X0306 4 2022-03-10 0000882095 GILEAD SCIENCES, INC. GILD 0001792150 Parsey Merdad GILEAD SCIENCES, INC. 333 LAKESIDE DRIVE FOSTER CITY CA 94404 1 Chief Medical Officer Common Stock 2022-03-10 4 M 0 3455 A 40613 D Common Stock 2022-03-10 4 M 0 4157 A 44770 D Common Stock 2022-03-10 4 F 0 3505 57.92 D 41265 D Restricted Stock Unit 2022-03-10 4 M 0 3455 D Common Stock 3455 28634 D Restricted Stock Unit 2022-03-10 4 M 0 4157 D Common Stock 4157 24477 D Restricted Stock Unit 2022-03-10 4 A 0 27840 A Common Stock 27840 52317 D Non-qualified Stock Option (Right to Buy) 57.92 2022-03-10 4 A 0 171670 0 A 2032-03-10 Common Stock 171670 171670 D Each restricted stock unit represents the contingent right to receive one share of Gilead Sciences, Inc.'s common stock. The restricted stock units have a four-year vesting schedule. 25% vest on each yearly anniversary of the date of grant until fully vested. The restricted stock units have a four-year vesting schedule. 25% vest on the first anniversary of the date of grant. The balance will vest 6.25% quarterly thereafter until fully vested. The shares subject to the option have a four-year vesting schedule. 25% vest on the first anniversary of the date of the grant. The balance will vest 6.25% quarterly thereafter until fully vested. /s/ Amy Kim by Power of Attorney for Merdad Parsey 2022-03-14