withdrawal if such stop order should be issued; 
 3.1.8
at least five (5) days prior to the filing of any Registration Statement or Prospectus or any amendment or supplement to such Registration Statement or Prospectus furnish a copy thereof to each seller of such Registrable Securities or its
counsel; 
 3.1.9 notify the Holders at any time when a Prospectus relating to such Registration Statement is required to be delivered under
the Securities Act, of the happening of any event as a result of which the Prospectus included in such Registration Statement, as then in effect, includes a Misstatement, and then to correct such Misstatement as set forth in
Section 3.4; 
 3.1.10 permit a representative of the Holders, the Underwriters, if any, and any attorney or
accountant retained by such Holders or Underwriter to participate, at each such person’s own expense, in the preparation of the Registration Statement, and cause the Company’s officers, directors and employees to supply all information
reasonably requested by any such representative, Underwriter, attorney or accountant in connection with the Registration; provided, however, that such representatives or Underwriters enter into a confidentiality agreement, in form and
substance reasonably satisfactory to the Company, prior to the release or disclosure of any such information; 
 3.1.11 obtain a “cold
comfort” letter from the Company’s independent registered public accountants in the event of an Underwritten Registration, in customary form and covering such matters of the type customarily covered by “cold comfort” letters as
the managing Underwriter may reasonably request, and reasonably satisfactory to a majority-in-interest of the participating Holders; 

3.1.12 on the date the Registrable Securities are delivered for sale pursuant to such Registration, obtain an opinion and negative assurance
letter, dated as of such date, of counsel representing the Company for the purposes of such Registration, addressed to the Holders, the placement agent or sales agent, if any, and the Underwriters, if any, covering such legal matters with respect to
the Registration in respect of which such opinion and negative assurance letter is being given as the Holders, placement agent, sales agent, or Underwriter may reasonably request and as are customarily included in such opinions and negative
assurance letters, and reasonably satisfactory to a majority in interest of the participating Holders; 
 3.1.13 in the event of any
Underwritten Offering, enter into and perform its obligations under an underwriting agreement, in usual and customary form, with the managing Underwriter of such offering; 

3.1.14 make available to its security holders, as soon as reasonably practicable, an earnings statement covering the period of at least twelve
(12) months beginning with the first day of the Company’s first full calendar quarter after the effective date of the Registration Statement which satisfies the provisions of Section 11(a) of the Securities Act and Rule 158
thereunder; 
 3.1.15 if the Registration involves the Registration of Registrable Securities involving gross proceeds in excess of
$25,000,000, use its reasonable efforts to make available senior executives of the Company to participate in customary “road show” presentations that may be reasonably requested by the Underwriter in any Underwritten Offering; and 

3.1.16 otherwise, in good faith, cooperate reasonably with, and take such customary actions as may reasonably be requested by the Holders, in
connection with such Registration. 

  
 9 

 3.2 Registration Expenses. The Registration Expenses of all Registrations shall be
borne by the Company. It is acknowledged by the Holders that the Holders shall bear all incremental selling expenses relating to the sale of Registrable Securities, such as Underwriters’ commissions and discounts, brokerage fees, Underwriter
marketing costs and, other than as set forth in the definition of “Registration Expenses,” all reasonable fees and expenses of any legal counsel representing the Holders. 

3.3 Requirements for Participation in Underwritten Offerings. No person may participate in any Underwritten Offering for equity
securities of the Company pursuant to a Registration initiated by the Company hereunder unless such person (i) agrees to sell such person’s securities on the basis provided in any underwriting arrangements approved by the Company and
(ii) completes and executes all customary questionnaires, powers of attorney, indemnities, lock-up agreements, underwriting agreements and other customary documents as may be reasonably required under the
terms of such underwriting arrangements. 
 3.4 Suspension of Sales; Adverse Disclosure. Upon receipt of written notice from the
Company that a Registration Statement or Prospectus contains a Misstatement, each of the Holders shall forthwith discontinue disposition of Registrable Securities until he, she or it has received copies of a supplemented or amended Prospectus
correcting the Misstatement (it being understood that the Company hereby covenants to prepare and file such supplement or amendment as soon as practicable after the time of such notice), or until he, she or it is advised in writing by the Company
that the use of the Prospectus may be resumed. If the filing, initial effectiveness or continued use of a Registration Statement in respect of any Registration at any time would require the Company to make an Adverse Disclosure or would require the
inclusion in such Registration Statement of financial statements that are unavailable to the Company for reasons beyond the Company’s control, the Company may, upon giving prompt written notice of such action to the Holders, delay the filing or
initial effectiveness of, or suspend use of, such Registration Statement for the shortest period of time, but in no event more than thirty (30) days, determined in good faith by the Company to be necessary for such purpose. In the event the
Company exercises its rights under the preceding sentence, the Holders agree to suspend, immediately upon their receipt of the notice referred to above, their use of the Prospectus relating to any Registration in connection with any sale or offer to
sell Registrable Securities. The Company shall immediately notify the Holders of the expiration of any period during which it exercised its rights under this Section 3.4. 

3.5 Reporting Obligations. As long as any Holder shall own Registrable Securities, the Company, at all times while it shall be a
reporting company under the Exchange Act, covenants to file timely (or obtain extensions in respect thereof and file within the applicable grace period) all reports required to be filed by the Company after the date hereof pursuant to Sections 13(a)
or 15(d) of the Exchange Act and to promptly furnish the Holders with true and complete copies of all such filings. The Company further covenants that it shall take such further action as any Holder may reasonably request, all to the extent required
from time to time to enable such Holder to sell Registrable Securities held by such Holder without registration under the Securities Act within the limitation of the exemptions provided by Rule 144 promulgated under the Securities Act, including
providing any legal opinions. Upon the request of any Holder, the Company shall deliver to such Holder a written certification of a duly authorized officer as to whether it has complied with such requirements. 

