X0306 4 2022-02-02 0001822691 GreenLight Biosciences Holdings, PBC GRNA 0001908352 Ortega-Valle Marta C/O GREENLIGHT BIOSCIENCES HOLDINGS, PBC 200 BOSTON AVENUE, SUITE 3100 MEDFORD MA 02155 0 1 0 0 Chief Business Officer Stock Option (Right to Buy) 0.24 2022-02-02 4 A 0 29798 A 2022-06-08 Common Stock 29798 29798 D Stock Option (Right to Buy) 0.28 2022-02-02 4 A 0 105266 A 2023-12-13 Common Stock 105266 105266 D Stock Option (Right to Buy) 0.35 2022-02-02 4 A 0 106098 A 2025-07-22 Common Stock 106098 106098 D Stock Option (Right to Buy) 0.98 2022-02-02 4 A 0 247727 A 2030-09-24 Common Stock 247727 247727 D Stock Option (Right to Buy) 0.98 2022-02-02 4 A 0 259584 A 2030-12-01 Common Stock 259584 259584 D 100% of the shares subject to this option are fully vested and exercisable. This option was issued pursuant to the terms of a business combination agreement involving the Issuer and GreenLight Biosciences, Inc. in exchange for a comparable option previously issued by such company. 100% of the shares subject to this option are fully vested and exercisable. 100% of the shares subject to this option are fully vested and exercisable. 20% of the shares underlying the option vested or shall vest on September 24, 2021 and the remainder of the shares vested or shall vest in 48 equal monthly installments thereafter, starting October 24, 2021. 25% of the shares underlying the option vested or shall vest on December 1, 2021 and the remainder of the shares vested or shall vest in 36 equal monthly installments thereafter, starting January 1, 2022. /s/ David Kennedy, Attorney-in-fact 2022-02-04