Westlake Chemical Partners LP
WLKP- Exchange
- NYSE
- Industry
- Industrial Organic Chemicals
- SEC CIK
- 0001604665
No open-market purchases or sales by Westlake Chemical Partners LP insiders were filed in the last 90 days; 56 institutions reported holding it in 13F filings for Q2 2026, worth $228.0M in total; no superinvestor holds it.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsOpen market, last 90 days
- 0
- 13F holdersQ2 2026, +1 vs. previous quarter
- 56
- 13F valueReported value at the end of Q2 2026
- $228.0M
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding WLKP, Q2 2026
No superinvestor reported holding WLKP at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by Westlake Chemical Partners LP insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Aug 29, 2025 (view filing) | Aug 27 | 2 days | Gilson Jean-MarcPresident and CEO | PPurchaseCommon Units | +95.29 | $21.25 | +$2.02K | +0.8%11.8K after | |
| Aug 28, 2025 (view filing) | Nov 27, 2024-Aug 21, 2025 | 274 daysLate | Gilson Jean-MarcPresident and CEO | PPurchaseCommon Units | +7.46K | $21.93 | +$163.6K | +175.7%11.7K after | 6 lots |
| Aug 28, 2025 (view filing) | Aug 28, 2024 | 365 days | Gilson Jean-MarcPresident and CEO | PPurchaseCommon Units | +320 | $22.95 | +$7.34K | +10.3%3.43K after | Amended |
| May 30, 2025 (view filing) | May 29 | 1 day | Chao JamesSenior Chairman | SSaleCommon Units | −3.70K | $22.10 | −$81.8K | −100.0%0 after | |
| May 29, 2025 (view filing) | May 27-28 | 2 days | Chao JamesSenior Chairman | SSaleCommon Units | −10.2K | $22.14 | −$226.0K | −73.4%3.70K after | 2 lots |
| Sep 3, 2024 (view filing) | Aug 29 | 5 days | Gilson Jean-MarcPresident and CEO | PPurchaseCommon Units | +1.00K | $22.83 | +$22.8K | +34.2%3.93K after | |
| Aug 28, 2024 (view filing) | Aug 26-28 | 2 days | Gilson Jean-MarcPresident and CEO | PPurchaseCommon Units | +2.00K | $22.92 | +$45.8K | +215.7%2.93K after | 3 lots |
| Aug 26, 2024 (view filing) | Aug 22-23 | 4 days | Gilson Jean-MarcPresident and CEO | PPurchaseCommon Units | +927 | $22.75 | +$21.1K | New position927 after | 2 lots |
| Aug 14, 2024 (view filing) | Aug 12 | 2 days | Kenner AndrewSVP, Olefin Material & Corp Pr | PPurchaseCommon Units | +2.69K | $22.63 | +$60.9K | +1.5%185.0K after | |
| Aug 12, 2024 (view filing) | Aug 9 | 3 days | Kenner AndrewSVP, Olefin Material & Corp Pr | PPurchaseCommon Units | +12.0K | $22.99 | +$275.9K | +7.0%182.3K after |
Top 10 13F holders, Q2 2026
The largest institutional positions in Westlake Chemical Partners LP at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Invesco Ltd. | 4,972,812 | $110.7M | 0.01% | 00.0% | Unchanged |
| Energy Income Partners, LLC | 1,589,566 | $35.4M | 0.56% | +7,559+0.5% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 719,852 | $16.0M | 0.02% | +28,057+4.1% | Added |
| Clearbridge Investments, LLC | 633,569 | $14.1M | 0.01% | 00.0% | Unchanged |
| UBS Group AG | 442,165 | $9.84M | 0.00% | −15,562−3.4% | Reduced |
| Goldman Sachs Group Inc | 238,363 | $5.31M | 0.00% | +18,705+8.5% | Added |
| Citigroup Inc | 218,105 | $4.86M | 0.00% | −10,650−4.7% | Reduced |
| Bank of America Corp | 174,309 | $3.88M | 0.00% | −53,843−23.6% | Reduced |
| Morgan Stanley | 170,333 | $3.79M | 0.00% | −10,238−5.7% | Reduced |
| Pathway Financial Advisers, LLC | 107,894 | $2.40M | 0.61% | +1,296+1.2% | Added |