Joel Greenblatt acquired 86.2k 3M shares worth $13.4M. That's 0.08% of their equity portfolio (365th largest holding). The first 3M trade was made in Q2 2012. Since then Joel Greenblatt bought shares 25 more times and sold shares on 24 occasions. The investor's estimated purchase price is $14.7M, resulting in a loss of 9.0%.