Perma-Fix Environmental SVCSPESI
13F holders, Q1 2026 (March 31)85holders +1
13new positions
12sold out
2famous investors
$10.69avg. 13F price*
At the end of Q1 2026, 85 institutions reported holding Perma-Fix Environmental SVCS (PESI) in their 13F filings, up 1 from Q4 2025. 13 opened new positions and 12 sold out. The largest holders were BlackRock, Inc. ($12.5M), Mak Capital One LLC ($9.8M) and Prescott Group Capital Management, L.L.C. ($8.3M). 2 famous investors held it, including David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Perma-Fix Environmental SVCS
- CUSIP
- 714157203
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 13 | $1.7M |
| Exits | 12 | $3.8M |
All 13F filers, Q4 2025 → Q1 2026: 754,119 shares bought and 911,380 shares sold, net −157,261 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 85 holders
| BlackRock, Inc. | 0.00% | Reduce -2.3% | 1,170,303 | $12.5M |
| Mak Capital One LLC | 1.63% | No change | 918,673 | $9.8M |
| Prescott Group Capital Management, L.L.C. | 0.83% | No change | 777,142 | $8.3M |
| Vanguard Capital Management LLC | 0.00% | — | 759,435 | $8.1M |
| Geode Capital Management, LLC | 0.00% | Add +2.3% | 432,701 | $4.6M |
| Heartland Advisors Inc. | 0.22% | No change | 400,000 | $4.3M |
| Diamond Hill Capital Management, LLC (Investment Advisor) | 0.02% | Reduce -8.0% | 355,978 | $3.8M |
| State Street Corp. | 0.00% | Add +7.5% | 335,547 | $3.6M |
| Potomac Capital Management, Inc. | 2.77% | Reduce -13.2% | 296,700 | $3.2M |
| Group One Trading LLC | 0.09% | Add +6050.3% | 247,674 | $2.6M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -0.6% | 163,787 | $1.8M |
| Goldman Sachs Group Inc. | 0.00% | Add +98.3% | 142,687 | $1.5M |
| Northern Trust Corp. | 0.00% | Add +4.9% | 129,568 | $1.4M |
| North Star Investment Management Corp. | 0.08% | Add +2639.4% | 120,532 | $1.3M |
| MYDA Advisors LLC | 0.30% | Add +20.0% | 120,000 | $1.3M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 119,253 | $1.3M |
| Vanguard Portfolio Management LLC | 0.00% | — | 100,318 | $1.1M |
| Citadel Advisors | 0.00% | Add +91.8% | 69,313 | $741K |
| D. E. Shaw & Co. | 0.00% | Reduce -34.4% | 62,989 | $673K |
| UBS Group AG | 0.00% | Add +114.3% | 62,082 | $664K |
| Squarepoint Ops LLC | 0.00% | Add +41.0% | 51,940 | $555K |
| Pale Fire Capital SE | 0.05% | Add +12.5% | 48,626 | $520K |
| Bank of America Corp. | 0.00% | Add +3.5% | 45,190 | $483K |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -10.3% | 43,590 | $466K |
| Bank of New York Mellon Corp | 0.00% | Reduce -8.3% | 40,379 | $432K |
| Corsair Capital Management, L.P. | 0.06% | Add +73.9% | 37,649 | $402K |
| Simplex Trading, LLC | 0.01% | New | 31,318 | $335K |
| GatePass Capital, LLC | 0.16% | Reduce -54.1% | 29,742 | $318K |
| Jane Street Group, LLC | 0.00% | Reduce -80.2% | 28,525 | $305K |
| Morgan Stanley | 0.00% | Reduce -60.0% | 26,718 | $286K |
| XTX Topco Ltd | 0.00% | New | 23,227 | $248K |
| Nuveen, LLC | 0.00% | No change | 22,454 | $240K |
| Rhumbline Advisers | 0.00% | Reduce -0.1% | 21,410 | $229K |
| Wells Fargo & Company | 0.00% | Reduce -35.2% | 20,830 | $223K |
| Rothschild Wealth LLC | 0.02% | Reduce -87.6% | 20,600 | $220K |
| Brown Advisory Inc. | 0.00% | New | 20,000 | $214K |
