Mario Gabelli's position in Intuitive Surgical is currently worth $2.24 Million. That's 0.02% of their equity portfolio (454th largest holding). The first Intuitive Surgical trade was made in Q3 2011. Since then Mario Gabelli bought shares thirteen more times and sold shares on nine occasions. The stake costed the investor $1.44 Million, netting the investor a gain of 56% so far.