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Advisor Information for WSMNX

Fund Inception12/29/2003
Name of IssuerWilliam Blair
Fund Advisor(s)William Blair Investment Management, LLC
Sub-Advisor(s)--

Fund Managers for WSMNX

Daniel Crowe
Portfolio Manager since 12/03/2015
Dan Crowe, CFA, partner, is a portfolio manager on William Blair’s Small-Mid Cap Growth and Small-Mid Cap Core strategies. Previously, he was a portfolio manager on the firm’s Mid Cap Growth strategy, an associate portfolio manager on the firm’s Small Cap Growth strategy, and a research analyst, where he focused on all sectors across the U.S. small-cap space. Before joining William Blair as a generalist research analyst in May 2011, Dan was a portfolio manager at Pyramis Global Advisors and a portfolio manager and analyst at The Boston Company/Founders Asset Management. He began his career as a generalist analyst at Marsico Capital Management. Dan is a member of the CFA Institute and the CFA Society Chicago. He received a B.S. in mechanical engineering from the University of Illinois at Urbana-Champaign.
Nick Zimmerman
Portfolio Manager since 06/30/2023
Nick Zimmerman, CFA, partner, is a portfolio manager for the Small-Mid Cap Core and Small-Mid Cap Growth strategies at William Blair Investment Management. Formerly, he was a research analyst focused on U.S. small- and mid-cap resources companies. Before joining the firm in 2017, Nick was an equity analyst at Holland Capital Management covering energy, materials, aerospace and defense, and transportation companies. He is a member of the CFA Institute and the CFA Society Chicago. Nick received a B.S. in finance, with high honors, from the University of Illinois Urbana-Champaign and an M.S. in finance from the University of Wisconsin–Madison.
Ward Sexton
Portfolio Manager since 02/01/2026
Ward Sexton, CFA, partner, is a portfolio manager for the Small Cap Growth, SMID Growth, and SMID Core strategies at William Blair Investment Management. He leads the U.S. small- and small-mid cap growth team and is a member of Investment Management’s executive leadership team and the firm’s extended leadership group. Formerly, Ward was an associate portfolio manager for the Small Cap Growth strategy and a research analyst on the U.S. growth & core equity team covering resource, financial, and consumer companies. He joined the firm in 1999, initially working in the corporate finance group for two years before moving to the investment team. Ward is a member of the CFA Institute and the CFA Society Chicago. He received a B.S. in finance, with honors, from the University of Illinois Urbana-Champaign and an M.B.A., with high honors, from the University of Chicago Booth School of Business.