How many institutions held TUSK - MAMMOTH ENERGY SERVICES, INC. - Common Stock, $0.01 par value in Q4 2021?

42 institutional investors reported TUSK - MAMMOTH ENERGY SERVICES, INC. - Common Stock, $0.01 par value for Q4 2021. 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

Q4 2021 13F Holders as of 31 Dec 2021

Security type / class: Equity / Common Stock, $0.01 par value
Total 13F shares: 7,984,109
Total 13F value: $14,532,122
Share change: +259,841
SEC-reported price per share: $1.82
Number of holders: 42
Value change: +$305,369
Number of buys: 11
Number of sells: 23
Shares outstanding: 48,179,010

Security key

56155L108

Report period

Q4 2021

Institutions

Top holders

TUSK full security history Ownership snapshot Full 13F holder table Newer quarter: Q3 2026 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

Newer quarter: Q3 2026

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

GPOR Distribution Trust

Disclosed value leader

GPOR Distribution Trust

Comparable rows

0/15

Latest evidence

30 Sep 2021

3/4/5 13F Highest disclosed value: $42,797,852 15 rows are not safely comparable across share classes. Showing 1-6 of 15 holder rows.

Quick read

GPOR Distribution Trust has the largest disclosed position value at $42.8M.

0 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 GPOR Distribution Trust's linked filing trail.

Disclosed position value Top 5

GPOR Distribution Trust $42.8M

VALUEWORKS LLC $10.42M

ROYCE & ASSOCIATES LP $2.41M

VANGUARD GROUP INC $1.48M

BRIDGEWAY CAPITAL MANAGEMENT, LLC $1.46M

Value bars compare disclosed positions; verify each figure against the linked filing evidence.

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

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
GPOR Distribution Trust	3/4/5 10%+ Owner 3/4/5	— denominator unverified	$42,797,852 9,829,548 shares	—	30 Jun 2021
VALUEWORKS LLC	13F Company 13F	— denominator unverified	$10,417,000 3,579,579 shares	—	30 Sep 2021
ROYCE & ASSOCIATES LP	13F Company 13F	— denominator unverified	$2,409,000 827,790 shares	—	30 Sep 2021
VANGUARD GROUP INC	13F Company 13F	— denominator unverified	$1,479,000 508,130 shares	—	30 Sep 2021
BRIDGEWAY CAPITAL MANAGEMENT, LLC	13F Company 13F	— denominator unverified	$1,458,000 501,016 shares	—	30 Sep 2021
GEODE CAPITAL MANAGEMENT, LLC	13F Company 13F	— denominator unverified	$880,000 302,684 shares	—	30 Sep 2021

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 Q4 2021

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

Institutions

7,984,109

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 Q4 2021 vs Q3 2021 Across Filers

Q3 2021 holders

Q4 2021 holders

Holder diff

-1

Investor	Q3 2021 Shares	Q4 2021 Shares	Share Diff	Share Chg %	Q3 2021 value	Q4 2021 value	Value change	Value Chg %

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

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend