Perma FIX Environmental Services Inc. 13F holders
88 funds reported a position in Perma FIX Environmental Services Inc. in their 13F for the quarter ended 30 June 2026, together 9.5 million shares worth $135.2 million. Against the quarter before, 12 opened a position, 34 added, 17 trimmed and 9 sold out; together they bought a net 1.9 million shares. The largest holders: BlackRock, Inc., Mak Capital One LLC and Vanguard Capital Management LLC.
Funds holding88+3 on Q1 2026
Shares they held9.5Mworth $135.2 million
Net bought on the quarter1.9M sharesabout $27.1 million at the funds' values
Funds buying to selling46 to 26opened or added, to cut or sold
Opened 12Added 34Held 24Trimmed 17Sold out 9
What each fund did in PESI against its 13F for the quarter before; a change under 0.1% of a holding counts as held
Funds reporting a position in PESI in their 13F, each quarter; hover a bar for the shares they held
Filed so far for the quarter to 30 September 2026
3,405 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 17 reported a position in Perma FIX Environmental Services Inc.: 4 opened one, 3 added, 1 trimmed and 1 sold out, a net 532,482 shares sold.
| Fund | Change in shares | Shares now | Status | Filing |
|---|---|---|---|---|
| Prescott Group Capital Management, L.L.C. | -596,650 | 180,492 | trimmed | 13F |
| Exchange Traded Concepts, LLC | +79,006 | 79,006 | new | 13F |
| Strs Ohio | +1,400 | 1,400 | new | 13F |
| Sterling Capital Management LLC | +452 | 553 | added | 13F |
| Gamma Investing LLC | +206 | 420 | added | 13F |
| Caitong International Asset Management Co., Ltd | +51 | 99 | added | 13F |
| Farther Finance Advisors, LLC | +41 | 41 | new | 13F |
| SJS Investment Consulting Inc. | +17 | 17 | new | 13F |
| Oxler Private Wealth LLC | -17,005 | 0 | sold out | 13F |
The largest moves in the name among the funds that have filed, against each fund's previous 13F.
The well-known funds
Of the 44 funds followed here, 3 reported a position in Perma FIX Environmental Services Inc. in a 13F for the quarter ended 30 June 2026. The largest: Geode Capital Management, 455,156 shares worth $6.5 million, 0.0% of its reported book. In the quarter, 2 funds added or opened a position and 1 trimmed or sold out; together they bought a net 105,223 shares, about $1.5 million at the funds' own value per share on 30 June 2026. A change under 0.1% of a holding counts as held.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| Geode Capital Management | 455,156 | $6.5 million | 0.0% | +22,455 | added | 30 June 2026 | 13F |
| Citadel Advisors | 152,626 | $2.2 million | 0.0% | +83,313 | added | 30 June 2026 | 13F |
| FMR LLC | 4,181 | $59,747 | 0.0% | -545 | trimmed | 30 June 2026 | 13F |
Value is what the fund reported.
