DEEP FISSION, INC. (FISN) Form 10-K Annual Reports
DEEP FISSION, INC. (FISN) is a publicly traded company on the Nasdaq, categorized under SIC 4911 (Electric Services). Access real-time SEC filings, 10-K annual reports, 10-Q quarterlies, 8-K current reports, PCAOB auditor history, and executive compensation disclosures.
Ticker: FISN
CIK: 1918102
Exchange: Nasdaq
SIC 4911: Electric Services
Fiscal Year End: 12/31
State: DE
Independent PCAOB Auditor
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Audit Firm
Grant Thornton LLP
Auditor SinceSince 12/31/2025 12:00:00 AM
Lead Engagement PartnerKevin Schroeder
Audit LocationDallas, Texas, United States
Latest SEC EDGAR Filings
Showing 10-K, 10-Q, 8-K, Form 4, and other SEC submissions| Form | Filing Date | Reporting Period | Description | Accession Number | Actions |
|---|---|---|---|---|---|
| 8-K | 2026-09-21 | 2026-09-21 | FORM 8-K | 0001104659-26-109201 | View SEC Doc Filr Page |
| 10-Q | 2026-08-03 | 2026-06-30 | 10-Q | 0001104659-26-089884 | View SEC Doc Filr Page |
| 8-K | 2026-07-29 | 2026-07-29 | FORM 8-K | 0001104659-26-088125 | View SEC Doc Filr Page |
| 4 | 2026-07-27 | 2026-07-23 | OWNERSHIP DOCUMENT | 0001104659-26-087136 | View SEC Doc Filr Page |
| 4 | 2026-07-27 | 2026-07-23 | OWNERSHIP DOCUMENT | 0001104659-26-087135 | View SEC Doc Filr Page |
| 4 | 2026-07-27 | 2026-07-23 | OWNERSHIP DOCUMENT | 0001104659-26-087134 | View SEC Doc Filr Page |
| 4 | 2026-07-27 | 2026-07-23 | OWNERSHIP DOCUMENT | 0001104659-26-087133 | View SEC Doc Filr Page |
| S-8 | 2026-07-20 | — | FORM S-8 | 0001104659-26-085074 | View SEC Doc Filr Page |
| 8-K | 2026-07-17 | 2026-07-17 | FORM 8-K | 0001104659-26-084625 | View SEC Doc Filr Page |
| 8-K | 2026-06-22 | 2026-06-22 | FORM 8-K | 0001104659-26-076400 | View SEC Doc Filr Page |
| 424B4 | 2026-06-18 | — | 424B4 | 0001104659-26-075763 | View SEC Doc Filr Page |
| EFFECT | 2026-06-17 | — | EFFECT Filing | 9999999995-26-002042 | View SEC Doc Filr Page |
| DEF 14A | 2026-06-17 | 2026-07-17 | DEF 14A | 0001104659-26-075196 | View SEC Doc Filr Page |
| CERT | 2026-06-17 | — | CERT Filing | 0001354457-26-000586 | View SEC Doc Filr Page |
| S-1/A | 2026-06-10 | — | S-1/A | 0001104659-26-072286 | View SEC Doc Filr Page |
| 8-A12B | 2026-05-28 | — | 8-A12B | 0001104659-26-067221 | View SEC Doc Filr Page |
| S-1 | 2026-05-20 | — | S-1 | 0001104659-26-064074 | View SEC Doc Filr Page |
| SCHEDULE 13G/A | 2026-05-15 | — | SCHEDULE 13G/A Filing | 0001213900-26-057869 | View SEC Doc Filr Page |
| 10-Q | 2026-05-08 | 2026-03-31 | 10-Q | 0001104659-26-057835 | View SEC Doc Filr Page |
| EFFECT | 2026-05-01 | — | EFFECT Filing | 9999999995-26-001434 | View SEC Doc Filr Page |
| EFFECT | 2026-05-01 | — | EFFECT Filing | 9999999995-26-001430 | View SEC Doc Filr Page |
| 424B3 | 2026-05-01 | — | 424B3 | 0001104659-26-054168 | View SEC Doc Filr Page |
| 424B3 | 2026-05-01 | — | 424B3 | 0001104659-26-054157 | View SEC Doc Filr Page |
| CORRESP | 2026-04-29 | — | CORRESP Filing | 0001104659-26-051464 | View SEC Doc Filr Page |
| 3/A | 2026-04-29 | 2026-04-28 | OWNERSHIP DOCUMENT | 0001104659-26-051321 | View SEC Doc Filr Page |