MAMMOTH ENERGY SERVICES, INC. TUSK
CIK 0001679268 · CUSIP 56155L108
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | WEXFORD CAPITAL LP CIK 1048462 · View history | $90.26M 22,068,212 shares | 21.59% | -10.28K(0.0%)Reduced | SEC filing ↗ Nov 14, 2024 | ▾ |
| 02 | ADAGE CAPITAL PARTNERS GP, L.L.C. CIK 1165408 · View history | $16.58M 4,053,723 shares | 0.03% | -346.28K(-7.9%)Reduced | SEC filing ↗ Nov 14, 2024 | ▾ |
| 03 | VALUEWORKS LLC CIK 1282189 · View history | $12.83M 3,136,371 shares | 4.08% | -200.00K(-6.0%)Reduced | SEC filing ↗ Nov 14, 2024 | ▾ |
| 04 | BlackRock, Inc. CIK 2012383 · View history | $5.99M 1,464,112 shares | 0.00% | — | SEC filing ↗ Nov 13, 2024 | ▾ |
| 05 | ROYCE & ASSOCIATES LP CIK 906304 · View history | $5.53M 1,351,224 shares | 0.05% | +178.24K(+15.2%)Added | SEC filing ↗ Nov 6, 2024 | ▾ |
| 06 | VANGUARD GROUP INC CIK 102909 · View history | $3.86M 944,344 shares | 0.00% | +167.00K(+21.5%)Added | SEC filing ↗ Nov 13, 2024 | ▾ |
| 07 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $3.65M 892,928 shares | 0.00% | +86.65K(+10.7%)Added | SEC filing ↗ Nov 7, 2024 | ▾ |
| 08 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $2.16M 528,850 shares | 0.00% | +9.85K(+1.9%)Added | SEC filing ↗ Nov 12, 2024 | ▾ |
| 09 | STATE STREET CORP CIK 93751 · View history | $1.65M 403,688 shares | 0.00% | +5.40K(+1.4%)Added | SEC filing ↗ Nov 14, 2024 | ▾ |
| 10 | BRIDGEWAY CAPITAL MANAGEMENT, LLC CIK 1107261 · View history | $1.65M 403,257 shares | 0.04% | +4.15K(+1.0%)Added | SEC filing ↗ Nov 14, 2024 | ▾ |
| 11 | NORTHERN TRUST CORP CIK 73124 · View history | $825.62K 201,864 shares | 0.00% | +9.19K(+4.8%)Added | SEC filing ↗ Nov 13, 2024 | ▾ |
| 12 | CastleKnight Management LP CIK 1835751 · View history | $684.80K 167,433 shares | 0.08% | 0(0.0%)Unchanged | SEC filing ↗ Nov 14, 2024 | ▾ |
| 13 | Bank of New York Mellon Corp CIK 1390777 · View history | $610.16K 149,184 shares | 0.00% | -17.41K(-10.4%)Reduced | SEC filing ↗ Nov 12, 2024 | ▾ |
| 14 | RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history | $546.72K 133,672 shares | 0.00% | +3.00K(+2.3%)Added | SEC filing ↗ Nov 13, 2024 | ▾ |
| 15 | STIFEL FINANCIAL CORP CIK 720672 · View history | $431.79K 105,572 shares | 0.00% | -1.50K(-1.4%)Reduced | SEC filing ↗ Nov 14, 2024 | ▾ |
| 16 | MORGAN STANLEY CIK 895421 · Amended · View history | $363.26K 88,816 shares | 0.00% | +38.89K(+77.9%)Added | SEC filing ↗ May 14, 2025 | ▾ |
| 17 | Empowered Funds, LLC CIK 1592828 · View history | $340.11K 83,157 shares | 0.01% | +4.15K(+5.3%)Added | SEC filing ↗ Nov 6, 2024 | ▾ |
| 18 | SUSQUEHANNA INTERNATIONAL GROUP, LLP CIK 1446194 · View history | $325.71K 79,636 shares | 0.00% | +48.73K(+157.7%)Added | SEC filing ↗ Nov 14, 2024 | ▾ |
| 19 | CITADEL ADVISORS LLC CIK 1423053 · View history | $267.04K 65,290 shares | 0.00% | +56.30K(+626.1%)Added | SEC filing ↗ Nov 14, 2024 | ▾ |
| 20 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · View history | $260.17K 63,610 shares | 0.00% | -371(-0.6%)Reduced | SEC filing ↗ Nov 12, 2024 | ▾ |
Showing 20 / 65 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
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