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 2023
Institutional positions in Mammoth Energy Services, Inc. as of Dec 31, 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
- 67
- −8 vs. Q3 2023
- Shares held
- 39.3M
- −252.6K (−0.6%) vs. Q3 2023
- Total value
- $175.4M
- −$8.26M (−4.5%) vs. Q3 2023
- New holders
- 5
- 29 more added
- Sold out
- 13
- 19 more reduced
Compare with Q3 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, Q4 2023
Shares, value and share of portfolio for each institution holding Mammoth Energy Services, Inc.; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Wexford Capital LP | 22,030,871 | $98.3M | 21.09% | −535,367−2.4% | Reduced |
| Adage Capital Partners GP, L.L.C. | 4,275,000 | $19.1M | 0.04% | +575,000+15.5% | Added |
| Valueworks LLC | 3,349,718 | $14.9M | 5.07% | −24,545−0.7% | Reduced |
| Kanen Wealth Management LLC | 1,690,570 | $7.54M | 5.28% | 00.0% | Unchanged |
| BlackRock Inc. | 1,496,945 | $6.68M | 0.00% | +120,935+8.8% | Added |
| Royce & Associates LP | 1,284,451 | $5.73M | 0.05% | +4,300+0.3% | Added |
| Vanguard Group Inc | 706,403 | $3.15M | 0.00% | +33,447+5.0% | Added |
| Dimensional Fund Advisors LP | 644,986 | $2.88M | 0.00% | +154,278+31.4% | Added |
| Geode Capital Management, LLC | 483,751 | $2.16M | 0.00% | +15,324+3.3% | Added |
| State Street Corp | 405,066 | $1.81M | 0.00% | −9,540−2.3% | Reduced |
| Bridgeway Capital Management, LLC | 363,098 | $1.62M | 0.03% | +7,570+2.1% | Added |
| Acadian Asset Management LLC | 243,982 | $1.09M | 0.00% | −193,619−44.2% | Reduced |
| X-Square Capital, LLC | 215,092 | $959.0K | 0.53% | 00.0% | Unchanged |
| Northern Trust Corp | 194,978 | $869.6K | 0.00% | −3,186−1.6% | Reduced |
| CastleKnight Management LP | 167,433 | $746.8K | 0.12% | −20,000−10.7% | Reduced |
| Bank of New York Mellon Corp | 159,937 | $713.3K | 0.00% | +28,779+21.9% | Added |
| Renaissance Technologies LLC | 142,972 | $638.0K | 0.00% | −9,600−6.3% | Reduced |
| Stifel Financial Corp | 107,072 | $477.5K | 0.00% | 00.0% | Unchanged |
| Invesco Ltd. | 98,651 | $440.0K | 0.00% | −62,970−39.0% | Reduced |
| Two Sigma Advisers, LP | 87,300 | $389.4K | 0.00% | −61,400−41.3% | Reduced |
| Advisor Group Holdings, Inc. | 79,965 | $356.6K | 0.00% | 00.0% | Unchanged |
| Penbrook Management LLC | 76,900 | $343.0K | 0.23% | −4,000−4.9% | Reduced |
| Empowered Funds, LLC | 67,998 | $303.3K | 0.01% | +40,170+144.4% | Added |
| Charles Schwab Investment Management Inc | 63,981 | $285.4K | 0.00% | 00.0% | Unchanged |
| First Trust Advisors LP | 63,238 | $282.0K | 0.00% | +1,503+2.4% | Added |
| NBC Securities, Inc. | 58,740 | $261.0K | 0.03% | 00.0% | Unchanged |
| Barclays PLC | 57,727 | $257.5K | 0.00% | +28,553+97.9% | Added |
| Long Focus Capital Management, LLC | 57,681 | $257.3K | 0.03% | 00.0% | Unchanged |
| Morgan Stanley | 55,169 | $246.1K | 0.00% | +18,751+51.5% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 54,147 | $241.5K | 0.00% | −39,067−41.9% | Reduced |
| Nuveen Asset Management, LLC | 36,843 | $164.3K | 0.00% | +4,701+14.6% | Added |
| Winton Group Ltd | 36,829 | $164.3K | 0.01% | +1,013+2.8% | Added |
| Simplex Trading, LLC | 35,792 | $159.0K | 0.00% | +29,296+451.0% | Added |
| Royal Bank of Canada | 33,427 | $149.0K | 0.00% | +3,615+12.1% | Added |
| O'Shaughnessy Asset Management, LLC | 28,236 | $125.9K | 0.00% | −28,860−50.5% | Reduced |
