Montauk RenewablesMNTK
13F holders, Q2 2025 (June 30)86holders −7
13new positions
20sold out
5famous investors
$2.22avg. 13F price*
At the end of Q2 2025, 86 institutions reported holding Montauk Renewables Inc. (MNTK) in their 13F filings, down 7 from Q1 2025. 13 opened new positions and 20 sold out. The largest holders were BlackRock, Inc. ($9.7M), Vanguard Group Inc. ($8.8M) and Geode Capital Management, LLC ($3.7M). 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 Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 13 | $1.0M |
| Exits | 20 | $1.2M |
All 13F filers, Q1 2025 → Q2 2025: 1,233,892 shares bought and 2,024,010 shares sold, net −790,118 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 86 holders
| BlackRock, Inc. | 0.00% | Reduce -3.9% | 4,376,214 | $9.7M |
| Vanguard Group Inc. | 0.00% | Add +3.6% | 3,974,994 | $8.8M |
| Geode Capital Management, LLC | 0.00% | Reduce -0.0% | 1,677,787 | $3.7M |
| Baader Bank Aktiengesellschaft | 0.31% | No change | 1,605,000 | $3.6M |
| State Street Corp. | 0.00% | Reduce -6.2% | 1,362,613 | $3.0M |
| Dimensional Fund Advisors LP | 0.00% | Add +3.6% | 982,269 | $2.2M |
| American Century Companies Inc. | 0.00% | Reduce -6.9% | 955,111 | $2.1M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +3.0% | 524,113 | $1.2M |
| Northern Trust Corp. | 0.00% | Reduce -10.9% | 516,917 | $1.1M |
| Hosking Partners LLP | 0.04% | Reduce -48.0% | 395,731 | $879K |
| First Trust Advisors LP | 0.00% | Reduce -6.0% | 355,551 | $789K |
| Renaissance Technologies | 0.00% | Add +21.0% | 344,213 | $764K |
| Bank of New York Mellon Corp | 0.00% | Add +15.3% | 272,890 | $606K |
| Morgan Stanley | 0.00% | Reduce -19.0% | 253,861 | $564K |
| Gsa Capital Partners LLP | 0.04% | New | 243,661 | $541K |
| Storebrand Asset Management As | 0.00% | Reduce -7.4% | 218,020 | $484K |
| Millennium Management | 0.00% | Add +843.9% | 216,078 | $480K |
| JTC Employer Solutions Trustee Ltd | 0.04% | No change | 197,859 | $446K |
| D. E. Shaw & Co. | 0.00% | Reduce -5.2% | 180,483 | $401K |
| Barclays PLC | 0.00% | Reduce -19.3% | 156,759 | $348K |
| Nuveen, LLC | 0.00% | Reduce -19.2% | 138,750 | $308K |
| Susquehanna International Group, LLP | 0.00% | Add +26.5% | 112,473 | $250K |
| Jane Street Group, LLC | 0.00% | Add +6.5% | 107,351 | $244K |
| Rhumbline Advisers | 0.00% | Add +12.6% | 105,881 | $235K |
| Goldman Sachs Group Inc. | 0.00% | Reduce -35.0% | 92,588 | $206K |
| Rathbones Group PLC | 0.00% | Add +27.1% | 92,000 | $204K |
| Alliancebernstein L.P. | 0.00% | Add +6.4% | 91,220 | $203K |
| UBS Group AG | 0.00% | Reduce -39.6% | 83,430 | $185K |
| Citadel Advisors | 0.00% | New | 73,543 | $163K |
| T. Rowe Price Associates Inc. | 0.00% | Add +9.2% | 71,876 | $160K |
| Royal Bank of Canada | 0.00% | Add +12059.6% | 68,945 | $153K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | Reduce -32.0% | 65,823 | $146K |
| JPMorgan Chase & Co. | 0.00% | Add +25.1% | 64,772 | $144K |
| Deutsche Bank AG | 0.00% | Reduce -12.2% | 58,073 | $129K |
| Marshall Wace, LLP | 0.00% | Add +158.8% | 56,901 | $126K |
| Russell Investments Group, Ltd. | 0.00% | Reduce -43.2% | 51,946 | $116K |
| MetLife Investment Management, LLC | 0.00% | Add +613.7% | 44,434 | $99K |
| Wells Fargo & Company | 0.00% | Add +31.2% | 41,387 | $92K |
