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Mammoth Energy Services
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Overview Fund Activity

69 hedge funds and large institutions have $71.3M invested in Mammoth Energy Services in 2019 Q4 according to their latest regulatory filings, with 9 funds opening new positions, 21 increasing their positions, 31 reducing their positions, and 27 closing their positions.

Holders
69
Holders Change
-18
Holders Change %
-20.69%
% of All Funds
1.36%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.02%
New
9
Increased
21
Reduced
31
Closed
27
Calls
$97K
Puts
–
Net Calls
+$97K
Net Calls Change
-$19K

Top Buyers

1
V
1
ValueWorks
New York
$4.84M
2
BCM
2
Bridgeway Capital Management
Texas
$927K
3
Two Sigma Advisers
3
Two Sigma Advisers
New York
$702K
4
Two Sigma Investments
4
Two Sigma Investments
New York
$1.05M
5
D.E. Shaw & Co
5
D.E. Shaw & Co
New York
$740K

Top Sellers

1
Hotchkis & Wiley Capital Management
1
Hotchkis & Wiley Capital Management
California
$0
2
Russell Investments Group
2
Russell Investments Group
United Kingdom
$2.73M
3
Morgan Stanley
3
Morgan Stanley
New York
$392K
4
First Trust Advisors
4
First Trust Advisors
Illinois
$64K
5
Nuveen Asset Management
5
Nuveen Asset Management
Illinois
$123K
Name Market Value Shares Shares
Change 		Shares
Change %
Walleye Trading
76
Walleye Trading
New York
– – -71,181 Closed
LSV Asset Management
77
LSV Asset Management
Illinois
– – -70,505 Closed
SEI Investments
78
SEI Investments
Pennsylvania
– – -70,000 Closed
Prudential Financial
79
Prudential Financial
New Jersey
– – -48,456 Closed
LCAM
80
London & Capital Asset Management
United Kingdom
– – -36,920 Closed
JG
81
Jefferies Group
New York
– – -31,985 Closed
Renaissance Technologies
82
Renaissance Technologies
New York
– – -28,149 Closed
Swiss National Bank
83
Swiss National Bank
Switzerland
– – -24,900 Closed
T. Rowe Price Associates
84
T. Rowe Price Associates
Maryland
– – -19,174 Closed
Jane Street
85
Jane Street
New York
– – -18,511 Closed
FA
86
Fortis Advisors
Pennsylvania
– – -15,978 Closed
MAM
87
Meeder Asset Management
Ohio
– – -15,140 Closed
ACI
88
AMP Capital Investors
Australia
– – -12,907 Closed
CS
89
Credit Suisse
Switzerland
– – -11,253 Closed
Citadel Advisors
90
Citadel Advisors
Florida
– – -10,361 Closed
Victory Capital Management
91
Victory Capital Management
Texas
– – -6,303 Closed
Royal Bank of Canada
92
Royal Bank of Canada
Ontario, Canada
– – -1,524 Closed
Zurich Cantonal Bank
93
Zurich Cantonal Bank
Switzerland
– – -480 Closed
Nisa Investment Advisors
94
Nisa Investment Advisors
Missouri
– – -390 Closed
Fidelity Investments
95
Fidelity Investments
Massachusetts
– – -370 Closed
RA
96
Royce & Associates
New York
– – -183 Closed
CFGS
97
Concourse Financial Group Securities
Alabama
– – – –
Simplex Trading
98
Simplex Trading
Illinois
– – – –
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