Key facts
- This page summarizes Christopher P. Sighinolfi's Form 4 filing for ONE Gas, Inc. (OGS).
- 8 reported transactions and 4 derivative rows are listed below.
- Accepted by SEC: 19 Feb 2026, 16:15.
Christopher P. Sighinolfi - 14 Feb 2026 Form 4 Insider Report for ONE Gas, Inc. (OGS)
- Reporting relationship
- Senior Vice President and Chief Financial Officer
- Issuer ticker
- OGS
- Reported as of
- 14 Feb 2026
- Net transaction value
- +$782,515
- SEC form
- 4
- Accepted by SEC
- 19 Feb 2026, 16:15:24 UTC
- Prior SEC filing
- 07 Apr 2025
- Source filing
- View source filing
- Reporting owner signature
- /s/ Brian K. Shore, Attorney-in-Fact for Christopher P. Sighinolfi
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
Christopher P. Sighinolfi filed Form 4 for ONE Gas, Inc. (OGS) on 19 Feb 2026.
Change
- Previous filing in this sequence was filed on 07 Apr 2025.
- Current net transaction value: +$782,515.
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
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0002003976
Primary reporting owner
Sighinolfi Christopher P.
- Relationship
- Senior Vice President and Chief Financial Officer
- Address
- 15 E. 5TH STREET, TULSA
- Signature
- /s/ Brian K. Shore, Attorney-in-Fact for Christopher P. Sighinolfi
- Signature date
- 19 Feb 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
- $0
- Shares
- +1,362
- Change %
- +48%
- Price
- $0.000000
- Shares after
- 4,186
- Date
- 16 Feb 2026
- Ownership
- Direct
- Footnotes
- F1, F2
OGS
transaction
Common stock, par value $0.01
Tax liability
- Transaction value
- $5,294
- Shares
- -62
- Change %
- -1.5%
- Price
- $86.04
- Shares after
- 4,125
- Date
- 16 Feb 2026
- Ownership
- Direct
- Footnotes
- F1, F2
OGS
transaction
Common stock, par value $0.01
Options Exercise
- Transaction value
- $51,391
- Shares
- +597
- Change %
- +14%
- Price
- $86.04
- Shares after
- 4,722
- Date
- 14 Feb 2026
- Ownership
- Direct
- Footnotes
- F3
OGS
transaction
Common stock, par value $0.01
Tax liability
- Transaction value
- $17,550
- Shares
- -204
- Change %
- -4.3%
- Price
- $86.04
- Shares after
- 4,518
- Date
- 14 Feb 2026
- Ownership
- Direct
- Footnotes
- F3
OGS
holding
Common stock, par value $0.01
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 930
- Date
- 14 Feb 2026
- Ownership
- by 401(k) Plan
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
OGS
transaction
Derivative
Performance Units 2023
Options Exercise
- Transaction value
- $0
- Shares
- -1,605
- Change %
- -100%
- Price
- $0.000000
- Shares after
- 0
- Date
- 16 Feb 2026
- Ownership
- Direct
- Underlying class
- Common stock, par value $0.01
- Underlying amount
- 1,605
- Exercise price
- Footnotes
- F1, F2
OGS
transaction
Derivative
Restricted Units 2023
Options Exercise
- Transaction value
- $46,031
- Shares
- -535
- Change %
- -100%
- Price
- $86.04
- Shares after
- 0
- Date
- 14 Feb 2026
- Ownership
- Direct
- Underlying class
- Common stock, par value $0.01
- Underlying amount
- 535
- Exercise price
- Footnotes
- F3
OGS
transaction
Derivative
Performance Units 2026
Award
- Transaction value
- $480,017
- Shares
- +5,579
- Change %
- Price
- $86.04
- Shares after
- 5,579
- Date
- 16 Feb 2026
- Ownership
- Direct
- Underlying class
- Common stock, par value $0.01
- Underlying amount
- 5,579
- Exercise price
- Footnotes
- F4
OGS
transaction
Derivative
Restricted Units 2026
Award
- Transaction value
- $319,983
- Shares
- +3,719
- Change %
- Price
- $86.04
- Shares after
- 3,719
- Date
- 16 Feb 2026
- Ownership
- Direct
- Underlying class
- Common stock, par value $0.01
- Underlying amount
- 3,719
- Exercise price
- Footnotes
- F5
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 5 footnotes
Footnote F1
Performance units awarded under the Issuer's Amended and Restated Equity Compensation Plan (2018) (the "ECP"). 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. The reporting person's receipt of 1,361.820 shares of common stock was deferred resulting in the reporting person's receipt of 1,361.820 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.
Footnote F2
(Continued from footnote 1) The reporting person is therefore reporting the disposition of 1,361.820 shares of common stock in exchange for an equal number of deferred stock units. The reporting person had 61.527 shares withheld and cancelled in respect of taxes in connection with the vesting of the performance units.
Footnote F3
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.
Footnote F4
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.
Footnote F5
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 remarks
Senior Vice President and Chief Financial Officer