TUSK — Institutional owners (13F)
Institutions that report holding this stock in their quarterly SEC Form 13F. Long positions only; a single filer may appear twice for separate option legs. Large offsetting put/call legs typically reflect market-making or hedged inventory, not directional conviction.
| Institution | Value | Shares | % of tracked 13F | Type |
|---|---|---|---|---|
| WEXFORD CAPITAL LP | $39,233,425 | 12,071,823 | 45.66% | Shares |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | $14,868,750 | 4,575,000 | 17.30% | Shares |
| VANGUARD CAPITAL MANAGEMENT LLC | $3,443,710 | 1,059,603 | 4.01% | Shares |
| Peapod Lane Capital LLC | $2,625,363 | 807,804 | 3.06% | Shares |
| DIMENSIONAL FUND ADVISORS LP | $2,247,249 | 691,667 | 2.62% | Shares |
| VANGUARD GROUP INC | $1,891,461 | 1,022,411 | 2.20% | Shares |
| JANE STREET GROUP, LLC | $1,646,651 | 506,662 | 1.92% | Shares |
| CITADEL ADVISORS LLC | $1,469,530 | 452,163 | 1.71% | Shares |
| BlackRock, Inc. | $1,325,923 | 407,976 | 1.54% | Shares |
| MARSHALL WACE, LLP | $1,285,645 | 395,583 | 1.50% | Shares |
| Johns Hopkins University | $1,258,917 | 387,359 | 1.47% | Shares |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | $1,080,017 | 332,313 | 1.26% | Shares |
| Russell Investments Group, Ltd. | $1,071,918 | 329,821 | 1.25% | Shares |
| GEODE CAPITAL MANAGEMENT, LLC | $995,730 | 306,028 | 1.16% | Shares |
| RENAISSANCE TECHNOLOGIES LLC | $949,910 | 292,280 | 1.11% | Shares |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $942,812 | 290,096 | 1.10% | Shares |
| Empowered Funds, LLC | $784,267 | 241,313 | 0.91% | Shares |
| AQR CAPITAL MANAGEMENT LLC | $577,928 | 177,824 | 0.67% | Shares |
| VANGUARD FIDUCIARY TRUST CO | $525,821 | 161,791 | 0.61% | Shares |
| Round Rock Advisors LLC | $496,733 | 152,841 | 0.58% | Shares |
| CITADEL ADVISORS LLC | $458,575 | 141,100 | 0.53% | Call option |
| MORGAN STANLEY | $434,070 | 133,560 | 0.51% | Shares |
| Centiva Capital, LP | $425,328 | 130,870 | 0.49% | Shares |
| MILLENNIUM MANAGEMENT LLC | $403,604 | 124,186 | 0.47% | Shares |
| Marquette Asset Management, LLC | $356,935 | 109,826 | 0.42% | Shares |
| STIFEL FINANCIAL CORP | $343,109 | 105,572 | 0.40% | Shares |
| STATE STREET CORP | $331,058 | 101,864 | 0.39% | Shares |
| BANK OF AMERICA CORP /DE/ | $315,400 | 97,046 | 0.37% | Shares |
| BNP PARIBAS FINANCIAL MARKETS | $302,133 | 92,964 | 0.35% | Shares |
| Point72 Asset Management, L.P. | $234,296 | 72,091 | 0.27% | Shares |
| Boston Partners | $224,040 | 68,935 | 0.26% | Shares |
| Aster Capital Management (DIFC) Ltd | $219,603 | 67,570 | 0.26% | Shares |
| Bank of New York Mellon Corp | $201,523 | 62,007 | 0.23% | Shares |
| Qube Research & Technologies Ltd | $191,292 | 58,859 | 0.22% | Shares |
| TWO SIGMA INVESTMENTS, LP | $190,249 | 58,538 | 0.22% | Shares |
| NORTHERN TRUST CORP | $185,835 | 57,180 | 0.22% | Shares |
| GOLDMAN SACHS GROUP INC | $178,516 | 54,928 | 0.21% | Shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $162,240 | 49,920 | 0.19% | Shares |
| XTX Topco Ltd | $160,098 | 49,261 | 0.19% | Shares |
| Walleye Capital LLC | $159,708 | 49,141 | 0.19% | Shares |
| WELLINGTON MANAGEMENT GROUP LLP | $154,330 | 47,486 | 0.18% | Shares |
| ALGERT GLOBAL LLC | $149,490 | 45,997 | 0.17% | Shares |
| Quadrature Capital Ltd | $143,049 | 44,015 | 0.17% | Shares |
