Jay M. Lisowski
CFA, Global Head of Product Strategy & Development
About Jay
Jay Lisowski, CFA, is the global head of product strategy & development at William Blair Investment Management. He is also a member of Investment Management’s executive leadership team. Jay is responsible for the firm’s product strategy efforts, including differentiated product innovation, expansion across vehicles, asset classes, and client segments, and contributing to the firm’s corporate development efforts. Before joining the firm in 2026, he was a managing director and head of product development & management at First Eagle Investments. Previously, Jay held senior product roles at Jennison Associates, Oppenheimer Funds, MFS, Madison Investment Advisors, Wells Capital Management, and Strong Capital Management. He received a B.B.A. from the University of Wisconsin–Madison.
Why We Invest Shapes How We Invest
Culture is more than the ethos that characterizes our organization; it’s the engine that guides our practices. Our people are defined by their shared values and curiosity. Our approach is defined by teamwork; a disciplined, proven methodology; and technology-enhanced collaboration. Our purpose is defined by a focus on our clients and communities. But don’t take our word for it. See what culture means to our colleagues.
Read more
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.*
-
1935Year William Blair was founded
-
1,950+Employees worldwide
-
145 billion+Client assets
-
90+ YearsIndependent and employee-owned
-
30+Offices worldwide*
-
700+Companies under coverage
As of March 31, 2026
*Includes strategic alliances with Allier Capital, BDA Partners, and Poalim Equity Ltd.