Hersman Deborah

SEC source: 0001778660-26-000004 · form4-06062026_120601.xml · nonDerivative · entry 1

Hersman Deborah · CIK 0001778660 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,295

F1 · shares: These securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Class A Common Stock. One-fourth of the RSUs shall vest on each of August 20, 2026, November 20, 2026, February 20, 2027, and the earlier of May 20, 2027 or the day prior to the date of the Issuer's 2027 annual meeting of stockholders, subject to the Reporting Person continuing as a service provider through each such date. Vested RSUs will be delivered to the Reporting Person on the earlier of (i) immediately prior to a change in control of the Issuer or (ii) within 60 days following the Reporting Person's retirement or separation from service with the Issuer and all of its affiliates.

F2 · balance_after: Certain of these securities are RSUs. Each RSU represents a contingent right to receive one share of Class A Common Stock, subject to the applicable vesting schedule and conditions of each RSU.

SEC source: 0001193125-26-239326 · ownership.xml · derivative · entry 1

Hersman Deborah · CIK 0001778660 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,533

Underlying: Common stock, par value $0.01 · 1,700 shares

Expires not disclosed

F1 · derivative.exercise_price: Shares of deferred stock are convertible into ONE Gas' common stock on a 1-for-1 ratio.

F2 · kind: Annual stock retainer elected to be deferred under ONE Gas' Deferred Compensation Plan for Non-Employee Directors.

F3 · derivative.exercise_date: Deferred stock is accrued under ONE Gas' Deferred Compensation Plan for Non-Employee Directors (the "Plan") and is settled in shares of ONE Gas common stock at the distribution date described in the Plan.

F3 · derivative.expiration_date: Deferred stock is accrued under ONE Gas' Deferred Compensation Plan for Non-Employee Directors (the "Plan") and is settled in shares of ONE Gas common stock at the distribution date described in the Plan.

SEC source: 0001111711-26-000057 · form4.xml · nonDerivative · entry 1

Hersman Deborah · CIK 0001778660 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,199.674

F1 · shares: Represents an award of restricted stock units ("RSU") granted as part of the non-employee director's annual compensation and which vests in full on the first anniversary of the grant date, subject to certain acceleration conditions. RSUs represent a contingent right to receive one share of the Company's common stock upon vesting pursuant to the Company's 2020 Omnibus Plan.

F2 · balance_after: This amount includes RSUs received pursuant to the dividend equivalent provisions of the RSU awards, and which are subject to the same vesting conditions as the underlying RSUs.

SEC source: 0001778660-26-000003 · form4-01272026_100108.xml · nonDerivative · entry 1

Hersman Deborah · CIK 0001778660 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,842

F1 · shares: These securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Class A Common Stock. 100% of the RSUs shall vest on the earlier of May 20, 2026 or the day prior to the date of the Issuer's 2026 annual meeting of stockholders, subject to the Reporting Person continuing as a service provider through such date. Vested RSUs will be delivered to the Reporting Person on the earlier of (i) immediately prior to a change in control of the Issuer or (ii) within 60 days following the Reporting Person's retirement or separation from service with the Issuer and all of its affiliates.

F1 · balance_after: These securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Class A Common Stock. 100% of the RSUs shall vest on the earlier of May 20, 2026 or the day prior to the date of the Issuer's 2026 annual meeting of stockholders, subject to the Reporting Person continuing as a service provider through such date. Vested RSUs will be delivered to the Reporting Person on the earlier of (i) immediately prior to a change in control of the Issuer or (ii) within 60 days following the Reporting Person's retirement or separation from service with the Issuer and all of its affiliates.

SEC source: 0000950170-25-077702 · ownership.xml · derivative · entry 1

Hersman Deborah · CIK 0001778660 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,658

Underlying: Common stock, par value $0.01 · 1,905 shares

Expires not disclosed

F1 · derivative.exercise_price: Shares of phantom stock are convertible into ONE Gas' common stock on a 1-for-1 ratio.

F2 · kind: Annual stock retainer elected to be deferred to phantom stock under ONE Gas' Deferred Compensation Plan for Non-Employee Directors.

F3 · derivative.exercise_date: Phantom stock is accrued under ONE Gas' Deferred Compensation Plan for Non-Employee Directors (the "Plan") and is settled in shares of ONE Gas common stock at the distribution date described in the Plan.

