Mario Gabelli acquired 21.5 Thousand Beacon Roofing Supply shares worth $2.67 Million. That's 0.03% of their equity portfolio (446th largest holding). The first Beacon Roofing Supply trade was made in Q3 2006. Since then Mario Gabelli bought shares six more times and sold shares on five occasions. The stake costed the investor $1.76 Million, netting the investor a gain of 51% so far.