secwatch.observer — SEC 8-K summary
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Issuer:     DEEP FISSION, INC. (FISN)
CIK:        0001918102
Form:       8-K
Filed at:   2026-06-22T20:20:56+00:00
Accession:  0001104659-26-076400
Event type: other_material
Sentiment:  positive
Materiality: 0.75
Item codes: 8.01
LLM model:  deepseek-v4-flash:cloud@v2

Deep Fission completes IPO, raises $40M at $16.00 per share; stock begins trading on Nasdaq
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- Offered 2.5M shares at $16.00/share; gross proceeds of $40M.
- Underwriters have 30-day option to purchase up to 375,000 additional shares.
- Stock began trading on Nasdaq Global Market on June 18, 2026 under symbol FISN.
- Net proceeds to fund working capital, engineering, R&D, licensing, and construction of first pilot nuclear reactor.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1918102/000110465926076400/0001104659-26-076400-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1918102/000110465926076400/tm2618457d1_8k.htm
  HTML page:      https://secwatch.observer/filing/0001104659-26-076400

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