<SEC-DOCUMENT>0001223203-19-000043.txt : 20190611
<SEC-HEADER>0001223203-19-000043.hdr.sgml : 20190611
<ACCEPTANCE-DATETIME>20190611161532
ACCESSION NUMBER:		0001223203-19-000043
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20190607
FILED AS OF DATE:		20190611
DATE AS OF CHANGE:		20190611

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Allardice Robert B. III
		CENTRAL INDEX KEY:			0001446359

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13958
		FILM NUMBER:		19891150

	MAIL ADDRESS:	
		STREET 1:		ONE HARTFORD PLAZA
		STREET 2:		HO-01-09
		CITY:			HARTFORD
		STATE:			CT
		ZIP:			06155

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			HARTFORD FINANCIAL SERVICES GROUP, INC.
		CENTRAL INDEX KEY:			0000874766
		STANDARD INDUSTRIAL CLASSIFICATION:	FIRE, MARINE & CASUALTY INSURANCE [6331]
		IRS NUMBER:				133317783
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		ONE HARTFORD PLAZA
		CITY:			HARTFORD
		STATE:			CT
		ZIP:			06155
		BUSINESS PHONE:		8605475000

	MAIL ADDRESS:	
		STREET 1:		ONE HARTFORD PLAZA
		CITY:			HARTFORD
		STATE:			CT
		ZIP:			06155

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HARTFORD FINANCIAL SERVICES GROUP INC/DE
		DATE OF NAME CHANGE:	19990402

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ITT HARTFORD GROUP INC /DE
		DATE OF NAME CHANGE:	19930328
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2019-06-07</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000874766</issuerCik>
        <issuerName>HARTFORD FINANCIAL SERVICES GROUP, INC.</issuerName>
        <issuerTradingSymbol>HIG</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001446359</rptOwnerCik>
            <rptOwnerName>Allardice Robert B. III</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ONE HARTFORD PLAZA</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>HARTFORD</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06155</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2019-06-07</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>55.232</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>25183.673</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>/s/ Anthony J. Salerno, Jr. Attorney-in-Fact</signatureName>
        <signatureDate>2019-06-11</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
