No quarterly revenue total was found in DEEP FISSION, INC.'s SEC filings.
Deep Fission, Inc. (FISN) files with the SEC under industry code 4911, Electric Services. Free cash flow was -$18.9 million. As of Sep 30, 2026 it held $63.4 million in cash and investments and $52,000 in total debt.
Revenue
—
Net income
$-20.93M
+53.9% vs year-ago quarter
Operating cash flow
$-18.81M
-558.1% vs year-ago quarter
Free cash flow
$-18.89M
-554.6% vs year-ago quarter
EPS
$-0.36
+81.4% vs year-ago quarter
Dividend per share
None
Shares outstanding
58.91M
+15.8% vs year-ago quarter
Net cash
$63.38M
Q3 FY2026
Operating margin
—
Company profile
- Industry
- Electric Services (SIC 4911)
- Listed as
- FISN (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Berkeley, CA
- SEC filer status
- Non-accelerated filer, Smaller reporting company, Emerging growth company
- SEC CIK
- 1918102
- Former names
- Surfside Acquisition Inc. (until Sep 8, 2025)
Other Electric Services companies
- Nextera Energy Inc NEE
- Southern Co SO
- Constellation Energy Corp CEG
- American Electric Power Co Inc AEP
- Dominion Energy, Inc D
- Entergy Corp /DE/ ETR
- Vistra Corp. VST
- Fortis Inc. FTS
Key figures
Fiscal-year totals from the annual reports; switch to Annual for the full-year view. Balance sheet lines are as of each year end.
| Line | Q3 FY2026 Sep 30, 2026 |
Q2 FY2026 Jun 30, 2026 |
Q1 FY2026 Mar 31, 2026 |
Q4 FY2025 Dec 31, 2025 |
Q3 FY2025 Sep 30, 2025 |
|---|---|---|---|---|---|
| Operating income | -$21.6M | -$31.6M | -$21.8M | -$8.9M | -$8.7M |
| Net income | -$20.9M | -$31.0M | -$21.3M | -$8.7M | -$45.4M |
| Diluted EPS | -$0.36 | -$0.56 | -$0.39 | — | -$1.94 |
| Operating cash flow | -$18.8M | -$28.4M | -$14.0M | -$6.6M | -$2.9M |
| Free cash flow | -$18.9M | -$28.4M | -$14.1M | -$6.6M | -$2.9M |
| Total assets | $94.3M | $107.3M | $92.0M | $24.7M | $30.6M |
| Total liabilities | $10.5M | $8.6M | $3.9M | $2.4M | $744,302 |
| Stockholders' equity | $83.8M | $98.8M | $88.1M | $22.3M | $29.8M |
| Cash and investments | $63.4M | $93.0M | $84.8M | $23.7M | $30.2M |
| Total debt | $52,000 | $56,000 | $59,567 | — | — |
Recent SEC filings
| Form | Description | Filed | Period |
|---|---|---|---|
| 10-Q | Quarterly report | Nov 4, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 20, 2026 | Oct 20, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 21, 2026 | Sep 21, 2026 |
| 10-Q | Quarterly report | Aug 3, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Other events
|
Jul 29, 2026 | Jul 29, 2026 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jul 17, 2026 | Jul 17, 2026 |
All 123 Deep Fission, Inc. SEC filings
Source: SEC EDGAR filings. This is company-reported data, not investment advice.