ARTICLE IV 

INDEMNIFICATION AND CONTRIBUTION 

4.1 Indemnification. 

4.1.1 The Company agrees to indemnify, to the extent permitted by law, each Holder of Registrable Securities, its officers, directors and
agents and each person who controls such Holder (within the meaning of the Securities Act) against all losses, claims, damages, liabilities and out-of-pocket expenses
(including without limitation reasonable outside attorneys’ fees) resulting from any untrue or alleged untrue statement of material fact contained in any Registration Statement, Prospectus or preliminary Prospectus or any amendment thereof or
supplement thereto or any omission or alleged omission of a material fact required to be stated therein or necessary to make the statements therein not misleading, except insofar as the same are caused by or contained in any information or affidavit
so furnished in writing to the Company by such Holder expressly for use therein. The Company shall indemnify the Underwriters, their officers and directors and each person who controls such Underwriters (within the meaning of the Securities Act) to
the same extent as provided in the foregoing with respect to the indemnification of the Holder. 

  
 10 

 4.1.2 In connection with any Registration Statement in which a Holder of Registrable
Securities is participating, such Holder shall furnish to the Company in writing such information and affidavits as the Company reasonably requests for use in connection with any such Registration Statement or Prospectus and, to the extent permitted
by law, shall indemnify the Company, its directors, officers and agents and each person who controls the Company (within the meaning of the Securities Act) against all losses, claims, damages, liabilities and out-of-pocket expenses (including without limitation reasonable outside attorneys’ fees) resulting from any untrue or alleged untrue statement of material fact contained in any Registration Statement,
Prospectus or preliminary Prospectus or any amendment thereof or supplement thereto or any omission or alleged omission of a material fact required to be stated therein or necessary to make the statements therein not misleading, but only to the
extent that such untrue statement or omission is contained in any information or affidavit so furnished in writing by such Holder expressly for use therein; provided, however, that the obligation to indemnify shall be several, not
joint and several, among such Holders of Registrable Securities, and the liability of each such Holder of Registrable Securities shall be in proportion to and limited to the net proceeds received by such Holder from the sale of Registrable
Securities pursuant to such Registration Statement. The Holders of Registrable Securities shall indemnify the Underwriters, their officers, directors and each person who controls such Underwriters (within the meaning of the Securities Act) to the
same extent as provided in the foregoing with respect to indemnification of the Company. 
 4.1.3 Any person entitled to indemnification
herein shall (i) give prompt written notice to the indemnifying party of any claim with respect to which it seeks indemnification (provided that the failure to give prompt notice shall not impair any person’s right to indemnification
hereunder to the extent such failure has not materially prejudiced the indemnifying party) and (ii) unless in such indemnified party’s reasonable judgment a conflict of interest between such indemnified and indemnifying parties may exist
with respect to such claim, permit such indemnifying party to assume the defense of such claim with counsel reasonably satisfactory to the indemnified party. If such defense is assumed, the indemnifying party shall not be subject to any liability
for any settlement made by the indemnified party without its consent (but such consent shall not be unreasonably withheld). An indemnifying party who is not entitled to, or elects not to, assume the defense of a claim shall not be obligated to pay
the fees and expenses of more than one counsel for all parties indemnified by such indemnifying party with respect to such claim, unless in the reasonable judgment of any indemnified party a conflict of interest may exist between such indemnified
party and any other of such indemnified parties with respect to such claim. No indemnifying party shall, without the consent of the indemnified party, consent to the entry of any judgment or enter into any settlement which cannot be settled in all
respects by the payment of money (and such money is so paid by the indemnifying party pursuant to the terms of such settlement) or which settlement does not include as an unconditional term thereof the giving by the claimant or plaintiff to such
indemnified party of a release from all liability in respect to such claim or litigation. 
 4.1.4 The indemnification provided for under
this Agreement shall remain in full force and effect regardless of any investigation made by or on behalf of the indemnified party or any officer, director or controlling person of such indemnified party and shall survive the transfer of securities.
The Company and each Holder of Registrable Securities participating in an offering also agrees to make such provisions as are reasonably requested by any indemnified party for contribution to such party in the event the Company’s or such
Holder’s indemnification is unavailable for any reason. 
 4.1.5 If the indemnification provided under
Section 4.1 hereof from the indemnifying party is unavailable or insufficient to hold harmless an indemnified party in respect of any losses, claims, damages, liabilities and out-of-pocket expenses referred to herein, then the indemnifying party, in lieu of indemnifying the indemnified party, shall contribute to the amount paid or payable by the indemnified party as a result of
such losses, claims, damages, liabilities and out-of-pocket expenses in such proportion as is appropriate to reflect the relative fault of the indemnifying party and the
indemnified party, as well as any other relevant equitable considerations. The relative fault of the indemnifying party and indemnified party shall be determined by reference to, among other things, whether any action in question, including any
untrue or alleged untrue statement of a material fact or omission or alleged omission to state a material fact, was made by, or relates to information supplied by, such indemnifying party or indemnified party, and the indemnifying party’s and
indemnified party’s relative intent, knowledge, access to information and opportunity to correct or prevent such action; provided, however, that the liability of any Holder 

