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, Q1 2026
Institutional positions in Montauk Renewables, Inc. as of Mar 31, 2026. 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
- 94
- +12 vs. Q4 2025
- Shares held
- 20.8M
- +4.44M (+27.1%) vs. Q4 2025
- Total value
- $24.0M
- −$3.41M (−12.5%) vs. Q4 2025
- New holders
- 21
- 29 more added
- Sold out
- 9
- 30 more reduced
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Montauk Renewables, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 4,218,997 | $4.85M | 0.00% | −105,289−2.4% | Reduced |
| Vanguard Capital Management LLC | 2,688,714 | $3.09M | 0.00% | +2,688,714 | New |
| Geode Capital Management, LLC | 1,759,278 | $2.02M | 0.00% | +34,345+2.0% | Added |
| Baader Bank INC | 1,605,000 | $1.85M | 0.18% | 00.0% | Unchanged |
| State Street Corp | 1,365,473 | $1.57M | 0.00% | −20,487−1.5% | Reduced |
| Barclays PLC | 1,038,917 | $1.19M | 0.00% | +929,541+849.9% | Added |
| American Century Companies Inc | 954,468 | $1.10M | 0.00% | −643−0.1% | Reduced |
| Dimensional Fund Advisors LP | 736,584 | $847.3K | 0.00% | −95,950−11.5% | Reduced |
| Charles Schwab Investment Management Inc | 520,611 | $598.7K | 0.00% | −24,038−4.4% | Reduced |
| Northern Trust Corp | 505,374 | $581.2K | 0.00% | +39,639+8.5% | Added |
| Vanguard Fiduciary Trust Co | 432,268 | $497.1K | 0.00% | +432,268 | New |
| Hosking Partners LLP | 396,932 | $456.5K | 0.02% | +682+0.2% | Added |
| Vanguard Portfolio Management LLC | 388,919 | $447.3K | 0.00% | +388,919 | New |
| Renaissance Technologies LLC | 354,600 | $407.8K | 0.00% | +11,900+3.5% | Added |
| Goldman Sachs Group Inc | 331,189 | $380.9K | 0.00% | +135,157+68.9% | Added |
| First Trust Advisors LP | 311,950 | $358.7K | 0.00% | −26,269−7.8% | Reduced |
| Gsa Capital Partners LLP | 289,894 | $333.0K | 0.02% | +47,248+19.5% | Added |
| Morgan Stanley | 261,398 | $300.6K | 0.00% | −67,264−20.5% | Reduced |
| Millennium Management LLC | 206,854 | $237.9K | 0.00% | +181,204+706.4% | Added |
| Marshall Wace, LLP | 204,636 | $235.3K | 0.00% | +204,636 | New |
| Bank of New York Mellon Corp | 195,907 | $225.3K | 0.00% | −13,661−6.5% | Reduced |
| JTC Employer Solutions Trusteee Ltd | 197,859 | $217.0K | 0.02% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 162,252 | $193.1K | 0.00% | −9,940−5.8% | Reduced |
| Alliancebernstein L.P. | 97,520 | $162.9K | 0.00% | 00.0% | Unchanged |
| Nuveen, LLC | 139,608 | $160.6K | 0.00% | +858+0.6% | Added |
| D. E. Shaw & Co., Inc. | 118,256 | $136.0K | 0.00% | −74,092−38.5% | Reduced |
| Rathbone Brothers plc | 102,000 | $117.3K | 0.00% | +10,000+10.9% | Added |
| Rhumbline Advisers | 93,078 | $107.0K | 0.00% | −3,630−3.8% | Reduced |
| J. Derek Lewis & Associates Inc. | 85,000 | $97.8K | 0.02% | +85,000 | New |
| Storebrand Asset Management AS | 82,175 | $94.5K | 0.00% | −17,232−17.3% | Reduced |
| Bank of America Corp | 60,707 | $69.8K | 0.00% | +1,558+2.6% | Added |
| Acadian Asset Management LLC | 56,106 | $62.0K | 0.00% | +44,174+370.2% | Added |
| Deutsche Bank AG | 47,007 | $54.1K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 41,867 | $48.1K | 0.00% | −27,189−39.4% | Reduced |
| STRS Ohio | 40,000 | $46.0K | 0.00% | 00.0% | Unchanged |
| AQR Capital Management LLC | 38,351 | $44.1K | 0.00% | +23,794+163.5% | Added |
| Invesco Ltd. | 37,339 | $42.9K | 0.00% | +6,284+20.2% | Added |
| Squarepoint Ops LLC | 35,893 | $41.3K | 0.00% | +35,893 | New |
| Jane Street Group, LLC | 35,576 | $39.5K | 0.00% | −95,111−72.8% | Reduced |
| Price T Rowe Associates Inc | 33,876 | $39.0K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global ETFs Holdings Ltd. | 32,892 | $37.8K | 0.00% | +766+2.4% | Added |
| Arrowstreet Capital, Limited Partnership | 32,288 | $37.1K | 0.00% | 00.0% | Unchanged |
| Russell Investments Group, Ltd. | 31,293 | $35.5K | 0.00% | −1,295−4.0% | Reduced |
| Los Angeles Capital Management LLC | 29,205 | $33.6K | 0.00% | 00.0% | Unchanged |
| Quadrature Capital Ltd | 26,928 | $31.0K | 0.00% | +26,928 | New |
