EMC Completes Tender Offer for Isilon Systems

HOPKINTON, Mass. - December 20, 2010 -

EMC Corporation (NYSE: EMC), the world leader in information infrastructure solutions, today announced the successful completion of its tender offer for all outstanding shares of common stock of Isilon Systems, Inc. (NASDAQ: ISLN).

The tender offer expired at 12:00 midnight Eastern Standard Time (EST) on December 17, 2010. Isilon stockholders tendered a total of approximately 63,988,828 shares of Isilon common stock in the offer, representing approximately 95.5% of the outstanding Isilon shares. Together with the 0.4% of outstanding Isilon shares previously held by EMC, EMC now controls approximately 95.9% of Isilon shares outstanding. EMC has accepted for payment all shares tendered in the offer.

EMC expects to effect a second-step merger and complete its acquisition of Isilon tomorrow. All remaining outstanding Isilon shares, other than those held by Isilon, EMC or their respective wholly-owned subsidiaries and stockholders who properly perfect appraisal rights under Delaware law, will be converted in the merger into the right to receive $33.85 per share in cash.

Following the merger, Isilon common stock will cease to be traded on The NASDAQ Stock Market. Isilon will become a division within EMC's Information Infrastructure Products business. Sujal Patel, Isilon Founder, President and CEO, will report directly to Pat Gelsinger, President and Chief Operating Officer, EMC Information Infrastructure Products.