Heinlein Matthew Ian (CIK 2137624) reported 3 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-06-12). Recent activity: Buy WHK (5,584 shares), Buy WHK (100 shares), Sell WHK (100 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-06-12 | WhiteHawk Minerals Corp. (WHK) | See Remarks | Buy | 5,584 | $0 |
| 2026-06-12 | WhiteHawk Minerals Corp. (WHK) | See Remarks | Buy | 100 | $0 |
| 2026-06-12 | WhiteHawk Minerals Corp. (WHK) | See Remarks | Sell | 100 | $0 |
Source: SEC Form 4 filings · as of 2026-06-12