Time on boards
- Boards served
- 4
- Current seats
- 4
- Board service
- 14 years
- Director since
- 2023
14 years of board service in total across 4 boards, counting each seat separately. Longest: Moderna Inc., 3 years.
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
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Moderna Inc. May 6, 202681.0%
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Gilead Sciences Inc. April 30, 202697.0%
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Revolution Medicines Inc. June 26, 202585.5%
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Gilead Sciences Inc. May 7, 202597.1%
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Olema Pharmaceuticals Inc. June 13, 202487.2%
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Gilead Sciences Inc. May 8, 202497.8%
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Gilead Sciences Inc. May 3, 202398.1%
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Moderna Inc. May 3, 202396.9%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Jun 18, 2026 | Revolution Medicines Inc. | Grant or award | +1,191 | — | — |
| Apr 30, 2026 | Moderna Inc. | Option exercise | +16,233 | — | — |
| Apr 30, 2026 | Gilead Sciences Inc. | Grant or award | +1,146 | — | — |
| Jun 26, 2025 | Revolution Medicines Inc. | Grant or award | +3,142 | — | — |
| May 7, 2025 | Gilead Sciences Inc. | Grant or award | +1,516 | — | — |
| Apr 30, 2025 | Moderna Inc. | Option exercise | +979 | — | — |
| Jun 20, 2024 | Revolution Medicines Inc. | Grant or award | +4,800 | — | — |
| Nov 9, 2023 | Revolution Medicines Inc. | Grant or award | +52,291 | — | — |
| Nov 9, 2023 | Revolution Medicines Inc. | Grant or award | +27,696 | — | — |
| Nov 9, 2023 | Revolution Medicines Inc. | Grant or award | +10,500 | — | — |
| May 3, 2023 | Gilead Sciences Inc. | Grant or award | +1,887 | — | — |
| Apr 28, 2023 | Moderna Inc. | Option exercise | +670 | — | — |
Questions about Sandra Horning
What boards is Sandra Horning on?
Sandra Horning sits on the boards of Gilead Sciences Inc., Moderna Inc., Olema Pharmaceuticals Inc. and Revolution Medicines Inc.
How long has Sandra Horning served on boards?
Our records show at least 14 years of board service across 4 boards, the earliest from 2023.
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