
What smart money is saying about IDEXX Laboratories, Inc.
6 funds in our archive have pitched IDEXX Laboratories, Inc. — most recently Jensen Quality Growth Fund in June 2026.
IDEXX Laboratories, Inc. is a global enterprise focused on creating, producing, and distributing a wide array of products and services. Its primary client base includes companion animal veterinary practices, the livestock and poultry industries, dairy operations, and water quality testing sectors. The company organizes its operations across several key divisions: the Companion Animal Group (CAG), Water Quality Products, Livestock, Poultry, and Dairy (LPD), and additional segments. For companion animals, IDEXX offers a comprehensive suite of point-of-care veterinary diagnostic tools, such as instruments, consumables, and rapid assay kits. It also provides reference laboratory diagnostic and consultation services, alongside practice management and diagnostic imaging solutions for veterinarians. Furthermore, the company supports the biomedical research community with health monitoring, biological materials testing, and laboratory animal diagnostic instruments and services. In the livestock, poultry, and dairy markets, IDEXX supplies diagnostic and health-monitoring solutions. Its water testing portfolio includes products designed to detect various microbiological contaminants, notably the Colilert, Colilert-18, and Colisure tests for total coliforms and E. coli, as well as Enterolert, Pseudalert, Filta-Max, Filta-Max xpress, Legiolert, and Quanti-Tray products. Beyond these, IDEXX extends its reach to human point-of-care medical diagnostics, offering electrolyte and blood gas analyzers, and SARS-CoV-2 RT-PCR tests. Other key offerings encompass in-clinic chemistry, blood and urine chemistry, hematology, and SediVue Dx analyzers, as well as SNAP rapid assay test kits. Veterinary software and services for both independent clinics and large corporate veterinary groups are also part of its offerings. The company distributes its extensive product and service catalog through its own dedicated marketing, customer service, sales, and technical service teams, supplemented by independent distributors and other resellers. IDEXX Laboratories, Inc. was established in 1983 and maintains its headquarters in Westbrook, Maine.
Get an email when a fund writes about it
Position history
Between Q4 2024 and Q2 2026, 5 fund letters reported a position in IDEXX Laboratories, Inc. — 3 opened or added to the position, 1 trimmed or exited.
| Quarter | Letters | Bought | Sold | Theses |
|---|---|---|---|---|
| Q2 2026 | 5 | 3 | 1 | 1 |
| Q4 2025 | 0 | 0 | 0 | 1 |
| Q2 2025 | 0 | 0 | 0 | 2 |
| Q1 2025 | 0 | 0 | 0 | 1 |
| Q4 2024 | 0 | 0 | 0 | 1 |
Fund activity · 5 positions · 4 moves
- TrimmedFundsmith Equity FundJune 2026
“We have reduced our stakes in IDEXX on valuation grounds and in Microsoft.”
Read the letterIDEXX Laboratories, Inc. - New positionJensen Quality Growth FundJune 2026
“In terms of new additions, we initiated positions in several quality companies, including IDEXX Laboratories (IDXX), Cintas Corporation (CTAS), TJX Companies (TJX), and Amphenol”
Read the letterIDEXX Laboratories, Inc. - New positionBaillie Gifford US Equity GrowthJune 2026
“We have continued to broaden the portfolio's enduring growth exposure with new purchases in IDEXX and Mastercard.”
Read the letterIDEXX Laboratories, Inc. - HoldsBaron Health Care FundJune 2026
Listed in Baron Health Care Fund’s reported holdings.
Read the letterIDEXX Laboratories, Inc. - AddedJensen Quality Mid Cap FundJune 2026
“We increased the Portfolio’s weighting in IDEXX Laboratories, Inc. (IDXX), a manufacturer of instruments used by veterinarians to test for various diseases, due primarily to our positive view of the company’s long-term fundamentals and the stock’s attractive valuation.”
Read the letterIDEXX Laboratories, Inc.
Fund coverage · 6 theses
- Jensen Quality Growth FundJune 2026
IDEXX Laboratories has high switching costs, recurring revenue, and durable growth with low balance-sheet risk.
Read the full thesis - Baron Growth FundDecember 2025
IDEXX Laboratories, Inc. is a veterinary diagnostics leader with strong execution, proprietary innovation, and secular pet-care tailwinds supporting durable growth.
Read the full thesis - Polen Global GrowthJune 2025
Backed by dominant market share and recurring revenues, IDEXX Labs offers long-term growth potential in pet diagnostics with defensive traits and renewed valuation appeal as pandemic-era pet care demand begins to normalize.
Read the full thesis - Platinium AMJune 2025
IDEXX is a leading global provider of veterinary diagnostics and software, enabling veterinarians to deliver rapid, in-clinic testing while generating continuous revenue through high-margin consumables.
Read the full thesis - Macquarie Large Cap Growth FundMarch 2025
IDEXX Laboratories Inc. is an animal health company poised for growth as the demand for veterinary services and diagnostics increases following the pandemic pet boom.
Read the full thesis - Baron Focused Growth FundDecember 2024
IDEXX Laboratories, Inc. is expected to achieve accelerated growth and strong financial performance due to the pandemic-driven increase in pet ownership, improved foot traffic, and its significant pricing power.
Read the full thesis
Read every full thesis on IDEXX Laboratories, Inc.
Unlock all 6 theses — the full reasoning behind what funds are buying, plus unlimited access to the entire archive.
View plans→