Montauk Renewables, Inc. - MNTK
Detailed investor-level table based on 13F positions.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| VANGUARD GROUP INC | History | No change | 3,528,926 | 5,893 | 0.0% | 0.0% | 1 | 0 | 0.0% | Q4 2025 | Jan 29, 2026 |
| BlackRock, Inc. | History | Reduced | 4,218,997 | 4,851 | 0.0% | 0.0% | 2 | -105,289 | -2.43% | Q1 2026 | May 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | History | New | 2,688,714 | 3,092 | 0.0% | — | 3 | +2,688,714 | New | Q1 2026 | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Added to | 1,759,278 | 2,023 | 0.0% | 0.0% | 4 | +34,345 | 1.99% | Q1 2026 | May 15, 2026 |
| Baader Bank Aktiengesellschaft | History | No change | 1,605,000 | 1,845 | 0.14% | 0.18% | 5 | 0 | 0.0% | Q1 2026 | May 08, 2026 |
| STATE STREET CORP | History | Reduced | 1,365,473 | 1,570 | 0.0% | 0.0% | 6 | -20,487 | -1.48% | Q1 2026 | May 15, 2026 |
| BARCLAYS PLC | History | Added to | 1,038,917 | 1,194 | 0.0% | 0.0% | 7 | +929,541 | 849.86% | Q1 2026 | May 14, 2026 |
| AMERICAN CENTURY COMPANIES INC | History | Reduced | 954,468 | 1,097 | 0.0% | 0.0% | 8 | -643 | -0.07% | Q1 2026 | May 15, 2026 |
| DIMENSIONAL FUND ADVISORS LP | History | Reduced | 736,584 | 847 | 0.0% | 0.0% | 9 | -95,950 | -11.53% | Q1 2026 | May 07, 2026 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | History | Reduced | 520,611 | 598 | 0.0% | 0.0% | 10 | -24,038 | -4.41% | Q1 2026 | May 15, 2026 |
| NORTHERN TRUST CORP | History | Added to | 505,374 | 581 | 0.0% | 0.0% | 11 | +39,639 | 8.51% | Q1 2026 | May 14, 2026 |
| VANGUARD FIDUCIARY TRUST CO | History | New | 432,268 | 497 | 0.0% | — | 12 | +432,268 | New | Q1 2026 | May 08, 2026 |
| Hosking Partners LLP | History | Added to | 396,932 | 456 | 0.02% | 0.02% | 13 | +682 | 0.17% | Q1 2026 | Apr 21, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | History | New | 388,919 | 447 | 0.0% | — | 14 | +388,919 | New | Q1 2026 | May 08, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | Added to | 354,600 | 407 | 0.0% | 0.0% | 15 | +11,900 | 3.47% | Q1 2026 | May 14, 2026 |
| GOLDMAN SACHS GROUP INC | History | Added to | 331,189 | 380 | 0.0% | 0.0% | 16 | +135,157 | 68.95% | Q1 2026 | May 15, 2026 |
| FIRST TRUST ADVISORS LP | History | Reduced | 311,950 | 358 | 0.0% | 0.0% | 17 | -26,269 | -7.77% | Q1 2026 | May 13, 2026 |
| GSA CAPITAL PARTNERS LLP | History | Added to | 289,894 | 333 | 0.02% | 0.03% | 18 | +47,248 | 19.47% | Q1 2026 | May 08, 2026 |
| MORGAN STANLEY | History | Reduced | 261,398 | 300 | 0.0% | 0.0% | 19 | -67,264 | -20.47% | Q1 2026 | May 15, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | Added to | 206,854 | 237 | 0.0% | 0.0% | 20 | +181,204 | 706.45% | Q1 2026 | May 15, 2026 |
| MARSHALL WACE, LLP | History | New | 204,636 | 235 | 0.0% | — | 21 | +204,636 | New | Q1 2026 | May 14, 2026 |
| Bank of New York Mellon Corp | History | Reduced | 195,907 | 225 | 0.0% | 0.0% | 22 | -13,661 | -6.52% | Q1 2026 | May 05, 2026 |
| JTC Employer Solutions Trustee Ltd | History | No change | 197,859 | 217 | 0.02% | 0.02% | 23 | 0 | 0.0% | Q1 2026 | May 19, 2026 |
| JPMORGAN CHASE & CO | History | Reduced | 162,252 | 193 | 0.0% | 0.0% | 24 | -9,940 | -5.77% | Q1 2026 | May 13, 2026 |
