144 0002082976 XXXXXXXX LIVE 0001590955 Paycom Software, Inc. 001-36393 7501 W. Memorial Road Oklahoma City OK 73142 (405)-722-6900 Hadlock Terrell Shane Officer Common Stock Morgan Stanley Co.

1585 BROADWAY New York NY 10036

2818 667979 45071619 08/27/2026 NYSE Common Stock 04/15/2016 Compensation Paycom Software, Inc. N 4000 04/15/2016 Compensation Common Stock 10/04/2016 Compensation Paycom Software, Inc. N 4000 10/04/2016 Compensation Common Stock 01/26/2018 Compensation Paycom Software, Inc. N 1900 01/26/2018 Compensation Common Stock 01/17/2019 Compensation Paycom Software, Inc. N 2880 01/17/2019 Compensation Common Stock 01/30/2020 Compensation Paycom Software, Inc. N 1312 01/30/2020 Compensation Common Stock 11/10/2020 Compensation Paycom Software, Inc. N 50 11/10/2020 Compensation Common Stock 02/05/2021 Compensation Paycom Software, Inc. N 652 02/05/2021 Compensation Common Stock 02/02/2022 Compensation Paycom Software, Inc. N 700 02/02/2022 Compensation Common Stock 05/18/2023 Compensation Paycom Software, Inc. N 5 05/18/2023 Compensation Common Stock 08/18/2023 Compensation Paycom Software, Inc. N 13 08/18/2023 Compensation Common Stock 11/20/2023 Compensation Paycom Software, Inc. N 14 11/20/2023 Compensation Common Stock 03/20/2024 Compensation Paycom Software, Inc. N 24 03/20/2024 Compensation Common Stock 11/18/2015 Compensation Paycom Software, Inc. N 22 11/18/2015 Compensation Common Stock 03/20/2017 Compensation Paycom Software, Inc. N 25 03/20/2017 Compensation Common Stock 08/18/2017 Compensation Paycom Software, Inc. N 17 08/18/2017 Compensation Common Stock 11/17/2017 Compensation Paycom Software, Inc. N 14 11/17/2017 Compensation Common Stock 03/19/2018 Compensation Paycom Software, Inc. N 13 03/19/2018 Compensation Common Stock 05/18/2018 Compensation Paycom Software, Inc. N 7 05/18/2018 Compensation Common Stock 08/17/2018 Compensation Paycom Software, Inc. N 11 08/17/2018 Compensation Common Stock 11/20/2018 Compensation Paycom Software, Inc. N 12 11/20/2018 Compensation Common Stock 03/20/2019 Compensation Paycom Software, Inc. N 12 03/20/2019 Compensation Common Stock 05/20/2019 Compensation Paycom Software, Inc. N 4 05/20/2019 Compensation Common Stock 03/18/2020 Compensation Paycom Software, Inc. N 12 03/18/2020 Compensation Common Stock 11/18/2020 Compensation Paycom Software, Inc. N 8 11/18/2020 Compensation Common Stock 03/18/2021 Compensation Paycom Software, Inc. N 8 03/18/2021 Compensation Common Stock 05/19/2021 Compensation Paycom Software, Inc. N 6 05/19/2021 Compensation Common Stock 08/18/2021 Compensation Paycom Software, Inc. N 5 08/18/2021 Compensation Common Stock 11/18/2021 Compensation Paycom Software, Inc. N 5 11/18/2021 Compensation Common Stock 03/18/2022 Compensation Paycom Software, Inc. N 10 03/18/2022 Compensation Common Stock 08/18/2022 Compensation Paycom Software, Inc. N 7 08/18/2022 Compensation Common Stock 11/18/2022 Compensation Paycom Software, Inc. N 9 11/18/2022 Compensation Common Stock 05/20/2024 Compensation Paycom Software, Inc. N 9 05/20/2024 Compensation Common Stock 08/20/2024 Compensation Paycom Software, Inc. N 25 08/20/2024 Compensation Y 08/28/2026 /s/ Terrell Shane Hadlock