<SEC-DOCUMENT>0001949846-24-000081.txt : 20240227
<SEC-HEADER>0001949846-24-000081.hdr.sgml : 20240227
<ACCEPTANCE-DATETIME>20240227101832
ACCESSION NUMBER:		0001949846-24-000081
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20240227
DATE AS OF CHANGE:		20240227

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SYNOPSYS INC
		CENTRAL INDEX KEY:			0000883241
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		ORGANIZATION NAME:           	06 Technology
		IRS NUMBER:				561546236
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	000-19807
		FILM NUMBER:		24682945

	BUSINESS ADDRESS:	
		STREET 1:		675 ALMANOR AVE
		CITY:			SUNNYVALE
		STATE:			CA
		ZIP:			94085
		BUSINESS PHONE:		6505845000

	MAIL ADDRESS:	
		STREET 1:		675 ALMANOR AVE
		CITY:			SUNNYVALE
		STATE:			CA
		ZIP:			94085

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			VALLEE ROY
		CENTRAL INDEX KEY:			0001220020
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		2211 S 47TH ST
		CITY:			PHOENIX
		STATE:			AZ
		ZIP:			85034
</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>0001220020</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0000883241</issuerCik>
      <issuerName>SYNOPSYS INC</issuerName>
      <secFileNumber>000-19807</secFileNumber>
      <issuerAddress>
        <com:street1>675 ALMANOR AVE</com:street1>
        <com:city>SUNNYVALE</com:city>
        <com:stateOrCountry>CA</com:stateOrCountry>
        <com:zipCode>94085</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>6505845000</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>VALLEE ROY</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Director</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Charles Schwab Corporation</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>10000</noOfUnitsSold>
      <aggregateMarketValue>5757000.00</aggregateMarketValue>
      <noOfUnitsOutstanding>152543690</noOfUnitsOutstanding>
      <approxSaleDate>02/27/2024</approxSaleDate>
      <securitiesExchangeName>Nasdaq</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>04/13/2020</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Award</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>1503</amountOfSecuritiesAcquired>
      <paymentDate>04/13/2020</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>04/09/2019</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Award</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>2972</amountOfSecuritiesAcquired>
      <paymentDate>04/09/2019</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>04/02/2014</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Award</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>2232</amountOfSecuritiesAcquired>
      <paymentDate>04/02/2014</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>04/03/2013</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Award</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>1515</amountOfSecuritiesAcquired>
      <paymentDate>04/03/2013</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>04/03/2013</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Award</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>1343</amountOfSecuritiesAcquired>
      <paymentDate>04/03/2013</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>04/03/2013</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Award</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>435</amountOfSecuritiesAcquired>
      <paymentDate>04/03/2013</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <remarks>Registration - RCV Holdings LLC / Roy Vallee, authorized agent</remarks>
    <noticeSignature>
      <noticeDate>02/27/2024</noticeDate>
      <signature>Roy Vallee</signature>
    </noticeSignature>
  </formData>
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</SEC-DOCUMENT>
