<SEC-DOCUMENT>0001415889-22-005771.txt : 20220527
<SEC-HEADER>0001415889-22-005771.hdr.sgml : 20220527
<ACCEPTANCE-DATETIME>20220527121624
ACCESSION NUMBER:		0001415889-22-005771
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20220526
FILED AS OF DATE:		20220527
DATE AS OF CHANGE:		20220527

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Chase Philip
		CENTRAL INDEX KEY:			0001898808

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-41315
		FILM NUMBER:		22974923

	MAIL ADDRESS:	
		STREET 1:		1943 ISAAC NEWTON SQUARE EAST
		STREET 2:		SUITE 100
		CITY:			RESTON
		STATE:			VA
		ZIP:			20190

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			John Marshall Bancorp, Inc.
		CENTRAL INDEX KEY:			0001710482
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				815424879
		STATE OF INCORPORATION:			VA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1943 ISAAC NEWTON SQUARE
		STREET 2:		SUITE 100
		CITY:			RESTON
		STATE:			VA
		ZIP:			20190
		BUSINESS PHONE:		703-584-0840

	MAIL ADDRESS:	
		STREET 1:		1943 ISAAC NEWTON SQUARE
		STREET 2:		SUITE 100
		CITY:			RESTON
		STATE:			VA
		ZIP:			20190
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4-05272022_090515.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2022-05-26</periodOfReport>

    <issuer>
        <issuerCik>0001710482</issuerCik>
        <issuerName>John Marshall Bancorp, Inc.</issuerName>
        <issuerTradingSymbol>JMSB</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001898808</rptOwnerCik>
            <rptOwnerName>Chase Philip</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1943 ISAAC NEWTON SQUARE EAST</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 100</rptOwnerStreet2>
            <rptOwnerCity>RESTON</rptOwnerCity>
            <rptOwnerState>VA</rptOwnerState>
            <rptOwnerZipCode>20190</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>true</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2022-05-26</value>
            </transactionDate>
            <deemedExecutionDate>
                <value>2022-05-26</value>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>52</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>27.83</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>79935</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2022-05-26</value>
            </transactionDate>
            <deemedExecutionDate>
                <value>2022-05-26</value>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>15</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>27.87</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>79920</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Shares owned by the Philip R. Chase Revocable Trust dated July 19, 2016 over which the reporting person has investment control.</footnote>
    </footnotes>

    <remarks>Form 4 - 2 of 2.</remarks>

    <ownerSignature>
        <signatureName>/s/ Christopher B. Welby, Attorney-in-Fact</signatureName>
        <signatureDate>2022-05-27</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