| ALLIANCEBERNSTEIN L.P. | History | No change | 97,520 | 162 | 0.0% | 0.0% | 25 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| Nuveen, LLC | History | Added to | 139,608 | 160 | 0.0% | 0.0% | 26 | +858 | 0.62% | Q1 2026 | Apr 30, 2026 |
| D. E. Shaw & Co., Inc. | History | Reduced | 118,256 | 135 | 0.0% | 0.0% | 27 | -74,092 | -38.52% | Q1 2026 | May 15, 2026 |
| Rathbones Group PLC | History | Added to | 102,000 | 117 | 0.0% | 0.0% | 28 | +10,000 | 10.87% | Q1 2026 | May 12, 2026 |
| RHUMBLINE ADVISERS | History | Reduced | 93,078 | 107 | 0.0% | 0.0% | 29 | -3,630 | -3.75% | Q1 2026 | May 12, 2026 |
| STOREBRAND ASSET MANAGEMENT AS | History | Reduced | 82,175 | 94 | 0.0% | 0.0% | 30 | -17,232 | -17.33% | Q1 2026 | May 05, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Added to | 60,707 | 69 | 0.0% | 0.0% | 31 | +1,558 | 2.63% | Q1 2026 | May 15, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | History | Added to | 56,106 | 62 | 0.0% | 0.0% | 32 | +44,174 | 370.21% | Q1 2026 | May 13, 2026 |
| DEUTSCHE BANK AG\ | History | No change | 47,007 | 54 | 0.0% | 0.0% | 33 | 0 | 0.0% | Q1 2026 | May 06, 2026 |
| UBS Group AG | History | Reduced | 41,867 | 48 | 0.0% | 0.0% | 34 | -27,189 | -39.37% | Q1 2026 | May 05, 2026 |
| STRS OHIO | History | No change | 40,000 | 46 | 0.0% | 0.0% | 35 | 0 | 0.0% | Q1 2026 | Apr 24, 2026 |
| AQR CAPITAL MANAGEMENT LLC | History | Added to | 38,351 | 44 | 0.0% | 0.0% | 36 | +23,794 | 163.45% | Q1 2026 | May 15, 2026 |
| Invesco Ltd. | History | Added to | 37,339 | 42 | 0.0% | 0.0% | 37 | +6,284 | 20.24% | Q1 2026 | May 12, 2026 |
| Squarepoint Ops LLC | History | New | 35,893 | 41 | 0.0% | — | 38 | +35,893 | New | Q1 2026 | May 15, 2026 |
| JANE STREET GROUP, LLC | History | Reduced | 35,576 | 39 | 0.0% | 0.0% | 40 | -95,111 | -72.78% | Q1 2026 | May 12, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | History | No change | 33,876 | 39 | 0.0% | 0.0% | 39 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | History | Added to | 32,892 | 37 | 0.0% | 0.0% | 42 | +766 | 2.38% | Q1 2026 | May 15, 2026 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | History | No change | 32,288 | 37 | 0.0% | 0.0% | 41 | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| Russell Investments Group, Ltd. | History | Reduced | 31,293 | 35 | 0.0% | 0.0% | 43 | -1,295 | -3.97% | Q1 2026 | May 08, 2026 |
| LOS ANGELES CAPITAL MANAGEMENT LLC | History | No change | 29,205 | 33 | 0.0% | 0.0% | 44 | 0 | 0.0% | Q1 2026 | May 08, 2026 |
| Quadrature Capital Ltd | History | New | 26,928 | 30 | 0.0% | — | 45 | +26,928 | New | Q1 2026 | May 15, 2026 |
| WELLS FARGO & COMPANY/MN | History | Reduced | 25,214 | 28 | 0.0% | 0.0% | 46 | -49,835 | -66.4% | Q1 2026 | May 11, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | Added to | 24,495 | 28 | 0.0% | 0.0% | 47 | +8,683 | 54.91% | Q1 2026 | May 15, 2026 |
| TWO SIGMA ADVISERS, LP | History | No change | 16,800 | 28 | 0.0% | 0.0% | 48 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Vanguard Global Advisers, LLC | History | New | 23,853 | 27 | 0.0% | — | 49 | +23,853 | New | Q1 2026 | May 08, 2026 |
