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Mammoth Energy Services

Name Holding Trade Value Shares
Change
Change in
Stake
WC
1
Wexford Capital
Florida
$50.6M
Adage Capital Partners
2
Adage Capital Partners
Massachusetts
$10.5M
V
3
ValueWorks
New York
$4.67M -$864K -350,826 -15%
BlackRock
4
BlackRock
New York
$3.33M -$41K -16,636 -1%
Vanguard Group
5
Vanguard Group
Pennsylvania
$2.17M -$28.6K -11,611 -1%
Dimensional Fund Advisors
6
Dimensional Fund Advisors
Texas
$2.14M -$142K -57,500 -6%
Geode Capital Management
7
Geode Capital Management
Massachusetts
$1.33M -$3.83K -1,554 -0.3%
State Street
8
State Street
Massachusetts
$932K -$4.55K -1,847 -0.5%
BCM
9
Bridgeway Capital Management
Texas
$893K +$97.3K +39,510 +11%
Citadel Advisors
10
Citadel Advisors
Florida
$614K +$300K +121,833 +83%
EF
11
Empowered Funds
Pennsylvania
$456K +$60.3K +24,510 +14%
Northern Trust
12
Northern Trust
Illinois
$441K -$3.38K -1,373 -0.7%
JP Morgan Chase
13
JP Morgan Chase
New York
$419K -$7.34K -2,980 -2%
CM
14
CastleKnight Management
New York
$383K
Morgan Stanley
15
Morgan Stanley
New York
$333K -$98.4K -39,960 -22%
Renaissance Technologies
16
Renaissance Technologies
New York
$307K +$4.43K +1,800 +1%
Bank of New York Mellon
17
Bank of New York Mellon
New York
$306K +$3.96K +1,610 +1%
Stifel Financial
18
Stifel Financial
Missouri
$242K
Royal Bank of Canada
19
Royal Bank of Canada
Ontario, Canada
$193K -$7.76K -3,154 -4%
Susquehanna International Group
20
Susquehanna International Group
Pennsylvania
$167K -$122K -49,674 -41%
Deutsche Bank
21
Deutsche Bank
Germany
$165K +$178K +72,183 New
Charles Schwab
22
Charles Schwab
California
$162K
Barclays
23
Barclays
United Kingdom
$136K -$17.9K -7,279 -11%
Wellington Management Group
24
Wellington Management Group
Massachusetts
$129K -$145K -58,814 -51%
Goldman Sachs
25
Goldman Sachs
New York
$119K -$3.74K -1,520 -3%