<SEC-DOCUMENT>0001897612-25-000513.txt : 20251114
<SEC-HEADER>0001897612-25-000513.hdr.sgml : 20251114
<ACCEPTANCE-DATETIME>20251114121824
ACCESSION NUMBER:		0001897612-25-000513
CONFORMED SUBMISSION TYPE:	SCHEDULE 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20251114
DATE AS OF CHANGE:		20251114

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LATTICE SEMICONDUCTOR CORP
		CENTRAL INDEX KEY:			0000855658
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		ORGANIZATION NAME:           	04 Manufacturing
		EIN:				930835214
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0103

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-40545
		FILM NUMBER:		251483351

	BUSINESS ADDRESS:	
		STREET 1:		5555 NE MOORE CT
		CITY:			HILLSBORO
		STATE:			OR
		ZIP:			97124
		BUSINESS PHONE:		5032688000

	MAIL ADDRESS:	
		STREET 1:		5555 NE MOORE CT
		CITY:			HILLSBORO
		STATE:			OR
		ZIP:			97124

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			T. Rowe Price Investment Management, Inc.
		CENTRAL INDEX KEY:			0001897612
		ORGANIZATION NAME:           	
		EIN:				854328500
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		1307 POINT STREET
		CITY:			BALTIMORE
		STATE:			MD
		ZIP:			21231
		BUSINESS PHONE:		000-000-0000

	MAIL ADDRESS:	
		STREET 1:		1307 POINT STREET
		CITY:			BALTIMORE
		STATE:			MD
		ZIP:			21231
</SEC-HEADER>
<DOCUMENT>
<TYPE>SCHEDULE 13G/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/schedule13g" xmlns:ns2="http://www.sec.gov/edgar/common">
    <headerData>
        <submissionType>SCHEDULE 13G/A</submissionType>
        <previousAccessionNumber>0001897612-24-001129</previousAccessionNumber>
        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001897612</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>


        </filerInfo>
    </headerData>
    <formData>
        <coverPageHeader>
            <amendmentNo>4</amendmentNo>
            <securitiesClassTitle>COMMON STOCK</securitiesClassTitle>
            <eventDateRequiresFilingThisStatement>09/30/2025</eventDateRequiresFilingThisStatement>
            <issuerInfo>
                <issuerCik>0000855658</issuerCik>
                <issuerName>LATTICE SEMICONDUCTOR CORP</issuerName>
                <issuerCusip>518415104</issuerCusip>
                <issuerPrincipalExecutiveOfficeAddress>
                    <ns2:street1>5555 NE MOORE CT</ns2:street1>
                    <ns2:city>HILLSBORO</ns2:city>
                    <ns2:stateOrCountry>OR</ns2:stateOrCountry>
                    <ns2:zipCode>97124</ns2:zipCode>
                </issuerPrincipalExecutiveOfficeAddress>
            </issuerInfo>
            <designateRulesPursuantThisScheduleFiled>
                <designateRulePursuantThisScheduleFiled>Rule 13d-1(b)</designateRulePursuantThisScheduleFiled>
            </designateRulesPursuantThisScheduleFiled>
        </coverPageHeader>
        <coverPageHeaderReportingPersonDetails>

