The Williams Companies, Inc. (WMB) Ownership
WMB ownership summary
as of October 18, 2026- Institutions
- 91.6% of shares outstanding
- Insiders
- 0.45% of shares outstanding
- Shares outstanding
- 1.22B
- Float
- 1.22B shares available to trade
- Short interest
- 2.51% 27.2M shares short
- Days to cover
- 3.36 short interest up 3.9% vs prior month
- Institutions 91.59%
- Insiders 0.45%
- Other investors 7.97%
WMB top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 9.44% | 115.5M | $8.23B | +3.6M (+3.2%) | June 30, 2026 |
| 2 | Vanguard Capital Management, LLC | 6.53% | 79.8M | $5.69B | +492,152 (+0.6%) | June 30, 2026 |
| 3 | State Street Corp | 5.89% | 72.0M | $5.13B | −972,902 (−1.3%) | June 30, 2026 |
| 4 | Bank of America Corp | 3.65% | 44.7M | $3.18B | +206,588 (+0.5%) | June 30, 2026 |
| 5 | Vanguard Portfolio Management, LLC | 3.56% | 43.5M | $3.10B | +244,699 (+0.6%) | June 30, 2026 |
| 6 | Wellington Management Company LLP | 2.71% | 33.1M | $2.36B | +10.0M (+43.4%) | June 30, 2026 |
| 7 | Morgan Stanley - Brokerage Accounts | 2.60% | 31.8M | $2.27B | −1.9M (−5.7%) | June 30, 2026 |
| 8 | Geode Capital Management, LLC | 2.45% | 29.9M | $2.13B | +317,395 (+1.1%) | June 30, 2026 |
| 9 | ClearBridge Advisors, LLC | 1.98% | 24.2M | $1.73B | +973,210 (+4.2%) | June 30, 2026 |
| 10 | JPMorgan Chase & Co | 1.75% | 21.4M | $1.52B | −678,569 (−3.1%) | June 30, 2026 |
| 11 | Amvescap Plc. | 1.58% | 19.3M | $1.37B | +1.2M (+6.7%) | June 30, 2026 |
| 12 | Deutsche Bank AG | 1.44% | 17.6M | $1.26B | −1.4M (−7.1%) | June 30, 2026 |
| 13 | Blackstone Inc | 1.42% | 17.3M | $1.24B | +266,607 (+1.6%) | June 30, 2026 |
| 14 | T. Rowe Price Associates, Inc. | 1.22% | 14.9M | $1.06B | −1.0M (−6.5%) | June 30, 2026 |
| 15 | Northern Trust Corp | 1.09% | 13.3M | $950.6M | −88,048 (−0.7%) | June 30, 2026 |
| 16 | Royal Bank of Canada | 1.09% | 13.3M | $948.6M | +1.2M (+9.7%) | June 30, 2026 |
| 17 | NORGES BANK | 0.99% | 12.1M | $859.7M | −379,475 (−3.1%) | June 30, 2026 |
| 18 | Neuberger Berman Group LLC | 0.94% | 11.5M | $822.9M | +33,135 (+0.3%) | June 30, 2026 |
| 19 | The Goldman Sachs Group Inc | 0.94% | 11.5M | $820.7M | +814,123 (+7.6%) | June 30, 2026 |
| 20 | Tortoise Midstream Energy Fund, Inc. | 0.92% | 11.2M | $801.8M | −250,495 (−2.2%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 12 holders added 19.4M shares and 8 cut 6.7M.
WMB top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Vanguard MStar Total Stk Mkt Idx Invest | 3.18% | 38.9M | $2.77B | −74,076 (−0.2%) | August 31, 2026 |
| 2 | Vanguard 500 Index Investor | 2.63% | 32.1M | $2.29B | −368,040 (−1.1%) | September 30, 2026 |
| 3 | State Street®EngySelSectSPDR®ETF | 2.02% | 24.8M | $1.76B | −181,071 (−0.7%) | September 30, 2026 |
| 4 | iShares Core S&P 500 ETF | 1.33% | 16.3M | $1.16B | −26,233 (−0.2%) | September 30, 2026 |
| 5 | Fidelity 500 Index | 1.30% | 15.9M | $1.13B | +60,978 (+0.4%) | August 31, 2026 |
| 6 | State Street® SPDR® S&P 500® ETF | 1.23% | 15.0M | $1.07B | — | September 30, 2026 |
| 7 | Vanguard MStar Mid Cap Index Instl | 1.07% | 13.1M | $933.2M | −132,830 (−1.0%) | September 30, 2026 |
| 8 | Vanguard MStar Value Index Investor | 0.95% | 11.6M | $830.1M | −46,880 (−0.4%) | September 30, 2026 |
| 9 | Vanguard Equity-Income Inv | 0.66% | 8.0M | $572.0M | +8.0M (0.0%) | June 30, 2026 |
| 10 | Vanguard Institutional Index I | 0.53% | 6.5M | $461.2M | −67,589 (−1.0%) | September 30, 2026 |
| 11 | Vanguard Energy ETF | 0.48% | 5.9M | $421.4M | −26,372 (−0.4%) | September 30, 2026 |
| 12 | ClearBridge Dividend Strategy A | 0.44% | 5.4M | $382.7M | — | September 30, 2026 |
| 13 | Vanguard High Dividend Yield ETF | 0.41% | 5.0M | $353.5M | +13,667 (+0.3%) | September 30, 2026 |