  
 11 

 
under this subsection 4.1.5 shall be limited to the amount of the net proceeds received by such Holder in such offering giving rise to such liability. The amount paid or payable by a party
as a result of the losses or other liabilities referred to above shall be deemed to include, subject to the limitations set forth in subsections 4.1.1, 4.1.2 and 4.1.3 above, any legal or other fees, charges or out-of-pocket expenses reasonably incurred by such party in connection with any investigation or proceeding. The parties hereto agree that it would not be just and equitable
if contribution pursuant to this subsection 4.1.5 were determined by pro rata allocation or by any other method of allocation, which does not take account of the equitable considerations referred to in this subsection 4.1.5. No person
guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution pursuant to this subsection 4.1.5 from any person who was not guilty of such fraudulent
misrepresentation. 
 ARTICLE V 

MISCELLANEOUS 
 5.1
Notices. Any notice or communication under this Agreement must be in writing and given by (i) deposit in the United States mail, addressed to the party to be notified, postage prepaid and registered or certified with return receipt
requested, (ii) delivery in person or by courier service providing evidence of delivery, or (iii) transmission by hand delivery or electronic mail. Each notice or communication that is mailed, delivered, or transmitted in the manner
described above shall be deemed sufficiently given, served, sent, and received, in the case of mailed notices, on the third business day following the date on which it is mailed and, in the case of notices delivered by courier service, hand delivery
or electronic mail, at such time as it is delivered to the addressee (with the delivery receipt or the affidavit of messenger) or at such time as delivery is refused by the addressee upon presentation. Any notice or communication under this
Agreement must be addressed, if to the Company, to: 2850 W. Horizon Ridge Parkway, Suite 200, Henderson, NV 89052, Attention: Chief Financial Officer, and, if to any Holder, at such Holder’s address as set forth in the Company’s books and
records. Any party may change its address for notice at any time and from time to time by written notice to the other parties hereto, and such change of address shall become effective thirty (30) days after delivery of such notice as provided
in this Section 5.1. 
 5.2 Assignment; No Third Party Beneficiaries. 

5.2.1 This Agreement and the rights, duties and obligations of the Company hereunder may not be assigned or delegated by the Company in whole
or in part. 
 5.2.2 Prior to the expiration of the Founder Shares Lock-up Period or the Private
Placement Lock-up Period, as the case may be, no Holder may assign or delegate such Holder’s rights, duties or obligations under this Agreement, in whole or in part, except in connection with a transfer
of Registrable Securities by such Holder to a Permitted Transferee. 
 5.2.3 This Agreement and the provisions hereof shall be binding upon
and shall inure to the benefit of each of the parties and its successors and the permitted assigns of the Holders, which shall include Permitted Transferees. 

5.2.4 This Agreement shall not confer any rights or benefits on any persons that are not parties hereto, other than as expressly set forth in
this Agreement and Section 5.2. 
 5.2.5 No assignment by any party hereto of such party’s rights, duties and
obligations hereunder shall be binding upon or obligate the Company unless and until the Company shall have received (i) written notice of such assignment as provided in Section 5.1 and (ii) the written agreement
of the assignee, in a form reasonably satisfactory to the Company, to be bound by the terms and provisions of this Agreement (which may be accomplished by an addendum or certificate of joinder to this Agreement). Any transfer or assignment made
other than as provided in this Section 5.2 shall be null and void. 
 5.3 Counterparts. This Agreement may
be executed in multiple counterparts (including PDF counterparts), each of which shall be deemed an original, and all of which together shall constitute the same instrument, but only one of which need be produced. 

  
 12 

 5.4 Governing Law; Venue. NOTWITHSTANDING THE PLACE WHERE THIS AGREEMENT MAY BE
EXECUTED BY ANY OF THE PARTIES HERETO, THE PARTIES EXPRESSLY AGREE THAT THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED UNDER THE LAWS OF THE STATE OF NEW YORK AS APPLIED TO AGREEMENTS AMONG NEW YORK RESIDENTS ENTERED INTO AND TO BE PERFORMED
ENTIRELY WITHIN NEW YORK, WITHOUT REGARD TO THE CONFLICT OF LAW PROVISIONS OF SUCH JURISDICTION AND THE VENUE FOR ANY ACTION TAKEN WITH RESPECT TO THE AGREEMENT SHALL BE ANY STATE OR FEDERAL COURT IN NEW YORK COUNTY IN THE STATE OF NEW YORK. 

EACH PARTY HERETO ACKNOWLEDGES AND AGREES THAT ANY CONTROVERSY WHICH MAY ARISE UNDER THIS AGREEMENT IS LIKELY TO INVOLVE COMPLICATED AND
DIFFICULT ISSUES, AND, THEREFORE, EACH SUCH PARTY HEREBY IRREVOCABLY AND UNCONDITIONALLY WAIVES TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY RIGHT SUCH PARTY MAY HAVE TO A TRIAL BY JURY IN RESPECT TO ANY ACTION DIRECTLY OR INDIRECTLY
ARISING OUT OF, UNDER OR IN CONNECTION WITH OR RELATING TO THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED BY THIS AGREEMENT. 
 5.5
Amendments and Modifications. Upon the written consent of the Company and the Holders of at least a majority in interest of the Registrable Securities at the time in question, compliance with any of the provisions, covenants and conditions
set forth in this Agreement may be waived, or any of such provisions, covenants or conditions may be amended or modified; provided, however, that notwithstanding the foregoing, any amendment hereto or waiver hereof that adversely
affects one Holder, solely in his, her or its capacity as a holder of the shares of the Company, in a manner that is materially different from the other Holders (in such capacity) shall require the consent of the Holder so affected. No course of
dealing between any Holder or the Company and any other party hereto or any failure or delay on the part of a Holder or the Company in exercising any rights or remedies under this Agreement shall operate as a waiver of any rights or remedies of any
Holder or the Company. No single or partial exercise of any rights or remedies under this Agreement by a party shall operate as a waiver or preclude the exercise of any other rights or remedies hereunder or thereunder by such party. 

