Briggs Morrison
President, Head of R&D at Syndax Pharmaceuticals Inc.
Sits on 4 boards. Last updated September 28, 2026
Time on boards
- Boards served
- 4
- Current seats
- 4
- Board service
- 12 years
- Director since
- 2023
12 years of board service in total across 4 boards, counting each seat separately. Longest: Syndax 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.
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CRISPR Therapeutics AG June 4, 202693.2%
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Werewolf Therapeutics Inc. June 12, 202575.2%
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CRISPR Therapeutics AG June 5, 202597.0%
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 24, 2026 | Arvinas Inc. | Grant or award | +15,527 | — | — |
| Mar 6, 2026 | Arvinas Inc. | Open-market purchase | +20,000 | $13.40 | $268,000 |
| Sep 22, 2025 | Arvinas Inc. | Open-market purchase | +30,000 | $7.57 | $227,100 |
| Jun 25, 2025 | Arvinas Inc. | Grant or award | +16,025 | — | — |
| May 29, 2024 | Arvinas Inc. | Grant or award | +5,899 | — | — |
| Feb 7, 2024 | Syndax Pharmaceuticals Inc. | Grant or award | +17,000 | — | — |
| Aug 9, 2023 | Syndax Pharmaceuticals Inc. | Option exercise | +52,855 | $8.77 | $463,538 |
| Aug 9, 2023 | Syndax Pharmaceuticals Inc. | Open-market sale | −52,855 | $18.27 | $965,661 |
| Jul 10, 2023 | Syndax Pharmaceuticals Inc. | Option exercise | +52,855 | $8.77 | $463,538 |
| Jul 10, 2023 | Syndax Pharmaceuticals Inc. | Open-market sale | −52,855 | $20.40 | $1,078,242 |
| Jun 15, 2023 | Arvinas Inc. | Grant or award | +4,121 | — | — |
| Jun 9, 2023 | Syndax Pharmaceuticals Inc. | Option exercise | +24,582 | $6.38 | $156,833 |
| Jun 9, 2023 | Syndax Pharmaceuticals Inc. | Option exercise | +28,273 | $8.77 | $247,954 |
| Jun 9, 2023 | Syndax Pharmaceuticals Inc. | Open-market sale | −24,582 | $21.18 | $520,647 |
| Jun 9, 2023 | Syndax Pharmaceuticals Inc. | Open-market sale | −28,273 | $21.18 | $598,822 |
Questions about Briggs Morrison
What boards is Briggs Morrison on?
Briggs Morrison sits on the boards of Arvinas Inc., CRISPR Therapeutics AG, Syndax Pharmaceuticals Inc. and Werewolf Therapeutics Inc.
How long has Briggs Morrison served on boards?
Our records show at least 12 years of board service across 4 boards, the earliest from 2023.
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