Lumentum Holdings Inc. 8-K

What Happened Lumentum Holdings (LITE) filed an 8-K (Item 5.02) reporting that on December 29, 2025 Chief Accounting Officer and Senior Vice President, Finance Matthew Sepe notified the company of his planned retirement. Mr. Sepe will remain Senior Vice President, Finance until his retirement in fall 2026 and will step down as Chief Accounting Officer on the later of February 6, 2026 or the date Lumentum files its Form 10‑Q for the quarter ended December 27, 2025 (the “Effective Date”). The Board has appointed Eric Chang, who recently joined as Senior Vice President, Finance, to serve as Chief Accounting Officer effective on that Effective Date.

Key Details

• Date notice given: December 29, 2025.
• CAO transition effective: later of February 6, 2026 or the date Lumentum files its 10‑Q for the quarter ended December 27, 2025.
• Successor: Eric Chang (age 52); recent roles include CFO of Digilens (Jul–Nov 2025) and VP/Chief Accounting Officer of Edgio (Oct 2022–Jun 2025).
• Compensation/agreements: Mr. Chang’s pay is not expected to change for the CAO role; he will sign Lumentum’s standard indemnification agreement. No related-party or family relationships disclosed.

Why It Matters This is a planned, orderly change in Lumentum’s accounting leadership with a named successor, minimizing immediate disruption. The Effective Date is linked to a regulatory filing (the 10‑Q) or a fixed date, so investors should note the CAO role will not change instantly but will transition in early 2026 or upon the company’s next quarterly filing. Eric Chang brings public-company accounting and finance experience, which supports continuity in financial reporting and controls.