Companies / Mammoth Energy Services, Inc.

Mammoth Energy Services, Inc.

Nasdaq: TUSKCIK 1679268OKLAHOMA CITY, OK

Financials · FY2025

Revenue$44.29M
Net income$4.60M
Total debt$0
Cash$50.87M
Diluted EPS$0.10
Shares outstanding48.1M

Ownership

48.1M shares outstanding · as of Aug 4, 2026
38.7%Insiders
Ownership
Insiders38.73%18,638,849
Institutions23.50%11,311,148
Public float37.77%18,177,588

% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.

Insiders 7

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Insider% of sharesShares
Wexford Capital LPChief Business Officer · Director · 10% owner
25.08%12,071,823
Charles E. DavidsonChief Business Officer · Director · 10% owner
13.44%6,470,441
Amron Arthur HDirector
0.20%96,585
Amron Holdings LLCDirector
——
CD Holding Company, LLC10% owner
——
Jacobs JosephChief Business Officer · Director · 10% owner
——
Wexford GP LLCChief Business Officer · Director · 10% owner
——

Institutional holders 79

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HolderValue% of shares
Wexford Capital LP$54.07M45.85%
Adage Capital Partners Gp, L.L.C.$11.21M9.51%
Vanguard Group Inc$1.89M2.12%
Geode Capital Management, LLC$1.50M1.27%
BlackRock, Inc.$1.33M0.85%
Dimensional Fund Advisors LP$1.29M1.45%
Bridgeway Capital Management, LLC$814.2K0.69%
Renaissance Technologies LLC$568.3K0.48%
Morgan Stanley$541.5K0.61%
Russell Investments Group, Ltd.$457.9K0.51%

Activity

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InsidersInstitutions
What insiders are doing in this stock (Form 4).
DateActorActionSecurityValueShares ΔPosition afterImpact
Jun 17, 2026Wexford Capital LP
Executive
BuyCommon Stock$10.47M+4.0M
+60.89%
10,620,789
22.07% of shares
high
May 28, 2026Amron Arthur H
Director
BuyCommon Stock$9.8K+3K
+5.03%
62,635
0.13% of shares
low
May 26, 2026Amron Arthur H
Director
BuyCommon Stock$8.1K+3K
+4.38%
59,635
0.12% of shares
low
Jun 11, 2026Amron Arthur H
Director
BuyCommon Stock$8.0K+3K
+3.99%
65,135
0.14% of shares
low
Jun 12, 2026Amron Arthur H
Director
BuyCommon Stock$6.6K+2K
+3.07%
67,135
0.14% of shares
low
Jun 17, 2026Amron Arthur H
Director
OtherCommon Stock$0+10K
10,329
0.02% of shares
low
Jun 17, 2026Amron Arthur H
Director
OtherCommon Stock$0+19K
+28.48%
86,256
0.18% of shares
low
Jun 17, 2026Wexford Capital LP
Executive
OtherCommon Stock$0+6.4M
+2577.46%
6,601,215
13.72% of shares
low

5%+ ownership events

Schedule 13D / 13G
FilerStance% of classSharesDate
Charles E. DavidsonPassive13G———
Wexford Capital LPPassive13G/A———

Securities

via CUSIP / OpenFIGI
SymbolTypeMarketCUSIPFIGI
TUSK——56155L108—