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Mammoth Energy Services

Name Holding Trade Value Shares
Change
Change in
Stake
WC
1
Wexford Capital
Florida
$105M
Adage Capital Partners
2
Adage Capital Partners
Massachusetts
$17.2M +$1.95M +400,000 +12%
V
3
ValueWorks
New York
$15.6M -$44.8K -9,200 -0.3%
KWM
4
Kanen Wealth Management
Florida
$7.84M -$372K -76,504 -4%
BlackRock
5
BlackRock
New York
$6.38M +$466K +95,769 +7%
RA
6
Royce & Associates
New York
$5.94M -$53.8K -11,043 -0.9%
Vanguard Group
7
Vanguard Group
Pennsylvania
$3.12M +$95.9K +19,709 +3%
Dimensional Fund Advisors
8
Dimensional Fund Advisors
Texas
$2.28M +$850K +174,726 +55%
Geode Capital Management
9
Geode Capital Management
Massachusetts
$2.17M +$214K +43,886 +10%
Acadian Asset Management
10
Acadian Asset Management
Massachusetts
$2.03M -$304K -62,556 -13%
State Street
11
State Street
Massachusetts
$1.92M +$6.81K +1,400 +0.3%
BCM
12
Bridgeway Capital Management
Texas
$1.65M +$245K +50,312 +16%
XSC
13
X-Square Capital
Puerto Rico
$1.04M
Northern Trust
14
Northern Trust
Illinois
$919K +$56.4K +11,592 +6%
CM
15
CastleKnight Management
New York
$870K +$912K +187,433 New
Invesco
16
Invesco
Georgia
$750K +$325K +66,720 +70%
Renaissance Technologies
17
Renaissance Technologies
New York
$708K -$177K -36,400 -19%
Two Sigma Advisers
18
Two Sigma Advisers
New York
$690K -$308K -63,200 -30%
Russell Investments Group
19
Russell Investments Group
United Kingdom
$650K -$81K -16,647 -11%
Bank of New York Mellon
20
Bank of New York Mellon
New York
$609K -$8.48K -1,743 -1%
Stifel Financial
21
Stifel Financial
Missouri
$497K
Connor, Clark & Lunn Investment Management (CC&L)
22
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$433K -$17.9K -3,675 -4%
GCP
23
GSA Capital Partners
United Kingdom
$413K +$254K +52,097 +141%
PM
24
Penbrook Management
New York
$375K -$1.95K -400 -0.5%
Osaic Holdings
25
Osaic Holdings
Arizona
$371K +$349K +71,650 +862%