As of June 02, 2026, Core Laboratories's top three insider holders are Lawrence Bruno (Chairman And Ceo, 370.12K shares), Christopher Scott Hill (Svp Cfo, 142.35K shares), Martha Z. Carnes (Director, 54.40K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Curt Anastasio | - | 23,805 | 0 | 07 Apr, 2026 |
| Christopher Scott Hill | Svp Cfo | 142,354 | 0 | 05 Jan, 2026 |
| Michael Straughen | - | 29,186 | 0 | 02 Apr, 2025 |
| Martha Z. Carnes | - | 54,397 | 0 | 07 Apr, 2026 |
| Lawrence Bruno | Chairman And Ceo | 370,119 | 0 | 05 Jan, 2026 |
| Kevin Daniels | Cao Treasurer | 13,115 | 0 | 08 Jan, 2024 |
| Harvey Robert Klingensmith | - | 50,031 | 0 | 07 Apr, 2026 |
| Gwendolyn Gresham | Svp | 52,527 | 0 | 05 Jan, 2026 |
| Kwaku Temeng | - | 33,597 | 0 | 07 Apr, 2026 |
| Mark Damian Tattoli | Svp, Gen Counsel Secretary | 41,671 | 0 | 05 Jan, 2026 |
| Katherine Murray | - | 29,290 | 0 | 08 Apr, 2026 |
| Sow Hang Teo | Cao Treasurer | 8,765 | 0 | 02 Dec, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 01 Apr, 2026 | Katherine Murray | Common Stock | A | 8,069 | $0.00 | 29,290 | D | M |
| 01 Apr, 2026 | Katherine Murray | Restricted Shares | A | 7,895 | $0.00 | 7,895 | D | A |
| 01 Apr, 2026 | Katherine Murray | Restricted Shares | D | 8,069 | $0.00 | 0 | D | M |
| 01 Apr, 2026 | Martha Z. Carnes | Common Stock | A | 8,069 | $0.00 | 54,397 | D | M |
| 01 Apr, 2026 | Kwaku Temeng | Common Stock | A | 8,069 | $0.00 | 33,597 | D | M |
| 01 Apr, 2026 | Harvey Robert Klingensmith | Common Stock | A | 8,069 | $0.00 | 50,031 | D | M |
| 01 Apr, 2026 | Curt Anastasio | Common Stock | A | 8,069 | $0.00 | 23,805 | D | M |
| 01 Apr, 2026 | Martha Z. Carnes | Restricted Shares | A | 7,895 | $0.00 | 7,895 | D | A |
| 01 Apr, 2026 | Curt Anastasio | Restricted Shares | A | 7,895 | $0.00 | 7,895 | D | A |
| 01 Apr, 2026 | Harvey Robert Klingensmith | Restricted Shares | A | 7,895 | $0.00 | 7,895 | D | A |
| 01 Apr, 2026 | Kwaku Temeng | Restricted Shares | A | 7,895 | $0.00 | 7,895 | D | A |
| 01 Apr, 2026 | Curt Anastasio | Restricted Shares | D | 8,069 | $0.00 | 0 | D | M |
| 01 Apr, 2026 | Harvey Robert Klingensmith | Restricted Shares | D | 8,069 | $0.00 | 0 | D | M |
| 01 Apr, 2026 | Martha Z. Carnes | Restricted Shares | D | 8,069 | $0.00 | 0 | D | M |
| 01 Apr, 2026 | Kwaku Temeng | Restricted Shares | D | 8,069 | $0.00 | 0 | D | M |
| 12 Feb, 2026 | Mark Damian Tattoli | Performance Shares | A | 33,490 | $0.00 | 33,490 | D | A |
| 12 Feb, 2026 | Mark Damian Tattoli | Performance Shares | A | 33,490 | $0.00 | 33,490 | D | A |
| 12 Feb, 2026 | Gwendolyn Gresham | Performance Shares | A | 33,490 | $0.00 | 33,490 | D | A |
| 12 Feb, 2026 | Gwendolyn Gresham | Performance Shares | A | 33,490 | $0.00 | 33,490 | D | A |
| 12 Feb, 2026 | Sow Hang Teo | Performance Shares | A | 7,526 | $0.00 | 7,526 | D | A |