Institutional shares held 73.6 Million
249K calls
199K puts
Total value of holdings $50.8B
$172M calls
$137M puts
Market Cap $57.4B
83,253,696 Shares Out.
Institutional ownership 88.42%
# of Institutions 1,452


Latest Institutional Activity in IDXX

Top Purchases

Q3 2025
Jpmorgan Chase & CO Shares Held: 870K ($600M)
Q3 2025
Cibc Private Wealth Group, LLC Shares Held: 371K ($256M)
Q3 2025
Zurich Insurance Group LTD Shares Held: 225K ($155M)
Q3 2025
Principal Financial Group Inc Shares Held: 1.32M ($908M)
Q3 2025
Invesco Ltd. Shares Held: 1.32M ($911M)

Top Sells

Q3 2025
Cibc Bancorp Usa Inc. Shares Held: 14K ($9.65M)
Q3 2025
Generation Investment Management LLP Shares Held: 260K ($180M)
Q3 2025
Select Equity Group, L.P. Shares Held: 282K ($195M)
Q3 2025
Vontobel Holding Ltd. Shares Held: 147K ($102M)
Q3 2025
William Blair Investment Management, LLC Shares Held: 459K ($317M)

About IDXX

IDEXX Laboratories, Inc. develops, manufactures, and distributes products and services primarily for the companion animal veterinary, livestock and poultry, dairy, and water testing markets worldwide. The company operates through CAG; Water Quality Products; LPD; and Other segments. It provides point-of-care veterinary diagnostic products, including instruments, consumables, and rapid assay test kits; veterinary reference laboratory diagnostic and consulting services; practice management and diagnostic imaging systems and services for veterinarians; and health monitoring, biological materials testing, and laboratory animal diagnostic instruments and services for biomedical research community. The company also offers diagnostic and health-monitoring products for livestock, poultry, and dairy; products that test water for various microbiological contaminants; and point-of-care electrolytes and blood gas analyzers and SARS-CoV-2 RT-PCR that are used in the human point-of-care medical diagnostics market; in-clinic chemistry, blood and urine chemistry, hematology, and SediVue Dx analyzers; SNAP rapid assays test kits. In addition, it provides Colilert, Colilert-18, and Colisure tests, which detect the presence of total coliforms and E. coli in water; Enterolert, Pseudalert, Filta-Max and Filta-Max xpress, Legiolert, and Quanti-Tray products; veterinary software and services for independent veterinary clinics and corporate groups. The company markets its products through marketing, customer service, sales, and technical service groups, as well as through independent distributors and other resellers. IDEXX Laboratories, Inc. was incorporated in 1983 and is headquartered in Westbrook, Maine.


Insider Transactions at IDXX

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
107K Shares
From 19 Insiders
Grant, award, or other acquisition 743 shares
Exercise of conversion of derivative security 106K shares
Bona fide gift 259 shares
Sell / Disposition
89.7K Shares
From 22 Insiders
Payment of exercise price or tax liability 5.7K shares
Open market or private sale 82.7K shares
Bona fide gift 1.31K shares

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