X0508 4 2026-03-15 0 0000883241 SYNOPSYS INC SNPS 0001249802 DE GEUS AART 675 ALMANOR AVENUE SUNNYVALE CA 94085 1 1 0 0 EXECUTIVE CHAIR 0 Common Stock 2026-03-15 4 M 0 1763 0.0 A 120758 D Common Stock 2026-03-15 4 F 0 630 412.63 D 120128 D Common Stock 308791 I by Family Trust Common Stock 14500 I by Partnership Restricted Stock Units 0.0 2026-03-15 4 M 0 1763 0.0 D 2024-03-15 2027-03-15 Common Stock 1763 1763 D These shares were retained by the Company in order to meet the tax withholding obligations of the reporting person in connection with the vesting of an installment of the restricted stock unit award. The Compensation Committee approved the disposition of shares by the reporting person and the amount retained by the Company was not in excess of the amount of the tax liability. Each stock unit converts into one share of Synopsys common stock. 25% of the units vest on the date shown followed by three equal annual installments, subject to continued service through each vesting date. By: POA pursuant Mary Lai For: Aart de Geus 2026-03-16