CRL · 8-K · 20260805PR000115

Market Demand Trends

CHARLES RIVER LABORATORIES INTERNATIONAL, INC. · 2026-08-05 · Importance 17 · Surprise 24

Charles River reported that demand strengthened in the second quarter, with the highest net book-to-bill in nearly four years. Improvement was broad based across global biopharmaceutical clients and small and mid-sized biotechnology clients, particularly in the Discovery and Safety Assessment (DSA) segment. DSA organic revenue increased 0.2%, driven primarily by higher study volume for regulated safety assessment services, while company-wide organic revenue increased 0.1%.

Key facts

• DSA organic revenue increased by 0.2% driven primarily by higher study volume for regulated safety assessment services. source
• The Company recorded the highest net book-to-bill in nearly four years in Q2, indicating strengthening demand, particularly for the DSA segment. source