-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 EM+h8tVakQoVYOMnksc6VD0ZA6TCrHKWh5nDccnQuQPPhzsZxk5nNsh/lI0xsklo
 RTnuOLgthWWVvs2ts6ERRg==

<SEC-DOCUMENT>0001181431-11-012232.txt : 20110223
<SEC-HEADER>0001181431-11-012232.hdr.sgml : 20110223
<ACCEPTANCE-DATETIME>20110223123849
ACCESSION NUMBER:		0001181431-11-012232
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20110223
FILED AS OF DATE:		20110223
DATE AS OF CHANGE:		20110223

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BRACEWELL Mark
		CENTRAL INDEX KEY:			0001375239

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13879
		FILM NUMBER:		11631353

	MAIL ADDRESS:	
		STREET 1:		2 FOSSARDS CLOSE, BRAMHAM
		STREET 2:		NR WETHERBY
		CITY:			WEST YORKSHIRE
		STATE:			X0
		ZIP:			LS23 6WD

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			INNOSPEC INC.
		CENTRAL INDEX KEY:			0001054905
		STANDARD INDUSTRIAL CLASSIFICATION:	CHEMICALS & ALLIED PRODUCTS [2800]
		IRS NUMBER:				981081725
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		8375 SOUTH WILLOW STREET
		CITY:			LITTLETON
		STATE:			CO
		ZIP:			80124
		BUSINESS PHONE:		303-792-5554

	MAIL ADDRESS:	
		STREET 1:		8375 SOUTH WILLOW STREET
		CITY:			LITTLETON
		STATE:			CO
		ZIP:			80124

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	OCTEL CORP
		DATE OF NAME CHANGE:	19980209
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd302541.xml
<DESCRIPTION>FORM 4 - MB
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2011-02-23</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001054905</issuerCik>
        <issuerName>INNOSPEC INC.</issuerName>
        <issuerTradingSymbol>IOSP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001375239</rptOwnerCik>
            <rptOwnerName>BRACEWELL Mark</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>INNOSPEC MANUFACTURING PARK</rptOwnerStreet1>
            <rptOwnerStreet2>OIL SITES ROAD, ELLESMERE PORT</rptOwnerStreet2>
            <rptOwnerCity>CHESHIRE</rptOwnerCity>
            <rptOwnerState>X0</rptOwnerState>
            <rptOwnerZipCode>CH65 4EY</rptOwnerZipCode>
            <rptOwnerStateDescription>UNITED KINGDOM</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Group Financial Controller</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2011-02-18</value>
            </transactionDate>
            <deemedExecutionDate>
                <value>2011-02-18</value>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1060</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>27.49</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1260</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Special Bonus</footnote>
        <footnote id="F2">This price represents the average purchase prices for multiple transactions reported on this line.  The prices of the transactions ranged from $27.47 to $27.5100.  Upon request by the SEC, the Issuer, or a security holder of the Issuer, the Reporting Person will undertake to provide full information regarding the number of shares and prices at which the transactions were affected.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Nicola Earl</signatureName>
        <signatureDate>2011-02-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----
