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 |
|---|---|---|---|---|---|
| EverSource Wealth Advisors, LLC | 4 | $8 | 0.00% | +4 | New |
| IFP Advisors, Inc | 0 | $10 | 0.00% | 0 | Unchanged |
| True Wealth Design, LLC | 7 | $15 | 0.00% | +7 | New |
| SBI Securities Co., Ltd. | 120 | $245 | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 134 | $273 | 0.00% | +81+152.8% | Added |
| Sterling Capital Management LLC | 437 | $891 | 0.00% | −388−47.0% | Reduced |
| CWM, LLC | 641 | $1.00K | 0.00% | +548+589.2% | Added |
| Amalgamated Bank | 785 | $2.00K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 1,761 | $3.59K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 1,924 | $3.92K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 2,179 | $4.45K | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 2,304 | $4.70K | 0.00% | +2,256+4,700.0% | Added |
| Royal Bank of Canada | 3,910 | $8.00K | 0.00% | −1,422−26.7% | Reduced |
| Union Bancaire Privee, UBP SA | 4,230 | $8.93K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 4,636 | $9.46K | 0.00% | +995+27.3% | Added |
| Group One Trading, L.P. | 5,789 | $11.8K | 0.00% | +5,789 | New |
| BNP Paribas Arbitrage, SA | 10,538 | $21.5K | 0.00% | +5,318+101.9% | Added |
| New York State Common Retirement Fund | 10,696 | $21.8K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 11,079 | $22.0K | 0.00% | +9,774+749.0% | Added |
| Wolverine Trading, LLC | 10,872 | $22.9K | 0.00% | +10,872 | New |
| Acadian Asset Management LLC | 11,711 | $23.0K | 0.00% | +11,711 | New |
| Jane Street Group, LLC | 11,647 | $23.8K | 0.00% | −3,903−25.1% | Reduced |
| Corebridge Financial, Inc. | 11,904 | $24.3K | 0.00% | −176−1.5% | Reduced |
| PDT Partners, LLC | 12,074 | $24.6K | 0.00% | −3,376−21.9% | Reduced |
| Archer Investment Corp | 12,200 | $24.9K | 0.01% | −200−1.6% | Reduced |
| Gsa Capital Partners LLP | 12,029 | $25.0K | 0.00% | +12,029 | New |
| FMR LLC | 13,434 | $27.4K | 0.00% | +4,144+44.6% | Added |
| Penbrook Management LLC | 14,000 | $28.6K | 0.02% | −8,200−36.9% | Reduced |
| Bank of America Corp | 14,177 | $28.9K | 0.00% | −8,705−38.0% | Reduced |
| Wells Fargo & Company | 14,584 | $29.8K | 0.00% | +321+2.3% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 14,594 | $29.8K | 0.00% | +624+4.5% | Added |
| Citigroup Inc | 17,319 | $35.3K | 0.00% | −20,852−54.6% | Reduced |
| Intech Investment Management LLC | 17,873 | $36.5K | 0.00% | +17,873 | New |
| JPMorgan Chase & Co | 22,470 | $45.8K | 0.00% | −40,609−64.4% | Reduced |
| NJ State Employees Deferred Compensation Plan | 24,000 | $49.0K | 0.01% | 00.0% | Unchanged |
| Rhumbline Advisers | 24,047 | $49.0K | 0.00% | −487−2.0% | Reduced |
| Price T Rowe Associates Inc | 26,473 | $55.0K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 30,221 | $61.7K | 0.00% | +2,333+8.4% | Added |
| Nuveen, LLC | 36,843 | $75.2K | 0.00% | +36,843 | New |
| Barclays PLC | 49,521 | $101.0K | 0.00% | −12,028−19.5% | Reduced |
| NBC Securities, Inc. | 56,940 | $116.0K | 0.01% | +56,884+101,578.6% | Added |
| Millennium Management LLC | 58,674 | $119.7K | 0.00% | +58,674 | New |
| Advisor Group Holdings, Inc. | 59,550 | $121.5K | 0.00% | 00.0% | Unchanged |
| Wellington Management Group LLP | 61,799 | $126.1K | 0.00% | +12,238+24.7% | Added |
| Goldman Sachs Group Inc | 66,588 | $135.8K | 0.00% | −22,854−25.6% | Reduced |
| Charles Schwab Investment Management Inc | 70,674 | $144.2K | 0.00% | 00.0% | Unchanged |
| Morgan Stanley | 91,234 | $186.1K | 0.00% | +255+0.3% | Added |
| Susquehanna International Group, LLP | 93,489 | $190.7K | 0.00% | +33,937+57.0% | Added |
| Stifel Financial Corp | 105,572 | $215.4K | 0.00% | −53−0.1% | Reduced |
| Bank of New York Mellon Corp | 121,249 | $247.3K | 0.00% | −744−0.6% | Reduced |
| Renaissance Technologies LLC | 135,272 | $276.0K | 0.00% | +1,700+1.3% | Added |
| Empowered Funds, LLC | 159,685 | $325.8K | 0.00% | +13,111+8.9% | Added |
| CastleKnight Management LP | 167,433 | $341.6K | 0.04% | 00.0% | Unchanged |
| Citadel Advisors LLC | 184,071 | $375.5K | 0.00% | +166,206+930.3% | Added |
| Northern Trust Corp | 203,027 | $414.2K | 0.00% | −3,012−1.5% | Reduced |
| Rangeley Capital, LLC | 205,880 | $420.0K | 0.48% | −226,458−52.4% | Reduced |
| Bridgeway Capital Management, LLC | 335,685 | $684.8K | 0.02% | −124,589−27.1% | Reduced |
| State Street Corp | 402,363 | $820.8K | 0.00% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 545,164 | $1.11M | 0.00% | +7,788+1.4% | Added |
| Vanguard Group Inc | 944,535 | $1.93M | 0.00% | −2,162−0.2% | Reduced |
| Dimensional Fund Advisors LP | 1,001,204 | $2.04M | 0.00% | +9,981+1.0% | Added |
| Royce & Associates LP | 1,293,637 | $2.64M | 0.03% | −156,285−10.8% | Reduced |
| BlackRock, Inc. | 1,460,797 | $2.98M | 0.00% | −15,088−1.0% | Reduced |
| Valueworks LLC | 2,808,860 | $5.73M | 2.16% | −14,325−0.5% | Reduced |
| Adage Capital Partners GP, L.L.C. | 4,150,000 | $8.47M | 0.02% | +50,000+1.2% | Added |
| Wexford Capital LP | 22,068,212 | $45.0M | 11.71% | 00.0% | Unchanged |
| 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 |