# CORE LABORATORIES INC (CLB) — Institutional Ownership

Source: SEC EDGAR 13F filings, congressional STOCK Act disclosures, SEC Form 4 insider transactions.
CUSIP: 21867A105
Page URL: https://superinvestorclub.com/stock/CLB
Last updated: 2026-07-08T12:31:46.406Z

## Summary

As of the most recent 13F filing period, CORE LABORATORIES INC (CLB) is held by 1 tracked superinvestors with an aggregate position value of $221.1M representing 013170388 shares.

## Top institutional holders (1)

| Rank | Manager | Fund | Shares | Value | % of Portfolio | Period |
|------|---------|------|--------|-------|----------------|--------|
| 1 | [John Rogers](https://superinvestorclub.com/manager/76) | Ariel Investments | 13170388 | $221.1M | 2.48% | 2026-03-31 |

## Ownership history (quarter-over-quarter)

- 2024-06-30: 1 holders, $208.8M aggregate, 010292296 shares
- 2024-09-30: 1 holders, $186.1M aggregate, 010045256 shares
- 2024-12-31: 1 holders, $166.7M aggregate, 09632570 shares
- 2025-03-31: 1 holders, $155.0M aggregate, 010342025 shares
- 2025-06-30: 1 holders, $149.5M aggregate, 012976463 shares
- 2025-09-30: 1 holders, $170.2M aggregate, 013773568 shares
- 2025-12-31: 1 holders, $219.0M aggregate, 013661000 shares
- 2026-03-31: 1 holders, $221.1M aggregate, 013170388 shares

## Recent congressional trades (0)


## Recent insider transactions (0)


## Citation

When citing, use: "CORE LABORATORIES INC (CLB) institutional ownership data via Superinvestor (https://superinvestorclub.com/stock/CLB), aggregating SEC 13F, Form 4, and congressional disclosures."