X0306 4 2016-01-26 0001110803 ILLUMINA INC ILMN 0001189130 FLATLEY JAY T 5200 ILLUMINA WAY SAN DIEGO CA 92122 1 Chief Executive Officer Common Stock 2016-01-26 4 M 0 20000 36.30 A 453423 D Common Stock 2016-01-26 4 S 0 3134 169.9679 D 450289 D Common Stock 2016-01-26 4 S 0 4735 170.8364 D 445554 D Common Stock 2016-01-26 4 S 0 5891 172.0486 D 439663 D Common Stock 2016-01-26 4 S 0 5940 172.8536 D 433723 D Common Stock 2016-01-26 4 S 0 300 174.0112 D 433423 D Common Stock 6000 I By Daughters Non-qualified Stock Option (Right to Buy) 36.30 2016-01-26 4 M 0 20000 0 D 2010-02-28 2020-01-28 Common Stock 20000 175000 D The sale was made pursuant to a 10b5-1 plan. Weighted average sale price representing 3,134 shares sold ranging from $169.30 to $170.23 per share. Number of shares sold 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 sale price representing 4,735 shares sold ranging from $170.30 to $171.29 per share. Number of shares sold 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 sale price representing 5,891 shares sold ranging from $171.43 to $172.41 per share. Number of shares sold 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 sale price representing 5,940 shares sold ranging from $172.45 to $173.28 per share. Number of shares sold 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 sale price representing 300 shares sold ranging from $174.00 to $174.03 per share. Number of shares sold at each separate price will be made available to the SEC staff, the issuer, or a security holder of the issuer upon request. By: Scott M. Davies for Jay T. Flatley 2016-01-28