๐Ÿ•ต๏ธ One Gas, Inc. ($OGS)

SEC insider & ownership activity, last 12 months ยท CIK 1587732 ยท every row links its SEC filing

Over the last 12 months insiders sold $396K with no open-market buying against it. Michael G. Hutchinson sold $237K in discretionary trades (Dec). No red-flag 8-Ks in the window.

Oct 2025: net +$0 Nov 2025: net +$0 Dec 2025: net -$237K Jan 2026: net +$0 Feb 2026: net -$86K Mar 2026: net -$73K Apr 2026: net +$0 May 2026: net +$0 Jun 2026: net +$0 Jul 2026: net +$0 Aug 2026: net +$0 Sep 2026: net +$0
Monthly net open-market insider flow, last 12 months (up = net buying)

Insider flow

0 buyers, $0 (0 lots) ยท 3 sellers, $396K (3 lots)

InsiderBuysBoughtSellsSoldLast
Michael G. Hutchinson0โ€“ 1$237KDec 4, 2025
Brian F. Brumfield0โ€“ 1$86KFeb 24, 2026
Eduardo A. Rodriguez0โ€“ 1$73KMar 6, 2026

5%+ holders

HolderStakeClassScheduleEvent
BlackRock, Inc. 12.8% 13GApr 23, 2025 filing โ†—
Vanguard Portfolio Management 5.8% 13GApr 29, 2026 filing โ†—
American Century Investment Management, Inc. 5.4% 13GMay 1, 2026 filing โ†—
American Century Companies, Inc. 5.4% 13GMay 1, 2026 filing โ†—
Stowers Institute for Medical Research 5.4% 13GMay 1, 2026 filing โ†—
State Street Corporation 5.2% 13GAug 7, 2026 filing โ†—
Vanguard Capital Management 5.2% 13GApr 30, 2026 filing โ†—

Planned insider sales (Form 144)

SellerPlannedApprox. sale date
Brian F. Brumfield$86KFeb 24, 2026 filing โ†—
Michael G. Hutchinson$238KDec 4, 2025 filing โ†—

Material events (8-K)

ItemEvent date
Reg FD disclosure (7.01)Sep 8, 2026 filing โ†—
Financial Statements and Exhibits (9.01)Sep 8, 2026 filing โ†—
Material agreement (1.01)Aug 11, 2026 filing โ†—
New financial obligation (2.03)Aug 11, 2026 filing โ†—
Financial Statements and Exhibits (9.01)Aug 11, 2026 filing โ†—
Earnings (2.02)Aug 4, 2026 filing โ†—
Reg FD disclosure (7.01)Aug 4, 2026 filing โ†—
Other events (8.01)Aug 4, 2026 filing โ†—
Financial Statements and Exhibits (9.01)Aug 4, 2026 filing โ†—
Charter/bylaw changes (5.03)Aug 4, 2026 filing โ†—
Financial Statements and Exhibits (9.01)Aug 4, 2026 filing โ†—
Officer/director changes (5.02)Jul 13, 2026 filing โ†—
Reg FD disclosure (7.01)Jul 13, 2026 filing โ†—
Financial Statements and Exhibits (9.01)Jul 13, 2026 filing โ†—
Reg FD disclosure (7.01)Jul 8, 2026 filing โ†—
Financial Statements and Exhibits (9.01)Jul 8, 2026 filing โ†—
Reg FD disclosure (7.01)May 26, 2026 filing โ†—
Financial Statements and Exhibits (9.01)May 26, 2026 filing โ†—
Shareholder vote (5.07)May 21, 2026 filing โ†—
Reg FD disclosure (7.01)May 12, 2026 filing โ†—
Financial Statements and Exhibits (9.01)May 12, 2026 filing โ†—
Earnings (2.02)May 4, 2026 filing โ†—
Reg FD disclosure (7.01)May 4, 2026 filing โ†—
Other events (8.01)May 4, 2026 filing โ†—
Financial Statements and Exhibits (9.01)May 4, 2026 filing โ†—
Reg FD disclosure (7.01)Apr 7, 2026 filing โ†—
Financial Statements and Exhibits (9.01)Apr 7, 2026 filing โ†—
Reg FD disclosure (7.01)Feb 24, 2026 filing โ†—
Financial Statements and Exhibits (9.01)Feb 24, 2026 filing โ†—
Material agreement (1.01)Feb 23, 2026 filing โ†—