Cadence Design Systems (CDNS)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-09-15 10b5-1 Pre-arranged Plan: Yes --- Issuer --- Name: CADENCE DESIGN SYSTEMS INC (CDNS) CIK: 0000813672 --- Reporting Owner --- Name: Cunningham Paul CIK: 0001847883 Role: Officer (Sr. Vice President) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-09-15 | Code: F (Payment of exercise/tax) Shares: -793 | Price: $273.96 Total Value: $217,250.28 Shares Owned After: 122,793 | Ownership: D (Direct) Footnotes: [F1] Shares withheld to satisfy tax obligations arising out of vesting of Performance Stock Award. [Transaction #2] Security: Common Stock Date: 2026-09-15 | Code: M (Exercise of derivative) Shares: +1,000 | Price: $138.02 Total Value: $138,020.00 Shares Owned After: 123,793 | Ownership: D (Direct) Footnotes: [F2] The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 Trading Plan adopted on 3/16/2026 by the Reporting Person. [Transaction #3] Security: Common Stock Date: 2026-09-15 | Code: S (Open market sale) Shares: -2,000 | Price: $277.12 Total Value: $554,240.00 Shares Owned After: 121,793 | Ownership: D (Direct) Footnotes: [F2] The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 Trading Plan adopted on 3/16/2026 by the Reporting Person. --- Derivative Transactions --- [Transaction #1] Security: Non- Qualified Stock Option (right to buy) Date: 2026-09-15 | Code: M (Exercise of derivative) Shares: -1,000 | Price: $0.00 Exercise Price: $138.02 Exercisable: N/A | Expires: 2028-02-25 Shares Owned After: 6,328 | Ownership: D (Direct) Footnotes: [F3] These options vested at a rate of 1/48th per month starting on March 25, 2021. --- Footnotes (Complete Index) --- F1: Shares withheld to satisfy tax obligations arising out of vesting of Performance Stock Award. F2: The transaction reported in this Form 4 was effected pursuant to a Rule 10b5-1 Trading Plan adopted on 3/16/2026 by the Reporting Person. F3: These options vested at a rate of 1/48th per month starting on March 25, 2021. --- Signature --- /s/ /s/ Ahalya Hildreth, Attorney-in-Fact for Paul Cunningham (2026-09-17)