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As filed with the Securities and Exchange Commission on February 25 , 2021 ( Mark One ) ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31 , 2020 1934 UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON , D.C. 20549 Form 10 - K TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF For the transition period from to Commission File Number 001-14951 FARMER MAC FEDERAL AGRICULTURAL MORTGAGE CORPORATION ( Exact name of registrant as specified in its charter ) Federally chartered instrumentality of the United States ( State or other jurisdiction of incorporation or organization ) 1999 K Street , N.W. , 4th Floor , Washington , DC ( Address of principal executive offices ) or Securities registered pursuant to Section 12 ( b ) of the Act : Title of each class ( 202 ) 872-7700 ( Registrant's telephone number , including area code ) Class A voting common stock Class C non - voting common stock 6.000 % Fixed - to - Floating Rate Non - Cumulative Preferred Stock , Series C 5.700 % Non - Cumulative Preferred Stock , Series D 5.750 % Non - Cumulative Preferred Stock , Series E 5.250 % Non - Cumulative Preferred Stock , Series F ( I.R.S. employer identification number ) Trading symbol AGM.A AGM AGM.PRC AGM.PRD AGM.PRE AGM.PRF 52-1578738 Securities registered pursuant to Section 12 ( g ) of the Act : Class B voting common stock 20006 ( Zip code ) Exchange on which registered New York Stock Exchange New York Stock Exchange New York Stock Exchange New York Stock Exchange New York Stock Exchange New York Stock Exchange Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes O No X Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15 ( d ) of the Act .