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, Q4 2024
Institutional positions in Mammoth Energy Services, Inc. as of Dec 31, 2024. 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
- 67
- +3 vs. Q3 2024
- Shares held
- 37.5M
- +415.1K (+1.1%) vs. Q3 2024
- Total value
- $112.6M
- −$39.2M (−25.8%) vs. Q3 2024
- New holders
- 10
- 26 more added
- Sold out
- 7
- 16 more reduced
Compare with Q3 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, Q4 2024
Shares, value and share of portfolio for each institution holding Mammoth Energy Services, Inc.; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Wexford Capital LP | 22,068,212 | $66.2M | 16.93% | 00.0% | Unchanged |
| Adage Capital Partners GP, L.L.C. | 4,100,000 | $12.3M | 0.02% | +46,277+1.1% | Added |
| Valueworks LLC | 2,823,185 | $8.47M | 2.82% | −313,186−10.0% | Reduced |
| BlackRock, Inc. | 1,475,885 | $4.43M | 0.00% | +11,773+0.8% | Added |
| Royce & Associates LP | 1,449,922 | $4.35M | 0.04% | +98,698+7.3% | Added |
| Dimensional Fund Advisors LP | 991,223 | $2.97M | 0.00% | +98,295+11.0% | Added |
| Vanguard Group Inc | 946,697 | $2.84M | 0.00% | +2,353+0.2% | Added |
| Geode Capital Management, LLC | 537,376 | $1.61M | 0.00% | +8,526+1.6% | Added |
| Bridgeway Capital Management, LLC | 460,274 | $1.38M | 0.03% | +57,017+14.1% | Added |
| Rangeley Capital, LLC | 432,338 | $1.30M | 1.25% | +432,338 | New |
| State Street Corp | 402,363 | $1.21M | 0.00% | −1,325−0.3% | Reduced |
| Northern Trust Corp | 206,039 | $618.1K | 0.00% | +4,175+2.1% | Added |
| CastleKnight Management LP | 167,433 | $502.3K | 0.06% | 00.0% | Unchanged |
| Empowered Funds, LLC | 146,574 | $439.7K | 0.01% | +63,417+76.3% | Added |
| Renaissance Technologies LLC | 133,572 | $400.7K | 0.00% | −100−0.1% | Reduced |
| Bank of New York Mellon Corp | 121,993 | $366.0K | 0.00% | −27,191−18.2% | Reduced |
| Stifel Financial Corp | 105,625 | $316.9K | 0.00% | +53+0.1% | Added |
| Morgan Stanley | 90,979 | $272.9K | 0.00% | +2,163+2.4% | Added |
| Goldman Sachs Group Inc | 89,442 | $268.3K | 0.00% | +29,988+50.4% | Added |
| Charles Schwab Investment Management Inc | 70,674 | $212.0K | 0.00% | +7,064+11.1% | Added |
| JPMorgan Chase & Co | 63,079 | $189.2K | 0.00% | +51,919+465.2% | Added |
| Barclays PLC | 61,549 | $184.6K | 0.00% | +4,468+7.8% | Added |
| Susquehanna International Group, LLP | 59,552 | $178.7K | 0.00% | −20,084−25.2% | Reduced |
| Advisor Group Holdings, Inc. | 59,550 | $178.7K | 0.00% | +4,700+8.6% | Added |
| Wellington Management Group LLP | 49,561 | $148.7K | 0.00% | +1,490+3.1% | Added |
| Citigroup Inc | 38,171 | $114.5K | 0.00% | +17,946+88.7% | Added |
| Nuveen Asset Management, LLC | 36,843 | $110.5K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 27,888 | $83.7K | 0.00% | +3,396+13.9% | Added |
| Price T Rowe Associates Inc | 26,473 | $80.0K | 0.00% | 00.0% | Unchanged |
| Rhumbline Advisers | 24,534 | $73.6K | 0.00% | −562−2.2% | Reduced |
| NJ State Employees Deferred Compensation Plan | 24,000 | $72.0K | 0.01% | 00.0% | Unchanged |
