ILLUMINA, INC. — Director's Dealing 2011

May 13, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ILLUMINA INC (ILMN)
CIK: 0001110803
Period of Report: 2011-05-11

Reporting Person: WALT DAVID R (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-05-11	Common Stock	M	3300	$5.15	Acquired	999626	Direct
2011-05-11	Common Stock	S	3300	$74.6724	Disposed	996326	Direct
2011-05-11	Common Stock	M	1700	$5.15	Acquired	998026	Direct
2011-05-11	Common Stock	S	1700	$75.671	Disposed	996326	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-05-11	Non-Qualified Stock Option (right to buy)	$5.15	M	5000	Disposed	2011-05-24	Common Stock (5000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	82960	Indirect

Footnotes

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

F2: Weighted average sale price representing 3,300 shares sold ranging from $74.34 to $75.15 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 1,700 shares sold ranging from $75.43 to $75.95 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.