FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * CORSIGLIA NANCY E   2. Issuer Name and Ticker or Trading Symbol FEDERAL AGRICULTURAL MORTGAGE CORP [AGM] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) VP-Finance (Last) (First) (Middle) 1133 21ST STREET, N.W., SUITE 600 3. Date of Earliest Transaction (Month/Day/Year) 04/19/2006 (Street) WASHINGTON, DC 20036 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Class C Non-Voting Common Stock 04/19/2006   M(1)   2,862 A $ 15.125 10,135 D   Class C Non-Voting Common Stock 04/19/2006   S(1)(2)   2,862 D $ 29.1079 7,273 D

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Employee Stock Option (right to buy)

$ 15.125

04/19/2006

M(1)

2,862

(3)

06/01/2010

Class C Non-Voting Common Stock

61,907

$ 15.125

48,719

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
CORSIGLIA NANCY E 1133 21ST STREET, N.W. SUITE 600 WASHINGTON, DC 20036			VP-Finance

Signatures

Nancy E. Corsiglia		04/21/2006
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	This report reflects (on Table I) (i) the acquisition of 2,862 shares of Class C Non-Voting Common Stock through the partial exercise of a previously partially exercised employee stock option acquired by the reporting person in June 2000 pursuant to former Rule 16b-3; and (ii) the sale of 2,862 shares of Class C Stock; and (on Table II) the partial closing of the June 2000 employee stock option. The exercise of the June 2000 employee stock option is exempt under Section 16(b) under Rule 16b-6, but is reported herein pursuant to Rule 16a-4.
(2)	Transaction pursuant to plan under Rule 10b5-1.
(3)	The option was exercisable commencing June 1, 2000 with respect to 20,636 shares, commencing May 31, 2001 with respect to 20,636 shares and commencing May 31, 2002 with respect to 20,635 shares.

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