Submission of Matters to a Vote of Security Holders - Form 8-K

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

(b) On May 9, 2024, Axcelis Technologies, Inc. (the "Company") held its previously announced annual meeting of stockholders (the "Annual Meeting"). Effective at the Annual Meeting, Mary G. Puma, who served as Executive Chairperson of the Company's Board of Directors since May 11, 2023, resigned from that executive officer role concurrently with the end of her term on the Board of Directors. Ms. Puma was a named executive officer in the definitive proxy statement for the Annual Meeting (the "Proxy Statement"), which was filed with the Securities and Exchange Commission (the "Commission") on March 29, 2024. Ms. Puma will continue to serve as an Executive Advisor to the Company in accordance with the Amended and Restated Employment Agreement between the Company and Ms. Puma, dated February 24, 2023, included as Exhibit 10.1 to the Company's Current Report on Form 8-K filed with the Commission on April 18, 2023.