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Mammoth Energy Services

Name Holding Trade Value Shares
Change
Change in
Stake
WC
1
Wexford Capital
Florida
$395M
Russell Investments Group
2
Russell Investments Group
United Kingdom
$25.3M +$16.3M +662,754 +89%
Boston Partners
3
Boston Partners
Massachusetts
$16.2M +$16M +649,972 +259%
Vanguard Group
4
Vanguard Group
Pennsylvania
$15.4M +$559K +22,752 +3%
BlackRock
5
BlackRock
New York
$14.3M +$400K +16,266 +2%
Principal Financial Group
6
Principal Financial Group
Iowa
$13.4M -$707K -28,753 -4%
Allianz Asset Management
7
Allianz Asset Management
Germany
$13.2M +$7.01M +285,103 +63%
Janus Henderson Group
8
Janus Henderson Group
$13M -$183K -7,450 -1%
PCM
9
Penn Capital Management
Pennsylvania
$8.66M -$447K -18,184 -4%
Prudential Financial
10
Prudential Financial
New Jersey
$8.25M -$714K -29,067 -6%
Dimensional Fund Advisors
11
Dimensional Fund Advisors
Texas
$6.71M +$2.7M +109,883 +42%
AQR Capital Management
12
AQR Capital Management
Connecticut
$6.68M -$75.9K -3,087 -0.8%
Bank of New York Mellon
13
Bank of New York Mellon
New York
$6.13M +$7.27M +295,894 +658%
RA
14
Royce & Associates
New York
$5.62M -$1.76M -71,420 -19%
New York State Common Retirement Fund
15
New York State Common Retirement Fund
New York
$5.12M +$179K +7,271 +3%
TA
16
Teachers Advisors
New York
$5.06M +$75.5K +3,073 +1%
BCM
17
Bridgeway Capital Management
Texas
$4.52M +$5.25M +213,600 +565%
State Street
18
State Street
Massachusetts
$4.27M +$488K +19,858 +9%
Northern Trust
19
Northern Trust
Illinois
$3.9M -$137K -5,565 -3%
Charles Schwab
20
Charles Schwab
California
$3.56M +$561K +22,812 +13%
CAM
21
Cortina Asset Management
Wisconsin
$3.52M +$729K +29,657 +18%
NC
22
Northpointe Capital
Michigan
$3.04M -$4.2M -171,008 -50%
Ameriprise
23
Ameriprise
Minnesota
$3.02M +$119K +4,839 +3%
Geode Capital Management
24
Geode Capital Management
Massachusetts
$2.98M +$342K +13,907 +9%
AllianceBernstein
25
AllianceBernstein
Tennessee
$2.86M +$869K +35,350 +29%