Who owns DEEP FISSION, INC. (FISN)? Elite investor 13F holders
1 tracked elite investors reported holding DEEP FISSION, INC as of 2026-09-30, including Renaissance Technologies LLC. Who bought, trimmed or exited each quarter, with links to the original SEC 13F filings.
1 tracked investors currently reported holding · Latest report period: 2026-09-30 · Utilities · Utilities
Deep Fission, Inc. develops and deploys small modular nuclear reactors placed deep underground to generate electricity. The company provides small modular nuclear reactors designed for underground installation at a depth of one mile, offering carbon-free energy and capacity solutions. It delivers scalable reactor configurations for onsite power needs or flexible offtake agreements in wholesale…
Reported holders and securities, including exits (up to 20)
| Investor | Security | Instrument | Report period | Filed | Value | Quantity | Units | Change | Source |
|---|---|---|---|---|---|---|---|---|---|
| Renaissance Technologies LLC | DEEP FISSION INC | SHARE | 2026-09-30 | 2026-11-12 00:00:00 | 236421.00 USD | 46086.000000 | Shares | buy | Original filing |
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