
Shares of medical device maker Intuitive Surgical ISRG.O fall 2% to $555 in early trading
ISRG says long-time CEO Gary Guthart to step down, effective July 1; President Dave Rosa promoted as CEO
Guthart, who has been at the helm since 2010, will take on a new role as executive chair of Intuitive's board
Current board Chair Craig Barratt will become lead independent director
As of last close, stock up 8.4% YTD