Avantor® Announces CFO Transition

Avantor, Inc. (NYSE: AVTR), a leading global provider of mission-critical products and services to customers in the life sciences, advanced technologies and applied materials industries, today announced that Executive Vice President and Chief Financial Officer Thomas A. Szlosek will be leaving the Company effective August 2, 2023 to pursue an opportunity outside the life sciences industry. Mr. Szlosek will continue in his role through the announcement of the Company’s second quarter earnings. Avantor has initiated a search to identify the Company’s next CFO.

“On behalf of the entire Avantor team, I thank Tom for all of his contributions. He has been a great partner as we took Avantor public in 2019, expanded the global enterprise, and built a resilient foundation to drive growth in our core business,” said Michael Stubblefield, President and Chief Executive Officer. “We appreciate Tom’s dedication to Avantor and his continued support to ensure a smooth transition.”

Mr. Szlosek said, “It has been a privilege working alongside such an exceptional team. With a strong foundation in place and Avantor well positioned to continue capitalizing on fundamental growth drivers and executing on its long-term strategy, I felt now was the right time to take on a new opportunity.”

The company reaffirmed the fiscal 2023 financial guidance provided during the first quarter earnings conference call on April 28, 2023.

About Avantor

Avantor®, a Fortune 500 company, is a leading global provider of mission-critical products and services to customers in the biopharma, healthcare, education & government, and advanced technologies & applied materials industries. Our portfolio is used in virtually every stage of the most important research, development and production activities in the industries we serve. Our global footprint enables us to serve more than 300,000 customer locations and gives us extensive access to research laboratories and scientists in more than 180 countries. We set science in motion to create a better world. For more information, visit

Written by Nizel Pradhan

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