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Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.The largest holders
| Fund | Shares | Share of all | Value | Of its book | Change in shares | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 1,252,756 | 13.23% | $17.9 million | 0.00% | +82,453 | 13F |
| Mak Capital One LLC | 1,032,958 | 10.91% | $14.8 million | 2.07% | +114,285 | 13F |
| Vanguard Capital Management LLC | 811,743 | 8.57% | $11.6 million | 0.00% | +52,308 | 13F |
| Prescott Group Capital Management, L.L.C. | 777,142 | 8.21% | $11.1 million | 0.96% | no change | 13F |
| Diamond Hill Capital Management, LLC (Investment Advisor) | 642,533 | 6.78% | $9.2 million | 0.07% | +286,555 | 13F |
| Kennedy Capital Management LLC | 610,903 | 6.45% | $8.7 million | 0.15% | new | 13F |
| Potomac Capital Management, Inc. | 477,000 | 5.04% | $6.8 million | 4.99% | +180,300 | 13F |
| Geode Capital Management, LLC | 455,156 | 4.81% | $6.5 million | 0.00% | +22,455 | 13F |
| Heartland Advisors Inc. | 400,000 | 4.22% | $5.7 million | 0.26% | no change | 13F |
| State Street Corp. | 349,744 | 3.69% | $5.0 million | 0.00% | +14,197 | 13F |
| Dimensional Fund Advisors LP | 191,063 | 2.02% | $2.7 million | 0.00% | +27,276 | 13F |
| Goldman Sachs Group Inc. | 162,755 | 1.72% | $2.3 million | 0.00% | +20,068 | 13F |
| Susquehanna International Group, LLP | 156,934 | 1.66% | $2.2 million | 0.00% | +145,836 | 13F |
| Citadel Advisors LLC | 152,626 | 1.61% | $2.2 million | 0.00% | +83,313 | 13F |
| Northern Trust Corp. | 141,639 | 1.50% | $2.0 million | 0.00% | +12,071 | 13F |
| Vanguard Fiduciary Trust Co. | 123,040 | 1.30% | $1.8 million | 0.00% | +3,787 | 13F |
| Group One Trading LLC | 122,611 | 1.29% | $1.8 million | 0.05% | -125,063 | 13F |
| Vanguard Portfolio Management LLC | 121,267 | 1.28% | $1.7 million | 0.00% | +20,949 | 13F |
| North Star Investment Management Corp. | 120,532 | 1.27% | $1.7 million | 0.09% | no change | 13F |
| Diametric Capital, LP | 114,714 | 1.21% | $1.6 million | 0.17% | new | 13F |
| MYDA Advisors LLC | 90,000 | 0.95% | $1.3 million | 0.31% | -30,000 | 13F |
| CM Wealth Advisors LLC | 87,839 | 0.93% | $1.3 million | 0.23% | new | 13F |
| XTX Topco Ltd | 62,888 | 0.66% | $898,670 | 0.01% | +39,661 | 13F |
| Owls Nest Partners IA, LLC | 56,555 | 0.60% | $808,171 | 0.26% | new | 13F |
| Pale Fire Capital SE | 55,627 | 0.59% | $794,910 | 0.06% | +7,001 | 13F |
| Morgan Stanley | 53,084 | 0.56% | $758,571 | 0.00% | +26,366 | 13F |
| Jane Street Group, LLC | 46,651 | 0.49% | $666,643 | 0.00% | +18,126 | 13F |
| Charles Schwab Investment Management Inc. | 45,249 | 0.48% | $646,608 | 0.00% | +1,659 | 13F |
| GatePass Capital, LLC | 44,742 | 0.47% | $639,358 | 0.24% | +15,000 | 13F |
| Corsair Capital Management, L.P. | 42,649 | 0.45% | $609,454 | 0.08% | +5,000 | 13F |
| Bank of America Corp. | 41,371 | 0.44% | $591,192 | 0.00% | -3,819 | 13F |
| Sei Investments Co. | 41,022 | 0.43% | $586,204 | 0.00% | new | 13F |
| Bank of New York Mellon Corp | 38,101 | 0.40% | $544,457 | 0.00% | -2,278 | 13F |
| Simplex Trading, LLC | 31,633 | 0.33% | $452,035 | 0.01% | +315 | 13F |
| UBS Group AG | 31,493 | 0.33% | $450,035 | 0.00% | -30,589 | 13F |
| Squarepoint Ops LLC | 30,976 | 0.33% | $442,647 | 0.00% | -20,964 | 13F |
| Wells Fargo & Company | 29,303 | 0.31% | $418,740 | 0.00% | +8,473 | 13F |
