OGS

SEC source: 0001193125-26-059429 · ownership.xml · nonDerivative · entry 2

McCormick Joseph L · CIK 0001595607 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 74,907.02

F1 · shares: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award, including dividend equivalents, vested on a prorated basis upon the reporting person's December 9, 2025, retirement pursuant to the terms of the award agreement. The award vested on February 14, 2026, in an amount equal to 76% of the performance units awarded based upon Issuer's total shareholder return compared to the total shareholder return of a selected peer group, was certified by the Executive Compensation Committee of the Board of Directors on February 16, 2026, and issued pursuant to the terms of the grant agreement.

F1 · price: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award, including dividend equivalents, vested on a prorated basis upon the reporting person's December 9, 2025, retirement pursuant to the terms of the award agreement. The award vested on February 14, 2026, in an amount equal to 76% of the performance units awarded based upon Issuer's total shareholder return compared to the total shareholder return of a selected peer group, was certified by the Executive Compensation Committee of the Board of Directors on February 16, 2026, and issued pursuant to the terms of the grant agreement.

SEC source: 0001193125-26-059429 · ownership.xml · nonDerivative · entry 1

McCormick Joseph L · CIK 0001595607 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 76,515.31

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award, including dividend equivalents, vested on a prorated basis upon the reporting person's December 9, 2025, retirement pursuant to the terms of the award agreement. The award vested on February 14, 2026, in an amount equal to 76% of the performance units awarded based upon Issuer's total shareholder return compared to the total shareholder return of a selected peer group, was certified by the Executive Compensation Committee of the Board of Directors on February 16, 2026, and issued pursuant to the terms of the grant agreement.

F1 · price: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award, including dividend equivalents, vested on a prorated basis upon the reporting person's December 9, 2025, retirement pursuant to the terms of the award agreement. The award vested on February 14, 2026, in an amount equal to 76% of the performance units awarded based upon Issuer's total shareholder return compared to the total shareholder return of a selected peer group, was certified by the Executive Compensation Committee of the Board of Directors on February 16, 2026, and issued pursuant to the terms of the grant agreement.

SEC source: 0001193125-26-059419 · ownership.xml · derivative · entry 9

Brumfield Brian F. · CIK 0001951536 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 959

Underlying: Common stock, par value $0.01 · 959 shares

Expires not disclosed

F4 · derivative.exercise_price: Restricted units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award vests on February 17, 2029, in accordance with the terms of the Restricted Unit Award Agreement.

F4 · price: Restricted units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award vests on February 17, 2029, in accordance with the terms of the Restricted Unit Award Agreement.

F4 · derivative.exercise_date: Restricted units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award vests on February 17, 2029, in accordance with the terms of the Restricted Unit Award Agreement.

F4 · derivative.expiration_date: Restricted units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award vests on February 17, 2029, in accordance with the terms of the Restricted Unit Award Agreement.

SEC source: 0001193125-26-059419 · ownership.xml · derivative · entry 8

Brumfield Brian F. · CIK 0001951536 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 959

Underlying: Common stock, par value $0.01 · 959 shares

Expires not disclosed

F3 · derivative.exercise_price: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award will vest on February 17, 2029, for a percentage (0% to 200%) of the performance units awarded based upon the Issuer's total shareholder return compared to total stockholder return of a selected peer group over the performance period from January 1, 2026, through December 31, 2029, in accordance with the terms of the Performance Unit Award Agreement.

F3 · price: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award will vest on February 17, 2029, for a percentage (0% to 200%) of the performance units awarded based upon the Issuer's total shareholder return compared to total stockholder return of a selected peer group over the performance period from January 1, 2026, through December 31, 2029, in accordance with the terms of the Performance Unit Award Agreement.

F3 · derivative.exercise_date: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award will vest on February 17, 2029, for a percentage (0% to 200%) of the performance units awarded based upon the Issuer's total shareholder return compared to total stockholder return of a selected peer group over the performance period from January 1, 2026, through December 31, 2029, in accordance with the terms of the Performance Unit Award Agreement.

F3 · derivative.expiration_date: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award will vest on February 17, 2029, for a percentage (0% to 200%) of the performance units awarded based upon the Issuer's total shareholder return compared to total stockholder return of a selected peer group over the performance period from January 1, 2026, through December 31, 2029, in accordance with the terms of the Performance Unit Award Agreement.

