X0508 4 2024-10-05 0001110803 ILLUMINA, INC. ILMN 0001625263 Thaysen Jacob 5200 ILLUMINA WAY SAN DIEGO CA 92122 1 1 Chief Executive Officer 0 Common Stock 2024-10-05 4 F 0 914 140.66 D 44395 D In connection with Illumina's spin out of Grail, Inc., which was completed on June 24, 2024, all unvested equity award units were adjusted pursuant to Illumina's Amended and Restated 2015 Stock and Incentive Plan. Mr. Thaysen's unvested RSUs were increased by 746 units as a result of such adjustment. By: Robert Maynes for Jacob Thaysen 2024-10-08