<SEC-DOCUMENT>0001181431-13-054428.txt : 20131018
<SEC-HEADER>0001181431-13-054428.hdr.sgml : 20131018
<ACCEPTANCE-DATETIME>20131018143333
ACCESSION NUMBER:		0001181431-13-054428
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20131016
FILED AS OF DATE:		20131018
DATE AS OF CHANGE:		20131018

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MACROGENICS INC
		CENTRAL INDEX KEY:			0001125345
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		9640 MEDICAL CENTER DRIVE
		CITY:			Rockville
		STATE:			MD
		ZIP:			20850
		BUSINESS PHONE:		301-251-5172

	MAIL ADDRESS:	
		STREET 1:		9640 MEDICAL CENTER DRIVE
		CITY:			ROCKVILLE
		STATE:			MD
		ZIP:			20850

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HURWITZ EDWARD
		CENTRAL INDEX KEY:			0001211840

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36112
		FILM NUMBER:		131159178
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd392968.xml
<DESCRIPTION>FORM 4
<TEXT>
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    <periodOfReport>2013-10-16</periodOfReport>

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    <issuer>
        <issuerCik>0001125345</issuerCik>
        <issuerName>MACROGENICS INC</issuerName>
        <issuerTradingSymbol>MGNX</issuerTradingSymbol>
    </issuer>

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        <reportingOwnerId>
            <rptOwnerCik>0001211840</rptOwnerCik>
            <rptOwnerName>HURWITZ EDWARD</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MACROGENICS, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>9640 MEDICAL CENTER DRIVE</rptOwnerStreet2>
            <rptOwnerCity>ROCKVILLE</rptOwnerCity>
            <rptOwnerState>MD</rptOwnerState>
            <rptOwnerZipCode>20850</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
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    </reportingOwner>

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            <ownershipNature>
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                <natureOfOwnership>
                    <value>See Footnote</value>
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            <ownershipNature>
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                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
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                <value>Common Stock</value>
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            <transactionDate>
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                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
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            </ownershipNature>
        </nonDerivativeTransaction>
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    <derivativeTable>
        <derivativeTransaction>
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                <value>Series B Convertible Preferred Stock</value>
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            <transactionDate>
                <value>2013-10-16</value>
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            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>C</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionAmounts>
                <transactionShares>
                    <value>18728346</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1137332</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
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                <sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
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                <natureOfOwnership>
                    <value>See Footnote</value>
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            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Series C Convertible Preferred Stock</value>
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            <conversionOrExercisePrice>
                <footnoteId id="F3"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2013-10-16</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>C</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionAmounts>
                <transactionShares>
                    <value>12328024</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F3"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F3"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F3"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>656657</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
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        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
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                    <value>3833767</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F3"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
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                <footnoteId id="F3"/>
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                    <value>Common Stock</value>
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                    <value>0</value>
                </sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F5"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Series D-2 Convertible Preferred Warrants</value>
            </securityTitle>
            <conversionOrExercisePrice>
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            </conversionOrExercisePrice>
            <transactionDate>
                <value>2013-10-16</value>
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                <transactionCode>X</transactionCode>
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                    <value>287533</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F6"/>
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                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F8"/>
            </exerciseDate>
            <expirationDate>
                <value>2013-10-16</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>15314</value>
                </underlyingSecurityShares>
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                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F7"/>
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    <footnotes>
        <footnote id="F1">Each share of Series B Convertible Preferred Stock converted into approximately 0.0607 of a share of Common Stock without payment of further consideration upon the closing of the Issuer's initial public offering. The shares had no expiration date.</footnote>
        <footnote id="F2">These securities are held as follows: 1,041,702 by Alta BioPharma Partners III, L.P. (&quot;ABP III&quot;), 69,959 by Alta BioPharma Partners III LP GmbH (&quot;ABP III KG&quot;) and 25,671 by Alta Embarcadero BioPharma Partners III, LLC (&quot;AEBP III&quot;). Edward Hurwitz is a director of Alta BioPharma Management Partners III, LLC, which is the general partner of ABP III, the managing limited partner of ABP III KG and the manager of AEBP III. Edward Hurwitz disclaims beneficial ownership of these securities except to the extent of any pecuniary interest therein.</footnote>
        <footnote id="F3">Each share of Series C Convertible Preferred Stock and each share of Series D-2 Convertible Preferred Stock converted into approximately 0.0533 of a share of Common Stock without payment of further consideration upon the closing of the Issuer's initial public offering. The shares had no expiration date.</footnote>
        <footnote id="F4">These securities are held as follows: 601,443 by ABP III , 40,392 by ABP III KG and 14,822 by AEBP III. Edward Hurwitz is a director of Alta BioPharma Management Partners III, LLC, which is the general partner of ABP III, the managing limited partner of ABP III KG and the manager of AEBP III. Edward Hurwitz disclaims beneficial ownership of these securities except to the extent of any pecuniary interest therein.</footnote>
        <footnote id="F5">These securities are held as follows: 187,036 by ABP III , 12,561 by ABP III KG and 4,609 by AEBP III. Edward Hurwitz is a director of Alta BioPharma Management Partners III, LLC, which is the general partner of ABP III, the managing limited partner of ABP III KG and the manager of AEBP III. Edward Hurwitz disclaims beneficial ownership of these securities except to the extent of any pecuniary interest therein.</footnote>
        <footnote id="F6">As exercised, each Series D-2 Convertible Preferred Warrant converted into an equal number of shares of Series D-2 Convertible Preferred Stock. Had the warrants not been exercised, they would have expired upon the closing of the initial public offering. Upon the closing of the Issuer's initial public offering each share of Series D-2 Convertible Preferred Stock then converted into approximately 0.0533 of a share of Common Stock without payment of further consideration. The shares of Series D-2 Convertible Preferred Stock had no expiration date.</footnote>
        <footnote id="F7">These securities are held as follows: 14,027 by ABP III, 942 by ABP III KG and 345 by AEBP III. Edward Hurwitz is a director of Alta BioPharma Management Partners III, LLC, which is the general partner of ABP III, the managing limited partner of ABP III KG and the manager of AEBP III. Edward Hurwitz disclaims beneficial ownership of these securities except to the extent of any pecuniary interest therein.</footnote>
        <footnote id="F8">Immediately.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Lynn Cilinski, attorney-in-fact</signatureName>
        <signatureDate>2013-10-18</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</SEC-DOCUMENT>