| Guidance Capital, Inc. | 0.05% | Reduce -5.1% | 16,302 | $211K |
| Bailard, Inc. | 0.00% | No change | 17,800 | $190K |
| Oxler Private Wealth LLC | 0.06% | No change | 17,005 | $182K |
| IMC-Chicago, LLC | 0.00% | New | 16,933 | $181K |
| Quent Capital, LLC | 0.01% | No change | 16,199 | $173K |
| Gsa Capital Partners LLP | 0.01% | New | 16,097 | $172K |
| Osaic Holdings, Inc. | 0.00% | Add +0.6% | 16,000 | $171K |
| Deutsche Bank AG | 0.00% | Add +21.9% | 14,621 | $156K |
| Fermata Advisors, LLC | 0.03% | Add +2.4% | 12,936 | $138K |
| Greenhaven Road Investment Management, L.P. | 0.08% | New | 11,303 | $120K |
| T. Rowe Price Associates Inc. | 0.00% | No change | 11,202 | $120K |
| Invesco Ltd. | 0.00% | New | 11,135 | $119K |
| Susquehanna International Group, LLP | 0.00% | Reduce -88.7% | 11,098 | $119K |
| American Century Companies Inc. | 0.00% | New | 10,692 | $114K |
| Vident Advisory, LLC | 0.00% | New | 10,390 | $111K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +2.5% | 8,223 | $88K |
| JPMorgan Chase & Co. | 0.00% | Reduce -0.8% | 7,082 | $74K |
| Vanguard Global Advisers, LLC | 0.00% | — | 5,742 | $61K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 5,649 | $60K |
| Capital Advisors, Ltd. LLC | 0.01% | New | 5,000 | $53K |
| MetLife Investment Management, LLC | 0.00% | Reduce -46.2% | 4,922 | $53K |
| FMR LLC | 0.00% | Reduce -17.1% | 4,726 | $51K |
| New York State Common Retirement Fund | 0.00% | No change | 4,400 | $47K |
| BNP Paribas Financial Markets | 0.00% | Reduce -4.0% | 3,669 | $39K |
| Barclays PLC | 0.00% | Reduce -87.9% | 3,273 | $35K |
| Russell Investments Group, Ltd. | 0.00% | Add +7.4% | 1,732 | $19K |
| Legal & General Group Plc | 0.00% | Reduce -3.3% | 1,558 | $17K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -52.0% | 1,528 | $16K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 1,232 | $13K |
| California State Teachers Retirement System | 0.00% | Reduce -12.1% | 936 | $10K |
| Citigroup Inc. | 0.00% | Add +109.5% | 819 | $9K |
| Sterling Capital Management LLC | 0.00% | Reduce -41.7% | 501 | $5K |
| Rockefeller Capital Management L.P. | 0.00% | No change | 500 | $5K |
| GAMMA Investing LLC | 0.00% | No change | 214 | $2K |
| Cwm, LLC | 0.00% | Add +66.7% | 195 | $2K |
| Optiver Holding B.V. | 0.00% | Reduce -43.0% | 170 | $2K |
| Jones Financial Companies LLLP | 0.00% | New | 140 | $1K |
| Royal Bank of Canada | 0.00% | Reduce -95.1% | 50 | $1K |
| Nisa Investment Advisors, LLC | 0.00% | No change | 71 | $759 |
| Torren Management, LLC | 0.00% | No change | 53 | $567 |
| Rothschild Investment LLC | 0.00% | No change | 20 | $214 |
| Caitong International Asset Management Co., Ltd | 0.00% | New | 14 | $150 |
| Essential Partners LLC | 0.00% | No change | 9 | $96 |
| PNC Financial Services Group, Inc. | 0.00% | No change | 8 | $86 |
| Sunbelt Securities, Inc. | 0.00% | No change | 7 | $75 |
| CoreCap Advisors, LLC | 0.00% | No change | 5 | $53 |
| Farther Finance Advisors, LLC | 0.00% | New | 2 | $22 |
| Morgan Dempsey Capital Management LLC | 0.00% | No change | 1 | $11 |
| SBI Securities Co., Ltd. | 0.00% | No change | 1 | $11 |
"% of holder's portfolio" is PESI's weight in each manager's 13F, not the share of Perma-Fix Environmental SVCS the manager owns.