PAYC

SEC source: 0000950170-25-086922 · ownership.xml · nonDerivative · entry 7

Smith Bradley Scott · CIK 0001738164 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Indirect · By Bradley Scott Smith Revocable Trust, dated October 30, 2017

Disclosed balance after: 27,233

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Bradley Scott Smith Revocable Trust, dated October 30, 2017 (the "Bradley Scott Smith Revocable Trust"), on December 12, 2024.

F3 · ownership.nature: The Bradley Scott Smith Revocable Trust is a revocable trust for the benefit of the reporting person, his spouse, and his children. The reporting person is the trustor and, with his spouse, a co-trustee of the Bradley Scott Smith Revocable Trust. Accordingly, the reporting person reports beneficial ownership of all of the shares of common stock held by the Bradley Scott Smith Revocable Trust but disclaims beneficial ownership except to the extent of his and his spouse's pecuniary interest therein.

SEC source: 0000950170-25-086922 · ownership.xml · nonDerivative · entry 6

Smith Bradley Scott · CIK 0001738164 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Indirect · By Bradley Scott Smith Revocable Trust, dated October 30, 2017

Disclosed balance after: 27,252

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Bradley Scott Smith Revocable Trust, dated October 30, 2017 (the "Bradley Scott Smith Revocable Trust"), on December 12, 2024.

F3 · ownership.nature: The Bradley Scott Smith Revocable Trust is a revocable trust for the benefit of the reporting person, his spouse, and his children. The reporting person is the trustor and, with his spouse, a co-trustee of the Bradley Scott Smith Revocable Trust. Accordingly, the reporting person reports beneficial ownership of all of the shares of common stock held by the Bradley Scott Smith Revocable Trust but disclaims beneficial ownership except to the extent of his and his spouse's pecuniary interest therein.

SEC source: 0000950170-25-086922 · ownership.xml · nonDerivative · entry 5

Smith Bradley Scott · CIK 0001738164 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Indirect · By Bradley Scott Smith Revocable Trust, dated October 30, 2017

Disclosed balance after: 27,271

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Bradley Scott Smith Revocable Trust, dated October 30, 2017 (the "Bradley Scott Smith Revocable Trust"), on December 12, 2024.

F7 · price: The price reported is a weighted average price. These shares of common stock were sold in multiple transactions at prices ranging from $250.51 to $251.10, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of shares sold in the transactions at each separate price within the range set forth in this footnote.

F3 · ownership.nature: The Bradley Scott Smith Revocable Trust is a revocable trust for the benefit of the reporting person, his spouse, and his children. The reporting person is the trustor and, with his spouse, a co-trustee of the Bradley Scott Smith Revocable Trust. Accordingly, the reporting person reports beneficial ownership of all of the shares of common stock held by the Bradley Scott Smith Revocable Trust but disclaims beneficial ownership except to the extent of his and his spouse's pecuniary interest therein.

SEC source: 0000950170-25-086922 · ownership.xml · nonDerivative · entry 4

Smith Bradley Scott · CIK 0001738164 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Indirect · By Bradley Scott Smith Revocable Trust, dated October 30, 2017

Disclosed balance after: 27,560

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Bradley Scott Smith Revocable Trust, dated October 30, 2017 (the "Bradley Scott Smith Revocable Trust"), on December 12, 2024.

F6 · price: The price reported is a weighted average price. These shares of common stock were sold in multiple transactions at prices ranging from $249.51 to $250.50, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of shares sold in the transactions at each separate price within the range set forth in this footnote.

F3 · ownership.nature: The Bradley Scott Smith Revocable Trust is a revocable trust for the benefit of the reporting person, his spouse, and his children. The reporting person is the trustor and, with his spouse, a co-trustee of the Bradley Scott Smith Revocable Trust. Accordingly, the reporting person reports beneficial ownership of all of the shares of common stock held by the Bradley Scott Smith Revocable Trust but disclaims beneficial ownership except to the extent of his and his spouse's pecuniary interest therein.

