X0306 4 2015-12-01 0 0001301031 Demandware Inc DWRE 0001203561 KANE CHARLES C/O DEMANDWARE, INC. 5 WALL STREET BURLINGTON MA 01803 1 0 0 0 Common Stock 2015-12-01 4 S 0 2500 50.8482 D 12685 D The price reported is the weighted average of the shares sold. The shares were sold at varying prices in the range of $50.8416 to $50.8650. The reporting person undertakes, upon the request of the staff of the Securities and Exchange Commission, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price. /s/ Kathleen B. Patton, Attorney-in-Fact for Charles Kane 2015-12-02