Montauk Renewables, Inc.
MNTK- Exchange
- Nasdaq
- Industry
- Gas & Other Services Combined
- SEC CIK
- 0001826600
No open-market purchases or sales by Montauk Renewables, Inc. insiders were filed in the last 90 days; 90 institutions reported holding it in 13F filings for Q2 2026, worth $33.3M in total; no superinvestor holds it.
13F holders, Q3 2025
Institutional positions in Montauk Renewables, Inc. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 91
- +5 vs. Q2 2025
- Shares held
- 20.8M
- −159.2K (−0.8%) vs. Q2 2025
- Total value
- $41.7M
- −$4.72M (−10.2%) vs. Q2 2025
- New holders
- 13
- 25 more added
- Sold out
- 8
- 33 more reduced
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting MNTK on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 90 | $33.3M |
| Q1 2026 | 94 | $24.0M |
| Q4 2025 | 83 | $33.3M |
| Q3 2025 | 91 | $41.7M |
| Q2 2025 | 86 | $46.4M |
| Q1 2025 | 93 | $45.4M |
| Q4 2024 | 96 | $88.6M |
| Q3 2024 | 95 | $115.6M |
| Q2 2024 | 111 | $130.7M |
| Q1 2024 | 114 | $98.2M |
| Q4 2023 | 105 | $212.1M |
| Q3 2023 | 95 | $209.4M |
| Q2 2023 | 93 | $176.1M |
| Q1 2023 | 94 | $189.0M |
| Q4 2022 | 97 | $268.3M |
| Q3 2022 | 90 | $393.4M |
| Q2 2022 | 76 | $209.0M |
| Q1 2022 | 47 | $156.3M |
| Q4 2021 | 26 | $126.2M |
| Q3 2021 | 20 | $70.1M |
| Q2 2021 | 20 | $21.2M |
| Q1 2021 | 24 | $42.3M |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Montauk Renewables, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Covestor Ltd | 23 | $0 | 0.00% | 00.0% | Unchanged |
| Bessemer Group Inc | 90 | $0 | 0.00% | +90 | New |
| SBI Securities Co., Ltd. | 18 | $36 | 0.00% | −50−73.5% | Reduced |
| Essential Partners LLC | 21 | $42 | 0.00% | +21 | New |
| Farther Finance Advisors, LLC | 60 | $121 | 0.00% | 00.0% | Unchanged |
| True Wealth Design, LLC | 92 | $185 | 0.00% | +42+84.0% | Added |
| The PNC Financial Services Group, Inc. | 145 | $291 | 0.00% | −290−66.7% | Reduced |
| Versant Capital Management, Inc | 152 | $306 | 0.00% | +152 | New |
| EverSource Wealth Advisors, LLC | 155 | $311 | 0.00% | −19−10.9% | Reduced |
| SRS Capital Advisors, Inc. | 158 | $318 | 0.00% | +158 | New |
| Deutsche Bank AG | 224 | $450 | 0.00% | −57,849−99.6% | Reduced |
| UMA Financial Services, Inc. | 452 | $909 | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 930 | $1.00K | 0.00% | +816+715.8% | Added |
| Optiver Holding B.V. | 1,084 | $2.18K | 0.00% | +1,084 | New |
| Towarzystwo Funduszy Inwestycyjnych Pzu SA | 1,200 | $2.41K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 1,438 | $3.00K | 0.00% | −1,871−56.5% | Reduced |
| Private Wealth Management Group, LLC | 1,628 | $3.27K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 1,646 | $3.31K | 0.00% | +280+20.5% | Added |
| Amalgamated Bank | 2,235 | $4.00K | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 2,578 | $5.18K | 0.00% | +1,677+186.1% | Added |
| New York State Common Retirement Fund | 3,365 | $6.76K | 0.00% | 00.0% | Unchanged |
| Sterling Capital Management LLC | 3,689 | $7.42K | 0.00% | +2,224+151.8% | Added |