SEC source: 0000950170-25-086922 · ownership.xml · nonDerivative · entry 3

Smith Bradley Scott · CIK 0001738164 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Indirect · By Bradley Scott Smith Revocable Trust, dated October 30, 2017

Disclosed balance after: 28,440

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Bradley Scott Smith Revocable Trust, dated October 30, 2017 (the "Bradley Scott Smith Revocable Trust"), on December 12, 2024.

F5 · price: The price reported is a weighted average price. These shares of common stock were sold in multiple transactions at prices ranging from $248.52 to $249.50, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of shares sold in the transactions at each separate price within the range set forth in this footnote.

F3 · ownership.nature: The Bradley Scott Smith Revocable Trust is a revocable trust for the benefit of the reporting person, his spouse, and his children. The reporting person is the trustor and, with his spouse, a co-trustee of the Bradley Scott Smith Revocable Trust. Accordingly, the reporting person reports beneficial ownership of all of the shares of common stock held by the Bradley Scott Smith Revocable Trust but disclaims beneficial ownership except to the extent of his and his spouse's pecuniary interest therein.

SEC source: 0000950170-25-086922 · ownership.xml · nonDerivative · entry 2

Smith Bradley Scott · CIK 0001738164 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Indirect · By Bradley Scott Smith Revocable Trust, dated October 30, 2017

Disclosed balance after: 28,571

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Bradley Scott Smith Revocable Trust, dated October 30, 2017 (the "Bradley Scott Smith Revocable Trust"), on December 12, 2024.

F4 · price: The price reported is a weighted average price. These shares of common stock were sold in multiple transactions at prices ranging from $247.65 to $248.34, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of shares sold in the transactions at each separate price within the range set forth in this footnote.

F3 · ownership.nature: The Bradley Scott Smith Revocable Trust is a revocable trust for the benefit of the reporting person, his spouse, and his children. The reporting person is the trustor and, with his spouse, a co-trustee of the Bradley Scott Smith Revocable Trust. Accordingly, the reporting person reports beneficial ownership of all of the shares of common stock held by the Bradley Scott Smith Revocable Trust but disclaims beneficial ownership except to the extent of his and his spouse's pecuniary interest therein.

SEC source: 0000950170-25-086922 · ownership.xml · nonDerivative · entry 1

Smith Bradley Scott · CIK 0001738164 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Indirect · By Bradley Scott Smith Revocable Trust, dated October 30, 2017

Disclosed balance after: 28,668

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Bradley Scott Smith Revocable Trust, dated October 30, 2017 (the "Bradley Scott Smith Revocable Trust"), on December 12, 2024.

F2 · price: The price reported is a weighted average price. These shares of common stock were sold in multiple transactions at prices ranging from $246.50 to $247.48, 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 (the "SEC"), upon request, full information regarding the number of shares sold in the transactions at each separate price within the range set forth in this footnote.

F3 · ownership.nature: The Bradley Scott Smith Revocable Trust is a revocable trust for the benefit of the reporting person, his spouse, and his children. The reporting person is the trustor and, with his spouse, a co-trustee of the Bradley Scott Smith Revocable Trust. Accordingly, the reporting person reports beneficial ownership of all of the shares of common stock held by the Bradley Scott Smith Revocable Trust but disclaims beneficial ownership except to the extent of his and his spouse's pecuniary interest therein.

SEC source: 0000950170-25-083034 · ownership.xml · nonDerivative · entry 3

Richison Chad R. · CIK 0001594487 · Director · CEO, President and Chairman · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Ernest Group, Inc.

Disclosed balance after: 3,217,249

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Ernest Group, Inc. ("Ernest Group") on December 12, 2024.

F3 · ownership.nature: Represents shares of common stock owned by 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.

SEC source: 0000950170-25-083034 · ownership.xml · nonDerivative · entry 2

Richison Chad R. · CIK 0001594487 · Director · CEO, President and Chairman · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Ernest Group, Inc.

