Carnes Martha Z. (CIK 1678397) reported 2 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-04-07). Recent activity: Buy CLB (8,069 shares), Buy MTRX (7,986 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-07 | Core Laboratories Inc. /DE/ (CLB) | Director | Buy | 8,069 | $0 |
| 2025-11-05 | MATRIX SERVICE CO (MTRX) | Director | Buy | 7,986 | $0 |
来源：SEC Form 4 申报文件 · 截至 2026-04-07