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) March 16, 2005 Farmer Mac Mortgage Securities Corporation (Exact name of registrant as specified in its charter) Delaware 333-80805 52-1779791 --------------------------- ------------ -------------- (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.) 1133 21st Street, N.W. 20036 Washington, D.C. ------------------------ -------------------------- (Zip Code) (Address of principal executive offices) Registrant's telephone number, including area code: (202) 872-7700 No Change (Former name or former address, if changed since last report) Item 8.01. Other Events. The Registrant registered issuances of Guaranteed Agricultural Mortgage-Backed Securities on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933 by a Registration Statement on Form S-3 (Registration File No. 333-80805) (the "Registration Statement"). The Registrant is filing, as Exhibit 23.6 attached hereto, the consent of Deloitte & Touche LLP to the use of its reports dated March 14, 2005 relating to the financial statements of, and management's report of the effectiveness of internal control over financial reporting of, the Federal Agricultural Mortgage Corporation, of which the Registrant is a wholly owned subsidiary. The reports of Deloitte & Touche LLP are incorporated into the Registration Statement by reference. Item 9.01. Financial Statements and Exhibits. (a) Not applicable. (b) Not applicable. (c) Exhibits: 23.6 Consent of Independent Registered Public Accounting Firm 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 hereunto duly authorized. FARMER MAC MORTGAGE SECURITIES CORPORATION By: /s/ Nancy E. Corsiglia --------------------------------- Name: Nancy E. Corsiglia Title: Vice President Dated: March 17, 2005 EXHIBIT INDEX Exhibit No. Description Page No. ----------- ----------- -------- 23.6 Consent of Independent Registered Public Accounting Firm 5