Disclosed balance after: 3,217,349

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Ernest Group, Inc. ("Ernest Group") on December 12, 2024.

F4 · price: The price reported is a weighted average price. These shares of common stock were sold in multiple transactions at prices ranging from $265.00 to $265.88, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of shares sold in the transactions at each separate price within the range set forth in this footnote.

F3 · ownership.nature: Represents shares of common stock owned by 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.

SEC source: 0000950170-25-081731 · ownership.xml · nonDerivative · entry 2

Peck Randall · CIK 0002025321 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,394

F2 · balance_after: Includes 32,816 unvested shares of restricted stock and 11,886 unvested restricted stock units.

SEC source: 0000950170-25-083034 · ownership.xml · nonDerivative · entry 1

Richison Chad R. · CIK 0001594487 · Director · CEO, President and Chairman · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Ernest Group, Inc.

Disclosed balance after: 3,224,049

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Ernest Group, Inc. ("Ernest Group") on December 12, 2024.

F2 · price: The price reported is a weighted average price. These shares of common stock were sold in multiple transactions at prices ranging from $265.00 to $265.61, 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 (the "SEC"), upon request, full information regarding the number of shares sold in the transactions at each separate price within the range set forth in this footnote.

F3 · ownership.nature: Represents shares of common stock owned by 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.

SEC source: 0000950170-25-081731 · ownership.xml · nonDerivative · entry 1

Peck Randall · CIK 0002025321 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,284

F1 · shares: 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 an award of 97 shares of restricted stock granted to the reporting person on February 23, 2024. No shares were sold in this transaction.

F2 · balance_after: Includes 32,816 unvested shares of restricted stock and 11,886 unvested restricted stock units.

SEC source: 0000950170-25-071509 · ownership.xml · nonDerivative · entry 6

Richison Chad R. · CIK 0001594487 · Director · CEO, President and Chairman · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Ernest Group, Inc.

Disclosed balance after: 3,247,249

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Ernest Group, Inc. ("Ernest Group") on December 12, 2024.

F8 · price: The price reported is a weighted average price. These shares of common stock were sold in multiple transactions at prices ranging from $261.00 to $261.54, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of shares sold in the transactions at each separate price within the range set forth in this footnote.

F3 · ownership.nature: Represents shares of common stock owned by 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.

SEC source: 0000950170-25-071509 · ownership.xml · nonDerivative · entry 5

Richison Chad R. · CIK 0001594487 · Director · CEO, President and Chairman · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Ernest Group, Inc.

Disclosed balance after: 3,254,780

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Ernest Group, Inc. ("Ernest Group") on December 12, 2024.

F7 · price: The price reported is a weighted average price. These shares of common stock were sold in multiple transactions at prices ranging from $260.00 to $260.99, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of shares sold in the transactions at each separate price within the range set forth in this footnote.

F3 · ownership.nature: Represents shares of common stock owned by 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.

SEC source: 0000950170-25-071509 · ownership.xml · nonDerivative · entry 4

Richison Chad R. · CIK 0001594487 · Director · CEO, President and Chairman · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Ernest Group, Inc.

Disclosed balance after: 3,277,249

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Ernest Group, Inc. ("Ernest Group") on December 12, 2024.

F6 · price: The price reported is a weighted average price. These shares of common stock were sold in multiple transactions at prices ranging from $258.35 to $259.01, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of shares sold in the transactions at each separate price within the range set forth in this footnote.

F3 · ownership.nature: Represents shares of common stock owned by 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.

SEC source: 0000950170-25-071509 · ownership.xml · nonDerivative · entry 3

Richison Chad R. · CIK 0001594487 · Director · CEO, President and Chairman · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Ernest Group, Inc.

Disclosed balance after: 3,278,087

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Ernest Group, Inc. ("Ernest Group") on December 12, 2024.

