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Deep Fission FISN

Deep Fission, Inc. · Nasdaq · Electric Services

$3.31+23.05%close on Oct. 28, 2026 · volume 949K · Yahoo Finance

Price, last 47 sessions

$4.00$6.00$8.00Sept. 2026Oct. 2026
Aug. 24, 2026 to Oct. 28, 2026 · high $8.47 · low $2.16 · SEC filing, placed when SEC released it

Our coverage

Nothing published yet.

Insider buying and selling

No open-market insider buying or selling in the Form 4s filed since July 24, 2026.

Recent SEC filings

All 8 →
  • 8-KOct. 20, 2026, 3:54 p.m. ETView on SEC.gov

    Regulation FD disclosure · Financial statements and exhibits

    AI summary, unreviewedDeep Fission Signs Binding 25-Year Master Energy Purchase Agreement With Great Plains Development Authority for Up to 2 GW Kansas Project

  • 8-KSept. 21, 2026, 11:26 a.m. ETView on SEC.gov

    Regulation FD disclosure · Financial statements and exhibits

  • 10-QAug. 3, 2026, 5:25 p.m. ETView on SEC.gov
  • 8-KJuly 29, 2026, 4:02 p.m. ETView on SEC.gov

    Other events · Financial statements and exhibits

  • 4July 27, 2026, 5:03 p.m. ETView on SEC.gov
  • 4July 27, 2026, 5:02 p.m. ETView on SEC.gov
  • 4July 27, 2026, 5:01 p.m. ETView on SEC.gov
  • 4July 27, 2026, 5 p.m. ETView on SEC.gov