Montauk RenewablesMNTK
13F holders, Q1 2026 (March 31)94holders +11
17new positions
8sold out
5famous investors
$1.15avg. 13F price*
At the end of Q1 2026, 94 institutions reported holding Montauk Renewables Inc. (MNTK) in their 13F filings, up 11 from Q4 2025. 17 opened new positions and 8 sold out. The largest holders were BlackRock, Inc. ($4.9M), Vanguard Capital Management LLC ($3.1M) and Geode Capital Management, LLC ($2.0M). 5 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio).
- Company
- Montauk Renewables Inc.
- CUSIP
- 61218C103
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 17 | $504K |
| Exits | 8 | $559K |
All 13F filers, Q4 2025 → Q1 2026: 1,945,939 shares bought and 1,020,000 shares sold, net +925,939 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 94 holders
| BlackRock, Inc. | 0.00% | Reduce -2.4% | 4,218,997 | $4.9M |
| Vanguard Capital Management LLC | 0.00% | — | 2,688,714 | $3.1M |
| Geode Capital Management, LLC | 0.00% | Add +2.0% | 1,759,278 | $2.0M |
| Baader Bank Aktiengesellschaft | 0.18% | No change | 1,605,000 | $1.8M |
| State Street Corp. | 0.00% | Reduce -1.5% | 1,365,473 | $1.6M |
| Barclays PLC | 0.00% | Add +849.9% | 1,038,917 | $1.2M |
| American Century Companies Inc. | 0.00% | Reduce -0.1% | 954,468 | $1.1M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -11.5% | 736,584 | $847K |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -4.4% | 520,611 | $599K |
| Northern Trust Corp. | 0.00% | Add +8.5% | 505,374 | $581K |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 432,268 | $497K |
| Hosking Partners LLP | 0.02% | Add +0.2% | 396,932 | $456K |
| Vanguard Portfolio Management LLC | 0.00% | — | 388,919 | $447K |
| Renaissance Technologies | 0.00% | Add +3.5% | 354,600 | $408K |
| Goldman Sachs Group Inc. | 0.00% | Add +69.0% | 331,189 | $381K |
| First Trust Advisors LP | 0.00% | Reduce -7.8% | 311,950 | $359K |
| Gsa Capital Partners LLP | 0.02% | Add +19.5% | 289,894 | $333K |
| Morgan Stanley | 0.00% | Reduce -20.5% | 261,398 | $301K |
| Millennium Management | 0.00% | Add +706.5% | 206,854 | $238K |
| Marshall Wace, LLP | 0.00% | New | 204,636 | $235K |
| Bank of New York Mellon Corp | 0.00% | Reduce -6.5% | 195,907 | $225K |
| JTC Employer Solutions Trustee Ltd | 0.02% | No change | 197,859 | $217K |
| JPMorgan Chase & Co. | 0.00% | Reduce -5.8% | 162,252 | $193K |
| Alliancebernstein L.P. | 0.00% | No change | 97,520 | $163K |
| Nuveen, LLC | 0.00% | Add +0.6% | 139,608 | $161K |
| D. E. Shaw & Co. | 0.00% | Reduce -38.5% | 118,256 | $136K |
| Rathbones Group PLC | 0.00% | Add +10.9% | 102,000 | $117K |
| Rhumbline Advisers | 0.00% | Reduce -3.8% | 93,078 | $107K |
| J. Derek Lewis & Associates Inc. | 0.02% | New | 85,000 | $98K |
| Storebrand Asset Management As | 0.00% | Reduce -17.3% | 82,175 | $95K |
| Bank of America Corp. | 0.00% | Add +2.6% | 60,707 | $70K |
| Acadian Asset Management LLC | 0.00% | Add +370.2% | 56,106 | $62K |
| Deutsche Bank AG | 0.00% | No change | 47,007 | $54K |
| UBS Group AG | 0.00% | Reduce -39.4% | 41,867 | $48K |
| STRS Ohio | 0.00% | No change | 40,000 | $46K |
| AQR Capital Management | 0.00% | Add +163.4% | 38,351 | $44K |
| Invesco Ltd. | 0.00% | Add +20.2% | 37,339 | $43K |
| Squarepoint Ops LLC | 0.00% | New | 35,893 | $41K |
| Jane Street Group, LLC | 0.00% | Reduce -72.8% | 35,576 | $40K |
| T. Rowe Price Associates Inc. | 0.00% | No change | 33,876 | $39K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +2.4% | 32,892 | $38K |
