Joel Greenblatt's position in Charles River Laboratories International is currently worth $66.6M. That's 0.18% of their equity portfolio (66th largest holding). The first Charles River Laboratories International trade was made in Q1 2011. Since then Joel Greenblatt bought shares 30 more times and sold shares on 28 occasions. The stake costed the investor $63.8M, netting the investor a gain of 4.5% so far.