12 insiders reported 48 Form 4 transactions for Core Laboratories Inc. /DE/ (CLB) over the past 18 months (most recent 2026-08-04). Recent activity: Tattoli Mark Damian (SVP, Gen Counsel & Secretary) Sell 99 shares, Bruno Lawrence (Chairman and CEO) Buy 5,000 shares, Teo Sow Hang (CAO & Treasurer) Sell 108 shares, Tattoli Mark Damian (SVP, Gen Counsel & Secretary) Buy 250 shares, Teo Sow Hang (CAO & Treasurer) Buy 240 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-04 | Tattoli Mark Damian | SVP, Gen Counsel & Secretary | Sell | 99 | $1,053 |
| 2026-08-04 | Bruno Lawrence | Chairman and CEO | Buy | 5,000 | $53,900 |
| 2026-08-04 | Teo Sow Hang | CAO & Treasurer | Sell | 108 | $1,149 |
| 2026-08-04 | Tattoli Mark Damian | SVP, Gen Counsel & Secretary | Buy | 250 | $0 |
| 2026-08-04 | Teo Sow Hang | CAO & Treasurer | Buy | 240 | $0 |
| 2026-08-04 | Teo Sow Hang | CAO & Treasurer | Sell | 90 | $958 |
| 2026-08-04 | Teo Sow Hang | CAO & Treasurer | Buy | 200 | $0 |
| 2026-05-04 | Tattoli Mark Damian | SVP, Gen Counsel & Secretary | Sell | 97 | $1,365 |
| 2026-05-04 | Tattoli Mark Damian | SVP, Gen Counsel & Secretary | Buy | 250 | $0 |
| 2026-04-08 | Murray Katherine | Director | Buy | 8,069 | $0 |
| 2026-04-07 | Carnes Martha Z. | Director | Buy | 8,069 | $0 |
| 2026-04-07 | MARTINOVICH ROBERT F | Director | Buy | 8,069 | $0 |
| 2026-04-07 | ANASTASIO CURT | Director | Buy | 8,069 | $0 |
| 2026-04-07 | Klingensmith Harvey Robert | Director | Buy | 8,069 | $0 |
| 2026-04-07 | Temeng Kwaku | Director | Buy | 8,069 | $0 |
| 2026-01-05 | Gresham Gwendolyn | SVP | Sell | 19,301 | $309,395 |
| 2026-01-05 | Gresham Gwendolyn | SVP | Buy | 24,952 | $0 |
| 2026-01-05 | Hill Christopher Scott | SVP & CFO | Sell | 32,152 | $515,397 |
| 2026-01-05 | Hill Christopher Scott | SVP & CFO | Buy | 61,417 | $0 |
| 2026-01-05 | Bruno Lawrence | Chairman and CEO | Sell | 112,681 | $1.8M |
| 2026-01-05 | Bruno Lawrence | Chairman and CEO | Buy | 180,722 | $0 |
| 2026-01-05 | Tattoli Mark Damian | SVP, Gen Counsel & Secretary | Sell | 14,310 | $229,389 |
| 2026-01-05 | Tattoli Mark Damian | SVP, Gen Counsel & Secretary | Buy | 24,952 | $0 |
| 2025-12-02 | Teo Sow Hang | CAO & Treasurer | Sell | 340 | $5,233 |
| 2025-12-02 | Teo Sow Hang | CAO & Treasurer | Buy | 864 | $0 |
Source: SEC Form 4 filings · as of 2026-08-04