<SEC-DOCUMENT>0001487136-26-000002.txt : 20260224
<SEC-HEADER>0001487136-26-000002.hdr.sgml : 20260224
<ACCEPTANCE-DATETIME>20260224164104
ACCESSION NUMBER:		0001487136-26-000002
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20260223
FILED AS OF DATE:		20260224
DATE AS OF CHANGE:		20260224

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			NELSON DAVID D
		CENTRAL INDEX KEY:			0001487136
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-49677
		FILM NUMBER:		26672406

	MAIL ADDRESS:	
		STREET 1:		1601 22ND STREET
		CITY:			WEST DES MOINES
		STATE:			IA
		ZIP:			50266

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WEST BANCORPORATION INC
		CENTRAL INDEX KEY:			0001166928
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		ORGANIZATION NAME:           	02 Finance
		EIN:				421230603
		STATE OF INCORPORATION:			IA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		3330 WESTOWN PARKWAY
		CITY:			WEST DES MOINES
		STATE:			IA
		ZIP:			50266
		BUSINESS PHONE:		5152222309

	MAIL ADDRESS:	
		STREET 1:		3330 WESTOWN PARKWAY
		CITY:			WEST DES MOINES
		STATE:			IA
		ZIP:			50266
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wk-form4_1771969261.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-02-23</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001166928</issuerCik>
        <issuerName>WEST BANCORPORATION INC</issuerName>
        <issuerTradingSymbol>WTBA</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001487136</rptOwnerCik>
            <rptOwnerName>NELSON DAVID D</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>8050 HEATHER BOW</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>JOHNSTON</rptOwnerCity>
            <rptOwnerState>IA</rptOwnerState>
            <rptOwnerZipCode>50131</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>CEO &amp; PRESIDENT</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>COMMON STOCK</value>
            </securityTitle>
            <transactionDate>
                <value>2026-02-23</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>17000</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>124966</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>COMMON STOCK</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>107457</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Katherine A. Nelson Rev Trust</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>COMMON STOCK</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>31695</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By 401(k) Plan</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Shares were acquired pursuant to a grant of restricted stock units, 8,500 units of which, vest in five equal annual installments beginning March 25, 2027.  The remaining 8,500 units cliff vest on March 25, 2029, subject to achievement of performance criteria established by the Compensation Committee as set out in the grant.</footnote>
        <footnote id="F2">325 shares of previously reported performance stock units did not vest because the applicable performance conditions were not satisfied.</footnote>
        <footnote id="F3">1,169 shares were acquired pursuant to dividend reinvestment purchases in the employee savings plan 401(k) during the period from April 1, 2025 through December 31, 2025.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Melissa L. Gillespie, By Power of Attorney</signatureName>
        <signatureDate>2026-02-24</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
