PERMA FIX ENVIRONMENTAL SERVICES INC - PESI

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q1 2026 · Compare: Q4 2025
13D/13G major owners: Ownership tab.
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 Reduced 1,170,303 12,510 0.0% 0.0% 1 -27,682 -2.31% Q1 2026 May 13, 2026
VANGUARD GROUP INC History No change 968,107 12,188 0.0% 0.0% 2 0 0.0% Q4 2025 Jan 29, 2026
MAK CAPITAL ONE LLC History No change 918,673 9,820 1.45% 1.27% 3 0 0.0% Q1 2026 May 15, 2026
PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C. History No change 777,142 8,307 0.83% 0.91% 4 0 0.0% Q1 2026 May 07, 2026
VANGUARD CAPITAL MANAGEMENT LLC History New 759,435 8,118 0.0% 5 +759,435 New Q1 2026 May 15, 2026
GROUP ONE TRADING LLC History Added to 501,974 5,366 0.01% 0.0% 6 +497,947 12365.21% Q1 2026 May 13, 2026
GEODE CAPITAL MANAGEMENT, LLC History Added to 432,701 4,626 0.0% 0.0% 7 +9,811 2.32% Q1 2026 May 15, 2026
HEARTLAND ADVISORS INC History No change 400,000 4,276 0.22% 0.27% 8 0 0.0% Q1 2026 May 06, 2026
DIAMOND HILL CAPITAL MANAGEMENT INC History Reduced 355,978 3,805 0.02% 0.02% 9 -30,865 -7.98% Q1 2026 May 07, 2026
STATE STREET CORP History Added to 335,547 3,586 0.0% 0.0% 10 +23,280 7.46% Q1 2026 May 15, 2026
Potomac Capital Management, Inc. History Reduced 296,700 3,171 2.76% 3.46% 11 -45,100 -13.19% Q1 2026 May 14, 2026
PERRITT CAPITAL MANAGEMENT INC History No change 166,300 2,093 3.5% 3.5% 12 0 0.0% Q4 2025 Feb 17, 2026
DIMENSIONAL FUND ADVISORS LP History Reduced 163,787 1,750 0.0% 0.0% 13 -1,000 -0.61% Q1 2026 May 07, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP History Added to 161,598 1,727 0.0% 0.0% 14 +9,629 6.34% Q1 2026 May 15, 2026
GOLDMAN SACHS GROUP INC History Added to 142,687 1,525 0.0% 0.0% 15 +70,750 98.35% Q1 2026 May 15, 2026
NORTHERN TRUST CORP History Added to 129,568 1,385 0.0% 0.0% 16 +6,059 4.91% Q1 2026 May 14, 2026
North Star Investment Management Corp. History Added to 120,532 1,288 0.08% 0.0% 17 +116,132 2639.36% Q1 2026 Apr 23, 2026
MYDA Advisors LLC History Added to 120,000 1,282 0.21% 0.24% 18 +20,000 20.0% Q1 2026 May 14, 2026
VANGUARD FIDUCIARY TRUST CO History New 119,253 1,274 0.0% 19 +119,253 New Q1 2026 May 08, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC History New 100,318 1,072 0.0% 20 +100,318 New Q1 2026 May 08, 2026
CITADEL ADVISORS LLC History Added to 84,813 906 0.0% 0.0% 21 +4,584 5.71% Q1 2026 May 15, 2026
JANE STREET GROUP, LLC History Reduced 79,525 850 0.0% 0.0% 22 -64,714 -44.87% Q1 2026 May 12, 2026
D. E. Shaw & Co., Inc. History Reduced 62,989 673 0.0% 0.0% 23 -33,020 -34.39% Q1 2026 May 15, 2026
UBS Group AG History Added to 62,082 663 0.0% 0.0% 24 +33,118 114.34% Q1 2026 May 05, 2026
Squarepoint Ops LLC History Added to 51,940 555 0.0% 0.0% 25 +15,098 40.98% Q1 2026 May 15, 2026
Pale Fire Capital SE History Added to 48,626 519 0.05% 0.04% 26 +5,406 12.51% Q1 2026 May 14, 2026
BANK OF AMERICA CORP /DE/ History Added to 45,190 483 0.0% 0.0% 27 +1,524 3.49% Q1 2026 May 15, 2026
SIMPLEX TRADING, LLC History New 44,418 474 0.0% 28 +44,418 New Q1 2026 May 14, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC History Reduced 43,590 465 0.0% 0.0% 29 -5,017 -10.32% Q1 2026 May 15, 2026
