Companies / Mammoth Energy Services, Inc. / Activity
Activity — Mammoth Energy Services, Inc.
40 moves.
Top impactInsider · CEO movesInsider · biggest buysInsider · biggest sellsInstitution · biggest movesInstitution · new positions
| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Q2 2026 as of | BlackRock, Inc. 13F manager | Trim | Common stock | $-3.46M | -1.1M -72.30% | 407,976 0.85% of shares | low |
| Q2 2026 as of | State Street Corporation 13F manager | Trim | Common stock | $-996.5K | -307K -75.06% | 101,864 0.21% of shares | low |
| Q1 2026 as of | Los Angeles Capital Management LLC 13F manager | New | Common stock | $400.0K | +163K | 163,259 0.34% of shares | low |
| Q1 2026 as of | Boston Partners 13F manager | New | Common stock | $378.3K | +154K | 154,388 0.32% of shares | low |
| Q1 2026 as of | Bridgeway Capital Management, LLC 13F manager | Trim | Common stock | $-190.3K | -78K -18.95% | 332,313 0.69% of shares | low |
| Q1 2026 as of | AQR Capital Management, LLC 13F manager | Add | Common stock | $135.9K | +55K +492.90% | 66,731 0.14% of shares | low |
| Q4 2023 as of | Barclays PLC 13F manager | Add | Common stock | $127.3K | +29K +97.87% | 57,727 0.12% of shares | low |
| Q1 2026 as of | Renaissance Technologies LLC 13F manager | Add | Common stock | $112.5K | +46K +24.67% | 231,972 0.48% of shares | low |
| Q2 2023 as of | Barclays PLC 13F manager | Trim | Common stock | $-105.4K | -22K -42.37% | 29,674 0.06% of shares | low |
| Q3 2024 as of | Barclays PLC 13F manager | Add | Common stock | $92.0K | +23K +65.08% | 57,081 0.12% of shares | low |
| Q2 2026 as of | Quadrature Capital Ltd 13F manager | Trim | Common stock | $-71.0K | -22K -33.18% | 44,015 0.09% of shares | low |
| Q1 2026 as of | Wexford Capital LP 13F manager | Trim | Common stock | $-68.2K | -28K -0.13% | 22,068,212 45.85% of shares | low |
| Q1 2026 as of | Mariner, LLC 13F manager | New | Common stock | $65.8K | +27K | 26,873 0.06% of shares | low |
| Q1 2026 as of | Geode Capital Management, LLC 13F manager | Add | Common stock | $61.8K | +25K +4.30% | 610,926 1.27% of shares | low |
| Q1 2026 as of | Levin Capital Strategies, L.P. 13F manager | New | Common stock | $61.3K | +25K | 25,000 0.05% of shares | low |
| Q1 2024 as of | Barclays PLC 13F manager | Trim | Common stock | $-59.3K | -16K -28.24% | 41,423 0.09% of shares | low |
| Q1 2026 as of | Marshall Wace, LLP 13F manager | Exit | Common stock | $-57.0K | -31K -100.00% | 0 | low |
| Q2 2025 as of | Barclays PLC 13F manager | Add | Common stock | $47.7K | +17K +34.38% | 66,548 0.14% of shares | low |
| Q4 2025 as of | Barclays PLC 13F manager | Trim | Common stock | $-39.2K | -21K -35.78% | 38,064 0.08% of shares | low |
| Q1 2025 as of | Barclays PLC 13F manager | Trim | Common stock | $-24.5K | -12K -19.54% | 49,521 0.10% of shares | low |
| Q2 2024 as of | Barclays PLC 13F manager | Trim | Common stock | $-22.5K | -7K -16.52% | 34,578 0.07% of shares | low |
| Q4 2025 as of | Bank of America Corp /De 13F manager | Add | Common stock | $18.9K | +10K +86.56% | 22,072 0.05% of shares | low |
| Q3 2025 as of | Barclays PLC 13F manager | Trim | Common stock | $-16.7K | -7K -10.94% | 59,269 0.12% of shares | low |
| Q4 2024 as of | Barclays PLC 13F manager | Add | Common stock | $13.4K | +4K +7.83% | 61,549 0.13% of shares | low |
| Q2 2026 as of | The PNC Financial Services Group, Inc. 13F manager | Add | Common stock | $11.7K | +4K +99.25% | 7,217 0.01% of shares | low |
| Q1 2023 as of | Barclays PLC 13F manager | Add | Common stock | $6.3K | +1K +2.98% | 51,489 0.11% of shares | low |
| Q1 2026 as of | Valueworks LLC 13F manager | Trim | Common stock | $-5.0K | -2K -16.09% | 10,720 0.02% of shares | low |
| Q1 2026 as of | California State Teachers Retirement System 13F manager | Exit | Common stock | $-2.8K | -1K -100.00% | 0 | low |
| Q3 2023 as of | Barclays PLC 13F manager | Trim | Common stock | $-2.3K | -500 -1.68% | 29,174 0.06% of shares | low |
| Q1 2026 as of | Sterling Capital Management LLC 13F manager | Trim | Common stock | $-2.1K | -871 -52.03% | 803 <0.01% of shares | low |
| Q1 2026 as of | Allianz SE 13F manager | New | Common stock | $2.0K | +800 | 800 <0.01% of shares | low |
| Q1 2026 as of | AllianceBernstein L.P. 13F manager | Trim | Common stock | $-814 | -440 -3.86% | 10,950 0.02% of shares | low |
| Q1 2026 as of | BNP Paribas Financial Markets 13F manager | Trim | Common stock | $-654 | -267 -1.57% | 16,747 0.03% of shares | low |
| Q1 2026 as of | Rhumbline Advisers 13F manager | Add | Common stock | $539 | +220 +0.67% | 32,863 0.07% of shares | low |
| Q1 2026 as of | MAI Capital Management 13F manager | New | Common stock | $412 | +168 | 168 <0.01% of shares | low |
| Q1 2026 as of | Bank of New York Mellon Corp/The 13F manager | Trim | Common stock | $-331 | -135 -0.10% | 132,539 0.28% of shares | low |
| Q1 2026 as of | Northwestern Mutual Wealth Management Co 13F manager | Exit | Common stock | $-52 | -28 -100.00% | 0 | low |
| Q1 2026 as of | Gsa Capital Partners LLP 13F manager | New | Common stock | $34 | +14K | 13,909 0.03% of shares | low |
| Q4 2025 as of | IFP Advisors, Inc 13F manager | Add | Common stock | $2 | +1 +3.33% | 31 <0.01% of shares | low |
| Q1 2026 as of | Royal Bank of Canada 13F manager | Trim | Common stock | $0 | -1K -99.91% | 1 <0.01% of shares | low |