Institutional Holders (2026 Q1)
2K + investorsExplore institutional interest and hedge fund ownership dynamics. Analyze portfolio weights, new positions, and conviction trends in WMB. Verified SEC 13F-HR filings.
| # | Investor | % of Portfolio | Shares | Mkt Value |
|---|---|---|---|---|
| 1 | Walnut Private Equity Partners, LLC | 19.26% | 479,825 | $34.9M |
| 2 | Heronetta Management, L.P. | 16.70% | 251,402 | $18.3M |
| 3 | R.m.sincerbeaux Capital Management LLC | 10.85% | 255,723 | $18.6M |
| 4 | Robertson Opportunity Capital, LLC | 10.21% | 364,782 | $26.5M |
| 5 | Kayne Anderson Capital Advisors LP | 9.35% | 6,703,243 | $487.9M |
| 6 | Amplify Investments, LLC | 8.89% | 6,817 | $496K |
| 7 | Tortoise Capital Advisors, L.L.C. | 8.72% | 11,499,134 | $836.9M |
| 8 | Sl Advisors, LLC | 8.10% | 65,722 | $4.8M |
| 9 | Asset Management Advisors, LLC | 7.64% | 173,616 | $12.6M |
| 10 | RR Advisors, LLC | 7.57% | 375,077 | $27.3M |
| 11 | Fractal Investments LLC | 7.01% | 814,000 | $59.2M |
| 12 | M.D. Sass, LLC | 6.48% | 1,173,920 | $85.4M |
| 13 | Barnett & Company, Inc. | 6.36% | 112,419 | $8.2M |
| 14 | ELCO Management Co., LLC | 6.35% | 181,958 | $13.2M |
| 15 | CUSHING ASSET MANAGEMENT, LP dba NXG INVESTMENT MANAGEMENT | 6.13% | 1,700,100 | $123.7M |
| 16 | Rivermont Capital Management LP | 5.71% | 372,086 | $27.1M |
| 17 | Dilation Capital Management LP | 5.50% | 150,605 | $11.0M |
| 18 | Ausbil Investment Management Ltd | 5.00% | 139,927 | $10.1M |
| 19 | Blackstone Inc. | 4.85% | 17,074,392 | $1.24B |
| 20 | Candelo Capital Management LP | 4.31% | 71,661 | $5.2M |
| 21 | Weybosset Research & Management LLC | 4.19% | 199,736 | $14.5M |
| 22 | Fwl Investment Management, LLC | 4.18% | 261,577 | $19.0M |
| 23 | CapWealth Advisors, LLC | 4.12% | 762,287 | $55.5M |
| 24 | Adams Natural Resources Fund, INC. | 3.86% | 457,450 | $33.3M |
| 25 | SailingStone Capital Partners LLC | 3.73% | 225,779 | $16.4M |
| Investor | Ownership History |
% of Portfolio | Prev % | Rank | Conviction | Avg Buy Price | 13F Score™ 3Y / 7Y | Sell Timing | Shares | Mkt Value | Change | Change % | Source | Quarter | Filed |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|