Mario Gabelli acquired 6.67 Thousand West Pharmaceutical Services shares worth $1.42 Million. That's 0.02% of their equity portfolio (504th largest holding). The first West Pharmaceutical Services trade was made in Q1 2005. Since then Mario Gabelli bought shares four more times and sold shares on five occasions. The stake costed the investor $147 Thousand, netting the investor a gain of 867% so far.