PERMA-FIX ENVIRONMENTAL SVCS PESI
COM NEW · Common Stock · CUSIP 714157203
Hazardous waste treatment and disposal company
- SectorUtilities
- IndustryHazardous Waste Management
- HeadquartersAtlanta, GA
- Founded1990
- Websiteperma-fix.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 18.5m as of 2025-11-03, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $12.60. Options: 3 managers hold calls ($790.7k notional), 2 hold puts ($530.0k).
Trends to Q4 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 29 |
| Q4 2022 | 31 |
| Q1 2023 | 33 |
| Q2 2023 | 38 |
| Q3 2023 | 44 |
| Q4 2023 | 44 |
| Q1 2024 | 42 |
| Q2 2024 | 59 |
| Q3 2024 | 69 |
| Q4 2024 | 75 |
| Q1 2025 | 77 |
| Q2 2025 | 71 |
| Q3 2025 | 77 |
| Q4 2025 | 84 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q1 2024 | 15 | 19 |
| Q2 2024 | 41 | 14 |
| Q3 2024 | 38 | 21 |
| Q4 2024 | 35 | 34 |
| Q1 2025 | 40 | 25 |
| Q2 2025 | 35 | 33 |
| Q3 2025 | 43 | 28 |
| Q4 2025 | 34 | 35 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q1 2025 | $108.8k | $441.2k | 4.06 |
| Q2 2025 | $685.1k | $429.0k | 0.63 |
| Q3 2025 | $1.1m | $404.2k | 0.35 |
| Q4 2025 | $790.7k | $530.0k | 0.67 |
Biggest buyers
| Rothschild Wealth LLC | New | +166.3k |
| MAK CAPITAL ONE LLC | Added | +103.1k |
| MYDA Advisors LLC | New | +100.0k |
| JANE STREET GROUP, LLC | Added | +86.0k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | +81.2k |
| Informed Momentum Co LLC | New | +64.8k |
| D. E. Shaw & Co., Inc. | Added | +49.7k |
| SEI INVESTMENTS CO | New | +39.4k |
| MILLENNIUM MANAGEMENT LLC | New | +38.6k |
| Squarepoint Ops LLC | New | +36.8k |
Biggest sellers
| VAN ECK ASSOCIATES CORP | Sold out | -220.3k |
| ESSEX INVESTMENT MANAGEMENT CO LLC | Sold out | -196.2k |
| Ancora Advisors LLC | Reduced | -92.4k |
| HEARTLAND ADVISORS INC | Reduced | -58.2k |
| Legato Capital Management LLC | Sold out | -56.5k |
| Trexquant Investment LP | Sold out | -42.2k |
| MORGAN STANLEY | Reduced | -32.9k |
| CITADEL ADVISORS LLC | Reduced | -24.0k |
| BLUE SQUARE ASSET MANAGEMENT, LLC | Sold out | -20.1k |
| OSAIC HOLDINGS, INC. | Reduced | -20.0k |
Biggest calls
| CITADEL ADVISORS LLC | Added | $368.9k29.3k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $332.4k26.4k shares |
| GROUP ONE TRADING LLC | Added | $89.4k7.1k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $343.7k27.3k shares |
| CITADEL ADVISORS LLC | New | $186.3k14.8k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| HOLD Alapkezelo Zrt. 13G · passive investor +4.6 pts · filed 2026-10-28 | 15.2% |
Fell to 5% or below in the last year: MAK CAPITAL ONE LLC (4.8%, 2026-08-28), VANGUARD GROUP INC (0.0%, 2026-03-27)
Insider purchases and sales in Q4 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q1 2024 | 0 | — | 0 | — | — |
| Q2 2024 | 0 | — | 0 | — | — |
| Q3 2024 | 1 | $21.2k | 0 | — | — |
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 4 | $41.6k | 0 | — | — |
| Q2 2025 | 0 | — | 1 | — | — |
| Q3 2025 | 2 | $25.4k | 1 | $48.6k | — |
| Q4 2025 | 0 | — | 0 | — | — |
None reported in Q4 2025.
