SIGHINOLFI CHRISTOPHER P.

PrivateCIK: 2003976
Location

TULSA, OK

SIGHINOLFI CHRISTOPHER P. (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
InsiderSIGHINOLFI CHRISTOPHER P.CIK 2003976
IssuerONE GAS, INC.CIK 1587732
Officer· See Remarks
Since Feb 2026
+8.85K
Net shares
Net buyer
$22.8K
Total sold
0
Open market trades
0B · 0S
8
Total transactions
11.26K acquired · 2.41K disposed
Non-Derivative Transactions4

Common stock, par value $0.01

Direct
M · Option Exercise

Shares

+597.29

Price / share

$86.04

Trade value

$51.39K

% of position

14.5%
2/14/2026
4.12K4.72K

Common stock, par value $0.01

Direct
F · Tax Withholding

Shares

203.98

Price / share

$86.04

Trade value

$17.55K

% of position

4.3%
2/14/2026
4.72K4.52K

Common stock, par value $0.01

Direct
M · Option Exercise

Shares

+1.36K

Price / share

Trade value

% of position

48.2%
2/16/2026
2.82K4.19K

Common stock, par value $0.01

Direct
F · Tax Withholding

Shares

61.53

Price / share

$86.04

Trade value

$5.29K

% of position

1.5%
2/16/2026
4.19K4.12K
Total

Net shares

+1.69K

Net value

$28.55K

Derivative Transactions4

Restricted Units 2023

Direct
M · Option Exercise
Converts to

Common stock, par value $0.01

535.00 shares

Shares

535.00

Strike price

Held after

0.00

Exercisable

2/14/2026

Performance Units 2023

Direct
M · Option Exercise
Converts to

Common stock, par value $0.01

1.60K shares

Shares

1.60K

Strike price

Held after

0.00

Exercisable

2/16/2026

Performance Units 2026

Direct
A · Award
Converts to

Common stock, par value $0.01

5.58K shares

Shares

+5.58K

Strike price

Held after

5.58K

Exercisable

2/16/2026

Restricted Units 2026

Direct
A · Award
Converts to

Common stock, par value $0.01

3.72K shares

Shares

+3.72K

Strike price

Held after

3.72K

Exercisable

2/16/2026
Non-Derivative Holdings (Post-Transaction)1

Common stock, par value $0.01

Indirect
Shares owned929.79
Total
929.79 indirect929.79
Derivative Holdings (Post-Transaction)0
No derivative holdings reported
SIGHINOLFI CHRISTOPHER P. — Insider Transaction (Form 4) Filed Feb 19, 2026 | Finecho