Mario Gabelli acquired 379 Thousand Xylem shares worth $48.1 Million. That's 0.50% of their equity portfolio (47th largest holding). The first Xylem trade was made in Q4 2011. Since then Mario Gabelli bought shares ten more times and sold shares on 43 occasions. The stake costed the investor $10.2 Million, netting the investor a gain of 374% so far.