Latest Period
n/a
Security Snapshot
Deep Fission, Inc. - Common Stock, par value $0.0001 per share Institutional Ownership
CUSIP: 243927100
13F Institutional Holders and Ownership History
Institutions Reporting
Shares (Excl. Options)
Price
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- Security type / class
- Equity / Common Stock, par value $0.0001 per share
- Shares outstanding
- 56,398,804
Key facts
- 243927100 - Deep Fission, Inc. - Common Stock, par value $0.0001 per share is tracked under CUSIP 243927100.
- Latest finished 13F holder period is not available.
- 4 significant owners is listed from Schedule 13D/13G reporting.
Change
- Quarterly ownership records are not available yet for this CUSIP.
- This page updates as SEC-backed holdings history becomes available.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Schedule 13D/G
Open SEC evidence
Ownership context comes from Schedule 13D/G and available holder history for this CUSIP.
Security key
243927100
Latest holder period
n/a
13F holders
13D/G owners
4
CIK / CUSIP context first
243927100 full holder history
DEEP FISSION, INC. SEC filings
DEEP FISSION, INC. company facts
DEEP FISSION, INC. insider transactions
Broader feeds
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
4
Security
243927100
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Muller Elizabeth | 21% | 10,541,757 | Muller Elizabeth | 05 Sep 2025 | ||||
| Muller Richard | 11% | 5,426,406 | Muller Richard | 05 Sep 2025 | ||||
| Tompkins Mark N. | 5.6% | -3.7% | 3,158,333 | +6.8% | Mark N.Tompkins | 31 Mar 2026 | ||
| EE Holdings Ltd | 5.5% | 2,866,667 | EE HOLDINGS LIMITED | 30 Sep 2025 |