<SEC-DOCUMENT>0001968582-25-000874.txt : 20250910
<SEC-HEADER>0001968582-25-000874.hdr.sgml : 20250910
<ACCEPTANCE-DATETIME>20250910160454
ACCESSION NUMBER:		0001968582-25-000874
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20250910
DATE AS OF CHANGE:		20250910

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CADENCE DESIGN SYSTEMS INC
		CENTRAL INDEX KEY:			0000813672
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		ORGANIZATION NAME:           	06 Technology
		EIN:				770148231
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	000-15867
		FILM NUMBER:		251305902

	BUSINESS ADDRESS:	
		STREET 1:		2655 SEELY AVENUE BLDG 5
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95134
		BUSINESS PHONE:		4089431234

	MAIL ADDRESS:	
		STREET 1:		2655 SEELY AVENUE
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95134

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ECAD INC /DE/
		DATE OF NAME CHANGE:	19880609

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Brennan Ita M
		CENTRAL INDEX KEY:			0001494211
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		2655 SEELY AVENUE
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95134
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
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      <filer>
        <filerCredentials>
          <cik>0001494211</cik>
          <ccc>XXXXXXXX</ccc>
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    <issuerInfo>
      <issuerCik>0000813672</issuerCik>
      <issuerName>CADENCE DESIGN SYSTEMS INC</issuerName>
      <secFileNumber>000-15867</secFileNumber>
      <issuerAddress>
        <com:street1>2655 SEELY AVENUE BLDG 5</com:street1>
        <com:city>SAN JOSE</com:city>
        <com:stateOrCountry>CA</com:stateOrCountry>
        <com:zipCode>95134</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>408-943-12134</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Ita Brennan</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Board Member</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>J.P. Morgan Securities LLC</name>
        <address>
          <com:street1>390 Madison Avenue</com:street1>
          <com:street2>6th Floor</com:street2>
          <com:city>New York</com:city>
          <com:stateOrCountry>NY</com:stateOrCountry>
          <com:zipCode>10017</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>180</noOfUnitsSold>
      <aggregateMarketValue>62730</aggregateMarketValue>
      <noOfUnitsOutstanding>242490000</noOfUnitsOutstanding>
      <approxSaleDate>09/10/2025</approxSaleDate>
      <securitiesExchangeName>Nasdaq</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>05/04/2023</acquiredDate>
      <natureOfAcquisitionTransaction>RSU Vest</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>180</amountOfSecuritiesAcquired>
      <paymentDate>05/04/2023</paymentDate>
      <natureOfPayment>NA</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <noticeSignature>
      <noticeDate>09/10/2025</noticeDate>
      <signature>/s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Ita Brennan.</signature>
    </noticeSignature>
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