Company: SNPS
Filing Date: 2025-03-03
Form Type: 424B5
Source: 0001140361-25-006661
Chunk: 23

Company: SYNOPSYS INC
Filing Date: 2025-03-03
Form: 424B5
Chunk 23
---
 notes and 20  notes. See “Description of the Notes—Special Mandatory Redemption” in this prospectus supplement.

#### Absence of a Public Market
There is no public trading market for any series of the notes, and there is no intention to apply for listing of the notes of any series on any national securities exchange or for quotation of the notes of any series on any automated dealer quotations system. See “Risk Factors—Risks Related to the Notes—Active trading markets for the notes may not develop.”

#### Further Issues
We may, without notice to or consent of the holders of the notes, increase the principal amount of each series of notes by issuing additional notes in the future having the same ranking, interest rate, maturity and the same other terms and conditions as the outstanding notes of such series, except for any differences in the issue date, the issue price, and, in certain circumstances, the date interest begins to accrue and the first interest payment date. Under the indenture governing the notes, the notes of any series and any additional notes that we may issue will be treated as a single series with the outstanding notes of such series for all purposes under the indenture governing the notes (including for purposes of determining whether

<div align='center'>S-10</div>

#### TABLE OF CONTENTS
the required percentage of the holders of record has given approval or consent to an amendment or waiver or joined in directing the trustee to take certain actions on behalf of all holders) and may (but are not required to) bear the same CUSIP number as the applicable series of notes offered hereby. To the extent additional notes of any series are issued but fail to meet the criteria for a “qualified reopening,” those additional notes will be assigned separate CUSIP and ISIN numbers and will not be deemed fungible with the then outstanding notes for federal income tax purposes.

#### U.S. Federal Income Tax Considerations
Please see “United States Federal Income Tax Considerations” for important information regarding the possible tax consequences to holders of the notes. Potential investors should consult their own professional advisers regarding the possible tax consequences under the laws of the jurisdictions that apply to them.

#### Governing Law
New York.

#### Trustee
U.S. Bank Trust Company, National Association.

#### Risk Factors
Investing in the notes involves certain risks. You should carefully consider all of the information in this prospectus supplement and the accompanying prospectus. See “Risk Factors” beginning on page S- 20 in this prospectus supplement and the sections