George Soros's position in Intuitive Surgical is currently worth $18.3 Million. That's 0.68% of their equity portfolio (34th largest holding). The first Intuitive Surgical trade was made in Q2 2012. Since then George Soros bought shares four more times and sold shares on four occasions. The stake costed the investor $14.9 Million, netting the investor a gain of 23% so far.