Time on boards
- Boards served
- 4
- Current seats
- 4
- Board service
- 11 years
- Director since
- 2023
11 years of board service in total across 4 boards, counting each seat separately. Longest: Alnylam Pharmaceuticals 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.
-
Tarsus Pharmaceuticals Inc. June 25, 202696.7%
-
Alnylam Pharmaceuticals Inc. May 16, 202490.6%
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 |
|---|---|---|---|---|---|
| Sep 15, 2026 | Tarsus Pharmaceuticals Inc. | Option exercise | +201 | — | — |
| Jun 1, 2026 | Alnylam Pharmaceuticals Inc. | Option exercise | +3,830 | — | — |
| Jun 1, 2026 | Alnylam Pharmaceuticals Inc. | Open-market sale | −921 | $297.71 | $274,191 |
| Jun 1, 2026 | Alnylam Pharmaceuticals Inc. | Open-market sale | −1,175 | $298.91 | $351,219 |
| Jun 1, 2026 | Alnylam Pharmaceuticals Inc. | Open-market sale | −1,222 | $299.87 | $366,441 |
| Jun 1, 2026 | Alnylam Pharmaceuticals Inc. | Open-market sale | −495 | $300.72 | $148,856 |
| Jun 1, 2026 | Alnylam Pharmaceuticals Inc. | Open-market sale | −17 | $302.65 | $5,145 |
| May 20, 2026 | Alnylam Pharmaceuticals Inc. | Grant or award | +671 | — | — |
| Apr 24, 2026 | Tarsus Pharmaceuticals Inc. | Option exercise | +1,383 | — | — |
| May 8, 2025 | Alnylam Pharmaceuticals Inc. | Grant or award | +775 | — | — |
| Mar 24, 2025 | Alnylam Pharmaceuticals Inc. | Option exercise | +7,440 | $88.95 | $661,788 |
| Mar 24, 2025 | Alnylam Pharmaceuticals Inc. | Open-market sale | −7,440 | $299.00 | $2,224,560 |
| Jun 24, 2024 | Alnylam Pharmaceuticals Inc. | Option exercise | +17,560 | $88.95 | $1,561,962 |
| Jun 24, 2024 | Alnylam Pharmaceuticals Inc. | Option exercise | +7,420 | $70.20 | $520,884 |
| Jun 24, 2024 | Alnylam Pharmaceuticals Inc. | Option exercise | +7,470 | $71.99 | $537,765 |
Questions about David E. I. Pyott
What boards is David E. I. Pyott on?
David E. I. Pyott sits on the boards of Alnylam Pharmaceuticals Inc., BioMarin Pharmaceutical Inc., Pliant Therapeutics Inc. and Tarsus Pharmaceuticals Inc.
How long has David E. I. Pyott served on boards?
Our records show at least 11 years of board service across 4 boards, the earliest from 2023.
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