Williams Companies Inc
Ownership
Ownership Structure
Who owns Williams Companies Inc (WMB)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 99.4% of the shares are freely tradable; institutional investors hold 89.1%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 9.44 | 115,500,312 | +3.2 | 06/30/2026 |
| Vanguard Capital Management, LLC | 6.53 | 79,848,153 | +0.6 | 06/30/2026 |
| State Street Corp | 5.89 | 72,015,506 | -1.3 | 06/30/2026 |
| Bank of America Corp | 3.65 | 44,667,824 | +0.5 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 3.56 | 43,513,739 | +0.6 | 06/30/2026 |
| Wellington Management Company LLP | 2.71 | 33,097,208 | +43.4 | 06/30/2026 |
| Morgan Stanley - Brokerage Accounts | 2.60 | 31,813,505 | -5.7 | 06/30/2026 |
| Geode Capital Management, LLC | 2.45 | 29,911,265 | +1.1 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 3.17 | 38,820,566 | -0.1 | 09/30/2026 |
| Vanguard 500 Index Investor | 2.63 | 32,123,487 | -1.1 | 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.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Wilson Terrance Lane | SVP & General Counsel | 262,259 | 19,512,070 $ | Aug 14, 2026 | both |
| Wingo Robert R. | Executive Vice President | 48,343 | 3,596,719 $ | Aug 6, 2026 | direct |
| Turner Robb E | Director | 8,785 | 653,604 $ | Aug 5, 2026 | direct |
| Helms Lloyd W Jr | Director | 2,785 | 207,204 $ | Aug 5, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 1, 2026 | Wilson Terrance Lane | SVP & General Counsel | Sell | 2,000 | 67.85 | 135,700 |
| Sep 1, 2026 | Wilson Terrance Lane | SVP & General Counsel | Sell | 2,000 | 75.56 | 151,120 |
| Aug 14, 2026 | Wilson Terrance Lane | SVP & General Counsel | Other | 100 | 0.00 | – |
| Aug 14, 2026 | Wilson Terrance Lane | SVP & General Counsel | Other | 1,900 | 0.00 | – |
| Aug 14, 2026 | Wilson Terrance Lane | SVP & General Counsel | Sell | 10,200 | 74.88 | 763,776 |
| Aug 14, 2026 | Wilson Terrance Lane | SVP & General Counsel | Sell | 2,800 | 74.84 | 209,541 |
| Aug 6, 2026 | Wingo Robert R. | Executive Vice President | Other | 8,226 | 71.76 | 590,298 |
| Aug 5, 2026 | Helms Lloyd W Jr | Director | Other | 2,785 | 71.81 | 199,991 |
| Aug 5, 2026 | Turner Robb E | Director | Other | 2,785 | 71.81 | 199,991 |
| Aug 3, 2026 | Wilson Terrance Lane | SVP & General Counsel | Sell | 2,000 | 70.65 | 141,300 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: October 30, 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.