CORE LABORATORIES INC (CLB) Institutional Ownership and Insiders Activity

CORE LABORATORIES INC (CLB) is widely held by institutional investors, with 181 firms reporting positions valued at approximately $611.94M based on SEC Form 13F filings for the quarter ended June 30, 2026.

Ariel Appreciation Fund is the largest disclosed holder, reporting approximately $163.97M in CLB holdings in its latest filing.

Recent insider activity includes 7 tracked Form 4 transactions over the last three months, reflecting ongoing executive and director trading activity.