Mentor Graphics Announces Preliminary Fiscal 2009 Results and Schedules Fourth Quarter Conference Call

WILSONVILLE, Ore., February 10, 2009 – Mentor Graphics Corporation (NASDAQ: MENT) today announced preliminary fiscal fourth quarter 2009 results. For the quarter ended January 31, 2009, the company expects revenues of approximately $243 million, and to be profitable on a non-GAAP basis for the fiscal fourth quarter and fiscal year 2009. On a GAAP basis, the company may be profitable for the quarter, and expects to report a loss for the year, driven by non-cash charges. GAAP quarterly and annual results are likely to be affected by the results of a current evaluation of the carrying value of certain intangible assets.

The company emphasizes that these results are preliminary and subject to adjustments upon final closing of financial results and completion of the annual audit by independent auditors.

The company will release its results at 1:30 PM Pacific Time on February 26, 2009. A conference call will follow at 2:00 PM Pacific Time.

•What: Mentor Graphics live webcast of Fiscal Q4 Results Conference Call
•When: Thursday, February 26, 2009 at 2:00 PM Pacific Time
•Webcast: www.mentor.com/company/investor_relations

About Mentor Graphics
Mentor Graphics Corporation (Nasdaq: MENT) is a world leader in electronic hardware and software design solutions, providing products, consulting services and award-winning support for the world’s most successful electronics and semiconductor companies.  Established in 1981, the company reported revenues over the last 12 months of about $850 million and employs approximately 4,450 people worldwide. Corporate headquarters are located at 8005 S.W. Boeckman Road, Wilsonville, Oregon 97070-7777. World Wide Web site: http://www.mentor.com/.