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Perma-Fix Environmental Services

Name Holding Trade Value Shares
Change
Change in
Stake
Vanguard Group
1
Vanguard Group
Pennsylvania
$4.64M +$404K +47,814 +9%
HA
2
Heartland Advisors
Wisconsin
$3.93M
PCM
3
Potomac Capital Management
New York
$2.35M +$21.2K +2,513 +0.8%
BlackRock
4
BlackRock
New York
$2.31M -$12.3K -1,456 -0.5%
PCM
5
Perritt Capital Management
Illinois
$1.56M -$76.1K -9,000 -4%
EIM
6
Essex Investment Management
Massachusetts
$1.47M +$347K +41,051 +28%
Renaissance Technologies
7
Renaissance Technologies
New York
$1.32M +$335K +39,600 +31%
AIP
8
ARS Investment Partners
New York
$1.28M -$41.1K -4,861 -3%
AA
9
Ancora Advisors
Ohio
$1.13M +$235K +27,773 +24%
Geode Capital Management
10
Geode Capital Management
Massachusetts
$1.05M +$21.1K +2,492 +2%
Susquehanna International Group
11
Susquehanna International Group
Pennsylvania
$709K +$54.4K +6,435 +8%
LCM
12
Legato Capital Management
California
$590K +$172K +20,396 +37%
ACA
13
Apis Capital Advisors
New York
$566K +$50.7K +6,000 +9%
Dimensional Fund Advisors
14
Dimensional Fund Advisors
Texas
$541K -$65.8K -7,785 -10%
PGCM
15
Prescott Group Capital Management
Oklahoma
$529K +$568K +67,247 New
Millennium Management
16
Millennium Management
New York
$377K -$189K -22,315 -32%
State Street
17
State Street
Massachusetts
$371K +$1.69K +200 +0.4%
Citadel Advisors
18
Citadel Advisors
Florida
$329K -$14.4K -1,707 -4%
MDCM
19
Morgan Dempsey Capital Management
Wisconsin
$315K
QC
20
Quadrature Capital
United Kingdom
$267K +$30K +3,545 +12%
Qube Research & Technologies (QRT)
21
Qube Research & Technologies (QRT)
United Kingdom
$264K +$257K +30,356 +941%
B
22
Bailard
California
$249K +$268K +31,665 New
Northern Trust
23
Northern Trust
Illinois
$212K +$12K +1,419 +6%
BCM
24
Bridgeway Capital Management
Texas
$174K +$187K +22,100 New
CC
25
Commons Capital
Massachusetts
$173K