0001127602-21-024662.txt : 20210901 0001127602-21-024662.hdr.sgml : 20210901 20210901142925 ACCESSION NUMBER: 0001127602-21-024662 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20210809 FILED AS OF DATE: 20210901 DATE AS OF CHANGE: 20210901 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: MASSARO GEORGE CENTRAL INDEX KEY: 0001221496 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-15943 FILM NUMBER: 211229719 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: CHARLES RIVER LABORATORIES INTERNATIONAL, INC. CENTRAL INDEX KEY: 0001100682 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-COMMERCIAL PHYSICAL & BIOLOGICAL RESEARCH [8731] IRS NUMBER: 061397316 FISCAL YEAR END: 1226 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 X0306 4 2021-08-09 0001100682 CHARLES RIVER LABORATORIES INTERNATIONAL, INC. CRL 0001221496 MASSARO GEORGE 251 BALLARDVALE STREET WILMINGTON MA 01887 1 Common Stock 2021-08-09 5 G 0 E 500 0 D 4855 D Common Stock 2021-08-31 4 M 0 2539 164.24 A 7394 D Common Stock 2021-08-31 4 S 0 1556 442.1592 D 5838 D Common Stock 2021-08-31 4 S 0 983 442.9883 D 4855 D Stock Options (Right to Buy) 164.24 2021-08-31 4 M 0 2539 0 D 2021-05-11 2030-05-11 Common Stock 2539 0 D This transaction was executed in multiple trades at prices ranging from $441.67 to $442.65. 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 transaction was executed in multiple trades at prices ranging from $442.725 to $443.265. 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. /s/ George E. Massaro 2021-09-01