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Mammoth Energy Services

45 hedge funds and large institutions have $128M invested in Mammoth Energy Services in 2020 Q4 according to their latest regulatory filings, with 15 funds opening new positions, 13 increasing their positions, 9 reducing their positions, and 7 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
45
Holders Change
+7
Holders Change %
+18.42%
% of All Funds
0.8%
Holding in Top 10
2
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.04%
New
15
Increased
13
Reduced
9
Closed
7
Calls
$58K
Puts
$56K
Net Calls
+$2K
Net Calls Change
-$7K
Name Holding Trade Value Shares
Change
Shares
Change %
WC
1
Wexford Capital
Florida
$98.2M +$93.4K +20,986 +0.1%
V
2
ValueWorks
New York
$15M -$426K -95,836 -3%
Vanguard Group
3
Vanguard Group
Pennsylvania
$2.27M +$1.28M +287,930 +130%
BCM
4
Bridgeway Capital Management
Texas
$2.1M
BlackRock
5
BlackRock
New York
$1.37M +$69.3K +15,570 +5%
Geode Capital Management
6
Geode Capital Management
Massachusetts
$1.27M +$711K +159,889 +127%
Millennium Management
7
Millennium Management
New York
$1.21M -$258K -58,008 -18%
Invesco
8
Invesco
Georgia
$1.01M +$4.56K +1,025 +0.5%
Dimensional Fund Advisors
9
Dimensional Fund Advisors
Texas
$916K -$322K -72,432 -26%
Two Sigma Advisers
10
Two Sigma Advisers
New York
$688K -$86.4K -19,400 -11%
Bank of New York Mellon
11
Bank of New York Mellon
New York
$497K +$93.6K +21,029 +23%
Renaissance Technologies
12
Renaissance Technologies
New York
$440K +$201K +45,105 +84%
Northern Trust
13
Northern Trust
Illinois
$374K +$62.5K +14,052 +20%
WG
14
Winton Group
United Kingdom
$306K -$560K -125,654 -65%
6CM
15
683 Capital Management
New York
$290K +$290K +65,166 New
Goldman Sachs
16
Goldman Sachs
New York
$280K -$178K -39,953 -39%
TF
17
Trek Financial
Arizona
$269K +$24.8K +5,577 +10%
Stifel Financial
18
Stifel Financial
Missouri
$247K
Cambridge Investment Research Advisors
19
Cambridge Investment Research Advisors
Iowa
$243K +$2.71K +608 +1%
Two Sigma Investments
20
Two Sigma Investments
New York
$223K +$223K +50,215 New
Susquehanna International Group
21
Susquehanna International Group
Pennsylvania
$177K +$177K +39,677 New
OGC
22
One68 Global Capital
New York
$147K +$147K +33,142 New
BFM
23
Boothbay Fund Management
New York
$140K +$140K +31,390 New
Capstone Investment Advisors
24
Capstone Investment Advisors
New York
$122K +$122K +27,452 New
NSEDCP
25
NJ State Employees Deferred Compensation Plan
New Jersey
$107K