BENDER MARK A. (See Remarks) exercised options at ONE GAS, INC.

Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.

M · 2 exercises

BENDER MARK A.

Filed: 2/22/2023ACC: 0000899243-23-005831

InsiderBENDER MARK A.CIK 1657393

→

IssuerONE GAS, INC.CIK 1587732

Officer· See Remarks

Since Feb 2026

+2.17K

Net shares

Net buyer

$95.6K

Total sold

Open market trades

0B · 0S

Total transactions

6.46K acquired · 4.29K disposed

Non-Derivative Transactions4

Common stock, par value $0.01

Direct

M · Option Exercise

+1.80K

Price / share

$81.79

Trade value

$147.39K

% of position

7.9%

2/20/2023

22.70K→24.51K

Common stock, par value $0.01

Direct

F · Tax Withholding

−870.00

Price / share

$81.79

Trade value

$71.16K

% of position

3.6%

2/20/2023

24.51K→23.64K

Common stock, par value $0.01

Direct

M · Option Exercise

+682.00

Price / share

$81.79

Trade value

$55.78K

% of position

2.9%

2/20/2023

23.64K→24.32K

Common stock, par value $0.01

Direct

F · Tax Withholding

−299.00

Price / share

$81.79

Trade value

$24.46K

% of position

1.2%

2/20/2023

24.32K→24.02K

Total

Net shares

+1.31K

Net value

$107.55K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common stock, par value $0.01 Direct	2/20/2023	M · Option Exercise	+1.80K	$81.79	$147.39K	7.9%	22.70K	24.51K
Common stock, par value $0.01 Direct	2/20/2023	F · Tax Withholding	−870.00	$81.79	$71.16K	3.6%	24.51K	23.64K
Common stock, par value $0.01 Direct	2/20/2023	M · Option Exercise	+682.00	$81.79	$55.78K	2.9%	23.64K	24.32K
Common stock, par value $0.01 Direct	2/20/2023	F · Tax Withholding	−299.00	$81.79	$24.46K	1.2%	24.32K	24.02K
Total			+1.31K		$107.55K

Derivative Transactions4

Performance Units 2020

Direct

M · Option Exercise

Converts to

Common stock, par value $0.01

2.50K shares

−2.50K

Strike price

Held after

0.00

Exercisable

—

2/20/2023

Restricted Units 2020

Direct

M · Option Exercise

Converts to

Common stock, par value $0.01

624.00 shares

−624.00

Strike price

Held after

0.00

Exercisable

—

2/20/2023

Performance Units 2023

Direct

A · Award

Converts to

Common stock, par value $0.01

3.18K shares

+3.18K

Strike price

Held after

3.18K

Exercisable

—

2/20/2023

Restricted Units 2023

Direct

A · Award

Converts to

Common stock, par value $0.01

795.00 shares

+795.00

Strike price

Held after

795.00

Exercisable

—

2/20/2023

Security	Converts To	Date	Type	Shares	Exercisable	Held After
Performance Units 2020 Direct	Common stock, par value $0.012.50K shares	2/20/2023	M · Option Exercise	−2.50K	—	0.00
Restricted Units 2020 Direct	Common stock, par value $0.01624.00 shares	2/20/2023	M · Option Exercise	−624.00	—	0.00
Performance Units 2023 Direct	Common stock, par value $0.013.18K shares	2/20/2023	A · Award	+3.18K	—	3.18K
Restricted Units 2023 Direct	Common stock, par value $0.01795.00 shares	2/20/2023	A · Award	+795.00	—	795.00