Marcelo Assalin
CFA, Head of Emerging Markets Debt, Portfolio Manager
About Marcelo
Marcelo Assalin, CFA, partner, is head of the emerging markets debt (EMD) team and a portfolio manager at William Blair Investment Management. He is also a member of Investment Management’s executive leadership team. Before joining the firm in 2020, Marcelo was head of EMD at NN Investment Partners starting in 2015 and lead portfolio manager for blended debt portfolios. He was also the lead portfolio manager for NNIP’s local currency strategies. Previously, Marcelo was a senior EMD portfolio manager and head of emerging market sovereign debt and local currency at ING IM USA (now Voya Financial). Before that, he held various roles at SulAmerica Investimentos, including CIO. Marcelo began his career as a credit analyst at Bank Boston in Sao Paulo, covering Brazilian companies. He received a B.A. in business administration & accounting from the University of São Paulo.
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About William Blair
William Blair is a premier global partnership 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 30 offices worldwide.*
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1935Year William Blair was founded
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1,950+Employees worldwide
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154 billion+Client assets
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90+ YearsIndependent and employee-owned
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30+Offices worldwide*
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650+Companies under coverage
As of December 31, 2025
*Includes strategic partnerships with Allier Capital, BDA Partners, and Poalim Equity.