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Mammoth Energy Services
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Overview Fund Activity

47 hedge funds and large institutions have $34.9M invested in Mammoth Energy Services in 2020 Q2 according to their latest regulatory filings, with 13 funds opening new positions, 11 increasing their positions, 17 reducing their positions, and 26 closing their positions.

Holders
47
Holders Change
-13
Holders Change %
-21.67%
% of All Funds
0.97%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.02%
New
13
Increased
11
Reduced
17
Closed
26
Calls
$9K
Puts
–
Net Calls
+$9K
Net Calls Change
+$8K

Top Buyers

1
V
1
ValueWorks
New York
$4.28M
2
EI
2
EAM Investors
California
$348K
3
WG
3
Winton Group
United Kingdom
$345K
4
BCM
4
Bridgeway Capital Management
Texas
$556K
5
Squarepoint
5
Squarepoint
New York
$103K

Top Sellers

1
BlackRock
1
BlackRock
New York
$347K
2
Russell Investments Group
2
Russell Investments Group
United Kingdom
$0
3
Dimensional Fund Advisors
3
Dimensional Fund Advisors
Texas
$550K
4
Two Sigma Investments
4
Two Sigma Investments
New York
$32K
5
State Street
5
State Street
Massachusetts
$0
Name Market Value Shares Shares
Change 		Shares
Change %
WC
1
Wexford Capital
Florida
$26M 22,045,274 – –
V
2
ValueWorks
New York
$4.28M 3,627,530 +482,647 +15%
BCM
3
Bridgeway Capital Management
Texas
$556K 471,500 +120,100 +34%
Dimensional Fund Advisors
4
Dimensional Fund Advisors
Texas
$550K 466,316 -286,841 -38%
Vanguard Group
5
Vanguard Group
Pennsylvania
$482K 408,762 -72,361 -15%
EI
6
EAM Investors
California
$348K 295,107 +295,107 New
BlackRock
7
BlackRock
New York
$347K 294,331 -575,279 -66%
WG
8
Winton Group
United Kingdom
$345K 292,065 +192,021 +192%
Two Sigma Advisers
9
Two Sigma Advisers
New York
$335K 283,500 -25,600 -8%
Invesco
10
Invesco
Georgia
$275K 232,988 -30,293 -12%
D.E. Shaw & Co
11
D.E. Shaw & Co
New York
$202K 170,888 -50,464 -23%
Geode Capital Management
12
Geode Capital Management
Massachusetts
$149K 126,883 -89,104 -41%
Bank of New York Mellon
13
Bank of New York Mellon
New York
$107K 90,626 +6,244 +7%
Squarepoint
14
Squarepoint
New York
$103K 87,137 +87,137 New
Jane Street
15
Jane Street
New York
$83K 69,988 +69,988 New
TF
16
Trek Financial
Arizona
$77K 64,977 +64,977 New
Millennium Management
17
Millennium Management
New York
$67K 56,805 +56,805 New
Stifel Financial
18
Stifel Financial
Missouri
$66K 55,572 +8,537 +18%
Charles Schwab
19
Charles Schwab
California
$62K 52,180 -19,487 -27%
Northern Trust
20
Northern Trust
Illinois
$58K 48,574 -112,602 -70%
Susquehanna International Group
21
Susquehanna International Group
Pennsylvania
$40K 33,931 +33,931 New
NJBEST
22
New Jersey Better Educational Savings Trust
New Jersey
$37K 31,600 -10,000 -24%
PP
23
Paloma Partners
Connecticut
$36K 30,300 +30,300 New
Two Sigma Investments
24
Two Sigma Investments
New York
$32K 26,900 -160,890 -86%
First Trust Advisors
25
First Trust Advisors
Illinois
$31K 26,303 +1,898 +8%
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