Joel Greenblatt's position in Charles River Laboratories International is currently worth $43.7M. That's 0.25% of their equity portfolio (27th largest holding). The first Charles River Laboratories International trade was made in Q1 2011. Since then Joel Greenblatt bought shares 28 more times and sold shares on 27 occasions. The investor's estimated purchase price is $47.6M, resulting in a loss of 8.2%.