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, Q1 2026
Institutional positions in Perma Fix Environmental Services Inc as of Mar 31, 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
- 85
- +4 vs. Q4 2025
- Shares held
- 7.57M
- +827.5K (+12.3%) vs. Q4 2025
- Total value
- $80.9M
- −$4.00M (−4.7%) vs. Q4 2025
- New holders
- 17
- 20 more added
- Sold out
- 13
- 26 more reduced
3 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: 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 | $75.0M |
| Q2 2025 | 70 | $70.4M |
| Q1 2025 | 76 | $49.4M |
| Q4 2024 | 74 | $81.6M |
| Q3 2024 | 68 | $71.2M |
| Q2 2024 | 58 | $48.8M |
| Q1 2024 | 41 | $36.9M |
| Q4 2023 | 43 | $27.4M |
| 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, Q1 2026
Shares, value and share of portfolio for each institution holding Perma Fix Environmental Services Inc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Morgan Dempsey Capital Management LLC | 1 | $11 | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 1 | $11 | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 2 | $22 | 0.00% | +2 | New |
| CoreCap Advisors, LLC | 5 | $53 | 0.00% | 00.0% | Unchanged |
| Sunbelt Securities, Inc. | 7 | $75 | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 8 | $86 | 0.00% | 00.0% | Unchanged |
| Essential Partners LLC | 9 | $96 | 0.00% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 14 | $150 | 0.00% | +14 | New |
| Rothschild Investment LLC | 20 | $214 | 0.00% | 00.0% | Unchanged |
| Torren Management, LLC | 53 | $567 | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 71 | $759 | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 50 | $1.00K | 0.00% | −977−95.1% | Reduced |
| Jones Financial Companies LLLP | 140 | $1.49K | 0.00% | +140 | New |
| Optiver Holding B.V. | 170 | $1.82K | 0.00% | −128−43.0% | Reduced |
| CWM, LLC | 195 | $2.08K | 0.00% | +78+66.7% | Added |
| GAMMA Investing LLC | 214 | $2.29K | 0.00% | 00.0% | Unchanged |
| Rockefeller Capital Management L.P. | 500 | $5.34K | 0.00% | 00.0% | Unchanged |
| Sterling Capital Management LLC | 501 | $5.36K | 0.00% | −359−41.7% | Reduced |
| Citigroup Inc | 819 | $8.76K | 0.00% | +428+109.5% | Added |
| California State Teachers Retirement System | 936 | $10.0K | 0.00% | −129−12.1% | Reduced |
| Ameritas Investment Partners, Inc. | 1,232 | $13.2K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 1,528 | $16.3K | 0.00% | −1,654−52.0% | Reduced |
| Legal & General Group Plc | 1,558 | $16.7K | 0.00% | −53−3.3% | Reduced |
| Russell Investments Group, Ltd. | 1,732 | $18.5K | 0.00% | +120+7.4% | Added |
| Barclays PLC | 3,273 | $35.0K | 0.00% | −23,708−87.9% | Reduced |
| BNP Paribas Arbitrage, SA | 3,669 | $39.2K | 0.00% | −151−4.0% | Reduced |
| New York State Common Retirement Fund | 4,400 | $47.0K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 4,726 | $50.5K | 0.00% | −978−17.1% | Reduced |
| MetLife Investment Management | 4,922 | $52.6K | 0.00% | −4,232−46.2% | Reduced |
| Capital Advisors, Ltd. LLC | 5,000 | $53.0K | 0.01% | +5,000 | New |
| Police & Firemen's Retirement System of New Jersey | 5,649 | $60.4K | 0.00% | 00.0% | Unchanged |
| Vanguard Global Advisers, LLC | 5,742 | $61.4K | 0.00% | +5,742 | New |
| JPMorgan Chase & Co | 7,082 | $73.7K | 0.00% | −58−0.8% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 8,223 | $87.9K | 0.00% | +204+2.5% | Added |
| Vident Advisory, LLC | 10,390 | $111.1K | 0.00% | +10,390 | New |
| American Century Companies Inc | 10,692 | $114.3K | 0.00% | +10,692 | New |
| Susquehanna International Group, LLP | 11,098 | $118.6K | 0.00% | −87,171−88.7% | Reduced |
| Invesco Ltd. | 11,135 | $119.0K | 0.00% | +11,135 | New |
| Price T Rowe Associates Inc | 11,202 | $120.0K | 0.00% | 00.0% | Unchanged |
| Greenhaven Road Investment Management, L.P. | 11,303 | $120.5K | 0.08% | +11,303 | New |
| Fermata Advisors, LLC | 12,936 | $138.3K | 0.03% | +301+2.4% | Added |
| Deutsche Bank AG | 14,621 | $156.3K | 0.00% | +2,628+21.9% | Added |
| Advisor Group Holdings, Inc. | 16,000 | $171.0K | 0.00% | +100+0.6% | Added |
| Gsa Capital Partners LLP | 16,097 | $172.0K | 0.01% | +16,097 | New |
