X0508 4 2026-02-27 0001633978 Lumentum Holdings Inc. LITE 0001561100 Ali Wajid C/O LUMENTUM HOLDINGS INC. 1001 RIDDER PARK DRIVE SAN JOSE CA 95131 false true false false EVP & CHIEF FINANCIAL OFFICER 1 Common Stock 2026-02-27 4 S 0 200 677.7775 D 71389 D Common Stock 2026-02-27 4 S 0 424 679.95 D 70965 D Common Stock 2026-02-27 4 S 0 500 681.481 D 70465 D Common Stock 2026-02-27 4 S 0 200 685.495 D 70265 D Common Stock 2026-02-27 4 S 0 160 686.5438 D 70105 D Common Stock 2026-02-27 4 S 0 475 688.4164 D 69630 D Common Stock 2026-02-27 4 S 0 155 690.1261 D 69475 D Common Stock 2026-02-27 4 S 0 731 692.0239 D 68744 D Common Stock 2026-02-27 4 S 0 450 694.7644 D 68294 D Common Stock 2026-02-27 4 S 0 355 696.117 D 67939 D Common Stock 2026-02-27 4 S 0 300 697.0833 D 67639 D Common Stock 2026-02-27 4 S 0 1108 698.0997 D 66531 D Common Stock 2026-02-27 4 S 0 244 699.2798 D 66287 D These shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 28, 2025. These sales were executed in multiple trades at prices ranging from $677.705 to $677.85. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide full information regarding the number of shares sold at each separate price, within the ranges set forth in footnotes (2) through (13) to this Form 4, upon request, to the staff of the Securities and Exchange Commission, the Issuer or a security holder of the Issuer. These sales were executed in multiple trades at prices ranging from $680.99 to $681.805. These sales were executed in multiple trades at prices ranging from $685.26 to $685.73. These sales were executed in multiple trades at prices ranging from $686.54 to $686.55. These sales were executed in multiple trades at prices ranging from $688.07 to $688.85. These sales were executed in multiple trades at prices ranging from $690.01 to $690.31. These sales were executed in multiple trades at prices ranging from $692.00 to $692.855. These sales were executed in multiple trades at prices ranging from $694.255 to $694.99. These sales were executed in multiple trades at prices ranging from $695.75 to $696.65. These sales were executed in multiple trades at prices ranging from $696.875 to $697.50. These sales were executed in multiple trades at prices ranging from $698.00 to $698.50. These sales were executed in multiple trades at prices ranging from $699.00 to $699.495. /s/ Jae Kim as Attorney-in-Fact 2026-03-02