Mammoth Energy Services, Inc.
TUSK- Exchange
- Nasdaq
- Industry
- Oil & Gas Field Services, NEC
- SEC CIK
- 0001679268
In the last 90 days, Mammoth Energy Services, Inc. insiders filed 1 open-market purchase and 0 sales; 93 institutions reported holding it in 13F filings for Q2 2026, worth $84.7M in total; no superinvestor holds it.
13F holders, Q1 2025
Institutional positions in Mammoth Energy Services, Inc. as of Mar 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 66
- 0 vs. Q4 2024
- Shares held
- 37.3M
- −195.6K (−0.5%) vs. Q4 2024
- Total value
- $76.1M
- −$36.4M (−32.4%) vs. Q4 2024
- New holders
- 9
- 20 more added
- Sold out
- 9
- 22 more reduced
1 institution that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting TUSK on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 93 | $84.7M |
| Q1 2026 | 90 | $86.0M |
| Q4 2025 | 72 | $63.6M |
| Q3 2025 | 77 | $82.6M |
| Q2 2025 | 66 | $101.9M |
| Q1 2025 | 66 | $76.1M |
| Q4 2024 | 67 | $112.6M |
| Q3 2024 | 64 | $151.9M |
| Q2 2024 | 67 | $127.0M |
| Q1 2024 | 67 | $141.9M |
| Q4 2023 | 67 | $175.4M |
| Q3 2023 | 75 | $183.6M |
| Q2 2023 | 72 | $186.7M |
| Q1 2023 | 77 | $161.9M |
| Q4 2022 | 80 | $323.2M |
| Q3 2022 | 58 | $126.1M |
| Q2 2022 | 49 | $27.8M |
| Q1 2022 | 50 | $21.5M |
| Q4 2021 | 44 | $14.5M |
| Q3 2021 | 46 | $22.1M |
| Q2 2021 | 52 | $134.0M |
| Q1 2021 | 54 | $153.3M |
Institutions, Q1 2025
Shares, value and share of portfolio for each institution holding Mammoth Energy Services, Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Wexford Capital LP | 22,068,212 | $45.0M | 11.71% | 00.0% | Unchanged |
| Adage Capital Partners GP, L.L.C. | 4,150,000 | $8.47M | 0.02% | +50,000+1.2% | Added |
| Valueworks LLC | 2,808,860 | $5.73M | 2.16% | −14,325−0.5% | Reduced |
| BlackRock, Inc. | 1,460,797 | $2.98M | 0.00% | −15,088−1.0% | Reduced |
| Royce & Associates LP | 1,293,637 | $2.64M | 0.03% | −156,285−10.8% | Reduced |
| Dimensional Fund Advisors LP | 1,001,204 | $2.04M | 0.00% | +9,981+1.0% | Added |
| Vanguard Group Inc | 944,535 | $1.93M | 0.00% | −2,162−0.2% | Reduced |
| Geode Capital Management, LLC | 545,164 | $1.11M | 0.00% | +7,788+1.4% | Added |
| State Street Corp | 402,363 | $820.8K | 0.00% | 00.0% | Unchanged |
| Bridgeway Capital Management, LLC | 335,685 | $684.8K | 0.02% | −124,589−27.1% | Reduced |
| Rangeley Capital, LLC | 205,880 | $420.0K | 0.48% | −226,458−52.4% | Reduced |
| Northern Trust Corp | 203,027 | $414.2K | 0.00% | −3,012−1.5% | Reduced |
| Citadel Advisors LLC | 184,071 | $375.5K | 0.00% | +166,206+930.3% | Added |
| CastleKnight Management LP | 167,433 | $341.6K | 0.04% | 00.0% | Unchanged |
| Empowered Funds, LLC | 159,685 | $325.8K | 0.00% | +13,111+8.9% | Added |
| Renaissance Technologies LLC | 135,272 | $276.0K | 0.00% | +1,700+1.3% | Added |
| Bank of New York Mellon Corp | 121,249 | $247.3K | 0.00% | −744−0.6% | Reduced |
| Stifel Financial Corp | 105,572 | $215.4K | 0.00% | −53−0.1% | Reduced |
| Susquehanna International Group, LLP | 93,489 | $190.7K | 0.00% | +33,937+57.0% | Added |
| Morgan Stanley | 91,234 | $186.1K | 0.00% | +255+0.3% | Added |
| Charles Schwab Investment Management Inc | 70,674 | $144.2K | 0.00% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 66,588 | $135.8K | 0.00% | −22,854−25.6% | Reduced |
| Wellington Management Group LLP | 61,799 | $126.1K | 0.00% | +12,238+24.7% | Added |
| Advisor Group Holdings, Inc. | 59,550 | $121.5K | 0.00% | 00.0% | Unchanged |
| Millennium Management LLC | 58,674 | $119.7K | 0.00% | +58,674 | New |
| NBC Securities, Inc. | 56,940 | $116.0K | 0.01% | +56,884+101,578.6% | Added |
