Joel Greenblatt acquired 58.3 Thousand Western Digital shares worth $3.79 Million. That's 0.07% of their equity portfolio (392nd largest holding). The first Western Digital trade was made in Q4 2010. Since then Joel Greenblatt bought shares 24 more times and sold shares on 22 occasions. The stake costed the investor $3.11 Million, netting the investor a gain of 22% so far.