Joel Greenblatt acquired 479k MerckInc shares worth $40.3M. That's 0.23% of their equity portfolio (35th largest holding). The first MerckInc trade was made in Q1 2011. Since then Joel Greenblatt bought shares 29 more times and sold shares on 27 occasions. The stake costed the investor $31.7M, netting the investor a gain of 27% so far.