| Arrowstreet Capital, Limited Partnership | 0.00% | No change | 32,288 | $37K |
| Russell Investments Group, Ltd. | 0.00% | Reduce -4.0% | 31,293 | $35K |
| Los Angeles Capital Management LLC | 0.00% | No change | 29,205 | $34K |
| Quadrature Capital Ltd | 0.00% | New | 26,928 | $31K |
| Wells Fargo & Company | 0.00% | Reduce -66.4% | 25,214 | $29K |
| Susquehanna International Group, LLP | 0.00% | Add +54.9% | 24,495 | $28K |
| Vanguard Global Advisers, LLC | 0.00% | — | 23,853 | $27K |
| Boyer Financial Services, Inc. | 0.03% | New | 22,990 | $26K |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -7.8% | 18,967 | $22K |
| Engineers Gate Manager LP | 0.00% | Add +37.2% | 18,628 | $21K |
| Intech Investment Management LLC | 0.00% | Reduce -43.6% | 17,748 | $20K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +193.3% | 17,233 | $20K |
| Neuberger Berman Group LLC | 0.00% | Add +33.7% | 16,744 | $19K |
| Two Sigma Securities, LLC | 0.00% | Reduce -55.8% | 16,469 | $19K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 16,326 | $19K |
| Citigroup Inc. | 0.00% | Add +117.3% | 15,781 | $18K |
| Prudential Financial Inc. | 0.00% | New | 14,810 | $17K |
| BNP Paribas Financial Markets | 0.00% | Add +2.0% | 14,701 | $17K |
| XTX Topco Ltd | 0.00% | New | 14,173 | $16K |
| Voya Investment Management LLC | 0.00% | No change | 13,694 | $16K |
| Tidal Investments LLC | 0.00% | New | 11,738 | $13K |
| Point72 Asset Management | 0.00% | Add +4.3% | 10,871 | $13K |
| N.E.W. Advisory Services LLC | 0.00% | No change | 10,000 | $12K |
| Jones Financial Companies LLLP | 0.00% | New | 9,259 | $11K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | Reduce -5.7% | 7,852 | $9K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 6,625 | $8K |
| Legal & General Group Plc | 0.00% | Reduce -4.8% | 5,771 | $7K |
| Simplex Trading, LLC | 0.00% | New | 4,915 | $6K |
| Osaic Holdings, Inc. | 0.00% | New | 4,000 | $5K |
| California State Teachers Retirement System | 0.00% | Reduce -12.0% | 3,641 | $4K |
| New York State Common Retirement Fund | 0.00% | No change | 3,365 | $4K |
| Ninety One SA (Pty) Ltd | 0.00% | New | 3,110 | $3K |
| Royal Bank of Canada | 0.00% | Add +50.3% | 3,008 | $3K |
| Cwm, LLC | 0.00% | Add +101.8% | 2,274 | $3K |
| Sterling Capital Management LLC | 0.00% | Reduce -41.3% | 1,846 | $2K |
| Towarzystwo Funduszy Inwestycyjnych Pzu SA | 0.00% | No change | 1,200 | $1K |
| FMR LLC | 0.00% | Reduce -91.2% | 810 | $932 |
| Optiver Holding B.V. | 0.00% | Reduce -41.3% | 636 | $731 |
| GAMMA Investing LLC | 0.00% | Reduce -94.3% | 339 | $390 |
| IFP Advisors, Inc | 0.00% | New | 188 | $216 |
| Essential Partners LLC | 0.00% | Add +750.0% | 187 | $215 |
| PNC Financial Services Group, Inc. | 0.00% | Reduce -53.8% | 133 | $153 |
| SBI Securities Co., Ltd. | 0.00% | Add +728.6% | 116 | $133 |
| Farther Finance Advisors, LLC | 0.00% | Add +36.7% | 82 | $93 |
| EverSource Wealth Advisors, LLC | 0.00% | Reduce -43.9% | 69 | $79 |
| True Wealth Design, LLC | 0.00% | Add +375.0% | 57 | $66 |
| Rothschild Investment LLC | 0.00% | Reduce -70.9% | 25 | $29 |
| MAI Capital Management | 0.00% | New | 21 | $25 |
| Sunbelt Securities, Inc. | 0.00% | New | 13 | $15 |
| Arax Advisory Partners | 0.00% | New | 5 | $7 |
| Allworth Financial LP | 0.00% | Reduce -66.7% | 5 | $6 |
| Caitong International Asset Management Co., Ltd | 0.00% | New | 2 | $2 |
| Covestor Ltd | 0.00% | Add +190.9% | 64 | $0 |
"% of holder's portfolio" is MNTK's weight in each manager's 13F, not the share of Montauk Renewables Inc. the manager owns.