Company: SNPS
Filing Date: 2025-03-03
Form Type: 424B5
Source: 0001140361-25-006661
Chunk: 39

Company: SYNOPSYS INC
Filing Date: 2025-03-03
Form: 424B5
Chunk 39
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Special Mandatory Redemption.”**

<div align='center'>S-23</div>

#### TABLE OF CONTENTS
The proceeds from this offering will not be deposited into an escrow account pending completion of the Ansys Merger or any Special Mandatory Redemption, nor will Synopsys be required to grant any security interest or other lien on those proceeds to secure any redemption of the notes. If Synopsys is required to redeem the 20  notes, 20  notes, 20  notes and 20  notes, the ability to pay the redemption price may be limited by our financial resources at the time. In addition, whether or not a Special Mandatory Redemption of the 20  notes, 20  notes, 20  notes and 20  notes or any such other indebtedness or securities is ultimately triggered, the existence of these redemption provisions may adversely affect the trading prices of such notes until such time, if any, as the Ansys Merger is consummated. Holders of the 20  notes, 20  notes, 20  notes and 20  notes will have no right to opt out of the special mandatory redemption provision of such notes.

If we are able to redeem the 20  notes, 20  notes, 20  notes and 20  notes pursuant to the special mandatory redemption provisions, you may not be able to reinvest the proceeds you receive from the redemption in a comparable security at an effective interest rate or return on investment as high as what you otherwise would have received on your notes being redeemed.

Synopsys will not be required to redeem the 20  notes, 20  notes, 20  notes and 20  notes as long as the Ansys Merger closes on or before the Special Mandatory Redemption End Date, even if between the closing of this offering and the closing of the Ansys Merger, Synopsys experiences any changes (including any material changes) in its business or financial condition. The 20  notes and 20  notes are not subject to the Special Mandatory Redemption and we expect such notes to remain outstanding even if we do not consummate the Ansys Merger.

#### Risks Related to the Ansys Merger
**We may not complete our pending acquisition of Ansys within the time frame we anticipate or at all.

The completion of our pending acquisition of Ansys expected to occur in the first half of