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 2024
Institutional positions in Mammoth Energy Services, Inc. as of Sep 30, 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
- 64
- −2 vs. Q2 2024
- Shares held
- 37.1M
- −191.7K (−0.5%) vs. Q2 2024
- Total value
- $151.9M
- +$29.4M (+24.1%) vs. Q2 2024
- New holders
- 8
- 26 more added
- Sold out
- 10
- 14 more reduced
1 institution that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2024
Shares, value and share of portfolio for each institution holding Mammoth Energy Services, Inc.; share changes are against Q2 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Wexford Capital LP | 22,068,212 | $90.3M | 21.59% | −10,2790.0% | Reduced |
| Adage Capital Partners GP, L.L.C. | 4,053,723 | $16.6M | 0.03% | −346,277−7.9% | Reduced |
| Valueworks LLC | 3,136,371 | $12.8M | 4.08% | −199,997−6.0% | Reduced |
| BlackRock, Inc. | 1,464,112 | $5.99M | 0.00% | +1,464,112 | New |
| Royce & Associates LP | 1,351,224 | $5.53M | 0.05% | +178,240+15.2% | Added |
| Vanguard Group Inc | 944,344 | $3.86M | 0.00% | +167,003+21.5% | Added |
| Dimensional Fund Advisors LP | 892,928 | $3.65M | 0.00% | +86,648+10.7% | Added |
| Geode Capital Management, LLC | 528,850 | $2.16M | 0.00% | +9,852+1.9% | Added |
| State Street Corp | 403,688 | $1.65M | 0.00% | +5,400+1.4% | Added |
| Bridgeway Capital Management, LLC | 403,257 | $1.65M | 0.04% | +4,154+1.0% | Added |
| Northern Trust Corp | 201,864 | $825.6K | 0.00% | +9,191+4.8% | Added |
| CastleKnight Management LP | 167,433 | $684.8K | 0.08% | 00.0% | Unchanged |
| Bank of New York Mellon Corp | 149,184 | $610.2K | 0.00% | −17,407−10.4% | Reduced |
| Renaissance Technologies LLC | 133,672 | $546.7K | 0.00% | +3,000+2.3% | Added |
| Stifel Financial Corp | 105,572 | $431.8K | 0.00% | −1,500−1.4% | Reduced |
| Morgan Stanley | 88,816 | $363.3K | 0.00% | +38,893+77.9% | Added |
| Empowered Funds, LLC | 83,157 | $340.1K | 0.01% | +4,154+5.3% | Added |
| Susquehanna International Group, LLP | 79,636 | $325.7K | 0.00% | +48,730+157.7% | Added |
| Citadel Advisors LLC | 65,290 | $267.0K | 0.00% | +56,298+626.1% | Added |
| Charles Schwab Investment Management Inc | 63,610 | $260.2K | 0.00% | −371−0.6% | Reduced |
| Goldman Sachs Group Inc | 59,454 | $243.2K | 0.00% | +19,414+48.5% | Added |
| NBC Securities, Inc. | 58,740 | $240.0K | 0.02% | 00.0% | Unchanged |
| Long Focus Capital Management, LLC | 57,681 | $235.9K | 0.02% | 00.0% | Unchanged |
| Barclays PLC | 57,081 | $233.5K | 0.00% | +22,503+65.1% | Added |
| Advisor Group Holdings, Inc. | 54,850 | $224.3K | 0.00% | 00.0% | Unchanged |
| Wellington Management Group LLP | 48,071 | $196.6K | 0.00% | +48,071 | New |
| Nuveen Asset Management, LLC | 36,843 | $150.7K | 0.00% | 00.0% | Unchanged |
| Penbrook Management LLC | 32,700 | $133.7K | 0.09% | −29,200−47.2% | Reduced |
| Price T Rowe Associates Inc | 26,473 | $109.0K | 0.00% | +2,042+8.4% | Added |
| Acadian Asset Management LLC | 26,449 | $108.0K | 0.00% | −27,908−51.3% | Reduced |
| Rhumbline Advisers | 25,096 | $102.6K | 0.00% | −2,683−9.7% | Reduced |
