<SEC-DOCUMENT>0001199719-18-000077.txt : 20181211
<SEC-HEADER>0001199719-18-000077.hdr.sgml : 20181211
<ACCEPTANCE-DATETIME>20181211140550
ACCESSION NUMBER:		0001199719-18-000077
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20181208
FILED AS OF DATE:		20181211
DATE AS OF CHANGE:		20181211

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Pham Trac
		CENTRAL INDEX KEY:			0001627340

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-19807
		FILM NUMBER:		181228447

	MAIL ADDRESS:	
		STREET 1:		700 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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    <footnotes>
        <footnote id="F1">These shares were retained by the Company in order to meet the tax withholding obligations of the award holder in connection with the vesting of an installment of the performance restricted stock unit award. The Compensation Committee approved the disposition of shares by the award holder and the amount retained by the Company was not in excess of the amount of the tax liability.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>By: POA pursuant Christina Escalante-Dutra For: Trac Pham</signatureName>
        <signatureDate>2018-12-11</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
