PERMA FIX ENVIRONMENTAL SERVICES INC - PESI
Detailed investor-level table based on 13F positions.
Early Q1 2026 data: only 1 institutional holders reported so far. The full shareholder list will grow as more funds file with the SEC.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | History | Added to | 1,197,985 | 15,082 | 0.0% | 0.0% | 1 | +30,253 | 2.59% | Q4 2025 | Feb 12, 2026 |
| VANGUARD GROUP INC | History | Added to | 968,107 | 12,188 | 0.0% | 0.0% | 2 | +32,165 | 3.44% | Q4 2025 | Jan 29, 2026 |
| MAK CAPITAL ONE LLC | History | Added to | 918,673 | 11,566 | 1.27% | 1.27% | 3 | +103,097 | 12.64% | Q4 2025 | Feb 17, 2026 |
| PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C. | History | No change | 777,142 | 9,784 | 0.91% | 0.83% | 4 | 0 | 0.0% | Q4 2025 | Feb 06, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Added to | 422,890 | 5,325 | 0.0% | 0.0% | 5 | +1,655 | 0.39% | Q4 2025 | Feb 09, 2026 |
| HEARTLAND ADVISORS INC | History | Reduced | 400,000 | 5,036 | 0.27% | 0.24% | 6 | -58,250 | -12.71% | Q4 2025 | Feb 11, 2026 |
| DIAMOND HILL CAPITAL MANAGEMENT INC | History | Reduced | 386,843 | 4,870 | 0.02% | 0.02% | 7 | -14,716 | -3.66% | Q4 2025 | Feb 06, 2026 |
| Potomac Capital Management, Inc. | History | New | 341,800 | 4,303 | 3.46% | — | 8 | +341,800 | New | Q4 2025 | Feb 11, 2026 |
| STATE STREET CORP | History | Added to | 312,267 | 3,931 | 0.0% | 0.0% | 9 | +13,879 | 4.65% | Q4 2025 | Feb 13, 2026 |
| Rothschild Wealth LLC | History | New | 166,300 | 2,093 | 0.2% | — | 11 | +166,300 | New | Q4 2025 | Feb 17, 2026 |
| PERRITT CAPITAL MANAGEMENT INC | History | Reduced | 166,300 | 2,093 | 3.5% | 0.84% | 10 | -9,000 | -5.13% | Q4 2025 | Feb 17, 2026 |
| DIMENSIONAL FUND ADVISORS LP | History | Added to | 164,787 | 2,075 | 0.0% | 0.0% | 12 | +7,934 | 5.06% | Q4 2025 | Feb 12, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | Added to | 151,969 | 1,913 | 0.0% | 0.0% | 13 | +64,351 | 73.44% | Q4 2025 | Feb 17, 2026 |
| JANE STREET GROUP, LLC | History | Added to | 144,239 | 1,815 | 0.0% | 0.0% | 14 | +86,038 | 147.83% | Q4 2025 | Feb 12, 2026 |
| NORTHERN TRUST CORP | History | Reduced | 123,509 | 1,554 | 0.0% | 0.0% | 15 | -11,953 | -8.82% | Q4 2025 | Feb 17, 2026 |
| MYDA Advisors LLC | History | Added to | 100,000 | 1,259 | 0.24% | 0.11% | 16 | +50,000 | 100.0% | Q4 2025 | Feb 13, 2026 |
| D. E. Shaw & Co., Inc. | History | Added to | 96,009 | 1,208 | 0.0% | 0.0% | 17 | +49,704 | 107.34% | Q4 2025 | Feb 17, 2026 |
| CITADEL ADVISORS LLC | History | Added to | 80,229 | 1,010 | 0.0% | 0.0% | 18 | +5,165 | 6.88% | Q4 2025 | Feb 17, 2026 |
| GOLDMAN SACHS GROUP INC | History | Added to | 71,937 | 905 | 0.0% | 0.0% | 19 | +7,683 | 11.96% | Q4 2025 | Mar 25, 2026 |
| MORGAN STANLEY | History | Reduced | 66,731 | 840 | 0.0% | 0.0% | 20 | -32,916 | -33.03% | Q4 2025 | Feb 13, 2026 |
