Cadence Design Systems (CDNS)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-03-18 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: CADENCE DESIGN SYSTEMS INC (CDNS) CIK: 0000813672 --- Reporting Owner --- Name: Scannell Paul CIK: 0002031609 Role: Officer (Sr. Vice President) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-03-18 | Code: A (Grant or award) Shares: +8,962 | Price: $0.00 Shares Owned After: 41,574 | Ownership: D (Direct) Footnotes: [F1] Represents Performance-Based Restricted Stock Units that have met the performance criteria. [Transaction #2] Security: Common Stock Date: 2026-03-18 | Code: A (Grant or award) Shares: +7,364 | Price: $0.00 Shares Owned After: 48,938 | Ownership: D (Direct) Footnotes: [F2] Represents Performance-Based Restricted Stock Units that have met the performance criteria, which vest in three equal annual installments on the first, second and third anniversaries of the grant date subject to continued service. [Transaction #3] Security: Common Stock Date: 2026-03-18 | Code: F (Payment of exercise/tax) Shares: -4,492 | Price: $289.64 Total Value: $1,301,062.88 Shares Owned After: 44,446 | Ownership: D (Direct) Footnotes: [F3] Shares withheld to satisfy tax obligations arising out of vesting of Performance-Based Restricted Stock Units that have met the performance criteria. --- Footnotes (Complete Index) --- F1: Represents Performance-Based Restricted Stock Units that have met the performance criteria. F2: Represents Performance-Based Restricted Stock Units that have met the performance criteria, which vest in three equal annual installments on the first, second and third anniversaries of the grant date subject to continued service. F3: Shares withheld to satisfy tax obligations arising out of vesting of Performance-Based Restricted Stock Units that have met the performance criteria. --- Signature --- /s/ /s/ Ahalya Hildreth, Attorney-in-Fact for Paul Scannell (2026-03-20)