Jeremy Grantham acquired 1.37 Million Intuitive Surgical shares worth $546 Million. That's 2.00% of their equity portfolio (18th largest holding). The first Intuitive Surgical trade was made in Q1 2013. Since then Jeremy Grantham bought shares eleven more times and sold shares on fourteen occasions. The stake costed the investor $388 Million, netting the investor a gain of 41% so far.