One Gas Inc
Ownership
Ownership Structure
Who owns One Gas Inc (OGS)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 98.9% of the shares are freely tradable; institutional investors hold 94.3%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 14.48 | 9,099,077 | -0.2 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 5.91 | 3,716,434 | +3.5 | 06/30/2026 |
| American Century Companies Inc | 5.64 | 3,543,229 | +5.0 | 06/30/2026 |
| State Street Corp | 5.20 | 3,268,798 | +7.6 | 06/30/2026 |
| Vanguard Capital Management, LLC | 4.49 | 2,821,399 | +1.6 | 06/30/2026 |
| Geode Capital Management, LLC | 3.11 | 1,957,673 | +23.8 | 06/30/2026 |
| T. Rowe Price Investment Management,Inc. | 2.96 | 1,858,002 | -0.2 | 06/30/2026 |
| Energy Income Partners, LLC | 2.81 | 1,763,956 | +32.5 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Mid-Cap ETF | 3.56 | 2,236,779 | +0.0 | 09/30/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 3.19 | 2,002,976 | +0.4 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: November 2, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.