SEC source: 0001193125-26-059419 · ownership.xml · derivative · entry 6

Brumfield Brian F. · CIK 0001951536 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock, par value $0.01 · 1,513 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award, including dividend equivalents, vested on February 14, 2026, in an amount equal to 76% of the performance units awarded based upon Issuer's total shareholder return compared to the total shareholder return of a selected peer group, was certified by the Executive Compensation Committee of the Board of Directors on February 16, 2026, and issued pursuant to the terms of the grant agreement.

F1 · price: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award, including dividend equivalents, vested on February 14, 2026, in an amount equal to 76% of the performance units awarded based upon Issuer's total shareholder return compared to the total shareholder return of a selected peer group, was certified by the Executive Compensation Committee of the Board of Directors on February 16, 2026, and issued pursuant to the terms of the grant agreement.

F1 · derivative.exercise_date: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award, including dividend equivalents, vested on February 14, 2026, in an amount equal to 76% of the performance units awarded based upon Issuer's total shareholder return compared to the total shareholder return of a selected peer group, was certified by the Executive Compensation Committee of the Board of Directors on February 16, 2026, and issued pursuant to the terms of the grant agreement.

F1 · derivative.expiration_date: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award, including dividend equivalents, vested on February 14, 2026, in an amount equal to 76% of the performance units awarded based upon Issuer's total shareholder return compared to the total shareholder return of a selected peer group, was certified by the Executive Compensation Committee of the Board of Directors on February 16, 2026, and issued pursuant to the terms of the grant agreement.

SEC source: 0001193125-26-059419 · ownership.xml · nonDerivative · entry 2

Brumfield Brian F. · CIK 0001951536 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,870.446

F1 · shares: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award, including dividend equivalents, vested on February 14, 2026, in an amount equal to 76% of the performance units awarded based upon Issuer's total shareholder return compared to the total shareholder return of a selected peer group, was certified by the Executive Compensation Committee of the Board of Directors on February 16, 2026, and issued pursuant to the terms of the grant agreement.

F1 · price: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award, including dividend equivalents, vested on February 14, 2026, in an amount equal to 76% of the performance units awarded based upon Issuer's total shareholder return compared to the total shareholder return of a selected peer group, was certified by the Executive Compensation Committee of the Board of Directors on February 16, 2026, and issued pursuant to the terms of the grant agreement.

SEC source: 0001193125-26-059419 · ownership.xml · nonDerivative · entry 1

Brumfield Brian F. · CIK 0001951536 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,308.844

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award, including dividend equivalents, vested on February 14, 2026, in an amount equal to 76% of the performance units awarded based upon Issuer's total shareholder return compared to the total shareholder return of a selected peer group, was certified by the Executive Compensation Committee of the Board of Directors on February 16, 2026, and issued pursuant to the terms of the grant agreement.

F1 · price: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award, including dividend equivalents, vested on February 14, 2026, in an amount equal to 76% of the performance units awarded based upon Issuer's total shareholder return compared to the total shareholder return of a selected peer group, was certified by the Executive Compensation Committee of the Board of Directors on February 16, 2026, and issued pursuant to the terms of the grant agreement.

SEC source: 0001193125-26-059424 · ownership.xml · derivative · entry 8

Bender Mark A. · CIK 0001657393 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,534

Underlying: Common stock, par value $0.01 · 1,534 shares

Expires not disclosed

F4 · derivative.exercise_price: Restricted units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award vests on February 17, 2029, in accordance with the terms of the Restricted Unit Award Agreement.

F4 · price: Restricted units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award vests on February 17, 2029, in accordance with the terms of the Restricted Unit Award Agreement.

F4 · derivative.exercise_date: Restricted units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award vests on February 17, 2029, in accordance with the terms of the Restricted Unit Award Agreement.

F4 · derivative.expiration_date: Restricted units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award vests on February 17, 2029, in accordance with the terms of the Restricted Unit Award Agreement.

SEC source: 0001193125-26-059424 · ownership.xml · derivative · entry 7

Bender Mark A. · CIK 0001657393 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,301

Underlying: Common stock, par value $0.01 · 2,301 shares

Expires not disclosed

F3 · derivative.exercise_price: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award will vest on February 17, 2029, for a percentage (0% to 200%) of the performance units awarded based upon the Issuer's total shareholder return compared to total stockholder return of a selected peer group over the performance period from January 1, 2026, through December 31, 2029, in accordance with the terms of the Performance Unit Award Agreement.

