MAMMOTH ENERGY SVCS INC (TUSK) is held by 58 institutional investors that disclose positions via SEC 13F filings. The largest disclosed holder is ADAGE CAPITAL PARTNERS GP, L.L.C. as of Q1 2026.

Are institutions buying or selling TUSK?

In Q1 2026, 34 institutions opened or increased positions in MAMMOTH ENERGY SVCS INC while 28 reduced or exited — a net buying quarter.

What is the Smart Money Verdict on TUSK?

The Smart Money Verdict combines four independent sources (institutional 13F activity, insider trades, activist filings, and congressional trades) into a single assessment for MAMMOTH ENERGY SVCS INC.

How many hedge funds hold TUSK?

58 institutional investors report holding MAMMOTH ENERGY SVCS INC (TUSK) as of Q1 2026, based on SEC 13F filings.

Is institutional money flowing into TUSK?

As of Q1 2026, tracked institutions in MAMMOTH ENERGY SVCS INC show 34 buyers versus 28 sellers — net inflows.

MAMMOTH ENERGY SVCS INC

TUSK·56155L108·US·Common Stock·Industrials - Conglomerates-13D/G

Holders

Avg rating(14 Elite)

$28.7M

Total Value

55% (69)

Fund Consensus

34 buying - 28 selling

Smart Money Verdict

View all

Held by 58 funds

14 elite

Who's Trading

ActivistCECharles E. Davidson13.4%Jun 22, 2026

ActivistWEWexford Capital LP25.1%Jun 22, 2026

InsiderAHAmron Arthur HBuy $7KJun 12, 2026

InsiderAHAmron Arthur HBuy $8KJun 11, 2026

InsiderAHAmron Arthur HBuy $19KDec 11, 2025

ActivistVAVALUEWORKS LIMITED PARTNERS, LP3.9%Aug 14, 2025

InsiderSLSMITH ARTHUR LSell $50KMay 22, 2025

InsiderSLSMITH ARTHUR LSell $125KMay 20, 2025

InsiderSLSMITH ARTHUR LSell $37KMay 19, 2025

View all insider trades View all activist filings

13F: Mar 31, 2026Insider & Congress: Updated regularly

Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
AGADAGE CAPITAL PARTNERS GP, L.L.C.	Unchanged	4.6M	$11.2M	0.0%	-6.96%	0
BlackRock, Inc.	Decreased	1.5M(-1.2%)	$3.6M	0.0%	+1.18%	0
VAVANGUARD CAPITAL MANAGEMENT LLC	New	819,120	$2M	0.0%	+13.82%	36
DIMENSIONAL FUND ADVISORS LP	Decreased	686,199(-1.9%)	$1.7M	0.0%	-30.43%	0
GEODE CAPITAL MANAGEMENT, LLC	Increased	610,926(+4.3%)	$1.5M	0.0%	-49.65%	27
STATE STREET CORP	Increased	421,922(+3.3%)	$1M	0.0%	-35.68%	18
CITADEL ADVISORS LLC	Increased	331,367(+50.5%)	$811,849	0.0%	+17.73%	34
Empowered Funds, LLC	Increased	241,313(+10.2%)	$591,217	0.0%	-11.19%	27
RENAISSANCE TECHNOLOGIES LLC	Increased	231,972(+24.7%)	$568,331	0.0%	+2.48%	30
GOLDMAN SACHS GROUP INC	Increased	223,489(+148.5%)	$547,549	0.0%	+15.33%	39
NORTHERN TRUST CORP	Increased	187,128(+11.5%)	$458,464	0.0%	-44.58%	27
VFVANGUARD FIDUCIARY TRUST CO	New	170,131	$416,821	0.0%	+13.82%	33
LOS ANGELES CAPITAL MANAGEMENT LLC	New	163,259	$399,984	0.0%	+13.82%	33
Boston Partners	New	154,388	$378,250	0.0%	+13.82%	33
MORGAN STANLEY	Decreased	152,723(-47.8%)	$374,172	0.0%	+10.59%	0
VPVANGUARD PORTFOLIO MANAGEMENT LLC	New	140,145	$343,355	0.0%	+13.82%	36
Bank of New York Mellon Corp	Decreased	132,539(-0.1%)	$324,720	0.0%	-34.63%	0
Centiva Capital, LP	Increased	111,108(+168.9%)	$272,215	0.0%	+25.80%	38
STIFEL FINANCIAL CORP	Unchanged	105,572	$258,651	0.0%	+96.88%	0
OSAIC HOLDINGS, INC.	Decreased	72,419(-9.1%)	$177,395	0.0%	-3.53%	0