<SEC-DOCUMENT>0001199719-20-000136.txt : 20201214
<SEC-HEADER>0001199719-20-000136.hdr.sgml : 20201214
<ACCEPTANCE-DATETIME>20201214161044
ACCESSION NUMBER:		0001199719-20-000136
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20201210
FILED AS OF DATE:		20201214
DATE AS OF CHANGE:		20201214

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Kankanwadi Sudhindra
		CENTRAL INDEX KEY:			0001652437

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-19807
		FILM NUMBER:		201386261

	MAIL ADDRESS:	
		STREET 1:		690 E MIDDLEFIELD ROAD
		CITY:			MOUNTAIN VIEW
		STATE:			CA
		ZIP:			94043

ISSUER:		

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

	BUSINESS ADDRESS:	
		STREET 1:		690 E MIDDLEFIELD RD
		CITY:			MOUNTAIN VIEW
		STATE:			CA
		ZIP:			94043
		BUSINESS PHONE:		6505845000

	MAIL ADDRESS:	
		STREET 1:		690 E MIDDLEFIELD RD
		CITY:			MOUNTAIN VIEW
		STATE:			CA
		ZIP:			94043
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
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<DESCRIPTION>PRIMARY DOCUMENT
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    <periodOfReport>2020-12-10</periodOfReport>

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    <issuer>
        <issuerCik>0000883241</issuerCik>
        <issuerName>SYNOPSYS INC</issuerName>
        <issuerTradingSymbol>SNPS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001652437</rptOwnerCik>
            <rptOwnerName>Kankanwadi Sudhindra</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>690 EAST MIDDLEFIELD ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>MOUNTAIN VIEW</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94043</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Senior VP, Finance &amp; CAO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2020-12-10</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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                <transactionShares>
                    <value>1112</value>
                    <footnoteId id="F1"/>
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    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Non-Qualified Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
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                <value>2020-12-10</value>
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                    <value>4556</value>
                </transactionShares>
                <transactionPricePerShare>
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                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
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            <exerciseDate>
                <value>2021-12-10</value>
                <footnoteId id="F4"/>
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            <expirationDate>
                <value>2027-12-10</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>4556</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
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                    <value>4556</value>
                </sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.0</value>
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            <transactionDate>
                <value>2020-12-10</value>
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                <footnoteId id="F5"/>
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            <transactionAmounts>
                <transactionShares>
                    <value>3524</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
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            <exerciseDate>
                <value>2021-12-08</value>
                <footnoteId id="F6"/>
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            <expirationDate>
                <value>2024-12-08</value>
            </expirationDate>
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                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>3524</value>
                </underlyingSecurityShares>
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                <sharesOwnedFollowingTransaction>
                    <value>3524</value>
                </sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Represents one tranche of a performance-based restricted stock award granted on October 18, 2019 for which a non-GAAP operating margin goal for the fiscal year ended October 31, 2020 was determined by the Compensation Committee to have been achieved on December 10, 2020.  All of the stock units subject to this tranche vested on December 10, 2020.</footnote>
        <footnote id="F2">These shares were retained by the Company in order to meet the tax withholding obligations of the reporting person in connection with the vesting of an installment of the performance-based restricted stock unit award. The Compensation Committee approved the disposition of shares by the reporting person and the amount retained by the Company was not in excess of the amount of the tax liability.</footnote>
        <footnote id="F3">Grant to reporting person to buy shares of common stock under the Synopsys, Inc 2006 Employee Equity Incentive Plan.</footnote>
        <footnote id="F4">1/4 of the grant becomes exercisable one year after grant date with the remainder becoming exercisable in a series of 12 equal quarterly installments thereafter, subject to continued service through each vesting date.</footnote>
        <footnote id="F5">The Compensation Committee of the Board of Directors approved a restricted stock unit grant under the Synopsys, Inc. 2006 Employee Equity Incentive Plan.</footnote>
        <footnote id="F6">25% of the units vest on the date shown followed by three equal annual installments.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>By: POA pursuant Christina Escalante-Dutra For: Sudhindra Kankanwadi</signatureName>
        <signatureDate>2020-12-14</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
