X0609 4 2026-08-25 0001633978 Lumentum Holdings Inc. LITE 0001573338 HURLSTON MICHAEL E. false C/O LUMENTUM HOLDINGS INC. 1001 RIDDER PARK DRIVE SAN JOSE CA 95131 true true false false President and CEO 0 Common Stock 2026-08-25 4 A 0 7941 0 A 187499 D Common Stock 2026-08-27 4 S 0 548 958.66 D 186951 D These securities are restricted stock units ("RSUs"). Each RSU represents a contingent right to receive, following vesting, one share of the Issuer's Common Stock. 1/3 of the shares shall vest one year from the grant date, and the remaining shares shall vest in eight (8) equal quarterly installments thereafter on the 15th of November, February, May and August, subject to the Reporting Person continuing to be an employee through each such date, or as provided under the Issuer's 2025 Equity Incentive Plan. These shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 28, 2026. /s/ Jae Kim as Attorney-in-Fact 2026-08-27