Mario Gabelli acquired 136 Thousand Amazon.com shares worth $29 Million. That's 0.30% of their equity portfolio (89th largest holding). The first Amazon.com trade was made in Q4 2001. Since then Mario Gabelli bought shares 33 more times and sold shares on 35 occasions. The stake costed the investor $8.01 Million, netting the investor a gain of 262% so far.