F5 · price: The price reported is a weighted average price. These shares of common stock were sold in multiple transactions at prices ranging from $257.36 to $257.97, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of shares sold in the transactions at each separate price within the range set forth in this footnote.

F3 · ownership.nature: Represents shares of common stock owned by 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.

SEC source: 0000950170-25-071509 · ownership.xml · nonDerivative · entry 2

Richison Chad R. · CIK 0001594487 · Director · CEO, President and Chairman · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Ernest Group, Inc.

Disclosed balance after: 3,279,175

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Ernest Group, Inc. ("Ernest Group") on December 12, 2024.

F4 · price: The price reported is a weighted average price. These shares of common stock were sold in multiple transactions at prices ranging from $256.00 to $256.83, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of shares sold in the transactions at each separate price within the range set forth in this footnote.

F3 · ownership.nature: Represents shares of common stock owned by 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.

SEC source: 0000950170-25-071509 · ownership.xml · nonDerivative · entry 1

Richison Chad R. · CIK 0001594487 · Director · CEO, President and Chairman · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Ernest Group, Inc.

Disclosed balance after: 3,280,725

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Ernest Group, Inc. ("Ernest Group") on December 12, 2024.

F2 · price: The price reported is a weighted average price. These shares of common stock were sold in multiple transactions at prices ranging from $255.00 to $255.91, 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 (the "SEC"), upon request, full information regarding the number of shares sold in the transactions at each separate price within the range set forth in this footnote.

F3 · ownership.nature: Represents shares of common stock owned by 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.

SEC source: 0000950170-25-070632 · ownership.xml · nonDerivative · entry 1

Peck Randall · CIK 0002025321 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,327

F1 · shares: 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 the following awards: (i) 42 shares of restricted stock granted to the reporting person on April 30, 2023; (ii) 625 shares of restricted stock granted to the reporting person on December 28, 2023; and (iii) 97 shares of restricted stock granted to the reporting person on February 23, 2024. No shares were issued or sold in this transaction.

F2 · balance_after: Includes 32,913 unvested shares of restricted stock and 11,886 unvested restricted stock units.

SEC source: 0000950170-25-070638 · ownership.xml · nonDerivative · entry 1

Vickroy Amy · CIK 0002018276 · Chief Sales Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,913

F1 · shares: 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 the following awards: (i) 471 shares of restricted stock granted to the reporting person on February 5, 2021; and (ii) 395 shares of restricted stock granted to the reporting person on February 2, 2022. No shares were issued or sold in this transaction.

F2 · balance_after: Includes 6,106 unvested shares of restricted stock and 8,390 unvested restricted stock units.

SEC source: 0000950170-25-069149 · ownership.xml · nonDerivative · entry 1

Richison Chad R. · CIK 0001594487 · Director · CEO, President and Chairman · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Ernest Group, Inc.

Disclosed balance after: 3,303,675

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Ernest Group, Inc. ("Ernest Group") on December 12, 2024.

F2 · price: The price reported is a weighted average price. These shares of common stock were sold in multiple transactions at prices ranging from $255.00 to $255.11, 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 in the transactions at each separate price within the range set forth in this footnote.

F3 · ownership.nature: Represents shares of common stock owned by 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.

SEC source: 0000950170-25-068042 · ownership.xml · nonDerivative · entry 12

Richison Chad R. · CIK 0001594487 · Director · CEO, President and Chairman · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Ernest Group, Inc.

Disclosed balance after: 3,307,249

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Ernest Group, Inc. ("Ernest Group") on December 12, 2024.

F14 · price: The price reported is a weighted average price. These shares of common stock were sold in multiple transactions at prices ranging from $250.00 to $250.82, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of shares sold in the transactions at each separate price within the range set forth in this footnote.

F3 · ownership.nature: Represents shares of common stock owned by 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.

SEC source: 0000950170-25-068042 · ownership.xml · nonDerivative · entry 11

Richison Chad R. · CIK 0001594487 · Director · CEO, President and Chairman · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Ernest Group, Inc.