| Barclays PLC | 49,521 | $101.0K | 0.00% | −12,028−19.5% | Reduced |
| Nuveen, LLC | 36,843 | $75.2K | 0.00% | +36,843 | New |
| UBS Group AG | 30,221 | $61.7K | 0.00% | +2,333+8.4% | Added |
| Price T Rowe Associates Inc | 26,473 | $55.0K | 0.00% | 00.0% | Unchanged |
| Rhumbline Advisers | 24,047 | $49.0K | 0.00% | −487−2.0% | Reduced |
| NJ State Employees Deferred Compensation Plan | 24,000 | $49.0K | 0.01% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 22,470 | $45.8K | 0.00% | −40,609−64.4% | Reduced |
| Intech Investment Management LLC | 17,873 | $36.5K | 0.00% | +17,873 | New |
| Citigroup Inc | 17,319 | $35.3K | 0.00% | −20,852−54.6% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 14,594 | $29.8K | 0.00% | +624+4.5% | Added |
| Wells Fargo & Company | 14,584 | $29.8K | 0.00% | +321+2.3% | Added |
| Bank of America Corp | 14,177 | $28.9K | 0.00% | −8,705−38.0% | Reduced |
| Penbrook Management LLC | 14,000 | $28.6K | 0.02% | −8,200−36.9% | Reduced |
| FMR LLC | 13,434 | $27.4K | 0.00% | +4,144+44.6% | Added |
| Gsa Capital Partners LLP | 12,029 | $25.0K | 0.00% | +12,029 | New |
| Archer Investment Corp | 12,200 | $24.9K | 0.01% | −200−1.6% | Reduced |
| PDT Partners, LLC | 12,074 | $24.6K | 0.00% | −3,376−21.9% | Reduced |
| Corebridge Financial, Inc. | 11,904 | $24.3K | 0.00% | −176−1.5% | Reduced |
| Jane Street Group, LLC | 11,647 | $23.8K | 0.00% | −3,903−25.1% | Reduced |
| Acadian Asset Management LLC | 11,711 | $23.0K | 0.00% | +11,711 | New |
| Wolverine Trading, LLC | 10,872 | $22.9K | 0.00% | +10,872 | New |
| Simplex Trading, LLC | 11,079 | $22.0K | 0.00% | +9,774+749.0% | Added |
| New York State Common Retirement Fund | 10,696 | $21.8K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 10,538 | $21.5K | 0.00% | +5,318+101.9% | Added |
| Group One Trading, L.P. | 5,789 | $11.8K | 0.00% | +5,789 | New |
| Tower Research Capital LLC (TRC) | 4,636 | $9.46K | 0.00% | +995+27.3% | Added |
| Union Bancaire Privee, UBP SA | 4,230 | $8.93K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 3,910 | $8.00K | 0.00% | −1,422−26.7% | Reduced |
| The PNC Financial Services Group, Inc. | 2,304 | $4.70K | 0.00% | +2,256+4,700.0% | Added |
| Legal & General Group Plc | 2,179 | $4.45K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 1,924 | $3.92K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 1,761 | $3.59K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 785 | $2.00K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 641 | $1.00K | 0.00% | +548+589.2% | Added |
| Sterling Capital Management LLC | 437 | $891 | 0.00% | −388−47.0% | Reduced |
| Nisa Investment Advisors, LLC | 134 | $273 | 0.00% | +81+152.8% | Added |
| SBI Securities Co., Ltd. | 120 | $245 | 0.00% | 00.0% | Unchanged |
| True Wealth Design, LLC | 7 | $15 | 0.00% | +7 | New |
| IFP Advisors, Inc | 0 | $10 | 0.00% | 0 | Unchanged |
| EverSource Wealth Advisors, LLC | 4 | $8 | 0.00% | +4 | New |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −14,163−100.0% | Sold out |
| Occudo Quantitative Strategies LP | 0 | $0 | 0.00% | −13,749−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −12,584−100.0% | Sold out |
| Invesco Ltd. | 0 | $0 | 0.00% | −10,122−100.0% | Sold out |
| LPL Financial LLC | 0 | $0 | 0.00% | −10,057−100.0% | Sold out |
| US Bancorp | 0 | $0 | 0.00% | −833−100.0% | Sold out |
| Russell Investments Group, Ltd. | 0 | $0 | 0.00% | −341−100.0% | Sold out |
| National Bank of Canada | 0 | $0 | 0.00% | −110−100.0% | Sold out |
| Coppell Advisory Solutions LLC | 0 | $0 | 0.00% | −70−100.0% | Sold out |
| Nuveen Asset Management, LLC | – | – | – | – | Not filed |