CLEAN HARBORS INC (CLH) Institutional Ownership and Insiders Activity

CLEAN HARBORS INC (CLH) is widely held by institutional investors, with 4 tracked firms reporting positions valued at approximately $805.86M based on SEC Form 13F filings for the quarter ended March 31, 2026.

Lone Pine Capital is the largest disclosed holder, reporting approximately $503.20M in CLH holdings in its latest filing.

Institutional ownership among tracked investors remains highly concentrated, with Lone Pine Capital representing the majority of disclosed value.