Real time Form 13D and 13G transaction reports:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
- Shares have beem adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2026-02-17 4:26 pm Sale | 2025-12-31 | 13G | Core Laboratories N.V. CLB | DISCIPLINED GROWTH INVESTORS INC /MN | 5,166,914 11.100% | -802,946 (-13.45%) | Filing History |
| 2026-02-12 4:19 pm Sale | 2025-12-31 | 13G | Core Laboratories N.V. CLB | EARNEST PARTNERS LLC | 3,221,043 6.900% | -506,625 (-13.59%) | Filing History |
| 2025-11-14 3:42 pm Purchase | 2025-09-30 | 13G | Core Laboratories N.V. CLB | DISCIPLINED GROWTH INVESTORS INC /MN | 5,969,860 12.800% | 528,976 (+9.72%) | Filing History |
| 2025-11-14 11:18 am Purchase | 2025-09-30 | 13G | Core Laboratories N.V. CLB | Ariel Investments, LLC | 13,773,568 29.400% | 1,176,364 (+9.34%) | Filing History |
| 2025-10-30 2:56 pm Sale | 2025-09-30 | 13G | Core Laboratories N.V. CLB | The Vanguard Group | 3,047,390 6.490% | -1,431,700 (-31.96%) | Filing History |
| 2025-08-14 5:27 pm Sale | 2025-06-30 | 13G | Core Laboratories N.V. CLB | DISCIPLINED GROWTH INVESTORS INC /MN | 5,440,884 11.600% | -50,838 (-0.93%) | Filing History |
| 2025-07-29 11:22 am Sale | 2025-06-30 | 13G | Core Laboratories N.V. CLB | The Vanguard Group | 4,479,090 9.550% | -885,243 (-16.50%) | Filing History |
| 2025-06-05 5:18 pm Purchase | 2025-05-31 | 13G | Core Laboratories N.V. CLB | Ariel Investments, LLC | 12,597,204 26.900% | 2,551,948 (+25.40%) | Filing History |
| 2025-05-15 4:10 pm Sale | 2025-03-31 | 13G | Core Laboratories N.V. CLB | DISCIPLINED GROWTH INVESTORS INC /MN | 5,491,722 11.700% | -11,929 (-0.22%) | Filing History |
| 2025-04-29 12:13 pm Sale | 2025-03-31 | 13G | Core Laboratories N.V. CLB | BlackRock Inc. BLK | 7,261,751 15.500% | -716,524 (-8.98%) | Filing History |
| 2025-02-14 2:44 pm Sale | 2024-12-31 | 13G | Core Laboratories N.V. CLB | DISCIPLINED GROWTH INVESTORS INC /MN | 5,503,651 11.700% | -149,940 (-2.65%) | Filing History |
| 2024-11-14 5:01 pm Purchase | 2024-09-30 | 13G | Core Laboratories N.V. CLB | DISCIPLINED GROWTH INVESTORS INC /MN | 5,653,591 12.000% | 5,653,591 (New Position) | Filing History |
| 2024-11-13 10:51 am Purchase | 2024-09-30 | 13G | Core Laboratories N.V. CLB | Ariel Investments, LLC | 10,045,256 21.400% | 1,056,857 (+11.76%) | Filing History |
| 2024-02-14 1:17 pm Purchase | 2023-12-31 | 13G | Core Laboratories N.V. CLB | EARNEST PARTNERS LLC | 3,727,668 8.000% | 3,727,668 (New Position) | Filing History |
| 2024-02-14 09:23 am Purchase | 2023-12-31 | 13G | Core Laboratories N.V. CLB | Ariel Investments, LLC | 8,988,399 19.200% | 8,988,399 (New Position) | Filing History |
| 2024-02-13 5:02 pm Purchase | 2023-12-29 | 13G | Core Laboratories N.V. CLB | The Vanguard Group | 5,364,333 11.480% | 98,476 (+1.87%) | Filing History |
| 2024-01-22 2:03 pm Purchase | 2023-12-31 | 13G | Core Laboratories N.V. CLB | BlackRock Inc. BLK | 7,978,275 17.100% | 2,286,499 (+40.17%) | Filing History |
| 2023-06-09 2:15 pm Purchase | 2023-05-31 | 13G | Core Laboratories N.V. CLB | The Vanguard Group | 5,265,857 11.280% | 5,265,857 (New Position) | Filing History |
| 2023-06-08 1:25 pm Purchase | 2023-05-31 | 13G | Core Laboratories N.V. CLB | BlackRock Inc. BLK | 5,691,776 12.200% | 5,691,776 (New Position) | Filing History |