Deep Fission, Inc. · NASDAQ:FISN
Mark N. Tompkins reported a 5.82% stake in Deep Fission, Inc. (Schedule 13G/A)
Event Sep 30, 2025 · Filed Nov 14, 2025
Mark N. Tompkins reported a 5.82% stake in Deep Fission, Inc., 2,958,333 shares, as a passive investor on Sep 30, 2025. Filed Nov 14, 2025 (Schedule 13G/A).
- Stake
- 5.82%
- Shares
- 2,958,333
- Intent
- Passive
- What changed
- Stake changed
The filing in full
| Holder | Stake | Shares |
|---|---|---|
| Mark N. Tompkins | 5.82% | 2,958,333 |