| Informed Momentum Co LLC | History | New | 64,784 | 815 | 0.09% | — | 21 | +64,784 | New | Q4 2025 | Feb 12, 2026 |
| GatePass Capital, LLC | History | No change | 64,742 | 815 | 0.42% | 0.38% | 22 | 0 | 0.0% | Q4 2025 | Feb 09, 2026 |
| Ancora Advisors LLC | History | Reduced | 57,927 | 729 | 0.02% | 0.03% | 23 | -92,428 | -61.47% | Q4 2025 | Feb 17, 2026 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | History | No change | 48,607 | 611 | 0.0% | 0.0% | 24 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| Bank of New York Mellon Corp | History | Reduced | 44,059 | 554 | 0.0% | 0.0% | 25 | -656 | -1.47% | Q4 2025 | Feb 10, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Reduced | 43,666 | 549 | 0.0% | 0.0% | 26 | -4,073 | -8.53% | Q4 2025 | Feb 17, 2026 |
| Pale Fire Capital SE | History | Reduced | 43,220 | 544 | 0.04% | 0.05% | 27 | -2,050 | -4.53% | Q4 2025 | Feb 13, 2026 |
| SEI INVESTMENTS CO | History | New | 39,442 | 496 | 0.0% | — | 28 | +39,442 | New | Q4 2025 | Feb 13, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | New | 38,617 | 486 | 0.0% | — | 29 | +38,617 | New | Q4 2025 | Feb 17, 2026 |
| Squarepoint Ops LLC | History | New | 36,842 | 463 | 0.0% | — | 30 | +36,842 | New | Q4 2025 | Feb 13, 2026 |
| ARS Investment Partners, LLC | History | Reduced | 36,145 | 455 | 0.03% | 0.03% | 31 | -4,815 | -11.76% | Q4 2025 | Feb 05, 2026 |
| WELLS FARGO & COMPANY/MN | History | Added to | 32,126 | 404 | 0.0% | 0.0% | 32 | +6,465 | 25.19% | Q4 2025 | Feb 13, 2026 |
| UBS Group AG | History | Added to | 28,964 | 364 | 0.0% | 0.0% | 33 | +4,050 | 16.26% | Q4 2025 | Jan 29, 2026 |
| BARCLAYS PLC | History | Added to | 26,981 | 339 | 0.0% | 0.0% | 34 | +2,612 | 10.72% | Q4 2025 | Feb 13, 2026 |
| LOS ANGELES CAPITAL MANAGEMENT LLC | History | New | 22,960 | 321 | 0.0% | — | 35 | +22,960 | New | Q4 2025 | Feb 11, 2026 |
| Nuveen, LLC | History | No change | 22,454 | 282 | 0.0% | 0.0% | 36 | 0 | 0.0% | Q4 2025 | Feb 12, 2026 |
| CORSAIR CAPITAL MANAGEMENT, L.P. | History | Reduced | 21,649 | 272 | 0.04% | 0.05% | 37 | -6,294 | -22.52% | Q4 2025 | Feb 17, 2026 |
| RHUMBLINE ADVISERS | History | Reduced | 21,423 | 269 | 0.0% | 0.0% | 38 | -1,499 | -6.54% | Q4 2025 | Feb 13, 2026 |
| Brookwood Investment Group LLC | History | Added to | 20,873 | 262 | 0.03% | 0.02% | 39 | +5,930 | 39.68% | Q4 2025 | Jan 22, 2026 |
| GUIDANCE CAPITAL, INC | History | Reduced | 17,185 | 254 | 0.06% | 0.06% | 40 | -139 | -0.8% | Q4 2025 | Jan 23, 2026 |
| BAILARD, INC. | History | Reduced | 17,800 | 224 | 0.0% | 0.01% | 41 | -10,800 | -37.76% | Q4 2025 | Feb 04, 2026 |
| Oxler Private Wealth LLC | History | No change | 17,005 | 214 | 0.06% | 0.05% | 42 | 0 | 0.0% | Q4 2025 | Jan 23, 2026 |
| Quent Capital, LLC | History | New | 16,199 | 203 | 0.01% | — | 43 | +16,199 | New | Q4 2025 | Jan 29, 2026 |
