X0206 3 2014-07-09 0 0001066104 CORPORATE EXECUTIVE BOARD CO CEB 0001612349 Thune Warren 1919 NORTH LYNN ST. ARLINGTON VA 22209 0 1 0 0 Group President Common Stock 6703 D Restricted Stock Units 0.00 2015-03-30 Common Stock 1918 D Restricted Stock Units 0.00 Common Stock 3582 D Restricted Stock Units 0.00 Common Stock 4637 D Restricted Stock Units 0.00 Common Stock 5948 D Performance-Based Restricted Stock Units 0.00 Common Stock 2686 D Performance-Based Restricted Stock Units 0.00 Common Stock 2003 D Performance-Based Restricted Stock Units 0.00 Common Stock 2819 D N/A Restricted Stock Units vest equally in two increments in the following months: March 2015 and March 2016. Restricted Stock Units vest equally in three increments in the following months: March 2015, March 2016, and March 2017. Restricted Stock Units vest equally in four increments in the following months: April 2015, March 2016, March 2017 and March 2018. The performance period of these Performance-Based Restricted Stock Units is a three-year period beginning January 1, 2012 and ending December 31, 2014. After the three-year period, the awards may vest if certain performance criteria established by the Company's Board of Directors has been met over the performance period. The performance period of these Performance-Based Restricted Stock Units is a three-year period beginning January 1, 2013 and ending December 31, 2015. After the three-year period, the awards may vest if certain performance criteria established by the Company's Board of Directors has been met over the performance period. The performance period of these Performance-Based Restricted Stock Units is a three-year period beginning January 1, 2014 and ending December 31, 2016. After the three-year period, the awards may vest if certain performance criteria established by the Company's Board of Directors has been met over the performance period. /s/ Warren Thune Signed by Power of Attorney, James B. Anschutz 2014-07-11