Disclosed balance after: 3,337,249

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Ernest Group, Inc. ("Ernest Group") on December 12, 2024.

F13 · price: The price reported is a weighted average price. These shares of common stock were sold in multiple transactions at prices ranging from $246.02 to $246.58, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of shares sold in the transactions at each separate price within the range set forth in this footnote.

F3 · ownership.nature: Represents shares of common stock owned by 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.

SEC source: 0000950170-25-068042 · ownership.xml · nonDerivative · entry 10

Richison Chad R. · CIK 0001594487 · Director · CEO, President and Chairman · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Ernest Group, Inc.

Disclosed balance after: 3,337,811

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Ernest Group, Inc. ("Ernest Group") on December 12, 2024.

F12 · price: The price reported is a weighted average price. These shares of common stock were sold in multiple transactions at prices ranging from $245.00 to $245.87, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of shares sold in the transactions at each separate price within the range set forth in this footnote.

F3 · ownership.nature: Represents shares of common stock owned by 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.

SEC source: 0000950170-25-068042 · ownership.xml · nonDerivative · entry 9

Richison Chad R. · CIK 0001594487 · Director · CEO, President and Chairman · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Ernest Group, Inc.

Disclosed balance after: 3,367,449

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Ernest Group, Inc. ("Ernest Group") on December 12, 2024.

F11 · price: The price reported is a weighted average price. These shares of common stock were sold in multiple transactions at prices ranging from $243.53 to $244.03, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of shares sold in the transactions at each separate price within the range set forth in this footnote.

F3 · ownership.nature: Represents shares of common stock owned by 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.

SEC source: 0000950170-25-068042 · ownership.xml · nonDerivative · entry 8

Richison Chad R. · CIK 0001594487 · Director · CEO, President and Chairman · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Ernest Group, Inc.

Disclosed balance after: 3,368,231

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Ernest Group, Inc. ("Ernest Group") on December 12, 2024.

F10 · price: The price reported is a weighted average price. These shares of common stock were sold in multiple transactions at prices ranging from $242.53 to $243.52, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of shares sold in the transactions at each separate price within the range set forth in this footnote.

F3 · ownership.nature: Represents shares of common stock owned by 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.

SEC source: 0000950170-25-068042 · ownership.xml · nonDerivative · entry 7

Richison Chad R. · CIK 0001594487 · Director · CEO, President and Chairman · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Ernest Group, Inc.

Disclosed balance after: 3,368,672

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Ernest Group, Inc. ("Ernest Group") on December 12, 2024.

F9 · price: The price reported is a weighted average price. These shares of common stock were sold in multiple transactions at prices ranging from $241.52 to $242.46, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of shares sold in the transactions at each separate price within the range set forth in this footnote.

F3 · ownership.nature: Represents shares of common stock owned by 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.

SEC source: 0000950170-25-068042 · ownership.xml · nonDerivative · entry 6

Richison Chad R. · CIK 0001594487 · Director · CEO, President and Chairman · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Ernest Group, Inc.

Disclosed balance after: 3,381,221

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Ernest Group, Inc. ("Ernest Group") on December 12, 2024.

F8 · price: The price reported is a weighted average price. These shares of common stock were sold in multiple transactions at prices ranging from $240.42 to $241.24, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of shares sold in the transactions at each separate price within the range set forth in this footnote.

F3 · ownership.nature: Represents shares of common stock owned by 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.

SEC source: 0000950170-25-068042 · ownership.xml · nonDerivative · entry 5

Richison Chad R. · CIK 0001594487 · Director · CEO, President and Chairman · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Ernest Group, Inc.

Disclosed balance after: 3,398,030

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Ernest Group, Inc. ("Ernest Group") on December 12, 2024.

F7 · price: The price reported is a weighted average price. These shares of common stock were sold in multiple transactions at prices ranging from $239.00 to $239.52, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of shares sold in the transactions at each separate price within the range set forth in this footnote.

