Daniel O'Day's Insider Trades & SAST Disclosures

Daniel O'Day's most recent trade in Gilead Sciences, Inc. was a trade of 10,000 Common Stock done at an average price of $136.8 . Disclosure was reported to the exchange on March 27, 2026.

Stock Client Name Client Category Action Reported to Exchange Quantity Post Transaction Holding Traded % Avg. Price Value Security Type
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Sale of securities on an exchange or to another person at price $ 136.82 per share. 27 Mar 2026 10,000 642,567 (0%) 0% 136.8 1,368,162 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 10 Mar 2026 122,755 122,755 - - Non-qualified Stock Option (Right to Buy)
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 10 Mar 2026 32,815 100,859 - - Restricted Stock Unit
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Mar 2026 20,026 68,044 - - Restricted Stock Unit
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Mar 2026 20,026 662,334 (0%) 0% - Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Payment of exercise price or tax liability using portion of securities received from the company at price $ 148.56 per share. 10 Mar 2026 9,767 652,567 (0%) 0% 148.6 1,450,986 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 05 Feb 2026 115,640 0 - - Non-qualified Stock Option (Right to Buy)
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Sale of securities on an exchange or to another person at price $ 150.00 per share. 05 Feb 2026 115,640 613,912 (0%) 0% 150 17,346,000 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 66.01 per share. 05 Feb 2026 115,640 729,552 (0%) 0% 66.0 7,633,396 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 03 Feb 2026 131,675 688,373 (0%) 0% 0 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Payment of exercise price or tax liability using portion of securities received from the company at price $ 143.28 per share. 03 Feb 2026 74,461 613,912 (0%) 0% 143.3 10,668,772 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Sale of securities on an exchange or to another person at price $ 139.54 per share. 28 Jan 2026 5,032 561,666 (0%) 0% 139.5 702,186 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Sale of securities on an exchange or to another person at price $ 140.24 per share. 28 Jan 2026 4,968 556,698 (0%) 0% 140.2 696,725 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 66.01 per share. 23 Jan 2026 115,640 682,338 (0%) 0% 66.0 7,633,396 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 23 Jan 2026 115,640 115,640 - - Non-qualified Stock Option (Right to Buy)
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Sale of securities on an exchange or to another person at price $ 135.00 per share. 23 Jan 2026 115,640 566,698 (0%) 0% 135 15,611,400 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Sale of securities on an exchange or to another person at price $ 124.83 per share. 29 Dec 2025 10,000 566,698 (0%) 0% 124.8 1,248,272 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Dec 2025 10,426 88,070 - - Restricted Stock Unit
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Dec 2025 10,426 581,629 (0%) 0% - Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Payment of exercise price or tax liability using portion of securities received from the company at price $ 121.34 per share. 10 Dec 2025 4,931 576,698 (0%) 0% 121.3 598,328 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Sale of securities on an exchange or to another person at price $ 126.84 per share. 28 Nov 2025 6,788 571,203 (0%) 0% 126.8 861,016 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Sale of securities on an exchange or to another person at price $ 125.91 per share. 28 Nov 2025 3,212 577,991 (0%) 0% 125.9 404,428 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Sale of securities on an exchange or to another person at price $ 119.54 per share. 28 Oct 2025 7,978 583,225 (0%) 0% 119.5 953,667 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Sale of securities on an exchange or to another person at price $ 118.82 per share. 28 Oct 2025 2,022 581,203 (0%) 0% 118.8 240,259 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Sale of securities on an exchange or to another person at price $ 111.47 per share. 29 Sep 2025 8,039 593,164 (0%) 0% 111.5 896,110 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Sale of securities on an exchange or to another person at price $ 112.42 per share. 29 Sep 2025 1,961 591,203 (0%) 0% 112.4 220,454 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Sep 2025 10,427 606,152 (0%) 0% - Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Sep 2025 10,427 98,496 - - Restricted Stock Unit
