<SEC-DOCUMENT>0000845877-25-000129.txt : 20250402
<SEC-HEADER>0000845877-25-000129.hdr.sgml : 20250402
<ACCEPTANCE-DATETIME>20250402162113
ACCESSION NUMBER:		0000845877-25-000129
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250331
FILED AS OF DATE:		20250402
DATE AS OF CHANGE:		20250402

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			NORDHOLM BRADFORD T
		CENTRAL INDEX KEY:			0001391468
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14951
		FILM NUMBER:		25804936

	MAIL ADDRESS:	
		STREET 1:		C/O FARMER MAC 2100 PENNSYLVANIA AVE NW
		STREET 2:		SUITE 450N
		CITY:			WASHINGTON
		STATE:			DC
		ZIP:			20037

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FEDERAL AGRICULTURAL MORTGAGE CORP
		CENTRAL INDEX KEY:			0000845877
		STANDARD INDUSTRIAL CLASSIFICATION:	FEDERAL & FEDERALLY-SPONSORED CREDIT AGENCIES [6111]
		ORGANIZATION NAME:           	02 Finance
		EIN:				521578738
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2100 PENNSYLVANIA AVE NW
		STREET 2:		SUITE 450N
		CITY:			WASHINGTON
		STATE:			DC
		ZIP:			20037
		BUSINESS PHONE:		2028727700

	MAIL ADDRESS:	
		STREET 1:		2100 PENNSYLVANIA AVE NW
		STREET 2:		SUITE 450N
		CITY:			WASHINGTON
		STATE:			DC
		ZIP:			20037
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wk-form4_1743625266.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-03-31</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000845877</issuerCik>
        <issuerName>FEDERAL AGRICULTURAL MORTGAGE CORP</issuerName>
        <issuerTradingSymbol>AGM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001391468</rptOwnerCik>
            <rptOwnerName>NORDHOLM BRADFORD T</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O FARMER MAC</rptOwnerStreet1>
            <rptOwnerStreet2>2100 PENNSYLVANIA AVE., NW, SUITE 450N</rptOwnerStreet2>
            <rptOwnerCity>WASHINGTON</rptOwnerCity>
            <rptOwnerState>DC</rptOwnerState>
            <rptOwnerZipCode>20037</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President and CEO</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class C Non-Voting Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-03-31</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>3949</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>188.58</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>45096.4506</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">On March 31, 2025, (i) 1,355 restricted stock units vested as the third installment of the time-based award granted in March 2022, for which the Federal Agricultural Mortgage Corporation (&quot;Farmer Mac&quot;) retained 655 shares to satisfy withholding requirements, (ii) 4,064 performance-based restricted stock units vested that were granted in March 2022 (2,032 target units vesting at a 200% performance factor), for which Farmer Mac retained 1,963 shares to satisfy withholding requirements, (iii) 1,449 restricted stock units vested as the second installment of the time-based award granted in March 2023, for which Farmer Mac retained 700 shares to satisfy withholding requirements, and (iv) 1,305 restricted stock units vested as the first installment of the time-based award granted in March 2024, for which Farmer Mac retained 631 shares to satisfy withholding requirements.</footnote>
        <footnote id="F2">In accordance with a policy adopted by the Human Capital and Compensation Committee of Farmer Mac's Board of Directors, the price used for the calculation of the number of shares withheld by Farmer Mac in satisfaction of tax liability is the closing price of Farmer Mac's Class C Non-Voting Common Stock on the New York Stock Exchange on the last trading day before the vesting date.</footnote>
        <footnote id="F3">Includes 29,100 unvested restricted stock units previously granted pursuant to Farmer Mac's Amended and Restated 2008 Omnibus Incentive Plan. The grants of restricted stock units have been described in detail in Farmer Mac's prior filings with the Securities and Exchange Commission. The total amount of securities beneficially owned has been adjusted since the Reporting Person's last filing to reflect 2,032 more shares that vested on March 31, 2025 as a result of applying a 200% performance factor to 2,032 target restricted stock units granted in March 2022.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Stephen P. Mullery, as attorney-in-fact for Bradford T. Nordholm</signatureName>
        <signatureDate>2025-04-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
