RADNOR, PA — Avantor, Inc. announced that Michael Stubblefield, its Director, President, and Chief Executive Officer, will step down from his role upon the appointment of a successor. The transition reflects a mutual decision by the Board and Stubblefield, positioning the company for its next phase of leadership.
The Board has initiated a formal search for a new CEO, engaging an executive search firm to identify a leader with a proven record of driving growth and value creation. “On behalf of the Board, I thank Michael for over a decade of dedicated service and leadership to Avantor,” said Jonathan Peacock, Chairman of the Board of Directors. He emphasized the company’s strong foundation, citing its durable platform, differentiated capabilities, and global market presence.
Stubblefield reflected on his tenure, saying, “It has been an honor to lead Avantor and work alongside our team to transform the Company into a leading life science tools company and global provider of mission-critical products for life sciences and technologies customers. With the support of thousands of incredible associates around the world, I know we have a bright future ahead.” He will remain available to advise the Board until February 2026, helping to ensure a smooth leadership transition.
Under Stubblefield’s leadership, Avantor has grown into a major global player in life sciences tools with a broad and expanding portfolio and capabilities critical to its customer base. Moving forward, the company remains committed to leveraging its strong platform and global reach to continue delivering value to customers and stakeholders worldwide.
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