<SEC-DOCUMENT>0001422848-25-000247.txt : 20251113
<SEC-HEADER>0001422848-25-000247.hdr.sgml : 20251113
<ACCEPTANCE-DATETIME>20251113102934
ACCESSION NUMBER:		0001422848-25-000247
CONFORMED SUBMISSION TYPE:	SCHEDULE 13G
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20251113
DATE AS OF CHANGE:		20251113

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SEMTECH CORP
		CENTRAL INDEX KEY:			0000088941
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		ORGANIZATION NAME:           	04 Manufacturing
		EIN:				952119684
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0125

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-20525
		FILM NUMBER:		251476105

	BUSINESS ADDRESS:	
		STREET 1:		200 FLYNN ROAD
		CITY:			CAMARILLO
		STATE:			CA
		ZIP:			93012-8790
		BUSINESS PHONE:		8054982111

	MAIL ADDRESS:	
		STREET 1:		200 FLYNN ROAD
		CITY:			CAMARILLO
		STATE:			CA
		ZIP:			93012-8790

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Capital Research Global Investors
		CENTRAL INDEX KEY:			0001422848
		ORGANIZATION NAME:           	
		EIN:				951411037
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0630

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G

	BUSINESS ADDRESS:	
		STREET 1:		333 SOUTH HOPE STREET
		STREET 2:		55TH FL
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90071
		BUSINESS PHONE:		213-486-9200

	MAIL ADDRESS:	
		STREET 1:		333 SOUTH HOPE STREET
		STREET 2:		55TH FL
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90071
</SEC-HEADER>
<DOCUMENT>
<TYPE>SCHEDULE 13G
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
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    <submissionType>SCHEDULE 13G</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001422848</cik>
          <ccc>XXXXXXXX</ccc>
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      <liveTestFlag>LIVE</liveTestFlag>



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  <formData>
    <coverPageHeader>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <eventDateRequiresFilingThisStatement>09/30/2025</eventDateRequiresFilingThisStatement>
      <issuerInfo>
        <issuerCik>0000088941</issuerCik>
        <issuerName>Semtech Corp.</issuerName>
        <issuerCusip>816850101</issuerCusip>
        <issuerPrincipalExecutiveOfficeAddress>
          <com:street1>200 Flynn Road</com:street1>
          <com:city>CAMARILLO</com:city>
          <com:stateOrCountry>X1</com:stateOrCountry>
          <com:zipCode>93012-8790</com:zipCode>
        </issuerPrincipalExecutiveOfficeAddress>
      </issuerInfo>
      <designateRulesPursuantThisScheduleFiled>
        <designateRulePursuantThisScheduleFiled>Rule 13d-1(b)</designateRulePursuantThisScheduleFiled>
      </designateRulesPursuantThisScheduleFiled>
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    <coverPageHeaderReportingPersonDetails>

      <reportingPersonName>Capital Research Global Investors</reportingPersonName>
      <citizenshipOrOrganization>DE</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>4691676</soleVotingPower>
        <sharedVotingPower>0</sharedVotingPower>
        <soleDispositivePower>4691676</soleDispositivePower>
        <sharedDispositivePower>0</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>4691676.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <classPercent>5.4</classPercent>
      <typeOfReportingPerson>IA</typeOfReportingPerson>
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      <item1>
        <issuerName>Semtech Corp.</issuerName>
        <issuerPrincipalExecutiveOfficeAddress>200 Flynn Road, CAMARILLO, CA 93012-8790</issuerPrincipalExecutiveOfficeAddress>
      </item1>
      <item2>
        <filingPersonName>Capital Research Global Investors</filingPersonName>
        <principalBusinessOfficeOrResidenceAddress>333 South Hope Street, 55th Fl, Los Angeles, CA  90071
</principalBusinessOfficeOrResidenceAddress>
        <citizenship>N/A</citizenship>
      </item2>
      <item3>
        <notApplicableFlag>N</notApplicableFlag>
        <typeOfPersonFiling>IA</typeOfPersonFiling>
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      <item4>
        <amountBeneficiallyOwned>4,691,676 **

**Capital Research Global Investors ("CRGI") is a division of Capital Research and Management Company ("CRMC"), as well as its investment management subsidiaries and affiliates Capital Bank and Trust Company, Capital International, Inc., Capital International Limited, Capital International Sarl, Capital International K.K., Capital Group Private Client Services, Inc., and Capital Group Investment Management Private Limited (together with CRMC, the "investment management entities"). CRGI's divisions of each of the investment management entities collectively provide investment management services under the name "Capital Research Global Investors." CRGI is deemed to be the beneficial owner of 4,691,676 shares or 5.4% of the 86,773,988 shares believed to be outstanding.</amountBeneficiallyOwned>
        <classPercent>5.4</classPercent>
        <numberOfSharesPersonHas>
          <solePowerOrDirectToVote>4,691,676</solePowerOrDirectToVote>
          <sharedPowerOrDirectToVote>0</sharedPowerOrDirectToVote>
          <solePowerOrDirectToDispose>4,691,676</solePowerOrDirectToDispose>
          <sharedPowerOrDirectToDispose>0</sharedPowerOrDirectToDispose>
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      <item5>
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        <notApplicableFlag>Y</notApplicableFlag>
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      <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.</certifications>
      </item10>
    </items>
    <signatureInformation>
      <reportingPersonName>Capital Research Global Investors</reportingPersonName>
      <signatureDetails>
        <signature>Jae Won Chung</signature>
        <title>Vice President and Senior Counsel II, Capital Research and Management Company</title>
        <date>11/11/2025</date>
      </signatureDetails>
    </signatureInformation>
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</SEC-DOCUMENT>
