WMB Institutional Ownership & Shareholders
WILLIAMS COS INC (WMB) is currently held by 1,793 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $78.78B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of WMB tracked by InsiderSet, reporting ownership valued at approximately $8.59B in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $8.22B, representing an estimated loss of -4.24% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 47% of the total disclosed WMB value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Capital Management Llc, State Street Corp, and several other long-term asset managers with concentrated positions in WILLIAMS COS INC (WMB).
This page ranks the largest institutional WMB shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
1,793
Total Reported Value
$78.78B
Largest Holder
Blackrock, Inc.
Largest Position
$8.59B
Insider Transactions (90d)
10
Latest Filing Quarter
Q2 2026
New Institutional Positions
28
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.13% | 115,500,312 | $8,586,293,215 | $8,222,467,211 | -$363,826,004 | -4.24% | |
| Vanguard Capital Management Llc | 0.13% | 79,848,153 | $5,935,911,694 | $5,684,390,012 | -$251,521,682 | -4.24% | |
| State Street Corp | 0.16% | 72,015,506 | $5,353,632,716 | $5,126,783,872 | -$226,848,844 | -4.24% | |
| Bank Of America Corp | 0.21% | 44,667,824 | $3,320,606,042 | $3,179,902,391 | -$140,703,651 | -4.24% | |
| Vanguard Portfolio Management Llc | 0.15% | 43,513,739 | $3,234,811,357 | $3,097,743,079 | -$137,068,278 | -4.24% | |
| Wellington Management Group Llp | 0.42% | 33,097,208 | $2,460,446,443 | $2,356,190,238 | -$104,256,205 | -4.24% | |
| Morgan Stanley | 0.13% | 31,813,505 | $2,365,016,153 | $2,264,803,421 | -$100,212,732 | -4.24% | |
| Geode Capital Management, Llc | 0.12% | 29,911,265 | $2,213,938,883 | $2,129,382,955 | -$84,555,928 | -3.82% | |
| Clearbridge Investments, Llc | 1.49% | 24,212,067 | $1,799,925,036 | $1,723,657,050 | -$76,267,986 | -4.24% | |
| Jpmorgan Chase & Co | 0.09% | 21,379,796 | $1,604,767,558 | $1,522,027,677 | -$82,739,881 | -5.16% | |
| Invesco Ltd. | 0.11% | 19,289,385 | $1,433,972,876 | $1,373,211,318 | -$60,761,558 | -4.24% | |
| Deutsche Bank Ag\ | 0.38% | 17,615,045 | $1,309,502,446 | $1,254,015,054 | -$55,487,392 | -4.24% | |
| Price T Rowe Associates Inc | 0.11% | 14,897,067 | $1,107,450,000 | $1,060,522,200 | -$46,927,800 | -4.24% | |
| Northern Trust Corp | 0.12% | 13,335,794 | $991,382,927 | $949,375,175 | -$42,007,752 | -4.24% | |
| Royal Bank Of Canada | 0.17% | 13,308,209 | $989,333,000 | $947,411,399 | -$41,921,601 | -4.24% | |
| Norges Bank | 0.09% | 12,060,202 | $896,555,417 | $858,565,780 | -$37,989,637 | -4.24% | |
| Goldman Sachs Group Inc | 0.09% | 11,513,707 | $855,929,009 | $819,660,801 | -$36,268,208 | -4.24% | |
| Tortoise Capital Advisors, L.L.C. | 8.50% | 11,248,639 | $836,223,843 | $800,790,610 | -$35,433,233 | -4.24% | |
| Ubs Group Ag | 0.13% | 10,803,397 | $803,124,563 | $769,093,832 | -$34,030,731 | -4.24% | |
| Neuberger Berman Group Llc | 0.53% | 11,796,870 | $709,110,644 | $839,819,175 | +$130,708,531 | +18.43% | |
| Raymond James Financial Inc | 0.18% | 8,937,003 | $664,376,884 | $636,225,244 | -$28,151,640 | -4.24% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.14% | 8,921,513 | $649,307,717 | $635,122,510 | -$14,185,207 | -2.18% | |
| Dimensional Fund Advisors Lp | 0.12% | 8,538,140 | $634,762,988 | $607,830,187 | -$26,932,801 | -4.24% | |
| Legal & General Group Plc | 0.12% | 8,018,260 | $596,077,450 | $570,819,929 | -$25,257,521 | -4.24% | |
| Bank Of New York Mellon Corp | 0.10% | 7,789,163 | $579,046,311 | $554,510,514 | -$24,535,797 | -4.24% | |
| Charles Schwab Investment Management Inc | 0.08% | 7,681,072 | $571,010,893 | $546,815,516 | -$24,195,377 | -4.24% | |
| Wells Fargo & Company/Mn | 0.10% | 7,550,459 | $561,301,086 | $537,517,176 | -$23,783,910 | -4.24% | |