5.6 Other Registration Rights. The Company represents and warrants that no person, other than a Holder of Registrable Securities, has
any right to require the Company to register any securities of the Company for sale or to include such securities of the Company in any Registration filed by the Company for the sale of securities for its own account or for the account of any other
person. Further, the Company represents and warrants that this Agreement supersedes any other registration rights agreement or agreement with similar terms and conditions and in the event of a conflict between any such agreement or agreements and
this Agreement, the terms of this Agreement shall prevail. 
 5.7 Term. This Agreement shall terminate with respect to any Holder on
the date that such Holder no longer holds any Registrable Securities. The provisions of Section 3.5 and Article IV shall survive any termination. 

[Signature Page Follows] 

  
 13 

 IN WITNESS WHEREOF, the undersigned have caused this Agreement to be executed as of the date
first written above. 
  

			
	COMPANY:
	
	 SOCIAL CAPITAL SUVRETTA HOLDINGS CORP. III,

a Cayman Islands exempted company

		
	By:	 	 
		 	Name:
		 	Title:

  

			
	HOLDER:
	
	 SCS SPONSOR III LLC,
 a
Cayman Islands limited liability company

		
	By:	 	 
		 	Name:
		 	Title:

  
 [Signature Page to
Registration Rights Agreement] 

 
			
		
		 	 
		 	Name:

  
 [Signature Page to
Registration Rights Agreement] 

 
			
		
		 	 
		 	Name:

  
 [Signature Page to
Registration Rights Agreement]EX-10.5

 Exhibit 10.5 

SOCIAL CAPITAL SUVRETTA HOLDINGS CORP. III 

2850 W. Horizon Ridge Parkway, Suite 200, Henderson, NV 89052 

May 24, 2021 
 SCS Sponsor III LLC 

2850 W. Horizon Ridge Parkway, Suite 200 
 Henderson, NV 89052

 RE: Amended and Restated Securities Subscription Agreement 

Ladies and Gentlemen: 
 Pursuant to that certain
securities subscription agreement, dated as of March 2, 2021 (the “Original Agreement”), by and between Social Capital Suvretta Holdings Corp. III, a Cayman Islands exempted company (the “Company”), and SCS
Sponsor III LLC, a Cayman Islands limited liability company (the “Subscriber” or “you”), you subscribed for and purchased from the Company 5,750,000 Class B ordinary shares of the Company (the
“Shares”), of US$0.0001 par value per share (the “Class B Shares”), up to 750,000 of which are subject to forfeiture if the underwriter of the Company’s initial public offering of its
securities (“IPO”) do not fully exercise their over-allotment option (the “Over-allotment Option”). The Company and the Subscriber now desire to amend and restate the Original Agreement in its entirety as set forth
herein. 
 For the purposes of this amended and restated securities subscription agreement (this “Agreement”), references
to “Ordinary Shares” are to, collectively, the Class B Shares and the Company’s Class A ordinary shares, of US$0.0001 par value per share (the “Class A Shares”). Upon certain terms
and conditions, the Class B Shares will automatically convert into Class A Shares on a one-for-one basis, subject to adjustment. Unless the context otherwise
requires, as used herein “Shares” shall be deemed to include any Class A Shares issued upon conversion of the Class B Shares comprising the Shares. 

The terms of the issuance of the Shares to the Subscriber, and the Company and the Subscriber’s agreements regarding such Shares, are as
follows: 
  

	1.	 Subscription and Surrender of Shares. 

 

	 	1.1	 Subscription for Shares. On March 2, 2021, for the sum of US$25,000, which the Company acknowledges
receiving in cash, the Company issued the Shares to the Subscriber, and the Subscriber subscribed for and purchased the Shares from the Company, 750,000 of which are subject to forfeiture, on the terms and subject to the conditions set forth in this
Agreement. Concurrently with the Subscriber’s execution of the Original Agreement, the Company registered the Shares in the name of the Subscriber on the register of members of the Company. All references in this Agreement to Shares being
forfeited shall take effect as surrenders for no consideration of such Shares as a matter of Cayman Islands law. 

  

	 	1.2	 Surrender of Class B Share. Upon the issue of the Shares, the Subscriber surrendered
to the Company for cancellation and for no consideration one (1) Class B Share standing in its name in the register of members of the Company. 

  

	2.	 Representations, Warranties and Agreements. 

 

	 	2.1	 Subscriber’s Representations, Warranties and Agreements. To induce the Company to issue the Shares
to the Subscriber, the Subscriber hereby represents and warrants to the Company and agrees with the Company as follows as of the date of the Original Agreement and the date of this Agreement: 

 

	 	2.1.1	 No Government Recommendation or Approval. The Subscriber understands that no federal or state agency has
passed upon or made any recommendation or endorsement of the offering of the Shares. 

