Muller Elizabeth — SEC Form 4 filings
SEC reporting owner CIK 2081850. 5 Form 4 filings on record with FilingPulse; latest filed 2026-03-10.
Transaction summary — filings shown
Covers all 5 filings on record, filed 2025-09-09 to 2026-03-10. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 8.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| DEEP FISSION, INC. | Chief Executive Officer | 3 | — | — | 5 |
| Deep Isolation Nuclear, Inc. | Director, 10% owner | 2 | — | — | 3 |
Form 4 filings — Muller Elizabeth
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-03-10 | 4 | DEEP FISSION, INC. | Grant/award (A): 2,600,000 (derivative) @ $0 | EDGAR |
| 2025-12-12 | 4 | DEEP FISSION, INC. | Grant/award (A): 549,451 @ $0 · Grant/award (A): 183,150 (derivative) @ $0 | EDGAR |
| 2025-11-21 | 4 | Deep Isolation Nuclear, Inc. | Grant/award (A): 43,333 @ $0 | EDGAR |
| 2025-10-07 | 4 | Deep Isolation Nuclear, Inc. | Grant/award (A): 32,500 @ $0 · Grant/award (A): 10,833 (derivative) @ $0 | EDGAR |
| 2025-09-09 | 4 | DEEP FISSION, INC. | Grant/award (A): 5,196,426 · Grant/award (A): 5,057,855 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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