Stephen F. Mahoney
President and CEO at Viridian Therapeutics Inc.
Sits on 1 board. Last updated September 28, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 3 years
- Director since
- 2023
3 years of board service in total across 1 board, counting each seat separately. Longest: Viridian Therapeutics Inc., 2 years.
Viridian Therapeutics Inc.
Director · President and CEO
Chief executive roles
Viridian Therapeutics Inc.
· President and CEO
Since October 2023
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 |
|---|---|---|---|---|---|
| Mar 3, 2026 | Viridian Therapeutics Inc. | Option exercise | +18,357 | — | — |
| Mar 3, 2026 | Viridian Therapeutics Inc. | Shares withheld for tax | −7,627 | $29.32 | $223,624 |
| Sep 27, 2024 | Viridian Therapeutics Inc. | Open-market purchase | +21,400 | $23.33 | $499,262 |
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