Form 4 Filing for Charles River Laboratories International, Inc.

This filing details stock transactions by Shannon M. Parisotto, CEVP of Discovery & Safety Assessment. On February 6, 2026, 7,169 shares of Common Stock were transferred to a revocable trust controlled by Parisotto, exempt under Rule 16a-13. This involved a direct disposal (D) of shares and an indirect acquisition (A) by the trust. Following these transactions, Parisotto directly held 8,015 shares and the trust indirectly held 8,151 shares. Subsequently, on May 26, 2026, Parisotto disposed of 168 shares directly at a price of $160.30, leaving 7,847 shares. On May 27, 2026, a further 105 shares were disposed of directly at $156.73, resulting in 7,742 directly held shares. The filing also notes that 28,510 shares are held indirectly by Karpathos Investments LLC, controlled by Parisotto.