X0508 4 2025-05-12 0001110803 ILLUMINA, INC. ILMN 0001625263 Thaysen Jacob 5200 ILLUMINA WAY SAN DIEGO CA 92122 1 1 Chief Executive Officer 0 Common Stock 2025-05-12 4 P 0 1200 79.70 A 72240 D Common Stock 2025-05-12 4 P 0 3700 80.92 A 75940 D Common Stock 2025-05-12 4 P 0 1400 81.54 A 77340 D Common Stock 2025-05-12 4 P 0 200 82.66 A 77540 D Common Stock 2025-05-13 4 P 0 4946 80.70 A 82486 D Common Stock 2025-05-13 4 P 0 804 81.56 A 83290 D Common Stock 2025-05-13 4 P 0 100 82.26 A 83390 D Weighted average purchase price representing 1,200 shares purchased ranging from $79.27 to $80.22 per share. Number of shares purchased at each separate price will be made available to the SEC staff, the issuer, or a security holder of the issuer upon request. Weighted average purchase price representing 3,700 shares purchased ranging from $80.33 to $81.31 per share. Number of shares purchased at each separate price will be made available to the SEC staff, the issuer, or a security holder of the issuer upon request. Weighted average purchase price representing 1,400 shares purchased ranging from $81.37 to $81.61 per share. Number of shares purchased at each separate price will be made available to the SEC staff, the issuer, or a security holder of the issuer upon request. Weighted average purchase price representing 200 shares purchased ranging from $82.38 to $82.93 per share. Number of shares purchased at each separate price will be made available to the SEC staff, the issuer, or a security holder of the issuer upon request. Weighted average purchase price representing 4,946 shares purchased ranging from $80.21 to $81.17 per share. Number of shares purchased at each separate price will be made available to the SEC staff, the issuer, or a security holder of the issuer upon request. Weighted average purchase price representing 804 shares purchased ranging from $81.22 to $82.12 per share. Number of shares purchased at each separate price will be made available to the SEC staff, the issuer, or a security holder of the issuer upon request. By: Robert Maynes for Jacob Thaysen 2025-05-14