Core Laboratories NV (CLB)
Who owns Core Laboratories NV (CLB)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 98.5% of the shares are freely tradable; institutional investors hold 113.7%.
Ownership Structure
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Ariel Investments, LLC | 28.57 | 13,170,388 | -3.6 | 03/31/2026 |
| BlackRock Inc | 15.64 | 7,208,503 | +0.8 | 03/31/2026 |
| Disciplined Growth Investors Inc | 10.71 | 4,937,115 | -4.4 | 03/31/2026 |
| Vanguard Group Inc | 6.68 | 3,079,882 | +1.1 | 12/31/2025 |
| Earnest Partners LLC | 6.63 | 3,055,996 | -5.1 | 03/31/2026 |
| State Street Corp | 4.47 | 2,060,537 | +0.9 | 03/31/2026 |
| CWA Asset Management Group, LLC | 3.78 | 1,741,001 | +179.7 | 03/31/2026 |
| Vanguard Capital Management, LLC | 3.51 | 1,619,863 | +0.0 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Ariel Fund Investor | 11.74 | 5,411,351 | -12.9 | 03/31/2026 |
| iShares Core S&P Small-Cap ETF | 6.16 | 2,839,862 | +0.0 | 05/29/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.