Mario Gabelli acquired 101 Thousand Casella Waste Systems shares worth $9.94 Million. That's 0.10% of their equity portfolio (218th largest holding). The first Casella Waste Systems trade was made in Q4 2007. Since then Mario Gabelli bought shares fifteen more times and sold shares on 28 occasions. The stake costed the investor $397 Thousand, netting the investor a gain of 2402% so far.