CLB

Core Laboratories Inc.

A specialist oilfield services company that runs laboratories to analyze rock cores, fluid, and gas samples pulled from underground reservoirs, helping oil and gas producers understand what lies beneath their wells and how to get more out of them. Founded in Dallas in 1936, Core Lab is credited with turning core analysis into a commercial service for the industry. Its name comes straight from that job—"core" being the cylindrical rock samples drilled out of the earth that its scientists study.

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2026Q2

2 buys1 sell

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2026Q1

2 sells

Ariel FundTRIM

-798.9K shares(-12.9%)

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Ariel InvestmentsTRIM

-490.6K shares(-3.6%)

Ariel InvestmentsTRIM

-490.6K shares(-3.6%)

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