Shelton, CT, March 23, 2026 – PerkinElmer, a global leader in analytical solutions and specialized services for the life sciences, applied, and food markets, today announced that Michael Stubblefield has been appointed as the company’s new Chief Executive Officer, succeeding Dirk Bontridder.

Michael joins PerkinElmer at an important moment in the company’s evolution as a standalone business following New Mountain Capital’s investment in March 2023, marking a new chapter in the company’s nearly 90—year pioneering legacy.

“Michael is a highly respected leader with a proven ability to scale businesses, improve performance, and drive growth. I would also like to thank Dirk for his contributions in positioning PerkinElmer for this next chapter,” said Andre Moura, Managing Director of New Mountain Capital. “The Board is confident that Michael is the right leader to build on that momentum and lead PerkinElmer with a clear focus on innovation, customer value, and sustained performance.”

Michael will lead the company with a strong focus on delivering greater customer value through innovation, service, and execution. He brings deep global leadership experience and a track record of working closely with customers and partners, building high—performing teams, and leading organizations through periods of transformation and growth.

“I am excited to join PerkinElmer at this important moment,” said Michael Stubblefield. “My immediate focus will be on listening closely to our customers and teams around the world, building on the strong foundation already in place, and executing with focus and clarity. Together, we will continue advancing PerkinElmer’s mission by delivering trusted scientific insights, innovative products, and leading laboratory solutions and services for a healthier, safer, and more sustainable world.”

Michael is a global chief executive with more than 30 years of experience in the life sciences and specialty materials sectors and also serves as a Senior Advisor to New Mountain Capital. Prior to joining PerkinElmer, Michael served as President and Chief Executive Officer of Avantor from 2014 to 2025. Earlier in his career, he held leadership roles at McKinsey & Company and Celanese. Michael holds an MBA from Texas A&M University–Corpus Christi and a Bachelor of Science in Chemical Engineering from the University of Utah.