Mario Gabelli acquired 460 Thousand Comcast Corp shares worth $16.2 Million. That's 0.17% of their equity portfolio (149th largest holding). The first Comcast Corp trade was made in Q4 2002. Since then Mario Gabelli bought shares 31 more times and sold shares on 56 occasions. The stake costed the investor $8.4 Million, netting the investor a gain of 93% so far.