<SEC-DOCUMENT>0001209191-21-017057.txt : 20210303
<SEC-HEADER>0001209191-21-017057.hdr.sgml : 20210303
<ACCEPTANCE-DATETIME>20210303172219
ACCESSION NUMBER:		0001209191-21-017057
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210301
FILED AS OF DATE:		20210303
DATE AS OF CHANGE:		20210303

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Bansal Rishi
		CENTRAL INDEX KEY:			0001699667

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35039
		FILM NUMBER:		21710548

	MAIL ADDRESS:	
		STREET 1:		C/O BANKUNITED, INC.
		STREET 2:		14817 OAK LANE
		CITY:			MIAMI LAKES
		STATE:			FL
		ZIP:			33016

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BankUnited, Inc.
		CENTRAL INDEX KEY:			0001504008
		STANDARD INDUSTRIAL CLASSIFICATION:	SAVINGS INSTITUTION, FEDERALLY CHARTERED [6035]
		IRS NUMBER:				270162450
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		14817 OAK LANE
		CITY:			MIAMI LAKES
		STATE:			FL
		ZIP:			33016
		BUSINESS PHONE:		(305) 569-2000

	MAIL ADDRESS:	
		STREET 1:		14817 OAK LANE
		CITY:			MIAMI LAKES
		STATE:			FL
		ZIP:			33016
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-03-01</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001504008</issuerCik>
        <issuerName>BankUnited, Inc.</issuerName>
        <issuerTradingSymbol>BKU</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001699667</rptOwnerCik>
            <rptOwnerName>Bansal Rishi</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O BANKUNITED, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>14817 OAK LANE</rptOwnerStreet2>
            <rptOwnerCity>MIAMI LAKES</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>33016</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Officer of Subsidiary</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value $0.01 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2021-03-01</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>3339</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>42.01</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>29494</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Shares of BankUnited, Inc. common stock withheld by the Issuer to satisfy the tax withholding obligation of the reporting person arising from the vesting of restricted shares on March 1, 2021. These shares were not sold by the reporting person but were instead withheld from the total number of vested shares received by the reporting person from the Issuer.</footnote>
    </footnotes>

    <remarks>The Reporting Person is Chief Investment Officer of BankUnited, N.A., a wholly owned subsidiary of BankUnited, Inc.</remarks>

    <ownerSignature>
        <signatureName>/s/ Susan Greenfield as Attorney-in-Fact</signatureName>
        <signatureDate>2021-03-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
