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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.

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 Market Value Shares Shares
Change 		Shares
Change %
WC
1
Wexford Capital
Florida
$808M 23,795,804 -1,217,960 -5%
Janus Henderson Group
2
Janus Henderson Group
United Kingdom
$43.7M 1,286,416 -22,532 -2%
Principal Financial Group
3
Principal Financial Group
Iowa
$26.9M 792,073 +249,030 +46%
BlackRock
4
BlackRock
New York
$23.3M 685,958 +187,868 +38%
Millennium Management
5
Millennium Management
New York
$21.1M 622,038 +68,786 +12%
Vanguard Group
6
Vanguard Group
Pennsylvania
$20.5M 602,197 +175,941 +41%
CS
7
Credit Suisse
Switzerland
$20.3M 596,347 +579,917 +3,530%
PCM
8
Penn Capital Management
Pennsylvania
$17.2M 506,562 +148,481 +41%
LCM
9
Laurion Capital Management
New York
$13.9M 409,053 +409,053 New
MIM
10
Monashee Investment Management
Massachusetts
– – – –
NC
11
Northpointe Capital
Michigan
$12.7M 373,543 +63,685 +21%
HK
12
Horizon Kinetics
New York
$12.6M 369,697 +369,697 New
RA
13
Royce & Associates
New York
$11.5M 339,372 +47,200 +16%
New York State Common Retirement Fund
14
New York State Common Retirement Fund
New York
$8.98M 264,428 +89,166 +51%
Renaissance Technologies
15
Renaissance Technologies
New York
$7.96M 234,368 +35,968 +18%
Prudential Financial
16
Prudential Financial
New Jersey
$7.89M 232,254 +232,254 New
LM
17
Luminus Management
Texas
$7.58M 223,133 +223,133 New
CAM
18
Cortina Asset Management
Wisconsin
$6.28M 184,797 -62,758 -25%
HI
19
HBK Investments
Texas
$5.94M 175,000 +175,000 New
DCM
20
Driehaus Capital Management
Illinois
$5.9M 173,662 -101,397 -37%
Northern Trust
21
Northern Trust
Illinois
$5.83M 171,671 +69,935 +69%
State Street
22
State Street
Massachusetts
$5.53M 162,816 +23,745 +17%
Citadel Advisors
23
Citadel Advisors
Florida
$5.43M 159,887 +128,891 +416%
GAM
24
Gotham Asset Management
New York
$5.33M 157,018 +157,018 New
AAMU
25
Amundi Asset Management US
Massachusetts
$5.31M 156,300 +156,300 New
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