<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3/A</documentType>

    <periodOfReport>2015-04-16</periodOfReport>

    <dateOfOriginalSubmission>2015-04-16</dateOfOriginalSubmission>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001592386</issuerCik>
        <issuerName>Virtu Financial, Inc.</issuerName>
        <issuerTradingSymbol>VIRT</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001568352</rptOwnerCik>
            <rptOwnerName>Havelock Fund Investments Pte Ltd</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>60B ORCHARD ROAD #06-18</rptOwnerStreet1>
            <rptOwnerStreet2>THE ATRIUM@ORCHARD</rptOwnerStreet2>
            <rptOwnerCity>SINGAPORE</rptOwnerCity>
            <rptOwnerState>U0</rptOwnerState>
            <rptOwnerZipCode>238891</rptOwnerZipCode>
            <rptOwnerStateDescription>SINGAPORE</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001021944</rptOwnerCik>
            <rptOwnerName>Temasek Holdings (Private) Ltd</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>60B ORCHARD ROAD #06-18</rptOwnerStreet1>
            <rptOwnerStreet2>THE ATRIUM@ORCHARD</rptOwnerStreet2>
            <rptOwnerCity>SINGAPORE</rptOwnerCity>
            <rptOwnerState>U0</rptOwnerState>
            <rptOwnerZipCode>238891</rptOwnerZipCode>
            <rptOwnerStateDescription>SINGAPORE</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001568353</rptOwnerCik>
            <rptOwnerName>Fullerton Fund Investments Pte Ltd</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>60B ORCHARD ROAD #06-18</rptOwnerStreet1>
            <rptOwnerStreet2>THE ATRIUM@ORCHARD</rptOwnerStreet2>
            <rptOwnerCity>SINGAPORE</rptOwnerCity>
            <rptOwnerState>U0</rptOwnerState>
            <rptOwnerZipCode>238891</rptOwnerZipCode>
            <rptOwnerStateDescription>SINGAPORE</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class A common stock, par value $0.00001 per share</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>12317682</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Havelock Fund Investments Pte. Ltd. directly owns 12,317,682 shares of Issuer's Class A common stock. Havelock Fund Investments Pte. Ltd. is wholly owned by Fullerton Fund Investments Pte. Ltd., which is wholly owned by Temasek Holdings (Private) Limited. Each of Fullerton Fund Investments Pte. Ltd. and Temasek Holdings (Private) Limited, through the ownership described herein, may be deemed to beneficially own the shares held by Havelock Fund Investments Pte. Ltd.</footnote>
        <footnote id="F2">This amendment is being filed to correct the number of shares beneficially owned.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Choo Soo Shen Christina, Director, Temasek Holdings (Private) Ltd</signatureName>
        <signatureDate>2015-04-16</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Cheong Kok Tim, Director, Fullerton Fund Investments Pte. Ltd.</signatureName>
        <signatureDate>2015-04-16</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Serene Leow, Director, Havelock Fund Investments Pte. Ltd.</signatureName>
        <signatureDate>2015-04-16</signatureDate>
    </ownerSignature>
</ownershipDocument>