| HSBC HOLDINGS PLC | $108,028 | 33,706 | 0.13% | Shares |
| UBS Group AG | $95,933 | 29,518 | 0.11% | Shares |
| Connor, Clark & Lunn Investment Management Ltd. | $92,888 | 28,581 | 0.11% | Shares |
| CAPTRUST FINANCIAL ADVISORS | $87,097 | 26,799 | 0.10% | Shares |
| BARCLAYS PLC | $83,048 | 25,553 | 0.10% | Shares |
| IEQ CAPITAL, LLC | $79,274 | 24,392 | 0.09% | Shares |
| Pathstone Holdings, LLC | $72,592 | 22,336 | 0.08% | Shares |
| NJ State Employees Deferred Compensation Plan | $54,960 | 24,000 | 0.06% | Shares |
| Schonfeld Strategic Advisors LLC | $54,807 | 16,864 | 0.06% | Shares |
| RHUMBLINE ADVISERS | $53,978 | 16,609 | 0.06% | Shares |
| AXQ CAPITAL, LP | $45,185 | 13,903 | 0.05% | Shares |
| Tower Research Capital LLC (TRC) | $43,800 | 13,477 | 0.05% | Shares |
| Creative Planning | $43,280 | 13,317 | 0.05% | Shares |
| Mariner, LLC | $43,148 | 13,287 | 0.05% | Shares |
| FMR LLC | $40,726 | 12,531 | 0.05% | Shares |
| STEINBERGANNA WEALTH MANAGEMENT | $37,570 | 11,560 | 0.04% | Shares |
| JPMORGAN CHASE & CO | $36,040 | 12,385 | 0.04% | Shares |
| PRELUDE CAPITAL MANAGEMENT, LLC | $35,100 | 10,800 | 0.04% | Shares |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $34,902 | 10,739 | 0.04% | Shares |
| Vanguard Global Advisers, LLC | $28,516 | 8,774 | 0.03% | Shares |
| Archer Investment Corp | $26,650 | 8,200 | 0.03% | Shares |
| PNC Financial Services Group, Inc. | $23,455 | 7,217 | 0.03% | Shares |
| CWM, LLC | $14,193 | 5,793 | 0.02% | Shares |
| ROYAL BANK OF CANADA | $14,000 | 4,537 | 0.02% | Shares |
| SIMPLEX TRADING, LLC | $11,235 | 3,457 | 0.01% | Shares |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $3,469 | 1,416 | 0.00% | Shares |
| Arax Advisory Partners | $2,740 | 843 | 0.00% | Shares |
| Allworth Financial LP | $2,730 | 840 | 0.00% | Shares |
| Allianz SE | $2,600 | 800 | 0.00% | Shares |
| GROUP ONE TRADING LLC | $2,525 | 777 | 0.00% | Shares |
| WELLS FARGO & COMPANY/MN | $975 | 300 | 0.00% | Shares |
| EverSource Wealth Advisors, LLC | $898 | 276 | 0.00% | Shares |
| ROTHSCHILD INVESTMENT LLC | $777 | 239 | 0.00% | Shares |
| Essential Partners LLC | $689 | 212 | 0.00% | Shares |
| MCGUIRE CAPITAL ADVISORS INC | $650 | 200 | 0.00% | Shares |
| Westside Investment Management, Inc. | $608 | 187 | 0.00% | Shares |
| OSAIC HOLDINGS, INC. | $487 | 150 | 0.00% | Shares |
| GSA CAPITAL PARTNERS LLP | $421 | 129,547 | 0.00% | Shares |
| ACADIAN ASSET MANAGEMENT LLC | $396 | 122,050 | 0.00% | Shares |
| Farther Finance Advisors, LLC | $343 | 107 | 0.00% | Shares |
| FNY Investment Advisers, LLC | $248 | 76,481 | 0.00% | Shares |
| True Wealth Design, LLC | $121 | 37 | 0.00% | Shares |
| Transamerica Financial Advisors, LLC | $100 | 31 | 0.00% | Shares |
| HRT FINANCIAL LP | $99 | 30,632 | 0.00% | Shares |
| SJS Investment Consulting Inc. | $98 | 30 | 0.00% | Shares |
| IFP Advisors, Inc | $88 | 27 | 0.00% | Shares |
| Wealth Enhancement Trust Services, Inc. | $55 | 17 | 0.00% | Shares |
| Virtu Financial LLC | $42 | 12,793 | 0.00% | Shares |
| Caitong International Asset Management Co., Ltd | $32 | 10 | 0.00% | Shares |
| JPL Wealth Management, LLC | $30 | 9 | 0.00% | Shares |
| Fortitude Family Office, LLC | $23 | 7 | 0.00% | Shares |
| CITIGROUP INC | $3 | 1 | 0.00% | Shares |
| SBI Securities Co., Ltd. | $3 | 1 | 0.00% | Shares |