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Mammoth Energy Services

Name Holding Trade Value Shares
Change
Change in
Stake
WC
1
Wexford Capital
Florida
$66.2M
Adage Capital Partners
2
Adage Capital Partners
Massachusetts
$12.3M +$171K +46,277 +1%
V
3
ValueWorks
New York
$8.47M -$1.15M -313,186 -10%
BlackRock
4
BlackRock
New York
$4.43M +$43.4K +11,773 +0.8%
RA
5
Royce & Associates
New York
$4.35M +$364K +98,698 +7%
Dimensional Fund Advisors
6
Dimensional Fund Advisors
Texas
$2.97M +$362K +98,295 +11%
Vanguard Group
7
Vanguard Group
Pennsylvania
$2.84M +$8.67K +2,353 +0.2%
Geode Capital Management
8
Geode Capital Management
Massachusetts
$1.61M +$31.4K +8,526 +2%
BCM
9
Bridgeway Capital Management
Texas
$1.38M +$210K +57,017 +14%
RC
10
Rangeley Capital
Connecticut
$1.3M +$1.59M +432,338 New
State Street
11
State Street
Massachusetts
$1.21M -$4.88K -1,325 -0.3%
Northern Trust
12
Northern Trust
Illinois
$618K +$15.4K +4,175 +2%
CM
13
CastleKnight Management
New York
$502K
EF
14
Empowered Funds
Pennsylvania
$440K +$234K +63,417 +76%
Renaissance Technologies
15
Renaissance Technologies
New York
$401K -$368 -100 -0.1%
Bank of New York Mellon
16
Bank of New York Mellon
New York
$366K -$100K -27,191 -18%
Stifel Financial
17
Stifel Financial
Missouri
$317K +$195 +53 +0.1%
Morgan Stanley
18
Morgan Stanley
New York
$273K +$7.97K +2,163 +2%
Goldman Sachs
19
Goldman Sachs
New York
$268K +$111K +29,988 +50%
Charles Schwab
20
Charles Schwab
California
$212K +$26K +7,064 +11%
JP Morgan Chase
21
JP Morgan Chase
New York
$189K +$191K +51,919 +465%
Barclays
22
Barclays
United Kingdom
$185K +$16.5K +4,468 +8%
Susquehanna International Group
23
Susquehanna International Group
Pennsylvania
$179K -$74K -20,084 -25%
Osaic Holdings
24
Osaic Holdings
Arizona
$179K +$17.3K +4,700 +9%
Wellington Management Group
25
Wellington Management Group
Massachusetts
$149K +$5.49K +1,490 +3%