Saxena White P.A. Has Filed a Securities Fraud Class Action Against Sequenom, Inc.

BOCA RATON, FL--(Marketwire - May 7, 2009) - Notice is hereby given that Saxena White P.A. has filed suit on behalf of shareholders of Sequenom, Inc. ("Sequenom" or the "Company") (NASDAQ: SQNM) in the United States District Court for the Southern District of California.

The complaint seeks damages for violations of federal securities laws on behalf of all investors who purchased Sequenom stock between June 4, 2008 and April 29, 2009, inclusive (the "Class Period"). Sequenom is a genomics company that provides genetic analysis products that assist in biomedical research.

The complaint alleges that after months of touting the Company's accomplishments, on April 29, 2009, Sequenom issued a press release stating that its employees mishandled R&D test data for SEQureDx, which was being developed as a non-invasive prenatal test for Down syndrome. Sequenom also disclosed that the commercial launch of SEQureDx would be delayed and that: (1) the Company suspended four employees; (2) the Company formed a special committee of independent directors to oversee an independent investigation of the employees' activity related to the test data and results; (3) the committee engaged independent counsel to assist the committee in the conduct of the investigation; (4) the Company's previous press releases and public SEC filings concerning SEQureDx could no longer be relied upon; and (5) due to these developments, the Company is now reviewing the test results for all its products, not just SEQureDx.

As a result of this news, the Company's shares declined $11.29 per share, or 75 percent, to close on April 30, 2009, at $3.62 per share, on unusually heavy trading volume.

A copy of the complaint may be viewed at the firm's website at www.saxenawhite.com. You may also contact the firm directly by emailing jwhite@saxenawhite.com or gstone@saxenawhite.com, or calling (561) 394-3399.

If you purchased Sequenom stock between June 4, 2008 and April 29, 2009, you may wish to contact Joe White or Greg Stone at Saxena White P.A. to discuss your rights and interests:

If you wish to apply to be the lead plaintiff in this action, a motion on your behalf must be filed with the court no later than June 30, 2009. You may contact Saxena White P.A. to discuss your rights regarding the appointment of lead plaintiff and your interest in the class action. Please note that you may also retain counsel of your choice and need not take any action at this time to be a class member.

Saxena White P.A., which has offices in Boca Raton and Boston, specializes in prosecuting securities fraud and complex class actions on behalf of institutions and individuals. Currently serving as lead counsel in numerous securities fraud class actions nationwide, the firm has recovered hundreds of millions of dollars on behalf of injured investors and is active in major litigation pending in federal and state courts throughout the United States.

Contact Information: Joseph E. White, III Greg Stone Saxena White P.A. 2424 North Federal Highway, Suite 257 Boca Raton, FL 33431 Tel: (561) 394-3399 Fax: (561) 394-3382 www.saxenawhite.com