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Disclosery

TUSK MAMMOTH ENERGY SVCS INC

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COM (common), issuer CIK 1679268

72 managers (72 13F filers) reported a position in TUSK shares at 2025-12-31, 34,368,514 shares in all. 9 filers opened a position and 14 filers sold out during the quarter.

Managers
72
13F filers
72
New
9
Added
22
Reduced
26
Sold out
14
Shares held by filers
34,368,514

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, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, 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$40.9M10.51%013F-HRTimeline
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…4,575,000$8.46M0.01%013F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.1,473,044$2.73M<0.01%+20,58113F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC1,022,411$1.89M<0.01%+76,78113F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP699,678$1.29M<0.01%-236,73613F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC585,719$1.08M<0.01%+6,61413F-HRTimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC409,991$758K0.02%+20,02713F-HRTimeline
STATE STREET CORPin group STATE STREET CORP408,484$756K<0.01%+1,56813F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY292,698$541K<0.01%+147,39813F-HR/ATimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…247,491$458K<0.01%+245,40013F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC220,111$407K<0.01%-48,20413F-HRTimelineGroup
Empowered Funds, LLC218,991$405K0.01%+20,02713F-HR/ATimeline
RENAISSANCE TECHNOLOGIES LLC186,072$344K<0.01%+52,10013F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP167,845$311K<0.01%-24,62413F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO165,984$307K<0.01%-16,79713F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp132,674$245K<0.01%-1,08113F-HRTimelineGroup
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP105,572$195K<0.01%-29713F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC106,892$195K<0.01%+66,65013F-HRTimelineGroup
Corient Private Wealth LPin group Corient Private Wealth LP97,902$181K<0.01%new13F-HR/ATimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC89,944$166K<0.01%+37,86313F-HR/ATimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.79,686$147K<0.01%+48,58313F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC76,164$141K<0.01%new13F-HRTimelineGroup
LANDSCAPE CAPITAL MANAGEMENT, L.L.C.in group LANDSCAPE CAPITAL MANAGEMENT,…72,619$134K0.01%new13F-HRTimelineGroup
FRANKLIN RESOURCES INCin group Franklin Resources72,088$133K<0.01%+56,29713F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co70,674$131K<0.01%013F-HRTimelineGroup
Quadrature Capital Ltdin group Quadrature Capital Ltd65,875$122K<0.01%new13F-HRTimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…56,398$104K<0.01%013F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd45,235$83.7K<0.01%+20,15313F-HRTimelineGroup
Centiva Capital, LP41,317$76.4K<0.01%new13F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC39,652$73.4K<0.01%-12,15113F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC38,064$70.4K<0.01%-21,20513F-HRTimelineGroup
Nuveen, LLCin group TIAA36,843$68.2K<0.01%013F-HRTimelineGroup
RHUMBLINE ADVISERS32,643$60.4K<0.01%-2,13813F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP30,801$57K<0.01%-13,71613F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN27,501$50.9K<0.01%+8,59813F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/22,072$40.8K<0.01%+10,24113F-HRTimelineGroup
NewEdge Advisors, LLC20,498$37.9K<0.01%-4,99613F-HRTimeline
Virtu Financial LLCin group Virtu Financial LLC17,973$33K<0.01%+3,82513F-HRTimelineGroup
UBS Group AGin group UBS Group AG17,614$32.6K<0.01%-2,85413F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS17,014$31.5K<0.01%+1,54413F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.14,925$27.6K<0.01%new13F-HRTimelineGroup
STEINBERGANNA WEALTH MANAGEMENT13,615$25.2K0.01%-10,65013F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/13,385$25K<0.01%013F-HRTimeline
VALUEWORKS LLC12,775$23.6K0.01%-2,025,43013F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…12,298$22.8K<0.01%+35213F-HRTimelineGroup
Creative Planningin group Creative Planning12,106$22.4K<0.01%new13F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.11,390$21.1K<0.01%013F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC11,255$20.8K<0.01%-4413F-HRTimelineGroup
Archer Investment Corp11,200$20.7K<0.01%013F-HRTimeline
FMR LLCin group FMR LLC11,106$20.5K<0.01%-1,54013F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.10,710$19.8K<0.01%-2313F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND10,696$19.8K<0.01%013F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…10,264$19K<0.01%-62,61413F-HRTimelineGroup
Police & Firemen's Retirement System of…9,637$17.8K<0.01%013F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…5,551$10.3K<0.01%+68113F-HRTimelineGroup
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…3,622$6.7K<0.01%-12313F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc2,179$4.03K<0.01%013F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…1,924$3.56K<0.01%013F-HRTimelineGroup
Sterling Capital Management LLC1,674$3.1K<0.01%013F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…1,487$2.75K<0.01%-27513F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA1,100$2K<0.01%-83,03513F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC549$1.02K<0.01%-17813F-HRTimelineGroup
AMALGAMATED BANK762$1K<0.01%-2313F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.328$607<0.01%013F-HRTimelineGroup
Westside Investment Management, Inc.187$346<0.01%new13F-HRTimeline
SBI Securities Co., Ltd.120$222<0.01%013F-HRTimeline
Transamerica Financial Advisors, LLCin group Transamerica Financial Adviso…31$57<0.01%-12513F-HRTimelineGroup
IFP Advisors, Inc31$57<0.01%+113F-HRTimeline
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…28$52<0.01%new13F-HR/ATimelineGroup
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…8$15<0.01%+413F-HRTimelineGroup
True Wealth Design, LLC4$8<0.01%-413F-HRTimeline
CWM, LLCin group CWM, LLC265$00%-38813F-HRTimelineGroupValue filed as zero, left out of ratios.