SAN DIEGO — Illumina, Inc. (NASDAQ:ILMN), a leading developer, manufacturer and marketer of life science tools and integrated systems for the analysis of genetic variation and function, today recommended that its stockholders take no action at this time in response to Roche’s announcement that it is now offering to acquire Illumina for $51.00 per share in cash.

Consistent with its fiduciary duties and responsibilities, and in consultation with its financial and legal advisors, Illumina’s Board of Directors will thoroughly review Roche’s revised proposal and make a recommendation to stockholders regarding the proposal in due course.

Previously, on February 7, 2012, Illumina’s Board of Directors rejected Roche’s $44.50 per share cash tender offer and recommended that stockholders not tender their shares.

Goldman, Sachs & Co. and BofA Merrill Lynch are acting as financial advisors and Dewey & LeBoeuf LLP is acting as legal counsel to Illumina.

About Illumina

Illumina (www.illumina.com) is a leading developer, manufacturer, and marketer of life science tools and integrated systems for the analysis of genetic variation and function. We provide innovative sequencing and array-based solutions for genotyping, copy number variation analysis, methylation studies, gene expression profiling, and low-multiplex analysis of DNA, RNA, and protein. We also provide tools and services that are fueling advances in consumer genomics and diagnostics. Our technology and products accelerate genetic analysis research and its application, paving the way for molecular medicine and ultimately transforming healthcare.