Exhibit 99.1 IDEXX Laboratories Announces Fourth Quarter and Full Year 2025 Results 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 ▪ Achieves fourth quarter revenue growth of 14% as reported and 12% organic, reflecting strong CAG Diagnostics recurring revenue, growing 12% reported and 10% organic. ▪ Strong organic growth benefits from IDEXX e ...