F3 · price: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award will vest on February 17, 2029, for a percentage (0% to 200%) of the performance units awarded based upon the Issuer's total shareholder return compared to total stockholder return of a selected peer group over the performance period from January 1, 2026, through December 31, 2029, in accordance with the terms of the Performance Unit Award Agreement.

F3 · derivative.exercise_date: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award will vest on February 17, 2029, for a percentage (0% to 200%) of the performance units awarded based upon the Issuer's total shareholder return compared to total stockholder return of a selected peer group over the performance period from January 1, 2026, through December 31, 2029, in accordance with the terms of the Performance Unit Award Agreement.

F3 · derivative.expiration_date: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award will vest on February 17, 2029, for a percentage (0% to 200%) of the performance units awarded based upon the Issuer's total shareholder return compared to total stockholder return of a selected peer group over the performance period from January 1, 2026, through December 31, 2029, in accordance with the terms of the Performance Unit Award Agreement.

SEC source: 0001193125-26-059424 · ownership.xml · derivative · entry 5

Bender Mark A. · CIK 0001657393 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock, par value $0.01 · 3,179 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award, including dividend equivalents, vested on February 14, 2026, in an amount equal to 76% of the performance units awarded based upon Issuer's total shareholder return compared to the total shareholder return of a selected peer group, was certified by the Executive Compensation Committee of the Board of Directors on February 16, 2026, and issued pursuant to the terms of the grant agreement.

F1 · price: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award, including dividend equivalents, vested on February 14, 2026, in an amount equal to 76% of the performance units awarded based upon Issuer's total shareholder return compared to the total shareholder return of a selected peer group, was certified by the Executive Compensation Committee of the Board of Directors on February 16, 2026, and issued pursuant to the terms of the grant agreement.

F1 · derivative.exercise_date: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award, including dividend equivalents, vested on February 14, 2026, in an amount equal to 76% of the performance units awarded based upon Issuer's total shareholder return compared to the total shareholder return of a selected peer group, was certified by the Executive Compensation Committee of the Board of Directors on February 16, 2026, and issued pursuant to the terms of the grant agreement.

F1 · derivative.expiration_date: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award, including dividend equivalents, vested on February 14, 2026, in an amount equal to 76% of the performance units awarded based upon Issuer's total shareholder return compared to the total shareholder return of a selected peer group, was certified by the Executive Compensation Committee of the Board of Directors on February 16, 2026, and issued pursuant to the terms of the grant agreement.

SEC source: 0001193125-26-059424 · ownership.xml · nonDerivative · entry 2

Bender Mark A. · CIK 0001657393 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,582.399

F1 · shares: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award, including dividend equivalents, vested on February 14, 2026, in an amount equal to 76% of the performance units awarded based upon Issuer's total shareholder return compared to the total shareholder return of a selected peer group, was certified by the Executive Compensation Committee of the Board of Directors on February 16, 2026, and issued pursuant to the terms of the grant agreement.

F1 · price: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award, including dividend equivalents, vested on February 14, 2026, in an amount equal to 76% of the performance units awarded based upon Issuer's total shareholder return compared to the total shareholder return of a selected peer group, was certified by the Executive Compensation Committee of the Board of Directors on February 16, 2026, and issued pursuant to the terms of the grant agreement.

SEC source: 0001193125-26-059424 · ownership.xml · nonDerivative · entry 1

Bender Mark A. · CIK 0001657393 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,850.571

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award, including dividend equivalents, vested on February 14, 2026, in an amount equal to 76% of the performance units awarded based upon Issuer's total shareholder return compared to the total shareholder return of a selected peer group, was certified by the Executive Compensation Committee of the Board of Directors on February 16, 2026, and issued pursuant to the terms of the grant agreement.

F1 · price: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award, including dividend equivalents, vested on February 14, 2026, in an amount equal to 76% of the performance units awarded based upon Issuer's total shareholder return compared to the total shareholder return of a selected peer group, was certified by the Executive Compensation Committee of the Board of Directors on February 16, 2026, and issued pursuant to the terms of the grant agreement.

SEC source: 0001193125-26-059418 · ownership.xml · derivative · entry 2

Gregory Regina · CIK 0001682050 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,557

Underlying: Common stock, par value $0.01 · 2,557 shares

Expires not disclosed

F2 · derivative.exercise_price: Restricted units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award vests on February 17, 2029, in accordance with the terms of the Restricted Unit Award Agreement.

