<SEC-DOCUMENT>0001921094-23-001107.txt : 20231219
<SEC-HEADER>0001921094-23-001107.hdr.sgml : 20231219
<ACCEPTANCE-DATETIME>20231219160834
ACCESSION NUMBER:		0001921094-23-001107
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20231219
DATE AS OF CHANGE:		20231219

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
		IRS NUMBER:				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:		231497379

	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:			SANGIOVANNI VINCENTELLI ALBERTO
		CENTRAL INDEX KEY:			0001181490
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		144
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001181490</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <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>4089431234</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>SANGIOVANNI VINCENTELLI ALBERTO</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Director</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Charles Schwab &amp; Co., Inc.</name>
        <address>
          <com:street1>3000 Schwab Way</com:street1>
          <com:city>Westlake</com:city>
          <com:stateOrCountry>TX</com:stateOrCountry>
          <com:zipCode>76262</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>6000</noOfUnitsSold>
      <aggregateMarketValue>1650000.00</aggregateMarketValue>
      <noOfUnitsOutstanding>272062000</noOfUnitsOutstanding>
      <approxSaleDate>12/19/2023</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>02/16/2021</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Lapse</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>CADENCE DESIGN SYSTEMS, INC.</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>1500</amountOfSecuritiesAcquired>
      <paymentDate>02/16/2021</paymentDate>
      <natureOfPayment>Equity Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>02/08/2017</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Lapse</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>CADENCE DESIGN SYSTEMS, INC.</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>4500</amountOfSecuritiesAcquired>
      <paymentDate>02/08/2017</paymentDate>
      <natureOfPayment>Equity Compensation</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <remarks>Shares sold in the ALBERTO SANGIOVANNI-VINCENTELLI TRUST</remarks>
    <noticeSignature>
      <noticeDate>12/19/2023</noticeDate>
      <planAdoptionDates>
        <planAdoptionDate>09/14/2023</planAdoptionDate>
      </planAdoptionDates>
      <signature>ALBERTO SANGIOVANNI VINCENTELLI TTEE</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
