John O'Toole

Director of Research

About Mr. O'Toole

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.


Tufts University, B.A.
Columbia University, M.B.A.

About William Blair

William Blair is a premier global boutique with expertise in investment banking, investment management, and private wealth management. We provide advisory services, strategies, and solutions to meet our clients’ evolving needs. As an independent and employee-owned firm, together with our strategic partners, we operate in more than 20 offices worldwide.*

*Includes strategic partnerships with Allier Capital, BDA Partners, and Poalim Capital Markets.