The offering provides near-term cash runway for Deep Fission's pilot reactor development, but the company is pre-revenue and will require significant additional capital. Monitor for progress on licensing and construction milestones, and watch the exercise of the underwriters' 30-day over-allotment option.
Price Chart
Executive Summary
On June 22, 2026, Deep Fission, Inc. completed a public offering of 2,500,000 shares of common stock at $16.00 per share, raising $40 million in gross proceeds. The company, which began trading on Nasdaq on June 18, 2026, will use the net proceeds for working capital and to fund the development and construction of its first pilot nuclear reactor.
Key Facts
- Completed public offering of 2,500,000 shares at $16.00 per share on June 22, 2026
- Gross proceeds of $40 million
- Underwriters have a 30-day option to purchase up to an additional 375,000 shares at the IPO price
- Common stock began trading on Nasdaq under symbol FISN on June 18, 2026
- Proceeds to be used for working capital and development of first pilot nuclear reactor
Financial Impact
Gross proceeds of $40 million from offering, representing additional capital for the company's early-stage nuclear reactor development.
Risk Factors
- Pre-revenue company with no operational history; pilot reactor may face licensing, construction, or technology risks
- Potential dilution from the 375,000 share over-allotment option and any future capital raises
- Nuclear energy development carries long lead times and high capital requirements
Market Snapshot
Documents Analyzed
This report is based on 4 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 8-K Filing (Primary) | 0001104659-26-076400 |
| Document: 0001104659-26-076400-index-headers.html | 0001104659-26-076400 |
| Document: 0001104659-26-076400-index.html | 0001104659-26-076400 |
| Document: 0001104659-26-076400.txt | 0001104659-26-076400 |
Track record builds as more directional reports settle.
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 20, 2026 6d ago | 8-K | $2.81 $2.63 | ▼ −6.41% | ▼ −6.93% | $2.16 (−23.13%) |
Sep 21, 2026 5w ago | 8-K | $7.82 $8.12 | ▲ +3.84% | ▲ +3.85% | $2.16 (−72.38%) |
Jun 22, 2026 17w ago | 8-K | $12.44 $9.76 | ▼ −21.54% | ▼ −21.50% | $2.16 (−82.64%) |
Jun 18, 2026 18w ago | 424B4 | $12.42 $12.44 | ▼ −0.16% | ▼ −1.61% | $2.16 (+82.61%) |
Jun 18, 2026 18w ago | EFFECT | $14.56 $12.42 | ▼ −14.70% | ▼ −14.38% | $2.16 (−85.16%) |
Jun 10, 2026 19w ago | S-1/A | — | awaiting T+1 | — | — |
US Market Status
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