X0306 4 2016-08-01 0 0001590955 Paycom Software, Inc. PAYC 0001594487 Richison Chad R. 7501 W. MEMORIAL ROAD OKLAHOMA CITY OK 73142 1 1 1 0 See Remarks Common Stock 2016-08-01 4 F 0 32865 47.82 D 3935150 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 70,000 restricted shares of common stock granted to Mr. Richison on July 8, 2015. No shares were issued or sold in this transaction. Includes 401,239 restricted shares of common stock. Represents shares of common stock owned by Ernest Group, Inc. ("Ernest Group"). Mr. Richison is the sole director of Ernest Group and Ernest Group is wholly owned by Mr. Richison and certain trusts for Mr. Richison's children, for which Mr. Richison serves as trustee. Mr. Richison may be deemed to beneficially own the shares of common stock owned by Ernest Group. Mr. Richison 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 Mr. Richison 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"). Mr. Richison 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. President and Chief Executive Officer /s/ Chad R. Richison 2016-08-03