TUSK icon

Mammoth Energy Services
TUSK

Overview Fund Activity

64 hedge funds and large institutions have $102M invested in Mammoth Energy Services in 2025 Q2 according to their latest regulatory filings, with 5 funds opening new positions, 30 increasing their positions, 16 reducing their positions, and 5 closing their positions.

Holders
64
Holders Change
-1
Holders Change %
-1.54%
% of All Funds
0.86%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
5
Increased
30
Reduced
16
Closed
5
Calls
$45K
Puts
$151K
Net Calls
-$106K
Net Calls Change
-$67K

Top Buyers

1
Adage Capital Partners
1
Adage Capital Partners
Massachusetts
$12.8M
2
JPMorgan Chase & Co
2
JPMorgan Chase & Co
New York
$520K
3
Morgan Stanley
3
Morgan Stanley
New York
$519K
4
Royal Bank of Canada
4
Royal Bank of Canada
Ontario, Canada
$244K
5
Marshall Wace
5
Marshall Wace
United Kingdom
$161K

Top Sellers

1
RA
1
Royce & Associates
New York
$115K
2
V
2
ValueWorks
New York
$6.7M
3
RC
3
Rangeley Capital
Connecticut
$0
4
Citadel Advisors
4
Citadel Advisors
Florida
$410K
5
Millennium Management
5
Millennium Management
New York
$61.2K
Name Market Value Shares Shares
Change 		Shares
Change %
NS
26
NBC Securities
Alabama
$124K 44,580 -12,360 -22%
T. Rowe Price Associates
27
T. Rowe Price Associates
Maryland
$122K 43,285 +16,812 +64%
RA
28
Royce & Associates
New York
$115K 41,154 -1,252,483 -97%
NL
29
Nuveen LLC
North Carolina
$103K 36,843 – –
UBS Group
30
UBS Group
Switzerland
$103K 36,671 +6,450 +21%
XT
31
XTX Topco
Cayman Islands
$103K 36,662 +36,662 New
RhumbLine Advisers
32
RhumbLine Advisers
Massachusetts
$89K 31,804 +7,757 +32%
Acadian Asset Management
33
Acadian Asset Management
Massachusetts
$79K 28,563 +16,852 +144%
NSEDCP
34
NJ State Employees Deferred Compensation Plan
New Jersey
$67.2K 24,000 – –
PM
35
Penbrook Management
New York
$65K 27,000 +13,000 +93%
Millennium Management
36
Millennium Management
New York
$61.2K 21,851 -36,823 -63%
Jane Street
37
Jane Street
New York
$48.4K 17,268 +5,621 +48%
Wells Fargo
38
Wells Fargo
California
$43.6K 15,568 +984 +7%
Mirae Asset Global ETFs Holdings
39
Mirae Asset Global ETFs Holdings
Hong Kong
$39.1K 13,970 -624 -4%
BNP Paribas Financial Markets
40
BNP Paribas Financial Markets
France
$37.9K 13,525 +2,987 +28%
Bank of America
41
Bank of America
North Carolina
$36.6K 13,069 -1,108 -8%
AIC
42
Archer Investment Corporation
Indiana
$34.2K 12,200 – –
Wealth Enhancement Advisory Services
43
Wealth Enhancement Advisory Services
Minnesota
$33.9K 12,121 +12,121 New
IIM
44
INTECH Investment Management
Florida
$33.8K 12,080 -5,793 -32%
Fidelity Investments
45
Fidelity Investments
Massachusetts
$30.6K 10,914 -2,520 -19%
New York State Common Retirement Fund
46
New York State Common Retirement Fund
New York
$30K 10,696 – –
AllianceBernstein
47
AllianceBernstein
Tennessee
$28.5K 10,190 +10,190 New
PFSRSONJ
48
Police & Firemen's Retirement System of New Jersey
New Jersey
$27K 9,637 +9,637 New
Citigroup
49
Citigroup
New York
$26.5K 9,458 -7,861 -45%
Group One Trading
50
Group One Trading
Illinois
$22.9K 8,164 +2,375 +41%
1
2
3