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Mammoth Energy Services
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Overview Fund Activity

52 hedge funds and large institutions have $134M invested in Mammoth Energy Services in 2021 Q2 according to their latest regulatory filings, with 7 funds opening new positions, 19 increasing their positions, 13 reducing their positions, and 9 closing their positions.

Holders
52
Holders Change
-2
Holders Change %
-3.7%
% of All Funds
0.91%
Holding in Top 10
2
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.03%
New
7
Increased
19
Reduced
13
Closed
9
Calls
$31K
Puts
$65K
Net Calls
-$34K
Net Calls Change
-$561K

Top Buyers

1
V
1
ValueWorks
New York
$16.1M
2
Vanguard Group
2
Vanguard Group
Pennsylvania
$3.92M
3
Renaissance Technologies
3
Renaissance Technologies
New York
$1.02M
4
RA
4
Royce & Associates
New York
$303K
5
Morgan Stanley
5
Morgan Stanley
New York
$290K

Top Sellers

1
Millennium Management
1
Millennium Management
New York
$387K
2
Susquehanna International Group
2
Susquehanna International Group
Pennsylvania
$60K
3
BlackRock
3
BlackRock
New York
$925K
4
Citadel Advisors
4
Citadel Advisors
Florida
$0
5
Goldman Sachs
5
Goldman Sachs
New York
$0
Name Market Value Shares Shares
Change 		Shares
Change %
WC
1
Wexford Capital
Florida
$101M 22,066,259 – –
V
2
ValueWorks
New York
$16.1M 3,512,871 +245,135 +8%
Vanguard Group
3
Vanguard Group
Pennsylvania
$3.92M 853,341 +215,841 +34%
BCM
4
Bridgeway Capital Management
Texas
$2.19M 476,500 +22,700 +5%
Geode Capital Management
5
Geode Capital Management
Massachusetts
$1.42M 310,369 +3,391 +1%
Renaissance Technologies
6
Renaissance Technologies
New York
$1.02M 222,524 +88,452 +66%
BlackRock
7
BlackRock
New York
$925K 201,515 -84,662 -30%
Dimensional Fund Advisors
8
Dimensional Fund Advisors
Texas
$904K 197,030 -8,756 -4%
Two Sigma Advisers
9
Two Sigma Advisers
New York
$648K 141,200 -23,300 -14%
Acadian Asset Management
10
Acadian Asset Management
Massachusetts
$470K 102,360 +33,514 +49%
Bank of New York Mellon
11
Bank of New York Mellon
New York
$419K 91,232 -12,153 -12%
Squarepoint
12
Squarepoint
New York
$394K 85,800 +583 +0.7%
Millennium Management
13
Millennium Management
New York
$387K 84,336 -148,783 -64%
Northern Trust
14
Northern Trust
Illinois
$354K 76,993 -6,591 -8%
RA
15
Royce & Associates
New York
$303K 65,976 +65,976 New
Morgan Stanley
16
Morgan Stanley
New York
$290K 63,068 +62,991 +81,806%
WG
17
Winton Group
United Kingdom
$277K 60,321 -2,582 -4%
Stifel Financial
18
Stifel Financial
Missouri
$255K 55,572 – –
Cambridge Investment Research Advisors
19
Cambridge Investment Research Advisors
Iowa
$253K 55,029 – –
State Street
20
State Street
Massachusetts
$241K 52,407 +41,507 +381%
Boston Partners
21
Boston Partners
Massachusetts
$219K 47,725 +47,725 New
Two Sigma Investments
22
Two Sigma Investments
New York
$210K 45,720 -13,458 -23%
Russell Investments Group
23
Russell Investments Group
United Kingdom
$184K 40,255 +40,255 New
T. Rowe Price Associates
24
T. Rowe Price Associates
Maryland
$183K 39,800 -4,470 -10%
Invesco
25
Invesco
Georgia
$173K 37,703 -315 -0.8%
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