| Wells Fargo & Company | 25,214 | $29.0K | 0.00% | −49,835−66.4% | Reduced |
| Susquehanna International Group, LLP | 24,495 | $28.2K | 0.00% | +8,683+54.9% | Added |
| Vanguard Global Advisers, LLC | 23,853 | $27.4K | 0.00% | +23,853 | New |
| Boyer Financial Services, Inc. | 22,990 | $26.4K | 0.03% | +22,990 | New |
| Manufacturers Life Insurance Company, The | 18,967 | $21.8K | 0.00% | −1,615−7.8% | Reduced |
| Engineers Gate Manager LP | 18,628 | $21.4K | 0.00% | +5,054+37.2% | Added |
| Intech Investment Management LLC | 17,748 | $20.4K | 0.00% | −13,738−43.6% | Reduced |
| Tower Research Capital LLC (TRC) | 17,233 | $19.8K | 0.00% | +11,358+193.3% | Added |
| Neuberger Berman Group LLC | 16,744 | $19.3K | 0.00% | +4,219+33.7% | Added |
| Two Sigma Securities, LLC | 16,469 | $18.9K | 0.00% | −20,824−55.8% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 16,326 | $18.8K | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 15,781 | $18.1K | 0.00% | +8,518+117.3% | Added |
| Prudential Financial Inc | 14,810 | $17.0K | 0.00% | +14,810 | New |
| BNP Paribas Arbitrage, SA | 14,701 | $16.9K | 0.00% | +294+2.0% | Added |
| XTX Topco Ltd | 14,173 | $16.3K | 0.00% | +14,173 | New |
| Voya Investment Management LLC | 13,694 | $15.7K | 0.00% | 00.0% | Unchanged |
| Toroso Investments, LLC | 11,738 | $13.5K | 0.00% | +11,738 | New |
| Point72 Asset Management, L.P. | 10,871 | $12.5K | 0.00% | +453+4.3% | Added |
| N.E.W. Advisory Services LLC | 10,000 | $11.5K | 0.00% | 00.0% | Unchanged |
| Jones Financial Companies LLLP | 9,259 | $11.2K | 0.00% | +9,259 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 7,852 | $9.03K | 0.00% | −472−5.7% | Reduced |
| Ameritas Investment Partners, Inc. | 6,625 | $7.62K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 5,771 | $6.61K | 0.00% | −290−4.8% | Reduced |
| Simplex Trading, LLC | 4,915 | $5.65K | 0.00% | +4,915 | New |
| Advisor Group Holdings, Inc. | 4,000 | $4.60K | 0.00% | +4,000 | New |
| California State Teachers Retirement System | 3,641 | $4.19K | 0.00% | −497−12.0% | Reduced |
| New York State Common Retirement Fund | 3,365 | $3.87K | 0.00% | 00.0% | Unchanged |
| Ninety One SA (PTY) Ltd | 3,110 | $3.42K | 0.00% | +3,110 | New |
| Royal Bank of Canada | 3,008 | $3.00K | 0.00% | +1,006+50.2% | Added |
| CWM, LLC | 2,274 | $2.62K | 0.00% | +1,147+101.8% | Added |
| Sterling Capital Management LLC | 1,846 | $2.12K | 0.00% | −1,299−41.3% | Reduced |
| Towarzystwo Funduszy Inwestycyjnych Pzu SA | 1,200 | $1.38K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 810 | $932 | 0.00% | −8,348−91.2% | Reduced |
| Optiver Holding B.V. | 636 | $731 | 0.00% | −448−41.3% | Reduced |
| GAMMA Investing LLC | 339 | $390 | 0.00% | −5,663−94.4% | Reduced |
| IFP Advisors, Inc | 188 | $216 | 0.00% | +188 | New |
| Essential Partners LLC | 187 | $215 | 0.00% | +165+750.0% | Added |
| The PNC Financial Services Group, Inc. | 133 | $153 | 0.00% | −155−53.8% | Reduced |
| SBI Securities Co., Ltd. | 116 | $133 | 0.00% | +102+728.6% | Added |
| Farther Finance Advisors, LLC | 82 | $93 | 0.00% | +22+36.7% | Added |
| EverSource Wealth Advisors, LLC | 69 | $79 | 0.00% | −54−43.9% | Reduced |
| True Wealth Design, LLC | 57 | $66 | 0.00% | +45+375.0% | Added |
| Rothschild Investment LLC | 25 | $29 | 0.00% | −61−70.9% | Reduced |
| MAI Capital Management | 21 | $25 | 0.00% | +21 | New |
| Sunbelt Securities, Inc. | 13 | $15 | 0.00% | +13 | New |
| SRS Capital Advisors, Inc. | 5 | $7 | 0.00% | +5 | New |
| Allworth Financial LP | 5 | $6 | 0.00% | −10−66.7% | Reduced |
| Caitong International Asset Management Co., Ltd | 2 | $2 | 0.00% | +2 | New |
| Covestor Ltd | 64 | $0 | 0.00% | +42+190.9% | Added |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −200,021−100.0% | Sold out |
| Andina Capital Management, LLC | 0 | $0 | 0.00% | −41,572−100.0% | Sold out |
| R Squared Ltd | 0 | $0 | 0.00% | −28,945−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −26,353−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −23,215−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −16,800−100.0% | Sold out |