<SEC-DOCUMENT>0000899243-20-005195.txt : 20200219
<SEC-HEADER>0000899243-20-005195.hdr.sgml : 20200219
<ACCEPTANCE-DATETIME>20200219210038
ACCESSION NUMBER:		0000899243-20-005195
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20200214
FILED AS OF DATE:		20200219
DATE AS OF CHANGE:		20200219

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			El-Hibri Fuad
		CENTRAL INDEX KEY:			0001380185

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33137
		FILM NUMBER:		20632264

	MAIL ADDRESS:	
		STREET 1:		2273 RESEARCH BLVD, SUITE 400
		CITY:			ROCKVILLE
		STATE:			MD
		ZIP:			20850

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Emergent BioSolutions Inc.
		CENTRAL INDEX KEY:			0001367644
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				141902018
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		400 PROFESSIONAL DR, SUITE 400
		CITY:			GAITHERSBURG
		STATE:			MD
		ZIP:			20879
		BUSINESS PHONE:		240-631-3200

	MAIL ADDRESS:	
		STREET 1:		400 PROFESSIONAL DR, SUITE 400
		CITY:			GAITHERSBURG
		STATE:			MD
		ZIP:			20879
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
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        <issuerName>Emergent BioSolutions Inc.</issuerName>
        <issuerTradingSymbol>EBS</issuerTradingSymbol>
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            <rptOwnerName>El-Hibri Fuad</rptOwnerName>
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        <reportingOwnerAddress>
            <rptOwnerStreet1>400 PROFESSIONAL DRIVE, SUITE 400</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>GAITHERSBURG</rptOwnerCity>
            <rptOwnerState>MD</rptOwnerState>
            <rptOwnerZipCode>20879</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chairman</officerTitle>
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                <transactionPricePerShare>
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                </transactionAcquiredDisposedCode>
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                    <value>15614</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>63.90</value>
                </transactionPricePerShare>
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                    <value>D</value>
                </transactionAcquiredDisposedCode>
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                    <value>1479018</value>
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            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
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                    <value>4344250</value>
                    <footnoteId id="F2"/>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Intervac, L.L.C.</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
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                    <value>1524155</value>
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                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Biovac, L.L.C.</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Employee Stock Options (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>25.62</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2020-02-14</value>
            </transactionDate>
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                <footnoteId id="F1"/>
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                <value></value>
            </transactionTimeliness>
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                    <value>4386</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F4"/>
            </exerciseDate>
            <expirationDate>
                <value>2021-03-10</value>
            </expirationDate>
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                </directOrIndirectOwnership>
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        <derivativeTransaction>
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                <value>Employee Stock Options (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>25.62</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2020-02-18</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
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                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
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                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>15614</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
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                <footnoteId id="F4"/>
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            <expirationDate>
                <value>2021-03-10</value>
            </expirationDate>
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                    <value>23318</value>
                </sharesOwnedFollowingTransaction>
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    <footnotes>
        <footnote id="F1">All transactions listed on this Form 4 were made by the Reporting Person pursuant to a trading plan adopted on September 4, 2019 that is intended to comply with Rule 10b5-1(c) under the Securities Exchange Act of 1934.</footnote>
        <footnote id="F2">Mr. El-Hibri's wife, individually, and Mr. and Mrs. El-Hibri, as tenants by the entirety, collectively hold an aggregate 40.65% equity interest in Intervac, L.L.C., which in turn is the direct owner of 4,344,250 shares of the Issuer's common stock. Mr. El-Hibri disclaims beneficial ownership of the shares of the Issuer's common stock directly owned by Intervac, L.L.C. for purposes of Section 16 of the Exchange Act or otherwise, except to the extent of his pecuniary interest therein.</footnote>
        <footnote id="F3">Mr. El-Hibri, individually, and Mr. and Mrs. El-Hibri, as tenants by the entirety, collectively hold an aggregate 89.2% equity interest in Biovac, L.L.C, which in turn is the direct owner of 1,524,155 shares of the Issuer's common stock. Mr. El-Hibri disclaims beneficial ownership of the shares of the Issuer's common stock directly owned by Biovac, L.L.C. for purposes of Section 16 of the Exchange Act or otherwise, except to the extent of his pecuniary interest therein.</footnote>
        <footnote id="F4">The options vested in three equal installments on March 10 2015, March 10, 2016 and March 10, 2017.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Carl A. Valenstein, attorney-in-fact</signatureName>
        <signatureDate>2020-02-19</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