| Bank of America Corp | 22,882 | $68.6K | 0.00% | +7,192+45.8% | Added |
| Penbrook Management LLC | 22,200 | $66.6K | 0.05% | −10,500−32.1% | Reduced |
| Citadel Advisors LLC | 17,865 | $53.6K | 0.00% | −47,425−72.6% | Reduced |
| Jane Street Group, LLC | 15,550 | $46.6K | 0.00% | −2,994−16.1% | Reduced |
| PDT Partners, LLC | 15,450 | $46.4K | 0.00% | +15,450 | New |
| Wells Fargo & Company | 14,263 | $42.8K | 0.00% | +3,107+27.9% | Added |
| Marshall Wace, LLP | 14,163 | $42.5K | 0.00% | +14,163 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 13,970 | $41.9K | 0.00% | +608+4.6% | Added |
| Occudo Quantitative Strategies LP | 13,749 | $41.2K | 0.01% | +13,749 | New |
| SG Americas Securities, LLC | 12,584 | $38.0K | 0.00% | +2,239+21.6% | Added |
| Archer Investment Corp | 12,400 | $37.2K | 0.01% | 00.0% | Unchanged |
| Corebridge Financial, Inc. | 12,080 | $36.2K | 0.00% | −913−7.0% | Reduced |
| New York State Common Retirement Fund | 10,696 | $32.1K | 0.00% | 00.0% | Unchanged |
| Invesco Ltd. | 10,122 | $30.4K | 0.00% | +10,122 | New |
| LPL Financial LLC | 10,057 | $30.2K | 0.00% | −5,500−35.4% | Reduced |
| FMR LLC | 9,290 | $27.9K | 0.00% | −1,677−15.3% | Reduced |
| Royal Bank of Canada | 5,332 | $16.0K | 0.00% | +1,848+53.0% | Added |
| BNP Paribas Arbitrage, SA | 5,220 | $15.7K | 0.00% | −1,284−19.7% | Reduced |
| Union Bancaire Privee, UBP SA | 4,230 | $11.8K | 0.00% | +4,230 | New |
| Tower Research Capital LLC (TRC) | 3,641 | $10.9K | 0.00% | +1,700+87.6% | Added |
| Legal & General Group Plc | 2,179 | $6.54K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 1,924 | $5.77K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 1,761 | $5.28K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 1,305 | $3.00K | 0.00% | +1,305 | New |
| US Bancorp | 833 | $2.50K | 0.00% | 00.0% | Unchanged |
| Sterling Capital Management LLC | 825 | $2.48K | 0.00% | +748+971.4% | Added |
| Amalgamated Bank | 785 | $2.00K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 341 | $1.02K | 0.00% | −673−66.4% | Reduced |
| SBI Securities Co., Ltd. | 120 | $360 | 0.00% | +120 | New |
| National Bank of Canada | 110 | $330 | 0.00% | 00.0% | Unchanged |
| Coppell Advisory Solutions LLC | 70 | $195 | 0.00% | 00.0% | Unchanged |
| NBC Securities, Inc. | 56 | $170 | 0.02% | −58,684−99.9% | Reduced |
| Nisa Investment Advisors, LLC | 53 | $159 | 0.00% | +53 | New |
| The PNC Financial Services Group, Inc. | 48 | $144 | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 0 | $15 | 0.00% | 0 | New |
| CWM, LLC | 93 | $0 | 0.00% | −272−74.5% | Reduced |
| Long Focus Capital Management, LLC | 0 | $0 | 0.00% | −57,681−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −26,449−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −12,990−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −12,964−100.0% | Sold out |
| Perkins Coie Trust Co | 0 | $0 | 0.00% | −5,000−100.0% | Sold out |
| Farther Finance Advisors, LLC | 0 | $0 | 0.00% | −103−100.0% | Sold out |
| Capital Performance Advisors LLP | 0 | $0 | 0.00% | −13−100.0% | Sold out |