<SEC-DOCUMENT>0000904454-21-000150.txt : 20210205
<SEC-HEADER>0000904454-21-000150.hdr.sgml : 20210205
<ACCEPTANCE-DATETIME>20210205190533
ACCESSION NUMBER:		0000904454-21-000150
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210204
FILED AS OF DATE:		20210205
DATE AS OF CHANGE:		20210205

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Gregoriou Vassilios
		CENTRAL INDEX KEY:			0001843793

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38742
		FILM NUMBER:		21598101

	MAIL ADDRESS:	
		STREET 1:		ONE MIFFLIN PLACE
		STREET 2:		119 MT. AUBURN STREET, SUITE 400
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02138

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ADVENT TECHNOLOGIES HOLDINGS, INC.
		CENTRAL INDEX KEY:			0001744494
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS ELECTRICAL MACHINERY, EQUIPMENT & SUPPLIES [3690]
		IRS NUMBER:				830982969
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		ONE MIFFLIN PLACE
		STREET 2:		119 MT AUBURN STREET, SUITE 400
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02138
		BUSINESS PHONE:		857-264-7035

	MAIL ADDRESS:	
		STREET 1:		ONE MIFFLIN PLACE
		STREET 2:		119 MT AUBURN STREET, SUITE 400
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02138

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AMCI Acquisition Corp.
		DATE OF NAME CHANGE:	20180622
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-02-04</periodOfReport>

    <issuer>
        <issuerCik>0001744494</issuerCik>
        <issuerName>ADVENT TECHNOLOGIES HOLDINGS, INC.</issuerName>
        <issuerTradingSymbol>ADN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001843793</rptOwnerCik>
            <rptOwnerName>Gregoriou Vassilios</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ADVENT TECHNOLOGIES HOLDINGS, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>119 MT. AUBURN STREET, SUITE 400</rptOwnerStreet2>
            <rptOwnerCity>CAMBRIDGE</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02138</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chairman and CEO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-02-04</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>5465506</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5465506</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Received pursuant to the Agreement and Plan of Merger, dated as of October 12, 2020 (as amended, the &quot;Merger Agreement&quot;), by and among Advent Technologies Holdings, Inc. (f/k/a AMCI Acquisition Corp.) (the &quot;Issuer&quot;), AMCI Merger Sub Corp., a wholly-owned subsidiary of the Issuer (&quot;Merger Sub&quot;), AMCI Sponsor LLC, Vassilios Gregoriou and Advent Technologies Inc. (the &quot;Company&quot;), pursuant to which Merger Sub merged with and into the Company, with the Company surviving the merger (the &quot;Merger&quot;). As a result, the Company became a wholly-owned subsidiary of the Issuer, with the stockholders of the Company becoming stockholders of the Issuer.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Vassilios Gregoriou</signatureName>
        <signatureDate>2021-02-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
