Who owns Williams Cos Inc (WMB)?
490 US mutual funds and ETFs from 218 fund families reported a position in WMB for the quarter ending 2026-06-30. Against their own report a quarter earlier, 148 raised shares, 37 opened a new position, 231 cut and 33 sold out.
Largest fund families
| Fund family | Funds | Share of fund-held shares |
|---|---|---|
| Vanguard Index Funds | 6 | 41.1% |
| Ishares Trust | 16 | 13.3% |
| Select Sector Spdr Trust | 1 | 9.8% |
| Vanguard Fenway Funds | 1 | 3.3% |
| Vanguard Institutional Index Funds | 2 | 2.9% |
| Legg Mason Partners Investment Trust | 2 | 2.3% |
Tracked managers holding WMB
None of the managers Prior Moves tracks on 13F reports WMB in its latest filing.
Source: SEC Form N-PORT, which funds file about 60 days after quarter end, and the latest 13F filings. Share counts, not trades: a change can reflect fund inflows or outflows rather than a decision about WMB. A record of holdings, not a forecast and not investment advice. See all owner pages or the forecast board for the names our model ranks.
Our model ranks every tracked manager’s likely next buys from 13F filings. Request the dataset sample with a work email.
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