Christopher P. Sighinolfi - 18 Feb 2025 Form 4/A - Amendment Insider Report for ONE Gas, Inc. (OGS)

Role: Senior Vice President and Chief Financial Officer
Signature: /s/ Brian K. Shore, Attorney-in-Fact for Christopher P. Sighinolfi
Issuer symbol: OGS
Transactions as of: 18 Feb 2025
Net transactions value: +$22,466
Form type: 4/A - Amendment
Filing time: 07 Apr 2025, 16:15:04 UTC
Date Of Original Report: 20 Feb 2025
Previous filing: 21 Feb 2024
Next filing: 19 Feb 2026
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	OGS	Common stock, par value $0.01	Tax liability	$1,275	-18	-0.81%	$71.53	2,171	18 Feb 2025	Direct	F1, F2
transaction	OGS	Common stock, par value $0.01	Options Exercise	$36,190	+506	+23%	$71.53	2,677	18 Feb 2025	Direct	F2
transaction	OGS	Common stock, par value $0.01	Tax liability	$12,449	-174	-6.5%	$71.53	2,503	18 Feb 2025	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The Form 4, as originally filed on February 20, 2025, incorrectly reported in line 2 of Column 4 of Table I, 59.149 shares were withheld and cancelled for taxes in connection with vesting of 758.352 performance unit shares deferred by the reporting person. Later, the issuer revised the actual number of shares required based on updated withholding calculations. Thus, as reported in this amendment, the reporting person only surrendered 17.822 shares of the issuer's Common Stock to satisfy those tax withholding obligations, and this amendment corrects that amount.
F2	After recalculation of 17.822 shares withheld and cancelled for taxes as reported on line 1 of Column 4 of Table I above, the share difference of 41.327 has been corrected in the calculations shown in Column 5 of Table I on lines 1, 2 and 3. The new totals in Column 5 above amends the totals reported on lines 2, 3 and 4 of Column 5 of Table 1 as originally filed in the Form 4 on February 20, 2025.

Content

The Form 4, as originally filed on February 20, 2025, incorrectly reported in line 2 of Column 4 of Table I, 59.149 shares were withheld and cancelled for taxes in connection with vesting of 758.352 performance unit shares deferred by the reporting person. Later, the issuer revised the actual number of shares required based on updated withholding calculations. Thus, as reported in this amendment, the reporting person only surrendered 17.822 shares of the issuer's Common Stock to satisfy those tax withholding obligations, and this amendment corrects that amount.

After recalculation of 17.822 shares withheld and cancelled for taxes as reported on line 1 of Column 4 of Table I above, the share difference of 41.327 has been corrected in the calculations shown in Column 5 of Table I on lines 1, 2 and 3. The new totals in Column 5 above amends the totals reported on lines 2, 3 and 4 of Column 5 of Table 1 as originally filed in the Form 4 on February 20, 2025.

Remarks:

Senior Vice President and Chief Financial Officer