$287,510,350
Follow-on Offering
Biopharma
John Sonnier
Managing Director, Head of Life Sciences
About John
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.
Board Membership
Lake County Community Foundation
Notable Transactions
$103,500,000
Follow-on Offering
Biopharma
$40,266,204
PIPE
Biopharma
$163,854,204
Follow-on Offering
Biopharma
$56,525,000
Follow-on Offering
Biopharma
$80,500,000
Follow-On Offering
Biopharma
$128,800,000
Follow-on Offering
Biopharma
$120,750,000
Follow-on Offering
Biopharma
$209,299,994
Initial Public Offering
Biopharma
$110,500,000
Initial Public Offering
Biopharma
$143,750,000
Initial Public Offering
Biopharma
$114,999,888
Follow-on Offering
Biopharma
Rigorous pursuit of your success. Every transaction. Every time.
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.
More about investment banking at William Blair
Biopharma
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.
More about our biopharma expertise
Medical Technology
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
About William Blair
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.*
1935
Year William Blair was founded
1,950+
Employees worldwide
132 billion+
Client assets
89 Years
Independent and employee-owned
20+
Offices worldwide
~650
Companies under coverage
As of December 31, 2023
*Includes strategic partnerships with Allier Capital, BDA Partners, and Poalim Capital Markets.