Standard Nuclear, Inc.
Ownership
Ownership Structure
Who owns Standard Nuclear, Inc. (STDN)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 32.9% of the shares are freely tradable; institutional investors hold 5.7%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Morangie Management LLC | 0.03 | 40,265 | +0.0 | 09/30/2026 |
| MN Wealth Advisors LLC | 0.01 | 21,400 | +0.0 | 09/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Heptagon Driehaus US Micro Cap Eq C$ Acc | 0.18 | 288,346 | +0.0 | 09/30/2026 |
| WisdomTree Uranium & Nucler Ey ETF $ Acc | 0.18 | 284,464 | +0.0 | 10/30/2026 |
| Range Nuclear Renaissance ETF | 0.14 | 222,181 | +0.0 | 10/30/2026 |
| Driehaus Micro Cap Growth USD | 0.07 | 116,966 | +0.0 | 09/30/2026 |
| Portland Replacement of Fssl Ful Alt F | 0.05 | 78,500 | +0.0 | 09/30/2026 |
| Adara Smaller Companies | 0.03 | 55,842 | +0.0 | 09/30/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 0.03 | 40,707 | -52.9 | 09/30/2026 |
| Destinations Small-Mid Cap Equity I | 0.01 | 21,865 | +37.4 | 10/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Terrani Kurt Amir | CEO and Director | 5,876,862 | 62,294,737 $ | Oct 17, 2026 | direct |
| Marrocco Keeley Rose | Chief Operating Officer | 3,557,226 | 37,706,596 $ | Oct 17, 2026 | direct |
| Hendrix Thomas Edward | Executive Chairman | 2,639,097 | 27,974,428 $ | Oct 17, 2026 | direct |
| Harrill Kevin J | Chief Financial Officer | 1,555,444 | 16,487,706 $ | Oct 17, 2026 | direct |
| Ghasemian Shahram | Chief Legal Officer | 594,984 | 6,306,830 $ | Oct 15, 2026 | direct |
| Cohen Seth Michael | Director | 13,255 | 140,503 $ | Aug 12, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 17, 2026 | Terrani Kurt Amir | CEO and Director | Other | 110,014 | 12.17 | 1,338,870 |
| Oct 17, 2026 | Marrocco Keeley Rose | Chief Operating Officer | Other | 7,399 | 12.17 | 90,046 |
| Oct 17, 2026 | Harrill Kevin J | Chief Financial Officer | Other | 32,715 | 12.17 | 398,142 |
| Oct 17, 2026 | Hendrix Thomas Edward | Executive Chairman | Other | 95,590 | 12.17 | 1,163,330 |
| Oct 15, 2026 | Ghasemian Shahram | Chief Legal Officer | Other | 5,016 | 12.02 | 60,292 |
| Aug 12, 2026 | Cohen Seth Michael | Director | Other | 13,255 | 0.00 | – |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: November 13, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.