Managing Director of Arboretum Ventures in Ann Arbor. Arboretum Ventures is a healthcare-focused venture capital firm with $235 million under management. Petersen is responsible for Arboretum's financial and fund management activities and is a member of the investment committee. He led Arboretum's investments in HealthMedia (acquired by Johnson & Johnson) and Accuri Cytometers (acquired by Becton, Dickinson and Co.) and served as a director of each company prior to exit. He also leads Arboretum's investments in and serves as a director of Advanced ICU Care, Inogen, PathCentral, ArborMetrix, and Tangent. He is involved in a number of community efforts focused on entrepreneurship and frequently lectures at local universities on venture capital. He is the Alumni Fund manager for the Wolverine Venture Fund and chairman of the board of directors of the Michigan Venture Capital Association. Petersen has been a venture capital investor for 15 years and recently has focused on investments in companies that are changing the way healthcare is delivered. Prior to joining Arboretum in 2002, he was managing director of the Zell Lurie Institute for Entrepreneurial Studies at the University of Michigan, leading the creation and growth of the Institute's programs. He also directed the Wolverine Venture Fund, the Institute's venture capital fund focusing on early-stage life science and technology investments. Previously, Petersen spent nine years at the economic consulting firm Industrial Economics, Inc. He received his bachelor's degree in economics from Williams College, where he was captain of the men's tennis team. He received his master's degree in economics from the University of Wisconsin-Madison, and an MBA from the Ross School of Business at the University of Michigan.