Standard Nuclear, Inc. (STDN) Ownership
STDN ownership summary
as of October 18, 2026- Institutions
- 6.5% of shares outstanding
- Insiders
- 63.16% of shares outstanding
- Shares outstanding
- 149.1M
- Float
- 51.9M shares available to trade
- Short interest
- 2.30% 3.1M shares short
- Days to cover
- 4.07 short interest up 36.4% vs prior month
- Institutions 6.48%
- Insiders 63.16%
- Other investors 30.36%
STDN top mutual fund and ETF holders
10 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | WisdomTree Uranium & Nucler Ey ETF $ Acc | 0.18% | 287K | $3.5M | −1,800 (−0.6%) | September 30, 2026 |
| 2 | Range Nuclear Renaissance ETF | 0.15% | 236K | $2.9M | — | September 30, 2026 |
| 3 | Vanguard MStar Total Stk Mkt Idx Invest | 0.05% | 86K | $1.1M | — | August 31, 2026 |
| 4 | Portland Replacement of Fssl Ful Alt F | 0.05% | 78K | $955,345 | — | September 30, 2026 |
| 5 | Destinations Small-Mid Cap Equity I | 0.01% | 16K | $193,686 | +15,915 (0.0%) | September 30, 2026 |
| 6 | West Bay Global Small Cap Opps I USD Acc | <0.01% | 4,500 | $54,765 | +4,500 (0.0%) | August 31, 2026 |
| 7 | Vanguard Balanced Index Inv | <0.01% | 1,463 | $17,805 | — | August 31, 2026 |
| 8 | Vanguard MStar Inst Ttl StkMktIdxInstlPl | <0.01% | 1,297 | $15,784 | — | August 31, 2026 |
| 9 | Vanguard U.S. Eq Idx £ Acc | <0.01% | 1,049 | $12,766 | — | August 31, 2026 |
| 10 | Infras CptlNuclearRenaissanceUCITSUSDAcc | <0.01% | 994 | $12,097 | — | September 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
Who owns STDN
Institutional investors own 6.5% of Standard Nuclear's shares and insiders 63.16%. Short interest is 2.30% of the float, or 4.07 days of average trading volume.
Related: STDN analyst forecast. See the STDN stock overview for the latest quote and news.
STDN ownership FAQ
What percentage of Standard Nuclear is owned by institutions?
Institutions hold 6.5% of Standard Nuclear's shares outstanding; insiders hold 63.16%.
Which funds own Standard Nuclear?
The largest fund holders of Standard Nuclear are WisdomTree Uranium & Nucler Ey ETF $ Acc (0.18%), Range Nuclear Renaissance ETF (0.15%), Vanguard MStar Total Stk Mkt Idx Invest (0.05%), Portland Replacement of Fssl Ful Alt F (0.05%), Destinations Small-Mid Cap Equity I (0.01%).
What is Standard Nuclear's short interest?
3.1M shares of Standard Nuclear were sold short, 2.30% of the float; at the average daily volume it would take 4.07 days to cover.
How many shares of Standard Nuclear are outstanding?
Standard Nuclear has 149.1M shares outstanding, of which 51.9M are in the public float.