Ceridian HCM Holding Inc. (“Issuer”)

3311 East Old Shakopee Road

Minneapolis, Minnesota 55425

This statement is being filed on behalf of the following (collectively, the “Reporting Persons): (1) THL Holdco, LLC, a Delaware limited liability company (“THL Holdco”); (2) Thomas H. Lee Advisors, LLC, a Delaware limited liability company (“THL Advisors”); (3) Thomas H. Lee Partners, L.P., a Delaware limited partnership (“THL Partners”); (4) Thomas H. Lee Equity Fund VI, L.P., a Delaware limited partnership (“THL Equity VI”); (5) Thomas H. Lee Parallel Fund VI, L.P., a Delaware limited partnership (“Parallel Fund VI”); (6) Thomas H. Lee Parallel (DT) Fund VI, L.P., a Delaware limited partnership (“DT Fund VI”); (7) THL Equity Advisors VI, LLC, a Delaware limited liability company (“THL Equity Advisors VI”); (8) THL Equity Fund VI Investors (Ceridian), L.P., a Delaware limited partnership (“THL Ceridian I”); (9) THL Equity Fund VI Investors (Ceridian) II, L.P., a Delaware limited partnership (“THL Ceridian II”); (10) THL Equity Fund VI Investors (Ceridian) III, LLC, a Delaware limited liability company (“THL Ceridian III”); (11) THL Equity Fund VI Investors (Ceridian) IV, LLC, a Delaware limited liability company (“THL Ceridian IV”); (12) THL Equity Fund VI Investors (Ceridian) V, LLC, a Delaware limited liability company (“THL Ceridian V”); (13) THL Equity Fund VI Investors (Ceridian) VI, LP, a Delaware limited partnership (“THL Ceridian VI” and together with THL Ceridian I, THL Ceridian II, THL Ceridian III, THL Ceridian IV and THL Ceridian V, the “THL Ceridian Funds”); (14) THL Coinvestment Partners, L.P., a Delaware limited partnership (“THL Coinvestment”); (15) THL Operating Partners, L.P., a Delaware limited partnership (“THL Operating”); (16) Great-West Investors, L.P., a Delaware limited partnership (“Great-West”); and (17) Putnam Investments Employees’ Securities Company III LLC, a Delaware limited liability company (“Putnam III”).  Entities (1) through (15) are referred to as the “THL Entities.”

THL Holdco is the managing member of THL Advisors, which is the general partner of THL Partners, which in turn is the general partner of THL Coinvestment and THL Operating and the sole member of THL Equity Advisors VI. THL Advisors is attorney in fact for Great-West and Putnam Investments, LLC, which is the managing member of Putnam III with respect to the shares of common stock they hold. THL Equity Advisors VI is the general partner of Parallel Fund VI, DT Fund VI, THL Equity VI and the general partner or sole member, as applicable, of the THL Ceridian Funds.

The address of Great-West:

8515 East Orchard Road, Greenwood

Village, Colorado 80111

The address of Putnam III:

 c/o Putnam Investment, Inc.

100 Federal Street

Boston, Massachusetts, 02110

For each of the other Reporting Persons:

c/o Thomas H. Lee Partners, L.P.

100 Federal Street, 35th Floor

Boston, MA 02110

THL Holdco, LLC – Delaware

Thomas H. Lee Advisors, LLC – Delaware

Thomas H. Lee Partners, L.P. – Delaware

THL Equity Advisors VI, LLC – Delaware

Thomas H. Lee Parallel Fund VI, L.P. – Delaware

Thomas H. Lee Parallel (DT) Fund VI, L.P. – Delaware

Thomas H. Lee Equity Fund VI, L.P. – Delaware

Putnam Investments Employees’ Securities Company III LLC – Delaware

Common Stock par value $0.01 per share (“Common Stock”)

The responses of the Reporting Persons to Item 4(a) are incorporated herein by reference.

If this statement is being filed to report the fact that as of the date hereof the Reporting Persons have ceased to be beneficial owners of more than 5 percent of the Common Stock, check the following: ☒.

The responses of the Reporting Persons to Items 2(a) and 4(a) are incorporated herein by reference.

Under certain circumstances, partners or members of a Reporting Person, as the case may be, could have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, shares of Common Stock owned by such Reporting Person.

Not Applicable.

See Item 4(a) above.

Not Applicable.

Not Applicable.