APO: amended insider filing

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<ownershipDocument>

    <schemaVersion>X0609</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2026-06-09</periodOfReport>

    <dateOfOriginalSubmission>2026-06-10</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001858681</issuerCik>
        <issuerName>Apollo Global Management, Inc.</issuerName>
        <issuerTradingSymbol>APO</issuerTradingSymbol>
        <issuerForeignTradingSymbol></issuerForeignTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001557288</rptOwnerCik>
            <rptOwnerName>Kelly Martin</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>C/O APOLLO GLOBAL MANAGEMENT, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>9 WEST 57TH STREET, 42ND FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10019</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Financial Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>401067</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>25035</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>2025 Martin Kelly Gift Trust</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">This amendment is being filed to correct the balance of shares held by the reporting person.  On June 10, 2026, a Form 4 was filed, reporting a gift of 1300 shares made by the reporting person on June 9, 2026. Due to an administrative error by no fault of the reporting person, this reported gift was unable to be completed and the shares were returned to the reporting person. Accordingly, this Form 4 amendment effectively revokes the Form 4 filed on June 10, 2026.</footnote>
        <footnote id="F2">Reported amount includes 304,581 vested and unvested restricted stock units (&quot;RSUs&quot;) granted under the Apollo Global Management, Inc. 2019 Omnibus Equity Incentive Plan (the &quot;Plan&quot;). Each RSU represents the contingent right to receive, in accordance with the issuance schedule set forth in the applicable RSU award agreement, one share of common stock of the Issuer for each vested RSU. The RSUs vest in installments in accordance with the terms of the applicable RSU award agreement, provided the reporting person remains in service through the applicable vesting date.</footnote>
        <footnote id="F3">Held by the 2025 Martin Kelly Gift Trust, a trust over which the reporting person exercises sole voting and investment control, and for which members of the reporting person's immediate family are the beneficiaries.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Jessica L. Lomm, as Attorney-in-Fact</signatureName>
        <signatureDate>2026-07-10</signatureDate>
    </ownerSignature>
</ownershipDocument>