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Proc-Type: 2001,MIC-CLEAR
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<SEC-DOCUMENT>0001289419-08-000237.txt : 20080409
<SEC-HEADER>0001289419-08-000237.hdr.sgml : 20080409
<ACCEPTANCE-DATETIME>20080409155425
ACCESSION NUMBER:		0001289419-08-000237
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080407
FILED AS OF DATE:		20080409
DATE AS OF CHANGE:		20080409

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Morningstar, Inc.
		CENTRAL INDEX KEY:			0001289419
		STANDARD INDUSTRIAL CLASSIFICATION:	INVESTMENT ADVICE [6282]
		IRS NUMBER:				363297908
		STATE OF INCORPORATION:			IL
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		225 WEST WACKER DRIVE
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		(312) 696-6000

	MAIL ADDRESS:	
		STREET 1:		225 WEST WACKER DRIVE
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Mansueto Joseph D
		CENTRAL INDEX KEY:			0001324069

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-51280
		FILM NUMBER:		08747759

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		(312) 696-6000

	MAIL ADDRESS:	
		STREET 1:		C/O MORNINGSTAR, INC.
		STREET 2:		225 WEST WACKER DRIVE
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2008-04-07</periodOfReport>

    <issuer>
        <issuerCik>0001289419</issuerCik>
        <issuerName>Morningstar, Inc.</issuerName>
        <issuerTradingSymbol>MORN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
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            <rptOwnerName>Mansueto Joseph D</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MORNINGSTAR, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>225 WEST WACKER DRIVE</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60606</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chairman &amp; CEO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
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            <securityTitle>
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            <transactionAmounts>
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                <transactionPricePerShare>
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            <ownershipNature>
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            <securityTitle>
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            <transactionAmounts>
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                <transactionPricePerShare>
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            <transactionAmounts>
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                <transactionAcquiredDisposedCode>
                    <value>D</value>
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                <directOrIndirectOwnership>
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                <transactionFormType>4</transactionFormType>
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                <footnoteId id="F1"/>
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            <transactionAmounts>
                <transactionShares>
                    <value>25</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>64.98</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
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                <sharesOwnedFollowingTransaction>
                    <value>27775601</value>
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                <directOrIndirectOwnership>
                    <value>D</value>
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                <natureOfOwnership>
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            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 12, 2007.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Heidi Miller, by power of attorney</signatureName>
        <signatureDate>2008-04-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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