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, Q3 2023
Institutional positions in Mammoth Energy Services, Inc. as of Sep 30, 2023. 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
- 75
- +4 vs. Q2 2023
- Shares held
- 39.6M
- +947.1K (+2.5%) vs. Q2 2023
- Total value
- $183.6M
- −$2.94M (−1.6%) vs. Q2 2023
- New holders
- 12
- 24 more added
- Sold out
- 8
- 23 more reduced
1 institution that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2023: 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, Q3 2023
Shares, value and share of portfolio for each institution holding Mammoth Energy Services, Inc.; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Wexford Capital LP | 22,566,238 | $104.7M | 23.77% | 00.0% | Unchanged |
| Adage Capital Partners GP, L.L.C. | 3,700,000 | $17.2M | 0.04% | +400,000+12.1% | Added |
| Valueworks LLC | 3,374,263 | $15.6M | 5.68% | −9,200−0.3% | Reduced |
| Kanen Wealth Management LLC | 1,690,570 | $7.84M | 6.04% | −76,504−4.3% | Reduced |
| BlackRock Inc. | 1,376,010 | $6.38M | 0.00% | +95,769+7.5% | Added |
| Royce & Associates LP | 1,280,151 | $5.94M | 0.06% | −11,043−0.9% | Reduced |
| Vanguard Group Inc | 672,956 | $3.12M | 0.00% | +19,709+3.0% | Added |
| Dimensional Fund Advisors LP | 490,708 | $2.28M | 0.00% | +174,726+55.3% | Added |
| Geode Capital Management, LLC | 468,427 | $2.17M | 0.00% | +43,886+10.3% | Added |
| Acadian Asset Management LLC | 437,601 | $2.03M | 0.01% | −62,556−12.5% | Reduced |
| State Street Corp | 414,606 | $1.92M | 0.00% | +1,400+0.3% | Added |
| Bridgeway Capital Management, LLC | 355,528 | $1.65M | 0.04% | +50,312+16.5% | Added |
| X-Square Capital, LLC | 215,092 | $1.04M | 0.70% | 00.0% | Unchanged |
| Northern Trust Corp | 198,164 | $919.5K | 0.00% | +11,592+6.2% | Added |
| CastleKnight Management LP | 187,433 | $869.7K | 0.15% | +187,433 | New |
| Invesco Ltd. | 161,621 | $749.9K | 0.00% | +66,720+70.3% | Added |
| Renaissance Technologies LLC | 152,572 | $708.0K | 0.00% | −36,400−19.3% | Reduced |
| Two Sigma Advisers, LP | 148,700 | $690.0K | 0.00% | −63,200−29.8% | Reduced |
| Russell Investments Group, Ltd. | 140,162 | $650.4K | 0.00% | −16,647−10.6% | Reduced |
| Bank of New York Mellon Corp | 131,158 | $608.6K | 0.00% | −1,743−1.3% | Reduced |
| Stifel Financial Corp | 107,072 | $496.8K | 0.00% | 00.0% | Unchanged |
| Connor, Clark & Lunn Investment Management Ltd. | 93,214 | $432.5K | 0.00% | −3,675−3.8% | Reduced |
| Gsa Capital Partners LLP | 88,948 | $413.0K | 0.04% | +52,097+141.4% | Added |
| Penbrook Management LLC | 80,900 | $375.4K | 0.28% | −400−0.5% | Reduced |
| Advisor Group Holdings, Inc. | 79,965 | $371.0K | 0.00% | +71,650+861.7% | Added |
| Charles Schwab Investment Management Inc | 63,981 | $296.9K | 0.00% | 00.0% | Unchanged |
| First Trust Advisors LP | 61,735 | $286.4K | 0.00% | +61,735 | New |
| NBC Securities, Inc. | 58,740 | $272.0K | 0.03% | +58,740 | New |
| Long Focus Capital Management, LLC | 57,681 | $267.6K | 0.04% | 00.0% | Unchanged |
| O'Shaughnessy Asset Management, LLC | 57,096 | $264.9K | 0.00% | +20,505+56.0% | Added |
| Susquehanna International Group, LLP | 48,121 | $223.3K | 0.00% | −2,280−4.5% | Reduced |
| Morgan Stanley | 36,418 | $169.0K | 0.00% | −6,296−14.7% | Reduced |
| Winton Group Ltd | 35,816 | $166.2K | 0.01% | +25,584+250.0% | Added |
| Boston Partners | 35,093 | $162.8K | 0.00% | −27,093−43.6% | Reduced |
| Nuveen Asset Management, LLC | 32,142 | $149.1K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 29,812 | $138.0K | 0.00% | +7,240+32.1% | Added |
