Deep Fission Insider Trades
NASDAQ: FISNUtilitiesElectric Utilities: CentralUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Last 12 months
- Purchases
- 0 · $0
- Sales
- 0 · $0
- Shares bought / sold
- 0 / 0
- Net activity
- Net buying $0
Deep Fission insider activity
Over the last 12 months, Deep Fission insiders reported 1 transaction on SEC Form 4: 0 open-market purchases and 0 sales. The most recent filing shows Muller Elizabeth (Chief Executive Officer) reporting a transaction in 549,451 shares on Dec 9, 2025. Insider sales are common for compensation, tax and diversification reasons, while open-market purchases are rarer; tracking both helps put FISN's ownership changes in context.
Summary generated from market data by MetaCap's automated system. Methodology
FISN insider transactions
| Date | Insider | Type | Shares | Value | Filing |
|---|---|---|---|---|---|
| Dec 9, 2025 | Muller ElizabethChief Executive Officer | Award | 549,451 | — | Form 4 |
| Sep 5, 2025 | Tompkins Mark N.See Remarks | other | 2,833,333 | — | Form 4 |
| Sep 5, 2025 | Muller ElizabethPresident and Chief Executive | Award | 5,057,855 | — | Form 4 |
| Sep 5, 2025 | Muller ElizabethPresident and Chief Executive | Award | 5,196,426 | — | Form 4 |
| Sep 5, 2025 | Muller RichardChief Technology Officer | Award | 5,196,426 | — | Form 4 |
| Sep 5, 2025 | Schmitz William MarkChief Financial Officer | Award | 103,928 | — | Form 4 |
| Aug 26, 2025 | Jacobs Ian SethPresident, CEO, CFO, Secretary | Buy | 25,000 | $2.50 | Form 4 |
| Aug 26, 2025 | Tompkins Mark N.Director | Sale | 25,000 | $2.50 | Form 4 |
Transaction codes follow SEC Form 4: P = open-market purchase, S = open-market sale, A = grant or award, M = option exercise, F = shares withheld for taxes. About Form 4