Company: SNPS
Filing Date: 2025-02-14
Form Type: DEF 14A
Source: 0000883241-25-000008
Chunk: 2

Company: SYNOPSYS INC
Filing Date: 2025-02-14
Form: DEF 14A
Chunk 2
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 10, 2025, we are not aware of any other matters to be submitted for consideration at the Annual Meeting.

All of our stockholders of record at the close of business on February 10, 2025 are entitled to attend and vote at the Annual Meeting. A list of registered stockholders entitled to vote at the meeting will be available for ten days until the end of the day before the meeting. If you want to inspect this list, email our Investor Relations department at synopsys-ir@synopsys.com.

Whether or not you plan to attend the Annual Meeting, we urge you to cast your vote in advance of the Annual Meeting via one of the methods described below and in the attached Proxy Statement. The Proxy Statement contains important information for you to consider when deciding how to vote on the above items. You do not need to attend the Annual Meeting in order to vote. For most items being put to a vote, if you do not provide voting instructions in person (virtually), via the Internet, by telephone, or by returning the proxy card or voting instruction card, your shares will not be voted. Please vote as promptly as possible. Every stockholder vote is important. Please see the section titled “About the Annual Meeting” beginning on page 108for answers to common questions about the Annual Meeting, voting, attendance, submitting a proposal for next year’s annual meeting of stockholders, and other procedures.

Sincerely yours,

#### John F. Runkel, Jr.
General Counsel and Corporate Secretary

Sunnyvale, California

February 14, 2025

### HOW TO VOTE
| Internet          |     | Telephone      |     | Mail                                            |
| www.proxyvote.com |     | 1-800-690-6903 |     | Mark, sign, date and promptly mail the enclosed 
 proxy card in the postage-paid envelope         |

<div align='center'>Important Notice Regarding the Internet Availability of Proxy Materials for the Annual Meeting to Be Held on April 10, 2025

The Proxy Statement and our Annual Report on Form 10-K for the year ended November 2, 2024 will be available to stockholders at http://www.proxyvote.com on or about February 14, 2025.</div>

#### 2025 Proxy Statement3
TABLE OF CONTENTS

| Letter to Our Stockholders                                                            |     |   1 |
| Notice of2025Annual Meeting of Stockholders                                           |     |   3 |
| Proxy Statement Summary