<SEC-DOCUMENT>0001271163-19-000040.txt : 20190904
<SEC-HEADER>0001271163-19-000040.hdr.sgml : 20190904
<ACCEPTANCE-DATETIME>20190904102658
ACCESSION NUMBER:		0001271163-19-000040
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20190830
FILED AS OF DATE:		20190904
DATE AS OF CHANGE:		20190904

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			CONN JAMES P
		CENTRAL INDEX KEY:			0001216778

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-08476
		FILM NUMBER:		191073506

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GABELLI MULTIMEDIA TRUST INC.
		CENTRAL INDEX KEY:			0000921671
		IRS NUMBER:				133767317
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		ONE CORPORATE CENTER
		CITY:			RYE
		STATE:			NY
		ZIP:			10580-1434
		BUSINESS PHONE:		9149215070

	MAIL ADDRESS:	
		STREET 1:		ONE CORPORATE CENTER
		CITY:			RYE
		STATE:			NY
		ZIP:			10580-1434

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	GABELLI GLOBAL MULTIMEDIA TRUST INC
		DATE OF NAME CHANGE:	19940414
</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>2019-08-30</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000921671</issuerCik>
        <issuerName>GABELLI MULTIMEDIA TRUST INC.</issuerName>
        <issuerTradingSymbol>GGT</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001216778</rptOwnerCik>
            <rptOwnerName>CONN JAMES P</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1></rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity></rptOwnerCity>
            <rptOwnerState></rptOwnerState>
            <rptOwnerZipCode></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, Par Value $0.001</value>
            </securityTitle>
            <transactionDate>
                <value>2019-08-30</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>6000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>8.2214</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>27120</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>Bruce N. Alpert as Attorney-in-Fact for James P. Conn</signatureName>
        <signatureDate>2019-09-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
