<SEC-DOCUMENT>0001127602-17-020982.txt : 20170608
<SEC-HEADER>0001127602-17-020982.hdr.sgml : 20170608
<ACCEPTANCE-DATETIME>20170608183655
ACCESSION NUMBER:		0001127602-17-020982
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20170608
FILED AS OF DATE:		20170608
DATE AS OF CHANGE:		20170608

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			UMB FINANCIAL CORP
		CENTRAL INDEX KEY:			0000101382
		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
		IRS NUMBER:				430903811
		STATE OF INCORPORATION:			MO
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1010 GRAND AVE
		CITY:			KANSAS CITY
		STATE:			MO
		ZIP:			64106
		BUSINESS PHONE:		8168607000

	MAIL ADDRESS:	
		STREET 1:		1010 GRAND AVE
		CITY:			KANSAS CITY
		STATE:			MO
		ZIP:			64106

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	UNITED MISSOURI BANCSHARES INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MISSOURI BANCSHARES INC
		DATE OF NAME CHANGE:	19710915

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Hagedorn Michael D
		CENTRAL INDEX KEY:			0001321912

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-04887
		FILM NUMBER:		17901171

	MAIL ADDRESS:	
		STREET 1:		1010 GRAND BLVD.
		CITY:			KANSAS CITY
		STATE:			MO
		ZIP:			64106
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
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<DESCRIPTION>PRIMARY DOCUMENT
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            <transactionAmounts>
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                <transactionShares>
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                </transactionShares>
                <transactionPricePerShare>
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                <transactionPricePerShare>
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            <ownershipNature>
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        <nonDerivativeTransaction>
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            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
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                </transactionShares>
                <transactionPricePerShare>
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                <sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
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            <transactionDate>
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                </transactionAcquiredDisposedCode>
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                <sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
                    <value>D</value>
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        <nonDerivativeTransaction>
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                <value>Common Stock</value>
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        <nonDerivativeHolding>
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                <value>Common Stock</value>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By ESOP</value>
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            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>45.58</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2017-06-08</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>7408</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2016-01-01</value>
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            <expirationDate>
                <value>2023-01-01</value>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
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                </underlyingSecurityTitle>
                <underlyingSecurityShares>
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                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2648</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>57.40</value>
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            <transactionDate>
                <value>2017-06-08</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>6043</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2017-01-01</value>
                <footnoteId id="F1"/>
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            <expirationDate>
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                <underlyingSecurityTitle>
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                <underlyingSecurityShares>
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                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>6044</value>
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            <ownershipNature>
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        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Options vest 50% on 1/1/2017, 75% on 1/1/2018, and 100% on 1/1/2019</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>John Pauls, Attorney-in-fact for Mr. Hagedorn</signatureName>
        <signatureDate>2017-06-08</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
