Guy is a cofounder of Alta Partners, a leading venture capital firm in life sciences, funding over 150 companies in the healthcare and life sciences sectors since 1996 through eight venture capital funds. Guy is a life sciences investment veteran with more than 30 years of experience. Among Silicon Valley’s most successful venture capitalists in biotech, he was named to Forbes’ Midas List in 2007. As one of the four original founders of Alta Partners, Guy was intimately involved with raising eight venture capital funds, leading to over $2B of investments in private and public companies. Through his guidance, Alta Partners has consistently ranked among the firms with the highest number of M&A or IPO exits in the life sciences industry. Guy was involved in the funding and development of notable medical technology and life science companies including AcelRx, ATS Medical, Cutera, Innerdyne, R2 Technology, deCODE genetics, and Vesica. He serves on the board of directors of several companies, including Bioventus, Carbylan Biosurgery, PneumRx, USGI Medical, Vertiflex, and ZS Pharma, and is the chairman of the boards of USGI Medical and ZS Pharma. He has also served on the board of directors of the Medical Device Manufacturing Association from 2003 to 2013 and is now a board member emeritus. Guy earned a bachelor’s degree in economics from Stanford University and an MBA from Chicago Booth.