| OSAIC HOLDINGS, INC. | History | Reduced | 15,900 | 200 | 0.0% | 0.0% | 44 | -20,000 | -55.71% | Q4 2025 | Feb 17, 2026 |
| HRT FINANCIAL LP | History | New | 14,585 | 183 | 0.0% | — | 45 | +14,585 | New | Q4 2025 | Feb 12, 2026 |
| Fermata Advisors, LLC | History | Reduced | 12,635 | 159 | 0.04% | 0.04% | 46 | -2,688 | -17.54% | Q4 2025 | Jan 08, 2026 |
| DEUTSCHE BANK AG\ | History | Added to | 11,993 | 150 | 0.0% | — | 47 | +11,930 | 18936.51% | Q4 2025 | Feb 11, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | History | New | 11,202 | 142 | 0.0% | — | 48 | +11,202 | New | Q4 2025 | Feb 17, 2026 |
| MetLife Investment Management, LLC | History | Added to | 9,154 | 115 | 0.0% | 0.0% | 49 | +5,784 | 171.63% | Q4 2025 | Feb 12, 2026 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | History | Reduced | 8,019 | 100 | 0.0% | 0.0% | 50 | -286 | -3.44% | Q4 2025 | Feb 17, 2026 |
| JPMORGAN CHASE & CO | History | Added to | 7,140 | 89 | 0.0% | 0.0% | 51 | +109 | 1.55% | Q4 2025 | Feb 11, 2026 |
| FMR LLC | History | Added to | 5,704 | 71 | 0.0% | 0.0% | 52 | +1,303 | 29.61% | Q4 2025 | Feb 17, 2026 |
| Police & Firemen's Retirement System of New Jersey | History | No change | 5,649 | 71 | 0.0% | 0.0% | 53 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| NEW YORK STATE COMMON RETIREMENT FUND | History | No change | 4,400 | 55 | 0.0% | 0.0% | 54 | 0 | 0.0% | Q4 2025 | Feb 12, 2026 |
| North Star Investment Management Corp. | History | No change | 4,400 | 55 | 0.0% | 0.0% | 55 | 0 | 0.0% | Q4 2025 | Jan 30, 2026 |
| GROUP ONE TRADING LLC | History | Reduced | 4,027 | 50 | 0.0% | 0.0% | 56 | -2,099 | -34.26% | Q4 2025 | Feb 12, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | Added to | 3,820 | 48 | 0.0% | 0.0% | 57 | +470 | 14.03% | Q4 2025 | Feb 10, 2026 |
| Tower Research Capital LLC (TRC) | History | Added to | 3,182 | 40 | 0.0% | 0.0% | 58 | +2,182 | 218.2% | Q4 2025 | Feb 17, 2026 |
| Russell Investments Group, Ltd. | History | Added to | 1,612 | 20 | 0.0% | 0.0% | 60 | +28 | 1.77% | Q4 2025 | Feb 17, 2026 |
| Legal & General Group Plc | History | No change | 1,611 | 20 | 0.0% | 0.0% | 59 | 0 | 0.0% | Q4 2025 | Feb 09, 2026 |
| Ameritas Investment Partners, Inc. | History | No change | 1,232 | 15 | 0.0% | 0.0% | 61 | 0 | 0.0% | Q4 2025 | Feb 11, 2026 |
| ROYAL BANK OF CANADA | History | New | 1,027 | 13 | 0.0% | — | 62 | +1,027 | New | Q4 2025 | Feb 17, 2026 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | History | Reduced | 1,065 | 13 | 0.0% | 0.0% | 63 | -10 | -0.93% | Q4 2025 | Feb 17, 2026 |
| FLAGSHIP HARBOR ADVISORS, LLC | History | New | 910 | 11 | 0.0% | — | 64 | +910 | New | Q4 2025 | Jan 21, 2026 |
| Sterling Capital Management LLC | History | Reduced | 860 | 10 | 0.0% | 0.0% | 65 | -156 | -15.35% | Q4 2025 | Feb 13, 2026 |
| AMALGAMATED BANK | History | Reduced | 544 | 7 | 0.0% | 0.0% | 66 | -39 | -6.69% | Q4 2025 | Feb 05, 2026 |
