<SEC-DOCUMENT>0001213900-26-046750.txt : 20260422
<SEC-HEADER>0001213900-26-046750.hdr.sgml : 20260422
<ACCEPTANCE-DATETIME>20260422185300
ACCESSION NUMBER:		0001213900-26-046750
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20260420
FILED AS OF DATE:		20260422
DATE AS OF CHANGE:		20260422

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Katsuya Toshihiko
		CENTRAL INDEX KEY:			0002126166
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-42438
		FILM NUMBER:		26885046

	MAIL ADDRESS:	
		ADDRESS IS A NON US LOCATION: 	YES
		STREET 1:		NIEUWEZIJDS VOORBURGWAL 162, 1012 SJ
		CITY:			AMSTERDAM
		PROVINCE COUNTRY:   	P7
		ZIP:			00000

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Coincheck Group N.V.
		CENTRAL INDEX KEY:			0001913847
		STANDARD INDUSTRIAL CLASSIFICATION:	FINANCE SERVICES [6199]
		ORGANIZATION NAME:           	09 Crypto Assets
		EIN:				000000000
		STATE OF INCORPORATION:			P7
		FISCAL YEAR END:			0331

	BUSINESS ADDRESS:	
		ADDRESS IS A NON US LOCATION: 	YES
		STREET 1:		NIEUWEZIJDS VOORBURGWAL 162
		CITY:			1012 SJ AMSTERDAM
		PROVINCE COUNTRY:   	P7
		BUSINESS PHONE:		31-20-522-2555

	MAIL ADDRESS:	
		ADDRESS IS A NON US LOCATION: 	YES
		STREET 1:		NIEUWEZIJDS VOORBURGWAL 162
		CITY:			1012 SJ AMSTERDAM
		PROVINCE COUNTRY:   	P7

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Coincheck Group B.V.
		DATE OF NAME CHANGE:	20220228
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>ownership.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0609</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-04-20</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001913847</issuerCik>
        <issuerName>Coincheck Group N.V.</issuerName>
        <issuerTradingSymbol>CNCK</issuerTradingSymbol>
        <issuerForeignTradingSymbol></issuerForeignTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002126166</rptOwnerCik>
            <rptOwnerName>Katsuya Toshihiko</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>true</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>NIEUWEZIJDS VOORBURGWAL</rptOwnerStreet1>
            <rptOwnerStreet2>162, 1012 SJ</rptOwnerStreet2>
            <rptOwnerCity>AMSTERDAM</rptOwnerCity>
            <rptOwnerNonUSStateTerritory></rptOwnerNonUSStateTerritory>
            <rptOwnerCountry>P7</rptOwnerCountry>
            <rptOwnerZipCode></rptOwnerZipCode>
            <rptOwnerStateDescription>NETHERLANDS</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Operating Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Ordinary Shares</value>
            </securityTitle>
            <transactionDate>
                <value>2026-04-20</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1701</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>19217</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Share Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F2"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2026-04-20</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1701</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Ordinary Shares</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1701</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3401</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Reflects vested restricted share units that settled into ordinary shares of the Issuer on a one-for-one basis. These restricted share units settled on April 20, 2026.</footnote>
        <footnote id="F2">Each restricted share unit represents a contingent right to receive one ordinary share of the Issuer, an equivalent amount of cash, or a combination thereof. Such restricted share units will vest in three substantially equal annual installments beginning on March 31, 2026.</footnote>
    </footnotes>

    <remarks>Due to the Issuer's status as a foreign private issuer pursuant to Rule 3a12-3(b) under the Securities Exchange Act of 1934 (the &quot;Act&quot;), the reporting person's transactions in the Issuer's equity securities are exempt from Sections 16(b) and 16(c) of the Act.</remarks>

    <ownerSignature>
        <signatureName>/s/ Marc Stone, as Attorney-in-Fact</signatureName>
        <signatureDate>2026-04-22</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