Holders, Q4 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 1.2m $15.1m | Added +30.3k |
| VANGUARD GROUP INC 0.00% of their portfolio | 968.1k $12.2m | Added +32.2k |
| MAK CAPITAL ONE LLC 1.56% of their portfolio | 918.7k $11.6m | Added +103.1k |
| Prescott Group Capital Management, L.L.C. 0.91% of their portfolio | 777.1k $9.8m | Unchanged |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 422.9k $5.3m | Added +1.7k |
| HEARTLAND ADVISORS INC 0.27% of their portfolio | 400.0k $5.0m | Reduced -58.2k |
| Diamond Hill Capital Management, LLC (Investment Advisor) 0.02% of their portfolio | 386.8k $4.9m | Reduced -14.7k |
| Potomac Capital Management, Inc. 3.60% of their portfolio | 341.8k $4.3m | First filing |
| STATE STREET CORP 0.00% of their portfolio | 312.3k $3.9m | Added +13.9k |
| Perritt Capital Management Inc 3.50% of their portfolio | 166.3k $2.1m | Reduced -9.0k |
| Rothschild Wealth LLC 0.20% of their portfolio | 166.3k $2.1m | New |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 164.8k $2.1m | Added +7.9k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 144.2k $1.8m | Added +86.0k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 123.5k $1.6m | Reduced -12.0k |
| MYDA Advisors LLC 0.35% of their portfolio | 100.0k $1.3m | New |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 98.3k $1.2m | Added +81.2k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 96.0k $1.2m | Added +49.7k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 71.9k $905.7k | Added +7.7k |
| MORGAN STANLEY 0.00% of their portfolio | 66.7k $840.1k | Reduced -32.9k |
| Informed Momentum Co LLC 0.09% of their portfolio | 64.8k $815.6k | New |
| GatePass Capital, LLC 0.42% of their portfolio | 64.7k $815.1k | Unchanged |
| Ancora Advisors LLC 0.02% of their portfolio | 57.9k $729.3k | Reduced -92.4k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 48.6k $612.0k | Unchanged |
| Bank of New York Mellon Corp 0.00% of their portfolio | 44.1k $554.7k | Reduced -656 |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 43.7k $549.8k | Reduced -4.1k |
| Pale Fire Capital SE 0.07% of their portfolio | 43.2k $544.1k | Reduced -2.0k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 39.4k $496.6k | New |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 38.6k $486.2k | New |
| Squarepoint Ops LLC 0.00% of their portfolio | 36.8k $463.8k | New |
| ARS Investment Partners, LLC 0.03% of their portfolio | 36.1k $455.1k | Reduced -4.8k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 36.1k $454.9k | Reduced -24.0k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 32.1k $404.5k | Added +6.5k |
| UBS Group AG 0.00% of their portfolio | 29.0k $364.7k | Added +4.0k |
| BARCLAYS PLC 0.00% of their portfolio | 27.0k $339.7k | Added +2.6k |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 23.0k $321.6k | New |
| Nuveen, LLC 0.00% of their portfolio | 22.5k $282.7k | Unchanged |
| CORSAIR CAPITAL MANAGEMENT, L.P. 0.05% of their portfolio | 21.6k $272.6k | Reduced -6.3k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 21.4k $269.7k | Reduced -1.5k |
| Brookwood Investment Group LLC 0.03% of their portfolio | 20.9k $262.8k | Added +5.9k |
| BAILARD, INC. 0.00% of their portfolio | 17.8k $224.1k | Reduced -10.8k |
| GUIDANCE CAPITAL, INC 0.06% of their portfolio | 17.2k $254.7k | Reduced -139 |
| Oxler Private Wealth LLC 0.06% of their portfolio | 17.0k $214.1k | Unchanged |
| Quent Capital, LLC 0.01% of their portfolio | 16.2k $203.9k | New |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 15.9k $200.2k | Reduced -20.0k |
| HRT FINANCIAL LP 0.00% of their portfolio | 14.6k $183.0k | New |
| Fermata Advisors, LLC 0.04% of their portfolio | 12.6k $159.1k | Reduced -2.7k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 12.0k $151.0k | Added +11.9k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 11.2k $142.0k | New |
| MetLife Investment Management, LLC 0.00% of their portfolio | 9.2k $115.2k | Added +5.8k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 8.0k $101.0k | Reduced -286 |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 7.1k $89.9k | Reduced -6.9k |
| FMR LLC 0.00% of their portfolio | 5.7k $71.8k | Added +1.3k |
| Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio | 5.6k $71.1k | Unchanged |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 4.4k $55.4k | Unchanged |
| North Star Investment Management Corp. 0.00% of their portfolio | 4.4k $55.4k | Unchanged |
| GROUP ONE TRADING LLC 0.00% of their portfolio | 4.0k $50.7k | Added +501 |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 3.8k $48.1k | Added +470 |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 3.2k $40.1k | Added +2.2k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 1.6k $20.3k | Added +28 |
| Legal & General Group Plc 0.00% of their portfolio | 1.6k $20.3k | Unchanged |
| Ameritas Investment Partners, Inc. 0.00% of their portfolio | 1.2k $15.5k | Unchanged |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 1.1k $13.4k | Reduced -10 |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 1.0k $13.0k | Reduced -3.1k |
| FLAGSHIP HARBOR ADVISORS, LLC 0.00% of their portfolio | 910 $11.5k | New |
| Sterling Capital Management LLC 0.00% of their portfolio | 860 $10.8k | Reduced -156 |
| AMALGAMATED BANK 0.00% of their portfolio | 544 $7.0k | Reduced -39 |
| Rockefeller Capital Management L.P. 0.00% of their portfolio | 500 $6.3k | Unchanged |
| Global Retirement Partners, LLC 0.00% of their portfolio | 500 $6.3k | New |
| CITIGROUP INC 0.00% of their portfolio | 391 $4.9k | Added +108 |
| Optiver Holding B.V. 0.00% of their portfolio | 298 $3.8k | Unchanged |
| GAMMA Investing LLC 0.00% of their portfolio | 214 $2.7k | Reduced -33 |
| CWM, LLC 0.00% of their portfolio | 117 $1.0k | Reduced -19 |
| NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio | 71 $894 | Unchanged |
| Torren Management, LLC 0.00% of their portfolio | 53 $667 | First filing |
| ROTHSCHILD INVESTMENT LLC 0.00% of their portfolio | 20 $252 | Unchanged |
| Arax Advisory Partners 0.00% of their portfolio | 9 $113 | Reduced -217 |
| Essential Partners LLC 0.00% of their portfolio | 9 $113 | Unchanged |
| PNC Financial Services Group, Inc. 0.00% of their portfolio | 8 $101 | Unchanged |
| Sunbelt Securities, Inc. 0.00% of their portfolio | 7 $88 | Unchanged |
| CoreCap Advisors, LLC 0.00% of their portfolio | 5 $63 | Unchanged |
| EverSource Wealth Advisors, LLC 0.00% of their portfolio | 3 $38 | Reduced -16 |
| MORGAN DEMPSEY CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 1 $13 | Unchanged |
| SBI Securities Co., Ltd. 0.00% of their portfolio | 1 $13 | Unchanged |
| AlphaQuest LLC 0.00% of their portfolio | 1 $13 | Reduced -718 |