<SEC-DOCUMENT>0001181355-26-000002.txt : 20260219
<SEC-HEADER>0001181355-26-000002.hdr.sgml : 20260219
<ACCEPTANCE-DATETIME>20260219154723
ACCESSION NUMBER:		0001181355-26-000002
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20260217
FILED AS OF DATE:		20260219
DATE AS OF CHANGE:		20260219

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			PERNA ROBERT J
		CENTRAL INDEX KEY:			0001181355
		STANDARD INDUSTRIAL CLASSIFICATION:	MOTOR VEHICLES & PASSENGER CAR BODIES [3711]
		ORGANIZATION NAME:           	04 Manufacturing
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36102
		FILM NUMBER:		26654081

	MAIL ADDRESS:	
		STREET 1:		1151 MAPLEWOOD DRIVE
		CITY:			ITASCA
		STATE:			IL
		ZIP:			60143

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Knowles Corp
		CENTRAL INDEX KEY:			0001587523
		STANDARD INDUSTRIAL CLASSIFICATION:	HOUSEHOLD AUDIO & VIDEO EQUIPMENT [3651]
		ORGANIZATION NAME:           	04 Manufacturing
		EIN:				901002689
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1151 MAPLEWOOD DRIVE
		CITY:			ITASCA
		STATE:			IL
		ZIP:			60143
		BUSINESS PHONE:		630-250-5100

	MAIL ADDRESS:	
		STREET 1:		1151 MAPLEWOOD DRIVE
		CITY:			ITASCA
		STATE:			IL
		ZIP:			60143
</SEC-HEADER>
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<TYPE>4
<SEQUENCE>1
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<DESCRIPTION>PRIMARY DOCUMENT
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    <periodOfReport>2026-02-17</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001587523</issuerCik>
        <issuerName>Knowles Corp</issuerName>
        <issuerTradingSymbol>KN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001181355</rptOwnerCik>
            <rptOwnerName>PERNA ROBERT J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1151 MAPLEWOOD DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ITASCA</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60143</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>SVP, General Counsel &amp; Sec</officerTitle>
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    </reportingOwner>

    <aff10b5One>0</aff10b5One>

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                <value>Common Stock</value>
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            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
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                <transactionShares>
                    <value>34725</value>
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                <directOrIndirectOwnership>
                    <value>D</value>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-02-18</value>
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                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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                    <value>2818</value>
                    <footnoteId id="F4"/>
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                    <value>27.16</value>
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                <transactionAcquiredDisposedCode>
                    <value>D</value>
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                    <value>90780</value>
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                <directOrIndirectOwnership>
                    <value>D</value>
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        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
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                    <value>9221</value>
                </sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>by Trust</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Represents the settlement of performance share units (PSUs) that were previously granted under the Knowles Corporation Equity Incentive Plan. The ultimate amount of shares to be received under the grant depended upon the achievement of performance goals during a three-year performance period from January 1, 2023 through December 31, 2025.</footnote>
        <footnote id="F2">These shares represent the payment of the tax liability by withholding securities incident to the settlement of performance share units granted on February 6, 2023 in accordance with Rule 16b-3.</footnote>
        <footnote id="F3">Restricted Stock Units granted under the Knowles Corporation 2018 Equity and Cash Incentive Plan that vest ratably over three years commencing on the first anniversary of the award.</footnote>
        <footnote id="F4">These shares represent the payment of the tax liability by withholding securities incident to the vesting of a restricted stock grant issued on February 18, 2025 in accordance with Rule 16b-3.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>By: Robyn B. Martin For: POA for Robert J. Perna</signatureName>
        <signatureDate>2026-02-19</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