| 14 | Tortoise Energy Infrastructure TR Ins | 0.37% | 4.5M | $322.6M | +27,379 (+0.6%) | September 30, 2026 |
| 15 | Hartford Dividend and Growth Y | 0.37% | 4.5M | $321.0M | −28,959 (−0.6%) | August 31, 2026 |
| 16 | Global X MLP & Energy Infrastructure ETF | 0.37% | 4.5M | $319.9M | −3,692 (−0.1%) | September 30, 2026 |
| 17 | iShares Global Infrastructure ETF | 0.36% | 4.4M | $310.4M | −273,705 (−5.9%) | September 30, 2026 |
| 18 | Vanguard MStar Mid Cap Value ETF | 0.31% | 3.8M | $272.1M | −140,962 (−3.6%) | September 30, 2026 |
| 19 | Vanguard Energy Opportunities Inv | 0.31% | 3.8M | $269.0M | −95,868 (−2.5%) | June 30, 2026 |
| 20 | MFS Growth B | 0.28% | 3.4M | $240.3M | −64,197 (−1.9%) | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
WMB insider transactions
latest 17| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-01 | Terrance Lane Wilson | Sell | $71.75 | 2,000 | $143,500 |
| 2026-03-13 | Payvand Fazel | Sell | $73.15 | 2,898 | $211,989 |
| 2026-03-11 | Todd J Rinke | Sell | $74.39 | 7,364 | $547,808 |
| 2026-03-02 | Terrance Lane Wilson | Sell | $75.24 | 2,000 | $150,480 |
| 2026-02-26 | Mary A Hausman | Sell | $74.91 | 10,107 | $757,115 |
| 2026-02-24 | Terrance Lane Wilson | Sell | $72.92 | 27,000 | $2.0M |
| 2026-02-10 | Gilbert Ray Cisneros, Jr. | Buy | $68.82 | — | — |
| 2026-02-02 | Terrance Lane Wilson | Sell | $66.39 | 2,000 | $132,780 |
| 2026-01-09 | Gilbert Ray Cisneros, Jr. | Sell | $60.31 | — | — |
| 2025-12-09 | Terrance Lane Wilson | Sell | $61.90 | 2,000 | $123,800 |
| 2025-11-12 | Terrance Lane Wilson | Sell | $60.53 | 4,000 | $242,120 |
| 2025-09-04 | Terrance Lane Wilson | Sell | $57.62 | 2,000 | $115,240 |
| 2025-08-11 | Larry C Larsen | Sell | $58.47 | 4,500 | $263,115 |
| 2025-08-01 | Terrance Lane Wilson | Sell | $59.68 | 2,000 | $119,360 |
| 2025-07-11 | Ritchie Torres | Sell | $58.25 | — | — |
| 2025-07-10 | Lisa C. McClain | Sell | $57.80 | — | — |
| 2025-07-01 | Terrance Lane Wilson | Sell | $62.70 | 2,000 | $125,400 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
WMB shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns WMB
Institutional investors own 91.6% of Williams's shares and insiders 0.45%. The largest holder is BlackRock Inc with 9.44% of the shares (115.5M), as of June 30, 2026. Among the top 20 institutions, 12 added shares and 8 reduced their stake in the latest filings. Short interest is 2.51% of the float, or 3.36 days of average trading volume. The share count rose 62.5% since 2014.
Related: WMB analyst forecast, WMB key metrics, WMB dividend history. See the WMB stock overview for the latest quote and news.
WMB ownership FAQ
Who owns the most Williams stock?
The largest shareholders of Williams are BlackRock Inc (9.44%), Vanguard Capital Management, LLC (6.53%), State Street Corp (5.89%), Bank of America Corp (3.65%), Vanguard Portfolio Management, LLC (3.56%).
What percentage of Williams is owned by institutions?
Institutions hold 91.6% of Williams's shares outstanding; insiders hold 0.45%.
Which funds own Williams?
The largest fund holders of Williams are Vanguard MStar Total Stk Mkt Idx Invest (3.18%), Vanguard 500 Index Investor (2.63%), State Street®EngySelSectSPDR®ETF (2.02%), iShares Core S&P 500 ETF (1.33%), Fidelity 500 Index (1.30%).
What is Williams's short interest?
27.2M shares of Williams were sold short, 2.51% of the float; at the average daily volume it would take 3.36 days to cover.
Are insiders buying or selling Williams?
Of the latest 17 reported insider transactions in Williams (since July 1, 2025), 1 were purchases and 16 were sales.
How many shares of Williams are outstanding?
Williams has 1.22B shares outstanding, of which 1.22B are in the public float.