F3 · derivative.expiration_date: Phantom stock is accrued under ONE Gas' Deferred Compensation Plan for Non-Employee Directors (the "Plan") and is settled in shares of ONE Gas common stock at the distribution date described in the Plan.

SEC source: 0001127602-25-014311 · form4.xml · nonDerivative · entry 1

Hersman Deborah · CIK 0001778660 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,283.336

F1 · shares: Represents an award of restricted stock units ("RSU") granted as part of the non-employee director's annual compensation and which vests in full on the first anniversary of the grant date, subject to certain acceleration conditions. RSUs represent a contingent right to receive one share of the Company's common stock upon vesting pursuant to the Company's 2020 Omnibus Plan.

F2 · balance_after: This amount includes RSUs received pursuant to the dividend equivalent provisions of the RSU awards, and which are subject to the same vesting conditions as the underlying RSUs.

SEC source: 0000950170-24-065217 · ownership.xml · derivative · entry 1

Hersman Deborah · CIK 0001778660 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,635

Underlying: Common stock, par value $0.01 · 2,055 shares

Expires not disclosed

F1 · derivative.exercise_price: Shares of phantom stock are convertible into ONE Gas' common stock on a 1-for-1 ratio.

F2 · kind: Annual stock retainer elected to be deferred to phantom stock under ONE Gas' Deferred Compensation Plan for Non-Employee Directors.

F3 · derivative.exercise_date: Phantom stock is accrued under ONE Gas' Deferred Compensation Plan for Non-Employee Directors (the "Plan") and is settled in shares of ONE Gas common stock at the distribution date described in the Plan.

F3 · derivative.expiration_date: Phantom stock is accrued under ONE Gas' Deferred Compensation Plan for Non-Employee Directors (the "Plan") and is settled in shares of ONE Gas common stock at the distribution date described in the Plan.

SEC source: 0001127602-24-015471 · form4.xml · nonDerivative · entry 1

Hersman Deborah · CIK 0001778660 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,632.811

F1 · shares: Represents an award of restricted stock units ("RSU") granted as part of the non-employee director's annual compensation and which vests in full on the first anniversary of the grant date, subject to certain acceleration conditions. RSUs represent a contingent right to receive one share of the Company's common stock upon vesting pursuant to the Company's 2020 Omnibus Plan.

F2 · balance_after: This amount includes RSUs received pursuant to the dividend equivalent provisions of the RSU awards, and which are subject to the same vesting conditions as the underlying RSUs.

SEC source: 0000950170-23-033514 · ownership.xml · derivative · entry 1

Hersman Deborah · CIK 0001778660 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,533

Underlying: Common stock, par value $0.01 · 1,533 shares

Expires not disclosed

F1 · derivative.exercise_price: Shares of phantom stock are convertible into ONE Gas' common stock on a 1-for-1 ratio.

F2 · kind: Annual stock retainer elected to be deferred to phantom stock under ONE Gas' Deferred Compensation Plan for Non-Employee Directors.

F3 · derivative.exercise_date: Phantom stock is accrued under ONE Gas' Deferred Compensation Plan for Non-Employee Directors (the "Plan") and is settled in shares of ONE Gas common stock at the distribution date described in the Plan.

F3 · derivative.expiration_date: Phantom stock is accrued under ONE Gas' Deferred Compensation Plan for Non-Employee Directors (the "Plan") and is settled in shares of ONE Gas common stock at the distribution date described in the Plan.

SEC source: 0001127602-23-016876 · form4.xml · nonDerivative · entry 1

Hersman Deborah · CIK 0001778660 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,713.693

F1 · shares: Represents an award of restricted stock units ("RSU") granted as part of the non-employee director's annual compensation and which vests in full on the last day of the director's annual term for which the RSUs are awarded, subject to certain acceleration conditions. RSUs represent a contingent right to receive one share of the Company's common stock upon vesting pursuant to the Company's 2020 Omnibus Plan.

F2 · balance_after: This amount includes RSUs received pursuant to the dividend equivalent provisions of the RSU awards, and which are subject to the same vesting conditions as the underlying RSUs.

SEC source: 0001127602-22-015606 · form4.xml · nonDerivative · entry 1

Hersman Deborah · CIK 0001778660 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,877.792

F1 · shares: Represents an award of restricted stock units ("RSU") granted as part of the non-employee director's annual compensation and which vests in full on the last day of the director's annual term for which the RSUs are awarded, subject to certain acceleration conditions. RSUs represent a contingent right to receive one share of the Company's common stock upon vesting pursuant to the Company's 2020 Omnibus Plan.