	 	2.1.2	 No Conflicts. The execution, delivery and performance of this Agreement and the consummation by the
Subscriber of the transactions contemplated hereby do not violate, conflict with or constitute a default under (i) the formation and governing documents of the Subscriber, (ii) any agreement, indenture or instrument to which the Subscriber
is a party or (iii) any law, statute, rule or regulation to which the Subscriber is subject, or any agreement, order, judgment or decree to which the Subscriber is subject. 

 

	 	2.1.3	 Registration and Authority. The Subscriber is a Cayman Islands limited liability company, validly
formed, registered and in good standing under the laws of the Cayman Islands and possesses all requisite power and authority necessary to execute and deliver this Agreement and to carry out the transactions contemplated by this Agreement. Upon
execution and delivery by you, this Agreement is a legal, valid and binding agreement of the Subscriber, enforceable against the Subscriber in accordance with its terms, except as such enforceability may be limited by applicable bankruptcy,
insolvency, fraudulent conveyance or similar laws affecting the enforcement of creditors’ rights generally and subject to general principles of equity (regardless of whether enforcement is sought in a proceeding at law or in equity).

  

	 	2.1.4	 Experience, Financial Capability and Suitability. The Subscriber is: (i) sophisticated in financial
matters and able to evaluate the risks and benefits of the investment in the Shares and (ii) able to bear the economic risk of its investment in the Shares for an indefinite period of time because the Shares have not been registered under the
Securities Act (as defined below) and therefore cannot be sold unless such transaction is registered under the Securities Act or an exemption from such registration is available. The Subscriber is capable of evaluating the merits and risks of its
investment in the Company and has the capacity to protect its own interests. The Subscriber must bear the economic risk of this investment until the Shares are sold pursuant to: (i) an effective registration statement under the Securities Act
or (ii) an exemption from registration available with respect to such sale. The Subscriber is able to bear the economic risks of an investment in the Shares and to afford a complete loss of the Subscriber’s investment in the Shares.

  

	 	2.1.5	 Access to Information; Independent Investigation. Prior to the execution of the Original Agreement, the
Subscriber had the opportunity to ask questions of and receive answers from representatives of the Company concerning an investment in the Company, as well as the finances, operations, business and prospects of the Company, and the opportunity to
obtain additional information to verify the accuracy of all information so obtained. In determining whether to make an investment in the Shares, the Subscriber has relied solely on the Subscriber’s own knowledge and understanding of the Company
and its business based upon the Subscriber’s own due diligence investigation and the information furnished pursuant to this Section 2. The Subscriber understands that no person has been authorized to give any information or to make any
representations which were not furnished pursuant to this Section 2 and the Subscriber has not relied on any other representations or information in making its investment decision, whether written or oral, relating to the Company, its
operations and/or its prospects. 

  

	 	2.1.6	 Private Placement. The Subscriber is an “accredited investor” as such term is defined in Rule
501(a) of Regulation D under the Securities Act of 1933, as amended (the “Securities Act”), and acknowledges that the sale contemplated hereby is being made in reliance on a private placement exemption applicable to “accredited
investors” within the meaning of Section 501(a) of Regulation D under the Securities Act or similar exemptions under state law. 

  
 -2- 

	 	2.1.7	 Investment Purposes. The Subscriber is purchasing the Shares solely for investment purposes, for the
Subscriber’s own account and not for the account or benefit of any other person, and not with a view towards the distribution or dissemination thereof. The Subscriber is not entering into this Agreement as a result of any general solicitation
or general advertising within the meaning of Rule 502 of Regulation D under the Securities Act. 

  

	 	2.1.8	 Restrictions on Transfer; Shell Company. The Subscriber understands the Shares are being offered in a
transaction not involving a public offering within the meaning of the Securities Act. The Subscriber understands that the Shares will be “restricted securities” within the meaning of Rule 144(a)(3) under the Securities Act and the
Subscriber understands that any certificates or book-entries representing the Shares will contain a legend in respect of such restrictions. If in the future the Subscriber decides to offer, resell, pledge or otherwise transfer the Shares, such
Shares may be offered, resold, pledged or otherwise transferred only pursuant to: (i) registration under the Securities Act, or (ii) an available exemption from registration. The Subscriber agrees that if any transfer of its Shares or any
interest therein is proposed to be made, as a condition precedent to any such transfer, the Subscriber may, at the Company’s option, be required to deliver to the Company an opinion of counsel satisfactory to the Company. Absent registration or
an exemption, the Subscriber agrees not to resell the Shares. The Subscriber further acknowledges that because the Company is a shell company, Rule 144 under the Securities Act (“Rule 144”) may not be available to the
Subscriber for the resale of the Shares until at least one (1) year following consummation of the initial business combination of the Company (which may not occur), despite technical compliance with the requirements of Rule 144 and the
release or waiver of any contractual transfer restrictions. 

  

	 	2.1.9	 No Governmental Consents. No governmental, administrative or other third party consents or approvals are
required, necessary or appropriate on the part of the Subscriber in connection with the transactions contemplated by this Agreement. 

  

	 	2.2	 Company’s Representations, Warranties and Agreements. To induce the Subscriber to subscribe for the
Shares, the Company hereby represents and warrants to the Subscriber and agrees with the Subscriber as follows as of the date of the Original Agreement and the date of this Agreement: 

 

	 	2.2.1	 Incorporation and Corporate Power. The Company is a Cayman Islands exempted company and is qualified to
do business in every jurisdiction in which the failure to so qualify would reasonably be expected to have a material adverse effect on the financial condition, operating results or assets of the Company. The Company possesses all requisite corporate
power and authority necessary to execute and deliver this Agreement and to carry out the transactions contemplated by this Agreement. Upon execution and delivery by the Company, this Agreement is a legal, valid and binding agreement of the Company,
enforceable against the Company in accordance with its terms, except as such enforceability may be limited by applicable bankruptcy, insolvency, fraudulent conveyance or similar laws affecting the enforcement of creditors’ rights generally and
subject to general principles of equity (regardless of whether enforcement is sought in a proceeding at law or in equity). 