| American Century Companies Inc | 0.24% | 7,222,977 | $536,956,239 | $514,203,733 | -$22,752,506 | -4.24% | |
| Nuveen, Llc | 0.12% | 7,013,575 | $521,389,102 | $499,296,404 | -$22,092,698 | -4.24% | |
| Cohen & Steers, Inc. | 0.82% | 6,976,340 | $518,621,000 | $496,645,645 | -$21,975,355 | -4.24% | |
| Vanguard Fiduciary Trust Co | 0.11% | 6,866,768 | $510,475,533 | $488,845,214 | -$21,630,319 | -4.24% | |
| Bahl & Gaynor Inc | 2.32% | 6,771,549 | $503,396,921 | $482,066,573 | -$21,330,348 | -4.24% | |
| Kayne Anderson Capital Advisors Lp | 9.81% | 6,729,960 | $500,305,227 | $479,105,852 | -$21,199,375 | -4.24% | |
| Barclays Plc | 0.15% | 6,524,467 | $485,028,877 | $464,476,806 | -$20,552,071 | -4.24% | |
| Victory Capital Management Inc | 0.27% | 6,488,650 | $482,367,067 | $461,926,994 | -$20,440,074 | -4.24% | |
| Ameriprise Financial Inc | 0.08% | 5,270,442 | $391,601,483 | $375,202,766 | -$16,398,717 | -4.19% | |
| Westwood Holdings Group Inc | 2.76% | 4,919,835 | $365,740,515 | $350,243,054 | -$15,497,461 | -4.24% | |
| Envestnet Asset Management Inc | 0.09% | 4,917,318 | $365,553,408 | $350,063,868 | -$15,489,540 | -4.24% | |
| Brookfield Corp | 0.47% | 4,913,845 | $365,295,251 | $349,816,626 | -$15,478,625 | -4.24% | |
| Massachusetts Financial Services Co | 0.11% | 4,695,435 | $354,183,882 | $334,268,018 | -$19,915,864 | -5.62% | |
| Mirae Asset Global Etfs Holdings Ltd. | 0.40% | 4,543,928 | $337,804,064 | $323,482,234 | -$14,321,830 | -4.24% | |
| Fmr Llc | 0.01% | 4,439,145 | $330,006,123 | $316,022,733 | -$13,983,390 | -4.24% | |
| Ontario Teachers Pension Plan Board | 2.09% | 4,426,879 | $329,094,185 | $315,149,516 | -$13,944,669 | -4.24% | |
| Stifel Financial Corp | 0.24% | 3,905,784 | $290,357,027 | $278,052,763 | -$12,304,264 | -4.24% | |
| 1832 Asset Management L.P. | 0.36% | 3,903,896 | $290,215,629 | $277,918,356 | -$12,297,273 | -4.24% | |
| Artisan Partners Limited Partnership | 0.47% | 3,853,615 | $286,477,739 | $274,338,852 | -$12,138,887 | -4.24% | |
| Pictet Asset Management Holding Sa | 0.27% | 4,139,269 | $281,352,294 | $294,674,560 | +$13,322,266 | +4.74% | |
| Mackenzie Financial Corp | 0.29% | 3,935,678 | $267,508,034 | $280,180,917 | +$12,672,883 | +4.74% | |
| Swiss National Bank | 0.13% | 3,449,000 | $256,398,660 | $245,534,310 | -$10,864,350 | -4.24% | |
| Bank Of Montreal | 0.09% | 3,375,356 | $250,923,970 | $240,291,594 | -$10,632,376 | -4.24% |
Frequently asked questions about WMB
Who are the largest institutional holders of WMB?
The largest institutional holders of WMB reported in the latest SEC Form 13F filings include Blackrock, Inc., Vanguard Capital Management Llc, State Street Corp, Bank Of America Corp, and Vanguard Portfolio Management Llc. InsiderSet ranks institutional holders by their latest reported WMB position.
What is WMB institutional ownership?
This page tracks WMB positions reported by institutional investment managers through SEC Form 13F. WILLIAMS COS INC (WMB) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own WMB?
InsiderSet currently tracks 1,793 institutional managers reporting WMB holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of WMB shareholders.
How much WMB stock do institutions own?
Institutional investment managers disclosed approximately $78.78B in WMB holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was WMB institutional ownership last updated?
The latest WMB institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional WMB holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its WMB position after the reporting date.
Are institutions buying or selling WMB?
Institutional buying and selling can be analyzed by comparing WMB positions across consecutive 13F reporting periods. InsiderSet's WMB Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View WMB ownership changes.
How has WMB institutional ownership changed over time?
InsiderSet tracks WMB institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.