<SEC-DOCUMENT>0001012975-17-000652.txt : 20170823
<SEC-HEADER>0001012975-17-000652.hdr.sgml : 20170823
<ACCEPTANCE-DATETIME>20170823162337
ACCESSION NUMBER:		0001012975-17-000652
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20170821
FILED AS OF DATE:		20170823
DATE AS OF CHANGE:		20170823

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Truffle Capital S.A.S.
		CENTRAL INDEX KEY:			0001706034
		STATE OF INCORPORATION:			I0
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-32587
		FILM NUMBER:		171047340

	BUSINESS ADDRESS:	
		STREET 1:		5 RUE DE LA BAUME
		CITY:			PARIS
		STATE:			I0
		ZIP:			75008
		BUSINESS PHONE:		(240) 654-1450

	MAIL ADDRESS:	
		STREET 1:		19 FIRSTFIELD ROAD
		STREET 2:		SUITE 200
		CITY:			GAITHERSBURG
		STATE:			MD
		ZIP:			20878

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Altimmune, Inc.
		CENTRAL INDEX KEY:			0001326190
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				202726770
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		19 FIRSTFIELD ROAD
		CITY:			GAITHERSBURG
		STATE:			MD
		ZIP:			20878
		BUSINESS PHONE:		2406541450

	MAIL ADDRESS:	
		STREET 1:		19 FIRSTFIELD ROAD
		CITY:			GAITHERSBURG
		STATE:			MD
		ZIP:			20878

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PHARMATHENE, INC
		DATE OF NAME CHANGE:	20071016

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HEALTHCARE ACQUISITION CORP
		DATE OF NAME CHANGE:	20050505
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
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    <periodOfReport>2017-08-21</periodOfReport>

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        <issuerName>Altimmune, Inc.</issuerName>
        <issuerTradingSymbol>ALT</issuerTradingSymbol>
    </issuer>

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            <rptOwnerName>Truffle Capital S.A.S.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>5, RUE DE LA BAUME</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>PARIS</rptOwnerCity>
            <rptOwnerState>I0</rptOwnerState>
            <rptOwnerZipCode>75008</rptOwnerZipCode>
            <rptOwnerStateDescription>FRANCE</rptOwnerStateDescription>
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        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
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    </reportingOwner>

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                    <footnoteId id="F5"/>
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        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
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            <conversionOrExercisePrice>
                <value>2.67</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2017-08-21</value>
            </transactionDate>
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                <transactionFormType>4</transactionFormType>
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                <transactionPricePerShare>
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                <transactionAcquiredDisposedCode>
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                    <footnoteId id="F3"/>
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                <transactionPricePerShare>
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                <transactionAcquiredDisposedCode>
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            <exerciseDate>
                <value>2017-08-21</value>
            </exerciseDate>
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                <value>2022-08-15</value>
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                    <value>I</value>
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                <natureOfOwnership>
                    <value>See Footnote</value>
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                    <footnoteId id="F4"/>
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            </ownershipNature>
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                <transactionFormType>4</transactionFormType>
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                <transactionShares>
                    <value>30696</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F6"/>
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                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
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                <value>2017-08-21</value>
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                <value>2022-08-15</value>
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                </sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
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                    <footnoteId id="F5"/>
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    <footnotes>
        <footnote id="F1">The Issuer's Series B Convertible Preferred Stock (the &quot;Preferred Stock&quot;) is convertible at any time at the option of the holder into shares of the Issuer's common stock, par value $0.0001 per share (the &quot;Common Stock&quot;), subject to certain restrictions, at an initial conversion price of $2.67 per share and a stated amount of $1,000 per share. Prior to the receipt of approval by the Issuer's stockholders for the issuance of shares pursuant to the conversion of the Preferred Stock (the &quot;Requisite Stockholder Approval&quot;), the Preferred Stock may not be converted by the holder if, as a result of such conversion, the holder, together with its affiliates, would hold more than 19.99% of the Issuer's Common Stock.</footnote>
        <footnote id="F2">Truffle Capital S.A.S., a French societe par actions simplifiee, is the fund manager for each of the funds listed in the following footnotes and as such manages and controls all voting and dispositive rights to shares held by each such fund. Philippe Pouletty, Bernard-Louis Roques and Henri Moulard may be deemed to possess voting and dispositive control over the shares held by funds managed by Truffle Capital S.A.S. and may be deemed to have indirect beneficial ownership of such shares. Each of these individuals disclaims beneficial ownership of such shares, except with respect to any pecuniary interest therein.</footnote>
        <footnote id="F3">Held directly by UFF Innovation 14 FCPI, a FCPI (Fonds Commun de Placement dans l'Innovation), which is a tax efficient French collective investment fund.</footnote>
        <footnote id="F4">Held directly by UFF Innovation 15 FCPI, a FCPI.</footnote>
        <footnote id="F5">Held directly by Truffle Fortune 4 FCPI, a FCPI.</footnote>
        <footnote id="F6">Warrants to purchase shares of the Issuer's Common Stock were acquired in connection with the acquisition of the Preferred Stock and reported on this Form 4. The Warrants may not be exercised if such exercise would cause the holder, together with its affiliates, to hold more than 19.99% of the Issuer's Common Stock, prior to the receipt by the Issuer of the Requisite Stockholder Approval.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Ori Solomon, Attorney in fact for Truffle Capital S.A.S.</signatureName>
        <signatureDate>2017-08-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
