Gilead Sciences's top three insider shareholders as of September 29, 2026 are Daniel Patrick O'Day (Chairman Ceo, 581.68K shares), Andrew D Dickinson (Chief Financial Officer, 164.10K shares), Johanna Mercier (Chief Comm Corp Aff Officer, 116.68K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Daniel Patrick O'Day | Chairman Ceo | 581,683 | 0 | 581,683 | 44.0% | 11 Sep, 2026 |
| 2 | Andrew D Dickinson | Chief Financial Officer | 164,096 | 0 | 164,096 | 12.4% | 16 Sep, 2026 |
| 3 | Johanna Mercier | Chief Comm Corp Aff Officer | 116,684 | 0 | 116,684 | 8.8% | 16 Sep, 2026 |
| 4 | Kevin E Lofton | Director | 0 | 92,653 | 92,653 | 7.0% | 04 May, 2023 |
| 5 | Merdad Parsey | Chief Medical Officer | 82,850 | 0 | 82,850 | 6.3% | 11 Dec, 2024 |
| 6 | Diane E. Wilfong | Interim Corp Controller Cao | 46,259 | 0 | 46,259 | 3.5% | 11 Sep, 2025 |
| 7 | Deborah H Telman | Evp, Corporate Affairs Gc | 43,676 | 0 | 43,676 | 3.3% | 13 Nov, 2025 |
| 8 | Sandra Patterson | Svp, Controllership | 39,453 | 0 | 39,453 | 3.0% | 12 Mar, 2025 |
| 9 | Brett A Pletcher | Evp,Corp Affairs Gen Counsel | 33,426 | 0 | 33,426 | 2.5% | 13 Jun, 2022 |
| 10 | Jacqueline K Barton | Director | 27,202 | 0 | 27,202 | 2.1% | 04 May, 2026 |
| 11 | Dietmar Berger | Chief Medical Officer | 19,522 | 0 | 19,522 | 1.5% | 11 Sep, 2026 |
| 12 | Harish Manwani | Director | 15,015 | 0 | 15,015 | 1.1% | 04 May, 2026 |
| 13 | Javier Rodriguez | Director | 13,364 | 0 | 13,364 | 1.0% | 04 May, 2026 |
| 14 | Anthony Welters | Director | 12,894 | 0 | 12,894 | 1.0% | 27 Aug, 2026 |
| 15 | Jeffrey Bluestone | Director | 10,066 | 0 | 10,066 | 0.8% | 21 Aug, 2026 |
| 16 | Wettan Keeley M Cain | Evp Gen Counsel, Legal Comp | 8,759 | 0 | 8,759 | 0.7% | 11 Sep, 2026 |
| 17 | Sandra Horning | Director | 6,293 | 0 | 6,293 | 0.5% | 04 May, 2026 |
| 18 | Ted W Love | Director | 5,484 | 0 | 5,484 | 0.4% | 04 May, 2026 |
| 19 | Erin Burkhart | Svp, Controllership | 1,455 | 0 | 1,455 | 0.1% | 23 Sep, 2026 |
| 20 | Kelly A. Kramer | Director | 1,339 | 0 | 1,339 | 0.1% | 01 Dec, 2025 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 22 Sep, 2026 | Erin Burkhart | Svp, Controllership | Acquired M | 2,223 | — | — | 2,223 | Direct |
| 22 Sep, 2026 | Erin Burkhart | Svp, Controllership | Disposed F | 768 | $152.67 | $117.25K | 1,455 | Direct |
| 22 Sep, 2026 | Erin Burkhart | Svp, Controllership | Disposed M | 2,223 | — | — | 9,022 | Direct |
| 10 Sep, 2026 | Johanna Mercier | Chief Comm Corp Aff Officer | Acquired M | 2,797 | — | — | 121,031 | Direct |
| 10 Sep, 2026 | Wettan Keeley M Cain | Evp Gen Counsel, Legal Comp | Acquired M | 590 | — | — | 9,044 | Direct |
| 10 Sep, 2026 | Dietmar Berger | Chief Medical Officer | Acquired M | 533 | — | — | 19,785 | Direct |
| 10 Sep, 2026 | Andrew D Dickinson | Chief Financial Officer | Acquired M | 2,797 | — | — | 168,443 | Direct |
| 10 Sep, 2026 | Daniel Patrick O'Day | Chairman Ceo | Acquired M | 8,780 | — | — | 585,913 | Direct |
| 10 Sep, 2026 | Dietmar Berger | Chief Medical Officer | Disposed F | 263 | $144.81 | $38.09K | 19,522 | Direct |
| 10 Sep, 2026 | Daniel Patrick O'Day | Chairman Ceo | Disposed F | 4,230 | $144.81 | $612.55K | 581,683 | Direct |
| 10 Sep, 2026 | Wettan Keeley M Cain | Evp Gen Counsel, Legal Comp | Disposed F | 285 | $144.81 | $41.27K | 8,759 | Direct |
| 10 Sep, 2026 | Andrew D Dickinson | Chief Financial Officer | Disposed F | 1,347 | $144.81 | $195.06K | 167,096 | Direct |
| 10 Sep, 2026 | Johanna Mercier | Chief Comm Corp Aff Officer | Disposed F | 1,347 | $144.81 | $195.06K | 119,684 | Direct |
| 10 Sep, 2026 | Wettan Keeley M Cain | Evp Gen Counsel, Legal Comp | Disposed M | 590 | — | — | 13,405 | Direct |
| 10 Sep, 2026 | Johanna Mercier | Chief Comm Corp Aff Officer | Disposed M | 2,797 | — | — | 25,054 | Direct |
| 10 Sep, 2026 | Andrew D Dickinson | Chief Financial Officer | Disposed M | 2,797 | — | — | 25,054 | Direct |
| 10 Sep, 2026 | Daniel Patrick O'Day | Chairman Ceo | Disposed M | 8,780 | — | — | 83,300 | Direct |
| 10 Sep, 2026 | Dietmar Berger | Chief Medical Officer | Disposed M | 533 | — | — | 46,395 | Direct |
| 01 Sep, 2026 | Daniel Patrick O'Day | Chairman Ceo | Disposed S | 1,600 | $147.51 | $236.01K | 590,533 | Direct |
| 01 Sep, 2026 | Daniel Patrick O'Day | Chairman Ceo | Disposed S | 7,992 | $148.36 | $1.19Mn | 582,541 | Direct |