Montauk Renewables Inc
Ownership
Ownership Structure
Who owns Montauk Renewables Inc (MNTK)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 46.2% of the shares are freely tradable; institutional investors hold 17.3%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 2.96 | 4,218,997 | -2.4 | 03/31/2026 |
| Vanguard Capital Management, LLC | 1.89 | 2,688,714 | +0.0 | 03/31/2026 |
| Geode Capital Management, LLC | 1.24 | 1,759,278 | +2.0 | 03/31/2026 |
| Baader Bank INC | 1.13 | 1,605,000 | +0.0 | 06/30/2026 |
| State Street Corp | 0.96 | 1,365,473 | -1.5 | 03/31/2026 |
| Barclays PLC | 0.73 | 1,038,917 | +849.9 | 03/31/2026 |
| American Century Companies Inc | 0.67 | 950,442 | -0.4 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Investec FR Dynamic Equity B | 3.64 | 5,179,997 | +2.2 | 06/30/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 1.33 | 1,900,119 | +0.0 | 07/31/2026 |
| iShares Russell 2000 ETF | 1.17 | 1,663,947 | -0.6 | 08/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: September 21, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.