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Mammoth Energy Services
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Overview Fund Activity

87 hedge funds and large institutions have $85.5M invested in Mammoth Energy Services in 2019 Q3 according to their latest regulatory filings, with 10 funds opening new positions, 37 increasing their positions, 29 reducing their positions, and 23 closing their positions.

Holders
87
Holders Change
-13
Holders Change %
-13%
% of All Funds
1.91%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.02%
New
10
Increased
37
Reduced
29
Closed
23
Calls
$168K
Puts
$52K
Net Calls
+$116K
Net Calls Change
+$999K

Top Buyers

1
Morgan Stanley
1
Morgan Stanley
New York
$2M
2
Hotchkis & Wiley Capital Management
2
Hotchkis & Wiley Capital Management
California
$2.27M
3
Russell Investments Group
3
Russell Investments Group
United Kingdom
$5.36M
4
Two Sigma Investments
4
Two Sigma Investments
New York
$879K
5
Goldman Sachs
5
Goldman Sachs
New York
$752K

Top Sellers

1
Janus Henderson Group
1
Janus Henderson Group
United Kingdom
$483K
2
Principal Financial Group
2
Principal Financial Group
Iowa
$28K
3
State of New Jersey Common Pension Fund D
3
State of New Jersey Common Pension Fund D
New Jersey
$0
4
Boston Partners
4
Boston Partners
Massachusetts
$941K
5
MCM
5
Matarin Capital Management
New York
$0
Name Market Value Shares Shares
Change 		Shares
Change %
WC
1
Wexford Capital
Florida
$54.5M 21,992,677 – –
Russell Investments Group
2
Russell Investments Group
United Kingdom
$5.36M 2,160,958 +255,588 +13%
Hotchkis & Wiley Capital Management
3
Hotchkis & Wiley Capital Management
California
$2.27M 915,560 +288,680 +46%
BlackRock
4
BlackRock
New York
$2.21M 890,256 +27,235 +3%
Dimensional Fund Advisors
5
Dimensional Fund Advisors
Texas
$2.07M 834,133 +107,341 +15%
Morgan Stanley
6
Morgan Stanley
New York
$2M 808,513 +714,072 +756%
Vanguard Group
7
Vanguard Group
Pennsylvania
$1.54M 620,926 -108,584 -15%
Boston Partners
8
Boston Partners
Massachusetts
$941K 379,482 -580,225 -60%
First Trust Advisors
9
First Trust Advisors
Illinois
$918K 370,250 +200,223 +118%
Two Sigma Investments
10
Two Sigma Investments
New York
$879K 354,355 +251,934 +246%
State Street
11
State Street
Massachusetts
$795K 320,701 +76,092 +31%
Nuveen Asset Management
12
Nuveen Asset Management
Illinois
$753K 303,242 +8,732 +3%
Goldman Sachs
13
Goldman Sachs
New York
$752K 303,033 +227,649 +302%
Schroder Investment Management Group
14
Schroder Investment Management Group
United Kingdom
$689K 276,207 -57,900 -17%
Bank of New York Mellon
15
Bank of New York Mellon
New York
$562K 226,568 -140,322 -38%
BCM
16
Bridgeway Capital Management
Texas
$549K 221,400 -30,000 -12%
D.E. Shaw & Co
17
D.E. Shaw & Co
New York
$537K 216,350 +83,966 +63%
Northern Trust
18
Northern Trust
Illinois
$522K 210,447 -12,872 -6%
Geode Capital Management
19
Geode Capital Management
Massachusetts
$510K 205,879 +8,379 +4%
Janus Henderson Group
20
Janus Henderson Group
United Kingdom
$483K 194,597 -1,734,760 -90%
Ameriprise
21
Ameriprise
Minnesota
$479K 193,320 +18,815 +11%
JPMorgan Chase & Co
22
JPMorgan Chase & Co
New York
$368K 148,403 +144,833 +4,057%
WG
23
Winton Group
United Kingdom
$326K 131,278 +86,022 +190%
Two Sigma Advisers
24
Two Sigma Advisers
New York
$314K 126,700 +94,200 +290%
Connor, Clark & Lunn Investment Management (CC&L)
25
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$279K 112,446 +38,475 +52%
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