| STRS Ohio | 0.00% | No change | 40,000 | $89K |
| Abc Arbitrage SA | 0.01% | Reduce -64.6% | 38,167 | $85K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -4.3% | 37,737 | $84K |
| Bank of America Corp. | 0.00% | Reduce -16.9% | 34,495 | $77K |
| Intech Investment Management LLC | 0.00% | Reduce -66.2% | 33,858 | $75K |
| Arrowstreet Capital, Limited Partnership | 0.00% | New | 32,288 | $72K |
| Two Sigma Securities, LLC | 0.01% | New | 31,568 | $70K |
| Citigroup Inc. | 0.00% | Reduce -49.3% | 29,785 | $66K |
| Los Angeles Capital Management LLC | 0.00% | New | 29,205 | $65K |
| AQR Capital Management | 0.00% | Reduce -2.1% | 28,884 | $64K |
| Andina Capital Management, LLC | 0.04% | Add +113.6% | 28,630 | $64K |
| Squarepoint Ops LLC | 0.00% | Reduce -15.5% | 26,835 | $60K |
| Brevan Howard Capital Management LP | 0.00% | Add +68.8% | 26,774 | $59K |
| HRT Financial LP | 0.00% | New | 26,234 | $58K |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -9.9% | 23,002 | $51K |
| Voya Investment Management LLC | 0.00% | Add +12.4% | 21,748 | $48K |
| Invesco Ltd. | 0.00% | Reduce -47.7% | 20,777 | $46K |
| State Board of Administration of Florida Retirement System | 0.00% | No change | 19,080 | $42K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +27.6% | 17,053 | $38K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 16,326 | $36K |
| Neuberger Berman Group LLC | 0.00% | New | 16,112 | $36K |
| Corient Private Wealth LP | 0.00% | New | 16,000 | $36K |
| ProShare Advisors LLC | 0.00% | Reduce -3.4% | 13,798 | $31K |
| Nisa Investment Advisors, LLC | 0.00% | Add +799.7% | 11,696 | $26K |
| N.E.W. Advisory Services LLC | 0.00% | No change | 10,000 | $22K |
| BNP Paribas Financial Markets | 0.00% | Add +61.6% | 6,852 | $15K |
| Shell Asset Management Co. | 0.00% | Reduce -45.6% | 6,794 | $15K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 6,625 | $15K |
| Legal & General Group Plc | 0.00% | Reduce -88.7% | 6,061 | $13K |
| California State Teachers Retirement System | 0.00% | Reduce -90.1% | 4,782 | $11K |
| Meeder Asset Management Inc. | 0.00% | Add +69.0% | 4,199 | $9K |
| New York State Common Retirement Fund | 0.00% | No change | 3,365 | $7K |
| Cwm, LLC | 0.00% | Reduce -19.0% | 3,309 | $7K |
| Amalgamated Bank | 0.00% | No change | 2,235 | $5K |
| Private Wealth Management Group, LLC | 0.00% | New | 1,628 | $4K |
| Sterling Capital Management LLC | 0.00% | Add +2054.4% | 1,465 | $3K |
| FMR LLC | 0.00% | Add +68.4% | 1,366 | $3K |
| Towarzystwo Funduszy Inwestycyjnych Pzu SA | 0.00% | No change | 1,200 | $3K |
| GAMMA Investing LLC | 0.00% | New | 901 | $2K |
| Physician Wealth Advisors, Inc. | 0.00% | New | 452 | $1K |
| PNC Financial Services Group, Inc. | 0.00% | New | 435 | $966 |
| EverSource Wealth Advisors, LLC | 0.00% | Add +500.0% | 174 | $386 |
| SBI Securities Co., Ltd. | 0.00% | No change | 68 | $151 |
| Farther Finance Advisors, LLC | 0.00% | No change | 60 | $133 |
| True Wealth Design, LLC | 0.00% | Add +138.1% | 50 | $111 |
| Allworth Financial LP | 0.00% | New | 4 | $9 |
| Simplex Trading, LLC | 0.00% | Reduce -98.0% | 114 | $0 |
| Covestor Ltd | 0.00% | Reduce -4.2% | 23 | $0 |
"% of holder's portfolio" is MNTK's weight in each manager's 13F, not the share of Montauk Renewables Inc. the manager owns.