144 0002056628 XXXXXXXX LIVE 0001590955 Paycom Software, Inc. 001-36393 7501 W. Memorial Road Oklahoma City OK 73142 (405)-722-6900 Foster Robert D. Officer Common Stock Morgan Stanley Co.

1585 BROADWAY New York NY 10036

1300 211458 56269005 12/10/2025 NYSE Common Stock 11/14/2022 Compensation Paycom Software, Inc. N 15000 11/14/2022 Compensation Y 12/11/2025 /s/ Robert D Foster