F2 · balance_after: This amount includes RSUs received pursuant to the dividend equivalent provisions of the RSU awards, and which are subject to the same vesting conditions as the underlying RSUs.

SEC source: 0001104659-21-080943 · tm2119703-3_4seq1.xml · derivative · entry 1

Hersman Deborah · CIK 0001778660 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,463

Underlying: Common Stock · 14,463 shares

Expires not disclosed

F1 · derivative.exercise_price: The Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of the issuer's common stock. The RSUs were granted in connection with the Reporting Person's service as a member of the Board of Directors. Subject to the Reporting Person's continuous service, the RSUs will vest in full on the earlier of the one-year anniversary of the date of grant or on the date of the regular meeting of the Issuer's stockholders following the date of grant.

F1 · derivative.exercise_date: The Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of the issuer's common stock. The RSUs were granted in connection with the Reporting Person's service as a member of the Board of Directors. Subject to the Reporting Person's continuous service, the RSUs will vest in full on the earlier of the one-year anniversary of the date of grant or on the date of the regular meeting of the Issuer's stockholders following the date of grant.

F1 · derivative.expiration_date: The Reporting Person was granted restricted stock units ("RSUs"), which represent a contingent right to receive one share of the issuer's common stock. The RSUs were granted in connection with the Reporting Person's service as a member of the Board of Directors. Subject to the Reporting Person's continuous service, the RSUs will vest in full on the earlier of the one-year anniversary of the date of grant or on the date of the regular meeting of the Issuer's stockholders following the date of grant.

SEC source: 0001127602-21-018107 · form4.xml · nonDerivative · entry 1

Hersman Deborah · CIK 0001778660 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,021.826

F1 · shares: Represents an award of restricted stock units ("RSU") granted as part of the non-employee director's annual compensation and which vests in full on the last day of the director's annual term for which the RSUs are awarded, subject to certain acceleration conditions. RSUs represent a contingent right to receive one share of the Company's common stock upon vesting pursuant to the Company's 2020 Omnibus Plan.

F2 · balance_after: This amount includes 436.164 RSUs received pursuant to the dividend equivalent provisions of the RSU awards and which are subject to the same vesting conditions as the underlying RSUs.

SEC source: 0001104659-21-037881 · tm2110101d2_4.xml · derivative · entry 1

Hersman Deborah · CIK 0001778660 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,386

Underlying: Common Stock · 9,386 shares

Expires not disclosed

F1 · derivative.exercise_date: The Reporting Person was granted restricted stock units ("RSUs") which represent a contingent right to receive one share of Common Stock for each RSU. The RSU shall vest with respect to 1/3rd of the RSUs annually after March 15, 2021, provided the Reporting Person remains in continuous service on each vesting date.

F1 · derivative.expiration_date: The Reporting Person was granted restricted stock units ("RSUs") which represent a contingent right to receive one share of Common Stock for each RSU. The RSU shall vest with respect to 1/3rd of the RSUs annually after March 15, 2021, provided the Reporting Person remains in continuous service on each vesting date.

SEC source: 0001127602-20-017458 · form4.xml · nonDerivative · entry 1

Hersman Deborah · CIK 0001778660 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,663.662

F1 · shares: Represents an award of restricted stock units ("RSU") granted as part of the non-employee director's annual compensation and which vests in full on the last day of the director's annual term for which the RSUs are awarded, subject to certain acceleration conditions. RSUs represent a contingent right to receive one share of the Company's common stock upon vesting pursuant to the Company's 2020 Omnibus Plan.

F2 · balance_after: This amount includes 99.513 RSUs received pursuant to the dividend equivalent provisions of the RSU awards and which are subject to the same vesting conditions as the underlying RSUs.

SEC source: 0001127602-19-021003 · form4.xml · nonDerivative · entry 1

Hersman Deborah · CIK 0001778660 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,598.856

F1 · shares: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Company's common stock pursuant to the Company's 2010 Omnibus Plan. The RSUs are granted as part of the non-employee director's annual compensation and vest in full on the first anniversary of the date of grant for which the RSUs are awarded, subject to certain acceleration conditions.