Tomas Kiselak
Sits on 8 boards. Overboarded · 8 public boards Last updated September 28, 2026
Time on boards
- Boards served
- 8
- Current seats
- 8
- Board service
- 18 years
- Director since
- 2023
18 years of board service in total across 8 boards, counting each seat separately. Longest: Viridian Therapeutics 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.
-
Viridian Therapeutics Inc. June 2, 202683.3%
-
Spyre Therapeutics Inc. May 13, 202478.2%
-
Viridian Therapeutics Inc. June 14, 202374.8%
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 |
|---|---|---|---|---|---|
| Jul 1, 2026 | Oruka Therapeutics Inc. | Derivative conversion | +3,553,410 | — | — |
| Jul 1, 2026 | Oruka Therapeutics Inc. | Open-market sale | −3,553,410 | $84.43 | $300,014,406 |
| Mar 31, 2026 | Zenas BioPharma Inc. | Open-market purchase | +150,000 | $20.00 | $3,000,000 |
| Sep 17, 2025 | Oruka Therapeutics Inc. | Grant or award | +333,340 | $15.00 | $5,000,100 |
| Nov 19, 2024 | Oruka Therapeutics Inc. | Option exercise | +160,000 | — | — |
| Sep 27, 2024 | Dianthus Therapeutics Inc. | Other | −62,146 | — | — |
| Sep 11, 2024 | Oruka Therapeutics Inc. | Grant or award | +275,000 | $23.00 | $6,325,000 |
| Apr 1, 2024 | Dianthus Therapeutics Inc. | Other | −58,857 | — | — |
| Apr 1, 2024 | Dianthus Therapeutics Inc. | Other | +58,857 | — | — |
| Sep 26, 2023 | Dianthus Therapeutics Inc. | Open-market purchase | +30,000 | $13.15 | $394,500 |
| Sep 19, 2023 | Dianthus Therapeutics Inc. | Open-market purchase | +30,000 | $13.20 | $396,000 |
| Sep 13, 2023 | Dianthus Therapeutics Inc. | Open-market purchase | +9,367 | $11.76 | $110,156 |
| Sep 12, 2023 | Dianthus Therapeutics Inc. | Open-market purchase | +14,887 | $10.85 | $161,524 |
Questions about Tomas Kiselak
What boards is Tomas Kiselak on?
Tomas Kiselak sits on the boards of Crescent Biopharma Inc., Dianthus Therapeutics Inc., Jade Biosciences Inc., Korsana Biosciences Inc., Oruka Therapeutics Inc., Spyre Therapeutics Inc., Viridian Therapeutics Inc. and Zenas BioPharma Inc.
How long has Tomas Kiselak served on boards?
Our records show at least 18 years of board service across 8 boards, the earliest from 2023.
Reviews (0)
Sign in to write a review.
No reviews yet. Be the first to write one.