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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 %
AG
101
Aperio Group
California
$244K +$244K +8,382 New
EA
102
Emerald Advisers
Pennsylvania
$242K +$24.1K +830 +11%
AIG
103
American International Group
New York
$241K +$80.6K +2,773 +50%
CS
104
Credit Suisse
Switzerland
$240K -$17.2M -588,127 -99%
AIM
105
Alambic Investment Management
California
$227K -$1.79M -61,333 -89%
HI
106
HBK Investments
Texas
$209K -$4.88M -167,818 -96%
MIM
107
MetLife Investment Management
New Jersey
$183K +$183K +6,277 New
MLICM
108
Metropolitan Life Insurance Company (MetLife)
New York
$132K +$132K +4,547 New
Simplex Trading
109
Simplex Trading
Illinois
$124K +$124K +4,291 New
Group One Trading
110
Group One Trading
Illinois
$108K +$108K +3,714 New
Macquarie Group
111
Macquarie Group
Australia
$98K -$207K -7,100 -68%
PNC Financial Services Group
112
PNC Financial Services Group
Pennsylvania
$87K -$48.5K -1,673 -36%
Parallax Volatility Advisers
113
Parallax Volatility Advisers
California
$61K +$61K +2,081 New
Legal & General Group
114
Legal & General Group
United Kingdom
$55K +$21.1K +719 +62%
PCM
115
Prelude Capital Management
New York
$54K -$14.6K -505 -21%
MAM
116
Meeder Asset Management
Ohio
$45K -$75.9K -2,628 -63%
MOACM
117
Mutual of America Capital Management
New York
$44K – – –
Zurich Cantonal Bank
118
Zurich Cantonal Bank
Switzerland
$33K – – –
AIP
119
Ameritas Investment Partners
Nebraska
$31K +$9.45K +322 +44%
Victory Capital Management
120
Victory Capital Management
Texas
$24K – – –
Canada Life
121
Canada Life
Manitoba, Canada
$23K – – –
CG
122
Cutler Group
California
$23K +$23K +800 New
Royal Bank of Canada
123
Royal Bank of Canada
Ontario, Canada
$19K -$64.4K -2,249 -77%
CAPTRUST Financial Advisors
124
CAPTRUST Financial Advisors
North Carolina
$19K -$8.47K -292 -31%
Federated Hermes
125
Federated Hermes
Pennsylvania
$19K -$3.15K -107 -14%
3 4
5
6 7