Mario Gabelli acquired 129 Thousand Boston Scientific shares worth $13.3 Million. That's 0.14% of their equity portfolio (172nd largest holding). The first Boston Scientific trade was made in Q3 2003. Since then Mario Gabelli bought shares 21 more times and sold shares on 52 occasions. The stake costed the investor $1.39 Million, netting the investor a gain of 855% so far.