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Mammoth Energy Services
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Overview Fund Activity

144 hedge funds and large institutions have $1.25B invested in Mammoth Energy Services in 2018 Q2 according to their latest regulatory filings, with 52 funds opening new positions, 56 increasing their positions, 28 reducing their positions, and 14 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
144
Holders Change
+37
Holders Change %
+34.58%
% of All Funds
3.3%
Holding in Top 10
3
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+50%
% of All Funds
0.07%
New
52
Increased
56
Reduced
28
Closed
14
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
CS
1
Credit Suisse
Switzerland
$20.3M
2
LCM
2
Laurion Capital Management
New York
$13.9M
3
HK
3
Horizon Kinetics
New York
$12.6M
4
Principal Financial Group
4
Principal Financial Group
Iowa
$26.9M
5
Prudential Financial
5
Prudential Financial
New Jersey
$7.89M

Top Sellers

1
WC
1
Wexford Capital
Florida
$808M
2
DCM
2
Driehaus Capital Management
Illinois
$5.9M
3
TAM
3
THB Asset Management
Connecticut
$2.59M
4
Deutsche Bank
4
Deutsche Bank
Germany
$976K
5
CAM
5
Cortina Asset Management
Wisconsin
$6.28M
Name Holding Trade Value Shares
Change 		Shares
Change %
JPMorgan Chase & Co
51
JPMorgan Chase & Co
New York
$1.99M -$539K -15,885 -21%
MRI
52
Mad River Investors
Massachusetts
$1.96M +$1.96M +57,700 New
First Trust Advisors
53
First Trust Advisors
Illinois
$1.94M +$1.94M +57,122 New
Morgan Stanley
54
Morgan Stanley
New York
$1.93M -$1.3M -38,324 -40%
BPM
55
Bowling Portfolio Management
Ohio
$1.84M +$1.84M +54,224 New
CA
56
CastleArk Alternatives
Illinois
$1.77M -$1.89M -55,785 -52%
CEP
57
Chicago Equity Partners
Illinois
$1.64M +$1.27M +37,267 +337%
Jane Street
58
Jane Street
New York
$1.57M +$1.35M +39,703 +607%
MSL
59
Mackay Shields LLC
New York
$1.44M +$1.44M +42,300 New
BCM
60
Bridgeway Capital Management
Texas
$1.37M +$1.37M +40,203 New
MAM
61
Martingale Asset Management
Massachusetts
$1.29M +$775K +22,814 +150%
QI
62
QS Investors
New York
$1.29M – – –
CM
63
Castleark Management
Illinois
$1.25M -$1.4M -41,340 -53%
EGI
64
EAM Global Investors
California
$1.16M -$302K -8,886 -21%
ARTA
65
A.R.T. Advisors
New York
$1.07M +$1.07M +31,567 New
HCM
66
Highbridge Capital Management
New York
$984K +$984K +28,985 New
Deutsche Bank
67
Deutsche Bank
Germany
$976K -$2.48M -73,030 -72%
PG
68
Pendal Group
Australia
$907K +$907K +26,706 New
Credit Agricole
69
Credit Agricole
France
$816K +$816K +24,000 New
DTL
70
Dynamic Technology Lab
Singapore
$773K +$519K +15,281 +204%
TI
71
Trexquant Investment
Connecticut
$750K +$282K +8,308 +60%
TCIM
72
TIAA CREF Investment Management
New York
$745K -$927K -27,295 -55%
EWM
73
Evercore Wealth Management
New York
$679K -$509K -15,000 -43%
Bank of America
74
Bank of America
North Carolina
$671K +$569K +16,750 +556%
VRS
75
Virginia Retirement Systems
Virginia
$635K +$319K +9,400 +101%
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3
4 5