Perma-fix Environmental Services, Inc. · NASDAQ:PESI
Perma-fix Environmental Services, Inc. shareholders
As of Jun 30, 2026, 86 institutions reported holding Perma-fix Environmental Services, Inc., 44.6% of its shares. Largest: BlackRock, Vanguard and Mak Capital One LLC. New holders, exits, insiders and big stakes, each with its filing.
| Holder | Shares | % of Perma-fix Environmental Services, Inc. | Change | Filed |
|---|---|---|---|---|
| BlackRock | 1.25M | 5.9% | +82,453 | Aug 7, 2026 |
| Vanguard | 1.06M | 5.0% | +77,044 | Aug 13, 2026 |
| Mak Capital One LLC | 1.03M | 4.9% | +114K | Aug 14, 2026 |
| Prescott Group Capital Management, L.L.C. | 777K | 3.7% | no change | Aug 7, 2026 |
| Diamond Hill Capital Management, LLC (Investment Advisor) | 643K | 3.0% | +287K | Aug 6, 2026 |
| Kennedy Capital Management LLC | 611K | 2.9% | new | Aug 14, 2026 |
| Potomac Capital Management, Inc. | 477K | 2.2% | +180K | Aug 14, 2026 |
| Geode Capital | 455K | 2.1% | +22,455 | Aug 12, 2026 |
| Heartland Advisors Inc | 400K | 1.9% | no change | Aug 11, 2026 |
| State Street | 350K | 1.6% | +14,197 | Aug 7, 2026 |