<SEC-DOCUMENT>0001398344-25-007655.txt : 20250424
<SEC-HEADER>0001398344-25-007655.hdr.sgml : 20250424
<ACCEPTANCE-DATETIME>20250424160518
ACCESSION NUMBER:		0001398344-25-007655
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20241108
FILED AS OF DATE:		20250424
DATE AS OF CHANGE:		20250424

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Bulldog Investors, LLP
		CENTRAL INDEX KEY:			0001504304
		ORGANIZATION NAME:           	
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-05785
		FILM NUMBER:		25867248

	BUSINESS ADDRESS:	
		STREET 1:		PARK 80 WEST - PLAZA TWO
		STREET 2:		250 PEHLE AVE. SUITE 708
		CITY:			SADDLE BROOK
		STATE:			NJ
		ZIP:			07663
		BUSINESS PHONE:		201 556-0092

	MAIL ADDRESS:	
		STREET 1:		PARK 80 WEST - PLAZA TWO
		STREET 2:		250 PEHLE AVE. SUITE 708
		CITY:			SADDLE BROOK
		STATE:			NJ
		ZIP:			07663

	FORMER NAME:	
		FORMER CONFORMED NAME:	Bulldog Investors, LLC
		DATE OF NAME CHANGE:	20130610

	FORMER NAME:	
		FORMER CONFORMED NAME:	Brooklyn Capital Management LLC
		DATE OF NAME CHANGE:	20101026

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MFS INVESTMENT GRADE MUNICIPAL TRUST
		CENTRAL INDEX KEY:			0000847411
		ORGANIZATION NAME:           	
		EIN:				043046360
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1130

	BUSINESS ADDRESS:	
		STREET 1:		111 HUNTINGTON AVENUE
		STREET 2:		24TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199
		BUSINESS PHONE:		617-954-5000

	MAIL ADDRESS:	
		STREET 1:		111 HUNTINGTON AVENUE
		STREET 2:		24TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	COLONIAL INVESTMENT GRADE MUNICIPAL TRUST
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>fp0093400-1_3.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2024-11-08</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000847411</issuerCik>
        <issuerName>MFS INVESTMENT GRADE MUNICIPAL TRUST</issuerName>
        <issuerTradingSymbol>CXH</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001504304</rptOwnerCik>
            <rptOwnerName>Bulldog Investors, LLP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>PARK 80 WEST - PLAZA TWO</rptOwnerStreet1>
            <rptOwnerStreet2>250 PEHLE AVE. SUITE 708</rptOwnerStreet2>
            <rptOwnerCity>SADDLE BROOK</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07663</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>7688</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F1"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Shares are held by Phillip Goldstein, a partner in Bulldog Investors, LLP. Bulldog Investors disclaims beneficial interest in such shares except to the extent of any pecuniary interest therein.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Phillip Goldstein, Partner</signatureName>
        <signatureDate>2025-04-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
