Joel Greenblatt acquired 177 Thousand MerckInc shares worth $23.2 Million. That's 0.36% of their equity portfolio (20th largest holding). The first MerckInc trade was made in Q1 2011. Since then Joel Greenblatt bought shares 26 more times and sold shares on 25 occasions. The stake costed the investor $10.8 Million, netting the investor a gain of 114% so far.