Westlake Chemical Partners
Operating U.S. ethylene plants and a dedicated pipeline through OpCo.
$21.63
After-hours close−0.01 (−0.05%)
At close$21.64(−0.41%)
Something off on this page? Send us feedback.
Breakdown13F · Form 4
Institutions 29.10%Insiders —
Shares outstanding 35.25M · Float 19.63M · 55.7% free float
Institutions13F, as of Mar 31, 2026
60 holders · 10.26M shares · 8 new positions · 23 increased · 16 reduced · 10 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Invesco Ltd. | 4.97M | 14.11% | 0 | May 12, 2026 |
| Energy Income Partners, LLC | 1.58M | 4.49% | +17.5K | May 15, 2026 |
| Mirae Asset Global Etfs Holdings Ltd. | 691.8K | 1.96% | +104.9K | May 15, 2026 |
| Clearbridge Investments, LLC | 633.6K | 1.80% | 0 | May 13, 2026 |
| UBS Group AG | 457.7K | 1.30% | −62.7K | May 5, 2026 |
| Citigroup Inc | 228.8K | 0.65% | +12.8K | May 11, 2026 |
| Bank of America Corp /DE/ | 228.2K | 0.65% | −28.8K | May 18, 2026 |
| Goldman Sachs Group Inc | 219.7K | 0.62% | +13.4K | May 15, 2026 |
Beneficial owners13D/G · 5% or more, as filed
No 13D/G filer at 5% or more on record.
InsidersForm 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Aug 27, 2025 | Jean-Marc Gilsondirector, officer: President and CEO | Purchase | 95 | $21.25 | 11,803 |
CongressHouse and Senate disclosures
Not reported.