Company · CIK 0001918102 · SIC 4911 — Electric Services · Nasdaq
DEEP FISSION, INC. · FISN
Insider activity reported against this company. All insider holders · On EDGAR ↗
Reported at this company — common stock
No reported common-stock activity in this period.
Reported at this company — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Jul 23, 2026 AForm 4 → | Jul 27, 5:03 pm EDT | Thomas S GlanvilleDirector | 19,156 | — | — | 19,156 | — | |
| Jul 23, 2026 AForm 4 → | Jul 27, 5:02 pm EDT | Blake JanoverDirector | 18,962 | — | — | 18,962 | — | |
| Jul 23, 2026 AForm 4 → | Jul 27, 5:01 pm EDT | Tepper Leslie GoldmanDirector | 19,204 | — | — | 19,204 | — | |
| Jul 23, 2026 AForm 4 → | Jul 27, 5:00 pm EDT | Jonathon AngellDirector | 16,973 | — | — | 16,973 | — |