X0306 4/A 2018-02-20 2018-02-22 0 0001200375 CODEXIS INC CDXS 0001243383 SANGSTER GORDON C/O CODEXIS, INC. 200 PENOBSCOT DRIVE REDWOOD CITY CA 94063 0 1 0 0 SVP & Chief Financial Officer Stock Option (Right to Buy) 8.95 2018-02-20 4 A 0 60000 0.00 A 2028-02-20 Common Stock 60000 60000 D The original filing inadvertently reported an incorrect grant date, expiration date, vesting schedule and exercise price for the option. Option vests with respect to 25% of the shares subject thereto on February 20, 2019, with 1/48th of the shares vesting monthly thereafter, such that the option will be fully vested and exercisable on February 20, 2022. /s/ Gordon Sangster 2018-02-23