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Mammoth Energy Services

Name Holding Trade Value Shares
Change
Change in
Stake
WC
1
Wexford Capital
Florida
$35.3M -$1 -1 -0%
V
2
ValueWorks
New York
$5.54M -$241K -163,895 -5%
BCM
3
Bridgeway Capital Management
Texas
$754K
Millennium Management
4
Millennium Management
New York
$527K +$402K +272,612 +480%
BlackRock
5
BlackRock
New York
$469K -$1.77K -1,203 -0.4%
Dimensional Fund Advisors
6
Dimensional Fund Advisors
Texas
$445K -$277K -188,098 -40%
Invesco
7
Invesco
Georgia
$361K -$11K -7,456 -3%
Vanguard Group
8
Vanguard Group
Pennsylvania
$355K -$276K -187,125 -46%
WG
9
Winton Group
United Kingdom
$311K -$144K -97,723 -33%
Two Sigma Advisers
10
Two Sigma Advisers
New York
$278K -$161K -109,600 -39%
Geode Capital Management
11
Geode Capital Management
Massachusetts
$202K -$743 -504 -0.4%
Goldman Sachs
12
Goldman Sachs
New York
$165K +$126K +85,713 +500%
Bank of New York Mellon
13
Bank of New York Mellon
New York
$145K
Squarepoint
14
Squarepoint
New York
$131K -$7.89K -5,356 -6%
Northern Trust
15
Northern Trust
Illinois
$112K +$31.7K +21,504 +44%
Stifel Financial
16
Stifel Financial
Missouri
$89K
TF
17
Trek Financial
Arizona
$88K -$14.9K -10,080 -16%
Cambridge Investment Research Advisors
18
Cambridge Investment Research Advisors
Iowa
$86K +$43.7K +29,680 +122%
Renaissance Technologies
19
Renaissance Technologies
New York
$86K +$64.1K +43,500 +420%
NJBEST
20
New Jersey Better Educational Savings Trust
New Jersey
$51K
D.E. Shaw & Co
21
D.E. Shaw & Co
New York
$49K -$206K -140,073 -82%
TRCT
22
Tower Research Capital (TRC)
New York
$43K +$34.7K +23,529 +726%
NSEDCP
23
NJ State Employees Deferred Compensation Plan
New Jersey
$38K
Jane Street
24
Jane Street
New York
$30K -$75.8K -51,418 -73%
FAAS
25
First Allied Advisory Services
California
$29K