144 0001195655 XXXXXXXX LIVE 0001030894 CELESTICA INC 001-14832 5140 YONGE STREET, SUITE 1900 TORONTO A6 M2N 6L7 416-448-5800 MIONIS ROBERT Officer Common Fidelity Brokerage Services LLC

245 Summer Street Boston MA 02110

60000 4770600.00 119600000 11/06/2024 NYSE Common 02/09/2021 stock award Celestica N 32262 02/09/2021 compensation Common 01/30/2019 Stock Award Celestica N 27738 01/30/2019 compensation N Mionis Investment Trust

5140 Yonge Street Suite 1900 Toronto A6 m2n6l7

Celestica 10/28/2024 150000 10449161.00 shares are being sold from MIONIS INVESTMENT TRUST U/A 5/8/01 11/06/2024 /s/ Audrey Skillern as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for MIONIS ROBERT