STDN (Standard Nuclear, Inc.)
Insider Trading Activity
Every open-market purchase and sale reported by STDN officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-28 | Seth Michael Cohen | Director | A | — | — |
| 2026-08-14 | Seth Michael Cohen | Director | A | — | — |
| 2026-07-30 | Corey L. Nobile | 10%+ Owner | C | — | — |
| 2026-07-23 | ST-1014 Fund I, a series of Fundomo Syndicates, LP | 10%+ Owner | C | — | — |
| 2026-07-22 | Welara Capital Partners LLC Series 3 | 10%+ Owner | C | — | — |
| 2026-07-22 | Kurt Amir Terrani | CEO and Director | G | — | — |
| 2026-07-22 | Fundomo SN-002, LP | 10%+ Owner | C | — | — |
| 2026-07-21 | Fundomo SN-002, LP | 10%+ Owner | C | — | — |
| 2026-07-17 | KEVIN J HARRILL | Chief Financial Officer | A | — | — |
| 2026-07-17 | Austin Scott Miller | Director | A | — | — |
| 2026-07-17 | Alexander C Matina | Director | A | — | — |
| 2026-07-17 | Keeley Rose Marrocco | Chief Operating Officer | A | — | — |
| 2026-07-17 | Thomas Edward Hendrix | Chairman of the Board | MIXED | — | — |
| 2026-07-17 | Donald A Moul | Director | A | — | — |
| 2026-07-17 | Kurt Amir Terrani | CEO and Director | A | — | — |
| 2026-07-17 | Decisive Point Group, LLC | 10%+ Owner | MIXED | — | — |
| 2026-07-17 | SHAHRAM GHASEMIAN | Chief Legal Officer | A | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | 10%+ Owner | 20,243,094 | — |
| — | 10%+ Owner | 17,849,782 | — |
| — | 10%+ Owner | 17,849,782 | — |
| — | 10%+ Owner | 14,000,000 | — |
| — | 10%+ Owner | 9,144,330 | — |
| — | Chairman of the Board | 8,538,687 | — |
| — | CEO and Director | 7,036,250 | — |
| — | Chief Operating Officer | 3,564,625 | — |
| — | Chief Financial Officer | 1,041,222 | — |
| — | Chief Legal Officer | 40,000 | — |
| — | Director | 16,667 | — |
| — | Director | 15,255 | — |
| — | Director | 11,436 | — |
| — | Director | 10,964 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the STDN quote page; the site-wide leaderboard is on the insider transactions hub.