Williams Cos (WMB) Held by Superinvestors
WILLIAMS COS INC (WMB) is currently held by 6 superinvestors tracked by InsiderSet, with a combined reported market value of approximately $334.51M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Parnassus Endeavor Fund is currently the largest disclosed institutional shareholder of WMB tracked by InsiderSet, reporting ownership valued at approximately $147.41M in its September 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 $155.49M, representing an estimated gain of +5.49% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 100% of the total disclosed WMB value among the investors covered in this analysis. Major shareholders include Parnassus Endeavor Fund, AKO Capital, Dodge & Cox Stock Fund, 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.
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Parnassus Endeavor Fund | Parnassus Investments | 0.44% | 2,168,683 | $147,405,384 | $155,494,571 | +$8,089,187 | +5.49% |
| AKO Capital | Nicolai Tangen | 2.57% | 1,486,116 | $110,478,000 | $106,554,517 | -$3,923,483 | -3.55% |
| Dodge & Cox Stock Fund | V. D. Dodge, E. M. Cox | 0.04% | 944,450 | $70,210,413 | $67,717,065 | -$2,493,348 | -3.55% |
| Sequoia Financial Advisors | 0.02% | 56,563 | $4,204,873 | $4,055,567 | -$149,306 | -3.55% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 25,485 | $1,894,555 | $1,827,275 | -$67,281 | -3.55% |
| First Eagle U.S. Value | Jean-Marie Eveillard | 0.00% | 4,231 | $314,533 | $303,363 | -$11,170 | -3.55% |
Frequently asked questions about WMB
Who are the largest superinvestors holding WMB?
The largest superinvestors holding WMB in the latest SEC Form 13F filings include Parnassus Endeavor Fund, AKO Capital, Dodge & Cox Stock Fund, Sequoia Financial Advisors, and Renaissance Technologies LLC. InsiderSet ranks these superinvestors by their latest reported WMB position.
What does the WMB superinvestors page include?
This page tracks WMB positions reported by a curated group of notable institutional investors and fund managers through SEC Form 13F. WILLIAMS COS INC (WMB) on this page reflects disclosed 13F holdings among those superinvestors, not every institutional shareholder of the stock.
How many superinvestors hold WMB?
InsiderSet currently tracks 6 superinvestors reporting WMB holdings in the latest available 13F data. This is the curated set on this page, not the total number of institutions that own WMB.
How much WMB stock do superinvestors hold?
Superinvestors tracked by InsiderSet disclosed approximately $334.51M in WMB holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value, and it covers the curated superinvestors on this page rather than every institutional filer.
When were WMB superinvestor holdings last updated?
The latest WMB superinvestor holdings on InsiderSet are 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 holdings.
Are superinvestor WMB holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by these superinvestors as of the end of the reporting quarter. A superinvestor may have changed its WMB position after the reporting date.
Are superinvestors buying or selling WMB?
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 have superinvestor WMB holdings changed over time?
InsiderSet tracks WMB holdings among these superinvestors across multiple 13F reporting periods, so holder counts, reported value, and reported shares can be compared over time.