| UBS Group AG | 24,492 | $100.2K | 0.00% | +12,438+103.2% | Added |
| NJ State Employees Deferred Compensation Plan | 24,000 | $98.2K | 0.01% | 00.0% | Unchanged |
| Citigroup Inc | 20,225 | $82.7K | 0.00% | +14,568+257.5% | Added |
| Jane Street Group, LLC | 18,544 | $75.8K | 0.00% | −18,554−50.0% | Reduced |
| Bank of America Corp | 15,690 | $64.2K | 0.00% | +319+2.1% | Added |
| LPL Financial LLC | 15,557 | $63.6K | 0.00% | +1,700+12.3% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 13,362 | $54.7K | 0.00% | +1,973+17.3% | Added |
| Corebridge Financial, Inc. | 12,993 | $53.1K | 0.00% | −80−0.6% | Reduced |
| Squarepoint Ops LLC | 12,990 | $53.1K | 0.00% | +12,990 | New |
| XTX Topco Ltd | 12,964 | $53.0K | 0.00% | +12,964 | New |
| Archer Investment Corp | 12,400 | $50.7K | 0.01% | −9,000−42.1% | Reduced |
| JPMorgan Chase & Co | 11,160 | $45.6K | 0.00% | −13,179−54.1% | Reduced |
| Wells Fargo & Company | 11,156 | $45.6K | 0.00% | +480+4.5% | Added |
| FMR LLC | 10,967 | $44.9K | 0.00% | +2,705+32.7% | Added |
| New York State Common Retirement Fund | 10,696 | $43.7K | 0.00% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 10,345 | $42.0K | 0.00% | +10,345 | New |
| BNP Paribas Arbitrage, SA | 6,504 | $26.6K | 0.00% | +1,567+31.7% | Added |
| Perkins Coie Trust Co | 5,000 | $20.4K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 3,484 | $14.0K | 0.00% | +1,199+52.5% | Added |
| Legal & General Group Plc | 2,179 | $8.91K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 1,941 | $7.94K | 0.00% | −9,341−82.8% | Reduced |
| Ameritas Investment Partners, Inc. | 1,924 | $7.87K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 1,761 | $7.20K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 1,014 | $4.15K | 0.00% | +100+10.9% | Added |
| US Bancorp | 833 | $3.41K | 0.00% | +833 | New |
| Amalgamated Bank | 785 | $3.00K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 365 | $1.00K | 0.00% | +230+170.4% | Added |
| National Bank of Canada | 110 | $450 | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 103 | $421 | 0.00% | 00.0% | Unchanged |
| Sterling Capital Management LLC | 77 | $315 | 0.00% | +77 | New |
| Coppell Advisory Solutions LLC | 70 | $287 | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 48 | $196 | 0.00% | 00.0% | Unchanged |
| Capital Performance Advisors LLP | 13 | $53 | 0.00% | +13 | New |
| Kanen Wealth Management LLC | 0 | $0 | 0.00% | −1,323,442−100.0% | Sold out |
| X-Square Capital, LLC | 0 | $0 | 0.00% | −215,092−100.0% | Sold out |
| Invesco Ltd. | 0 | $0 | 0.00% | −68,130−100.0% | Sold out |
| First Trust Advisors LP | 0 | $0 | 0.00% | −64,745−100.0% | Sold out |
| Full Sail Capital, LLC | 0 | $0 | 0.00% | −27,191−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −24,478−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −16,700−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −8,061−100.0% | Sold out |
| Barrow Hanley Mewhinney & Strauss LLC | 0 | $0 | 0.00% | −168−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −166−100.0% | Sold out |
| BlackRock Inc. | – | – | – | – | Not filed |