| Boyer Financial Services, Inc. | History | New | 22,990 | 26 | 0.03% | — | 50 | +22,990 | New | Q1 2026 | Apr 10, 2026 |
| Engineers Gate Manager LP | History | Added to | 18,628 | 21 | 0.0% | 0.0% | 52 | +5,054 | 37.23% | Q1 2026 | May 15, 2026 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | History | Reduced | 18,967 | 21 | 0.0% | 0.0% | 51 | -1,615 | -7.85% | Q1 2026 | May 15, 2026 |
| INTECH INVESTMENT MANAGEMENT LLC | History | Reduced | 17,748 | 20 | 0.0% | 0.0% | 53 | -13,738 | -43.63% | Q1 2026 | May 08, 2026 |
| Tower Research Capital LLC (TRC) | History | Added to | 17,233 | 19 | 0.0% | 0.0% | 55 | +11,358 | 193.33% | Q1 2026 | May 15, 2026 |
| Neuberger Berman Group LLC | History | Added to | 16,744 | 19 | 0.0% | 0.0% | 54 | +4,219 | 33.68% | Q1 2026 | May 14, 2026 |
| TWO SIGMA SECURITIES, LLC | History | Reduced | 16,469 | 18 | 0.0% | 0.01% | 57 | -20,824 | -55.84% | Q1 2026 | May 15, 2026 |
| CITIGROUP INC | History | Added to | 15,781 | 18 | 0.0% | 0.0% | 56 | +8,518 | 117.28% | Q1 2026 | May 11, 2026 |
| Police & Firemen's Retirement System of New Jersey | History | No change | 16,326 | 18 | 0.0% | 0.0% | 58 | 0 | 0.0% | Q1 2026 | Apr 29, 2026 |
| PRUDENTIAL FINANCIAL INC | History | New | 14,810 | 17 | 0.0% | — | 59 | +14,810 | New | Q1 2026 | May 13, 2026 |
| XTX Topco Ltd | History | New | 14,173 | 16 | 0.0% | — | 61 | +14,173 | New | Q1 2026 | May 15, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | Added to | 14,701 | 16 | 0.0% | 0.0% | 60 | +294 | 2.04% | Q1 2026 | May 12, 2026 |
| VOYA INVESTMENT MANAGEMENT LLC | History | No change | 13,694 | 15 | 0.0% | 0.0% | 62 | 0 | 0.0% | Q1 2026 | May 12, 2026 |
| Tidal Investments LLC | History | New | 11,738 | 13 | 0.0% | — | 63 | +11,738 | New | Q1 2026 | May 15, 2026 |
| Point72 Asset Management, L.P. | History | Added to | 10,871 | 12 | 0.0% | 0.0% | 64 | +453 | 4.35% | Q1 2026 | May 15, 2026 |
| JONES FINANCIAL COMPANIES LLLP | History | New | 9,259 | 11 | 0.0% | — | 66 | +9,259 | New | Q1 2026 | May 15, 2026 |
| N.E.W. Advisory Services LLC | History | No change | 10,000 | 11 | 0.0% | 0.0% | 65 | 0 | 0.0% | Q1 2026 | May 04, 2026 |
| Zurcher Kantonalbank (Zurich Cantonalbank) | History | Reduced | 7,852 | 9 | 0.0% | 0.0% | 67 | -472 | -5.67% | Q1 2026 | May 15, 2026 |
| Ameritas Investment Partners, Inc. | History | No change | 6,625 | 7 | 0.0% | 0.0% | 68 | 0 | 0.0% | Q1 2026 | May 13, 2026 |
| Legal & General Group Plc | History | Reduced | 5,771 | 6 | 0.0% | 0.0% | 69 | -290 | -4.78% | Q1 2026 | May 08, 2026 |
| SIMPLEX TRADING, LLC | History | New | 4,915 | 5 | 0.0% | — | 70 | +4,915 | New | Q1 2026 | May 14, 2026 |
| OSAIC HOLDINGS, INC. | History | New | 4,000 | 4 | 0.0% | — | 72 | +4,000 | New | Q1 2026 | May 15, 2026 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | History | Reduced | 3,641 | 4 | 0.0% | 0.0% | 71 | -497 | -12.01% | Q1 2026 | May 15, 2026 |
| Ninety One SA (PTY) Ltd | History | New | 3,110 | 3 | 0.0% | — | 75 | +3,110 | New | Q1 2026 | Apr 24, 2026 |
| ROYAL BANK OF CANADA | History | Added to | 3,008 | 3 | 0.0% | 0.0% | 74 | +1,006 | 50.25% | Q1 2026 | May 15, 2026 |
