PERMA FIX ENVIRONMENTAL SERVICES INC - Common Stock (PESI) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2014 to Q4 2025

Type / Class
Equity / Common Stock
Symbol
PESI on Nasdaq
Shares outstanding
18,496,877
Price per share
$13.93
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
6,060,893
Total reported value
$76,378,067
% of total 13F portfolios
0%
Share change
-126,714
Value change
-$293,070
Number of holders
61
Price from insider filings
$13.93
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of PERMA FIX ENVIRONMENTAL SERVICES INC - Common Stock (PESI) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
VANGUARD GROUP INC 5.1% $9,453,014 935,942 The Vanguard Group 30 Sep 2025

As of 31 Dec 2025, 61 institutional investors reported holding 6,060,893 shares of PERMA FIX ENVIRONMENTAL SERVICES INC - Common Stock (PESI). This represents 33% of the company’s total 18,496,877 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of PERMA FIX ENVIRONMENTAL SERVICES INC - Common Stock (PESI) together control 32% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BlackRock, Inc. 6.5% 1,197,985 +2.6% 0% $15,082,631
VANGUARD GROUP INC 5.2% 968,107 +3.4% 0% $12,188,467
Prescott Group Capital Management, L.L.C. 4.2% 777,142 0% 0.91% $9,784,218
GEODE CAPITAL MANAGEMENT, LLC 2.3% 422,890 +0.39% 0% $5,325,211
HEARTLAND ADVISORS INC 2.2% 400,000 -13% 0.27% $5,036,000
DIAMOND HILL CAPITAL MANAGEMENT INC 2.1% 386,843 -3.7% 0.02% $4,870,353
Potomac Capital Management, Inc. 1.8% 341,800 0% 3.6% $4,303,262
STATE STREET CORP 1.7% 312,267 +4.7% 0% $3,931,442
DIMENSIONAL FUND ADVISORS LP 0.89% 164,787 +5.1% 0% $2,075,216
JANE STREET GROUP, LLC 0.78% 144,239 +148% 0% $1,815,969
MYDA Advisors LLC 0.54% 100,000 0.35% $1,259,000
GOLDMAN SACHS GROUP INC 0.39% 71,937 +12% 0% $905,687
MORGAN STANLEY 0.36% 66,731 -33% 0% $840,144
Informed Momentum Co LLC 0.35% 64,784 0.09% $815,631
GatePass Capital, LLC 0.35% 64,742 0% 0.42% $815,097
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.26% 48,607 0% 0% $611,962
Bank of New York Mellon Corp 0.24% 44,059 -1.5% 0% $554,697
Pale Fire Capital SE 0.23% 43,220 -4.5% 0.07% $544,140
SEI INVESTMENTS CO 0.21% 39,442 0% $496,575
Squarepoint Ops LLC 0.2% 36,842 0% $463,841
ARS Investment Partners, LLC 0.2% 36,145 -12% 0.03% $455,066
WELLS FARGO & COMPANY/MN 0.17% 32,126 +25% 0% $404,466
UBS Group AG 0.16% 28,964 +16% 0% $364,657
BARCLAYS PLC 0.15% 26,981 +11% 0% $339,691
LOS ANGELES CAPITAL MANAGEMENT LLC 0.12% 22,960 0% $321,555

Institutional Holders of PERMA FIX ENVIRONMENTAL SERVICES INC - Common Stock (PESI) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 6,060,893 $76,378,067 -$293,070 $12.59 61
2025 Q3 7,420,583 $75,014,874 +$7,603,495 $10.10 76
2025 Q2 6,691,336 $70,394,269 +$756,228 $10.52 69
2025 Q1 6,667,505 $48,473,520 -$7,285,662 $7.27 73
2024 Q4 7,369,619 $81,581,927 +$16,623,671 $11.07 72
2024 Q3 5,776,549 $71,171,783 +$9,947,481 $12.27 65
2024 Q2 4,817,296 $48,798,859 +$16,967,378 $10.13 57
2024 Q1 3,103,687 $36,902,768 -$795,328 $11.89 39
2023 Q4 3,489,166 $27,424,623 +$688,951 $7.86 42
2023 Q3 3,347,901 $34,983,351 +$635,132 $10.45 43
2023 Q2 3,261,925 $35,815,855 -$2,967,523 $10.98 35
2023 Q1 3,528,811 $41,568,323 +$1,379,458 $11.78 31
2022 Q4 3,580,560 $12,641,713 -$747,112 $3.53 29
2022 Q3 3,792,329 $16,989,000 -$73,480 $4.48 26
2022 Q2 3,795,688 $19,698,000 +$226,593 $5.19 27
2022 Q1 3,751,593 $20,746,000 +$1,443,901 $5.53 27
2021 Q4 3,485,599 $22,062,000 +$446,817 $6.33 26
2021 Q3 3,209,497 $21,344,000 +$163,464 $6.65 21
2021 Q2 3,184,433 $22,768,000 -$483,424 $7.15 23
2021 Q1 3,251,492 $23,841,000 +$459,871 $7.33 21
2020 Q4 3,195,829 $19,078,000 +$538,860 $5.97 22
2020 Q3 3,072,479 $21,658,967 -$245,723 $7.05 22
2020 Q2 3,109,024 $19,860,556 +$76,190 $6.39 23
2020 Q1 3,121,204 $16,258,084 +$440,862 $5.21 21
2019 Q4 3,027,166 $27,538,753 +$1,265,723 $9.10 21
2019 Q3 2,907,169 $13,191,626 +$328,454 $4.54 21
2019 Q2 2,836,180 $11,082,429 +$88,843 $3.91 21
2019 Q1 2,815,781 $9,871,669 +$83,871 $3.51 22
2018 Q4 2,793,322 $6,557,358 -$254,329 $2.35 20
2018 Q3 2,893,337 $12,133,676 -$78,217 $4.20 23
2018 Q2 2,911,985 $13,097,510 +$186,120 $4.50 21
2018 Q1 2,872,180 $11,906,537 +$94,183 $4.15 22
2017 Q4 2,852,970 $10,394,147 +$103,526 $3.65 23
2017 Q3 2,825,092 $10,724,564 -$835,976 $3.80 20
2017 Q2 3,046,098 $11,115,877 +$84,299 $3.65 20
2017 Q1 3,026,583 $9,516,387 +$1,260,678 $3.15 22
2016 Q4 3,002,128 $11,693,622 +$685,975 $3.90 22
2016 Q3 2,823,182 $14,125,922 +$18,514 $5.01 20
2016 Q2 2,820,992 $14,353,767 -$756,233 $5.09 20
2016 Q1 3,003,753 $11,102,096 +$432,780 $3.70 20
2015 Q4 3,032,973 $11,409,000 -$120,923 $3.72 21
2015 Q3 2,914,529 $11,766,000 -$120,657 $4.03 18
2015 Q2 2,946,299 $11,216,050 +$841,640 $3.81 20
2015 Q1 2,725,457 $10,525,400 +$256,973 $3.88 20
2014 Q4 2,640,317 $11,462,750 -$1,006,445 $4.35 19
2014 Q3 2,878,263 $10,974,100 +$139,027 $3.82 19
2014 Q2 2,842,542 $13,051,143 +$209,208 $4.60 15
2014 Q1 2,799,777 $13,586,522 +$213,909 $4.88 16