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: 2026-06-05 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: CHARLES RIVER LABORATORIES INTERNATIONAL, INC. (CRL) CIK: 0001100682 --- Reporting Owner --- Name: FOSTER JAMES C CIK: 0001141722 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-06-05 | Code: G (Gift) Shares: -153,361 | Price: $0.00 Shares Owned After: 126,596 | Ownership: D (Direct) Footnotes: [F1] Reflects the exempt transfer pursuant to Rule 16a-13 of 153,361 shares held by the reporting person to a revocable trust controlled by the reporting person. [Transaction #2] Security: Common Stock Date: 2026-06-05 | Code: G (Gift) Shares: +153,361 | Price: $0.00 Shares Owned After: 155,611 | Ownership: I (Indirect) | Nature: By Trust Footnotes: [F1] Reflects the exempt transfer pursuant to Rule 16a-13 of 153,361 shares held by the reporting person to a revocable trust controlled by the reporting person. [Transaction #3] Security: Common Stock Date: 2026-06-05 | Code: G (Gift) Shares: -20,000 | Price: $0.00 Shares Owned After: 106,596 | Ownership: D (Direct) Footnotes: [F2] Reflects the exempt transfer pursuant to Rule 16a-13 of 20,000 shares held by the reporting person to a revocable trust controlled by the reporting person. [Transaction #4] Security: Common Stock Date: 2026-06-05 | Code: G (Gift) Shares: +20,000 | Price: $0.00 Shares Owned After: 20,000 | Ownership: I (Indirect) | Nature: 2026 GRAT Footnotes: [F2] Reflects the exempt transfer pursuant to Rule 16a-13 of 20,000 shares held by the reporting person to a revocable trust controlled by the reporting person. [Transaction #5] Security: Common Stock Date: 2026-06-05 | Code: G (Gift) Shares: -10,000 | Price: $0.00 Shares Owned After: 0 | Ownership: I (Indirect) | Nature: Held By Spouse Footnotes: [F3] Reflects the exempt transfer pursuant to Rule 16a-13 of 10,000 shares held by the reporting person's spouse to a revocable trust controlled by the reporting person's spouse. [Transaction #6] Security: Common Stock Date: 2026-06-05 | Code: G (Gift) Shares: +10,000 | Price: $0.00 Shares Owned After: 10,000 | Ownership: I (Indirect) | Nature: By Trust Held By Spouse Footnotes: [F3] Reflects the exempt transfer pursuant to Rule 16a-13 of 10,000 shares held by the reporting person's spouse to a revocable trust controlled by the reporting person's spouse. --- Holdings --- [Holding #1] Security: Common Stock Ownership: I (Indirect) [Holding #2] Security: Common Stock Ownership: I (Indirect) --- Footnotes (Complete Index) --- F1: Reflects the exempt transfer pursuant to Rule 16a-13 of 153,361 shares held by the reporting person to a revocable trust controlled by the reporting person. F2: Reflects the exempt transfer pursuant to Rule 16a-13 of 20,000 shares held by the reporting person to a revocable trust controlled by the reporting person. F3: Reflects the exempt transfer pursuant to Rule 16a-13 of 10,000 shares held by the reporting person's spouse to a revocable trust controlled by the reporting person's spouse. --- Signature --- /s/ /s/ James C. Foster (2026-06-06)