F2 · price: Restricted units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award vests on February 17, 2029, in accordance with the terms of the Restricted Unit Award Agreement.

F2 · derivative.exercise_date: Restricted units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award vests on February 17, 2029, in accordance with the terms of the Restricted Unit Award Agreement.

F2 · derivative.expiration_date: Restricted units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award vests on February 17, 2029, in accordance with the terms of the Restricted Unit Award Agreement.

SEC source: 0001193125-26-059418 · ownership.xml · derivative · entry 1

Gregory Regina · CIK 0001682050 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,835

Underlying: Common stock, par value $0.01 · 3,835 shares

Expires not disclosed

F1 · derivative.exercise_price: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award will vest on February 17, 2029, for a percentage (0% to 200%) of the performance units awarded based upon the Issuer's total shareholder return compared to total stockholder return of a selected peer group over the performance period from January 1, 2026, through December 31, 2029, in accordance with the terms of the Performance Unit Award Agreement.

F1 · price: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award will vest on February 17, 2029, for a percentage (0% to 200%) of the performance units awarded based upon the Issuer's total shareholder return compared to total stockholder return of a selected peer group over the performance period from January 1, 2026, through December 31, 2029, in accordance with the terms of the Performance Unit Award Agreement.

F1 · derivative.exercise_date: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award will vest on February 17, 2029, for a percentage (0% to 200%) of the performance units awarded based upon the Issuer's total shareholder return compared to total stockholder return of a selected peer group over the performance period from January 1, 2026, through December 31, 2029, in accordance with the terms of the Performance Unit Award Agreement.

F1 · derivative.expiration_date: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award will vest on February 17, 2029, for a percentage (0% to 200%) of the performance units awarded based upon the Issuer's total shareholder return compared to total stockholder return of a selected peer group over the performance period from January 1, 2026, through December 31, 2029, in accordance with the terms of the Performance Unit Award Agreement.

SEC source: 0001193125-26-059428 · ownership.xml · derivative · entry 7

Sighinolfi Christopher P. · CIK 0002003976 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock, par value $0.01 · 535 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F3 · price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F3 · derivative.exercise_date: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F3 · derivative.expiration_date: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

SEC source: 0001193125-26-059428 · ownership.xml · nonDerivative · entry 4

Sighinolfi Christopher P. · CIK 0002003976 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,518.114

F3 · shares: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F3 · price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

SEC source: 0001193125-26-059428 · ownership.xml · nonDerivative · entry 3

Sighinolfi Christopher P. · CIK 0002003976 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,722.093

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · shares: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F3 · price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

SEC source: 0001193125-26-059425 · ownership.xml · derivative · entry 6

Kouplen Angela · CIK 0001675087 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock, par value $0.01 · 660 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · derivative.exercise_date: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · derivative.expiration_date: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

SEC source: 0001193125-26-059425 · ownership.xml · nonDerivative · entry 4

Kouplen Angela · CIK 0001675087 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,856.663

F2 · shares: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

SEC source: 0001193125-26-059425 · ownership.xml · nonDerivative · entry 3

Kouplen Angela · CIK 0001675087 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,157.266

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

SEC source: 0001193125-26-059412 · ownership.xml · derivative · entry 6

McAnnally Robert S. · CIK 0001636734 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock, par value $0.01 · 5,624 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · derivative.exercise_date: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · derivative.expiration_date: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

SEC source: 0001193125-26-059412 · ownership.xml · nonDerivative · entry 4

McAnnally Robert S. · CIK 0001636734 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,530.166

F2 · shares: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

SEC source: 0001193125-26-059412 · ownership.xml · nonDerivative · entry 3

McAnnally Robert S. · CIK 0001636734 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 62,283.415

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

SEC source: 0001193125-26-059415 · ownership.xml · derivative · entry 7

DINAN CURTIS · CIK 0001278745 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock, par value $0.01 · 1,589 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · derivative.exercise_date: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · derivative.expiration_date: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

SEC source: 0001193125-26-059415 · ownership.xml · nonDerivative · entry 4

DINAN CURTIS · CIK 0001278745 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 142,259.427

F2 · shares: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

SEC source: 0001193125-26-059415 · ownership.xml · nonDerivative · entry 3

DINAN CURTIS · CIK 0001278745 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 143,037.333

