1.Sales and profit
See section →- Charles River Laboratories had $4.0B of revenue in fiscal 2025, down 0.9% on the year before. Over five years, revenue changed +6.6% a year on average.
- Its operating margin was 0.6%, down 5.0 pts: of every 100 in sales, about 1 is left after running the business.
- Charles River Laboratories lost $144M in fiscal 2025.