  

	 	2.2.2	 No Conflicts. The execution, delivery and performance of this Agreement and the consummation by the
Company of the transactions contemplated hereby do not violate, conflict with or constitute a default under (i) the Company’s Memorandum and Articles of Association, as amended to the date hereof (the “Memorandum and
Articles”), (ii) any agreement, indenture or instrument to which the Company is a party or (iii) any law, statute, rule or regulation to which the Company is subject, or any agreement, order, judgment or decree to which the
Company is subject. 

  
 -3- 

	 	2.2.3	 Title to Shares. Upon issuance in accordance with, and payment pursuant to, the terms hereof and the
Memorandum and Articles, and registration in the register of members of the Company, the Shares will be duly and validly issued as fully paid and nonassessable. Upon issuance in accordance with, and payment pursuant to, the terms hereof and the
Memorandum and Articles, the Subscriber will have or receive good title to the Shares, free and clear of all liens, claims and encumbrances of any kind, other than (a) transfer restrictions hereunder and under the other agreements to which the
Shares may be subject, (b) transfer restrictions under federal and state securities laws, and (c) liens, claims or encumbrances imposed due to the actions of the Subscriber. 

 

	 	2.2.4	 No Adverse Actions. There are no actions, suits, investigations or proceedings pending, threatened
against or affecting the Company which: (i) seek to restrain, enjoin, prevent the consummation of or otherwise affect the transactions contemplated by this Agreement or (ii) question the validity or legality of any transactions or seek to
recover damages or to obtain other relief in connection with any transactions. 

  

	 	2.2.5	 Authorization. The Class A Shares issuable upon conversion of the Shares have been duly authorized
and reserved for issuance upon such conversion. 

  

	3.	 Forfeiture of Shares. 

 

	 	3.1	 Partial or No Exercise of the Over-allotment Option. In the event the Over-allotment Option granted to
the underwriter of the IPO is not exercised in full, the Subscriber acknowledges and agrees that it (or, if applicable, it and any transferees of Shares) shall, at the time such Over-allotment Option expires (or earlier if the underwriter of the IPO
waives its ability to exercise such Over-allotment Option), forfeit any and all rights to such number of Shares (up to an aggregate of 750,000 Shares and pro rata based upon the percentage of the Over-allotment Option exercised) such that
immediately following such forfeiture, the Subscriber (and any such transferees) will own an aggregate number of Shares equal to twenty-five percent (25%) of the number of Class A shares issued in the IPO (for the avoidance of doubt, excluding
any Class A shares issued pursuant to a private placement to occur concurrently with the closing of the IPO). Such forfeiture shall take effect as a surrender for no consideration as a matter of Cayman Islands law, and shall occur upon the
expiration of the Over-allotment Option. 

  

	 	3.2	 Termination of Rights as Shareholder. If any of the Shares are forfeited in accordance with this
Section 3, then after such time the Subscriber (or successor in interest), shall no longer have any rights as a holder of such forfeited Shares, and the Company shall take such action as is appropriate to cancel such forfeited Shares.

  

	4.	 Waiver of Liquidation Distributions; Redemption Rights. In connection with the purchase of the Shares
pursuant to this Agreement, the Subscriber hereby waives any and all right, title, interest or claim of any kind in or to any distributions by the Company from the trust account which will be established for the benefit of the Company’s public
shareholders and into which substantially all of the proceeds of the IPO will be deposited (the “Trust Account”), in the event of a liquidation of the Company upon the Company’s failure to timely complete an initial business
combination. For purposes of clarity, in the event the Subscriber purchases securities in the IPO or in the aftermarket, any Class A Shares so purchased shall be eligible to receive any liquidating distributions by the Company. However, in no
event will the Subscriber have the right to redeem any Ordinary Shares held by it for funds held in the Trust Account upon the successful completion of an initial business combination. 

 

	5.	 Restrictions on Transfer. 

 

	 	5.1	 Securities Law Restrictions. In addition to any restrictions to be contained in that certain agreement
(the “Letter Agreement”) to be entered into on or prior to the closing of the IPO by and among the Subscriber, the Company and the other parties thereto, the Subscriber agrees not to sell, transfer, pledge, hypothecate or otherwise
dispose of all or any part of the Shares unless, prior 

  
 -4- 

	 	
thereto (a) a registration statement on the appropriate form under the Securities Act and applicable state securities laws with respect to the Shares proposed to be transferred shall then be
effective or (b) the Company shall have received, if requested by the Company, an opinion from counsel reasonably satisfactory to the Company, that such registration is not required because such transaction is exempt from registration under the
Securities Act and the rules promulgated by the Securities and Exchange Commission thereunder and with all applicable state securities laws. 