| Global Retirement Partners, LLC | History | New | 500 | 6 | 0.0% | — | 68 | +500 | New | Q4 2025 | Feb 06, 2026 |
| Rockefeller Capital Management L.P. | History | No change | 500 | 6 | 0.0% | 0.0% | 67 | 0 | 0.0% | Q4 2025 | Mar 16, 2026 |
| CITIGROUP INC | History | Added to | 391 | 4 | 0.0% | 0.0% | 69 | +108 | 38.16% | Q4 2025 | Feb 13, 2026 |
| Optiver Holding B.V. | History | No change | 298 | 3 | 0.0% | 0.0% | 70 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| GAMMA Investing LLC | History | Reduced | 214 | 2 | 0.0% | 0.0% | 71 | -33 | -13.36% | Q4 2025 | Jan 05, 2026 |
| CWM, LLC | History | Reduced | 117 | 1 | 0.0% | 0.0% | 72 | -19 | -13.97% | Q4 2025 | Jan 26, 2026 |
| VAN ECK ASSOCIATES CORP | History | Closed out | 0 | 0 | — | 0.0% | — | -220,289 | -100.0% | Q3 2025 | Nov 13, 2025 |
| ESSEX INVESTMENT MANAGEMENT CO LLC | History | Closed out | 0 | 0 | — | 0.3% | — | -196,197 | -100.0% | Q3 2025 | Nov 06, 2025 |
| Legato Capital Management LLC | History | Closed out | 0 | 0 | — | 0.06% | — | -56,459 | -100.0% | Q3 2025 | Nov 12, 2025 |
| Trexquant Investment LP | History | Closed out | 0 | 0 | — | 0.0% | — | -42,156 | -100.0% | Q3 2025 | Nov 14, 2025 |
| BLUE SQUARE ASSET MANAGEMENT, LLC | History | Closed out | 0 | 0 | — | 0.09% | — | -20,100 | -100.0% | Q3 2025 | Oct 28, 2025 |
| Verition Fund Management LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -14,456 | -100.0% | Q3 2025 | Nov 14, 2025 |
| SIMPLEX TRADING, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -11,204 | -100.0% | Q3 2025 | Nov 12, 2025 |
| AlphaQuest LLC | History | Reduced | 1 | 0 | — | 0.0% | — | -718 | -99.86% | Q4 2025 | Feb 09, 2026 |
| Arax Advisory Partners | History | Reduced | 9 | 0 | — | 0.0% | — | -217 | -96.02% | Q4 2025 | Feb 13, 2026 |
| Torren Management, LLC | History | New | 53 | 0 | — | — | — | +53 | New | Q4 2025 | Jan 30, 2026 |
| EverSource Wealth Advisors, LLC | History | Reduced | 3 | 0 | — | — | — | -16 | -84.21% | Q4 2025 | Feb 06, 2026 |
| ROTHSCHILD INVESTMENT LLC | History | No change | 20 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Feb 10, 2026 |
| PNC FINANCIAL SERVICES GROUP, INC. | History | No change | 8 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Feb 06, 2026 |
| NISA INVESTMENT ADVISORS, LLC | History | No change | 71 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Jan 15, 2026 |
| MORGAN DEMPSEY CAPITAL MANAGEMENT LLC | History | No change | 1 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| Sunbelt Securities, Inc. | History | No change | 7 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Feb 20, 2026 |
| SBI Securities Co., Ltd. | History | No change | 1 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Feb 03, 2026 |
| CoreCap Advisors, LLC | History | No change | 5 | 0 | — | — | — | 0 | 0.0% | Q4 2025 | Jan 13, 2026 |