| Full Sail Capital, LLC | 27,191 | $121.3K | 0.01% | 00.0% | Unchanged |
| Rhumbline Advisers | 26,175 | $116.7K | 0.00% | +218+0.8% | Added |
| UBS Group AG | 25,505 | $113.8K | 0.00% | +12,745+99.9% | Added |
| Bank of America Corp | 25,358 | $113.1K | 0.00% | +7,486+41.9% | Added |
| Jane Street Group, LLC | 24,918 | $111.1K | 0.00% | +24,918 | New |
| NJ State Employees Deferred Compensation Plan | 24,000 | $107.0K | 0.01% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 23,326 | $105.0K | 0.00% | +574+2.5% | Added |
| JPMorgan Chase & Co | 23,344 | $104.1K | 0.00% | +8,206+54.2% | Added |
| Archer Investment Corp | 21,400 | $95.4K | 0.03% | +4,300+25.1% | Added |
| Goldman Sachs Group Inc | 20,250 | $90.3K | 0.00% | −1,666−7.6% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 15,016 | $67.0K | 0.00% | 00.0% | Unchanged |
| LPL Financial LLC | 14,607 | $65.1K | 0.00% | −1,125−7.2% | Reduced |
| SG Americas Securities, LLC | 12,699 | $57.0K | 0.00% | +2,663+26.5% | Added |
| American International Group, Inc. | 11,581 | $51.7K | 0.00% | −46−0.4% | Reduced |
| Virtu Financial LLC | 11,248 | $50.0K | 0.00% | +11,248 | New |
| New York State Common Retirement Fund | 10,702 | $47.7K | 0.00% | +22+0.2% | Added |
| Neuberger Berman Group LLC | 10,188 | $45.4K | 0.00% | +10,188 | New |
| FMR LLC | 7,981 | $35.6K | 0.00% | +1,737+27.8% | Added |
| BNP Paribas Arbitrage, SA | 7,230 | $32.2K | 0.00% | +3,492+93.4% | Added |
| Wells Fargo & Company | 7,175 | $32.0K | 0.00% | +1,417+24.6% | Added |
| California State Teachers Retirement System | 3,835 | $17.1K | 0.00% | −1,306−25.4% | Reduced |
| Citigroup Inc | 3,498 | $15.6K | 0.00% | +3,443+6,260.0% | Added |
| Tower Research Capital LLC (TRC) | 3,056 | $13.6K | 0.00% | +777+34.1% | Added |
| Legal & General Group Plc | 2,179 | $9.72K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 2,032 | $9.00K | 0.00% | −234−10.3% | Reduced |
| Ameritas Investment Partners, Inc. | 1,924 | $8.58K | 0.00% | 00.0% | Unchanged |
| National Bank of Canada | 710 | $3.12K | 0.00% | 00.0% | Unchanged |
| Barrow Hanley Mewhinney & Strauss LLC | 533 | $2.38K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 527 | $2.35K | 0.00% | −139,635−99.6% | Reduced |
| Advisory Services Network, LLC | 500 | $2.23K | 0.00% | +500 | New |
| Perritt Capital Management Inc | 130 | $580 | 0.00% | +130 | New |
| Coppell Advisory Solutions LLC | 70 | $312 | 0.00% | −96−57.8% | Reduced |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −88,948−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −48,121−100.0% | Sold out |
| Boston Partners | 0 | $0 | 0.00% | −35,093−100.0% | Sold out |
| Algert Global LLC | 0 | $0 | 0.00% | −19,010−100.0% | Sold out |
| Cruiser Capital Advisors, LLC | 0 | $0 | 0.00% | −17,125−100.0% | Sold out |
| Wolverine Trading, LLC | 0 | $0 | 0.00% | −13,449−100.0% | Sold out |
| Stokes Family Office, LLC | 0 | $0 | 0.00% | −12,390−100.0% | Sold out |
| MetLife Investment Management | 0 | $0 | 0.00% | −12,318−100.0% | Sold out |
| Ritholtz Wealth Management | 0 | $0 | 0.00% | −11,150−100.0% | Sold out |
| London & Capital Asset Management Ltd | 0 | $0 | 0.00% | −10,017−100.0% | Sold out |
| Allspring Global Investments Holdings, LLC | 0 | $0 | 0.00% | −8,089−100.0% | Sold out |
| Metropolitan Life Insurance Co | 0 | $0 | 0.00% | −1,348−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −571−100.0% | Sold out |