ILLUMINA, INC. — Director's Dealing 2018

May 4, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ILLUMINA INC (ILMN)
CIK: 0001110803
Period of Report: 2018-05-01

Reporting Person: BOWMAN A BLAINE (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-05-01	Common Stock	M	1800	$44.51	Acquired	18668	Direct
2018-05-01	Common Stock	M	1200	$71.09	Acquired	19868	Direct
2018-05-01	Common Stock	S	1400	$240.902	Disposed	18468	Direct
2018-05-01	Common Stock	S	1400	$241.805	Disposed	17068	Direct
2018-05-01	Common Stock	S	200	$242.73	Disposed	16868	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2018-05-01	Non-qualified Stock Option (Right to Buy)	$44.51	M	1800	Disposed	2022-04-18	Common Stock (1800)	Direct
2018-05-01	Non-qualified Stock Option (Right to Buy)	$71.09	M	1200	Disposed	2023-05-29	Common Stock (1200)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	670	Indirect
Common Stock	198	Indirect

Footnotes

F1: The sale was made pursuant to a 10b5-1 plan.

F2: Weighted average sale price representing 1,400 shares sold ranging from $240.34 to $241.31 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.

F3: Weighted average sale price representing 1,400 shares sold ranging from $241.45 to $242.35 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.

F4: Weighted average sale price representing 200 shares sold ranging from $242.66 to $242.80 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.