<SEC-DOCUMENT>0002046701-26-000001.txt : 20260108
<SEC-HEADER>0002046701-26-000001.hdr.sgml : 20260108
<ACCEPTANCE-DATETIME>20260108204241
ACCESSION NUMBER:		0002046701-26-000001
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20260107
FILED AS OF DATE:		20260108
DATE AS OF CHANGE:		20260108

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Exicure HiTron Inc.
		CENTRAL INDEX KEY:			0002046701
		ORGANIZATION NAME:           	
		STATE OF INCORPORATION:			M5
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39011
		FILM NUMBER:		26521140

	BUSINESS ADDRESS:	
		STREET 1:		99-13 MASAN-GIL, MIYANG-MYEON
		CITY:			ANSEONG-SI, GYEONGGI-DO
		STATE:			MA
		ZIP:			17601
		BUSINESS PHONE:		821062202280

	MAIL ADDRESS:	
		STREET 1:		99-13 MASAN-GIL, MIYANG-MYEON
		CITY:			ANSEONG-SI, GYEONGGI-DO
		STATE:			MA
		ZIP:			17601

	FORMER NAME:	
		FORMER CONFORMED NAME:	HiTron Systems Inc.
		DATE OF NAME CHANGE:	20241127

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			EXICURE, INC.
		CENTRAL INDEX KEY:			0001698530
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				815333008
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2430 N. HALSTED ST.
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60614
		BUSINESS PHONE:		847-673-1707

	MAIL ADDRESS:	
		STREET 1:		2430 N. HALSTED ST.
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60614

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Max-1 Acquisition Corp
		DATE OF NAME CHANGE:	20170221
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-01-07</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001698530</issuerCik>
        <issuerName>EXICURE, INC.</issuerName>
        <issuerTradingSymbol>XCUR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002046701</rptOwnerCik>
            <rptOwnerName>Exicure HiTron Inc.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>99-13 MASAN-GIL, MIYANG-MYEON</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ANSEONG-SI, GYEONGGI-DO</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>17601</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3333333</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common</value>
            </securityTitle>
            <transactionDate>
                <value>2026-01-07</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>741272</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>4.5</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2592061</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>/s/ Young Chul Han</signatureName>
        <signatureDate>2026-01-08</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
