Perma-Fix Environmental Services (PESI)
Treats radioactive and mixed waste while delivering nuclear field services.
$16.53
After hours−0.07 (−0.42%)
At close$16.60(−4.27%)
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13F · 13D/G · Form 4
| Institutions | 44.85% | 9.52M shares | |
|---|---|---|---|
| 94 holders · as of Jun 30, 2026 | |||
| Insiders | 10.62% | 2.25M shares | |
| 13 holders · as of Jul 14, 2026 | |||
| Other | 44.53% | 9.45M shares | |
| remainder | |||
21.22M company shares as of Sep 22, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
13F, as of Jun 30, 2026
94 holders · 9.52M shares · 17 new positions · 49 increased · 19 reduced · 11 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 1.25M | 5.90% | +82.5K | Aug 7, 2026 |
| Mak Capital One LLC | 1.03M | 4.87% | +114.3K | Aug 14, 2026 |
| Vanguard Capital Management LLC | 811.7K | 3.83% | +52.3K | Aug 13, 2026 |
| Prescott Group Capital Management, L.L.C. | 777.1K | 3.66% | 0 | Aug 7, 2026 |
| Diamond Hill Capital Management Inc | 642.5K | 3.03% | +286.6K | Aug 6, 2026 |
| Kennedy Capital Management LLC | 610.9K | 2.88% | +610.9Knew | Aug 14, 2026 |
| Potomac Capital Management, Inc. | 477.0K | 2.25% | +180.3K | Aug 14, 2026 |
| Geode Capital Management, LLC | 455.2K | 2.15% | +22.5K | Aug 12, 2026 |
13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 6.40% | 1.01M | Nov 8, 2024 | |
| MAK Capital Fund LP | 5.50% | 1.16M | 13G | Aug 6, 2026 |
| HOLD Alapkezelo Zrt. | 5.10% | 944.3K | 13G | Mar 30, 2026 |
Form 4
Latest trades
No open-market trades in the last 12 months.
House and Senate disclosures
Not reported.