| Meeder Asset Management Inc | 4,199 | $8.44K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 4,785 | $9.62K | 0.00% | +3+0.1% | Added |
| Legal & General Group Plc | 6,061 | $12.2K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 6,625 | $13.3K | 0.00% | 00.0% | Unchanged |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 8,835 | $17.8K | 0.00% | −56,988−86.6% | Reduced |
| Acadian Asset Management LLC | 10,378 | $20.0K | 0.00% | +10,378 | New |
| N.E.W. Advisory Services LLC | 10,000 | $20.1K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 10,032 | $20.2K | 0.00% | −7,021−41.2% | Reduced |
| Two Sigma Advisers, LP | 10,300 | $20.7K | 0.00% | +10,300 | New |
| CI Private Wealth, LLC | 11,000 | $22.1K | 0.00% | −5,000−31.3% | Reduced |
| ProShare Advisors LLC | 11,506 | $23.1K | 0.00% | −2,292−16.6% | Reduced |
| Nisa Investment Advisors, LLC | 11,800 | $23.7K | 0.00% | +104+0.9% | Added |
| BNP Paribas Arbitrage, SA | 13,175 | $26.5K | 0.00% | +6,323+92.3% | Added |
| Engineers Gate Manager LP | 13,626 | $27.4K | 0.00% | +13,626 | New |
| Citigroup Inc | 13,690 | $27.5K | 0.00% | −16,095−54.0% | Reduced |
| Voya Investment Management LLC | 13,694 | $27.5K | 0.00% | −8,054−37.0% | Reduced |
| Virtu Financial LLC | 14,151 | $28.0K | 0.00% | +14,151 | New |
| Neuberger Berman Group LLC | 14,622 | $29.4K | 0.00% | −1,490−9.2% | Reduced |
| Quadrature Capital Ltd | 15,707 | $31.7K | 0.00% | +15,707 | New |
| Police & Firemen's Retirement System of New Jersey | 16,326 | $32.8K | 0.00% | 00.0% | Unchanged |
| AQR Capital Management LLC | 16,478 | $33.1K | 0.00% | −12,406−43.0% | Reduced |
| Two Sigma Investments, LP | 16,955 | $34.1K | 0.00% | +16,955 | New |
| Squarepoint Ops LLC | 17,997 | $36.2K | 0.00% | −8,838−32.9% | Reduced |
| Susquehanna International Group, LLP | 21,845 | $43.9K | 0.00% | −90,628−80.6% | Reduced |
| Manufacturers Life Insurance Company, The | 22,282 | $44.8K | 0.00% | −720−3.1% | Reduced |
| Invesco Ltd. | 23,001 | $46.2K | 0.00% | +2,224+10.7% | Added |
| R Squared Ltd | 24,491 | $49.2K | 0.02% | +24,491 | New |
| XTX Topco Ltd | 25,178 | $50.6K | 0.00% | +25,178 | New |
| Los Angeles Capital Management LLC | 29,205 | $58.7K | 0.00% | 00.0% | Unchanged |
| Bank of America Corp | 30,737 | $61.8K | 0.00% | −3,758−10.9% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 32,028 | $64.4K | 0.00% | −5,709−15.1% | Reduced |
| Arrowstreet Capital, Limited Partnership | 32,288 | $64.9K | 0.00% | 00.0% | Unchanged |
| Andina Capital Management, LLC | 32,465 | $65.3K | 0.04% | +3,835+13.4% | Added |
| Price T Rowe Associates Inc | 33,876 | $69.0K | 0.00% | −38,000−52.9% | Reduced |
| STRS Ohio | 40,000 | $80.4K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 39,803 | $81.0K | 0.00% | −29,142−42.3% | Reduced |
| Two Sigma Securities, LLC | 47,887 | $96.3K | 0.01% | +16,319+51.7% | Added |
| Wells Fargo & Company | 49,404 | $99.3K | 0.00% | +8,017+19.4% | Added |
