Type	Name	Date
Credit agreement	Amended and Restated Credit Agreement, among Synopsys as Borrower, the several Lenders from time to time parties thereto, Bank of America, N.A. and Wells Fargo Bank, N.A. as Co-Syndication Agents, HSBC Bank USA, N.A. and Union Bank, N.A. as Co-Documentation Agents, JPMorgan Chase Bank, N.A., as Administrative Agent, and J.P. Morgan Securities LLC, Merrill Lynch, Pierce, Fenner & Smith Incorporated and Wells Fargo Securities, LLC, as Co-Lead Arrangers and Co-Bookrunners	02/22/2012
Credit agreement	Credit Agreement, among the Company as Borrower, the several Lenders from time to time parties thereto, Bank of America, N.A. and Wells Fargo Bank, N.A. as Co-Syndication Agents, HSBC Bank USA, N.A. and Union Bank, N.A. as Co-Documentation Agents, and JPMorgan Chase Bank, N.A. as Administrative Agent	10/18/2011

Type	Name	Date
By-Laws	Amended and Restated Bylaws of Synopsys, Inc	06/03/2009

Type	Name	Date
Employment agreement	Amended and Restated Employment Agreement, by and between Synopsys, Inc. and Dr. Aart de Geus	12/21/2016
Employment agreement	Amended and Restated Employment Agreement, by and between Synopsys, Inc. and Dr. Chi-Foon Chan	12/21/2016

Type	Name	Date
Merger agreement	Agreement and Plan of Merger among Synopsys, Inc., Magma Design Automation, Inc. and Lotus Acquisition Corp.	12/01/2011