Achieves fourth quarter revenue growth of 14% as reported and 12% organic, reflecting strong CAG Diagnostics recurring revenue, growing 12% reported and 10% organic (Form 8-K)

WESTBROOK, Maine, February 2, 2026 - IDEXX Laboratories, Inc. (NASDAQ: IDXX), a global leader in pet healthcare innovation, today announced fourth quarter and full year results.

Fourth Quarter and Full Year Results

The Company reports revenues of $1,091 million for the fourth quarter of 2025, an increase of 14% compared to the prior year period as reported and 12% on an organic basis, driven by Companion Animal Group ("CAG") growth of 15% as reported and 13% organic and Water revenue growth of 12% as reported and 10% organic.

Earnings per diluted share ("EPS") were $3.08 for the fourth quarter, an increase of 18% as reported and 17% on a comparable basis. Results reflect operating margin expansion of 150 basis points as reported and 120 basis points on a comparable basis. Fourth quarter EPS included $0.09 per share positive impact from currency changes and $0.07 per share in tax benefits from share-based compensation.

Revenue for the full year of $4,304 million increased 10% as reported and organically, driven by 9% as reported and 8% organic growth in CAG Diagnostics recurring revenue.

For the full year 2025, EPS of $13.08 increased 23% on a reported basis and 14% on a comparable basis, including a ~7% EPS growth benefit from comparison to the prior years discrete litigation expense accrual. EPS results reflect operating margin expansion of 270 basis points as reported, including a ~180 basis point positive impact from comparison to the prior years discrete litigation expense accrual, and 90 basis points on a comparable basis. EPS results include lapping a $0.56 negative impact in 2024 and an $0.08 positive impact in the first quarter of 2025 from a discrete litigation expense accrual adjustment, as well as $0.35 in tax benefits from share-based compensation, and $0.10 positive impact from currency changes.

"IDEXX delivered a strong finish to 2025, supported by consistently high levels of execution by IDEXX teams around the world," said Jay Mazelsky, President and Chief Executive Officer. "2025 was a pivotal year for the Company, marked by the successful launch of IDEXX Cancer Dx™ for canine lymphoma and meaningful adoption of IDEXX inVue Dx well ahead of our initial goals. These innovations represent an important new phase of IDEXX's growth, expanding the role of diagnostics in earlier disease detection while helping veterinarians improve efficiency and manage workflow complexity. We enter 2026 with an exciting innovation pipeline, expanding instrument and software installed bases, and strong momentum across our global business."

Fourth Quarter Performance Highlights

Companion Animal Group

CAG revenue growth was led by CAG Diagnostics recurring revenue growth of 12% as reported and 10% organic, including 17% reported and 12% organic gains in international regions, and 9% reported and organic growth in the U.S., outpacing sector growth levels. U.S. growth was aided by increased diagnostic frequency, including early benefits from an aging pet population.

Additional U.S. companion animal practice key metrics are available in the Q4 2025 Earnings Snapshot accessible on the IDEXX website, www.idexx.com/investors.

Sustained commercial execution - including net customer gains, growing benefits from IDEXX innovation, and expansion of the premium instrument installed base - drove double-digit CAG Diagnostics recurring revenue growth.

CAG Diagnostics capital instrument revenues expanded 76% as reported and 69% on an organic basis, led by record quarterly instrument placements, including benefits from over 1,900 IDEXX inVue Dx placements and nearly 1,400 new and competitive Catalyst placements.

Veterinary software, services and diagnostic imaging systems revenue growth increased 13% as reported and organically, led by continued cloud-native software installed base expansion.

Water

Water revenues grew 12% reported and 10% organic for the quarter, reflecting solid growth in the U.S. and International regions.

Livestock, Poultry and Dairy ("LPD")

LPD revenues increased 8% reported and 4% organic for the quarter, led by solid gains in North and Latin America across major product categories.

Gross Profit and Operating Profit

Gross profit increased 15% as reported and 13% on a comparable basis. Gross margin of 60.3% expanded 50 basis points as reported and 60 basis points on a comparable basis, supported by strong volume gains, reference laboratory productivity initiatives, and net price realization, helping to offset inflationary impacts.

Operating margin was 28.9% in the quarter, 150 basis points higher than the prior year period results on a reported basis and 120 basis points on a comparable basis. Operating margin results reflect an 11% operating expense increase as reported and 10% growth on a comparable basis. Operating expense growth was driven by investments in commercial resources and higher R&D spend related to advancing the Company's innovation roadmap.

2026Growth and Financial Performance Outlook

The Company's initial 2026 revenue guidance range of $4,632 million - $4,720 million, or reported growth of 7.6% - 9.6% and 7.0% - 9.0% on an organic basis, is supported by 8.6% - 10.6% reported and 8.0% - 10.0% organic CAG Diagnostics recurring revenue growth. The guidance range for global CAG Diagnostics recurring revenue growth reflects expectations for sustained benefits from execution drivers, supporting continued solid volume gains, and an estimated 4% full-year benefit from net price improvement. 2026 EPS guidance of $14.29 - $14.80 reflects expectations for solid organic revenue gains and a targeted 40 - 90 basis points of reported operating margin improvement.

The following table provides the Company's initial estimates for annual key financial metrics in 2026:

Amounts in millions except per share data and percentages

The following table outlines estimates of foreign currency exchange rate impacts, net of foreign currency hedging transactions, and foreign currency exchange rate assumptions reflected in the above financial performance outlook for 2026.

Conference Call and Webcast Information

IDEXX Laboratories, Inc. will host a conference call today at 8:30 a.m. (Eastern) to discuss its 2025 fourth quarter and full year financial results and management's outlook for 2026. To participate in the conference call, dial 1-800-330-6730 or 1-213-279-1575 and reference passcode 263206. Individuals can access a live webcast of the conference call on the IDEXX website, www.idexx.com/investors. An archived edition of the webcast will be available after 1:00 p.m. (Eastern) on that day via the same link and will remain available for one year.

About IDEXX Laboratories, Inc.

IDEXX is a global leader in pet healthcare innovation. Our diagnostic and software products and services create clarity in the complex, constantly evolving world of veterinary medicine. We support longer, fuller lives for pets by delivering insights and solutions that help the veterinary community around the world make confident decisions-to advance medical care, improve efficiency, and build thriving practices. Our innovations also help ensure the safety of milk and water across the world and maintain the health and well-being of people and livestock. IDEXX Laboratories, Inc. is a member of the S&P 500™ Index. Headquartered in Maine, IDEXX employs approximately 11,000 people and offers solutions and products to customers in more than 175 countries and territories. For more information about IDEXX, visit www.idexx.com.