Joel Greenblatt acquired 50.6 Thousand 3M shares worth $5.3 Million. That's 0.09% of their equity portfolio (284th largest holding). The first 3M trade was made in Q2 2012. Since then Joel Greenblatt bought shares 22 more times and sold shares on 21 occasions. The investor's estimated purchase price is $9.12 Million, resulting in a loss of 42%.