Jeremy Grantham acquired 3.22 Million Amazon.com shares worth $736 Million. That's 2.35% of their equity portfolio (13th largest holding). The first Amazon.com trade was made in Q1 2013. Since then Jeremy Grantham bought shares eighteen more times and sold shares on 21 occasions. The stake costed the investor $381 Million, netting the investor a gain of 93% so far.