Casey K. Preyss, CFA, Partner
Casey Preyss is a portfolio manager for William Blair’s Emerging Markets Growth, Emerging Markets Small Cap Growth, and China A-Shares Growth strategies. Since joining William Blair in 2000, he has been a research analyst covering industrials, IT, and resources stocks. Before taking on fundamental research responsibilities for William Blair’s global equity team, Casey was a quantitative analyst. Before joining the firm, he was an international equity research sales associate with Thomas White International. He received a B.S.B.A. from The Ohio State University and an M.B.A. from the University of Chicago’s Booth School of Business.
Vivian Lin Thurston, CFA, Partner
Vivian Lin Thurston is a portfolio manager for William Blair’s China A-Shares Growth strategy and a global research analyst covering Chinese equities. Previously, she was a global research analyst covering large-cap consumer stocks. Before joining William Blair, Vivian was vice president and consumer sector head at Calamos Investments. Before that, she was an executive director and senior investment analyst at UBS Global Asset Management/Brinson Partners, where she was responsible for stock selection and research for consumer sectors in the United States and emerging markets. Vivian also held roles at Mesirow Financial, China Agribusiness Development Trust and Investment Corporation, and Vanke. She is a member of the CFA Institute and the CFA Society of Chicago. She is also the founder and chairman of the board of the Chinese Finance Association of America, a 501(c) nonprofit organization. Vivian received a B.A. in sociology from Peking University and an M.A. in sociology and M.S. in finance from the University of Illinois Urbana-Champaign.