X0306 4 2015-04-10 0 0001157377 ADVISORY BOARD CO ABCO 0001242813 GRUA PETER J 2445 M STREET, NW WASHINGTON DC 20037 1 0 0 0 Restricted Stock Units 2015-04-10 4 A 0 2104 0.00 A Common Stock 2104 2104 D Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Company's common stock. The RSUs vest on June 3, 2015, unless deferred. Upon vesting, each RSU is settled by the delivery of the underlying shares of common stock or payment of the current cash value of the vested shares, at the discretion of the Company. /s/ Peter J. Grua by Seth A. Allyn by Power of Attorney 2015-04-14