Mammoth Energy Services, Inc. (NASDAQ:TUSK) has 71 institutional investors with active 13F positions as of December 2025.
| Owner Name | Date | Shares Held | Change (QoQ) | Change (%) | Value (USD) |
|---|---|---|---|---|---|
| WEXFORD CAPITAL LP | 31 Mar, 2026 | 22,068,212 | -27,856 | -0.13% | $54,067,120.00 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 31 Mar, 2026 | 4,575,000 | 0 | 0.00% | $11,208,750.00 |
| BlackRock, Inc. | 31 Mar, 2026 | 1,454,839 | -18,205 | -1.24% | $3,564,356.00 |
| VANGUARD CAPITAL MANAGEMENT LLC | 31 Mar, 2026 | 819,120 | 819,120 | 0.00% | $2,006,844.00 |
| DIMENSIONAL FUND ADVISORS LP | 31 Mar, 2026 | 686,199 | -13,479 | -1.93% | $1,681,522.00 |
| GEODE CAPITAL MANAGEMENT, LLC | 31 Mar, 2026 | 610,926 | 25,207 | 4.30% | $1,496,928.00 |
| Peapod Lane Capital LLC | 31 Mar, 2026 | 599,805 | 599,805 | 0.00% | $1,513,348.00 |
| State Street Corp | 31 Mar, 2026 | 421,922 | 13,438 | 3.29% | $1,033,709.00 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 31 Mar, 2026 | 332,313 | -77,678 | -18.95% | $814,167.00 |
| CITADEL ADVISORS LLC | 31 Mar, 2026 | 331,367 | 111,256 | 50.55% | $811,849.00 |
| Empowered Funds, LLC | 31 Mar, 2026 | 241,313 | -196,669 | -44.90% | $591,217.00 |
| RENAISSANCE TECHNOLOGIES LLC | 31 Mar, 2026 | 231,972 | 45,900 | 24.67% | $568,331.00 |
| Goldman Sachs Group Inc | 31 Mar, 2026 | 223,489 | 43,601 | 24.24% | $547,549.00 |
| ACADIAN ASSET MANAGEMENT LLC | 31 Mar, 2026 | 204,105 | 97,213 | 90.95% | $498.00 |
| Northern Trust Corp | 31 Mar, 2026 | 187,128 | 19,283 | 11.49% | $458,464.00 |
| VANGUARD FIDUCIARY TRUST CO | 31 Mar, 2026 | 170,131 | 170,131 | 0.00% | $416,821.00 |
| LOS ANGELES CAPITAL MANAGEMENT LLC | 31 Mar, 2026 | 163,259 | 163,259 | 0.00% | $399,984.00 |
| Boston Partners | 31 Mar, 2026 | 154,388 | 154,388 | 0.00% | $378,250.00 |
| Morgan Stanley | 31 Mar, 2026 | 152,723 | -139,975 | -47.82% | $374,172.00 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 31 Mar, 2026 | 140,145 | 140,145 | 0.00% | $343,355.00 |