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.
13F holders, Q2 2026
Institutional positions in Perma Fix Environmental Services Inc as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 88
- +5 vs. Q1 2026
- Shares held
- 9.47M
- +1.90M (+25.1%) vs. Q1 2026
- Total value
- $135.2M
- +$54.3M (+67.1%) vs. Q1 2026
- New holders
- 14
- 34 more added
- Sold out
- 9
- 17 more reduced
2 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting PESI on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 88 | $135.2M |
| Q1 2026 | 85 | $80.9M |
| Q4 2025 | 84 | $99.2M |
| Q3 2025 | 77 | $75.1M |
| Q2 2025 | 70 | $70.4M |
| Q1 2025 | 76 | $49.4M |
| Q4 2024 | 74 | $81.6M |
| Q3 2024 | 68 | $71.2M |
| Q2 2024 | 58 | $48.9M |
| Q1 2024 | 41 | $37.0M |
| Q4 2023 | 43 | $27.5M |
| Q3 2023 | 43 | $34.9M |
| Q2 2023 | 37 | $35.8M |
| Q1 2023 | 32 | $41.6M |
| Q4 2022 | 30 | $12.7M |
| Q3 2022 | 28 | $17.0M |
| Q2 2022 | 29 | $19.7M |
| Q1 2022 | 29 | $20.7M |
| Q4 2021 | 29 | $22.1M |
| Q3 2021 | 24 | $21.3M |
| Q2 2021 | 24 | $22.8M |
| Q1 2021 | 24 | $23.8M |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Perma Fix Environmental Services Inc; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 1,252,756 | $17.9M | 0.00% | +82,453+7.0% | Added |
| Mak Capital One LLC | 1,032,958 | $14.8M | 2.07% | +114,285+12.4% | Added |
| Vanguard Capital Management LLC | 811,743 | $11.6M | 0.00% | +52,308+6.9% | Added |
| Prescott Group Capital Management, L.L.C. | 777,142 | $11.1M | 0.96% | 00.0% | Unchanged |
| Diamond Hill Capital Management Inc | 642,533 | $9.18M | 0.07% | +286,555+80.5% | Added |
| Kennedy Capital Management, Inc. | 610,903 | $8.73M | 0.15% | +610,903 | New |
| Potomac Capital Management, Inc. | 477,000 | $6.82M | 4.99% | +180,300+60.8% | Added |
| Geode Capital Management, LLC | 455,156 | $6.51M | 0.00% | +22,455+5.2% | Added |
| Heartland Advisors Inc | 400,000 | $5.72M | 0.25% | 00.0% | Unchanged |
| State Street Corp | 349,744 | $5.00M | 0.00% | +14,197+4.2% | Added |
| Dimensional Fund Advisors LP | 191,063 | $2.73M | 0.00% | +27,276+16.7% | Added |
| Goldman Sachs Group Inc | 162,755 | $2.33M | 0.00% | +20,068+14.1% | Added |
| Susquehanna International Group, LLP | 156,934 | $2.24M | 0.00% | +145,836+1,314.1% | Added |
| Citadel Advisors LLC | 152,626 | $2.18M | 0.00% | +83,313+120.2% | Added |
| Northern Trust Corp | 141,639 | $2.02M | 0.00% | +12,071+9.3% | Added |
| Vanguard Fiduciary Trust Co | 123,040 | $1.76M | 0.00% | +3,787+3.2% | Added |
| Group One Trading, L.P. | 122,611 | $1.75M | 0.05% | −125,063−50.5% | Reduced |
| Vanguard Portfolio Management LLC | 121,267 | $1.73M | 0.00% | +20,949+20.9% | Added |
| North Star Investment Management Corp. | 120,532 | $1.72M | 0.09% | 00.0% | Unchanged |
| Diametric Capital, LP | 114,714 | $1.64M | 0.17% | +114,714 | New |
| MYDA Advisors LLC | 90,000 | $1.29M | 0.31% | −30,000−25.0% | Reduced |
