Core Laboratories N.V. (CLB) ownership: Top institutional holder: ARIEL INVESTMENTS, LLC ($221.13M). Insider activity: Net Seller (1 buys, 19 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| ARIEL INVESTMENTS, LLC | 13170388.00 | $221.13M | 2026-03-31 |
| BlackRock, Inc. | 7208503.00 | $121.03M | 2026-03-31 |
| DISCIPLINED GROWTH INVESTORS INC /MN | 4937115.00 | $82.89M | 2026-03-31 |
| EARNEST PARTNERS LLC | 3055996.00 | $51.31M | 2026-03-31 |
| VANGUARD GROUP INC | 3079882.00 | $49.37M | 2025-12-31 |
| STATE STREET CORP | 2060537.00 | $34.60M | 2026-03-31 |
| CWA Asset Management Group, LLC | 1741001.00 | $29.23M | 2026-03-31 |
| BlackRock Fund Advisors | 233123.00 | $27.98M | 2016-12-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-05-01 | |
| Buy | null | 2026-05-01 | |
| Sell | null | 2026-05-01 | |
| Sell | null | 2026-04-01 | |
| Sell | null | 2026-04-01 | |
| Sell | null | 2026-04-01 | |
| Sell | null | 2026-04-01 | |
| Sell | null | 2026-04-01 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.