IDEXX LABORATORIES INC (IDXX) Institutional Ownership and Insiders Activity

IDEXX LABORATORIES INC (IDXX) is widely held by institutional investors, with 8 tracked firms reporting positions valued at approximately $1.54B based on SEC Form 13F filings for the quarter ended March 31, 2026.

Fundsmith is the largest disclosed holder, reporting approximately $823.61M in IDXX holdings in its latest filing.

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