Keith Lee Mr. Lee, Senior Vice President and Senior Portfolio Manager, has been a member of the team that manages the fund since 2008. Prior, he was a senior analyst on the U.S. Lg Cap Qual Gr strategy. He joined American Century in 1998 and again in 2001. He started in the industry as an analyst for Oppenheimer funds in New York in 1996. He holds a bachelor’s degree in industrial engineering from Columbia University, is a CFA charterholder and a member of the CFA Institute.

Jeff Bourke is a portfolio manager for American Century Investments®. Mr. Bourke joined American Century Investments in 2007. Before he was promoted to portfolio manager in 2013, he was an investment analyst. Previously, he was an associate equity research analyst at Robert W. Baird & Co. He has worked in the investment industry since 2003. Mr. Bourke earned a master's degree in business administration from the Booth School of Business at the University of Chicago and a bachelor's degree in civil and environmental engineering from Duke University. He is a CFA® charterholder and a member of the CFA Institute.

Tong co-manages the U.S. Premier Large Cap Growth strategy and is also responsible for the development and implementation of quantitative tools and models that analyze portfolio risk for this strategy as well as the U.S. Large Cap Quality Growth, U.S. Focused Dynamic Growth and Health Care Impact Equity strategies. He has been a member of the team since 2012. Previously, Tong was a quantitative researcher, providing quantitative research support to our equity investment teams, including testing security selection factors, enhancing risk management tools and supporting and validating product development efforts. Prior to joining American Century in 2007, he held roles as a software engineer at Siemens Medical Systems, Watercove Networks and Renaissance Worldwide and as an electronic trading system consultant at Citadel Investment Group. Tong holds a bachelor’s degree in physics from Tsinghua University in Beijing, China, a master’s degree in electrical engineering from Vanderbilt University and a master’s degree in business administration from the Booth School of Business at the University of Chicago.