How many institutions held TUSK - MAMMOTH ENERGY SERVICES, INC. - Common Stock, $0.01 par value in Q3 2026?

7 institutional investors reported TUSK - MAMMOTH ENERGY SERVICES, INC. - Common Stock, $0.01 par value for Q3 2026. Use the holders table for investor-level position and value details.

MAMMOTH ENERGY SERVICES, INC. - Common Stock, $0.01 par value (TUSK)

Q: What does CUSIP 56155L108 represent in this 13F holders report?

CUSIP 56155L108 is the security identifier for TUSK - MAMMOTH ENERGY SERVICES, INC. - Common Stock, $0.01 par value used to aggregate holder disclosures.

CUSIP: 56155L108

Q3 2026 13F Holders as of 30 Sep 2026

Security type / class: Equity / Common Stock, $0.01 par value
Total 13F shares: 770,070
Total 13F value: $2,186,998
Share change: -236,039
SEC-reported price per share: $2.84
Number of holders: 7
Value change: -$746,216
Number of sells: 11
Shares outstanding: 48,179,010

Security key

56155L108

Report period

Q3 2026

Institutions

Top holders

TUSK full security history Ownership snapshot Full 13F holder table MAMMOTH ENERGY SERVICES, INC. SEC filings MAMMOTH ENERGY SERVICES, INC. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 56155L108

Recent filing periods:

Q3 2026

Ownership snapshot

Top reported holders of TUSK - MAMMOTH ENERGY SERVICES, INC. - Common Stock, $0.01 par value (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

WEXFORD CAPITAL LP

Disclosed value leader

GPOR Distribution Trust

Comparable rows

3/15

Latest evidence

30 Jun 2026

13F 13D/G 3/4/5 Lead comparable stake: 25% 12 rows are not safely comparable across share classes. 13D/G row: WEXFORD CAPITAL LP Showing 1-6 of 15 holder rows.

Quick read

WEXFORD CAPITAL LP leads the comparable SEC ownership view at 25%.

3 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens WEXFORD CAPITAL LP's linked filing trail.

Comparable ownership Top 3

WEXFORD CAPITAL LP 25%

Charles E. Davidson 13%

VALUEWORKS LLC 5%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
WEXFORD CAPITAL LP	13F 13D/G 3/4/5 Company · Chief Business Officer, Director, 10%+ Owner 13F 13D/G 3/4/5	25% Reported 13D/G · 17 Jun 2026	$39,233,425 12,071,823 shares	—	30 Jun 2026
Charles E. Davidson	3/4/5 13D/G Chief Business Officer, Director, 10%+ Owner 3/4/5 13D/G	13% Reported 13D/G · 17 Jun 2026	$31,214,753 12,071,823 shares	+$10,468,177	17 Jun 2026
VALUEWORKS LLC	13D/G 13D/G	5% Reported 13D/G · 30 Jun 2025	$6,689,287 2,389,031 shares	$0	30 Jun 2025
GPOR Distribution Trust	3/4/5 10%+ Owner 3/4/5	— denominator unverified	$42,797,852 9,829,548 shares	—	30 Jun 2021
Joseph Jacobs	3/4/5 Chief Business Officer, Director, 10%+ Owner 3/4/5	— denominator unverified	$31,214,753 12,071,823 shares	+$10,468,177	17 Jun 2026
Wexford GP LLC	3/4/5 Chief Business Officer, Director, 10%+ Owner 3/4/5	— denominator unverified	$31,214,753 12,071,823 shares	+$10,468,177	17 Jun 2026

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q3 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

770,070

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q3 2026 vs Q2 2026 Across Filers

Q2 2026 holders

Q3 2026 holders

Holder diff

-86

Investor	Q2 2026 Shares	Q3 2026 Shares	Share Diff	Share Chg %	Q2 2026 value	Q3 2026 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend