Sec Form 4 Filing - DOYLE WILLIAM F @ PROKIDNEY CORP. - 2022-07-11

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person DOYLE WILLIAM F 2. Issuer Name and Ticker or Trading Symbol PROKIDNEY CORP. [ PROK] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O PROKIDNEY CORP, 2000 FRONTIS PLAZA BOULEVARD, SUITE 250 3. Date of Earliest Transaction (MM/DD/YY) 07/11/2022 (Street) WINSTON-SALEM, NC27103 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Class B Ordinary Shares ( 1 )( 2 ) 07/11/2022 A 1,514,326 ( 2 ) ( 2 ) Class A Ordinary Shares 1,514,326 $ 0 1,514,326 D Common Units in ProKidney LP( 3 ) ( 3 )( 4 ) 07/11/2022 A 1,514,326 ( 4 ) ( 4 ) Class A Ordinary Shares 1,514,326 $ 0 1,514,326 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other DOYLE WILLIAM F C/O PROKIDNEY CORP 2000 FRONTIS PLAZA BOULEVARD, SUITE 250 WINSTON-SALEM, NC27103 X Signatures /s/ Todd Girolamo as Attorney-in-Fact for William F Doyle 07/13/2022 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Each Class B Ordinary Share has no economic rights but entitles the reporting person to vote on all matters on which shareholders of the issuer vote and may, at the election of the reporting person and subject to the limitations set forth in the Exchange Agreement and the Second Amended and Restated Company Partnership Agreement (each as defined and as described in the issuer's Definitive Proxy Statement filed with the Securities and Exchange Commission on June 10, 2022), be exchanged, together with the paired Common Unit in ProKidney LP ("ProKidney") (a "Common Unit"), for a Class A Ordinary Share on a one-for-one basis. ( 2 )These 1,350,469 Class B Ordinary Shares and 163,857 Restricted Stock Rights in respect of Class B Ordinary Shares ("Class B PMEL RSRs") were received pursuant to the terms of the Business Combination Agreement by and between the issuer and ProKidney, dated as of January 18, 2022 (the "Business Combination Agreement") in exchange for historical interests held by the reporting person in ProKidney. The Class B PMEL RSRs vest in installments over a period through January 17, 2025, and upon vesting are immediately settled as Class B Ordinary Shares. The Class B Ordinary Shares and Class B PMEL RSRs do not expire. ( 3 )Each Common Unit may, at the election of the reporting person and subject to the limitations set forth in the Exchange Agreement and the Second Amended and Restated Company Partnership Agreement, be exchanged, together with the paired Class B Ordinary Share, into a Class A Ordinary Share on a one-for-one basis. ( 4 )These 1,350,469 Common Units and 163,857 Restricted Common Units of ProKidney Equity LLC that upon vesting will settle in Common Units ("PMEL RCUs") were received pursuant to the terms of the Business Combination Agreement in exchange for historical interests held by the reporting person in ProKidney. The PMEL RCUs vest in installments over a period through January 17, 2025. The Common Units and the PMEL RCUs do not expire.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

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