Mammoth Energy Services, Inc.
TUSK· Nasdaq
TUSKMammoth Energy Services, Inc.
Who holds Mammoth Energy Services, Inc., from the managers’ Form 13F reports for the quarter ended Jun 30, 2026.
Form 13F covers managers with $100 million or more. Positions are as of the quarter end and filed up to 45 days later; the latest quarter fills in as reports land.
| Manager | Shares | Change | Value | Of portfolio | Filed |
|---|---|---|---|---|---|
| Wexford Capital LP | 12.1M | −45.3% | $39.2M | 5% | Aug 14, 2026 |
| Adage Capital Partners GP, L.L.C. | 4.6M | ±0% | $14.9M | 0.1% | Aug 14, 2026 |
| Vanguard Capital Management LLC | 1.1M | +29.4% | $3.4M | 0.1% | Aug 13, 2026 |
| Peapod Lane Capital LLC | 807.8K | +34.7% | $2.6M | 1.8% | Jul 27, 2026 |
| Dimensional Fund Advisors LP | 691.7K | +0.8% | $2.2M | 0.1% | Aug 11, 2026 |
| Jane Street Group, LLC | 506.7K | +2,117.0% | $1.6M | 0.1% | Aug 14, 2026 |
| Citadel Advisors LLC | 452.2K | +36.5% | $1.5M | 0.1% | Sep 2, 2026 |
| BlackRock, Inc. | 408K | −72.0% | $1.3M | 0% | Aug 7, 2026 |
| Marshall Wace, LLP | 395.6K | New | $1.3M | 0.1% | Aug 13, 2026 |
| Johns Hopkins University | 387.4K | New | $1.3M | 0.1% | Aug 14, 2026 |
| Bridgeway Capital Management, LLC | 332.3K | ±0% | $1.1M | 0.1% | Aug 14, 2026 |
| Russell Investments Group, Ltd. | 329.8K | +384.8% | $1.1M | 0.1% | Aug 6, 2026 |
| Geode Capital Management, LLC | 306K | −49.9% | $995.7K | 0.1% | Aug 12, 2026 |
| Renaissance Technologies LLC | 292.3K | +26.0% | $949.9K | 0.1% | Aug 13, 2026 |
| Arrowstreet Capital, Limited Partnership | 290.1K | New | $942.8K | 0.1% | Aug 13, 2026 |
| Empowered Funds, LLC | 241.3K | ±0% | $784.3K | 0.1% | Aug 17, 2026 |
| AQR Capital Management LLC | 177.8K | +166.5% | $577.9K | 0.1% | Aug 14, 2026 |
| Vanguard Fiduciary Trust Co | 161.8K | −4.9% | $525.8K | 0.1% | Aug 13, 2026 |
| Round Rock Advisors, LLC | 152.8K | New | $496.7K | 0.1% | Aug 12, 2026 |
| Morgan Stanley | 133.6K | −12.5% | $434.1K | 0% | Aug 13, 2026 |
| Centiva Capital, LP | 130.9K | +17.8% | $425.3K | 0.1% | Aug 13, 2026 |
| Millennium Management LLC | 124.2K | New | $403.6K | 0.1% | Aug 14, 2026 |
| Marquette Asset Management, LLC | 109.8K | New | $356.9K | 0.1% | Jul 9, 2026 |
| Stifel Financial Corp | 105.6K | ±0% | $343.1K | 0.1% | Aug 12, 2026 |
| State Street Corp | 101.9K | −75.9% | $331.1K | 0% | Sep 22, 2026 |
| Bank of America Corp | 97K | +279.2% | $315.4K | 0% | Aug 14, 2026 |
| BNP Paribas Financial Markets | 93K | +455.1% | $302.1K | 0.1% | Aug 13, 2026 |
| Point72 Asset Management, L.P. | 72.1K | New | $234.3K | 0.1% | Aug 14, 2026 |
| Boston Partners | 68.9K | −55.3% | $224K | 0.1% | Aug 4, 2026 |
| Aster Capital Management (DIFC) Ltd | 67.6K | New | $219.6K | 0.1% | Aug 14, 2026 |
| Bank of New York Mellon Corp | 62K | −53.2% | $201.5K | 0% | Aug 6, 2026 |
| Qube Research & Technologies Ltd | 58.9K | New | $191.3K | 0.1% | Aug 14, 2026 |
| Two Sigma Investments, LP | 58.5K | New | $190.2K | 0.1% | Aug 14, 2026 |
| Northern Trust Corp | 57.2K | −69.4% | $185.8K | 0% | Aug 13, 2026 |
| Goldman Sachs Group Inc | 54.9K | −75.4% | $178.5K | 0% | Aug 14, 2026 |
| Susquehanna International Group, LLP | 49.9K | +37.5% | $162.2K | 0% | Aug 14, 2026 |
| XTX Topco Ltd | 49.3K | New | $160.1K | 0.1% | Aug 14, 2026 |
| Walleye Capital LLC | 49.1K | New | $159.7K | 0.1% | Aug 3, 2026 |
| Wellington Management Group LLP | 47.5K | −30.6% | $154.3K | 0% | Aug 14, 2026 |
| Algert Global LLC | 46K | New | $149.5K | 0.1% | Aug 13, 2026 |
| Quadrature Capital Ltd | 44K | New | $143K | 0.1% | Aug 7, 2026 |
| HSBC Holdings PLC | 33.7K | New | $108K | 0% | Aug 14, 2026 |
| UBS Group AG | 29.5K | +285.0% | $95.9K | 0% | Aug 13, 2026 |
