Humble Patti A. (CIK 2135878) reported 1 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-05-27). Recent activity: Buy ECVT (9,099 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-27 | Ecovyst Inc. (ECVT) | Director | Buy | 9,099 | $123,837 |
Source: SEC Form 4 filings · as of 2026-05-27