| D. E. Shaw & Co., Inc. | 24,858 | 0.26% | $355,221 | 0.00% | -38,131 | 13F |
| AllianceBernstein L.P. | 32,850 | 0.35% | $351,167 | 0.00% | new | 13F |
| Brown Advisory Inc. | 23,333 | 0.25% | $333,429 | 0.00% | +3,333 | 13F |
| Nuveen, LLC | 22,454 | 0.24% | $320,868 | 0.00% | no change | 13F |
| Trexquant Investment LP | 21,948 | 0.23% | $313,637 | 0.00% | new | 13F |
| Rhumbline Advisers | 20,879 | 0.22% | $298,353 | 0.00% | -531 | 13F |
| Rothschild Wealth LLC | 20,600 | 0.22% | $294,374 | 0.02% | no change | 13F |
| Quadrature Capital Ltd | 18,967 | 0.20% | $271,038 | 0.00% | new | 13F |
| Fifth Lane Capital, LP | 18,000 | 0.19% | $257,220 | 15.77% | new | 13F |
| Guidance Capital, Inc. | 16,683 | 0.18% | $256,418 | 0.06% | +381 | 13F |
| Bailard, Inc. | 17,800 | 0.19% | $254,362 | 0.01% | no change | 13F |
| Oxler Private Wealth LLC | 17,005 | 0.18% | $243,002 | 0.07% | no change | 13F |
| IMC-Chicago, LLC | 16,465 | 0.17% | $235,285 | 0.00% | -468 | 13F |
The 50 largest of the 88 funds that reported a position in PESI in their 13F for the quarter ended 30 June 2026, by the value each reported.
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Share of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?Options the funds reported on PESI
| Fund | Option | Shares under the options | Value of those shares | Quarter ended | Filing |
|---|---|---|---|---|---|
| Citadel Advisors | Puts | 13,800 | $197,202 | 30 June 2026 | 13F |
A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost.
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They are not counted in the holdings above. A put gains when the stock falls, a call when it rises, and a fund may hold either to hedge.Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 28 October 2026 | 13G/A | HOLD Alapkezelo Zrt. and 1 other | 3.2 million | 15.2% | 27 October 2026 | passive, under 20% (13d-1(c)) | EDGAR |
| 28 August 2026 | 13G/A | Mak Capital One LLC and 5 others | 1.0 million | 4.8% | 24 August 2026 | passive, under 20% (13d-1(c)) | EDGAR |
| 27 August 2026 | 13G/A | HOLD Alapkezelo Zrt. and 1 other | 2.2 million | 10.6% | 25 August 2026 | passive, under 20% (13d-1(c)) | EDGAR |
| 7 August 2026 | 13G/A | MAK Capital Fund LP and 5 others | 1.2 million | 5.5% | 31 July 2026 | passive, under 20% (13d-1(c)) | EDGAR |
| 6 August 2026 | 13G | MAK Capital Fund LP and 5 others | 1.2 million | 5.5% | 31 July 2026 | passive, other (13d-1(d)) | EDGAR |
| 30 March 2026 | 13G | HOLD Alapkezelo Zrt. and 1 other | 944,312 | 5.1% | 31 March 2026 | passive, under 20% (13d-1(c)) | EDGAR |
| 27 March 2026 | 13G/A | The Vanguard Group and 1 other | 0 | 0.0% | 13 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
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Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13GFails to deliver
| Settlement date | Shares failed | Price | File |
|---|---|---|---|
| 28 August 2026 | 2,774 | $19.30 | SEC |
| 18 August 2026 | 4,316 | $17.63 | SEC |
| 14 August 2026 | 9,949 | $17.96 | SEC |
| 13 August 2026 | 1,200 | $19.43 | SEC |
| 3 August 2026 | 1,024 | $16.60 | SEC |
| 31 July 2026 | 7,438 | $16.83 | SEC |
| 30 July 2026 | 7,022 | $15.87 | SEC |
| 28 July 2026 | 174 | $15.68 | SEC |
| 27 July 2026 | 2,859 | $15.98 | SEC |
| 24 July 2026 | 663 | $16.16 | SEC |
| 23 July 2026 | 618 | $16.70 | SEC |
| 16 July 2026 | 2,901 | $14.83 | SEC |
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.