John W. Gibson - 03 Jun 2026 Form 4 Insider Report for ONE Gas, Inc. (OGS)

Reporting relationship: Director
Issuer ticker: OGS
Reported as of: 03 Jun 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 04 Jun 2026, 16:15:04 UTC
Prior SEC filing: 27 May 2025
Source filing: View source filing
Reporting owner signature: /s/ Brian K. Shore, Attorney-in-Fact for John W. Gibson

Key filing fact

John W. Gibson filed Form 4 for ONE Gas, Inc. (OGS) on 04 Jun 2026.

Key facts

This page summarizes John W. Gibson's Form 4 filing for ONE Gas, Inc. (OGS).
2 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 04 Jun 2026, 16:15.

Change

Previous filing in this sequence was filed on 27 May 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001239209 Primary reporting owner

GIBSON JOHN WILLIAM

Relationship: Director
Address: 15 E. 5TH STREET, TULSA
Signature: /s/ Brian K. Shore, Attorney-in-Fact for John W. Gibson
Signature date: 04 Jun 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

OGS transaction

Common stock, par value $0.01

Options Exercise

Transaction value
Shares: +19,976
Change %: +7.3%
Price: $77.47^*
Shares after: 292,670
Date: 03 Jun 2026
Ownership: Direct
Footnotes: F1

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

OGS transaction Derivative

Phantom Stock

Options Exercise

Transaction value
Shares: -19,976
Change %: -77%
Price: $77.74^*
Shares after: 6,010
Date: 03 Jun 2026
Ownership: Direct
Underlying class: Common stock, par value $0.01
Underlying amount: 19,976
Exercise price
Footnotes: F1, F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Section 16 status

John W. Gibson is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may still apply in specific circumstances.

Explanation of responses 2 footnotes

Footnote F1

Represents settlement of deferred stock units credited under the ONE Gas Deferred Compensation Plan for Non-Employee Directors (the "Plan"), payable in shares of common stock and convertible on a 1-for-1 ratio pursuant to the ONE Gas, Inc. Amended and Restated Equity Compensation Plan (2018) following the reporting person's retirement on May 21, 2026. 19,976 phantom stock units, including dividend-equivalent units credited through the June 2, 2026 dividend payment date, were settled in shares of common stock on June 3, 2026.

Footnote F2

The reporting person continues to hold phantom stock units subject to prior deferred distribution elections, which remain payable in future installments pursuant to the Plan.