================================================================================ 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): Feburary 11, 2003 AMERIQUEST MORTGAGE SECURITIES INC. (as depositor under the Pooling and Servicing Agreement, dated as of January 1, 2003, providing for the issuance of Asset-Backed Pass-Through Certificates, Series 2003-AR1) Ameriquest Mortgage Securities Inc. ----------------------------------- (Exact name of registrant as specified in its charter) - -------------------------------------------------------------------------------- Delaware 333-99117 33-0885129 - ---------------------------- ------------ --------------------- (State or Other Jurisdiction (Commission (I.R.S. Employer of Incorporation) File Number) Identification Number) 1100 Town & Country Road, Suite 1100 Orange, California 92868 - ---------------------------------------- ---------- (Address of Principal Executive Offices) (Zip Code) Registrant's telephone number, including area code: (714) 564-0660 --------------- ================================================================================ -2- Item 2. ACQUISITION OR DISPOSITION OF ASSETS Description of the Certificates and the Mortgage Pool On January 17, 2003, a series of certificates, entitled Ameriquest Mortgage Securities Inc. Asset-Backed Pass-Through Certificates, Series 2003-AR1 (the "Certificates"), were issued pursuant to a pooling and servicing agreement, dated as of January 1, 2003 (the "Agreement"), attached hereto as Exhibit 4.1, among Ameriquest Mortgage Securities Inc. as depositor (the "Depositor"), Ameriquest Mortgage Company ("Ameriquest") as master servicer (the "Master Servicer") and Deutsche Bank National Trust Company as trustee (the "Trustee"). The Certificates consist of ten classes of certificates (collectively, the "Certificates"), designated as the "Class A-1 Certificates", "Class A-2 Certificates", "Class M-1 Certificates", "Class M-2 Certificates", "Class M-3 Certificates", "Class M-4 Certificates", "Class CE Certificates", "Class P Certificates" and "Class R Certificates". The Certificates evidence in the aggregate the entire beneficial ownership interest in a trust fund (the "Trust Fund"), consisting of a pool of mortgage loans (the "Mortgage Pool'") of conventional, one- to four- family, adjustable rate and fixed rate, first lien mortgage loans having original terms to maturity up to 30 years (the "Mortgage Loans"). The Mortgage Pool consist of Mortgage Loans having an aggregate principal balance of $400,005,198.88 as of January 1, 2003 (the "Cut-off Date"). The Mortgage Loans were purchased pursuant to (i) the Mortgage Loan Purchase Agreement, dated January 15, 2003 between Ameriquest as seller and the Depositor (the "Mortgage Loan Purchase Agreement"). The Class A-1 Certificates, the Class A-2 Certificates, the Class M-1 Certificates, the Class M-2 Certificates and the Class M-3 Certificates, the Class M-4 Certificates, the Class CE Certificates, the Class P Certificates and the Class R Certificates were sold by the Depositor to UBS Warburg LLC (the "Underwriter"), pursuant to an Underwriting Agreement, dated January 15, 2003 (the "Underwriting Agreement") among the Depositor, Ameriquest and the Underwriter. -3- The Certificates have the following initial Certificate Balances and Pass-Through Rates: Initial Certificate Principal Class Balance or Notional Amount Pass-Through Rate -------- -------------------------------- ------------------- A-1 $238,211,000.00 Variable(1) A-2 $109,794,000.00 Variable(1) M-1 $17,000,000.00 Variable(1) M-2 $14,000,000.00 Variable(1) M-3 $12,000,000.00 Variable(1) M-4 $3,000,000.00 6.00%(2) CE $6,000,098.88 Variable P $100.00 Variable R 100% N/A _______________ (1) Subject to a rate cap as described in the Pooling and Servicing Agreement (2) Subject to increase and subject to a rate cap, as described in the Pooling and Servicing Agreement The Certificates, other than the Class CE Certificates, the Class P Certificates, the and the Class R Certificates, and the Mortgage Loans are more particularly described in the Prospectus, dated November 11, 2002, and the Prospectus Supplement, dated January 15, 2003, as previously filed with the Securities and Exchange Commission pursuant to Rule 424(b). The Class CE Certificates, the Class P Certificates and the Class R Certificates have not been and will not be publicly offered by the Depositor. Capitalized terms used but not otherwise defined herein shall have the meanings assigned to them in the Prospectus Supplement. -4- Item 7. FINANCIAL STATEMENTS AND EXHIBITS (a) Not applicable (b) Not applicable (c) Exhibits Exhibit No. Description ----------- ----------- 4.1 Pooling and Servicing Agreement, dated as of January 1, 2003, by and among Ameriquest Mortgage Securities Inc. as Depositor, Ameriquest Mortgage Company as Master Servicer and Deutsche Bank National Trust Company as Trustee relating to the Series 2003-AR1 Certificates. SIGNATURES 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 thereunto duly authorized. Dated: February 11, 2003 AMERIQUEST MORTGAGE SECURITIES INC. By: /s/ John P. Grazer ------------------------ Name: John P. Grazer Title: CFO Index to Exhibits ----------------- Sequentially Exhibit No. Description Numbered Page - ----------- ----------- ------------- 4.1 Pooling and Servicing Agreement, dated as of 7 January 1, 2003, by and among Ameriquest Mortgage Securities Inc. as Depositor, Ameriquest Mortgage Company as Master Servicer and Deutsche Bank National Trust Company as Trustee relating to the Series 2003-AR1 Certificates. Exhibit 4.1