| CM Wealth Advisors LLC | 87,839 | $1.26M | 0.23% | +87,839 | New |
| XTX Topco Ltd | 62,888 | $898.7K | 0.01% | +39,661+170.8% | Added |
| Owls Nest Partners IA, LLC | 56,555 | $808.2K | 0.26% | +56,555 | New |
| Pale Fire Capital SE | 55,627 | $794.9K | 0.06% | +7,001+14.4% | Added |
| Morgan Stanley | 53,084 | $758.6K | 0.00% | +26,366+98.7% | Added |
| Jane Street Group, LLC | 46,651 | $666.6K | 0.00% | +18,126+63.5% | Added |
| Charles Schwab Investment Management Inc | 45,249 | $646.6K | 0.00% | +1,659+3.8% | Added |
| GatePass Capital, LLC | 44,742 | $639.4K | 0.24% | +15,000+50.4% | Added |
| Corsair Capital Management, L.P. | 42,649 | $609.5K | 0.08% | +5,000+13.3% | Added |
| Bank of America Corp | 41,371 | $591.2K | 0.00% | −3,819−8.5% | Reduced |
| SEI Investments Co | 41,022 | $586.2K | 0.00% | +41,022 | New |
| Bank of New York Mellon Corp | 38,101 | $544.5K | 0.00% | −2,278−5.6% | Reduced |
| Simplex Trading, LLC | 31,633 | $452.0K | 0.01% | +315+1.0% | Added |
| UBS Group AG | 31,493 | $450.0K | 0.00% | −30,589−49.3% | Reduced |
| Squarepoint Ops LLC | 30,976 | $442.6K | 0.00% | −20,964−40.4% | Reduced |
| Wells Fargo & Company | 29,303 | $418.7K | 0.00% | +8,473+40.7% | Added |
| D. E. Shaw & Co., Inc. | 24,858 | $355.2K | 0.00% | −38,131−60.5% | Reduced |
| Alliancebernstein L.P. | 32,850 | $351.2K | 0.00% | +32,850 | New |
| Brown Advisory Inc | 23,333 | $333.4K | 0.00% | +3,333+16.7% | Added |
| Nuveen, LLC | 22,454 | $320.9K | 0.00% | 00.0% | Unchanged |
| Trexquant Investment LP | 21,948 | $313.6K | 0.00% | +21,948 | New |
| Rhumbline Advisers | 20,879 | $298.4K | 0.00% | −531−2.5% | Reduced |
| Sentinus, LLC | 20,600 | $294.4K | 0.02% | 00.0% | Unchanged |
| Quadrature Capital Ltd | 18,967 | $271.0K | 0.00% | +18,967 | New |
| Fifth Lane Capital, LP | 18,000 | $257.2K | 15.77% | +18,000 | New |
| Guidance Capital, Inc | 16,683 | $256.4K | 0.05% | +381+2.3% | Added |
| Bailard, Inc. | 17,800 | $254.4K | 0.01% | 00.0% | Unchanged |
| Oxler Private Wealth LLC | 17,005 | $243.0K | 0.07% | 00.0% | Unchanged |
| IMC-Chicago, LLC | 16,465 | $235.3K | 0.00% | −468−2.8% | Reduced |
| Quent Capital, LLC | 16,199 | $231.5K | 0.01% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 15,900 | $227.2K | 0.00% | −100−0.6% | Reduced |
| Deutsche Bank AG | 15,366 | $219.6K | 0.00% | +745+5.1% | Added |
| Price T Rowe Associates Inc | 11,681 | $167.0K | 0.00% | +479+4.3% | Added |
| Vident Advisory, LLC | 10,390 | $148.5K | 0.00% | 00.0% | Unchanged |
| MetLife Investment Management | 9,410 | $134.5K | 0.00% | +4,488+91.2% | Added |
| Russell Investments Group, Ltd. | 8,731 | $124.8K | 0.00% | +6,999+404.1% | Added |
| Citigroup Inc | 8,239 | $117.7K | 0.00% | +7,420+906.0% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 8,115 | $116.0K | 0.00% | −108−1.3% | Reduced |
| JPMorgan Chase & Co | 7,469 | $98.1K | 0.00% | +387+5.5% | Added |
