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Disclosery

TUSK MAMMOTH ENERGY SVCS INC

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COM (common), issuer CIK 1679268

67 managers (67 13F filers) reported a position in TUSK shares at 2025-06-30, 36,401,865 shares in all. 5 filers opened a position and 6 filers sold out during the quarter.

Managers
67
13F filers
67
New
5
Added
30
Reduced
18
Sold out
6
Shares held by filers
36,401,865

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, Q2 2025

Filers in the available 13F reports with a share position at 2025-06-30, 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$61.9M17.26%+27,85613F-HRTimeline
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…4,575,000$12.8M0.02%+425,00013F-HRTimelineGroup
VALUEWORKS LLC2,389,031$6.7M2.21%-419,82913F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.1,469,099$4.11M<0.01%+8,30213F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP993,914$2.78M<0.01%-7,29013F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC957,241$2.68M<0.01%+12,70613F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC580,659$1.63M<0.01%+35,49513F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP408,763$1.14M<0.01%+6,40013F-HRTimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC350,454$981K0.02%+14,76913F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP193,842$543K<0.01%-9,18513F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO185,761$520K<0.01%+163,29113F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY185,260$519K<0.01%+94,02613F-HRTimelineGroup
Empowered Funds, LLC174,454$488K0.01%+14,76913F-HRTimeline
CastleKnight Management LP167,433$469K0.03%013F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC146,482$410K<0.01%-37,58913F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC132,172$370K<0.01%-3,10013F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp132,145$370K<0.01%+10,89613F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…122,552$343K<0.01%+29,06313F-HRTimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…115,212$323K<0.01%+53,41313F-HRTimelineGroup
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP105,869$296K<0.01%+29713F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA87,289$244K<0.01%+83,37913F-HR/ATimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co70,674$198K<0.01%013F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC66,548$186K<0.01%+17,02713F-HR/ATimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP57,436$161K<0.01%new13F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC53,601$150K<0.01%-12,98713F-HRTimelineGroup
LANARK FINANCIAL, INC.44,580$124K0.01%-12,36013F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/43,285$122K<0.01%+16,81213F-HRTimeline
ROYCE & ASSOCIATES LP41,154$115K<0.01%-1,252,48313F-HRTimeline
Nuveen, LLCin group TIAA36,843$103K<0.01%013F-HRTimelineGroup
UBS Group AGin group UBS Group AG36,671$103K<0.01%+6,45013F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd36,662$103K<0.01%new13F-HRTimelineGroup
RHUMBLINE ADVISERS31,804$89K<0.01%+7,75713F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.29,433$82.4K<0.01%-30,11713F-HR/ATimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC28,563$79K<0.01%+16,85213F-HRTimelineGroup
NJ State Employees Deferred Compensatio…24,000$67.2K0.01%013F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC21,851$61.2K<0.01%-36,82313F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC17,268$48.4K<0.01%+5,62113F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN15,568$43.6K<0.01%+98413F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…13,970$39.1K<0.01%-62413F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS13,525$37.9K<0.01%+2,98713F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/13,069$36.6K<0.01%-1,10813F-HRTimelineGroup
Penbrook Management LLC13,000$36.4K0.03%-1,00013F-HR/ATimeline
Archer Investment Corp12,200$34.2K0.01%013F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…12,121$33.9K<0.01%new13F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC12,080$33.8K<0.01%-5,79313F-HRTimeline
FMR LLCin group FMR LLC10,914$30.6K<0.01%-2,52013F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND10,696$29.9K<0.01%013F-HR/ATimeline
ALLIANCEBERNSTEIN L.P.10,190$28.5K<0.01%new13F-HRTimeline
Police & Firemen's Retirement System of…9,637$27K<0.01%new13F-HRTimeline
CITIGROUP INCin group CITIGROUP INC9,458$26.5K<0.01%-7,86113F-HRTimelineGroup
GROUP ONE TRADING LLC8,164$22.9K<0.01%+2,37513F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…7,569$21.2K<0.01%+2,93313F-HRTimelineGroup
Union Bancaire Privee, UBP SA4,230$12.2K<0.01%013F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…4,087$11.4K<0.01%+1,78313F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc2,179$6.1K<0.01%013F-HRTimelineGroup
SIMPLEX TRADING, LLC2,419$6K<0.01%-8,66013F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…1,924$5.39K<0.01%013F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC1,817$5.09K<0.01%+1,68313F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…1,761$4.93K<0.01%013F-HRTimeline
AMALGAMATED BANK785$2K<0.01%013F-HRTimeline
CWM, LLCin group CWM, LLC637$2K<0.01%-413F-HRTimelineGroup
Sterling Capital Management LLC651$1.82K<0.01%+21413F-HR/ATimeline
SBI Securities Co., Ltd.122$342<0.01%+213F-HRTimeline
True Wealth Design, LLC12$34<0.01%+513F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…4$11<0.01%013F-HRTimelineGroup
Essential Partners LLC3$8<0.01%13F-HRTimeline
CONCOURSE FINANCIAL GROUP SECURITIES, I…0$0013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.