  

	 	5.2	 Lock-up. The Subscriber acknowledges that the Shares will be
subject to lock-up provisions (the “Lock-up”) contained in the Letter Agreement. Pursuant to the Letter Agreement, the Subscriber will agree (subject to
certain customary exceptions) not to sell, transfer, pledge, hypothecate or otherwise dispose of all or any part of the Shares until the earlier to occur of: (A) one year after the completion of the Company’s initial business combination
and (B) subsequent to the Company’s initial business combination, (x) if the last reported sale price of the Class A Shares equals or exceeds US$12.00 per share (as adjusted for share
sub-divisions, share capitalizations, rights issuances, subdivisions, reorganizations, recapitalizations and the like) for any twenty (20) trading days within any thirty (30)-trading day period commencing
at least one hundred and fifty (150) days after the Company’s initial business combination or (y) the date following the completion of the Company’s initial business combination on which the Company completes a liquidation,
merger, share exchange, reorganization or other similar transaction that results in all of the Company’s shareholders having the right to exchange their Class A Shares for cash, securities or other property. 

 

	 	5.3	 Restrictive Legends. Any certificates representing the Shares shall have endorsed thereon legends
substantially as follows: 

 “THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE UNITED STATES
SECURITIES ACT OF 1933, AS AMENDED, OR ANY STATE SECURITIES LAWS AND NEITHER THE SECURITIES NOR ANY INTEREST THEREIN MAY BE OFFERED, SOLD, TRANSFERRED, PLEDGED OR OTHERWISE DISPOSED OF EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT
UNDER SUCH ACT OR SUCH LAWS OR AN EXEMPTION FROM REGISTRATION UNDER SUCH ACT AND SUCH LAWS WHICH, IN THE OPINION OF COUNSEL (IF THE COMPANY SO REQUESTS), IS AVAILABLE.” 

“THE SECURITIES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO LOCKUP PROVISIONS AND MAY NOT BE OFFERED, SOLD, TRANSFERRED,
PLEDGED OR OTHERWISE DISPOSED DURING THE TERM OF THE LOCKUP PERIOD.” 
  

	 	5.4	 Additional Shares or Substituted Securities. In the event of the declaration of a share capitalization,
the declaration of an extraordinary dividend payable in a form other than Ordinary Shares, a spin-off, a share sub-division, an adjustment in conversion ratio, a
recapitalization or a similar transaction affecting the Company’s outstanding Ordinary Shares without receipt of consideration, any new, substituted or additional securities or other property which are by reason of such transaction distributed
with respect to any Shares subject to this Section 5.4 or into which such Shares thereby become convertible shall immediately be subject to this Section 5.4 and Section 3. Appropriate adjustments to reflect the distribution of such
securities or property shall be made to the number and/or class of Ordinary Shares subject to this Section 5.4 and Section 3. 

  

	 	5.5	 Registration Rights. The Subscriber acknowledges that the Shares are being purchased pursuant to an
exemption from the registration requirements of the Securities Act and will become freely tradable, subject to the Lock-up, only after certain conditions are met or they are registered pursuant to a
registration rights agreement to be entered into with the Company prior to the closing of the IPO (the “Registration Rights Agreement”). 

  
 -5- 

	6.	 Voting and Tender of Shares. The Subscriber agrees to vote the Shares in favor of an initial business
combination that the Company negotiates and submits for approval to the Company’s shareholders and shall not seek redemption or repurchase with respect to any of the Shares in connection with an initial business combination or any amendment to
the Memorandum and Articles, as amended, prior to an initial business combination. Additionally, the Subscriber agrees not to tender any Shares in connection with a tender offer presented to the Company’s shareholders in connection with an
initial business combination negotiated by the Company. 

  

	7.	 Indemnification. Each party shall indemnify the other against any losses, costs or damages (including
reasonable attorney’s fees and expenses) incurred as a result of such party’s breach of any representation, warranty, covenant or agreement in this Agreement. 

 

	8.	 Other Agreements. 

 

	 	8.1	 Further Assurances. Each of the Subscriber and the Company agrees to execute such further instruments
and to take such further action as may reasonably be necessary to carry out the intent of this Agreement. 

  

	 	8.2	 Notices. All notices, statements or other documents which are required or contemplated by this Agreement
shall be in writing and delivered (i) personally or sent by first class registered or certified mail, overnight courier service or electronic transmission to the address designated in writing or (ii) by electronic mail, to the electronic
mail address most recently provided to such party or such other electronic mail address as may be designated in writing by such party. Any notice or other communication so transmitted shall be deemed to have been given on the day of delivery, if
delivered personally, on the business day following receipt of written confirmation, if sent by electronic transmission, one (1) business day after delivery to an overnight courier service or five (5) days after mailing if sent by mail.

  

	 	8.3	 Entire Agreement. This Agreement, together with the Letter Agreement and the Registration Rights
Agreement, each substantially in the form to be filed as an exhibit to the Company’s registration statement on Form S-1 relating to the IPO, embodies the entire agreement and understanding between the
Subscriber and the Company with respect to the subject matter hereof and supersedes all prior oral or written agreements and understandings relating to the subject matter hereof. No statement, representation, warranty, covenant or agreement of any
kind not expressly set forth in this Agreement shall affect, or be used to interpret, change or restrict, the express terms and provisions of this Agreement. 

  

	 	8.4	 Modifications and Amendments. The terms and provisions of this Agreement may be modified or amended only
by written agreement executed by each party hereto. 

  

	 	8.5	 Waivers and Consents. The terms and provisions of this Agreement may be waived, or consent for the
departure therefrom granted, only by written instrument executed by the party entitled to the benefit of such terms or provisions. No such waiver or consent shall be deemed to be or shall constitute a waiver or consent with respect to any other
terms or provisions of this Agreement, whether or not similar. Each such waiver or consent shall be effective only in the specific instance and for the purpose for which it was given, and shall not constitute a continuing waiver or consent.