F3 · ownership.nature: Represents shares of common stock owned by 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.

SEC source: 0000950170-25-068042 · ownership.xml · nonDerivative · entry 4

Richison Chad R. · CIK 0001594487 · Director · CEO, President and Chairman · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Ernest Group, Inc.

Disclosed balance after: 3,399,617

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Ernest Group, Inc. ("Ernest Group") on December 12, 2024.

F6 · price: The price reported is a weighted average price. These shares of common stock were sold in multiple transactions at prices ranging from $238.00 to $238.94, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of shares sold in the transactions at each separate price within the range set forth in this footnote.

F3 · ownership.nature: Represents shares of common stock owned by 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.

SEC source: 0000950170-25-068042 · ownership.xml · nonDerivative · entry 3

Richison Chad R. · CIK 0001594487 · Director · CEO, President and Chairman · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Ernest Group, Inc.

Disclosed balance after: 3,408,281

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Ernest Group, Inc. ("Ernest Group") on December 12, 2024.

F5 · price: The price reported is a weighted average price. These shares of common stock were sold in multiple transactions at prices ranging from $237.00 to $237.98, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of shares sold in the transactions at each separate price within the range set forth in this footnote.

F3 · ownership.nature: Represents shares of common stock owned by 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.

SEC source: 0000950170-25-068042 · ownership.xml · nonDerivative · entry 2

Richison Chad R. · CIK 0001594487 · Director · CEO, President and Chairman · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Ernest Group, Inc.

Disclosed balance after: 3,416,013

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Ernest Group, Inc. ("Ernest Group") on December 12, 2024.

F4 · price: The price reported is a weighted average price. These shares of common stock were sold in multiple transactions at prices ranging from $236.00 to $236.95, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of shares sold in the transactions at each separate price within the range set forth in this footnote.

F3 · ownership.nature: Represents shares of common stock owned by 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.

SEC source: 0000950170-25-068042 · ownership.xml · nonDerivative · entry 1

Richison Chad R. · CIK 0001594487 · Director · CEO, President and Chairman · 10% owner

10b5-1 filing: Plan reported

Ownership: Indirect · By Ernest Group, Inc.

Disclosed balance after: 3,422,857

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Ernest Group, Inc. ("Ernest Group") on December 12, 2024.

F2 · price: The price reported is a weighted average price. These shares of common stock were sold in multiple transactions at prices ranging from $235.00 to $235.98, 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 (the "SEC"), upon request, full information regarding the number of shares sold in the transactions at each separate price within the range set forth in this footnote.

F3 · ownership.nature: Represents shares of common stock owned by 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.

SEC source: 0000950170-25-065776 · ownership.xml · nonDerivative · entry 1

Vemulapalli Archana · CIK 0002030451 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,809

F1 · shares: Represents shares of restricted stock granted to the reporting person under the Paycom Software, Inc. 2023 Long-Term Incentive Plan.

F2 · balance_after: Includes 1,809 unvested shares of restricted stock.

SEC source: 0000950170-25-065773 · ownership.xml · nonDerivative · entry 1

PETERS FREDERICK C II · CIK 0001227984 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,882

F1 · shares: Represents shares of restricted stock granted to the reporting person under the Paycom Software, Inc. 2023 Long-Term Incentive Plan.

F2 · balance_after: Includes 2,315 unvested shares of restricted stock.

SEC source: 0000950170-25-065747 · ownership.xml · nonDerivative · entry 1

DUQUES HENRY C · CIK 0001185120 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,084

F1 · shares: Represents shares of restricted stock granted to the reporting person under the Paycom Software, Inc. 2023 Long-Term Incentive Plan.

F2 · balance_after: Includes 2,315 unvested shares of restricted stock.

