Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 1 year
- Director since
- 2025
1 year of board service in total across 1 board, counting each seat separately. Longest: Deep Fission Inc., 1 year.
Deep Fission Inc.
Director
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 |
|---|---|---|---|---|---|
| Feb 4, 2026 | Aeluma Inc. | Open-market sale | −28,544 | $14.63 | $417,599 |
| Feb 4, 2026 | Aeluma Inc. | Open-market sale | −5,956 | $15.12 | $90,055 |
| Feb 2, 2026 | Aeluma Inc. | Open-market sale | −37,500 | $15.74 | $590,250 |
| Jan 30, 2026 | Aeluma Inc. | Open-market sale | −24,092 | $15.88 | $382,581 |
| Jan 30, 2026 | Aeluma Inc. | Open-market sale | −908 | $16.79 | $15,245 |
| Jan 29, 2026 | Aeluma Inc. | Open-market sale | −27,297 | $16.75 | $457,225 |
| Jan 29, 2026 | Aeluma Inc. | Open-market sale | −5,203 | $17.16 | $89,283 |
| Jan 22, 2026 | Aeluma Inc. | Open-market sale | −29,038 | $18.05 | $524,136 |
| Jan 22, 2026 | Aeluma Inc. | Open-market sale | −962 | $18.81 | $18,095 |
| Jan 21, 2026 | Aeluma Inc. | Open-market sale | −30,328 | $18.52 | $561,675 |
| Jan 21, 2026 | Aeluma Inc. | Open-market sale | −12,947 | $19.30 | $249,877 |
| Jan 21, 2026 | Aeluma Inc. | Open-market sale | −1,715 | $20.44 | $35,055 |
| Jan 21, 2026 | Aeluma Inc. | Open-market sale | −10 | $21.24 | $212 |
| Jan 20, 2026 | Aeluma Inc. | Open-market sale | −29,112 | $20.66 | $601,454 |
| Jan 20, 2026 | Aeluma Inc. | Open-market sale | −888 | $21.58 | $19,163 |
Questions about Mark N. Tompkins
What boards is Mark N. Tompkins on?
Mark N. Tompkins sits on the board of Deep Fission Inc.
How long has Mark N. Tompkins served on boards?
Our records show at least 1 year of board service across 1 board, the earliest from 2025.
Reviews (0)
Sign in to write a review.
No reviews yet. Be the first to write one.