X0306 4 2018-08-01 0 0001590955 Paycom Software, Inc. PAYC 0001737656 Evans Jon 7501 W. MEMORIAL ROAD OKLAHOMA CITY OK 73142 0 1 0 0 Chief Operating Officer Common Stock 2018-08-01 4 S 0 2768 118.3642 D 29665 D The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on June 14, 2018. The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $118.02 to $118.63, inclusive. The reporting person undertakes to provide to Paycom Software, Inc. (the "Issuer"), any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Includes 27,192 unvested shares of restricted stock. /s/ Jon D. Evans 2018-08-02