ATLANTA, GA -- (Marketwire) -- 05/27/09 -- Holzer Holzer & Fistel, LLC announces it has filed a class action lawsuit in the United States District Court for the Southern District of California on behalf all persons or entities who purchased shares of Sequenom, Inc. ("Sequenom" or the "Company") (NASDAQ: SQNM) between June 4, 2008 and April 29, 2009 (the "Class Period").

The lawsuit alleges, among other things, that Sequenom violated the Securities Exchange Act of 1934 by issuing materially false and misleading statements regarding the Company's Down syndrome test under development. Specifically, the complaint alleges that certain officers and directors of the Company failed to properly disclose that Sequenom employees mishandled test data and results regarding the Down syndrome test.

If you purchased shares of Sequenom common stock during the Class Period, you have the legal right to petition the Court to be appointed a "lead plaintiff." A lead plaintiff is a representative party that acts on behalf of other class members in directing the litigation. Any such request must satisfy certain criteria and be made no later than June 30, 2009. Any member of the purported class may move the Court to serve as lead plaintiff through counsel of their choice, or may choose to do nothing and remain an absent class member. If you are a Sequenom investor and would like to discuss a potential lead plaintiff appointment, or your rights and interests with respect to the lawsuit, you may contact Michael I. Fistel, Jr., Esq., or Marshall P. Dees, Esq. via email at mfistel@holzerlaw.com, or mdees@holzerlaw.com, or via toll-free telephone at (888) 508-6832.

Holzer Holzer & Fistel, LLC is an Atlanta, Georgia law firm that dedicates its practice to vigorous representation of shareholders and investors in litigation nationwide, including shareholder class action and derivative litigation. More information about the firm is available through its website, www.holzerlaw.com and upon request from the firm.