Mario Gabelli acquired 487 Thousand Xylem shares worth $63.6 Million. That's 0.68% of their equity portfolio (31st largest holding). The first Xylem trade was made in Q4 2011. Since then Mario Gabelli bought shares ten more times and sold shares on 38 occasions. The stake costed the investor $13.1 Million, netting the investor a gain of 387% so far.