Joel Greenblatt acquired 314 Thousand Interpublic Group Of Cos. shares worth $9.99 Million. That's 0.15% of their equity portfolio (132nd largest holding). The first Interpublic Group Of Cos. trade was made in Q1 2011. Since then Joel Greenblatt bought shares 28 more times and sold shares on 24 occasions. The stake costed the investor $6.81 Million, netting the investor a gain of 47% so far.