Company: SNPS
Filing Date: 2025-03-05
Form Type: 424B5
Source: 0001140361-25-007235
Chunk: 9

Company: SYNOPSYS INC
Filing Date: 2025-03-05
Form: 424B5
Chunk 9
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 current industry trends towards customer and vendor consolidation, and the impact of such consolidation; |

| • | the completion of development of our unfinished products, or further development or integration of our existing products; |

| • | the status of litigation and/or regulatory investigations; |

| • | the expected impact of any cybersecurity threats or other security breaches; |

| • | our ability to protect our intellectual property; |

| • | our ability to attract and retain senior management and key employees worldwide; |

| • | the impact of tax laws and changes in such laws on our business; |

| • | our cash, cash equivalents and cash generated from operations; and |

| • | our future liquidity requirements. |

We caution investors that forward-looking statements are only predictions based on our current expectations about future events and are not guarantees of future performance. You should not place undue reliance on these forward-looking statements, which speak only as of the date of this prospectus supplement. We undertake no obligation to publicly release any revisions to the forward-looking statements or reflect events or circumstances after the date of this document, except as required by law.

S-vi

#### TABLE OF CONTENTS

### SUMMARY
The following summary highlights material information contained elsewhere in this prospectus supplement, the accompanying prospectus and the documents incorporated by reference herein and therein but does not contain all of the information you need to consider in making your decision to invest in any of the notes. This summary is qualified in its entirety by the more detailed information and consolidated financial statements and notes thereto included in this prospectus supplement, the accompanying prospectus and the documents incorporated by reference herein and therein. You should read carefully this entire prospectus supplement and the accompanying prospectus and should consider, among other things, the matters set forth in the section entitled “Risk Factors” below and in our Annual Report on Form 10-K for the fiscal year ended November 2, 2024 and our Quarterly Report on Form 10-Q for the fiscal quarter ended January 31, 2025, which are each incorporated by reference herein, before deciding to invest in any of the notes.

#### Synopsys, Inc.
Synopsys delivers trusted and comprehensive silicon to systems design solutions, from electronic design automation (“EDA”), including system verification and validation solutions, to silicon intellectual property (“IP”). We partner closely with semiconductor and systems customers across a wide range of industries to maximize their engineering and research and development (R&D) capacity. We are catalyzing the era of pervasive intelligence, powering innovation today that ignites