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Mammoth Energy Services
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Overview Fund Activity

100 hedge funds and large institutions have $249M invested in Mammoth Energy Services in 2019 Q2 according to their latest regulatory filings, with 16 funds opening new positions, 42 increasing their positions, 33 reducing their positions, and 49 closing their positions.

Holders
100
Holders Change
-36
Holders Change %
-26.47%
% of All Funds
2.18%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.02%
New
16
Increased
42
Reduced
33
Closed
49
Calls
$306K
Puts
$1.19M
Net Calls
-$883K
Net Calls Change
-$472K

Top Buyers

1
Russell Investments Group
1
Russell Investments Group
United Kingdom
$13.1M
2
Boston Partners
2
Boston Partners
Massachusetts
$6.6M
3
Janus Henderson Group
3
Janus Henderson Group
United Kingdom
$13.3M
4
Hotchkis & Wiley Capital Management
4
Hotchkis & Wiley Capital Management
California
$4.31M
5
Nuveen Asset Management
5
Nuveen Asset Management
Illinois
$2.03M

Top Sellers

1
Allianz Asset Management
1
Allianz Asset Management
Germany
$0
2
PCM
2
Penn Capital Management
Pennsylvania
$0
3
CAM
3
Cortina Asset Management
Wisconsin
$0
4
Marshall Wace
4
Marshall Wace
United Kingdom
$0
5
CEI
5
Clark Estates Inc
New York
$0
Name Market Value Shares Shares
Change 		Shares
Change %
WC
1
Wexford Capital
Florida
$151M 21,992,677 +4,204 +0%
Janus Henderson Group
2
Janus Henderson Group
United Kingdom
$13.3M 1,929,357 +462,224 +32%
Russell Investments Group
3
Russell Investments Group
United Kingdom
$13.1M 1,905,370 +788,958 +71%
Boston Partners
4
Boston Partners
Massachusetts
$6.6M 959,707 +495,089 +107%
BlackRock
5
BlackRock
New York
$5.94M 863,021 +21,553 +3%
Vanguard Group
6
Vanguard Group
Pennsylvania
$5.02M 729,510 -169,722 -19%
Dimensional Fund Advisors
7
Dimensional Fund Advisors
Texas
$5M 726,792 +151,398 +26%
Principal Financial Group
8
Principal Financial Group
Iowa
$4.87M 708,156 -74,851 -10%
Hotchkis & Wiley Capital Management
9
Hotchkis & Wiley Capital Management
California
$4.31M 626,880 +441,310 +238%
Bank of New York Mellon
10
Bank of New York Mellon
New York
$2.52M 366,890 +15,795 +4%
Schroder Investment Management Group
11
Schroder Investment Management Group
United Kingdom
$2.3M 334,107 -14,200 -4%
Nuveen Asset Management
12
Nuveen Asset Management
Illinois
$2.03M 294,510 +294,510 New
Renaissance Technologies
13
Renaissance Technologies
New York
$1.85M 269,400 +187,300 +228%
Deutsche Bank
14
Deutsche Bank
Germany
$1.83M 266,377 +211,710 +387%
BCM
15
Bridgeway Capital Management
Texas
$1.73M 251,400 – –
State of New Jersey Common Pension Fund D
16
State of New Jersey Common Pension Fund D
New Jersey
$1.72M 250,000 +30,000 +14%
State Street
17
State Street
Massachusetts
$1.68M 244,609 +11,556 +5%
Northern Trust
18
Northern Trust
Illinois
$1.54M 223,319 +1,345 +0.6%
AllianceBernstein
19
AllianceBernstein
Tennessee
$1.37M 198,880 +38,100 +24%
Geode Capital Management
20
Geode Capital Management
Massachusetts
$1.36M 197,500 +14,861 +8%
Ameriprise
21
Ameriprise
Minnesota
$1.2M 174,505 -10,940 -6%
First Trust Advisors
22
First Trust Advisors
Illinois
$1.17M 170,027 +46,008 +37%
MCM
23
Matarin Capital Management
New York
$1.04M 150,721 +150,721 New
AQR Capital Management
24
AQR Capital Management
Connecticut
$965K 140,250 -125,563 -47%
D.E. Shaw & Co
25
D.E. Shaw & Co
New York
$911K 132,384 +38,439 +41%
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