secwatch.observer — SEC 8-K summary
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Issuer:     DEEP FISSION, INC. (FISN)
CIK:        0001918102
Form:       8-K
Filed at:   2025-11-07T23:59:59+00:00
Accession:  0001104659-25-107929
Event type: other_material
Sentiment:  positive
Materiality: 0.80
Item codes: 7.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Deep Fission selected for DOE reactor pilot; partnership with Endeavour for 2 GW data center power
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- Selected as one of 11 companies for DOE Nuclear Reactor Pilot Program; target criticality by July 4, 2026.
- Partnered with Endeavour to co-develop 2 GW of nuclear energy for data centers targeting cloud providers.
- Target LCOE of $50-70/MWh and estimated 6-month build time from breaking ground to full production.
- LOIs secured at three sites (Kansas, Texas, Utah) for first commercial projects expected in 2027.
- 24 pending patent applications; 40+ unique innovations; leadership includes Elizabeth Muller (CEO) and Richard Muller (CTO).

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1918102/000110465925107929/0001104659-25-107929-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1918102/000110465925107929/tm2530540d1_8k.htm
  HTML page:      https://secwatch.observer/filing/0001104659-25-107929

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer