X0306 4 2020-02-11 0 0001200375 CODEXIS, INC. CDXS 0001646304 TAYLOR DEAN ROSS JR C/O CODEXIS, INC. 200 PENOBSCOT DRIVE REDWOOD CITY CA 94063 0 1 0 0 Chief Financial Officer Common Stock 2020-02-11 4 A 0 8000 0.00 A 8000 D Stock Option (Right to Buy) 14.43 2020-02-11 4 A 0 15000 0.00 A 2030-02-11 Common Stock 15000 15000 D Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Codexis common stock. RSUs vest 1/3 annually from February 11, 2020 such that the RSUs will be fully vested on February 11, 2023. Option vests with respect to 25% of the shares subject thereto on February 11, 2021, with 1/48th of the shares vesting monthly thereafter, such that the option will be fully vested and exercisable on February 11, 2024. /s/ Ross Taylor 2020-02-13