X0306 4 2019-05-10 0 0001590955 Paycom Software, Inc. PAYC 0001594487 Richison Chad R. 7501 W. MEMORIAL ROAD OKLAHOMA CITY OK 73142 1 1 1 0 President and CEO Common Stock 2019-05-10 4 F 0 9314 208.39 D 4171408 D Common Stock 3670999 I By Ernest Group, Inc. Common Stock 229135 I By The Ruby Group, Inc. Represents shares of common stock of Paycom Software, Inc. (the "Issuer") withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of 21,000 shares of restricted stock granted to the reporting person on April 26, 2017. No shares were issued or sold in this transaction. Includes 105,000 unvested shares of restricted stock. Represents shares of common stock owned by Ernest Group, Inc. ("Ernest Group"). The reporting person is the sole director of Ernest Group and Ernest Group is wholly owned by the reporting person and certain trusts for the reporting person's children, for which the reporting person serves as trustee. The reporting person may be deemed to beneficially own the shares of common stock owned by Ernest Group. The reporting person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein. Neither the filing of this report nor anything herein shall be deemed an admission that the reporting person is, for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose, the beneficial owner of such securities. Represents shares of common stock owned by The Ruby Group, Inc. ("Ruby Group"). The reporting person is the sole director and sole shareholder of Ruby Group and may be deemed to beneficially own the shares of common stock owned by Ruby Group. /s/ Chad R. Richison 2019-05-13