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cls-20260128false000103089400010308942026-01-282026-01-28

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): January 28, 2026

Celestica Inc. (Exact name of registrant as specified in its charter)

Ontario, Canada001-1483298-0185558 (State or other jurisdiction of incorporation)(Commission File Number)(IRS Employer Identification No.)

5140 Yonge Street, Suite 1900

M2N 6L7

Toronto, Ontario, Canada (Zip Code) (Address of principal executive officers)

(416) 448-2211 (Registrant's telephone number, including area code)

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)

Securities registered pursuant to Section 12(b) of the Act: Title of each classTradingName of each exchange on which registered Common Shares without par valueCLSNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company  ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02.    Results of Operations and Financial Condition.

On January 28, 2026, Celestica Inc. (the "Company") issued a press release and will hold a conference call on January 29, 2026 regarding its financial results for the quarter and full year ended December 31, 2025. A copy of the press release is furnished as Exhibit 99.1 to this report.

The information furnished with this Item 2.02, including Exhibit 99.1, shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any other filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such a filing.

Item 9.01.    Financial Statements and Exhibits.

Exhibit No.Description

99.1Press Release of the Company dated January 28, 2026

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

CELESTICA INC.

Date: January 28, 2026

By:/s/ Douglas Parker Name: Douglas Parker Title: Chief Legal Officer and Corporate Secretary

cls-20251027false000103089400010308942025-10-272025-10-27

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 27, 2025

Celestica Inc. (Exact name of registrant as specified in its charter)

Ontario, Canada001-1483298-0185558 (State or other jurisdiction of incorporation)(Commission File Number)(IRS Employer Identification No.)

5140 Yonge Street, Suite 1900

M2N 6L7

Toronto, Ontario, Canada (Zip Code) (Address of principal executive officers)

(416) 448-2211 (Registrant's telephone number, including area code)

Not Applicable (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)

Securities registered pursuant to Section 12(b) of the Act: Title of each classTradingName of each exchange on which registered Common Shares without par valueCLSNew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company  ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02.    Results of Operations and Financial Condition.

On October 27, 2025, Celestica Inc. (the "Company") issued a press release and will hold a conference call on October 28, 2025 regarding its financial results for the quarter ended September 30, 2025. A copy of the press release is furnished as Exhibit 99.1 to this report.

The information furnished with this Item 2.02, including Exhibit 99.1, shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any other filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such a filing.

Item 9.01.    Financial Statements and Exhibits.

Exhibit No.Description

99.1Press Release of the Company dated October 27, 2025

104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

CELESTICA INC.

Date: October 27, 2025 By:/s/ Douglas Parker Name: Douglas Parker Title: Chief Legal Officer and Corporate Secretary