144 0001972990 XXXXXXXX LIVE 0001030894 CELESTICA INC. 001-14832 5140 Yonge Street, Suite 1900 Toronto A6 M2N 6L7 416-448-5800 CHAWLA MANDEEP Officer Common Shares RBC Dominion Securities Inc.

200 Bay St., 2nd Floor Toronto A6 M5J 2W7

17000 5994030 114982086 07/31/2026 NYSE Common Shares 02/02/2026 Performance share unit vesting Celestica Inc. N 17000 02/02/2026 N/A Y Sales to be made pursuant to a plan intended to comply with Rule 10b5-1(c), entered into on March 12, 2026, at which time the undersigned was not aware of material non-public information. The filing of this Form 144 shall not be construed as an admission that the undersigned is an affiliate of the Issuer. 07/31/2026 03/12/2026 /s/ Mandeep Chawla