IDEXX LABORATORIES INC (IDXX) Institutional Ownership

IDXX is currently held by 8 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $1.54B based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026.

The largest disclosed holder is Fundsmith, which reported ownership valued at approximately $823.61M in its March 31, 2026 13F filing. Based on current market prices and the latest disclosed share count, Fundsmith's IDXX position is now estimated to be worth approximately $808.38M, representing an estimated loss of -1.85% since the filing period.

Major shareholders tracked on this page include Fundsmith, Polen Capital Management, Fundsmith Investment Services, and other prominent asset managers. Collectively, these investors account for approximately 100% of the total disclosed value among the investors covered in this analysis.

This page tracks institutional holding trends, hedge fund exposure, portfolio concentration, historical 13F filings, and estimated holding performance to help investors analyze smart money sentiment toward IDEXX LABORATORIES INC (IDXX).

Institutional Ownership Trend

Portfolio quarterInstitutional holdersTotal reported valueTotal shares
Q1 20268$1,536,626,7682,734,747
Q4 20257$2,323,047,2823,433,769
Q3 20258$2,875,871,8264,501,357
Q2 20258$2,553,302,0444,760,603
Q1 20258$1,658,937,6953,949,229
Q4 20247$1,494,303,1483,614,317
Q3 20247$1,831,943,7973,626,032
Q2 20247$1,756,429,9673,605,152
Q1 20247$1,937,861,4803,681,002
Q4 20236$1,999,100,7303,601,659
Q3 20237$1,756,583,9064,141,840
Q2 20236$2,031,191,8914,044,346

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