On February 16, 2023, Thomas C. Teebagy, Jr. informed Allegro MicroSystems, Inc. that he will retire from the Company, effective June 2, 2023 and resign from his position as Senior Vice President of Operations and Quality, effective March 6, 2023. On February 16, 2023, the Board of Directors of the Company appointed Roald G. Webster to serve as Vice President, Chief Accounting Officer of the Company, effective March 20, 2023. Mr. Webster, age 45, is a certified professional accountant with over 20 years of accounting experience.

Prior to joining the Company, Mr. Webster served as Vice President and Corporate Controller at Bruker Corporation from April 2018 to the present and as Director of Corporate Accounting from April 2017 through April 2018. Prior to Bruker, Mr. Webster served as Director of Financial Reporting and Technical Accounting at Agios Pharmaceuticals, Inc. from November 2013 through April 2017. Earlier in his career, Mr. Webster held positions as an audit Senior Manager at Deloitte Touche Tohmatsu Limited, an Audit Director at RSM US LLP, and as an audit manager at Feeley & Driscoll, P.C. Mr. Webster is a graduate of Boston College Carroll School of Management and of Bentley College, where he earned a B.S. in accountancy.