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Disclosery

TUSK MAMMOTH ENERGY SVCS INC

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COM (common), issuer CIK 1679268

77 managers (77 13F filers) reported a position in TUSK shares at 2025-09-30, 36,061,620 shares in all. 15 filers opened a position and 5 filers sold out during the quarter.

Managers
77
13F filers
77
New
15
Added
17
Reduced
30
Sold out
5
Shares held by filers
36,061,620

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
WEXFORD CAPITAL LP22,096,068$50.6M15.24%013F-HRTimeline
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…4,575,000$10.5M0.02%013F-HRTimelineGroup
VALUEWORKS LLC2,038,205$4.67M1.36%-350,82613F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.1,452,463$3.33M<0.01%-16,63613F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC945,630$2.17M<0.01%-11,61113F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP936,414$2.14M<0.01%-57,50013F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC579,105$1.33M<0.01%-1,55413F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP406,916$932K<0.01%-1,84713F-HRTimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC389,964$893K0.02%+39,51013F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC268,315$614K<0.01%+121,83313F-HRTimelineGroup
Empowered Funds, LLC198,964$456K<0.01%+24,51013F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP192,469$441K<0.01%-1,37313F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO182,781$419K<0.01%-2,98013F-HR/ATimelineGroup
CastleKnight Management LP167,433$383K0.02%013F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY145,300$333K<0.01%-39,96013F-HR/ATimelineGroup
RENAISSANCE TECHNOLOGIES LLC133,972$307K<0.01%+1,80013F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp133,755$306K<0.01%+1,61013F-HRTimelineGroup
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP105,869$242K<0.01%013F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA84,135$193K<0.01%-3,15413F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…72,878$167K<0.01%-49,67413F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\72,183$165K<0.01%new13F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co70,674$162K<0.01%013F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC59,269$136K<0.01%-7,27913F-HR/ATimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…56,398$129K<0.01%-58,81413F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC52,081$119K<0.01%-1,52013F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC51,803$119K<0.01%+34,53513F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP44,517$102K<0.01%-12,91913F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC40,242$90K<0.01%+11,67913F-HRTimelineGroup
Nuveen, LLCin group TIAA36,843$84.4K<0.01%013F-HRTimelineGroup
LANARK FINANCIAL, INC.36,200$82.9K0.01%-8,38013F-HRTimeline
RHUMBLINE ADVISERS34,781$79.6K<0.01%+2,97713F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.31,103$73.7K<0.01%+1,67013F-HRTimelineGroup
NewEdge Advisors, LLC25,494$58.4K<0.01%new13F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd25,082$57.4K<0.01%-11,58013F-HRTimelineGroup
STEINBERGANNA WEALTH MANAGEMENT24,265$55.6K0.03%13F-HRTimeline
NJ State Employees Deferred Compensatio…24,000$55K0.01%013F-HRTimeline
UBS Group AGin group UBS Group AG20,468$46.9K<0.01%-16,20313F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN18,903$43.3K<0.01%+3,33513F-HRTimelineGroup
ROYCE & ASSOCIATES LP17,954$41.1K<0.01%-23,20013F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources15,791$36.2K<0.01%new13F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS15,470$35.4K<0.01%+1,94513F-HRTimelineGroup
HRT FINANCIAL LP15,076$34K<0.01%new13F-HRTimeline
Virtu Financial LLCin group Virtu Financial LLC14,148$32K<0.01%new13F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/13,385$31K<0.01%-29,90013F-HRTimeline
FMR LLCin group FMR LLC12,646$29K<0.01%+1,73213F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC12,175$27.9K<0.01%+9513F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…11,946$27.4K<0.01%-2,02413F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/11,831$27.1K<0.01%-1,23813F-HR/ATimelineGroup
ALLIANCEBERNSTEIN L.P.11,390$26.1K<0.01%+1,20013F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC11,299$25.9K<0.01%new13F-HRTimelineGroup
Archer Investment Corp11,200$25.6K0.01%-1,00013F-HRTimeline
Invesco Ltd.in group Invesco Ltd.10,733$24.6K<0.01%new13F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND10,696$24.5K<0.01%013F-HRTimeline
Police & Firemen's Retirement System of…9,637$22.1K<0.01%013F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…4,870$11.2K<0.01%-2,69913F-HRTimelineGroup
Union Bancaire Privee, UBP SA4,230$10.3K<0.01%013F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…3,745$8.57K<0.01%-34213F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc2,179$4.99K<0.01%013F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…2,091$4.79K<0.01%new13F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…1,924$4.41K<0.01%013F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…1,762$4.04K<0.01%+113F-HRTimeline
Sterling Capital Management LLC1,674$3.83K<0.01%+1,02313F-HRTimeline
AMALGAMATED BANK785$2K<0.01%013F-HRTimeline
CITIGROUP INCin group CITIGROUP INC727$1.67K<0.01%-8,73113F-HRTimelineGroup
Advisory Services Network, LLC500$1.15K<0.01%new13F-HRTimeline
CWM, LLCin group CWM, LLC653$1K<0.01%+1613F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC431$987<0.01%-1,38613F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.328$751<0.01%new13F-HRTimelineGroup
Transamerica Financial Advisors, LLCin group Transamerica Financial Adviso…156$357<0.01%new13F-HRTimelineGroup
SBI Securities Co., Ltd.120$275<0.01%-213F-HRTimeline
Arax Advisory Partners70$160<0.01%new13F-HRTimeline
IFP Advisors, Inc30$69<0.01%new13F-HR/ATimeline
Clearstead Advisors, LLC11$26<0.01%new13F-HRTimeline
True Wealth Design, LLC8$19<0.01%-413F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…4$9<0.01%013F-HRTimelineGroup
Essential Partners LLC2$5<0.01%-113F-HRTimeline
Allworth Financial LP1$3<0.01%new13F-HRTimeline