<SEC-DOCUMENT>0001104659-19-051350.txt : 20190925
<SEC-HEADER>0001104659-19-051350.hdr.sgml : 20190925
<ACCEPTANCE-DATETIME>20190925163045
ACCESSION NUMBER:		0001104659-19-051350
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20190923
FILED AS OF DATE:		20190925
DATE AS OF CHANGE:		20190925

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Coffin Robert
		CENTRAL INDEX KEY:			0001376492

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38596
		FILM NUMBER:		191114544

	MAIL ADDRESS:	
		STREET 1:		C/O BIOVEX GROUP, INC.
		STREET 2:		34 COMMERCE WAY
		CITY:			WOBURN
		STATE:			MA
		ZIP:			10801

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Replimune Group, Inc.
		CENTRAL INDEX KEY:			0001737953
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		IRS NUMBER:				822082553
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		18 COMMERCE WAY
		CITY:			WOBURN
		STATE:			MA
		ZIP:			01801
		BUSINESS PHONE:		781-995-2443

	MAIL ADDRESS:	
		STREET 1:		18 COMMERCE WAY
		CITY:			WOBURN
		STATE:			MA
		ZIP:			01801
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>a4.xml
<DESCRIPTION>4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2019-09-23</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001737953</issuerCik>
        <issuerName>Replimune Group, Inc.</issuerName>
        <issuerTradingSymbol>REPL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001376492</rptOwnerCik>
            <rptOwnerName>Coffin Robert</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O REPLIMUNE GROUP, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>18 COMMERCE WAY</rptOwnerStreet2>
            <rptOwnerCity>WOBURN</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>01801</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President and CEO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2019-09-23</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>24250</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>17.05</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2387868</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The sale reported on this Form 4 was made by the reporting person pursuant to a trading plan adopted on March 7, 2019 that is intended to comply with Rule 10b5-1(c) under the Securities Exchange Act of 1934, as amended.</footnote>
        <footnote id="F2">Following the sale reported on this Form 4, the reporting person continues to beneficially own 2,387,868 shares of the Issuer's common stock. The reporting person also holds options to acquire 712,599 shares of the Issuer's common stock, 216,804 of which are exercisable as of the date hereof.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Robert Coffin</signatureName>
        <signatureDate>2019-09-25</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