SEC source: 0000950170-25-065775 · ownership.xml · nonDerivative · entry 1

WATTS J C JR · CIK 0001213577 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,829

F1 · shares: Represents shares of restricted stock granted to the reporting person under the Paycom Software, Inc. 2023 Long-Term Incentive Plan.

F2 · balance_after: Includes 2,315 unvested shares of restricted stock.

SEC source: 0000950170-25-065778 · ownership.xml · nonDerivative · entry 1

TURNEY SHAREN J · CIK 0001363500 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,102

F1 · shares: Represents shares of restricted stock granted to the reporting person under the Paycom Software, Inc. 2023 Long-Term Incentive Plan.

F2 · balance_after: Includes 2,315 unvested shares of restricted stock.

SEC source: 0000950170-25-065782 · ownership.xml · nonDerivative · entry 1

Williams Felicia · CIK 0001675737 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,706

F1 · shares: Represents shares of restricted stock granted to the reporting person under the Paycom Software, Inc. 2023 Long-Term Incentive Plan.

F2 · balance_after: Includes 2,315 unvested shares of restricted stock.

SEC source: 0000950170-25-065777 · ownership.xml · nonDerivative · entry 1

BINZ JOSEPH LEO · CIK 0001946413 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,946

F1 · shares: Represents shares of restricted stock granted to the reporting person under the Paycom Software, Inc. 2023 Long-Term Incentive Plan.

F2 · balance_after: Includes 1,348 unvested shares of restricted stock.

SEC source: 0000950170-25-060412 · ownership.xml · nonDerivative · entry 1

Vickroy Amy · CIK 0002018276 · Chief Sales Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,255

F1 · shares: 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 the following awards: (i) 284 shares of restricted stock granted to the reporting person on April 30, 2023; and (ii) 494 shares of restricted stock granted to the reporting person on May 6, 2024. No shares were issued or sold in this transaction.

F2 · balance_after: Includes 6,972 unvested shares of restricted stock and 8,390 unvested restricted stock units.

SEC source: 0000950170-25-040456 · ownership.xml · nonDerivative · entry 4

Smith Bradley Scott · CIK 0001738164 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Indirect · By Bradley Scott Smith Revocable Trust, dated October 30, 2017

Disclosed balance after: 28,733

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Bradley Scott Smith Revocable Trust, dated October 30, 2017 (the "Bradley Scott Smith Revocable Trust"), on December 12, 2024.

F3 · ownership.nature: The Bradley Scott Smith Revocable Trust is a revocable trust for the benefit of the reporting person, his spouse, and his children. The reporting person is the trustor and, with his spouse, a co-trustee of the Bradley Scott Smith Revocable Trust. Accordingly, the reporting person reports beneficial ownership of all of the shares of common stock held by the Bradley Scott Smith Revocable Trust but disclaims beneficial ownership except to the extent of his and his spouse's pecuniary interest therein.

SEC source: 0000950170-25-040456 · ownership.xml · nonDerivative · entry 3

Smith Bradley Scott · CIK 0001738164 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Indirect · By Bradley Scott Smith Revocable Trust, dated October 30, 2017

Disclosed balance after: 28,833

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Bradley Scott Smith Revocable Trust, dated October 30, 2017 (the "Bradley Scott Smith Revocable Trust"), on December 12, 2024.

F5 · price: The price reported is a weighted average price. These shares of common stock were sold in multiple transactions at prices ranging from $202.05 to $202.37, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of shares sold in the transactions at each separate price within the range set forth in this footnote.

F3 · ownership.nature: The Bradley Scott Smith Revocable Trust is a revocable trust for the benefit of the reporting person, his spouse, and his children. The reporting person is the trustor and, with his spouse, a co-trustee of the Bradley Scott Smith Revocable Trust. Accordingly, the reporting person reports beneficial ownership of all of the shares of common stock held by the Bradley Scott Smith Revocable Trust but disclaims beneficial ownership except to the extent of his and his spouse's pecuniary interest therein.

