Mario Gabelli acquired 148 Thousand Amazon.com shares worth $26.6 Million. That's 0.27% of their equity portfolio (93rd largest holding). The first Amazon.com trade was made in Q4 2001. Since then Mario Gabelli bought shares 31 more times and sold shares on 32 occasions. The stake costed the investor $8.54 Million, netting the investor a gain of 212% so far.