Williams Companies
WMB · NYSE
Who owns WMB
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 33.9% of WMB’s shares.
- Vanguard Capital Management, LLC6.5%
- State Street Investment Management (US)5.9%
- BlackRock Institutional Trust Company, N.A.5.9%
- Vanguard Portfolio Management, LLC3.6%
- Next 6 largest institutions12.1%
- All other shareholders66.1%
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Capital Management, LLC | 79.85M | 6.53% |
| State Street Investment Management (US) | 72.02M | 5.89% |
| BlackRock Institutional Trust Company, N.A. | 71.61M | 5.86% |
| Vanguard Portfolio Management, LLC | 43.51M | 3.56% |
| Wellington Management Company, LLP | 33.10M | 2.71% |
| Managed Account Advisors LLC | 31.19M | 2.55% |
| Geode Capital Management, L.L.C. | 29.91M | 2.45% |
| Morgan Stanley Smith Barney LLC | 18.34M | 1.50% |
| ClearBridge Investments, LLC | 18.10M | 1.48% |
| Harvest Fund Advisors LLC | 17.34M | 1.42% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Total Stock Market Index Fund | 38.94M | 3.18% |
| Vanguard 500 Index Fund | 32.11M | 2.63% |
| State Street Energy Select Sector SPDR ETF | 20.89M | 1.71% |
| iShares Core S&P 500 ETF | 16.31M | 1.33% |
| Fidelity 500 Index Fund | 15.81M | 1.29% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $6.73M (12 trades) of WMB on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Wilson Terrance Lane | Sale | 2.00K | $135.70K |
| Wilson Terrance Lane | Sale | 2.00K | $151.12K |
| Wilson Terrance Lane | Gift | 100 | — |
| Wilson Terrance Lane | Gift | 1.90K | — |
| Wilson Terrance Lane | Sale | 10.20K | $763.78K |
| Wilson Terrance Lane | Sale | 2.80K | $209.54K |
| Wingo Robert R. | Tax withholding | 8.23K | $590.30K |
| Helms Lloyd W Jr | Award | 2.79K | $199.99K |
| Turner Robb E | Award | 2.79K | $199.99K |
| Wilson Terrance Lane | Sale | 2.00K | $141.30K |
Congressional trades
Disclosed by members of Congress over the last 12 months
| Member | Type | Amount | Traded |
|---|---|---|---|
| Alan ArmstrongSenator | Purchase | $15K–$50K | Aug 20, 2026 |
| Alan ArmstrongSenator | Purchase | $1K–$15K | Aug 19, 2026 |
| Alan ArmstrongSenator | Sale (Partial) | $5M–$25M | Jun 24, 2026 |
| Alan ArmstrongSenator | Sale (Full) | $250K–$500K | Jun 22, 2026 |
| Gil CisnerosHouse | Purchase | $1K–$15K | Feb 10, 2026 |
Short interest
Settled Sep 30, 2026
- Shares short
- 27.17M
- Days to cover
- 3.59
- % of shares outstanding
- 2.22%
- Average daily volume
- 7.56M
- Change since last report
- +13.1%
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