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Perma-Fix Environmental Services

Name Holding Trade Value Shares
Change
Change in
Stake
HA
1
Heartland Advisors
Wisconsin
$7.99M -$2.81M -432,200 -39%
Vanguard Group
2
Vanguard Group
Pennsylvania
$5.81M +$338K +52,020 +12%
PCM
3
Potomac Capital Management
New York
$3.82M +$542K +83,320 +35%
BlackRock
4
BlackRock
New York
$3.54M -$9.03K -1,388 -0.5%
PCM
5
Perritt Capital Management
Illinois
$2.78M -$70.8K -10,877 -4%
MDCM
6
Morgan Dempsey Capital Management
Wisconsin
$2.39M +$114K +17,598 +9%
AA
7
Ancora Advisors
Ohio
$2.08M +$39.3K +6,046 +4%
AIP
8
ARS Investment Partners
New York
$1.83M -$113K -17,384 -10%
Geode Capital Management
9
Geode Capital Management
Massachusetts
$1.62M +$275K +42,217 +44%
EI
10
EAM Investors
California
$1.53M +$845K +129,921 New
Renaissance Technologies
11
Renaissance Technologies
New York
$1.32M -$89.8K -13,800 -11%
ACA
12
Apis Capital Advisors
New York
$1.23M +$677K +104,000 New
Susquehanna International Group
13
Susquehanna International Group
Pennsylvania
$798K +$296K +45,441 +203%
Dimensional Fund Advisors
14
Dimensional Fund Advisors
Texas
$795K +$439K +67,452 New
State Street
15
State Street
Massachusetts
$721K
Belvedere Trading
16
Belvedere Trading
Illinois
$664K +$367K +56,364 New
UCFA
17
United Capital Financial Advisors
Texas
$412K +$228K +35,000 New
Jane Street
18
Jane Street
New York
$361K +$200K +30,669 New
Northern Trust
19
Northern Trust
Illinois
$297K +$13.1K +2,010 +9%
CTA
20
Chesley Taft & Associates
Illinois
$283K
CC
21
Commons Capital
Massachusetts
$259K
Simplex Trading
22
Simplex Trading
Illinois
$250K +$138K +21,246 New
Group One Trading
23
Group One Trading
Illinois
$241K +$133K +20,490 New
Wolverine Trading
24
Wolverine Trading
Illinois
$200K +$111K +17,076 New
Janney Montgomery Scott
25
Janney Montgomery Scott
Pennsylvania
$198K +$109K +16,796 New