Copelyn John A (CIK 1833521) reported 1 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-05-13). Recent activity: Buy MNTK (17,506 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-13 | Montauk Renewables, Inc. (MNTK) | Director | Buy | 17,506 | $25,384 |
来源：SEC Form 4 申报文件 · 截至 2026-05-13