DEEP FISSION, INC.
FISNNasdaq
$10.65
↑ +1.3%Jul 17 close · end-of-day
Price
1Y↓ -26.9%
End-of-day closes; the latest point is the live 15-min-delayed price · split & dividend adjusted · chart by TradingView
Key statistics
Market Cap
$579.8M
Enterprise Value
$495.1M
P/E
—
P/S
—
P/B
6.6
EV/EBITDA
—
PEG
—
FCF Yield
—
Dividend Yield
—
Revenue (TTM)
—
Net Income (TTM)
-$79.2M
Free Cash Flow (TTM)
—
Gross Margin
—
Operating Margin
—
Net Margin
—
ROE
-89.9%
ROIC
-974.1%
Debt / Equity
—
Net Cash
$84.8M
Return 1Y
—
Company profile
Deep Fission, Inc. (“Deep Fission”) is a nuclear energy technology company developing a small modular reactor (“SMR”) based on established pressurized water reactor (“PWR”) technology, with novel emplacement in deep boreholes approximately one mile below the Earth’s surface. Our principal executive offices are located in Berkeley, California.
- CEO
- Elizabeth Muller
- Sector
- Finance, Insurance, And Real Estate
- Industry
- Trading
- Employees
- 60
- Headquarters
- California
- Website
- www.deepfission.com
Management & directors
- Muller ElizabethPresident and Chief Executive
- Muller RichardChief Technology Officer
- Schmitz William MarkChief Financial Officer
- Jacobs Ian SethPresident, CEO, CFO, Secretary
Roles derived from SEC Form 4 filings.
Earnings
FISN Q1 2026 Earnings
Period ends 2026-03-31
MetricActualYoY
Revenue——
Diluted EPS-$0.39↑ +105.3%
Actuals from SEC filings; YoY vs the year-ago quarter. Analyst estimates & surprise require a data feed (coming soon).
Financial statements
| Line item | FY2022 | FY2023 | FY2024 | FY2025 |
|---|---|---|---|---|
| Revenue | — | — | — | — |
| Gross profit | — | — | — | — |
| Operating income | -$49,408.00 | -$47,625.00 | -$4.1M | -$21.4M |
| Net income | -$49,408.00 | -$47,625.00 | -$5.7M | -$61.0M |
| Diluted EPS | -$0.01 | -$0.01 | -$0.57 | — |
| Operating cash flow | -$40,056.00 | -$46,277.00 | -$2.8M | -$13.1M |
| Free cash flow | — | — | -$2.8M | -$13.1M |
| Gross margin | — | — | — | — |
| Operating margin | — | — | — | — |
| Net margin | — | — | — | — |
| Line item | Q2 '24 | Q3 '24 | Q4 '24 | Q1 '25 | Q2 '25 | Q3 '25 | Q4 '25 | Q1 '26 |
|---|---|---|---|---|---|---|---|---|
| Revenue | — | — | — | — | — | — | — | — |
| Gross profit | — | — | — | — | — | — | — | — |
| Operating income | -$11,461.00 | -$705,629.00 | -$3.4M | -$1.7M | -$12,774.00 | -$8.8M | -$10.8M | -$21.8M |
| Net income | -$1.3M | -$1.2M | -$2.4M | -$3.1M | -$3.8M | -$45.4M | -$8.7M | -$21.3M |
| Diluted EPS | $0.00 | -$0.09 | -$0.48 | -$0.19 | $0.00 | -$1.94 | — | -$0.39 |
| Operating cash flow | -$22,161.00 | -$1.4M | -$1.4M | -$1.6M | $1.6M | -$6.5M | -$6.6M | -$14.0M |
| Free cash flow | — | — | — | -$1.6M | — | — | — | -$14.1M |
| Gross margin | — | — | — | — | — | — | — | — |
| Operating margin | — | — | — | — | — | — | — | — |
| Net margin | — | — | — | — | — | — | — | — |
Company news
Analyst estimates
Coming soonConsensus revenue & EPS estimates and price targets will appear here once a forward-estimates data feed is connected.
Insider transactions
BoughtSoldMonthly insider $ volume · trailing 12 months
| Date | Insider | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|
| 2025-12-09 | Muller Elizabeth· Chief Executive Officer | Award | 549,451 | $0.00 | $0.00 | filing |
| 2025-09-05 | Tompkins Mark N. | J | 2,833,333 | $0.00 | $0.00 | filing |
| 2025-09-05 | Muller Elizabeth· President and Chief Executive | Award | 5,196,426 | — | — | filing |
| 2025-09-05 | Muller Elizabeth· President and Chief Executive | Award | 5,057,855 | — | — | filing |
| 2025-09-05 | Schmitz William Mark· Chief Financial Officer | Award | 103,928 | — | — | filing |
| 2025-09-05 | Muller Richard· Chief Technology Officer | Award | 5,196,426 | — | — | filing |
| 2025-08-26 | Tompkins Mark N. | Sale | 25,000 | $0.00 | $2.50 | filing |
| 2025-08-26 | Jacobs Ian Seth· President, CEO, CFO, Secretary | Buy | 25,000 | $0.00 | $2.50 | filing |
Latest 8 transactions.
Fundamentals & filings from SEC EDGAR. Prices adjusted for splits & dividends. Not investment advice.