8-K 1 mam03005.txt DECEMBER 8K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington D. C. 20549 Form 8-K Current Report Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 26, 2003 MASTR ADJUSTABLE RATE MORTGAGE TRUST Mortgage Pass-Through Certificates, Series 2003-5 Trust (Exact name of registrant as specified in its charter) New York (governing law of 333-106982-05 54-2132853 Pooling and Servicing Agreement) (Commission 54-2132854 (State or other File Number) 54-2132855 jurisdiction IRS EIN of Incorporation) c/o Wells Fargo Bank Minnesota, N.A., 9062 Old Annapolis Road Columbia, MD 21045 (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code: (410) 884-2000 (Former name or former address, if changed since last report) ITEM 5. Other Events On December 26, 2003 a distribution was made to holders of MASTR ADJUSTABLE RATE MORTGAGES TRUST, Mortgage Pass-Through Certificates, Series 2003-5 Trust. ITEM 7. Financial Statements and Exhibits (c) Exhibits furnished in accordance with Item 601(a) of Regulation S-K Exhibit Number Description EX-99.1 Monthly report distributed to holders of Mortgage Pass-Through Certificates, Series 2003-5 Trust, relating to the December 26, 2003 distribution. Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. MASTR ADJUSTABLE RATE MORTGAGES TRUST Mortgage Pass-Through Certificates, Series 2003-5 Trust By: Wells Fargo Bank Minnesota, N.A. as Master Servicer By: /s/ Beth Belfield as Assistant Vice President By: Beth Belfield as Assistant Vice President Date: 12/30/03 INDEX TO EXHIBITS Exhibit Number Description EX-99.1 Monthly report distributed to holders of Mortgage Pass-Through Certificates, Series 2003-5 Trust, relating to the December 26, 2003 distribution. EX-99.1

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