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Perma-Fix Environmental Services
PESI

Overview Fund Activity

67 hedge funds and large institutions have $68.8M invested in Perma-Fix Environmental Services in 2025 Q2 according to their latest regulatory filings, with 7 funds opening new positions, 26 increasing their positions, 20 reducing their positions, and 13 closing their positions.

Holders
67
Holders Change
-7
Holders Change %
-9.46%
% of All Funds
0.9%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
7
Increased
26
Reduced
20
Closed
13
Calls
$406K
Puts
$429K
Net Calls
-$23K
Net Calls Change
+$309K

Top Buyers

1
State Street
1
State Street
Massachusetts
$3.03M
2
MCO
2
MAK Capital One
New York
$974K
3
BlackRock
3
BlackRock
New York
$12.4M
4
Morgan Stanley
4
Morgan Stanley
New York
$726K
5
Vanguard Group
5
Vanguard Group
Pennsylvania
$9.62M

Top Sellers

1
Alyeska Investment Group
1
Alyeska Investment Group
Illinois
$0
2
Citadel Advisors
2
Citadel Advisors
Florida
$321K
3
TSW
3
Thompson Siegel & Walmsley
Virginia
$0
4
Squarepoint
4
Squarepoint
New York
$0
5
VanEck Associates
5
VanEck Associates
New York
$1.82M
Name Market Value Shares Shares
Change 		Shares
Change %
BlackRock
1
BlackRock
New York
$12.4M 1,180,484 +87,962 +8%
Vanguard Group
2
Vanguard Group
Pennsylvania
$9.62M 914,607 +29,220 +3%
PGCM
3
Prescott Group Capital Management
Oklahoma
$8.18M 777,142 – –
HA
4
Heartland Advisors
Wisconsin
$5.06M 481,150 +25,750 +6%
Geode Capital Management
5
Geode Capital Management
Massachusetts
$4.44M 421,959 +28,781 +7%
Diamond Hill Capital Management
6
Diamond Hill Capital Management
Ohio
$4.15M 394,416 -22,246 -5%
State Street
7
State Street
Massachusetts
$3.03M 288,483 +96,209 +50%
EIM
8
Essex Investment Management
Massachusetts
$2M 189,715 -1,372 -0.7%
AA
9
Ancora Advisors
Ohio
$1.9M 180,789 +22,944 +15%
PCM
10
Perritt Capital Management
Illinois
$1.86M 176,700 -11,000 -6%
VanEck Associates
11
VanEck Associates
New York
$1.82M 172,797 -47,215 -21%
MA
12
MYDA Advisors
New York
$1.78M 169,208 -30,792 -15%
Dimensional Fund Advisors
13
Dimensional Fund Advisors
Texas
$1.6M 152,375 +28,413 +23%
Northern Trust
14
Northern Trust
Illinois
$1.41M 133,806 -5,398 -4%
MCO
15
MAK Capital One
New York
$974K 92,610 +92,610 New
AIP
16
ARS Investment Partners
New York
$886K 84,225 +986 +1%
Morgan Stanley
17
Morgan Stanley
New York
$726K 69,036 +32,283 +88%
LCM
18
Legato Capital Management
California
$594K 56,459 -139 -0.2%
Charles Schwab
19
Charles Schwab
California
$520K 49,390 +3,146 +7%
Bank of New York Mellon
20
Bank of New York Mellon
New York
$467K 44,356 +10,473 +31%
UBS Group
21
UBS Group
Switzerland
$358K 34,054 -22,998 -40%
CWM
22
Congress Wealth Management
Massachusetts
$321K 30,500 +10,000 +49%
Citadel Advisors
23
Citadel Advisors
Florida
$321K 30,473 -82,430 -73%
CC
24
Commons Capital
Massachusetts
$319K 30,350 – –
Barclays
25
Barclays
United Kingdom
$310K 29,500 +11,108 +60%
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