Bank of New York Mellon Corp History Reduced 40,379 431 0.0% 0.0% 30 -3,680 -8.35% Q1 2026 May 05, 2026
CORSAIR CAPITAL MANAGEMENT, L.P. History Added to 37,649 402 0.06% 0.04% 31 +16,000 73.91% Q1 2026 May 15, 2026
IMC-Chicago, LLC History New 37,133 396 0.0% 32 +37,133 New Q1 2026 May 05, 2026
GatePass Capital, LLC History Reduced 29,742 317 0.15% 0.42% 33 -35,000 -54.06% Q1 2026 May 06, 2026
MORGAN STANLEY History Reduced 26,718 285 0.0% 0.0% 34 -40,013 -59.96% Q1 2026 May 15, 2026
XTX Topco Ltd History New 23,227 248 0.0% 35 +23,227 New Q1 2026 May 15, 2026
Nuveen, LLC History No change 22,454 240 0.0% 0.0% 36 0 0.0% Q1 2026 Apr 30, 2026
RHUMBLINE ADVISERS History Reduced 21,410 228 0.0% 0.0% 37 -13 -0.06% Q1 2026 May 12, 2026
WELLS FARGO & COMPANY/MN History Reduced 20,830 222 0.0% 0.0% 38 -11,296 -35.16% Q1 2026 May 11, 2026
Rothschild Wealth LLC History Reduced 20,600 220 0.02% 0.2% 39 -145,700 -87.61% Q1 2026 May 06, 2026
BROWN ADVISORY INC History New 20,000 213 0.0% 40 +20,000 New Q1 2026 May 15, 2026
GUIDANCE CAPITAL, INC History Reduced 16,302 210 0.05% 0.06% 41 -883 -5.14% Q1 2026 May 08, 2026
BAILARD, INC. History No change 17,800 190 0.0% 0.0% 42 0 0.0% Q1 2026 May 11, 2026
Oxler Private Wealth LLC History No change 17,005 181 0.06% 0.06% 43 0 0.0% Q1 2026 Apr 28, 2026
Quent Capital, LLC History No change 16,199 173 0.01% 0.01% 44 0 0.0% Q1 2026 Apr 28, 2026
GSA CAPITAL PARTNERS LLP History New 16,097 172 0.01% 45 +16,097 New Q1 2026 May 08, 2026
OSAIC HOLDINGS, INC. History Added to 16,000 171 0.0% 0.0% 46 +100 0.63% Q1 2026 May 15, 2026
DEUTSCHE BANK AG\ History Added to 14,621 156 0.0% 0.0% 47 +2,628 21.91% Q1 2026 May 06, 2026
Fermata Advisors, LLC History Added to 12,936 138 0.03% 0.04% 48 +301 2.38% Q1 2026 Apr 08, 2026
Greenhaven Road Investment Management, L.P. History New 11,303 120 0.08% 50 +11,303 New Q1 2026 May 15, 2026
PRICE T ROWE ASSOCIATES INC /MD/ History No change 11,202 120 0.0% 0.0% 49 0 0.0% Q1 2026 May 15, 2026
Invesco Ltd. History New 11,135 119 0.0% 51 +11,135 New Q1 2026 May 12, 2026
AMERICAN CENTURY COMPANIES INC History New 10,692 114 0.0% 52 +10,692 New Q1 2026 May 15, 2026
Vident Advisory, LLC History New 10,390 111 0.0% 53 +10,390 New Q1 2026 May 14, 2026
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. History Added to 8,223 87 0.0% 0.0% 54 +204 2.54% Q1 2026 May 15, 2026
JPMORGAN CHASE & CO History Reduced 7,082 73 0.0% 0.0% 55 -58 -0.81% Q1 2026 May 13, 2026
Vanguard Global Advisers, LLC History New 5,742 61 0.0% 56 +5,742 New Q1 2026 May 08, 2026
Police & Firemen's Retirement System of New Jersey History No change 5,649 60 0.0% 0.0% 57 0 0.0% Q1 2026 Apr 29, 2026
Capital Advisors, Ltd. LLC History New 5,000 53 0.01% 58 +5,000 New Q1 2026 Apr 16, 2026
MetLife Investment Management, LLC History Reduced 4,922 52 0.0% 0.0% 59 -4,232 -46.23% Q1 2026 May 14, 2026
FMR LLC History Reduced 4,726 50 0.0% 0.0% 60 -978 -17.15% Q1 2026 May 15, 2026
NEW YORK STATE COMMON RETIREMENT FUND History No change 4,400 47 0.0% 0.0% 61 0 0.0% Q1 2026 May 06, 2026
BNP PARIBAS FINANCIAL MARKETS History Reduced 3,669 39 0.0% 0.0% 62 -151 -3.95% Q1 2026 May 12, 2026
BARCLAYS PLC History Reduced 3,273 34 0.0% 0.0% 63 -23,708 -87.87% Q1 2026 May 14, 2026
Russell Investments Group, Ltd. History Added to 1,732 18 0.0% 0.0% 64 +120 7.44% Q1 2026 May 08, 2026
