Jeremy Grantham acquired 3.44 Million Amazon.com shares worth $704 Million. That's 2.25% of their equity portfolio (13th largest holding). The first Amazon.com trade was made in Q1 2013. Since then Jeremy Grantham bought shares nineteen more times and sold shares on 21 occasions. The stake costed the investor $421 Million, netting the investor a gain of 67% so far.