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Mammoth Energy Services
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Overview Fund Activity

136 hedge funds and large institutions have $1.02B invested in Mammoth Energy Services in 2018 Q3 according to their latest regulatory filings, with 33 funds opening new positions, 52 increasing their positions, 41 reducing their positions, and 40 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
136
Holders Change
-8
Holders Change %
-5.56%
% of All Funds
3.11%
Holding in Top 10
2
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-33.33%
% of All Funds
0.05%
New
33
Increased
52
Reduced
41
Closed
40
Calls
$2.89M
Puts
$3.55M
Net Calls
-$665K
Net Calls Change
-$665K

Top Buyers

1
Russell Investments Group
1
Russell Investments Group
United Kingdom
$21.6M
2
Allianz Asset Management
2
Allianz Asset Management
Germany
$13.1M
3
AQR Capital Management
3
AQR Capital Management
Connecticut
$10.9M
4
TA
4
Teachers Advisors
New York
$8.11M
5
Prudential Financial
5
Prudential Financial
New Jersey
$14.2M

Top Sellers

1
WC
1
Wexford Capital
Florida
$640M
2
CS
2
Credit Suisse
Switzerland
$240K
3
Janus Henderson Group
3
Janus Henderson Group
United Kingdom
$21.3M
4
MIM
4
Monashee Investment Management
Massachusetts
$0
5
LCM
5
Laurion Capital Management
New York
$462K
Name Holding Trade Value Shares
Change 		Shares
Change %
AA
76
ALPS Advisors
Colorado
$494K +$43K +1,479 +10%
LCM
77
Laurion Capital Management
New York
$462K -$11.4M -393,147 -96%
TI
78
Trexquant Investment
Connecticut
$449K -$193K -6,633 -30%
T. Rowe Price Associates
79
T. Rowe Price Associates
Maryland
$446K +$446K +15,317 New
GC
80
Globeflex Capital
California
$427K +$23.3K +800 +6%
GC
81
Guggenheim Capital
Illinois
$418K +$418K +14,356 New
Swiss National Bank
82
Swiss National Bank
Switzerland
$416K – – –
SRAM
83
Stone Ridge Asset Management
New York
$415K +$110K +3,762 +36%
MFIM
84
Mesirow Financial Investment Management
Illinois
$393K -$31K -1,067 -7%
ECM
85
Element Capital Management
New York
$393K +$393K +13,520 New
EMG
86
Ellington Management Group
Connecticut
$384K +$55.3K +1,900 +17%
AL
87
AJO LP
Pennsylvania
$378K +$378K +12,983 New
WG
88
Winton Group
United Kingdom
$371K +$98K +3,366 +36%
OSAM
89
O'Shaughnessy Asset Management
Connecticut
$367K +$367K +12,604 New
Wolverine Trading
90
Wolverine Trading
Illinois
$342K +$342K +11,762 New
RhumbLine Advisers
91
RhumbLine Advisers
Massachusetts
$319K +$50K +1,717 +19%
CSS
92
Cubist Systematic Strategies
Connecticut
$314K +$314K +10,778 New
Bank of Montreal
93
Bank of Montreal
Ontario, Canada
$287K +$69.8K +2,399 +32%
CIM
94
Cambria Investment Management
California
$279K +$41K +1,410 +17%
SAM
95
Shell Asset Management
Netherlands
$265K +$265K +9,097 New
UBS Group
96
UBS Group
Switzerland
$261K -$249K -8,568 -49%
AIM
97
Assured Investment Management
New York
$259K +$44.8K +1,539 +21%
Wellington Management Group
98
Wellington Management Group
Massachusetts
$255K -$1.74M -59,677 -87%
State Board of Administration of Florida Retirement System
99
State Board of Administration of Florida Retirement System
Florida
$252K – – –
MC
100
Menta Capital
California
$246K -$114K -3,923 -32%
2 3
4
5 6