ILLUMINA INC

During the quarterly period ended December 29, 2024, the following directors and officers adopted, modified or terminated 10b5-1 plans:

•On November 6, 2024, Frances Arnold, a member of our Board of Directors, entered in a new arrangement intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). The arrangement terminates on February 27, 2026 and provides for the sale of up to 120 shares.

•On November 7, 2024, Jakob Wedel, our Chief Strategy and Corporate Development Officer, entered in a new arrangement intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). The arrangement terminates on May 29, 2026 and provides for the sale of up to 3,182 shares.

•On November 8, 2024, Scott Davies, our Interim General Counsel, entered in a new arrangement intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). The arrangement terminates on December 16, 2025 and provides for the sale of up to 3,301 shares.

•On November 13, 2024, Patricia Leckman, our Chief People Officer, entered in a new arrangement intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). The arrangement terminates on November 14, 2025 and provides for the sale of up to 1,615 shares.

Other than as disclosed above, during the quarterly period ended December 29, 2024, none of the Company’s directors or officers adopted, modified or terminated any “Rule 10b5-1 trading arrangement” or any “non-Rule 10b5-1 trading arrangement,” in each case as such term is defined in Item 408 of Regulation S-K.