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

SEC source: 0001193125-26-059432 · ownership.xml · derivative · entry 7

Shortridge William Kent · CIK 0001916652 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock, par value $0.01 · 489 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · derivative.exercise_date: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · derivative.expiration_date: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

SEC source: 0001193125-26-059432 · ownership.xml · nonDerivative · entry 4

Shortridge William Kent · CIK 0001916652 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,607.086

F2 · shares: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

SEC source: 0001193125-26-059432 · ownership.xml · nonDerivative · entry 3

Shortridge William Kent · CIK 0001916652 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,846.018

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

SEC source: 0001193125-26-059419 · ownership.xml · derivative · entry 7

Brumfield Brian F. · CIK 0001951536 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock, par value $0.01 · 504 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · derivative.exercise_date: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · derivative.expiration_date: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

SEC source: 0001193125-26-059419 · ownership.xml · nonDerivative · entry 4

Brumfield Brian F. · CIK 0001951536 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,246.212

F2 · shares: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

SEC source: 0001193125-26-059419 · ownership.xml · nonDerivative · entry 3

Brumfield Brian F. · CIK 0001951536 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,433.126

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

SEC source: 0001193125-26-059424 · ownership.xml · derivative · entry 6

Bender Mark A. · CIK 0001657393 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock, par value $0.01 · 795 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · derivative.exercise_date: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · derivative.expiration_date: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

SEC source: 0001193125-26-059424 · ownership.xml · nonDerivative · entry 4

Bender Mark A. · CIK 0001657393 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,080.769

F2 · shares: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

SEC source: 0001193125-26-059424 · ownership.xml · nonDerivative · entry 3

Bender Mark A. · CIK 0001657393 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,469.959

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · shares: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

F2 · price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The shares were issued pursuant to the terms of the grant agreement.

SEC source: 0001193125-25-309689 · ownership.xml · nonDerivative · entry 1

Hutchinson Michael G · CIK 0001555428 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,631

SEC source: 0000950170-25-077701 · ownership.xml · nonDerivative · entry 1

Meshri Sanjay D. · CIK 0002030411 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,593

F1 · kind: Annual stock retainer shares are issued under the Issuer's Amended and Restated Equity Compensation Plan (2018).

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: 0000950170-25-077698 · ownership.xml · nonDerivative · entry 1

Hart Tracy E · CIK 0001747990 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,602

F1 · kind: Annual stock retainer shares are issued under the Issuer's Amended and Restated Equity Compensation Plan (2018).

SEC source: 0000950170-25-077706 · ownership.xml · derivative · entry 2

RODRIGUEZ EDUARDO A · CIK 0001286450 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,695

Underlying: Common stock, par value $0.01 · 476 shares

Expires not disclosed

F2 · derivative.exercise_price: Shares of phantom stock are convertible into ONE Gas' common stock on a 1-for-1 ratio.

F3 · kind: Annual cash and/or stock retainer elected to be deferred to phantom stock under ONE Gas' Deferred Compensation Plan for Non-Employee Directors.

F4 · 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.

F4 · 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: 0000950170-25-077706 · ownership.xml · nonDerivative · entry 1

RODRIGUEZ EDUARDO A · CIK 0001286450 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,212

F1 · kind: Annual stock retainer shares are issued under ONE Gas' Amended and Restated Equity Compensation Plan (2018).

SEC source: 0000950170-25-077699 · ownership.xml · derivative · entry 1

GIBSON JOHN WILLIAM · CIK 0001239209 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,915

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 cash and/or 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: 0000950170-25-077705 · ownership.xml · derivative · entry 1

MOORE PATTYE L · CIK 0001185026 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 52,412

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 cash and/or 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: 0000950170-25-077704 · ownership.xml · nonDerivative · entry 1

Hutchinson Michael G · CIK 0001555428 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,631

F1 · kind: Annual stock retainer shares are issued under the Issuer's Equity Compensation Plan.

