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Mammoth Energy Services
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Overview Fund Activity

107 hedge funds and large institutions have $1.06B invested in Mammoth Energy Services in 2018 Q1 according to their latest regulatory filings, with 52 funds opening new positions, 23 increasing their positions, 25 reducing their positions, and 8 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
107
Holders Change
+44
Holders Change %
+69.84%
% of All Funds
2.46%
Holding in Top 10
2
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.05%
New
52
Increased
23
Reduced
25
Closed
8
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
Millennium Management
1
Millennium Management
New York
$17.7M
2
PCM
2
Penn Capital Management
Pennsylvania
$11.5M
3
DCM
3
Driehaus Capital Management
Illinois
$8.82M
4
Renaissance Technologies
4
Renaissance Technologies
New York
$6.36M
5
NC
5
Northpointe Capital
Michigan
$9.93M

Top Sellers

1
Janus Henderson Group
1
Janus Henderson Group
United Kingdom
$42M
2
TAM
2
THB Asset Management
Connecticut
$4.9M
3
CAM
3
Cortina Asset Management
Wisconsin
$7.94M
4
American Century Companies
4
American Century Companies
Missouri
$578K
5
Boston Partners
5
Boston Partners
Massachusetts
$2.7M
Name Holding Trade Value Shares
Change 		Shares
Change %
Luther King Capital Management (LKCM)
26
Luther King Capital Management (LKCM)
Texas
$2.45M +$705K +22,000 +40%
JPMorgan Chase & Co
27
JPMorgan Chase & Co
New York
$2.39M +$1.39M +43,411 +139%
Dimensional Fund Advisors
28
Dimensional Fund Advisors
Texas
$2.23M +$2.23M +69,422 New
RJA
29
Raymond James & Associates
Florida
$2.05M +$2.05M +63,894 New
EI
30
EAM Investors
California
$1.93M +$1.93M +60,101 New
Ohio Public Employees Retirement System (OPERS)
31
Ohio Public Employees Retirement System (OPERS)
Ohio
$1.79M +$1.79M +55,675 New
ZIM
32
Zacks Investment Management
Illinois
$1.76M -$80.6K -2,516 -4%
AIM
33
Alambic Investment Management
California
$1.63M +$1.63M +50,680 New
TCIM
34
TIAA CREF Investment Management
New York
$1.58M +$942K +29,382 +148%
Bank of New York Mellon
35
Bank of New York Mellon
New York
$1.39M +$321K +10,006 +30%
EGI
36
EAM Global Investors
California
$1.38M +$1.38M +43,164 New
EGM
37
Engineers Gate Manager
New York
$1.34M +$1.34M +41,674 New
Wells Fargo
38
Wells Fargo
California
$1.24M -$537K -16,760 -30%
QI
39
QS Investors
New York
$1.22M -$77K -2,401 -6%
EMG
40
Ellington Management Group
Connecticut
$1.15M +$1.15M +36,000 New
EWM
41
Evercore Wealth Management
New York
$1.12M +$481K +15,000 +75%
PAM
42
Panagora Asset Management
Massachusetts
$1.07M – – –
Victory Capital Management
43
Victory Capital Management
Texas
$1M -$1.51M -47,109 -60%
Citadel Advisors
44
Citadel Advisors
Florida
$993K +$993K +30,996 New
Ameriprise
45
Ameriprise
Minnesota
$929K +$929K +28,989 New
Goldman Sachs
46
Goldman Sachs
New York
$780K -$135K -4,214 -15%
OAM
47
Oxford Asset Management
United Kingdom
$729K +$729K +22,739 New
American Century Companies
48
American Century Companies
Missouri
$578K -$2.67M -83,247 -82%
EOCM
49
Energy Opportunities Capital Management
Texas
$558K – – –
MFIM
50
Mesirow Financial Investment Management
Illinois
$551K -$394K -12,288 -42%
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