Chamarthi Mamatha (CIK 1737929) reported 2 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2025-07-16). Recent activity: Buy CHX (2,771 shares), Sell CHX (36,696 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2025-07-16 | ChampionX Corp (CHX) | Director | Buy | 2,771 | $0 |
| 2025-07-16 | ChampionX Corp (CHX) | Director | Sell | 36,696 | $0 |
Source: SEC Form 4 filings · as of 2025-07-16