  

	 	8.6	 Assignment. The rights and obligations under this Agreement may not be assigned by either party hereto
without the prior written consent of the other party. 

  

	 	8.7	 Benefit. All statements, representations, warranties, covenants and agreements in this Agreement shall
be binding on the parties hereto and shall inure to the benefit of the respective successors and permitted assigns of each party hereto. Nothing in this Agreement shall be construed to create any rights or obligations except among the parties
hereto, and no person or entity shall be regarded as a third-party beneficiary of this Agreement. 

  
 -6- 

	 	8.8	 Governing Law. This Agreement and the rights and obligations of the parties hereunder shall be construed
in accordance with and governed by the laws of the State of New York, without giving effect to the conflict of laws principles thereof. 

  

	 	8.9	 Severability. In the event that any court of competent jurisdiction shall determine that any provision,
or any portion thereof, contained in this Agreement shall be unreasonable or unenforceable in any respect, then such provision shall be deemed limited to the extent that such court deems it reasonable and enforceable, and as so limited shall remain
in full force and effect. In the event that such court shall deem any such provision, or portion thereof, wholly unenforceable, the remaining provisions of this Agreement shall nevertheless remain in full force and effect. 

 

	 	8.10	 No Waiver of Rights, Powers and Remedies. No failure or delay by a party hereto in exercising any right,
power or remedy under this Agreement, and no course of dealing between the parties hereto, shall operate as a waiver of any such right, power or remedy of such party. No single or partial exercise of any right, power or remedy under this Agreement
by a party hereto, nor any abandonment or discontinuance of steps to enforce any such right, power or remedy, shall preclude such party from any other or further exercise thereof or the exercise of any other right, power or remedy hereunder. The
election of any remedy by a party hereto shall not constitute a waiver of the right of such party to pursue other available remedies. No notice to or demand on a party not expressly required under this Agreement shall entitle the party receiving
such notice or demand to any other or further notice or demand in similar or other circumstances or constitute a waiver of the rights of the party giving such notice or demand to any other or further action in any circumstances without such notice
or demand. 

  

	 	8.11	 Survival of Representations and Warranties. All representations and warranties made by the parties
hereto and agreements contained in this Agreement or in any other agreement, certificate or instrument provided for or contemplated hereby shall survive the execution and delivery hereof and any investigations made by or on behalf of the parties.

  

	 	8.12	 No Broker or Finder. Each of the parties hereto represents and warrants to the other that no broker,
finder or other financial consultant has acted on its behalf in connection with this Agreement or the transactions contemplated hereby in such a way as to create any liability on the other. Each of the parties hereto agrees to indemnify and hold
harmless the other from any claim or demand for commission or other compensation by any broker, finder, financial consultant or similar agent claiming to have been employed by or on behalf of such party and to bear the cost of legal expenses
incurred in defending against any such claim. 

  

	 	8.13	 Headings and Captions. The headings and captions of the various sections of this Agreement are for
convenience of reference only and shall in no way modify or affect the meaning or construction of any of the terms or provisions hereof. 

  

	 	8.14	 Counterparts. This Agreement may be executed in one or more counterparts, all of which when taken
together shall be considered one and the same agreement and shall become effective when counterparts have been signed by each party and delivered to the other party, it being understood that both parties need not sign the same counterpart. In the
event that any signature is delivered by facsimile transmission or any other form of electronic delivery, such signature shall create a valid and binding obligation of the party executing (or on whose behalf such signature is executed) with the same
force and effect as if such signature page were an original thereof. 

  

	 	8.15	 Construction. The words “include,” “includes,” and “including” will be
deemed to be followed by “without limitation.” Pronouns in masculine, feminine and neuter genders will be construed to include any other gender, and words in the singular form will be construed to include the plural and vice versa, unless
the context otherwise requires. The words “this Agreement,” “herein,” “hereof,” “hereby,” “hereunder” and words of similar import refer to this Agreement as a whole and not to any particular section
unless expressly so limited. The parties hereto intend that each 

  
 -7- 

	 	
representation, warranty, and covenant contained herein will have independent significance. If any party hereto has breached any representation, warranty, or covenant contained herein in any
respect, the fact that there exists another representation, warranty or covenant relating to the same subject matter (regardless of the relative levels of specificity) which such party hereto has not breached will not detract from or mitigate the
fact that such party hereto is in breach of the first representation, warranty, or covenant. 

  

	 	8.16	 Mutual Drafting. The parties hereto have participated jointly in the negotiation and drafting of this
Agreement. If an ambiguity or question of intent or interpretation arises, this Agreement will be construed as if drafted jointly by the parties hereto and no presumption or burden of proof will arise favoring or disfavoring any party hereto because
of the authorship of any provision of this Agreement. 

 [Signature Page Follows] 

  
 -8- 

 If the foregoing accurately sets forth our understanding and agreement, please sign the
enclosed copy of this Agreement and return it to us. 
  

			
	Very truly yours,
	
	SOCIAL CAPITAL SUVRETTA HOLDINGS CORP. III
		
	By:	 	/s/ Chamath Palihapitiya
		 	Name: Chamath Palihapitiya
		 	Title: Chief Executive Officer

  

			
	SCS SPONSOR III LLC
		
	By:	 	/s/ Chamath Palihapitiya
	Name:	 	Chamath Palihapitiya
	Title:	 	Chief Executive Officer

  
 [Signature Page to
Amended and Restated Securities Subscription Agreement]

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