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Lumentum Holdings Inc.

For the period ended Sep 27, 2025. Filed Nov 5, 2025.

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A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 27, 2025 · Filed Nov 5, 2025

LITE$596.16+10.7%Stored close · as of Nov 9, 2026

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Item 6. Exhibits

The following exhibits are filed herewith or are incorporated by reference to exhibits previously filed with the Securities and Exchange Commission.

Exhibit · Incorporated by Reference · Filed
No.Exhibit DescriptionFormFile No.ExhibitFiling DateHerewith
4.1Indenture, dated September 8, 2025, between Lumentum Holdings Inc. and U.S. Bank Trust Company, National Association.8-K001-368614.19/8/2025
4.2Form of 0.375% Convertible Senior Note due 2032 (included in Exhibit 4.1).8-K001-368614.29/8/2025
10.1Form of Capped Call Confirmation.8-K001-3686110.19/8/2025
31.1Certification of the Chief Executive Officer pursuant to Securities Exchange Act Rules 13a-14(a) and 15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.X
31.2Certification of the Chief Financial Officer pursuant to Securities Exchange Act Rules 13a-14(a) and 15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.X
32.1†Certification of the Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.X
32.2†Certification of the Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.X
101The following financial information from Lumentum Holdings Inc.’s Quarterly Report on Form 10-Q for the fiscal quarter ended September 27, 2025 formatted in Inline XBRL (eXtensible Business Reporting Language): (i) Condensed Consolidated Statements of Operations for the three months ended September 27, 2025 and September 28, 2024; (ii) Condensed Consolidated Statements of Comprehensive Income (Loss) for the three months ended September 27, 2025 and September 28, 2024; (iii) Condensed Consolidated Balance Sheets as of September 27, 2025 and June 28, 2025; (iv) Condensed Consolidated Statements of Cash Flows for the three months ended September 27, 2025 and September 28, 2024; (v) Condensed Consolidated Statements of Stockholders’ Equity for the three months ended September 27, 2025 and September 28, 2024, and (vi) Notes to Condensed Consolidated Financial Statements.X
104Cover Page Interactive Data File, formatted in Inline XBRL (included in Exhibit 101).X

† The certifications furnished in Exhibits 32.1 and 32.2 that accompany this report are not deemed filed with the Securities and Exchange Commission and are not to be incorporated by reference into any filing of the Registrant under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, whether made before or after the date of this report, irrespective of any general incorporation language contained in such filing.

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