X0306 4 2014-02-04 false 0000813672 CADENCE DESIGN SYSTEMS INC CDNS 0001247434 RIBAR GEOFFREY G 2655 SEELY AVENUE, BLDG 5 SAN JOSE CA 95134 false true false false Senior Vice President, CFO Common Stock 2014-02-04 4 A false 36000 0 A 155034 D Common Stock 2014-02-06 4 F false 2144 13.73 D 152890 D Non-Qualified Stock Option (right to buy) 13.81 2014-02-04 4 A false 80000 0 A 2014-03-04 2021-02-04 Common Stock 80000 80000 D Grant of performance-based incentive stock. Option vests at a rate of 1/48th per month. Shares withheld to satisfy tax obligations arising out of vesting of restricted stock. James J. Cowie, Attorney-in-Fact for Geoffrey G. Ribar 2014-02-06