SEC source: 0000950170-25-077703 · ownership.xml · derivative · entry 1

Siegel Yves C · CIK 0001572715 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,640

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: 0000950170-25-042668 · ownership.xml · nonDerivative · entry 1

Hutchinson Michael G · CIK 0001555428 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,726

SEC source: 0000950170-25-024170 · ownership.xml · derivative · entry 8

Sighinolfi Christopher P. · CIK 0002003976 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,775

Underlying: Common stock, par value $0.01 · 3,775 shares

Expires not disclosed

F5 · derivative.exercise_price: Restricted units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award vests on February 19, 2028, in accordance with the terms of the Restricted Unit Award Agreement. During the 3-year vesting period, the award will be credited with dividend equivalents that will be paid out at the time the underlying units are issued. The award and credited dividend equivalents will be payable one share of the Issuer's common stock for each vested restricted unit and dividend equivalent.

F5 · price: Restricted units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award vests on February 19, 2028, in accordance with the terms of the Restricted Unit Award Agreement. During the 3-year vesting period, the award will be credited with dividend equivalents that will be paid out at the time the underlying units are issued. The award and credited dividend equivalents will be payable one share of the Issuer's common stock for each vested restricted unit and dividend equivalent.

F5 · derivative.exercise_date: Restricted units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award vests on February 19, 2028, in accordance with the terms of the Restricted Unit Award Agreement. During the 3-year vesting period, the award will be credited with dividend equivalents that will be paid out at the time the underlying units are issued. The award and credited dividend equivalents will be payable one share of the Issuer's common stock for each vested restricted unit and dividend equivalent.

F5 · derivative.expiration_date: Restricted units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award vests on February 19, 2028, in accordance with the terms of the Restricted Unit Award Agreement. During the 3-year vesting period, the award will be credited with dividend equivalents that will be paid out at the time the underlying units are issued. The award and credited dividend equivalents will be payable one share of the Issuer's common stock for each vested restricted unit and dividend equivalent.

SEC source: 0000950170-25-024170 · ownership.xml · derivative · entry 7

Sighinolfi Christopher P. · CIK 0002003976 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,662

Underlying: Common stock, par value $0.01 · 5,662 shares

Expires not disclosed

F4 · derivative.exercise_price: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award will vest on February 19, 2028, for a percentage (0% to 200%) of the performance units awarded based upon the Issuer's total shareholder return compared to total stockholder return of a selected peer group over the performance period from January 1, 2025, through December 31, 2027, in accordance with the terms of the Performance Unit Award Agreement. During the 3-year vesting period, the award will be credited with dividend equivalents that will be paid out at the time the underlying units are issued. The award and credited dividend equivalents will be payable one share of the Issuer's common stock for each vested performance unit and dividend equivalent.

F4 · price: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award will vest on February 19, 2028, for a percentage (0% to 200%) of the performance units awarded based upon the Issuer's total shareholder return compared to total stockholder return of a selected peer group over the performance period from January 1, 2025, through December 31, 2027, in accordance with the terms of the Performance Unit Award Agreement. During the 3-year vesting period, the award will be credited with dividend equivalents that will be paid out at the time the underlying units are issued. The award and credited dividend equivalents will be payable one share of the Issuer's common stock for each vested performance unit and dividend equivalent.

F4 · derivative.exercise_date: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award will vest on February 19, 2028, for a percentage (0% to 200%) of the performance units awarded based upon the Issuer's total shareholder return compared to total stockholder return of a selected peer group over the performance period from January 1, 2025, through December 31, 2027, in accordance with the terms of the Performance Unit Award Agreement. During the 3-year vesting period, the award will be credited with dividend equivalents that will be paid out at the time the underlying units are issued. The award and credited dividend equivalents will be payable one share of the Issuer's common stock for each vested performance unit and dividend equivalent.

F4 · derivative.expiration_date: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018). The award will vest on February 19, 2028, for a percentage (0% to 200%) of the performance units awarded based upon the Issuer's total shareholder return compared to total stockholder return of a selected peer group over the performance period from January 1, 2025, through December 31, 2027, in accordance with the terms of the Performance Unit Award Agreement. During the 3-year vesting period, the award will be credited with dividend equivalents that will be paid out at the time the underlying units are issued. The award and credited dividend equivalents will be payable one share of the Issuer's common stock for each vested performance unit and dividend equivalent.

SEC source: 0000950170-25-024170 · ownership.xml · derivative · entry 6

Sighinolfi Christopher P. · CIK 0002003976 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock, par value $0.01 · 455 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). The award vested on February 15, 2025. During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The award and credited dividend equivalents were payable one share of the Issuer's common stock for each vested restricted unit, including additional restricted units resulting from the dividend equivalents.

