<SEC-DOCUMENT>0001137774-24-000183.txt : 20240911
<SEC-HEADER>0001137774-24-000183.hdr.sgml : 20240911
<ACCEPTANCE-DATETIME>20240911162817
ACCESSION NUMBER:		0001137774-24-000183
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20240909
FILED AS OF DATE:		20240911
DATE AS OF CHANGE:		20240911

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			PRUDENTIAL INSURANCE CO OF AMERICA
		CENTRAL INDEX KEY:			0000729057
		STANDARD INDUSTRIAL CLASSIFICATION:	LIFE INSURANCE [6311]
		ORGANIZATION NAME:           	02 Finance
		STATE OF INCORPORATION:			NJ
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-22405
		FILM NUMBER:		241292934

	BUSINESS ADDRESS:	
		STREET 1:		PRUDENTIAL PLAZA
		STREET 2:		751 BROAD STREET
		CITY:			NEWARK
		STATE:			NJ
		ZIP:			07102-3777
		BUSINESS PHONE:		(973) 802-5037

	MAIL ADDRESS:	
		STREET 1:		751 BROAD STREET
		CITY:			NEWARK
		STATE:			NJ
		ZIP:			07102

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			PRUDENTIAL FINANCIAL INC
		CENTRAL INDEX KEY:			0001137774
		STANDARD INDUSTRIAL CLASSIFICATION:	LIFE INSURANCE [6311]
		ORGANIZATION NAME:           	02 Finance
		STATE OF INCORPORATION:			NJ
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-22405
		FILM NUMBER:		241292935

	BUSINESS ADDRESS:	
		STREET 1:		751 BROAD ST
		CITY:			NEWARK
		STATE:			NJ
		ZIP:			07102
		BUSINESS PHONE:		9738026000

	MAIL ADDRESS:	
		STREET 1:		751 BROAD ST
		CITY:			NEWARK
		STATE:			NJ
		ZIP:			07102

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ClearBridge MLP & Midstream Fund Inc.
		CENTRAL INDEX KEY:			0001488775
		ORGANIZATION NAME:           	
		IRS NUMBER:				272282398
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1130

	BUSINESS ADDRESS:	
		STREET 1:		620 EIGHTH AVENUE
		STREET 2:		47TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10018
		BUSINESS PHONE:		(888) 777-0102

	MAIL ADDRESS:	
		STREET 1:		620 EIGHTH AVENUE
		STREET 2:		47TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10018

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ClearBridge Energy MLP Fund Inc.
		DATE OF NAME CHANGE:	20100407
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2024-09-09</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0001488775</issuerCik>
        <issuerName>ClearBridge MLP &amp; Midstream Fund Inc.</issuerName>
        <issuerTradingSymbol>CEM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001137774</rptOwnerCik>
            <rptOwnerName>PRUDENTIAL FINANCIAL INC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>751 BROAD ST</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEWARK</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07102</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000729057</rptOwnerCik>
            <rptOwnerName>PRUDENTIAL INSURANCE CO OF AMERICA</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>751 BROAD STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEWARK</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07102</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Series I Mandatory Redeemable Preferred Stock (CEM)</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <transactionDate>
                <value>2024-09-09</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>160</value>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>100000</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F3"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By The Prudential Insurance Company of America, a wholly-owned subsidiary of the Reporting Person</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Series M Mandatory Redeemable Preferred Stock (CEM)</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <transactionDate>
                <value>2024-09-09</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>285715</value>
                    <footnoteId id="F4"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>35</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F3"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By ThePrudentialInsuranceCompanyofAmerica,a wholly-ownedsubsidiaryof theReportingPerson</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Share exchange made in connection with the merger of (i) ClearBridge MLP and Midstream Total Return Inc. (CTR) and (ii) ClearBridge MLP and Midstream Fund, Inc. (CEM) with and into (iii) ClearBridge Energy Midstream Opportunity Fund (EMO), effective September 9, 2024.  See separate Form 4 filings for CTR and EMO.</footnote>
        <footnote id="F2">CEM Series I shares exchanged for EMO Series N Mandatory Redeemable Preferred Stock.</footnote>
        <footnote id="F3">Mandatory Redeemable Preferred Stock owned directly by The Prudential Insurance Company of America, a ten percent owner of a class, and indirectly owned by Prudential Financial, Inc., its parent holding company.</footnote>
        <footnote id="F4">CEM Series M shares exchanged for EMO Series R Mandatory Redeemable Preferred Stock</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Prudential Financial, Inc., By: /s/ Richard Baker, Second Vice President</signatureName>
        <signatureDate>2024-09-11</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>The Prudential Insurance Company of America, By: /s/ Brian Lemons, Vice President</signatureName>
        <signatureDate>2024-09-11</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
