Joel Greenblatt acquired 251 Thousand Interpublic Group Of Cos. shares worth $7.63 Million. That's 0.14% of their equity portfolio (173rd largest holding). The first Interpublic Group Of Cos. trade was made in Q1 2011. Since then Joel Greenblatt bought shares 27 more times and sold shares on 24 occasions. The stake costed the investor $5.4 Million, netting the investor a gain of 41% so far.