<SEC-DOCUMENT>0000950170-24-019553.txt : 20240223
<SEC-HEADER>0000950170-24-019553.hdr.sgml : 20240223
<ACCEPTANCE-DATETIME>20240223182515
ACCESSION NUMBER:		0000950170-24-019553
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20240222
FILED AS OF DATE:		20240223
DATE AS OF CHANGE:		20240223

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Jones David B.
		CENTRAL INDEX KEY:			0001730447
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13879
		FILM NUMBER:		24673047

	MAIL ADDRESS:	
		STREET 1:		8310 S. VALLEY HWY
		STREET 2:		SUITE 350
		CITY:			DENVER
		STATE:			CO
		ZIP:			80112

	FORMER NAME:	
		FORMER CONFORMED NAME:	Jones David Bentley
		DATE OF NAME CHANGE:	20200123

	FORMER NAME:	
		FORMER CONFORMED NAME:	David Bentley Jones
		DATE OF NAME CHANGE:	20180205

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			INNOSPEC INC.
		CENTRAL INDEX KEY:			0001054905
		STANDARD INDUSTRIAL CLASSIFICATION:	CHEMICALS & ALLIED PRODUCTS [2800]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		IRS NUMBER:				981081725
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		8310 SOUTH VALLEY HIGHWAY
		STREET 2:		SUITE 350
		CITY:			ENGLEWOOD
		STATE:			CO
		ZIP:			80112
		BUSINESS PHONE:		7203556451

	MAIL ADDRESS:	
		STREET 1:		8310 SOUTH VALLEY HIGHWAY
		STREET 2:		SUITE 350
		CITY:			ENGLEWOOD
		STATE:			CO
		ZIP:			80112

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	OCTEL CORP
		DATE OF NAME CHANGE:	19980209
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
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    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2024-02-22</periodOfReport>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001730447</rptOwnerCik>
            <rptOwnerName>Jones David B.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>8310 SOUTH VALLEY HIGHWAY</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 350</rptOwnerStreet2>
            <rptOwnerCity>ENGLEWOOD</rptOwnerCity>
            <rptOwnerState>CO</rptOwnerState>
            <rptOwnerZipCode>80112</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>true</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle>SVP, GC &amp; CCO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>false</aff10b5One>

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                <equitySwapInvolved>false</equitySwapInvolved>
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                    <value>609</value>
                </transactionShares>
                <transactionPricePerShare>
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                <transactionShares>
                    <value>204</value>
                </transactionShares>
                <transactionPricePerShare>
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                    <footnoteId id="F1"/>
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        </nonDerivativeTransaction>
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                <equitySwapInvolved>false</equitySwapInvolved>
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                    <value>1097</value>
                    <footnoteId id="F3"/>
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        </nonDerivativeTransaction>
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    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Employee Stock Option</value>
            </securityTitle>
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            </conversionOrExercisePrice>
            <transactionDate>
                <value>2024-02-22</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
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                <equitySwapInvolved>false</equitySwapInvolved>
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            <transactionAmounts>
                <transactionShares>
                    <value>609</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
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                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2024-02-22</value>
            </exerciseDate>
            <expirationDate>
                <value>2031-02-21</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>609</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
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                </sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Appreciation Right</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>99.85</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2024-02-22</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>204</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2024-02-22</value>
            </exerciseDate>
            <expirationDate>
                <value>2031-02-22</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
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                    <value>204</value>
                </underlyingSecurityShares>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Stock Appreciation Right. Vested on February 22, 2024. Vested rights were paid in cash on February 22, 2024 based upon the difference in the closing price of the Company's common stock on the date of grant ($99.85, on February 22, 2021) and on the date of exercise ($123.96, on February 22, 2024).</footnote>
        <footnote id="F2">Shares of common stock acquired upon settlement of a performance-based restricted stock unit award granted to the reporting person on February 22, 2021.</footnote>
        <footnote id="F3">Shares withheld to settle income tax liability incurred upon vesting of the above-referenced performance-based restricted stock unit award on February 22, 2024.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>David Bentley Jones</signatureName>
        <signatureDate>2024-02-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
