Quick Takeaways
- Elizabeth Muller filed SCHEDULE 13D for DEEP FISSION, INC. Common Stock, $0.0001 par value per share.
- Disclosed ownership: 21%.
- Date of event: 05 Sep 2025.
Elizabeth Muller - 05 Sep 2025 SCHEDULE 13D Report for DEEP FISSION, INC. Common Stock, $0.0001 par value per share
- Filing Manager
- Elizabeth Muller
- Reporting Manager
- Muller Elizabeth
- Shares outstanding
- 51,173,578 shares
- Disclosed Ownership
- 10,541,757 shares
- Ownership
- 21%
- Form type
- SCHEDULE 13D
- Filing time
- 23 Sep 2025, 21:43:45 UTC
- Date of event
- 05 Sep 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"Elizabeth Muller disclosed 21% ownership in DEEP FISSION, INC. Common Stock, $0.0001 par value per share on 05 Sep 2025."
What Changed
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 23 Sep 2025, 21:43.
Why This Matters
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Official SEC Source
Backed by Schedule 13D/13G
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
See Original FilingReporting Managers (1)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Muller Elizabeth | 21% | 10,541,757 | 10,541,757 | 0 | /s/ Elizabeth Muller | Elizabeth Muller/Director, President and Chief Executive Officer | 0002081850 |