| Quent Capital, LLC | 16,199 | $173.2K | 0.01% | 00.0% | Unchanged |
| IMC-Chicago, LLC | 16,933 | $181.0K | 0.00% | +16,933 | New |
| Oxler Private Wealth LLC | 17,005 | $181.8K | 0.06% | 00.0% | Unchanged |
| Bailard, Inc. | 17,800 | $190.3K | 0.00% | 00.0% | Unchanged |
| Guidance Capital, Inc | 16,302 | $210.8K | 0.05% | −883−5.1% | Reduced |
| Brown Advisory Inc | 20,000 | $213.8K | 0.00% | +20,000 | New |
| Sentinus, LLC | 20,600 | $220.2K | 0.02% | −145,700−87.6% | Reduced |
| Wells Fargo & Company | 20,830 | $222.7K | 0.00% | −11,296−35.2% | Reduced |
| Rhumbline Advisers | 21,410 | $228.9K | 0.00% | −13−0.1% | Reduced |
| Nuveen, LLC | 22,454 | $240.0K | 0.00% | 00.0% | Unchanged |
| XTX Topco Ltd | 23,227 | $248.3K | 0.00% | +23,227 | New |
| Morgan Stanley | 26,718 | $285.6K | 0.00% | −40,013−60.0% | Reduced |
| Jane Street Group, LLC | 28,525 | $304.9K | 0.00% | −115,714−80.2% | Reduced |
| GatePass Capital, LLC | 29,742 | $317.9K | 0.15% | −35,000−54.1% | Reduced |
| Simplex Trading, LLC | 31,318 | $334.8K | 0.01% | +31,318 | New |
| Corsair Capital Management, L.P. | 37,649 | $402.5K | 0.06% | +16,000+73.9% | Added |
| Bank of New York Mellon Corp | 40,379 | $431.6K | 0.00% | −3,680−8.4% | Reduced |
| Charles Schwab Investment Management Inc | 43,590 | $466.0K | 0.00% | −5,017−10.3% | Reduced |
| Bank of America Corp | 45,190 | $483.1K | 0.00% | +1,524+3.5% | Added |
| Pale Fire Capital SE | 48,626 | $519.8K | 0.05% | +5,406+12.5% | Added |
| Squarepoint Ops LLC | 51,940 | $555.2K | 0.00% | +15,098+41.0% | Added |
| UBS Group AG | 62,082 | $663.7K | 0.00% | +33,118+114.3% | Added |
| D. E. Shaw & Co., Inc. | 62,989 | $673.4K | 0.00% | −33,020−34.4% | Reduced |
| Citadel Advisors LLC | 69,313 | $741.0K | 0.00% | +33,184+91.8% | Added |
| Vanguard Portfolio Management LLC | 100,318 | $1.07M | 0.00% | +100,318 | New |
| Vanguard Fiduciary Trust Co | 119,253 | $1.27M | 0.00% | +119,253 | New |
| MYDA Advisors LLC | 120,000 | $1.28M | 0.30% | +20,000+20.0% | Added |
| North Star Investment Management Corp. | 120,532 | $1.29M | 0.08% | +116,132+2,639.4% | Added |
| Northern Trust Corp | 129,568 | $1.39M | 0.00% | +6,059+4.9% | Added |
| Goldman Sachs Group Inc | 142,687 | $1.53M | 0.00% | +70,750+98.3% | Added |
| Dimensional Fund Advisors LP | 163,787 | $1.75M | 0.00% | −1,000−0.6% | Reduced |
| Group One Trading, L.P. | 247,674 | $2.65M | 0.09% | +243,647+6,050.3% | Added |
| Potomac Capital Management, Inc. | 296,700 | $3.17M | 2.77% | −45,100−13.2% | Reduced |
| State Street Corp | 335,547 | $3.59M | 0.00% | +23,280+7.5% | Added |
| Diamond Hill Capital Management Inc | 355,978 | $3.81M | 0.02% | −30,865−8.0% | Reduced |
| Heartland Advisors Inc | 400,000 | $4.28M | 0.22% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 432,701 | $4.63M | 0.00% | +9,811+2.3% | Added |
| Vanguard Capital Management LLC | 759,435 | $8.12M | 0.00% | +759,435 | New |
| Prescott Group Capital Management, L.L.C. | 777,142 | $8.31M | 0.83% | 00.0% | Unchanged |
| Mak Capital One LLC | 918,673 | $9.82M | 1.63% | 00.0% | Unchanged |
| BlackRock, Inc. | 1,170,303 | $12.5M | 0.00% | −27,682−2.3% | Reduced |
| EAM Investors, LLC | 0 | $0 | 0.00% | −64,784−100.0% | Sold out |
| Ancora Advisors, LLC | 0 | $0 | 0.00% | −57,927−100.0% | Sold out |
| SEI Investments Co | 0 | $0 | 0.00% | −39,442−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −38,617−100.0% | Sold out |
| ARS Investment Partners, LLC | 0 | $0 | 0.00% | −36,145−100.0% | Sold out |
| Los Angeles Capital Management LLC | 0 | $0 | 0.00% | −22,960−100.0% | Sold out |
| Brookwood Investment Group LLC | 0 | $0 | 0.00% | −20,873−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −14,585−100.0% | Sold out |
| Flagship Harbor Advisors, LLC | 0 | $0 | 0.00% | −910−100.0% | Sold out |
| Amalgamated Bank | 0 | $0 | 0.00% | −544−100.0% | Sold out |
| SRS Capital Advisors, Inc. | 0 | $0 | 0.00% | −9−100.0% | Sold out |
| EverSource Wealth Advisors, LLC | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −1−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |
| Perritt Capital Management Inc | – | – | – | – | Not filed |