X0306 4 2015-12-08 0001110803 ILLUMINA INC ILMN 0001189130 FLATLEY JAY T 5200 ILLUMINA WAY SAN DIEGO CA 92122 1 Chief Executive Officer Common Stock 2015-12-08 4 A 0 9630 0 A 433423 D Common Stock 2015-12-08 4 M 0 25000 27.97 A 458423 D Common Stock 2015-12-08 4 S 0 6384 174.1046 D 452039 D Common Stock 2015-12-08 4 S 0 2851 175.0868 D 449188 D Common Stock 2015-12-08 4 S 0 463 176.1943 D 448725 D Common Stock 2015-12-08 4 S 0 4068 177.1334 D 444657 D Common Stock 2015-12-08 4 S 0 3270 178.2802 D 441387 D Common Stock 2015-12-08 4 S 0 1764 179.1966 D 439623 D Common Stock 2015-12-08 4 S 0 6200 179.9947 D 433423 D Common Stock 6000 I By Daughters Performance Shares 2015-12-08 4 A 0 28888 0 A 2018-12-30 Common Stock 28888 28888 D Non-qualified Stock Option (Right to Buy) 27.97 2015-12-08 4 M 0 25000 0 D 2009-03-01 2019-01-29 Common Stock 25000 15000 D Grant of restricted stock units that vest as follows: 25% of the shares subject to the award become vested on November 5, 2016, November 5, 2017, November 5, 2018, and November 5, 2019, subject to awardee's continuing to be a service provider on such dates. The sale was made pursuant to a 10b5-1 plan. Weighted average sale price representing 6,384 shares sold ranging from $173.56 to $174.53 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 2,851 shares sold ranging from $174.59 to $175.49 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 463 shares sold ranging from $175.65 to $176.32 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 4,068 shares sold ranging from $176.68 to $177.58 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 3,270 shares sold ranging from $177.75 to $178.73 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 1,764 shares sold ranging from $178.78 to $179.72 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 6,200 shares sold ranging from $179.80 to $180.41 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. Each performance stock unit represents a contingent right to receive one share of common stock based on the Company's earnings per share for the fiscal year ending December 30, 2018. The number of shares issued will range from 0% to 150% of the amount specified above, based on the Company's actual earnings per share for the fiscal year ending December 30, 2018, relative to pre-defined objectives, subject to awardee's continuing to be a service provider on such dates. By: Scott M. Davies for Jay T. Flatley 2015-12-10