X0206 3 2013-03-18 0 0001553023 CyrusOne Inc. CONE 0001573146 Bosse Thomas Wesley C/O CYRUSONE INC. 1649 WEST FRANKFORD ROAD CARROLLTON TX 75007 0 1 0 0 Vice President, GC and Secy Common Stock 65790 D Common Stock 5000 D Represents shares of restricted stock granted to Mr. Bosse pursuant to the CyrusOne 2012 Long Term Incentive Plan. /s/ Thomas W. Bosse 2013-03-28