Joel Greenblatt acquired 56.6 Thousand Packaging Corp Of America shares worth $10.2 Million. That's 0.18% of their equity portfolio (99th largest holding). The first Packaging Corp Of America trade was made in Q3 2012. Since then Joel Greenblatt bought shares 21 more times and sold shares on 23 occasions. The stake costed the investor $7.8 Million, netting the investor a gain of 30% so far.