secwatch.observer — SEC 8-K summary
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Issuer:     DEEP FISSION, INC. (FISN)
CIK:        0001918102
Form:       8-K
Filed at:   2025-12-04T23:59:59+00:00
Accession:  0001104659-25-118387
Event type: regulatory
Sentiment:  positive
Materiality: 0.70
Item codes: 7.01, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Deep Fission selects Kansas site for DOE advanced reactor pilot; groundbreaking Dec 9
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- Pilot site selected at Great Plains Industrial Park in Parsons, Kansas; groundbreaking Dec 9, 2025.
- Targets reactor criticality by July 4, 2026, pending DOE authorization under Reactor Pilot Program.
- Holds letters of intent for ~12.5 GW of potential future commercial demand.
- Signed LOI with Great Plains Development Authority for full-scale commercial project at same site.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1918102/000110465925118387/0001104659-25-118387-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1918102/000110465925118387/tm2532758d1_8k.htm
  HTML page:      https://secwatch.observer/filing/0001104659-25-118387

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