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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.

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
LCM
4
Laurion Capital Management
New York
$462K
5
HK
5
Horizon Kinetics
New York
$2.84M
Name Market Value Shares Shares
Change 		Shares
Change %
WC
1
Wexford Capital
Florida
$640M 21,988,473 -1,807,331 -8%
Vanguard Group
2
Vanguard Group
Pennsylvania
$24.3M 834,739 +232,542 +39%
BlackRock
3
BlackRock
New York
$22.6M 778,113 +92,155 +13%
Principal Financial Group
4
Principal Financial Group
Iowa
$22.5M 774,015 -18,058 -2%
Russell Investments Group
5
Russell Investments Group
United Kingdom
$21.6M 743,870 +606,457 +441%
Janus Henderson Group
6
Janus Henderson Group
United Kingdom
$21.3M 731,454 -554,962 -43%
PCM
7
Penn Capital Management
Pennsylvania
$15.2M 474,970 -31,592 -6%
Prudential Financial
8
Prudential Financial
New Jersey
$14.2M 488,025 +255,771 +110%
Millennium Management
9
Millennium Management
New York
$13.2M 452,959 -169,079 -27%
Allianz Asset Management
10
Allianz Asset Management
Germany
$13.1M 449,113 +449,113 New
RA
11
Royce & Associates
New York
$11.2M 383,859 +44,487 +13%
AQR Capital Management
12
AQR Capital Management
Connecticut
$10.9M 374,546 +277,218 +285%
NC
13
Northpointe Capital
Michigan
$9.9M 340,278 -33,265 -9%
TA
14
Teachers Advisors
New York
$8.11M 278,555 +261,253 +1,510%
New York State Common Retirement Fund
15
New York State Common Retirement Fund
New York
$8.08M 277,655 +13,227 +5%
Dimensional Fund Advisors
16
Dimensional Fund Advisors
Texas
$7.66M 263,162 +163,137 +163%
Boston Partners
17
Boston Partners
Massachusetts
$7.3M 250,848 +99,783 +66%
Citadel Advisors
18
Citadel Advisors
Florida
$6.93M 238,163 +78,276 +49%
GAM
19
Gotham Asset Management
New York
$6.86M 235,610 +78,592 +50%
Northern Trust
20
Northern Trust
Illinois
$6.47M 222,325 +50,654 +30%
State Street
21
State Street
Massachusetts
$6.33M 217,399 +54,583 +34%
Franklin Resources
22
Franklin Resources
California
$5.68M 195,192 +70,200 +56%
Charles Schwab
23
Charles Schwab
California
$5.09M 174,877 +47,085 +37%
CAM
24
Cortina Asset Management
Wisconsin
$4.83M 165,894 -18,903 -10%
Ameriprise
25
Ameriprise
Minnesota
$4.74M 162,950 +103,234 +173%
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