Deep Fission, Inc. (FISN)
Nasdaq: FISN · Electric Services · Berkeley, CA · filing with the SEC since 2022
Filings
79 filings since 2017 beside 44 insider forms · Non-accelerated filer and smaller reporting company and emerging growth company · read from EDGAR on Nov 13, 2026Due nextNon-accelerated filer and smaller reporting company and emerging growth company
10-K
Annual report for the fiscal year ending Dec 31, 2026Non-accelerated filers and smaller reporting companies have 90 days after the fiscal year ends.
by Mar 31, 2027
10-Q
Quarterly report for the quarter ending Mar 31, 2027Non-accelerated filers and smaller reporting companies have 45 days after the quarter ends; quarter ends are taken to the month end.
by May 15, 2027
A deadline is the latest date the SEC's rules allow for its filer category. It is not a forecast of the day the company files. The proxy statement was last filed Jun 17, 2026.
Filings a yearinsider forms included
9644262
2026 counts to Nov 13, 2026.
Officer or director change (8-K item 5.02): 6 times in the last 36 months, the newest Jul 17, 2026.Warning not to rely on past financial statements (8-K item 4.02): 1 time in the last 36 months, the newest Apr 9, 2026.Auditor change (8-K item 4.01): 2 times in the last 36 months, the newest Mar 5, 2026.SEC letters: 2 in the last 36 months, the newest Apr 29, 2026.A late-filing notice, Form NT 10-K, filed Mar 31, 2026.
Insider forms (3, 4, 5 and 144) are counted each year but not listed here; the people and their trades are on the Ownership tab.
FiledFormWhat it is, in plain wordsPeriodAsk
Jul 17, 2026
8-K items 5.02, 5.07, 9.01
Officer or director change; Shareholder vote · Current report
Feb 10, 2026
8-K items 1.01, 3.02, 7.01, 8.01, 9.01
Major agreement signed; Shares sold without registration; Investor disclosure (Regulation FD); Other event · Current report
Feb 5, 2026
40 of 79 shown
Every row opens the filing on EDGAR. The plain words are the site's own for each form and each 8-K item; the complete history, insider forms included, is on EDGAR.