FISN insider filings
DEEP FISSION, INC. — 4 most recent insider filings (SEC Forms 3/4/5) from EDGAR, normalized by FilingPulse. Latest filing: 2026-07-27. Screen FISN transaction legs live →
Insider transaction summary — last 90 days
2026-07-10 to 2026-10-08, from the filings listed below: 4 insider filings (Forms 3/4/5). 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, …): 4.
By insider — same window
Open-market purchase/sale legs on non-derivative securities, grouped by the filing's reporting owner(s); joint filings appear once. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Insider | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|
| Angell Jonathon — Director | 1 | — | — | 1 |
| GLANVILLE THOMAS S — Director | 1 | — | — | 1 |
| Goldman Tepper Leslie — Director | 1 | — | — | 1 |
| JANOVER BLAKE — Director | 1 | — | — | 1 |
Recent insider filings — DEEP FISSION, INC.
| Filed | Form | Insider | Reported transactions | Source |
|---|---|---|---|---|
| 2026-07-27 | 4 | GLANVILLE THOMAS S — Director | Grant/award (A): 19,156 (derivative) @ $0 | EDGAR |
| 2026-07-27 | 4 | Goldman Tepper Leslie — Director | Grant/award (A): 19,204 (derivative) @ $0 | EDGAR |
| 2026-07-27 | 4 | JANOVER BLAKE — Director | Grant/award (A): 18,962 (derivative) @ $0 | EDGAR |
| 2026-07-27 | 4 | Angell Jonathon — Director | Grant/award (A): 16,973 (derivative) @ $0 | EDGAR |
Recent 8-K events — DEEP FISSION, INC.
| Filed | Form | Items reported | Source |
|---|---|---|---|
| 2026-09-21 | 8-K | 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-07-29 | 8-K | 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-07-17 | 8-K | 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 5.07 — Submission of Matters to a Vote of Security Holders 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-06-22 | 8-K | 8.01 — Other Events | EDGAR |
| 2026-04-22 | 8-K | 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-04-09 | 8-K | 4.02 — Non-Reliance on Previously Issued Financial Statements or a Related Audit Report or Completed Interim Review | EDGAR |
| 2026-03-05 | 8-K | 4.01 — Changes in Registrant's Certifying Accountant 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-02-25 | 8-K | 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers | EDGAR |
| 2026-02-10 | 8-K | 1.01 — Entry into a Material Definitive Agreement 3.02 — Unregistered Sales of Equity Securities 7.01 — Regulation FD Disclosure 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-12-22 | 8-K | 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
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