Joel Greenblatt acquired 222 Thousand Interpublic Group Of Cos. shares worth $5.6 Million. That's 0.06% of their equity portfolio (451st largest holding). The first Interpublic Group Of Cos. trade was made in Q1 2011. Since then Joel Greenblatt bought shares 29 more times and sold shares on 26 occasions. The stake costed the investor $4.83 Million, netting the investor a gain of 16% so far.