Joel Greenblatt acquired 48.1 Thousand PPG Industries shares worth $6.5 Million. That's 0.12% of their equity portfolio (209th largest holding). The first PPG Industries trade was made in Q3 2012. Since then Joel Greenblatt bought shares sixteen more times and sold shares on eighteen occasions. The stake costed the investor $6.11 Million, netting the investor a gain of 6.3% so far.