ONEOK Inc
Ownership
Ownership Structure
Who owns ONEOK Inc (OKE)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 99.7% of the shares are freely tradable; institutional investors hold 83.5%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 9.42 | 59,388,699 | +3.9 | 03/31/2026 |
| State Street Corp | 6.60 | 41,574,381 | +8.1 | 03/31/2026 |
| Vanguard Capital Management, LLC | 6.49 | 40,867,532 | +0.0 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 4.89 | 30,817,918 | +0.0 | 03/31/2026 |
| Arnhold & S. Bleichroeder Advisers, LLC | 3.76 | 23,669,654 | +102.7 | 06/30/2026 |
| Charles Schwab Investment Management Inc | 2.92 | 18,368,622 | -18.8 | 03/31/2026 |
| Capital Research & Mgmt Co - Division 3 | 2.73 | 17,204,063 | +31.2 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Cushing Midstream Strategy | 19.57 | 123,304,647 | +2.3 | 06/30/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 3.18 | 20,063,136 | +0.3 | 07/31/2026 |
| Schwab US Dividend Equity ETF™ | 2.73 | 17,208,096 | +0.3 | 08/29/2026 |
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: September 17, 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.