(1) | Includes 6,823,923 shares of common stock held by Thomas H. Lee Equity Fund VI, L.P., 4,620,799 shares of common stock held by Thomas H. Lee Parallel Fund VI, L.P., 807,160 shares of common stock held by Thomas H. Lee Parallel (DT) Fund VI, L.P., 34,924 shares of common stock held by Great-West Investors LP, 34,894 shares of common stock held by Putnam Investments Employees’ Securities Company III LLC, 46,332 shares of common stock held by THL Coinvestment Partners, L.P., 14,860 shares of common stock held by THL Operating Partners, LP, 6,907,768 shares of common stock held by THL Equity Fund VI Investors (Ceridian), L.P., 3,089,851 shares of common stock held by THL Equity Fund VI Investors (Ceridian) II, L.P., 121,085 shares of common stock held by THL Equity Fund VI Investors (Ceridian) III, LLC, 172,963 shares of common stock held by THL Equity Fund VI Investors (Ceridian) IV, LLC, 36,879 shares of common stock held by THL Equity Fund VI Investors (Ceridian) V, LLC and 1,023,253 shares of common stock held by THL Equity Fund VI Investors (Ceridian) VI, L.P. THL Equity Advisors VI, LLC is the general partner of Thomas H. Lee Equity Fund VI, L.P., Thomas H. Lee Parallel Fund VI, L.P., and Thomas H. Lee Parallel (DT) Fund VI, L.P. Thomas H. Lee Partners, L.P. is the general partner of THL Coinvestment Partners, L.P. and THL Operating Partners, L.P. Thomas H. Lee Advisors, LLC is attorney in fact for Great-West Investors LP and Putnam Investments LLC, which is the managing member of Putnam Investments Employees’ Securities Company III LLC, with respect to the shares of common stock they hold. THL Equity Advisors VI, LLC is the general partner of THL Equity Fund VI Investors (Ceridian), L.P., THL Equity Fund VI Investors (Ceridian) II, L.P. and THL Equity Fund VI Investors (Ceridian) VI, L.P. THL Equity Advisors VI, LLC is the manager of THL Equity Fund VI Investors (Ceridian) III, LLC, THL Equity Fund VI Investors (Ceridian) IV, LLC and THL Equity Fund VI Investors (Ceridian) V, LLC. The address of Great-West Investors LP is 8515 East Orchard Road, Greenwood Village, Colorado 80111; the address of Putnam Investments Employees’ Securities Company III LLC is c/o Putnam |