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Of the 16 tracked institutions holding WMB, 10 have a 3-year clone track record — 8 of them beat the S&P. Average holder's clone alpha: +2.9pt. It's a gauge of who owns the name, not just how many.
Among the 16 tracked institutional investors we monitor, WMB (WILLIAMS COS INC) is held with a combined value of $26.63B across 383,835,816 shares. The largest holder is BlackRock, Inc. with a position worth $8.59B (0.13% of their portfolio). RENAISSANCE TECHNOLOGIES LLC opened a new position in the most recent quarter. 7 funds increased their holdings. 8 funds reduced their position.
Total Institutional Value
$26.63B
Total Shares Held
383,835,816
Institutional Holders
16
% of Shares Outstanding
31.4%
of 1.22B shares · SEC 2026-07-30
Days to Cover
3.9-8.9%
24.11M shares short · FINRA 2026-08-14
Tracked 13F institutions hold 31.4% of WMB's shares outstanding. This is a floor: 13F filings arrive on a ~45-day lag and we track only a subset of institutional filers, so true institutional ownership is higher. Shares-outstanding is the latest SEC cover-page figure (as of 2026-07-30), not a live float.
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
0
$0
6
$1.56M
Total Transactions
6
Last 12 months
| Date | Insider | Code | Type | Shares | Value |
|---|---|---|---|---|---|
| Sep 1, 2026 | Terrance Lane Wilson | S | Sale | 2,000 | $151.12K |
| Aug 14, 2026 | Terrance Lane Wilson | S | Sale | 2,800 | $209.54K |
| Aug 14, 2026 | Terrance Lane Wilson | S | Sale | 10,200 | $763.78K |
| Aug 3, 2026 | Terrance Lane Wilson | S | Sale | 2,000 | $141.30K |
| Jul 1, 2026 | Terrance Lane Wilson | S | Sale | 2,000 | $148.32K |
| Jun 1, 2026 | Terrance Lane Wilson | S | Sale | 2,000 | $142.60K |
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | BlackRock, Inc. | $8.59B | 0.13% | +3.2% |
| 2 | VANGUARD GROUP INC | $8.05B | 0.12% | +0.7% |
| 3 | STATE STREET CORP | $5.35B | 0.16% | -1.3% |
| 4 | WELLINGTON MANAGEMENT GROUP LLP | $2.46B | 0.42% | +43.4% |
| 5 | PRICE T ROWE ASSOCIATES INC /MD/ | $1.11B | 0.11% | -6.5% |
| 6 | FMR LLC | $330.01M | 0.01% | -1.1% |
| 7 | CITADEL ADVISORS LLC | $194.93M | 0.11% | +11.1% |
| 8 | Point72 Asset Management, L.P. | $187.97M | 0.29% | +4.5% |
| 9 | AKO CAPITAL LLP | $110.48M | 2.57% | -16.3% |
| 10 | MILLENNIUM MANAGEMENT LLC | $109.36M | 0.07% | -29.6% |
| Member | Type | Date |
|---|---|---|
| Alan Armstrong | Sell | Jun 24, 2026 |
| Alan Armstrong | Sell | Jun 22, 2026 |
| Gilbert Cisneros | Buy | Feb 10, 2026 |
| Ritchie John Torres | Sell |
As of the latest SEC 13F filings, BlackRock, Inc. is the largest institutional holder of WMB with a position worth $8.59B, representing 0.13% of their portfolio. In total, 16 institutional investors hold WMB with a combined value of $26.63B.
In the most recent quarter, 1 fund opened a new position in WMB. Additionally, 7 increased their holdings and 8 reduced their positions.
Institutional investors hold $26.63B worth of WMB stock across 16 positions. The largest institutional holder is BlackRock, Inc. with $8.59B in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For WMB, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their WMB positions.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
| Jul 11, 2025 |
| Lisa McClain | Sell | Jul 10, 2025 |
| Jefferson Shreve | Sell | May 12, 2025 |
| Jonathan Jackson | Sell | Apr 23, 2025 |
| Dwight Evans | Sell | Apr 3, 2025 |
Showing 8 of 37. STOCK Act disclosures lag up to 45 days.
Last Close
$75.15
2026-09-09
YTD
+23.5%
81% of 52-week range
