WILLIAMS COS INC (WMB) Institutional Shareholders
WILLIAMS COS INC (WMB) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $72.34B in WMB holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of WMB tracked by InsiderSet, reporting ownership valued at approximately $8.14B in its March 31, 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 $8.00B, representing an estimated loss of -1.74% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 48% 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
1,797
Total Reported Value
$72.34B
Largest Holder
Blackrock, Inc.
Largest Position
$8.14B
Insider Transactions (90d)
6
Latest Filing Quarter
Q2 2026
New Institutional Positions
46
Funds Exiting Positions
1
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.14% | 111,870,176 | $8,141,911,384 | $7,999,836,286 | -$142,075,098 | -1.74% | |
| Vanguard Capital Management Llc | 0.14% | 79,356,001 | $5,775,529,752 | $5,674,747,632 | -$100,782,120 | -1.74% | |
| State Street Corp | 0.18% | 72,988,408 | $5,312,096,334 | $5,219,401,056 | -$92,695,278 | -1.74% | |
| Bank Of America Corp | 0.24% | 44,461,236 | $3,235,888,741 | $3,179,422,986 | -$56,465,755 | -1.74% | |
| Vanguard Portfolio Management Llc | 0.17% | 43,269,040 | $3,149,120,731 | $3,094,169,050 | -$54,951,681 | -1.74% | |
| Morgan Stanley | 0.15% | 33,740,119 | $2,455,606,110 | $2,412,755,910 | -$42,850,200 | -1.74% | |
| Geode Capital Management, Llc | 0.13% | 29,593,870 | $2,144,797,923 | $2,116,257,644 | -$28,540,279 | -1.33% | |
| Clearbridge Investments, Llc | 1.47% | 23,238,857 | $1,691,323,992 | $1,661,810,664 | -$29,513,328 | -1.74% | |
| Wellington Management Group Llp | 0.31% | 23,083,262 | $1,679,999,809 | $1,650,684,066 | -$29,315,743 | -1.74% | |
| Deutsche Bank Ag\ | 0.46% | 18,968,223 | $1,380,507,271 | $1,356,417,627 | -$24,089,644 | -1.74% | |
| Invesco Ltd. | 0.20% | 18,079,759 | $1,315,844,894 | $1,292,883,566 | -$22,961,328 | -1.74% | |
| Blackstone Inc. | 5.13% | 17,074,392 | $1,242,674,250 | $1,220,989,772 | -$21,684,478 | -1.74% | |
| Northern Trust Corp | 0.13% | 13,423,842 | $976,987,220 | $959,938,941 | -$17,048,279 | -1.74% | |
| Royal Bank Of Canada | 0.17% | 12,128,639 | $882,725,000 | $867,318,975 | -$15,406,025 | -1.75% | |
| Amundi | 0.23% | 11,710,478 | $852,288,589 | $837,416,282 | -$14,872,307 | -1.74% | |
| Neuberger Berman Group Llc | 0.64% | 11,511,441 | $838,051,735 | $823,183,146 | -$14,868,589 | -1.77% | |
| Tortoise Capital Advisors, L.L.C. | 8.72% | 11,499,134 | $836,906,991 | $822,303,072 | -$14,603,919 | -1.74% | |
| Goldman Sachs Group Inc | 0.10% | 10,699,584 | $778,715,721 | $765,127,252 | -$13,588,469 | -1.74% | |
| Legal & General Group Plc | 0.16% | 9,228,073 | $671,619,153 | $659,899,500 | -$11,719,653 | -1.74% | |
| Raymond James Financial Inc | 0.21% | 9,113,465 | $662,551,426 | $651,703,882 | -$10,847,544 | -1.64% | |
| Ubs Group Ag | 0.12% | 9,047,346 | $658,465,871 | $646,975,712 | -$11,490,159 | -1.74% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.14% | 8,921,513 | $649,307,717 | $637,977,395 | -$11,330,322 | -1.74% | |
| Dimensional Fund Advisors Lp | 0.13% | 8,555,932 | $622,698,272 | $611,834,697 | -$10,863,575 | -1.74% | |
