15 hedge funds and family offices disclose a WMB position in their latest SEC 13F filing — combined $153.2M in market value. Of those, 4 are classified as value investors.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Daniel Loeb | Third Point LLC | 4,000,000 | $122.9M | 1.07% | 2016-09-30 |
| 2 | Stanley Druckenmiller | Duquesne Family Office LLC | 327,300 | $9.7M | 0.64% | 2017-03-31 |
| 3 | George Soros | Soros Fund Management LLC | 225,000 | $7.0M | 0.14% | 2022-06-30 |
| 4 | Bruce Berkowitz | Fairholme Capital Management LLC | 263,000 | $6.8M | 0.45% | 2021-12-31 |
| 5 | Ray Dalio | Bridgewater Associates LP | 63,323 | $4.6M | 0.02% | 2026-03-31 |
| 6 | Chuck Akre | Akre Capital Management, LLC | 16,140 | $926K | 0.02% | 2015-06-30 |
| 7 | Stephen Mandel | Lone Pine Capital LLC | 16,327,936 | $508K | 2.66% | 2016-12-31 |
| 8 | Viking Global | Viking Global Investors LP | 6,478,991 | $243K | 1.46% | 2013-03-31 |
| 9 | Lee Ainslie | Maverick Capital Ltd | 6,114 | $213K | 0.00% | 2023-12-31 |
| 10 | Mason Hawkins | Southeastern Asset Management, Inc. | 2,164,165 | $72K | 1.28% | 2022-03-31 |
| 11 | Harry Burn | Sound Shore Management Inc /CT/ | 2,904,864 | $69K | 1.03% | 2006-09-30 |
| 12 | Olstein Capital Management | Olstein Capital Management LP | 904,600 | $31K | 1.77% | 2007-09-30 |
| 13 | Christopher Bloomstran | Semper Augustus Investments Group LLC | 485 | $29K | 0.00% | 2025-12-31 |
| 14 | Thomas Russo | Gardner Russo & Quinn LLC | 1,000 | $2K | 0.00% | 2002-09-30 |
| 15 | Mairs & Power | Mairs & Power Inc | 26,000 | $844 | 0.02% | 2013-06-30 |
As of the latest 13F window, 15 tracked superinvestors hold WMB. The largest disclosed position is Daniel Loeb at $122.9M (1.1% of portfolio).
13F filings are due 45 days after each quarter end and capture long-equity positions held by U.S. institutional managers with $100M+ AUM. Use this page to see exactly who is buying WMB, how concentrated each position is, and the implied conviction level relative to the rest of each investor's book.
Key takeaways
15 hedge funds and family offices disclose a WMB position in their latest SEC 13F filing — combined $153.2M in market value. Of those, 4 are classified as value investors.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Daniel Loeb | Third Point LLC | 4,000,000 | $122.9M | 1.07% | 2016-09-30 |
| 2 | Stanley Druckenmiller | Duquesne Family Office LLC | 327,300 | $9.7M | 0.64% | 2017-03-31 |
| 3 | George Soros | Soros Fund Management LLC | 225,000 | $7.0M | 0.14% | 2022-06-30 |
| 4 | Bruce Berkowitz | Fairholme Capital Management LLC | 263,000 | $6.8M | 0.45% | 2021-12-31 |
| 5 | Ray Dalio | Bridgewater Associates LP | 63,323 | $4.6M | 0.02% | 2026-03-31 |
| 6 | Chuck Akre | Akre Capital Management, LLC | 16,140 | $926K | 0.02% | 2015-06-30 |
| 7 | Stephen Mandel | Lone Pine Capital LLC | 16,327,936 | $508K | 2.66% | 2016-12-31 |
| 8 | Viking Global | Viking Global Investors LP | 6,478,991 | $243K | 1.46% | 2013-03-31 |
| 9 | Lee Ainslie | Maverick Capital Ltd | 6,114 | $213K | 0.00% | 2023-12-31 |
| 10 | Mason Hawkins | Southeastern Asset Management, Inc. | 2,164,165 | $72K | 1.28% | 2022-03-31 |
| 11 | Harry Burn | Sound Shore Management Inc /CT/ | 2,904,864 | $69K | 1.03% | 2006-09-30 |
| 12 | Olstein Capital Management | Olstein Capital Management LP | 904,600 | $31K | 1.77% | 2007-09-30 |
| 13 | Christopher Bloomstran | Semper Augustus Investments Group LLC | 485 | $29K | 0.00% | 2025-12-31 |
| 14 | Thomas Russo | Gardner Russo & Quinn LLC | 1,000 | $2K | 0.00% | 2002-09-30 |
| 15 | Mairs & Power | Mairs & Power Inc | 26,000 | $844 | 0.02% | 2013-06-30 |
As of the latest 13F window, 15 tracked superinvestors hold WMB. The largest disclosed position is Daniel Loeb at $122.9M (1.1% of portfolio).
13F filings are due 45 days after each quarter end and capture long-equity positions held by U.S. institutional managers with $100M+ AUM. Use this page to see exactly who is buying WMB, how concentrated each position is, and the implied conviction level relative to the rest of each investor's book.
Key takeaways
