6 insiders reported 6 Form 4 transactions for Montauk Renewables, Inc. (MNTK) over the past 18 months (most recent 2026-05-22). Recent activity: Ciroli John (Chief Legal Officer) Buy 302,982 shares, Van Asdalan Kevin A (Chief Financial Officer) Buy 302,982 shares, Shaw James A (Chief Operating Officer) Buy 282,842 shares, McClain Sean F (President & CEO) Buy 383,183 shares, Copelyn John A (Director) Buy 17,506 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-22 | Ciroli John | Chief Legal Officer | Buy | 302,982 | $0 |
| 2026-05-22 | Van Asdalan Kevin A | Chief Financial Officer | Buy | 302,982 | $0 |
| 2026-05-22 | Shaw James A | Chief Operating Officer | Buy | 282,842 | $0 |
| 2026-05-22 | McClain Sean F | President & CEO | Buy | 383,183 | $0 |
| 2026-05-13 | Copelyn John A | Director | Buy | 17,506 | $25,384 |
| 2025-11-26 | Frank Sharon R | VP Environ Health & Safety | Sell | 2,748 | $4,589 |
Source: SEC Form 4 filings · as of 2026-05-22