SYNOPSYS INC — Director's Dealing 2010

Sep 30, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SYNOPSYS INC (SNPS)
CIK: 0000883241
Period of Report: 2010-09-29

Reporting Person: Cabrera Brian E (VP, Legal & General Counsel)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-09-29	Common Stock	M	5000	$19.76	Acquired	5982	Direct
2010-09-29	Common Stock	S	5000	$24.8163	Disposed	982	Direct
2010-09-29	Common Stock	M	5104	$17.64	Acquired	6086	Direct
2010-09-29	Common Stock	S	5104	$24.8163	Disposed	982	Direct
2010-09-29	Common Stock	M	6558	$21.02	Acquired	7540	Direct
2010-09-29	Common Stock	S	6558	$24.8163	Disposed	982	Direct
2010-09-29	Common Stock	S	982	$24.8301	Disposed	0	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-09-29	Non-Qualified Stock Option (right to buy)	$17.64	M	5104	Disposed	2015-12-10	Common Stock (5104)	Direct
2010-09-29	Non-Qualified Stock Option (right to buy)	$19.76	M	5000	Disposed	2013-06-07	Common Stock (5000)	Direct
2010-09-29	Non-Qualified Stock Option (right to buy)	$21.02	M	6558	Disposed	2016-12-04	Common Stock (6558)	Direct

Footnotes

F1: For the total number of 16,662 option shares sold on 09.29.10 the average price of $24.816265 consists of 3,700 at $24.81, 6,762 at $24.80, 3,000 at $24.85, 200 at $24.86, 1,800 at $24.82, 1,200 at 24.83

F2: 3/48ths of the option becomes exercisable on the date shown followed by 45 equal monthly installments