0001127602-24-015691.txt : 20240516 0001127602-24-015691.hdr.sgml : 20240516 20240516163550 ACCESSION NUMBER: 0001127602-24-015691 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240515 FILED AS OF DATE: 20240516 DATE AS OF CHANGE: 20240516 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: MASSARO GEORGE CENTRAL INDEX KEY: 0001221496 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-15943 FILM NUMBER: 24956167 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: CHARLES RIVER LABORATORIES INTERNATIONAL, INC. CENTRAL INDEX KEY: 0001100682 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-COMMERCIAL PHYSICAL & BIOLOGICAL RESEARCH [8731] ORGANIZATION NAME: 08 Industrial Applications and Services IRS NUMBER: 061397316 FISCAL YEAR END: 1228 BUSINESS ADDRESS: STREET 1: 251 BALLARDVALE ST CITY: WILMINGTON STATE: MA ZIP: 01887 BUSINESS PHONE: 781-222-6000 MAIL ADDRESS: STREET 1: 251 BALLARDVALE ST CITY: WILMINGTON STATE: MA ZIP: 01887 FORMER COMPANY: FORMER CONFORMED NAME: CHARLES RIVER LABORATORIES INTERNATIONAL INC DATE OF NAME CHANGE: 20000605 FORMER COMPANY: FORMER CONFORMED NAME: CHARLES RIVER LABORATORIES HOLDINGS INC DATE OF NAME CHANGE: 19991208 4 1 form4.xml PRIMARY DOCUMENT X0508 4 2024-05-15 0001100682 CHARLES RIVER LABORATORIES INTERNATIONAL, INC. CRL 0001221496 MASSARO GEORGE C/O CHARLES RIVER LABORATORIES 251 BALLARDVALE STREET WILMINGTON MA 01887 1 1 Common Stock 2024-05-15 4 S 0 123 234.72 D 6064 D Common Stock 2024-05-15 4 S 0 113 235.61 D 5951 D Common Stock 2024-05-15 4 S 0 96 236.78 D 5855 D This transaction was executed in multiple trades at prices ranging from $234.27 to $235.05. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. This sale occurred pursuant to a 10b5-1 trading plan. This transaction was executed in multiple trades at prices ranging from $235.35 to $236.16. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. This sale occurred pursuant to a 10b5-1 trading plan. This transaction was executed in multiple trades at prices ranging from $236.36 to $237.18. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. This sale occurred pursuant to a 10b5-1 trading plan. /s/ George E. Massaro 2024-05-15