<SEC-DOCUMENT>0000932440-12-000020.txt : 20120105
<SEC-HEADER>0000932440-12-000020.hdr.sgml : 20120105
<ACCEPTANCE-DATETIME>20120105141746
ACCESSION NUMBER:		0000932440-12-000020
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20120103
FILED AS OF DATE:		20120105
DATE AS OF CHANGE:		20120105

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BLACKROCK MUNIVEST FUND INC
		CENTRAL INDEX KEY:			0000835948
		STANDARD INDUSTRIAL CLASSIFICATION:	UNKNOWN SIC - 0000 [0000]
		IRS NUMBER:				222919170
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			0831

	BUSINESS ADDRESS:	
		STREET 1:		100 BELLEVUE PARKWAY
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19809
		BUSINESS PHONE:		800-441-7762

	MAIL ADDRESS:	
		STREET 1:		100 BELLEVUE PARKWAY
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19809

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MUNIVEST FUND INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MUNIPLUS FUND INC
		DATE OF NAME CHANGE:	19880913

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BANK OF AMERICA CORP /DE/
		CENTRAL INDEX KEY:			0000070858
		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-05611
		FILM NUMBER:		12510499

	BUSINESS ADDRESS:	
		STREET 1:		BANK OF AMERICA CORPORATE CENTER
		STREET 2:		100 N TRYON ST
		CITY:			CHARLOTTE
		STATE:			NC
		ZIP:			28255
		BUSINESS PHONE:		7043868486

	MAIL ADDRESS:	
		STREET 1:		BANK OF AMERICA CORPORATE CENTER
		STREET 2:		100 N TRYON ST
		CITY:			CHARLOTTE
		STATE:			NC
		ZIP:			28255

	FORMER NAME:	
		FORMER CONFORMED NAME:	BANKAMERICA CORP/DE/
		DATE OF NAME CHANGE:	19981022

	FORMER NAME:	
		FORMER CONFORMED NAME:	NATIONSBANK CORP
		DATE OF NAME CHANGE:	19920703

	FORMER NAME:	
		FORMER CONFORMED NAME:	NCNB CORP
		DATE OF NAME CHANGE:	19920107

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MERRILL LYNCH, PIERCE, FENNER & SMITH INC.
		CENTRAL INDEX KEY:			0000728612
		STANDARD INDUSTRIAL CLASSIFICATION:	SECURITY BROKERS, DEALERS & FLOTATION COMPANIES [6211]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-05611
		FILM NUMBER:		12510497

	BUSINESS ADDRESS:	
		STREET 1:		4 WORLD FINANCIAL CENTER
		STREET 2:		NORTH TOWER
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10080
		BUSINESS PHONE:		212-670-2756

	MAIL ADDRESS:	
		STREET 1:		4 WORLD FINANCIAL CENTER
		STREET 2:		NORTH TOWER
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10080

	FORMER NAME:	
		FORMER CONFORMED NAME:	MERRILL LYNCH PIERCE FENNER & SMITH INC
		DATE OF NAME CHANGE:	19920929

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BANK OF AMERICA NA
		CENTRAL INDEX KEY:			0001102113

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-05611
		FILM NUMBER:		12510498

	BUSINESS ADDRESS:	
		STREET 1:		100 N. TRYON STREET
		CITY:			CHARLOTTE
		STATE:			NC
		ZIP:			28255
		BUSINESS PHONE:		(704) 386-5494

	MAIL ADDRESS:	
		STREET 1:		100 N. TRYON STREET
		CITY:			CHARLOTTE
		STATE:			NC
		ZIP:			28255

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Blue Ridge Investments, L.L.C.
		CENTRAL INDEX KEY:			0001453700
		STATE OF INCORPORATION:			DE

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-05611
		FILM NUMBER:		12510496

	BUSINESS ADDRESS:	
		STREET 1:		214 NORTH TRYON STREET
		CITY:			CHARLOTTE
		STATE:			NC
		ZIP:			28255
		BUSINESS PHONE:		980-386-4161

