John F. O'Toole, partner, is director of research in William Blair's Institutional Equity Research, Sales, and Trading group. Mr. O'Toole joined William Blair in 1996 after working in institutional equity sales for Credit Suisse starting in 1991. In 2009 Mr. O'Toole was named national sales manager of William Blair's institutional equity division. He received a bachelor's in economics from Tufts University in 1987 and an M.B.A. with a concentration in finance from Columbia University in 1991. He lives in Chicago with his wife and three children.