Celestica, Inc.

Item 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. The Board of Directors (the “Board”) of Celestica Inc. (the “Company”) appointed Laurette T. Koellner as a member of the Board, effective October 27, 2025. A copy of the press release announcing the appointment is attached as Exhibit 99.1 to this report. The Board has determined that Ms. Koellner qualifies as an independent director under Canadian securities laws and NYSE listing standards. Ms. Koellner has been appointed to the Company’s Audit Committee, Human Resources and Compensation Committee and Nominating and Corporate Governance Committee. She will be compensated in accordance with the director compensation policies and principles applicable to the Board. Ms. Koellner was a long-standing member of the Board before unexpectedly stepping down in January 2025. She returns to the Board bringing extensive international business, financial and human resources experience as well as leadership experience for her roles on various public company boards. She most recently served as Executive Chairman of International Lease Finance Corporation, an aircraft leasing subsidiary of American International Group, Inc. from 2012 until its sale in 2014. Ms. Koellner retired as President of Boeing International, a division of The Boeing Company, in 2008. While at Boeing, she was President of Connexion by Boeing and a member of the Office of the Chairman, and served as the Executive Vice President, Internal Services, Chief Human Resources and Administrative Officer, President of Shared Services and Corporate Controller. She holds a Bachelor of Science degree in Business Management from the University of Central Florida and a Master of Business Administration from Stetson University, as well as a Certified Professional Contracts Manager designation from the National Contracts Management Association. Ms. Koellner currently serves on the Boards of Directors of The Goodyear Tire & Rubber Company (Chair), Papa John’s International, Inc. and Nucor Corporation. There are no arrangements or understandings between Ms. Koellner and any other person pursuant to which Ms. Koellner was selected as a director, and there are no transactions in which the Company is a participant and in which Ms. Koellner has a material interest subject to disclosure under Item 404(a) of Regulation S-K.