Managing Director, Head of Life Sciences
John Sonnier is a managing director for William Blair based in the firm’s Chicago office. He originally joined William Blair in 2005. Prior to William Blair, he worked for Prudential, Vector Securities International, Baxter International, and Johnson & Johnson.
Lake County Community Foundation
Initial Public Offering
October 2024
Last week, William Blair acted as an underwriter on three healthcare IPOs: Upstream Bio’s (NASDAQ:UPB) $293 million IPO, CAMP4 Therapeutics’ (NASDAQ: CAMP) $75 million IPO, and Ceribell’s (NASDAQ: CBLL) $207 million IPO.
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PIPE
April 2024
Follow-on Offering
February 2024
Follow-on Offering
February 2024
PIPE
February 2024
Follow-on Offering
March 2023
Follow-on Offering
January 2023
PIPE
December 2022
Follow-on Offering
December 2022
Follow-on Offering
August 2022
Follow-On Offering
August 2022
Follow-on Offering
May 2022
Our investment bankers are 100 percent committed to your organization’s sustained success. By drawing on our deep industry and product experience as well as our dedicated global resources, we provide advisory and financing services that allow you to capitalize on today’s opportunities and anticipate tomorrow’s challenges.
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The rapid and cost-effective development of innovative therapeutics and treatments is critical not just to public health, but to the functioning of society and economic activity. Leading drug developers, as well as their partners across the research, development, and manufacturing value chain, count on William Blair’s deep expertise in biopharma’s capital-raising and deal-making landscape.
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William Blair’s Medical Technology team works with many of the world’s most innovative medical technology companies to help transform their growth trajectory through capital access and M&A partnerships. By combining deep expertise in the mega trends driving life science and medical product innovation and our knowledge of the regulatory and reimbursement environment, we deliver trusted advice and outstanding execution for market-leading companies and financial sponsors.
Learn more about our medical technology expertise
William Blair is a premier global boutique 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 20 offices worldwide.*
Year William Blair was founded
Employees worldwide
Client assets
Independent and employee-owned
Offices worldwide
Companies under coverage
As of September 30, 2024
*Includes strategic partnerships with Allier Capital, BDA Partners, and Poalim Capital Markets.
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