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Payment of exercise price or tax liability using portion of securities received from the company at price $ 115.25 per share. 10 Sep 2025 4,949 601,203 (0%) 0% 115.2 570,372 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Sale of securities on an exchange or to another person at price $ 113.63 per share. 28 Aug 2025 10,000 595,725 (0%) 0% 113.6 1,136,300 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Sale of securities on an exchange or to another person at price $ 114.09 per share. 28 Jul 2025 8,345 605,725 (0%) 0% 114.1 952,077 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Sale of securities on an exchange or to another person at price $ 113.17 per share. 28 Jul 2025 1,655 614,070 (0%) 0% 113.2 187,293 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Sale of securities on an exchange or to another person at price $ 110.40 per share. 30 Jun 2025 9,400 616,325 (0%) 0% 110.4 1,037,796 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Sale of securities on an exchange or to another person at price $ 111.15 per share. 30 Jun 2025 600 615,725 (0%) 0% 111.1 66,688 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Jun 2025 10,425 108,923 - - Restricted Stock Unit
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Jun 2025 10,425 630,693 (0%) 0% - Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Payment of exercise price or tax liability using portion of securities received from the company at price $ 110.09 per share. 10 Jun 2025 4,968 625,725 (0%) 0% 110.1 546,927 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Sale of securities on an exchange or to another person at price $ 110.11 per share. 30 May 2025 6,416 623,852 (0%) 0% 110.1 706,497 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Sale of securities on an exchange or to another person at price $ 110.96 per share. 30 May 2025 3,584 620,268 (0%) 0% 111.0 397,696 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 10 Mar 2025 169,690 169,690 - - Non-qualified Stock Option (Right to Buy)
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 10 Mar 2025 38,395 119,348 - - Restricted Stock Unit
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Mar 2025 24,024 80,953 - - Restricted Stock Unit
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Mar 2025 24,024 641,900 (0%) 0% - Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Payment of exercise price or tax liability using portion of securities received from the company at price $ 117.21 per share. 10 Mar 2025 11,632 630,268 (0%) 0% 117.2 1,363,387 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 04 Feb 2025 164,473 726,032 (0%) 0% 0 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Payment of exercise price or tax liability using portion of securities received from the company at price $ 97.99 per share. 04 Feb 2025 108,156 617,876 (0%) 0% 98.0 10,598,206 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 04 Feb 2025 60,031 561,559 (0%) 0% 0 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Dec 2024 10,295 506,290 (0%) 0% - Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Dec 2024 10,295 104,977 - - Restricted Stock Unit
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Payment of exercise price or tax liability using portion of securities received from the company at price $ 92.34 per share. 10 Dec 2024 4,762 501,528 (0%) 0% 92.3 439,723 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Sep 2024 10,295 500,744 (0%) 0% - Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Sep 2024 10,295 115,272 - - Restricted Stock Unit
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Payment of exercise price or tax liability using portion of securities received from the company at price $ 81.44 per share. 10 Sep 2024 4,749 495,995 (0%) 0% 81.4 386,759 Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Jun 2024 10,295 125,567 - - Restricted Stock Unit
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Jun 2024 10,295 495,142 (0%) 0% - Common Stock
Gilead Sciences
Daniel P. O'Day Director, Chairman & CEO Payment of exercise price or tax liability using portion of securities received from the company at price $ 65.25 per share. 10 Jun 2024 4,693 490,449 (0%) 0% 65.2 306,218 Common Stock
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 10 Mar 2024 279,130 279,130 - - Non-qualified Stock Option (Right to Buy)
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 10 Mar 2024 54,910 135,862 - - Restricted Stock Unit
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Mar 2024 19,140 80,952 - - Restricted Stock Unit
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Mar 2024 19,140 498,629 (0%) 0% - Common Stock
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Payment of exercise price or tax liability using portion of securities received from the company at price $ 75.12 per share. 10 Mar 2024 13,782 484,847 (0%) 0% 75.1 1,035,304 Common Stock
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Mar 2024 10,800 479,489 (0%) 0% - Common Stock
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Mar 2024 10,800 100,092 - - Restricted Stock Unit
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 31 Jan 2024 179,877 548,024 (0%) 0% 0 Common Stock
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Payment of exercise price or tax liability using portion of securities received from the company at price $ 78.26 per share. 31 Jan 2024 79,335 468,689 (0%) 0% 78.3 6,208,757 Common Stock
Gilead Sciences
O'Day Daniel Director, Chairman & CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 31 Jan 2024 50,870 368,147 (0%) 0% 0 Common Stock