	MAIL ADDRESS:	
		STREET 1:		214 NORTH TRYON STREET
		CITY:			CHARLOTTE
		STATE:			NC
		ZIP:			28255
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
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<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
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<ownershipDocument>

    <schemaVersion>X0304</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2012-01-03</periodOfReport>

    <issuer>
        <issuerCik>0000835948</issuerCik>
        <issuerName>BLACKROCK MUNIVEST FUND INC</issuerName>
        <issuerTradingSymbol>MVF</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000070858</rptOwnerCik>
            <rptOwnerName>BANK OF AMERICA CORP /DE/</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>BANK OF AMERICA CORPORATE CENTER</rptOwnerStreet1>
            <rptOwnerStreet2>100 N. TRYON STREET</rptOwnerStreet2>
            <rptOwnerCity>CHARLOTTE</rptOwnerCity>
            <rptOwnerState>NC</rptOwnerState>
            <rptOwnerZipCode>28255</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000728612</rptOwnerCik>
            <rptOwnerName>MERRILL LYNCH, PIERCE, FENNER &amp; SMITH INC.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>4 WORLD FINANCIAL CENTER NORTH TOWER</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10080</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001102113</rptOwnerCik>
            <rptOwnerName>BANK OF AMERICA NA</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>BANK OF AMERICA CORPORATE CENTER</rptOwnerStreet1>
            <rptOwnerStreet2>100 NORTH TRYON STREET</rptOwnerStreet2>
            <rptOwnerCity>CHARLOTTE</rptOwnerCity>
            <rptOwnerState>NC</rptOwnerState>
            <rptOwnerZipCode>28255</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001453700</rptOwnerCik>
            <rptOwnerName>Blue Ridge Investments, L.L.C.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1></rptOwnerStreet1>
            <rptOwnerStreet2>214 N. TRYON STREET</rptOwnerStreet2>
            <rptOwnerCity>CHARLOTTE</rptOwnerCity>
            <rptOwnerState>NC</rptOwnerState>
            <rptOwnerZipCode>28255</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Auction Rate Preferred</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <transactionDate>
                <value>2012-01-03</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F2"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>472</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3879</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Auction Rate Preferred</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <transactionDate>
                <value>2012-01-03</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F2"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>920</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2959</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The Auction Rate Preferred Shares (&quot;Shares&quot;) reported in Table I represents one Share acquired and beneficially owned by Merrill Lynch, Pierce, Fenner &amp; Smith, Inc. (&quot;MLPFS&quot;) and other Shares beneficially owned by Bank of America, N.A. (&quot;BANA&quot;) and Blue Ridge Investments, L.L.C. (&quot;Blue Ridge&quot;).  MLPFS and BANA are wholly owned subsidiaries of Bank of America Corporation (&quot;Bank of America&quot;) and Blue Ridge is a wholly owned subsidiary of BANA.</footnote>
        <footnote id="F2">The Shares were called for redemption by the issuer at par value.</footnote>
    </footnotes>

    <remarks>The Shares reported herein represent Bank of America's combined holdings in multiple series of auction rate preferred securities of the issuer, which are treated herein as one class of securities in accordance with the Auction Rate Securities - Global Exemptive Relief no-action letter issued by the Securities and Exchange Commission on September 22, 2008.  The dispositions relate to CUSIPs 09253R501 and 09253R600.</remarks>

    <ownerSignature>
        <signatureName>Bank of America Corporation and Bank of America, N.A., By: /s/ Michael Didovic, Title: Director</signatureName>
        <signatureDate>2012-01-05</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Merrill Lynch, Pierce, Fenner &amp; Smith Incorporated, By: /s/ Lawrence Emerson, Title: Attorney-In-Fact</signatureName>
        <signatureDate>2012-01-05</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Blue Ridge Investments, L.L.C., By: /s/ John Hiebendahl, Title: SVP</signatureName>
        <signatureDate>2012-01-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