| NEW YORK STATE COMMON RETIREMENT FUND | History | No change | 3,365 | 3 | 0.0% | 0.0% | 73 | 0 | 0.0% | Q1 2026 | May 06, 2026 |
| Sterling Capital Management LLC | History | Reduced | 1,846 | 2 | 0.0% | 0.0% | 76 | -1,299 | -41.3% | Q1 2026 | Apr 22, 2026 |
| CWM, LLC | History | Added to | 2,274 | 2 | 0.0% | 0.0% | 77 | +1,147 | 101.77% | Q1 2026 | May 14, 2026 |
| TOWARZYSTWO FUNDUSZY INWESTYCYJNYCH PZU SA | History | No change | 1,200 | 1 | 0.0% | 0.0% | 78 | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| CITADEL ADVISORS LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -200,021 | -100.0% | Q1 2026 | May 15, 2026 |
| Andina Capital Management, LLC | History | Closed out | 0 | 0 | — | 0.04% | — | -41,572 | -100.0% | Q1 2026 | Apr 17, 2026 |
| R Squared Ltd | History | Closed out | 0 | 0 | — | 0.02% | — | -28,945 | -100.0% | Q1 2026 | Apr 29, 2026 |
| HRT FINANCIAL LP | History | Closed out | 0 | 0 | — | 0.0% | — | -26,353 | -100.0% | Q1 2026 | May 14, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | Closed out | 0 | 0 | — | 0.0% | — | -23,215 | -100.0% | Q1 2026 | May 15, 2026 |
| ProShare Advisors LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -12,291 | -100.0% | Q1 2026 | Apr 24, 2026 |
| FMR LLC | History | Reduced | 810 | 0 | — | 0.0% | — | -8,348 | -91.16% | Q1 2026 | May 15, 2026 |
| GAMMA Investing LLC | History | Reduced | 339 | 0 | — | 0.0% | — | -5,663 | -94.35% | Q1 2026 | Apr 06, 2026 |
| AMALGAMATED BANK | History | Closed out | 0 | 0 | — | 0.0% | — | -2,114 | -100.0% | Q1 2026 | May 08, 2026 |
| Optiver Holding B.V. | History | Reduced | 636 | 0 | — | 0.0% | — | -448 | -41.33% | Q1 2026 | May 15, 2026 |
| IFP Advisors, Inc | History | New | 188 | 0 | — | — | — | +188 | New | Q1 2026 | Apr 13, 2026 |
| PNC FINANCIAL SERVICES GROUP, INC. | History | Reduced | 133 | 0 | — | — | — | -155 | -53.82% | Q1 2026 | May 08, 2026 |
| SBI Securities Co., Ltd. | History | Added to | 116 | 0 | — | — | — | +102 | 728.57% | Q1 2026 | Apr 27, 2026 |
| BESSEMER GROUP INC | History | Closed out | 0 | 0 | — | — | — | -90 | -100.0% | Q1 2026 | May 06, 2026 |
| ROTHSCHILD INVESTMENT LLC | History | Reduced | 25 | 0 | — | — | — | -61 | -70.93% | Q1 2026 | May 07, 2026 |
| EverSource Wealth Advisors, LLC | History | Reduced | 69 | 0 | — | — | — | -54 | -43.9% | Q1 2026 | May 15, 2026 |
| True Wealth Design, LLC | History | Added to | 57 | 0 | — | — | — | +45 | 375.0% | Q1 2026 | Apr 13, 2026 |
| Covestor Ltd | History | Added to | 64 | 0 | — | — | — | +42 | 190.91% | Q1 2026 | May 05, 2026 |
| Farther Finance Advisors, LLC | History | Added to | 82 | 0 | — | — | — | +22 | 36.67% | Q1 2026 | Apr 07, 2026 |
| MAI Capital Management | History | New | 21 | 0 | — | — | — | +21 | New | Q1 2026 | May 15, 2026 |
| Sunbelt Securities, Inc. | History | New | 13 | 0 | — | — | — | +13 | New | Q1 2026 | May 15, 2026 |
| Allworth Financial LP | History | Reduced | 5 | 0 | — | — | — | -10 | -66.67% | Q1 2026 | May 14, 2026 |
| Arax Advisory Partners | History | New | 5 | 0 | — | — | — | +5 | New | Q1 2026 | May 13, 2026 |
| Caitong International Asset Management Co., Ltd | History | New | 2 | 0 | — | — | — | +2 | New | Q1 2026 | May 11, 2026 |