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Disclosery

PESI PERMA-FIX ENVIRONMENTAL SVCS

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COMMON STOCK (common), issuer CIK 891532

84 managers (84 13F filers) reported a position in PESI shares at 2025-12-31, 7,876,466 shares in all. 12 filers opened a position and 7 filers sold out during the quarter.

Managers
84
13F filers
84
New
12
Added
23
Reduced
27
Sold out
7
Shares held by filers
7,876,466

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
BlackRock, Inc.in group BlackRock, Inc.1,197,985$15.1M<0.01%+30,25313F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC968,107$12.2M<0.01%+32,16513F-HRTimelineGroup
MAK CAPITAL ONE LLC918,673$11.6M1.56%+103,09713F-HRTimeline
Prescott Group Capital Management, L.L.…777,142$9.78M0.91%013F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC422,890$5.33M<0.01%+1,65513F-HRTimelineGroup
HEARTLAND ADVISORS INC400,000$5.04M0.27%-58,25013F-HRTimeline
Diamond Hill Capital Management, LLC (I…386,843$4.87M0.02%-14,71613F-HRTimeline
Potomac Capital Management, Inc.341,800$4.3M3.6%13F-HRTimeline
STATE STREET CORPin group STATE STREET CORP312,267$3.93M<0.01%+13,87913F-HRTimelineGroup
Perritt Capital Management Inc166,300$2.09M3.5%-9,00013F-HRTimeline
Rothschild Wealth LLC166,300$2.09M0.2%new13F-HR/ATimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP164,787$2.08M<0.01%+7,93413F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC144,239$1.82M<0.01%+86,03813F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP123,509$1.55M<0.01%-11,95313F-HRTimelineGroup
MYDA Advisors LLC100,000$1.26M0.35%new13F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…98,269$1.24M<0.01%+81,15113F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.96,009$1.21M<0.01%+49,70413F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC71,937$906K<0.01%+7,68313F-HR/ATimelineGroup
MORGAN STANLEYin group MORGAN STANLEY66,731$840K<0.01%-32,91613F-HR/ATimelineGroup
Informed Momentum Co LLC64,784$816K0.09%new13F-HRTimeline
GatePass Capital, LLC64,742$815K0.42%013F-HRTimeline
Ancora Advisors LLCin group Ancora Advisors LLC57,927$729K0.02%-92,42813F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co48,607$612K<0.01%013F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp44,059$555K<0.01%-65613F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/43,666$550K<0.01%-4,07313F-HRTimelineGroup
Pale Fire Capital SEin group Pale Fire Capital43,220$544K0.07%-2,05013F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO39,442$497K<0.01%new13F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC38,617$486K<0.01%new13F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC36,842$464K<0.01%new13F-HRTimelineGroup
ARS Investment Partners, LLC36,145$455K0.03%-4,81513F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC36,129$455K<0.01%-24,03513F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN32,126$404K<0.01%+6,46513F-HRTimelineGroup
UBS Group AGin group UBS Group AG28,964$365K<0.01%+4,05013F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC26,981$340K<0.01%+2,61213F-HRTimelineGroup
LOS ANGELES CAPITAL MANAGEMENT LLC22,960$322K<0.01%new13F-HRTimeline
Nuveen, LLCin group TIAA22,454$283K<0.01%013F-HRTimelineGroup
CORSAIR CAPITAL MANAGEMENT, L.P.21,649$273K0.05%-6,29413F-HRTimeline
RHUMBLINE ADVISERS21,423$270K<0.01%-1,49913F-HRTimeline
Brookwood Investment Group LLC20,873$263K0.03%+5,93013F-HRTimeline
GUIDANCE CAPITAL, INC17,185$255K0.06%-13913F-HRTimeline
BAILARD, INC.17,800$224K<0.01%-10,80013F-HRTimeline
Oxler Private Wealth LLC17,005$214K0.06%013F-HRTimeline
Quent Capital, LLC16,199$204K0.01%new13F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.15,900$200K<0.01%-20,00013F-HRTimelineGroup
HRT FINANCIAL LP14,585$183K<0.01%new13F-HRTimeline
Fermata Advisors, LLC12,635$159K0.04%-2,68813F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\11,993$151K<0.01%+11,93013F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/11,202$142K<0.01%new13F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…9,154$115K<0.01%+5,78413F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…8,019$101K<0.01%-28613F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO7,140$89.9K<0.01%+10913F-HRTimelineGroup
FMR LLCin group FMR LLC5,704$71.8K<0.01%+1,30313F-HRTimelineGroup
Police & Firemen's Retirement System of…5,649$71.1K<0.01%013F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND4,400$55.4K<0.01%013F-HRTimeline
North Star Investment Management Corp.4,400$55.4K<0.01%013F-HRTimeline
GROUP ONE TRADING LLC4,027$50.7K<0.01%+50113F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS3,820$48.1K<0.01%+47013F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…3,182$40.1K<0.01%+2,18213F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…1,612$20.3K<0.01%+2813F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc1,611$20.3K<0.01%013F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…1,232$15.5K<0.01%013F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…1,065$13.4K<0.01%-1013F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA1,027$13K<0.01%-3,08413F-HRTimelineGroup
FLAGSHIP HARBOR ADVISORS, LLC910$11.5K<0.01%new13F-HRTimeline
Sterling Capital Management LLC860$10.8K<0.01%-15613F-HRTimeline
AMALGAMATED BANK544$7K<0.01%-3913F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…500$6.29K<0.01%013F-HR/ATimelineGroup
Global Retirement Partners, LLC500$6.29K<0.01%new13F-HRTimeline
CITIGROUP INCin group CITIGROUP INC391$4.92K<0.01%+10813F-HRTimelineGroup
Optiver Holding B.V.in group Optiver Holding B.V.298$3.75K<0.01%013F-HRTimelineGroup
GAMMA Investing LLC214$2.69K<0.01%-3313F-HRTimeline
CWM, LLCin group CWM, LLC117$1K<0.01%-1913F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC71$894<0.01%013F-HRTimeline
Torren Management, LLC53$667<0.01%13F-HRTimeline
ROTHSCHILD INVESTMENT LLC20$252<0.01%013F-HRTimeline
Arax Advisory Partners9$113<0.01%-21713F-HRTimeline
Essential Partners LLC9$113<0.01%013F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…8$101<0.01%013F-HRTimelineGroup
Sunbelt Securities, Inc.7$88<0.01%013F-HRTimeline
CoreCap Advisors, LLC5$63<0.01%013F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…3$38<0.01%-1613F-HRTimelineGroup
MORGAN DEMPSEY CAPITAL MANAGEMENT LLC1$13<0.01%013F-HRTimeline
SBI Securities Co., Ltd.1$13<0.01%013F-HRTimeline
AlphaQuest LLC1$13<0.01%-71813F-HRTimeline