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

Top Sellers

1
WC
Wexford Capital
Florida
$640M
2
CS
Credit Suisse
Switzerland
$240K
3
Janus Henderson Group
Janus Henderson Group
United Kingdom
$21.3M
4
MIM
Monashee Investment Management
Massachusetts
$0
5
LCM
Laurion Capital Management
New York
$462K
Name Holding Trade Value Shares
Change 		Shares
Change %
AG
126
Advisor Group
Arizona
$17K +$15.1K +518 +785%
LTFS
127
Ladenburg Thalmann Financial Services
Florida
$13K +$383 +12 +3%
LFA
128
Legacy Financial Advisors
Kentucky
$12K +$617 +22 +5%
CFGS
129
Concourse Financial Group Securities
Alabama
$11K +$11K +372 New
BNP Paribas Financial Markets
130
BNP Paribas Financial Markets
France
$8.24K – – –
SEI Investments
131
SEI Investments
Pennsylvania
$6K -$217K -8,268 -97%
TRCT
132
Tower Research Capital (TRC)
New York
$5K -$457K -16,804 -99%
SWP
133
Stratos Wealth Partners
Ohio
$4K +$4K +122 New
DA
134
Denali Advisors
California
$1K +$1K +38 New
VFA
135
Valeo Financial Advisors
Indiana
$1K +$1K +42 New
LM
136
Luminus Management
Texas
– -$7.58M -223,133 Closed
DCM
137
Driehaus Capital Management
Illinois
– -$5.9M -173,662 Closed
AAMU
138
Amundi Asset Management US
Massachusetts
– -$5.31M -156,300 Closed
GLA
139
Great Lakes Advisors
Illinois
– -$3.63M -106,841 Closed
PL
140
PWMCO LLC
Illinois
– -$3.47M -102,203 Closed
EI
141
EAM Investors
California
– -$3.05M -89,880 Closed
ZIM
142
Zacks Investment Management
Illinois
– -$3.01M -88,537 Closed
MS
143
Maven Securities
Jersey
– -$2.84M -83,500 Closed
TAM
144
THB Asset Management
Connecticut
– -$2.59M -76,334 Closed
CA
145
CastleArk Alternatives
Illinois
– -$1.77M -52,018 Closed
CM
146
Castleark Management
Illinois
– -$1.25M -36,784 Closed
EGI
147
EAM Global Investors
California
– -$1.16M -34,278 Closed
ARTA
148
A.R.T. Advisors
New York
– -$1.07M -31,567 Closed
HCM
149
Highbridge Capital Management
New York
– -$984K -28,985 Closed
PG
150
Pendal Group
Australia
– -$907K -26,706 Closed
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