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Michael Stubblefield

Also Known As Mr. Stubblefield

CEO of Avantor

Michael Stubblefield's profile picture

Michael Stubblefield is a Director, President, and Chief Executive Officer of Avantor, Inc. (AVTR)

Prior to assuming his current position, Mr. Stubblefield served as a Senior Expert for the Chemicals Practice of McKinsey & Company from 2013 to 2014. Prior to this role, Mr. Stubblefield held a variety of roles at Celanese Corporation from 1994 to 2012, including Vice President and General Manager, Advanced Engineered Materials and Chief Marketing Officer.


  • Bachelor’s degree in chemical Engineering - University of Utah
  • MBA - Texas A&M University-Corpus Christi


  • Avantor - CEO
  • Avantor - President
  • Avantor - Director