            <reportingPersonName>T. Rowe Price Investment Management, Inc.</reportingPersonName>
            <citizenshipOrOrganization>MD</citizenshipOrOrganization>
            <reportingPersonBeneficiallyOwnedNumberOfShares>
                <soleVotingPower>20764640</soleVotingPower>
                <sharedVotingPower>0</sharedVotingPower>
                <soleDispositivePower>20812602</soleDispositivePower>
                <sharedDispositivePower>0</sharedDispositivePower>
            </reportingPersonBeneficiallyOwnedNumberOfShares>
            <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>20812602</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
            <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
            <classPercent>15.2</classPercent>
            <typeOfReportingPerson>IA</typeOfReportingPerson>
        </coverPageHeaderReportingPersonDetails>
        <items>
            <item1>
                <issuerName>LATTICE SEMICONDUCTOR CORP</issuerName>
                <issuerPrincipalExecutiveOfficeAddress>5555 NE MOORE CT, HILLSBORO, OR, 97124</issuerPrincipalExecutiveOfficeAddress>
            </item1>
            <item2>
                <filingPersonName>T. Rowe Price Investment Management, Inc.</filingPersonName>
                <principalBusinessOfficeOrResidenceAddress>1307 Point Street, Baltimore, MD 21231</principalBusinessOfficeOrResidenceAddress>
                <citizenship>Maryland</citizenship>
            </item2>
            <item3>
                <notApplicableFlag>N</notApplicableFlag>
                <typeOfPersonFiling>IA</typeOfPersonFiling>
            </item3>
            <item4>
                <amountBeneficiallyOwned>20812602</amountBeneficiallyOwned>
                <classPercent>15.2</classPercent>
                <numberOfSharesPersonHas>
                    <solePowerOrDirectToVote>20764640</solePowerOrDirectToVote>
                    <sharedPowerOrDirectToVote>0</sharedPowerOrDirectToVote>
                    <solePowerOrDirectToDispose>20812602</solePowerOrDirectToDispose>
                    <sharedPowerOrDirectToDispose>0</sharedPowerOrDirectToDispose>
                </numberOfSharesPersonHas>
            </item4>
            <item5>
                <notApplicableFlag>Y</notApplicableFlag>
            </item5>
            <item6>
                <notApplicableFlag>N</notApplicableFlag>
                <ownershipMoreThan5PercentOnBehalfOfAnotherPerson>Ownership of More than Five Percent on Behalf of Another Person (1)   Price Investment Management does not serve as custodian of the assets of any of its clients; accordingly, in each instance only the client or the client's custodian or trustee bank has the right to receive dividends paid with respect to, and proceeds from the sale of, such securities. The ultimate power to direct the receipt of dividends paid with respect to, and the proceeds from the sale of, such securities, is vested in the individual and institutional clients which Price Investment Management serves as investment adviser. Any and all discretionary authority which has been delegated to Price Investment Management may be revoked in whole or in part at any time. Except as may be indicated if this is a joint filing with one of the registered investment companies sponsored by Price Investment Management which it also serves as investment adviser ("T. Rowe Price Funds"), not more than 5% of the class of such securities is owned by any one client subject to the investment advice of Price Investment Management.  (2)     [T. ROWE PRICE MID-CAP GROWTH FUND ]:  T. ROWE PRICE MID-CAP GROWTH FUND, of which T. Rowe Price Investment Management, Inc. is the investment adviser, holds the securities reported herein in their investment portfolio managed by T. Rowe Price Investment Management, Inc. and such funds have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the securities that they hold. T. ROWE PRICE MID-CAP GROWTH FUND has an interest in 6,956,100 of the class reported herein representing 5.1% of the class.  </ownershipMoreThan5PercentOnBehalfOfAnotherPerson>
            </item6>
            <item7>
                <notApplicableFlag>Y</notApplicableFlag>
            </item7>
            <item8>
                <notApplicableFlag>Y</notApplicableFlag>
            </item8>
            <item9>
                <notApplicableFlag>Y</notApplicableFlag>
            </item9>
            <item10>
                <notApplicableFlag>N</notApplicableFlag>
                <certifications>By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. T. Rowe Price Investment Management, Inc. hereby declares and affirms that the filing of Schedule 13G shall not be construed as an admission that Price Investment Management is the beneficial owner of the securities referred to, which beneficial ownership is expressly denied.</certifications>
            </item10>
        </items>
        <signatureInformation>
            <reportingPersonName>T. Rowe Price Investment Management, Inc.</reportingPersonName>
            <signatureDetails>
                <signature>Ellen York</signature>
                <title>Vice President</title>
                <date>11/14/2025</date>
            </signatureDetails>
        </signatureInformation>
    </formData>
</edgarSubmission>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
