X0306 4 2019-08-22 0 0001633978 Lumentum Holdings Inc. LITE 0001648170 Hamel Judy G C/O LUMENTUM HOLDINGS INC. 400 NORTH MCCARTHY BLVD. MILPITAS CA 95035 0 1 0 0 SVP, GC and Secretary Common Stock 2019-08-22 4 A 0 10452 0.00 A 52325 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. The RSUs vest as to 1/3 of the shares on August 22, 2019, and the remaining shares shall vest in eight 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 2015 Equity Incentive Plan. /s/ Judy G. Hamel 2019-08-26