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Mammoth Energy Services
TUSK

Overview Fund Activity

100 hedge funds and large institutions have $249M invested in Mammoth Energy Services in 2019 Q2 according to their latest regulatory filings, with 16 funds opening new positions, 42 increasing their positions, 33 reducing their positions, and 49 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
100
Holders Change
-36
Holders Change %
-26.47%
% of All Funds
2.18%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.02%
New
16
Increased
42
Reduced
33
Closed
49
Calls
$306K
Puts
$1.19M
Net Calls
-$883K
Net Calls Change
-$472K

Top Buyers

1
Russell Investments Group
1
Russell Investments Group
United Kingdom
$13.1M
2
Boston Partners
2
Boston Partners
Massachusetts
$6.6M
3
Janus Henderson Group
3
Janus Henderson Group
United Kingdom
$13.3M
4
Hotchkis & Wiley Capital Management
4
Hotchkis & Wiley Capital Management
California
$4.31M
5
Nuveen Asset Management
5
Nuveen Asset Management
Illinois
$2.03M

Top Sellers

1
Allianz Asset Management
1
Allianz Asset Management
Germany
$0
2
PCM
2
Penn Capital Management
Pennsylvania
$0
3
CAM
3
Cortina Asset Management
Wisconsin
$0
4
Marshall Wace
4
Marshall Wace
United Kingdom
$0
5
CEI
5
Clark Estates Inc
New York
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
DTL
126
Dynamic Technology Lab
Singapore
– -$289K -17,355 Closed
DCM
127
Dupont Capital Management
Delaware
– -$271K -16,264 Closed
NC
128
Northpointe Capital
Michigan
– -$246K -14,769 Closed
ECM
129
Element Capital Management
New York
– -$244K -14,665 Closed
Voloridge Investment Management
130
Voloridge Investment Management
Florida
– -$219K -13,175 Closed
AIM
131
Alambic Investment Management
California
– -$188K -11,304 Closed
Wolverine Trading
132
Wolverine Trading
Illinois
– -$176K -10,566 Closed
YCM
133
Yaupon Capital Management
New York
– -$176K -10,547 Closed
HI
134
HBK Investments
Texas
– -$173K -10,400 Closed
State of Tennessee, Department of Treasury
135
State of Tennessee, Department of Treasury
Tennessee
– -$171K -10,276 Closed
SAM
136
Shell Asset Management
Netherlands
– -$140K -8,397 Closed
MWNA
137
Marshall Wace North America
New York
– -$106K -6,346 Closed
PCM
138
Prelude Capital Management
New York
– -$76K -4,550 Closed
OAM
139
Oppenheimer Asset Management
New York
– -$73K -4,398 Closed
CM
140
Caption Management
Oklahoma
– -$48K -2,900 Closed
Parallax Volatility Advisers
141
Parallax Volatility Advisers
California
– -$35K -2,098 Closed
TRCT
142
Tower Research Capital (TRC)
New York
– -$32K -1,940 Closed
Simplex Trading
143
Simplex Trading
Illinois
– -$26K -1,597 Closed
New York State Teachers Retirement System (NYSTRS)
144
New York State Teachers Retirement System (NYSTRS)
New York
– -$18K -1,100 Closed
Royal Bank of Canada
145
Royal Bank of Canada
Ontario, Canada
– -$10K -597 Closed
FHA
146
First Horizon Advisors
Tennessee
– -$2K -121 Closed
Rockefeller Capital Management
147
Rockefeller Capital Management
New York
– -$1K -40 Closed
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