Gilead Sciences's three largest insider shareholders as of September 09, 2026 are Daniel Patrick O'Day (Chairman Ceo, 577.13K shares), Andrew D Dickinson (Chief Financial Officer, 165.65K shares), Johanna Mercier (Chief Comm Corp Aff Officer, 124.23K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Daniel Patrick O'Day | Chairman Ceo | 577,133 | 0 | 577,133 | 45.1% | 02 Sep, 2026 |
| 2 | Andrew D Dickinson | Chief Financial Officer | 165,646 | 0 | 165,646 | 12.9% | 18 Aug, 2026 |
| 3 | Johanna Mercier | Chief Comm Corp Aff Officer | 124,234 | 0 | 124,234 | 9.7% | 16 Jun, 2026 |
| 4 | Kevin E Lofton | Director | 0 | 92,653 | 92,653 | 7.2% | 04 May, 2023 |
| 5 | Merdad Parsey | Chief Medical Officer | 82,850 | 0 | 82,850 | 6.5% | 11 Dec, 2024 |
| 6 | Diane E. Wilfong | Interim Corp Controller Cao | 46,259 | 0 | 46,259 | 3.6% | 11 Sep, 2025 |
| 7 | Sandra Patterson | Svp, Controllership | 39,453 | 0 | 39,453 | 3.1% | 12 Mar, 2025 |
| 8 | Brett A Pletcher | Evp,Corp Affairs Gen Counsel | 33,426 | 0 | 33,426 | 2.6% | 13 Jun, 2022 |
| 9 | Jacqueline K Barton | Director | 27,202 | 0 | 27,202 | 2.1% | 04 May, 2026 |
| 10 | Dietmar Berger | Chief Medical Officer | 19,252 | 0 | 19,252 | 1.5% | 11 Jun, 2026 |
| 11 | Harish Manwani | Director | 15,015 | 0 | 15,015 | 1.2% | 04 May, 2026 |
| 12 | Javier Rodriguez | Director | 13,364 | 0 | 13,364 | 1.0% | 04 May, 2026 |
| 13 | Anthony Welters | Director | 12,894 | 0 | 12,894 | 1.0% | 27 Aug, 2026 |
| 14 | Jeffrey Bluestone | Director | 10,066 | 0 | 10,066 | 0.8% | 21 Aug, 2026 |
| 15 | Wettan Keeley M Cain | Evp Gen Counsel, Legal Comp | 8,454 | 0 | 8,454 | 0.7% | 11 Aug, 2026 |
| 16 | Sandra Horning | Director | 6,293 | 0 | 6,293 | 0.5% | 04 May, 2026 |
| 17 | Ted W Love | Director | 5,484 | 0 | 5,484 | 0.4% | 04 May, 2026 |
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 |
|---|---|---|---|---|---|---|---|---|
| 26 Aug, 2026 | Anthony Welters | Director | Acquired M | 7,718 | $60.67 | $468.25K | 20,612 | Direct |
| 26 Aug, 2026 | Anthony Welters | Director | Disposed S | 3,118 | $148.31 | $462.43K | 17,494 | Direct |
| 26 Aug, 2026 | Anthony Welters | Director | Disposed S | 4,600 | $148.82 | $684.59K | 12,894 | Direct |
| 26 Aug, 2026 | Anthony Welters | Director | Acquired M | 10,282 | $61.35 | $630.80K | 23,176 | Direct |
| 26 Aug, 2026 | Anthony Welters | Director | Disposed S | 3,402 | $148.24 | $504.30K | 19,774 | Direct |
| 26 Aug, 2026 | Anthony Welters | Director | Disposed S | 6,880 | $148.82 | $1.02Mn | 12,894 | Direct |
| 26 Aug, 2026 | Anthony Welters | Director | Disposed M | 7,718 | $0.00 | $0 | 0 | Direct |
| 26 Aug, 2026 | Anthony Welters | Director | Disposed M | 10,282 | $0.00 | $0 | 5,569 | Direct |
| 20 Aug, 2026 | Jeffrey Bluestone | Director | Acquired M | 1,165 | $67.45 | $78.58K | 11,231 | Direct |
| 20 Aug, 2026 | Jeffrey Bluestone | Director | Disposed S | 1,165 | $143.75 | $167.47K | 10,066 | Direct |
| 20 Aug, 2026 | Jeffrey Bluestone | Director | Acquired M | 1,816 | $67.45 | $122.49K | 11,882 | Direct |
| 20 Aug, 2026 | Jeffrey Bluestone | Director | Disposed S | 1,816 | $144.92 | $263.18K | 10,066 | Direct |
| 20 Aug, 2026 | Jeffrey Bluestone | Director | Acquired M | 1,658 | $67.45 | $111.83K | 11,724 | Direct |
| 20 Aug, 2026 | Jeffrey Bluestone | Director | Disposed S | 1,658 | $145.73 | $241.62K | 10,066 | Direct |
| 20 Aug, 2026 | Jeffrey Bluestone | Director | Acquired M | 26 | $67.45 | $1.75K | 10,092 | Direct |
| 20 Aug, 2026 | Jeffrey Bluestone | Director | Disposed S | 26 | $146.36 | $3.81K | 10,066 | Direct |
| 20 Aug, 2026 | Jeffrey Bluestone | Director | Acquired M | 335 | $61.35 | $20.55K | 10,401 | Direct |
| 20 Aug, 2026 | Jeffrey Bluestone | Director | Disposed S | 335 | $146.26 | $49.00K | 10,066 | Direct |
| 20 Aug, 2026 | Jeffrey Bluestone | Director | Disposed M | 4,665 | $0.00 | $0 | 0 | Direct |
| 20 Aug, 2026 | Jeffrey Bluestone | Director | Disposed M | 335 | $0.00 | $0 | 11,395 | Direct |