CHARLES RIVER LABORATORIES INTERNATIONAL, INC. (CRL) · Insider Trading (Form 4) SEC Filing

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-05-29 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: CHARLES RIVER LABORATORIES INTERNATIONAL, INC. (CRL) CIK: 0001100682 --- Reporting Owner --- Name: Girshick Birgit CIK: 0001732091 Role: Officer (Chief Executive Officer) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-05-29 | Code: A (Grant or award) Shares: +9,961 | Price: $180.71 Total Value: $1,800,052.31 Shares Owned After: 40,981 | Ownership: D (Direct) Footnotes: [F1] Unvested restricted stock units annually ratably vest on: May 29, 2027; May 29, 2028; May 29, 2029; May 29, 2030. [Transaction #2] Security: Common Stock Date: 2026-05-30 | Code: F (Payment of exercise/tax) Shares: -1,204 | Price: $180.71 Total Value: $217,574.84 Shares Owned After: 39,777 | Ownership: D (Direct) [Transaction #3] Security: Common Stock Date: 2026-05-31 | Code: F (Payment of exercise/tax) Shares: -378 | Price: $180.71 Total Value: $68,308.38 Shares Owned After: 39,399 | Ownership: D (Direct) --- Holdings --- [Holding #1] Security: Common Stock Ownership: I (Indirect) --- Footnotes (Complete Index) --- F1: Unvested restricted stock units annually ratably vest on: May 29, 2027; May 29, 2028; May 29, 2029; May 29, 2030. --- Signature --- /s/ /s/ Birgit Girshick (2026-06-02)