Ken Griffin acquired 286 Thousand Intuitive Surgical shares worth $83.7 Million. That's 0.10% of their equity portfolio (260th largest holding). The first Intuitive Surgical trade was made in Q2 2013. Since then Ken Griffin bought shares 47 more times and sold shares on 44 occasions. The stake costed the investor $43.7 Million, netting the investor a gain of 91% so far.