<SEC-DOCUMENT>0001179110-21-009818.txt : 20211103
<SEC-HEADER>0001179110-21-009818.hdr.sgml : 20211103
<ACCEPTANCE-DATETIME>20211103160259
ACCESSION NUMBER:		0001179110-21-009818
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20211101
FILED AS OF DATE:		20211103
DATE AS OF CHANGE:		20211103

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Cavanaugh Sarah
		CENTRAL INDEX KEY:			0001709113

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-15006
		FILM NUMBER:		211375266

	MAIL ADDRESS:	
		STREET 1:		C/O CELLDEX THERAPEUTICS, INC.
		STREET 2:		53 FRONTAGE ROAD, SUITE 220
		CITY:			HAMPTON
		STATE:			NJ
		ZIP:			08827

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Celldex Therapeutics, Inc.
		CENTRAL INDEX KEY:			0000744218
		STANDARD INDUSTRIAL CLASSIFICATION:	IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES [2835]
		IRS NUMBER:				133191702
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		53 FRONTAGE ROAD
		STREET 2:		SUITE 220
		CITY:			HAMPTON
		STATE:			NJ
		ZIP:			08827
		BUSINESS PHONE:		908-200-7500

	MAIL ADDRESS:	
		STREET 1:		53 FRONTAGE ROAD
		STREET 2:		SUITE 220
		CITY:			HAMPTON
		STATE:			NJ
		ZIP:			08827

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AVANT IMMUNOTHERAPEUTICS INC
		DATE OF NAME CHANGE:	19980828

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	T CELL SCIENCES INC
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>FORM 4 -
<TEXT>
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    <periodOfReport>2021-11-01</periodOfReport>

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    <issuer>
        <issuerCik>0000744218</issuerCik>
        <issuerName>Celldex Therapeutics, Inc.</issuerName>
        <issuerTradingSymbol>CLDX</issuerTradingSymbol>
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            <rptOwnerCik>0001709113</rptOwnerCik>
            <rptOwnerName>Cavanaugh Sarah</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O CELLDEX THERAPEUTICS, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>53 FRONTAGE ROAD, SUITE 220</rptOwnerStreet2>
            <rptOwnerCity>HAMPTON</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>08827</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>SVP of Corp Affairs &amp; Admin.</officerTitle>
            <otherText></otherText>
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        <nonDerivativeTransaction>
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            <transactionDate>
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                <equitySwapInvolved>0</equitySwapInvolved>
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                    <footnoteId id="F3"/>
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                    <footnoteId id="F5"/>
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        <nonDerivativeTransaction>
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            <transactionDate>
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                <footnoteId id="F3"/>
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                    <footnoteId id="F3"/>
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                    <footnoteId id="F6"/>
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                    <value>D</value>
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                    <value>D</value>
                </directOrIndirectOwnership>
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        </nonDerivativeTransaction>
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    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Incentive Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>9.0165</value>
                <footnoteId id="F2"/>
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                <value>2021-11-01</value>
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                    <value>5018</value>
                    <footnoteId id="F2"/>
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                <transactionPricePerShare>
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                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F7"/>
            </exerciseDate>
            <expirationDate>
                <value>2028-06-13</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>5018</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
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                <sharesOwnedFollowingTransaction>
                    <value>13315</value>
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        </derivativeTransaction>
        <derivativeTransaction>
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                <value>Incentive Stock Option (Right to Buy)</value>
            </securityTitle>
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            <transactionDate>
                <value>2021-11-01</value>
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                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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                    <value>938</value>
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                    <value>0.00</value>
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                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
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            <exerciseDate>
                <footnoteId id="F8"/>
            </exerciseDate>
            <expirationDate>
                <value>2029-06-19</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>938</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
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                <sharesOwnedFollowingTransaction>
                    <value>42062</value>
                </sharesOwnedFollowingTransaction>
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        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Includes 408 shares of common stock acquired under the Celldex Therapeutics, Inc. 2004 Employee Stock Purchase Plan on June 30, 2021. On February 8, 2019, Celldex Therapeutics, Inc. effected a 1-for-15 reverse stock split of its common stock (the &quot;Reverse Stock Split&quot;). The amount of securities reported on this Form 4 have been adjusted to reflect the Reverse Stock Split.</footnote>
        <footnote id="F2">This option was previously reported as covering 275,000 shares at an exercise price of $0.6011 per share, but has been adjusted to reflect the Reverse Stock Split.</footnote>
        <footnote id="F3">The sale of the shares of Common Stock were made pursuant to a plan intended to comply with Rule 10b5-1 of the Exchange Act, previously entered into on September 10, 2021.</footnote>
        <footnote id="F4">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $43.710 to $44.420 per share, inclusive. The reporting person undertakes to provide to Celldex Therapeutics, Inc., any security holder of Celldex Therapeutics, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.</footnote>
        <footnote id="F5">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $42.580 to $43.360 per share, inclusive. The reporting person undertakes to provide to Celldex Therapeutics, Inc., any security holder of Celldex Therapeutics, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.</footnote>
        <footnote id="F6">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $41.180 to $41.990 per share, inclusive. The reporting person undertakes to provide to Celldex Therapeutics, Inc., any security holder of Celldex Therapeutics, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.</footnote>
        <footnote id="F7">25% vested on June 13, 2019 and the remainder vest quarterly (in equal amounts) over the subsequent 12 quarters.</footnote>
        <footnote id="F8">25% vested on June 19, 2020 and the remainder vest quarterly (in equal amounts) over the subsequent 12 quarters.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Sam Martin, attorney-in-fact for Sarah Cavanaugh</signatureName>
        <signatureDate>2021-11-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
