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Perma-Fix Environmental Services

Name Holding Trade Value Shares
Change
Change in
Stake
Vanguard Group
1
Vanguard Group
Pennsylvania
$5.67M +$129K +11,700 +2%
HA
2
Heartland Advisors
Wisconsin
$5.22M -$337K -30,582 -6%
PCM
3
Potomac Capital Management
New York
$3.1M -$49.9K -4,529 -2%
BlackRock
4
BlackRock
New York
$3.09M -$125K -11,337 -4%
PCM
5
Perritt Capital Management
Illinois
$2.16M
AIP
6
ARS Investment Partners
New York
$1.76M -$51.2K -4,647 -3%
EIM
7
Essex Investment Management
Massachusetts
$1.52M +$1.6M +145,485 New
Geode Capital Management
8
Geode Capital Management
Massachusetts
$1.37M +$31.4K +2,852 +2%
Renaissance Technologies
9
Renaissance Technologies
New York
$1.34M +$46.3K +4,200 +3%
AA
10
Ancora Advisors
Ohio
$1.21M -$373K -33,893 -23%
Susquehanna International Group
11
Susquehanna International Group
Pennsylvania
$876K +$500K +45,403 +118%
Dimensional Fund Advisors
12
Dimensional Fund Advisors
Texas
$801K +$23.1K +2,100 +3%
Millennium Management
13
Millennium Management
New York
$734K +$774K +70,217 New
ACA
14
Apis Capital Advisors
New York
$690K +$66.1K +6,000 +10%
LCM
15
Legato Capital Management
California
$571K +$602K +54,635 New
State Street
16
State Street
Massachusetts
$491K
Citadel Advisors
17
Citadel Advisors
Florida
$455K +$345K +31,324 +256%
MDCM
18
Morgan Dempsey Capital Management
Wisconsin
$419K -$1.78M -161,804 -80%
Citigroup
19
Citigroup
New York
$383K +$404K +36,632 New
QC
20
Quadrature Capital
United Kingdom
$318K +$336K +30,484 New
CSS
21
Cubist Systematic Strategies
Connecticut
$304K +$320K +29,061 New
Northern Trust
22
Northern Trust
Illinois
$267K -$11.9K -1,076 -4%
UCFA
23
United Capital Financial Advisors
Texas
$261K -$110K -10,000 -29%
TI
24
Trexquant Investment
Connecticut
$250K +$263K +23,908 New
Wolverine Trading
25
Wolverine Trading
Illinois
$237K +$249K +22,632 New