| Vanguard Global Advisers, LLC | 5,742 | $82.1K | 0.00% | 00.0% | Unchanged |
| Police & Firemen's Retirement System of New Jersey | 5,649 | $80.7K | 0.00% | 00.0% | Unchanged |
| Capital Advisors, Ltd. LLC | 5,000 | $71.0K | 0.01% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 4,400 | $62.9K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 4,181 | $59.7K | 0.00% | −545−11.5% | Reduced |
| Persistent Asset Partners Ltd | 3,912 | $55.9K | 0.02% | +3,912 | New |
| Barclays PLC | 2,708 | $38.7K | 0.00% | −565−17.3% | Reduced |
| BNP Paribas Arbitrage, SA | 2,482 | $35.5K | 0.00% | −1,187−32.4% | Reduced |
| Tower Research Capital LLC (TRC) | 1,784 | $25.5K | 0.00% | +256+16.8% | Added |
| Legal & General Group Plc | 1,558 | $22.3K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 1,232 | $17.6K | 0.00% | 00.0% | Unchanged |
| Global Retirement Partners, LLC | 744 | $10.6K | 0.00% | +744 | New |
| Royal Bank of Canada | 579 | $9.00K | 0.00% | +529+1,058.0% | Added |
| California State Teachers Retirement System | 243 | $3.47K | 0.00% | −693−74.0% | Reduced |
| GAMMA Investing LLC | 214 | $3.06K | 0.00% | 00.0% | Unchanged |
| Sterling Capital Management LLC | 101 | $1.44K | 0.00% | −400−79.8% | Reduced |
| SRS Capital Advisors, Inc. | 90 | $1.29K | 0.00% | +90 | New |
| Nisa Investment Advisors, LLC | 71 | $1.01K | 0.00% | 00.0% | Unchanged |
| Torren Management, LLC | 53 | $757 | 0.00% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 48 | $686 | 0.00% | +34+242.9% | Added |
| EverSource Wealth Advisors, LLC | 32 | $457 | 0.00% | +32 | New |
| Rothschild Investment LLC | 20 | $286 | 0.00% | 00.0% | Unchanged |
| Essential Partners LLC | 9 | $129 | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 5 | $72 | 0.00% | +5 | New |
| CoreCap Advisors, LLC | 5 | $71 | 0.00% | 00.0% | Unchanged |
| Optiver Holding B.V. | 2 | $29 | 0.00% | −168−98.8% | Reduced |
| Morgan Dempsey Capital Management LLC | 1 | $14 | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 1 | $14 | 0.00% | 00.0% | Unchanged |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −16,097−100.0% | Sold out |
| Fermata Advisors, LLC | 0 | $0 | 0.00% | −12,936−100.0% | Sold out |
| Greenhaven Road Investment Management, L.P. | 0 | $0 | 0.00% | −11,303−100.0% | Sold out |
| Invesco Ltd. | 0 | $0 | 0.00% | −11,135−100.0% | Sold out |
| American Century Companies Inc | 0 | $0 | 0.00% | −10,692−100.0% | Sold out |
| Rockefeller Capital Management L.P. | 0 | $0 | 0.00% | −500−100.0% | Sold out |
| Jones Financial Companies LLLP | 0 | $0 | 0.00% | −140−100.0% | Sold out |
| The PNC Financial Services Group, Inc. | 0 | $0 | 0.00% | −8−100.0% | Sold out |
| Farther Finance Advisors, LLC | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| CWM, LLC | – | – | – | – | Not filed |
| Sunbelt Securities, Inc. | – | – | – | – | Not filed |