Joel Greenblatt acquired 15.4 Thousand RPM International shares worth $1.7 Million. That's 0.02% of their equity portfolio (716th largest holding). The first RPM International trade was made in Q1 2011. Since then Joel Greenblatt bought shares twelve more times and sold shares on nineteen occasions. The stake costed the investor $954 Thousand, netting the investor a gain of 78% so far.