X0508 4 2025-07-28 0000882095 GILEAD SCIENCES, INC. GILD 0001638643 O'Day Daniel Patrick 333 LAKESIDE DRIVE FOSTER CITY CA 94404 1 1 Chairman & CEO 1 Common Stock 2025-07-28 4 S 0 1655 113.1678 D 614070 D Common Stock 2025-07-28 4 S 0 8345 114.0895 D 605725 D The transaction reported in this Form 4 is made pursuant to a Rule 10b5-1 trading plan adopted on February 28, 2025. Sale prices reported for the transactions reported here range from $112.71 to $113.59. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer or its shareowners upon request. Sale prices reported for the transactions reported here range from $113.71 to $114.56. Full information regarding the number of shares purchased or sold at each separate price will be provided to the SEC, the issuer or its shareowners upon request. /s/ Edward S. Son by Power of Attorney for Daniel P. O'Day 2025-07-29