The current institutional shareholding score of Charles River Laboratories International Inc is 10.00, ranking 1 out of 389 in the Biotechnology & Medical Research industry. The latest institutional shareholding proportion is 116.51%, representing a quarter-over-quarter decrease of 9.74%. The largest institutional shareholder is David G. Herro, holding a total of 2.26M shares, representing 4.47% of shares outstanding, with 0.01% decrease in holdings.