Board initiates search process to identify next CEORADNOR, Pa., April 25, 2025 /PRNewswire/ -- Avantor, Inc., a leading global provider of mission-critical products and services for the life sciences and advanced technology industries, today announced that Michael Stubblefield intends to step down from his role as Director, President and Chief Executive Officer upon the appointment of a successor.The Board and Mr. Stubblefield agreed that now is the right time to initiate a leadership transition. The Board ...