| Connor, Clark & Lunn Investment Management Ltd. | 28.6K | +97.0% | $92.9K | 0.1% | Aug 13, 2026 |
| Captrust Financial Advisors | 26.8K | New | $87.1K | 0.1% | Aug 13, 2026 |
| Barclays PLC | 25.6K | +357.9% | $83K | 0% | Aug 14, 2026 |
| IEQ Capital, LLC | 24.4K | New | $79.3K | 0.1% | Aug 11, 2026 |
| Pathstone Holdings, LLC | 22.3K | New | $72.6K | 0.1% | Aug 13, 2026 |
| Schonfeld Strategic Advisors LLC | 16.9K | −8.0% | $54.8K | 0.1% | Aug 14, 2026 |
| Rhumbline Advisers | 16.6K | −49.5% | $54K | 0% | Aug 12, 2026 |
| AXQ Capital, LP | 13.9K | New | $45.2K | 0.1% | Aug 6, 2026 |
| Tower Research Capital LLC (TRC) | 13.5K | +7.6% | $43.8K | 0.1% | Aug 11, 2026 |
| Creative Planning | 13.3K | −21.4% | $43.3K | 0% | Aug 13, 2026 |
| Mariner, LLC | 13.3K | −50.6% | $43.1K | 0% | Aug 13, 2026 |
| FMR LLC | 12.5K | +3.2% | $40.7K | 0% | Aug 13, 2026 |
| Steinberganna Wealth Management | 11.6K | −37.0% | $37.6K | 0.1% | Aug 4, 2026 |
| JPMorgan Chase & Co | 12.4K | +20.5% | $36K | 0% | Aug 12, 2026 |
| Prelude Capital Management, LLC | 10.8K | New | $35.1K | 0.1% | Aug 14, 2026 |
| Charles Schwab Investment Management Inc | 10.7K | −81.8% | $34.9K | 0% | Aug 14, 2026 |
| Vanguard Global Advisers, LLC | 8.8K | ±0% | $28.5K | 0% | Aug 13, 2026 |
| Archer Investment Corp | 8.2K | −26.8% | $26.7K | 0.1% | Aug 3, 2026 |
| PNC Financial Services Group, Inc. | 7.2K | +26.2% | $23.5K | 0% | Aug 7, 2026 |
| Royal Bank of Canada | 4.5K | +453,600.0% | $14K | 0% | Aug 14, 2026 |
| Simplex Trading, LLC | 3.5K | −37.6% | $11.2K | 0% | Aug 12, 2026 |
| UBS AM, a Distinct Business Unit of UBS Asset Management Americas LLC | 1.4K | ±0% | $4.6K | 0% | Aug 13, 2026 |
| Arax Advisory Partners | 843 | +4,858.8% | $2.7K | 0% | Aug 10, 2026 |
| Allworth Financial LP | 840 | +315.8% | $2.7K | 0% | Aug 11, 2026 |
| Allianz SE | 800 | ±0% | $2.6K | 0% | Aug 10, 2026 |
| Group One Trading LLC | 777 | New | $2.5K | 0% | Aug 14, 2026 |
| Wells Fargo & Company | 300 | −96.8% | $975 | 0% | Aug 14, 2026 |
| EverSource Wealth Advisors, LLC | 276 | +228.6% | $898 | 0% | Jul 24, 2026 |
| Rothschild Investment LLC | 239 | +79.7% | $777 | 0% | Aug 6, 2026 |
| Essential Partners LLC | 212 | +960.0% | $689 | 0.1% | Aug 10, 2026 |
| McGuire Capital Advisors Inc | 200 | New | $650 | 0.1% | Aug 14, 2026 |
| Westside Investment Management, Inc. | 187 | ±0% | $608 | 0.1% | Jul 27, 2026 |
| Osaic Holdings, Inc. | 150 | −99.8% | $487 | 0% | Aug 14, 2026 |
| GSA Capital Partners LLP | 129.5K | +831.4% | $421 | 0.1% | Aug 6, 2026 |
| Acadian Asset Management LLC | 122.1K | −40.2% | $396 | 0.1% | Aug 13, 2026 |
| Farther Finance Advisors, LLC | 107 | +664.3% | $343 | 0% | Jul 17, 2026 |
| Basecamp Wealth Advisors LLC | 79 | +38.6% | $257 | 0% | Aug 14, 2026 |
| FNY Investment Advisers, LLC | 76.5K | New | $248 | 0.1% | Jul 8, 2026 |
| True Wealth Design, LLC | 37 | +48.0% | $121 | 0% | Jul 16, 2026 |
| Transamerica Financial Advisors, LLC | 31 | ±0% | $100 | 0% | Aug 17, 2026 |
| HRT Financial LP | 30.6K | New | $99 | 0.1% | Aug 14, 2026 |
| SJS Investment Consulting Inc. | 30 | +76.5% | $98 | 0% | Jul 22, 2026 |
| IFP Advisors, Inc | 27 | +440.0% | $88 | 0% | Jul 20, 2026 |
| Wealth Enhancement Trust Services, Inc. | 17 | New | $55 | 0% | Jul 22, 2026 |
| Virtu Financial LLC | 12.8K | New | $42 | 0.1% | Aug 13, 2026 |
| Caitong International Asset Management Co., Ltd | 10 | +400.0% | $32 | 0% | Aug 5, 2026 |
| JPL Wealth Management, LLC | 9 | ±0% | $30 | 0% | Aug 14, 2026 |
| Fortitude Family Office, LLC | 7 | New | $23 | 0% | Jul 20, 2026 |
| Citigroup Inc | 1 | −99.9% | $3 | 0% | Aug 3, 2026 |
| SBI Securities Co., Ltd. | 1 | −99.0% | $3 | 0% | Jul 23, 2026 |