Gilead Sciences
O'Day Daniel Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Dec 2023 7,347 391,032 (0%) 0% - Common Stock
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Dec 2023 7,347 110,892 - - Restricted Stock Unit
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Payment of exercise price or tax liability using portion of securities received from the company at price $ 79.02 per share. 10 Dec 2023 3,341 387,691 (0%) 0% 79.0 264,006 Common Stock
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Jun 2023 7,346 125,587 - - Restricted Stock Unit
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Jun 2023 7,346 269,534 (0%) 0% - Common Stock
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Payment of exercise price or tax liability using portion of securities received from the company at price $ 78.12 per share. 10 Jun 2023 3,409 266,125 (0%) 0% 78.1 266,311 Common Stock
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 10 Mar 2023 215,095 215,095 - - Non-qualified Stock Option (Right to Buy)
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 10 Mar 2023 47,170 132,933 - - Restricted Stock Unit
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Mar 2023 19,488 96,563 - - Restricted Stock Unit
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Mar 2023 19,488 378,983 (0%) 0% - Common Stock
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Payment of exercise price or tax liability using portion of securities received from the company at price $ 79.50 per share. 10 Mar 2023 14,017 375,766 (0%) 0% 79.5 1,114,352 Common Stock
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Mar 2023 10,800 389,783 (0%) 0% - Common Stock
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Mar 2023 10,800 85,763 - - Restricted Stock Unit
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 01 Mar 2023 11,362 116,051 - - Restricted Stock Unit
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 01 Mar 2023 11,362 364,337 (0%) 0% - Common Stock
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Payment of exercise price or tax liability using portion of securities received from the company at price $ 79.59 per share. 01 Mar 2023 4,842 359,495 (0%) 0% 79.6 385,375 Common Stock
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 24 Jan 2023 136,647 412,053 (0%) 0% 0 Common Stock
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 24 Jan 2023 78,370 275,406 (0%) 0% 0 Common Stock
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Payment of exercise price or tax liability using portion of securities received from the company at price $ 84.02 per share. 24 Jan 2023 59,078 352,975 (0%) 0% 84.0 4,963,734 Common Stock
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Dec 2022 3,300 127,413 - - Restricted Stock Unit
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Dec 2022 3,300 256,178 (0%) 0% - Common Stock
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Payment of exercise price or tax liability using portion of securities received from the company at price $ 87.97 per share. 10 Dec 2022 1,542 254,636 (0%) 0% 88.0 135,650 Common Stock
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Sep 2022 3,301 254,406 (0%) 0% - Common Stock
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Sep 2022 3,301 130,713 - - Restricted Stock Unit
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Payment of exercise price or tax liability using portion of securities received from the company at price $ 65.28 per share. 10 Sep 2022 1,528 252,878 (0%) 0% 65.3 99,748 Common Stock
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Jun 2022 3,300 134,014 - - Restricted Stock Unit
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Jun 2022 3,300 252,644 (0%) 0% - Common Stock
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Payment of exercise price or tax liability using portion of securities received from the company at price $ 60.74 per share. 10 Jun 2022 1,539 251,105 (0%) 0% 60.7 93,479 Common Stock
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 10 Mar 2022 399,235 399,235 - - Non-qualified Stock Option (Right to Buy)
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 10 Mar 2022 64,745 137,314 - - Restricted Stock Unit
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Mar 2022 13,203 72,569 - - Restricted Stock Unit
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Mar 2022 13,203 260,396 (0%) 0% 0 Common Stock
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Payment of exercise price or tax liability using portion of securities received from the company at price $ 57.92 per share. 10 Mar 2022 11,052 249,344 (0%) 0% 57.9 640,132 Common Stock
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Mar 2022 10,800 247,193 (0%) 0% 0 Common Stock
Gilead Sciences
Daniel O'Day Director, Chairman & CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 10 Mar 2022 10,800 85,772 - - Restricted Stock Unit
*All Values are in $ Million
Client Category: Promoter/ KMP/ Director / Immediate Relatives / Employee / etc  
Security Type: Share/ Warrants / Convertible Debentures
Data as reported to USA Exchanges
View All The Insider Trades