Cohen Milstein Announces Filing of Class Action Suit Involving Mortgage Pass-Through Certificates of Mortgage Asset Securitization Transactions, Inc.

Please be advised that a class action lawsuit (the “Action”) has been filed on behalf of purchasers of MASTR Adjustable Rate Mortgages Trust Mortgage Pass-Through Certificates, Series 2007-3 (the “Certificates”) that were issued pursuant and traceable to an alleged materially misleading Registration Statement and Prospectus Supplement on May 14, 2007. The Action has been filed in the United States District Court in the District of New Jersey, and has been assigned to the Honorable Dennis M. Cavanaugh, Docket No. 10-cv-898 (DMC). The law firm representing Plaintiff in the Action is Cohen Milstein Sellers & Toll PLLC (“Cohen Milstein”).

The Action alleges that the Registration Statement, initially filed on December 16, 2005 and amended thereafter on April 4, 2006 (the “Registration Statement”), and subsequently-filed Prospectus Supplement issued pursuant thereto on May 14, 2007 (collectively, the “Offering Documents”) contained material misstatements and omissions in violation of Sections 11, 12 and 15 of the Securities Act of 1933.

The Certificates issued were supported by large pools of mortgage loans generally secured by first liens on residential properties, including conventional, adjustable rate and negative amortization mortgage loans. The Action alleges that the Offering Documents included material misstatements and/or omissions concerning, among other things: (i) the underwriting standards purportedly used in connection with the origination of the underlying mortgage loans; (ii) the maximum loan-to-value ratios used to qualify borrowers; (iii) the appraisals of properties underlying the mortgage loans; and (iv) the debt-to-income ratios permitted on the loans. As a result of the alleged misstatements and omissions, the Certificates were secured by assets that had a much greater risk profile than represented in the Offering Documents causing the Credit Ratings Agencies to assign faulty and inflated credit ratings to the Certificates.

By early 2009, the amount of uncollectible mortgage loans securing the Certificates began to be revealed to the public, and the Ratings Agencies began to downgrade the Certificates’ credit ratings significantly. The delinquency and foreclosure rates of the mortgage loans securing the Certificates have continued to sky-rocket. As a result, the Certificates have declined precipitously in value.

If you wish to serve as lead plaintiff, you must move the Court no later than 60 days from today. If you wish to discuss this action or have any questions concerning this notice or your rights or interests, you may contact Plaintiff’s counsel:

If you are a member of this putative class, you can view a copy of the complaint as filed at http://www.cohenmilstein.com/cases/222/ubs-mortgage-backed-securities-litigation. Any member of the putative 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.

Cohen Milstein has significant experience in prosecuting investor securities class actions. The firm has offices in Washington, D.C., New York, Philadelphia and Chicago, and is active in major litigation pending in federal and state courts throughout the nation. You may visit our website at www.cohenmilstein.com for more information about the firm. The firm’s reputation for excellence has been recognized on repeated occasions by courts which have appointed the firm to lead positions in complex multi-district or consolidated litigation.