SEC source: 0000950170-25-040456 · ownership.xml · nonDerivative · entry 2

Smith Bradley Scott · CIK 0001738164 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Indirect · By Bradley Scott Smith Revocable Trust, dated October 30, 2017

Disclosed balance after: 29,087

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Bradley Scott Smith Revocable Trust, dated October 30, 2017 (the "Bradley Scott Smith Revocable Trust"), on December 12, 2024.

F4 · price: The price reported is a weighted average price. These shares of common stock were sold in multiple transactions at prices ranging from $201.04 to $202.00, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the SEC, upon request, full information regarding the number of shares sold in the transactions at each separate price within the range set forth in this footnote.

F3 · ownership.nature: The Bradley Scott Smith Revocable Trust is a revocable trust for the benefit of the reporting person, his spouse, and his children. The reporting person is the trustor and, with his spouse, a co-trustee of the Bradley Scott Smith Revocable Trust. Accordingly, the reporting person reports beneficial ownership of all of the shares of common stock held by the Bradley Scott Smith Revocable Trust but disclaims beneficial ownership except to the extent of his and his spouse's pecuniary interest therein.

SEC source: 0000950170-25-040456 · ownership.xml · nonDerivative · entry 1

Smith Bradley Scott · CIK 0001738164 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Indirect · By Bradley Scott Smith Revocable Trust, dated October 30, 2017

Disclosed balance after: 29,934

F1 · kind: The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Bradley Scott Smith Revocable Trust, dated October 30, 2017 (the "Bradley Scott Smith Revocable Trust"), on December 12, 2024.

F2 · price: The price reported is a weighted average price. These shares of common stock were sold in multiple transactions at prices ranging from $200.06 to $201.00, 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 (the "SEC"), upon request, full information regarding the number of shares sold in the transactions at each separate price within the range set forth in this footnote.

F3 · ownership.nature: The Bradley Scott Smith Revocable Trust is a revocable trust for the benefit of the reporting person, his spouse, and his children. The reporting person is the trustor and, with his spouse, a co-trustee of the Bradley Scott Smith Revocable Trust. Accordingly, the reporting person reports beneficial ownership of all of the shares of common stock held by the Bradley Scott Smith Revocable Trust but disclaims beneficial ownership except to the extent of his and his spouse's pecuniary interest therein.

SEC source: 0000950170-25-029336 · ownership.xml · nonDerivative · entry 1

Vickroy Amy · CIK 0002018276 · EVP of Sales

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,562

F1 · shares: 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 an award of 1,666 shares of restricted stock granted to the reporting person on December 20, 2023. No shares were sold in this transaction.

F2 · balance_after: Includes 7,750 unvested shares of restricted stock and 8,390 unvested restricted stock units.

SEC source: 0000950170-25-027978 · ownership.xml · nonDerivative · entry 1

WATTS J C JR · CIK 0001213577 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,730

F1 · balance_after: Includes 1,216 unvested shares of restricted stock.

SEC source: 0000950170-25-026990 · ownership.xml · nonDerivative · entry 1

Foster Robert D. · CIK 0002056628 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,139

F1 · shares: Represents restricted stock units granted under the Paycom Software, Inc. 2023 Long-Term Incentive Plan.

F2 · balance_after: Includes 9,589 unvested restricted stock units and 7,500 unvested shares of restricted stock.

SEC source: 0000950170-25-026994 · ownership.xml · nonDerivative · entry 2

Peck Randall · CIK 0002025321 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,665

F2 · balance_after: Includes 33,677 unvested shares of restricted stock and 11,886 unvested restricted stock units.

SEC source: 0000950170-25-026994 · ownership.xml · nonDerivative · entry 1

Peck Randall · CIK 0002025321 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 54,265

F1 · shares: Represents restricted stock units granted under the Paycom Software, Inc. 2023 Long-Term Incentive Plan.

F2 · balance_after: Includes 33,677 unvested shares of restricted stock and 11,886 unvested restricted stock units.