F3 · price: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). The award vested on February 15, 2025. During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The award and credited dividend equivalents were payable one share of the Issuer's common stock for each vested restricted unit, including additional restricted units resulting from the dividend equivalents.

F3 · derivative.exercise_date: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). The award vested on February 15, 2025. During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The award and credited dividend equivalents were payable one share of the Issuer's common stock for each vested restricted unit, including additional restricted units resulting from the dividend equivalents.

F3 · derivative.expiration_date: Restricted units awarded under Issuer's Amended and Restated Equity Compensation Plan (2018). The award vested on February 15, 2025. During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The award and credited dividend equivalents were payable one share of the Issuer's common stock for each vested restricted unit, including additional restricted units resulting from the dividend equivalents.

SEC source: 0000950170-25-024170 · ownership.xml · derivative · entry 5

Sighinolfi Christopher P. · CIK 0002003976 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock, par value $0.01 · 1,364 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018) (the "ECP"). The award, including dividend equivalents, vested on February 15, 2025, in an amount equal to 50% of the performance units awarded based upon Issuer's total shareholder return compared to the total shareholder return of a selected peer group and was certified by the Executive Compensation Committee of the Board of Directors on February 17, 2025. The reporting person's receipt of 758.352 shares of common stock was deferred under the ECP resulting in the reporting person's receipt of 758.352 deferred stock units. The deferred stock units become payable in shares of common stock after the reporting person's termination of service, pursuant to the reporting person's distribution election under the ECP. The reporting person is therefore reporting the disposition of 758.352 shares of common stock in exchange for an equal number of deferred stock units.

F2 · derivative.exercise_price: (Continued from footnote 1) The reporting person had 59.149 shares withheld and cancelled in respect of taxes in connection with the vesting of the performance units.

F1 · price: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018) (the "ECP"). The award, including dividend equivalents, vested on February 15, 2025, in an amount equal to 50% of the performance units awarded based upon Issuer's total shareholder return compared to the total shareholder return of a selected peer group and was certified by the Executive Compensation Committee of the Board of Directors on February 17, 2025. The reporting person's receipt of 758.352 shares of common stock was deferred under the ECP resulting in the reporting person's receipt of 758.352 deferred stock units. The deferred stock units become payable in shares of common stock after the reporting person's termination of service, pursuant to the reporting person's distribution election under the ECP. The reporting person is therefore reporting the disposition of 758.352 shares of common stock in exchange for an equal number of deferred stock units.

F2 · price: (Continued from footnote 1) The reporting person had 59.149 shares withheld and cancelled in respect of taxes in connection with the vesting of the performance units.

F1 · derivative.exercise_date: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018) (the "ECP"). The award, including dividend equivalents, vested on February 15, 2025, in an amount equal to 50% of the performance units awarded based upon Issuer's total shareholder return compared to the total shareholder return of a selected peer group and was certified by the Executive Compensation Committee of the Board of Directors on February 17, 2025. The reporting person's receipt of 758.352 shares of common stock was deferred under the ECP resulting in the reporting person's receipt of 758.352 deferred stock units. The deferred stock units become payable in shares of common stock after the reporting person's termination of service, pursuant to the reporting person's distribution election under the ECP. The reporting person is therefore reporting the disposition of 758.352 shares of common stock in exchange for an equal number of deferred stock units.

F2 · derivative.exercise_date: (Continued from footnote 1) The reporting person had 59.149 shares withheld and cancelled in respect of taxes in connection with the vesting of the performance units.

F1 · derivative.expiration_date: Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018) (the "ECP"). The award, including dividend equivalents, vested on February 15, 2025, in an amount equal to 50% of the performance units awarded based upon Issuer's total shareholder return compared to the total shareholder return of a selected peer group and was certified by the Executive Compensation Committee of the Board of Directors on February 17, 2025. The reporting person's receipt of 758.352 shares of common stock was deferred under the ECP resulting in the reporting person's receipt of 758.352 deferred stock units. The deferred stock units become payable in shares of common stock after the reporting person's termination of service, pursuant to the reporting person's distribution election under the ECP. The reporting person is therefore reporting the disposition of 758.352 shares of common stock in exchange for an equal number of deferred stock units.

F2 · derivative.expiration_date: (Continued from footnote 1) The reporting person had 59.149 shares withheld and cancelled in respect of taxes in connection with the vesting of the performance units.