| Barclays PLC | 29,174 | $135.4K | 0.00% | −500−1.7% | Reduced |
| Empowered Funds, LLC | 27,828 | $129.1K | 0.00% | +2,212+8.6% | Added |
| Full Sail Capital, LLC | 27,191 | $126.2K | 0.01% | 00.0% | Unchanged |
| Rhumbline Advisers | 25,957 | $120.4K | 0.00% | +1,217+4.9% | Added |
| NJ State Employees Deferred Compensation Plan | 24,000 | $111.4K | 0.02% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 22,752 | $106.0K | 0.00% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 21,916 | $101.7K | 0.00% | +2,188+11.1% | Added |
| Algert Global LLC | 19,010 | $88.2K | 0.00% | 00.0% | Unchanged |
| Bank of America Corp | 17,872 | $82.9K | 0.00% | −3,024−14.5% | Reduced |
| Cruiser Capital Advisors, LLC | 17,125 | $79.5K | 0.11% | 00.0% | Unchanged |
| Archer Investment Corp | 17,100 | $79.3K | 0.03% | +100+0.6% | Added |
| LPL Financial LLC | 15,732 | $73.0K | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 15,138 | $70.2K | 0.00% | −3,445−18.5% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 15,016 | $69.7K | 0.00% | 00.0% | Unchanged |
| Wolverine Trading, LLC | 13,449 | $62.4K | 0.00% | +13,449 | New |
| UBS Group AG | 12,760 | $59.2K | 0.00% | −1,146−8.2% | Reduced |
| Stokes Family Office, LLC | 12,390 | $57.5K | 0.01% | +12,390 | New |
| MetLife Investment Management | 12,318 | $57.2K | 0.00% | +12,318 | New |
| American International Group, Inc. | 11,627 | $53.9K | 0.00% | +413+3.7% | Added |
| Ritholtz Wealth Management | 11,150 | $51.7K | 0.00% | +214+2.0% | Added |
| New York State Common Retirement Fund | 10,680 | $49.6K | 0.00% | −10,220−48.9% | Reduced |
| SG Americas Securities, LLC | 10,036 | $47.0K | 0.00% | +10,036 | New |
| London & Capital Asset Management Ltd | 10,017 | $46.5K | 0.00% | +10,017 | New |
| Allspring Global Investments Holdings, LLC | 8,089 | $37.5K | 0.00% | +8,089 | New |
| Simplex Trading, LLC | 6,496 | $30.0K | 0.00% | +6,496 | New |
| FMR LLC | 6,244 | $29.0K | 0.00% | +14+0.2% | Added |
| Wells Fargo & Company | 5,758 | $26.7K | 0.00% | −3,088−34.9% | Reduced |
| California State Teachers Retirement System | 5,141 | $23.9K | 0.00% | −2,609−33.7% | Reduced |
| BNP Paribas Arbitrage, SA | 3,738 | $17.3K | 0.00% | −4,719−55.8% | Reduced |
| Amalgamated Bank | 2,266 | $11.0K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 2,279 | $10.6K | 0.00% | +1,295+131.6% | Added |
| Legal & General Group Plc | 2,179 | $10.1K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 1,924 | $8.93K | 0.00% | 00.0% | Unchanged |
| Metropolitan Life Insurance Co | 1,348 | $6.25K | 0.00% | +1,348 | New |
| National Bank of Canada | 710 | $3.13K | 0.00% | +110+18.3% | Added |
| Citadel Advisors LLC | 571 | $2.65K | 0.00% | −5,878−91.1% | Reduced |
| Barrow Hanley Mewhinney & Strauss LLC | 533 | $2.47K | 0.00% | +533 | New |
| Coppell Advisory Solutions LLC | 166 | $1.44K | 0.00% | +74+80.4% | Added |
| Citigroup Inc | 55 | $255 | 0.00% | −6,882−99.2% | Reduced |
| Caxton Associates LP | 0 | $0 | 0.00% | −51,785−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −36,242−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −25,100−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −10,403−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −1,300−100.0% | Sold out |
| Tucker Asset Management LLC | 0 | $0 | 0.00% | −600−100.0% | Sold out |
| GWM Advisors LLC | 0 | $0 | 0.00% | −430−100.0% | Sold out |
| NewSquare Capital LLC | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| EA Series Trust | – | – | – | – | Not filed |