<SEC-DOCUMENT>0001104659-23-125488.txt : 20231212
<SEC-HEADER>0001104659-23-125488.hdr.sgml : 20231212
<ACCEPTANCE-DATETIME>20231212200939
ACCESSION NUMBER:		0001104659-23-125488
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20230623
FILED AS OF DATE:		20231212
DATE AS OF CHANGE:		20231212

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Lea Darrell Shane
		CENTRAL INDEX KEY:			0001958526

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36598
		FILM NUMBER:		231482727

	MAIL ADDRESS:	
		STREET 1:		7 PARKLAND DRIVE
		CITY:			MILFORD
		STATE:			NJ
		ZIP:			08848

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Cellectar Biosciences, Inc.
		CENTRAL INDEX KEY:			0001279704
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				043321804
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		100 CAMPUS DRIVE
		CITY:			FLORHAM PARK
		STATE:			NJ
		ZIP:			07932
		BUSINESS PHONE:		(608) 441-8120

	MAIL ADDRESS:	
		STREET 1:		100 CAMPUS DRIVE
		CITY:			FLORHAM PARK
		STATE:			NJ
		ZIP:			07932

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NOVELOS THERAPEUTICS, INC.
		DATE OF NAME CHANGE:	20050617

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	COMMON HORIZONS INC
		DATE OF NAME CHANGE:	20040211
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>tm2332764-3_4seq1.xml
<DESCRIPTION>OWNERSHIP DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2023-06-23</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001279704</issuerCik>
        <issuerName>Cellectar Biosciences, Inc.</issuerName>
        <issuerTradingSymbol>CLRB</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001958526</rptOwnerCik>
            <rptOwnerName>Lea Darrell Shane</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O CELLECTAR BIOSCIENCES, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>100 CAMPUS DRIVE</rptOwnerStreet2>
            <rptOwnerCity>FLORHAM</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07932</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Commercial Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2023-12-08</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>39599</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>39599</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>1.68</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2023-06-23</value>
                <footnoteId id="F1"/>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>100000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2033-01-17</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>100000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>100000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">This option was contingently granted on January 16, 2023, subject to approval by Cellectar's stockholders of Cellectar's amended 2021 Stock Incentive Plan  at Cellectar's 2023 Annual Meeting of Stockholders. Such stockholder approval was obtained on June 23, 2023. Because January 16, 2023 was a federal holiday, the option was priced on the following trading day.</footnote>
        <footnote id="F2">This option shall vest over a period of three years from January 17, 2023, with 1/3 vesting on the first anniversary of January 17, 2023 and the remainder vesting in 24 equal monthly installments over a 24-month period beginning on the first anniversary of January 17, 2023.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Christina Blakley, Attorney in-fact for Darrell Shane Lea</signatureName>
        <signatureDate>2023-12-12</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
