FISN · Deep Fission, Inc. · Executive Compensation
$5.57
+0.39 (+7.53%)
At close · Oct 2
Return incl. dividend (before tax)
Going-concern doubt
— flagged Aug 3, 2026
Substantial doubt about the company's ability to continue as a going concern.
“Based on our expectation of continued operating losses for at least the near term and our current operating plan, we anticipate our existing cash and cash equivalents, together with net proceeds from the 2026 Private Placement and IPO, will not be sufficient to fund our operations for the next twelve months, absent additional financing or material changes to our operating plan. Accordingly, we determined that there is substantial doubt about our ability to continue as a going concern for the twelve-month period following the issuance of these financial statements.”View the 10-Q filed Aug 3, 2026
Market Cap
$368.16M
Shares
58.91M
Volume · Oct 2
520.78K
Avg daily vol (3M)
269.7K
Named-executive compensation from the company's DEF 14A proxy statements — salary, bonus, stock and option awards, non-equity incentive, and the company-reported total per executive per fiscal year, exactly as disclosed in the Summary Compensation Table.
Fiscal 2025
| Executive | Role | Total |
|---|---|---|
| Elizabeth A. Muller | President and Chief Executive Officer | $7,116,217 |
| Richard A. Muller | Chief Technology Officer | $1,698,466 |
| Michael Brasel | Chief Operating Officer Malcolm Thompson Former Chief Operating Officer, Legacy Deep Fission | $706,128 |
Fiscal 2024
| Executive | Role | Total |
|---|---|---|
| Elizabeth A. Muller | President and Chief Executive Officer | $1,512,457 |
| Richard A. Muller | Chief Technology Officer | $460,000 |
Executive changes
| Person | Role | Change | Filed |
|---|---|---|---|
| Blake E. Janover | Class I director | Appointed | 2026-07-17 |
| Leslie Goldman Tepper | Class I director | Appointed | 2026-07-17 |
| Mark Pérès | Chief Nuclear Officer | Appointed | 2026-02-25 |
| Thomas S. Glanville | Class II director | Appointed | 2025-12-22 |
| Blake E. Janover | Class I director | Appointed | 2025-12-22 |
| Jonathon Angell | Director | Appointed | 2025-11-12 |
| Leslie Goldman Tepper | Director | Appointed | 2025-11-12 |
| Richard A. Muller | Board of Directors | Resigned | 2025-11-12 |
| Malcolm Thompson | employment | Terminated | 2025-09-11 |
| Mark Schmitz | Chief Financial Officer | Appointed | 2025-09-11 |
| Liz Muller | Chief Executive Officer | Appointed | 2025-09-11 |
| Richard Muller | director | Appointed | 2025-09-11 |
| Liz Muller | director | Appointed | 2025-09-11 |
| Malcolm Thompson | Chief Operating Officer | Terminated | 2025-09-11 |
| Richard Muller | Chief Technology Officer | Appointed | 2025-09-11 |
| William (Mark) Schmitz | Chief Financial Officer | Appointed | 2025-09-11 |
| Elizabeth Muller | President and Chief Executive Officer | Appointed | 2025-09-11 |
| Richard Muller | Board | Appointed | 2025-09-11 |
| Elizabeth Muller | Board | Appointed | 2025-09-11 |
| Ian Jacobs | officer positions | Resigned | 2025-09-11 |
| Ian Jacobs | Board | Resigned | 2025-09-11 |
| Mark Tompkins | Board | Resigned | 2025-09-11 |