Institutional HoldersBeta
Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.
Share classes (cover page of the 10-Q filed 2026-07-20, as of 2026-07-20)
| Class | Listed | Shares outstanding | Held by 13F filers | % of class | Holders | CUSIP |
|---|---|---|---|---|---|---|
| Common stock | NUCL · NASDAQ | 29,579,798 | 4,053,313 | 13.7% | 40 | 269710109 |
Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.
Top holders (34 of 34 · 269710117)
change vs 2026-03-31Exited since 2026-03-31 (4 filers; largest 4 shown)
| AQR Arbitrage LLC | −81,477 |
| Caption Management, LLC | −72,252 |
| Ionic Capital Management LLC | −40,823 |
| UBS Group AG | −3,332 |
Large holders from 13D/13G (latest per reporting person, last 2 years)
Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.
| Reporting person | Form | Filed | Event | Shares | % of class |
|---|---|---|---|---|---|
| Alyeska Fund GP, LLC | SCHEDULE 13G | 2026-05-15 | 2026-03-31 | 2,928,352 | 9.9% |
| Alyeska Investment Group, L.P. | SCHEDULE 13G | 2026-05-15 | 2026-03-31 | 2,928,352 | 9.9% |
| Anand Parekh | SCHEDULE 13G | 2026-05-15 | 2026-03-31 | 2,928,352 | 9.9% |
| Sorrells Christopher Dixon | SCHEDULE 13G | 2026-04-28 | 2026-02-24 | 3,027,655 | 9.8% |
| Spring Valley Acquisition Sponsor II, LLC | SCHEDULE 13G | 2026-04-28 | 2026-02-24 | 0 | 0% |
| Supercycle Holdings LLC | SCHEDULE 13G | 2026-04-28 | 2026-02-24 | 3,027,655 | 9.8% |
| Balvinder Kaur Parhar | SCHEDULE 13G | 2026-04-08 | 2026-02-24 | 2,028,671 | 6.86% |
| Naranjan Singh Parhar | SCHEDULE 13G | 2026-04-08 | 2026-02-24 | 2,028,671 | 6.86% |
| Blue Bird Capital Enterprises LLC | SCHEDULE 13D | 2026-03-03 | 2026-02-24 | 6,175,031 | 20.88% |
Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.