Joel Greenblatt acquired 7.62 Thousand West Pharmaceutical Services shares worth $2.75 Million. That's 0.05% of their equity portfolio (485th largest holding). The first West Pharmaceutical Services trade was made in Q4 2010. Since then Joel Greenblatt bought shares fourteen more times and sold shares on eighteen occasions. The stake costed the investor $1.33 Million, netting the investor a gain of 106% so far.