X0206 3 2022-02-02 0 0001822691 GreenLight Biosciences Holdings, PBC GRNA 0001543112 Morningside Venture Investments Ltd C/O THC MANAGEMENT SERVICES S.A.M. 3-5 AVENUE DES CITRONNIERS MONACO O9 MC 98000 MONACO 0 0 1 0 0001914583 MVIL, LLC C/O 22ND FLOOR, HANG LUNG CENTRE 2-20 PATERSON ST. CAUSEWAY BAY, HONG KONG K3 HONG KONG 0 0 1 0 Class A Common Stock Common Stock 12857931 D Class A Common Stock Common Stock 1000000 D The shares of Class A common stock automatically convert into the same number of shares of the Issuer's Common Stock without payment or further consideration in connection with the closing of the Issuer's business combination transaction. The Class A Common Stock has no expiration date. Frances Anne Elizabeth Richard, Jill Marie Franklin, Peter Stuart Allenby Edwards and Cheung Ka Ho are the directors of Morningside and share voting and dispositive power with respect to the securities held by Morningside Venture Investments Limited ("Morningside") and MVIL, LLC ("MVIL LLC"), Morningside's wholly-owned subsidiary. Ms. Richard, Ms. Franklin, Mr. Edwards and Mr. Cheung each disclaim ownership of the securities owned by Morningside and MVIL LLC. Cheng Yee Wing Betty and Wong See Wai are the managers of MVIL and share voting and dispositive power with respect to the securities held by MVIL LLC. Ms. Cheng and Mr. Wong each disclaim ownership of the securities owned by MVIL LLC. Represent shares held by MVIL, LLC. The Reporting Persons are jointly filing this Form 3 pursuant to Rule 16a-3(j) under the Securities Exchange Act of 1934. /s/ Frances Anne Elizabeth Richards, for Morningside Venture Investments Limited 2022-03-17 /s/ Chen Yee Wing Betty, for MVIL LLC 2022-03-17