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Mammoth Energy Services

72 hedge funds and large institutions have $63.6M invested in Mammoth Energy Services in 2025 Q4 according to their latest regulatory filings, with 9 funds opening new positions, 22 increasing their positions, 26 reducing their positions, and 13 closing their positions.

New
Increased
Maintained
Reduced
Closed

more funds holding in top 10

Funds holding in top 10:

less ownership

Funds ownership:

less funds holding

Funds holding:

less repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

23% less capital invested

Capital invested by funds: $82.6M → $63.6M (-$19M)

31% less first-time investments, than exits

New positions opened: 9 | Existing positions closed: 13

Holders
72
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
1
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1K
Puts
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
Invesco
51
Invesco
Georgia
$19.8K
New York State Common Retirement Fund
52
New York State Common Retirement Fund
New York
$19.8K
Susquehanna International Group
53
Susquehanna International Group
Pennsylvania
$19K
PFSRSONJ
54
Police & Firemen's Retirement System of New Jersey
New Jersey
$17.8K
TRCT
55
Tower Research Capital (TRC)
New York
$10.3K
PNC Financial Services Group
56
PNC Financial Services Group
Pennsylvania
$6.7K
Legal & General Group
57
Legal & General Group
United Kingdom
$4.03K
AIP
58
Ameritas Investment Partners
Nebraska
$3.56K
SCM
59
Sterling Capital Management
North Carolina
$3.1K
California State Teachers Retirement System (CalSTRS)
60
California State Teachers Retirement System (CalSTRS)
California
$2.75K
Royal Bank of Canada
61
Royal Bank of Canada
Ontario, Canada
$2K
Citigroup
62
Citigroup
New York
$1.02K
AB
63
Amalgamated Bank
New York
$1K
Optiver Holding
64
Optiver Holding
Netherlands
$607
WIM
65
Westside Investment Management
California
$346
SS
66
SBI Securities
Japan
$222
TFA
67
Transamerica Financial Advisors
Florida
$57
IA
68
IFP Advisors
Florida
$57
Northwestern Mutual Wealth Management
69
Northwestern Mutual Wealth Management
Wisconsin
$52
EWA
70
EverSource Wealth Advisors
Alabama
$15
TWD
71
True Wealth Design
Ohio
$8
CM
72
CastleKnight Management
New York
Deutsche Bank
73
Deutsche Bank
Germany
NS
74
NBC Securities
Alabama
NSEDCP
75
NJ State Employees Deferred Compensation Plan
New Jersey