| Bank Of New York Mellon Corp | 0.11% | 8,048,647 | $585,780,505 | $575,558,747 | -$10,221,758 | -1.74% | |
| Charles Schwab Investment Management Inc | 0.08% | 7,615,946 | $554,288,550 | $544,616,298 | -$9,672,252 | -1.74% | |
| Nuveen, Llc | 0.14% | 7,039,221 | $512,314,488 | $503,374,694 | -$8,939,794 | -1.74% | |
| Vanguard Fiduciary Trust Co | 0.13% | 6,882,935 | $500,940,009 | $492,198,682 | -$8,741,327 | -1.74% | |
| Bahl & Gaynor Inc | 2.52% | 6,859,866 | $499,261,036 | $490,549,018 | -$8,712,018 | -1.74% | |
| Kayne Anderson Capital Advisors Lp | 9.35% | 6,703,243 | $487,862,026 | $479,348,907 | -$8,513,119 | -1.74% | |
| American Century Companies Inc | 0.24% | 6,456,552 | $469,907,887 | $461,708,034 | -$8,199,853 | -1.74% | |
| Wells Fargo & Company/Mn | 0.09% | 6,355,450 | $462,549,642 | $454,478,230 | -$8,071,412 | -1.74% | |
| Ameriprise Financial Inc | 0.10% | 5,973,828 | $434,769,872 | $427,188,440 | -$7,581,432 | -1.74% | |
| Brookfield Corp | 0.51% | 5,187,832 | $377,570,444 | $370,981,866 | -$6,588,578 | -1.74% | |
| Envestnet Asset Management Inc | 0.09% | 4,917,318 | $365,553,408 | $351,637,410 | -$13,915,998 | -3.81% | |
| Massachusetts Financial Services Co | 0.11% | 4,695,435 | $354,183,882 | $335,770,557 | -$18,413,325 | -5.20% | |
| Westwood Holdings Group Inc | 2.49% | 4,701,198 | $342,153,158 | $336,182,669 | -$5,970,489 | -1.74% | |
| Artisan Partners Limited Partnership | 0.55% | 4,621,865 | $336,379,335 | $330,509,566 | -$5,869,769 | -1.74% | |
| Victory Capital Management Inc | 0.21% | 4,580,409 | $333,362,805 | $327,545,048 | -$5,817,757 | -1.75% | |
| Fmr Llc | 0.02% | 4,487,616 | $326,608,697 | $320,909,420 | -$5,699,277 | -1.74% | |
| Mackenzie Financial Corp | 0.38% | 4,327,267 | $314,938,492 | $309,442,863 | -$5,495,629 | -1.74% | |
| Mirae Asset Global Etfs Holdings Ltd. | 0.42% | 4,292,138 | $312,378,356 | $306,930,788 | -$5,447,568 | -1.74% | |
| Pictet Asset Management Holding Sa | 0.29% | 4,105,616 | $305,218,084 | $293,592,600 | -$11,625,484 | -3.81% | |
| Qube Research & Technologies Ltd | 0.40% | 3,845,078 | $279,844,777 | $274,961,528 | -$4,883,249 | -1.74% | |
| Stifel Financial Corp | 0.25% | 3,772,490 | $274,562,214 | $269,770,760 | -$4,791,454 | -1.75% | |
| Barclays Plc | 0.10% | 3,691,925 | $268,698,302 | $264,009,557 | -$4,688,745 | -1.74% | |
| Swiss National Bank | 0.15% | 3,584,000 | $260,843,520 | $256,291,840 | -$4,551,680 | -1.74% | |
| National Pension Service | 0.18% | 3,217,009 | $234,133,915 | $230,048,314 | -$4,085,601 | -1.74% | |
| 1832 Asset Management L.P. | 0.31% | 3,190,511 | $232,205,391 | $228,153,442 | -$4,051,949 | -1.74% | |
| Mitsubishi Ufj Asset Management Co., Ltd. | 0.15% | 3,019,701 | $219,773,839 | $215,938,819 | -$3,835,020 | -1.74% | |
| Bank Of Montreal | 0.09% | 2,914,185 | $212,094,360 | $208,393,369 | -$3,700,991 | -1.74% |
Frequently asked questions about WMB
Who owns the most WMB stock?
The largest holders of WMB are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for WILLIAMS COS INC (WMB).
Is WMB widely held by superinvestors?
Many widely followed stocks like WMB appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly WMB is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.