X0306 4 2017-03-01 0001100682 CHARLES RIVER LABORATORIES INTERNATIONAL INC CRL 0001270263 BERTOLINI ROBERT J CHARLES RIVER LABORATORIES 251 BALLARDVALE STREET WILMINGTON MA 01887 1 Common Stock 2017-03-01 4 M 0 11990 37.81 A 32140 D Common Stock 2017-03-01 4 S 0 87 87.27 D 32053 D Common Stock 2017-03-01 4 S 0 100 87.295 D 31953 D Common Stock 2017-03-01 4 S 0 200 87.30 D 31753 D Common Stock 2017-03-01 4 S 0 100 87.32 D 31653 D Common Stock 2017-03-01 4 S 0 100 87.35 D 31553 D Common Stock 2017-03-01 4 S 0 100 87.36 D 31453 D Common Stock 2017-03-01 4 S 0 100 87.39 D 31353 D Common Stock 2017-03-01 4 S 0 100 87.43 D 31253 D Common Stock 2017-03-01 4 S 0 100 87.44 D 31153 D Common Stock 2017-03-01 4 S 0 60 87.465 D 31093 D Common Stock 2017-03-01 4 S 0 300 87.47 D 30793 D Common Stock 2017-03-01 4 S 0 300 87.49 D 30493 D Common Stock 2017-03-01 4 S 0 100 87.50 D 30393 D Common Stock 2017-03-01 4 S 0 100 87.51 D 30293 D Common Stock 2017-03-01 4 S 0 40 87.515 D 30253 D Common Stock 2017-03-01 4 S 0 100 87.52 D 30153 D Common Stock 2017-03-01 4 S 0 900 87.55 D 29253 D Common Stock 2017-03-01 4 S 0 30 87.555 D 29223 D Common Stock 2017-03-01 4 S 0 400 87.56 D 28823 D Common Stock 2017-03-01 4 S 0 100 87.58 D 28723 D Common Stock 2017-03-01 4 S 0 100 87.585 D 28623 D Common Stock 2017-03-01 4 S 0 40 87.595 D 28583 D Common Stock 2017-03-01 4 S 0 141 87.60 D 28442 D Common Stock 2017-03-01 4 S 0 700 87.61 D 27742 D Common Stock 2017-03-01 4 S 0 19 87.615 D 27723 D Common Stock 2017-03-01 4 S 0 400 87.64 D 27323 D Common Stock 2017-03-01 4 S 0 41 87.645 D 27282 D Common Stock 2017-03-01 4 S 0 197 87.69 D 27085 D Common Stock 2017-03-01 4 S 0 200 87.77 D 26885 D Stock Options (Right to Buy) 37.81 2017-03-01 4 M 0 11990 0 D 2012-02-01 2018-02-01 Common Stock 11990 0 D /s/ Robert J. Bertolini 2017-03-02