Perma Fix Environmental Services Inc
PESI- Exchange
- Nasdaq
- Industry
- Hazardous Waste Management
- SEC CIK
- 0000891532
No open-market purchases or sales by Perma Fix Environmental Services Inc insiders were filed in the last 90 days; 88 institutions reported holding it in 13F filings for Q2 2026, worth $135.2M in total; no superinvestor holds it.
Q2 2025 vs. Q1 2025
How the institutions holding Perma Fix Environmental Services Inc changed between Q1 2025 and Q2 2025.
All holders in Q2 2025All holders in Q1 2025
| Measure | Q1 2025 | Q2 2025 | Change |
|---|---|---|---|
| Holders | 76 | 70 | −6 |
| Shares | 6.75M | 6.69M | −59.4K (−0.9%) |
| Value | $49.4M | $70.4M | +$21.0M (+42.5%) |
New holders (7)
Institutions that held Perma Fix Environmental Services Inc at the end of Q2 2025 but not at the end of Q1 2025.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Mak Capital One LLC | 92,610 | $974.3K | 0.17% |
| Jane Street Group, LLC | 22,059 | $232.1K | 0.00% |
| XTX Topco Ltd | 18,956 | $199.4K | 0.01% |
| Marshall Wace, LLP | 18,405 | $193.6K | 0.00% |
| Raymond James Financial Inc | 1,160 | $12.2K | 0.00% |
| Russell Investments Group, Ltd. | 192 | $2.02K | 0.00% |
| EverSource Wealth Advisors, LLC | 60 | $631 | 0.00% |
Sold out (13)
Institutions that held Perma Fix Environmental Services Inc at the end of Q1 2025 and filed for Q2 2025 without it.
| Institution | Shares, Q1 2025 | Value, Q1 2025 |
|---|---|---|
| Alyeska Investment Group, L.P. | 147,417 | $1.07M |
| Thompson Siegel & Walmsley LLC | 104,778 | $762.0K |
| Squarepoint Ops LLC | 73,014 | $530.8K |
| Goldman Sachs Group Inc | 24,698 | $179.6K |
| Millennium Management LLC | 16,148 | $117.4K |
| Thompson Davis & Co., Inc. | 13,440 | $97.7K |
| Renaissance Technologies LLC | 11,474 | $83.4K |
| Oppenheimer & Co Inc | 10,950 | $79.6K |
| Cubist Systematic Strategies, LLC | 10,569 | $76.8K |
| Simplex Trading, LLC | 8,419 | $61.0K |
| Corebridge Financial, Inc. | 8,284 | $60.2K |
| The PNC Financial Services Group, Inc. | 1,094 | $7.95K |
| Indiana Trust & Investment Management CO | 65 | $473 |