| Russell Investments Group, Ltd. | 51,423 | $103.3K | 0.00% | −523−1.0% | Reduced |
| Intech Investment Management LLC | 56,734 | $114.0K | 0.00% | +22,876+67.6% | Added |
| UBS Group AG | 72,527 | $145.8K | 0.00% | −10,903−13.1% | Reduced |
| Rathbone Brothers plc | 92,000 | $184.9K | 0.00% | 00.0% | Unchanged |
| Alliancebernstein L.P. | 97,520 | $196.0K | 0.00% | +6,300+6.9% | Added |
| Jane Street Group, LLC | 98,323 | $197.1K | 0.00% | −9,028−8.4% | Reduced |
| Rhumbline Advisers | 125,712 | $252.7K | 0.00% | +19,831+18.7% | Added |
| Storebrand Asset Management AS | 131,861 | $265.0K | 0.00% | −86,159−39.5% | Reduced |
| Nuveen, LLC | 138,750 | $278.9K | 0.00% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 165,759 | $333.2K | 0.00% | +73,171+79.0% | Added |
| JPMorgan Chase & Co | 177,855 | $357.5K | 0.00% | +113,083+174.6% | Added |
| JTC Employer Solutions Trusteee Ltd | 197,859 | $400.0K | 0.03% | 00.0% | Unchanged |
| Millennium Management LLC | 201,735 | $405.5K | 0.00% | −14,343−6.6% | Reduced |
| Citadel Advisors LLC | 204,707 | $411.5K | 0.00% | +131,164+178.4% | Added |
| Gsa Capital Partners LLP | 212,504 | $427.0K | 0.04% | −31,157−12.8% | Reduced |
| D. E. Shaw & Co., Inc. | 223,277 | $448.8K | 0.00% | +42,794+23.7% | Added |
| Morgan Stanley | 237,081 | $476.5K | 0.00% | −16,780−6.6% | Reduced |
| Barclays PLC | 247,656 | $497.8K | 0.00% | +90,897+58.0% | Added |
| Bank of New York Mellon Corp | 265,973 | $534.6K | 0.00% | −6,917−2.5% | Reduced |
| Renaissance Technologies LLC | 336,400 | $676.2K | 0.00% | −7,813−2.3% | Reduced |
| First Trust Advisors LP | 337,560 | $678.5K | 0.00% | −17,991−5.1% | Reduced |
| Hosking Partners LLP | 395,948 | $795.9K | 0.03% | +217+0.1% | Added |
| Northern Trust Corp | 527,234 | $1.06M | 0.00% | +10,317+2.0% | Added |
| Charles Schwab Investment Management Inc | 545,009 | $1.10M | 0.00% | +20,896+4.0% | Added |
| American Century Companies Inc | 955,111 | $1.92M | 0.00% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 976,038 | $1.96M | 0.00% | −6,231−0.6% | Reduced |
| State Street Corp | 1,393,303 | $2.80M | 0.00% | +30,690+2.3% | Added |
| Baader Bank INC | 1,605,000 | $3.23M | 0.27% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 1,687,618 | $3.39M | 0.00% | +9,831+0.6% | Added |
| Vanguard Group Inc | 3,951,495 | $7.94M | 0.00% | −23,499−0.6% | Reduced |
| BlackRock, Inc. | 4,266,765 | $8.58M | 0.00% | −109,449−2.5% | Reduced |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −56,901−100.0% | Sold out |
| MetLife Investment Management | 0 | $0 | 0.00% | −44,434−100.0% | Sold out |
| Abc Arbitrage SA | 0 | $0 | 0.00% | −38,167−100.0% | Sold out |
| Brevan Howard Capital Management LP | 0 | $0 | 0.00% | −26,774−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −26,234−100.0% | Sold out |
| State Board of Administration of Florida Retirement System | 0 | $0 | 0.00% | −19,080−100.0% | Sold out |
| Shell Asset Management Co | 0 | $0 | 0.00% | −6,794−100.0% | Sold out |
| Allworth Financial LP | 0 | $0 | 0.00% | −4−100.0% | Sold out |