Tower Research Capital LLC (TRC) History Reduced 1,528 16 0.0% 0.0% 66 -1,654 -51.98% Q1 2026 May 15, 2026
Legal & General Group Plc History Reduced 1,558 16 0.0% 0.0% 65 -53 -3.29% Q1 2026 May 08, 2026
Ameritas Investment Partners, Inc. History No change 1,232 13 0.0% 0.0% 67 0 0.0% Q1 2026 May 13, 2026
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM History Reduced 936 10 0.0% 0.0% 68 -129 -12.11% Q1 2026 May 15, 2026
CITIGROUP INC History Added to 819 8 0.0% 0.0% 69 +428 109.46% Q1 2026 May 11, 2026
Global Retirement Partners, LLC History No change 500 6 0.0% 0.0% 70 0 0.0% Q4 2025 Feb 06, 2026
Sterling Capital Management LLC History Reduced 501 5 0.0% 0.0% 71 -359 -41.74% Q1 2026 Apr 22, 2026
Rockefeller Capital Management L.P. History No change 500 5 0.0% 0.0% 72 0 0.0% Q1 2026 May 14, 2026
CWM, LLC History Added to 195 2 0.0% 0.0% 73 +78 66.67% Q1 2026 May 14, 2026
GAMMA Investing LLC History No change 214 2 0.0% 0.0% 74 0 0.0% Q1 2026 Apr 06, 2026
ROYAL BANK OF CANADA History Reduced 50 1 0.0% 0.0% 75 -977 -95.13% Q1 2026 May 15, 2026
JONES FINANCIAL COMPANIES LLLP History New 140 1 0.0% 77 +140 New Q1 2026 May 15, 2026
Optiver Holding B.V. History Reduced 170 1 0.0% 0.0% 76 -128 -42.95% Q1 2026 May 15, 2026
Informed Momentum Co LLC History Closed out 0 0 0.09% -64,784 -100.0% Q1 2026 May 13, 2026
Ancora Advisors LLC History Closed out 0 0 0.02% -57,927 -100.0% Q1 2026 May 15, 2026
SEI INVESTMENTS CO History Closed out 0 0 0.0% -39,442 -100.0% Q1 2026 May 13, 2026
MILLENNIUM MANAGEMENT LLC History Closed out 0 0 0.0% -38,617 -100.0% Q1 2026 May 15, 2026
ARS Investment Partners, LLC History Closed out 0 0 0.03% -36,145 -100.0% Q1 2026 Apr 16, 2026
LOS ANGELES CAPITAL MANAGEMENT LLC History Closed out 0 0 0.0% -22,960 -100.0% Q1 2026 May 08, 2026
Brookwood Investment Group LLC History Closed out 0 0 0.03% -20,873 -100.0% Q1 2026 May 04, 2026
HRT FINANCIAL LP History Closed out 0 0 0.0% -14,585 -100.0% Q1 2026 May 14, 2026
FLAGSHIP HARBOR ADVISORS, LLC History Closed out 0 0 0.0% -910 -100.0% Q1 2026 Apr 28, 2026
AMALGAMATED BANK History Closed out 0 0 0.0% -544 -100.0% Q1 2026 May 08, 2026
Caitong International Asset Management Co., Ltd History New 14 0 +14 New Q1 2026 May 11, 2026
Arax Advisory Partners History Closed out 0 0 -9 -100.0% Q1 2026 May 13, 2026
EverSource Wealth Advisors, LLC History Closed out 0 0 -3 -100.0% Q1 2026 May 15, 2026
Farther Finance Advisors, LLC History New 2 0 +2 New Q1 2026 Apr 07, 2026
ROTHSCHILD INVESTMENT LLC History No change 20 0 0 0.0% Q1 2026 May 07, 2026
PNC FINANCIAL SERVICES GROUP, INC. History No change 8 0 0 0.0% Q1 2026 May 08, 2026
NISA INVESTMENT ADVISORS, LLC History No change 71 0 0 0.0% Q1 2026 Apr 30, 2026
MORGAN DEMPSEY CAPITAL MANAGEMENT LLC History No change 1 0 0 0.0% Q1 2026 May 06, 2026
Sunbelt Securities, Inc. History No change 7 0 0 0.0% Q1 2026 May 15, 2026
SBI Securities Co., Ltd. History No change 1 0 0 0.0% Q1 2026 Apr 27, 2026
AlphaQuest LLC History No change 1 0 0 0.0% Q4 2025 Feb 09, 2026
CoreCap Advisors, LLC History No change 5 0 0 0.0% Q1 2026 Apr 07, 2026
Torren Management, LLC History No change 53 0 0 0.0% Q1 2026 Apr 30, 2026
Essential Partners LLC History No change 9 0 0 0.0% Q1 2026 May 21, 2026