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.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Westlake Chemical Partners LP insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 0 filings
- Insiders trading
- 0
- Net value
- $0
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Westlake Chemical Partners LP, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Woelfel Randy | Director | 23,913 | Aug 13, 2026 | 2 |
| Finley G Stephen | Director | 36,935 | Aug 13, 2026 | 2 |
| Friel Lisa A. | Director | 9,666 | Aug 13, 2026 | 2 |
| Gilson Jean-Marc | President and CEO | 11,803 | Aug 29, 2025 | 0 |
| Chao James | Senior Chairman | 0 | May 30, 2025 | 0 |
| Kenner Andrew | SVP, Olefin Material & Corp Pr | 185,000 | Aug 14, 2024 | 0 |
| Minas Angela A | Director | 19,427 | Aug 12, 2022 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| 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 | |
| Jun 3, 2024 (view filing) | May 30 | 4 days | Kenner AndrewSVP, Olefin Material & Corp Pr | PPurchaseCommon Units | +2.29K | $22.23 | +$50.9K | +1.4%170.3K after | |
| May 14, 2024 (view filing) | May 10 | 4 days | Kenner AndrewSVP, Olefin Material & Corp Pr | PPurchaseCommon Units | +7.18K | $22.07 | +$158.4K | +4.5%168.0K after | |
| May 10, 2024 (view filing) | May 8 | 2 days | Kenner AndrewSVP, Olefin Material & Corp Pr | PPurchaseCommon Units | +10.0K | $22.10 | +$221.0K | +6.6%160.8K after | |
| Apr 1, 2024 (view filing) | Mar 28 | 4 days | Kenner AndrewSVP, Olefin Material & Corp Pr | PPurchaseCommon Units | +5.00K | $22.23 | +$111.2K | +3.4%150.8K after | |
| Mar 25, 2024 (view filing) | Mar 21 | 4 days | Kenner AndrewSVP, Olefin Material & Corp Pr | PPurchaseCommon Units | +4.23K | $22.16 | +$93.7K | +3.0%145.8K after | |
| Mar 7, 2024 (view filing) | Mar 6 | 1 day | Kenner AndrewSVP, Olefin Material & Corp Pr | PPurchaseCommon Units | +5.00K | $22.30 | +$111.5K | +3.7%141.6K after | |
| Feb 26, 2024 (view filing) | Feb 22 | 4 days | Kenner AndrewSVP, Olefin Material & Corp Pr | PPurchaseCommon Units | +10.0K | $22.12 | +$221.2K | +7.9%136.6K after | |
| Nov 13, 2023 (view filing) | Nov 9 | 4 days | Kenner AndrewSVP, Olefin Material & Corp Pr | PPurchaseCommon Units | +5.00K | $21.48 | +$107.4K | +4.1%126.6K after | |
| Nov 8, 2023 (view filing) | Nov 6 | 2 days | Kenner AndrewSVP, Olefin Material & Corp Pr | PPurchaseCommon Units | +10.0K | $22.02 | +$220.2K | +9.0%121.6K after | |
| Aug 31, 2023 (view filing) | Aug 29 | 2 days | Kenner AndrewSVP, Olefin Material & Corp Pr | PPurchaseCommon Units | +10.0K | $22.74 | +$227.4K | +9.8%111.6K after | |
| Aug 24, 2023 (view filing) | Aug 22 | 2 days | Kenner AndrewSVP, Olefin Material & Corp Pr | PPurchaseCommon Units | +11.8K | $22.30 | +$262.3K | +13.1%101.6K after | |
| Aug 23, 2023 (view filing) | Aug 21 | 2 days | Kenner AndrewSVP, Olefin Material & Corp Pr | PPurchaseCommon Units | +643 | $22.11 | +$14.2K | +0.7%89.8K after | |
| Aug 21, 2023 (view filing) | Aug 17 | 4 days | Kenner AndrewSVP, Olefin Material & Corp Pr | PPurchaseCommon Units | +5.00K | $22.08 | +$110.4K | +5.9%89.2K after | |
| Aug 16, 2023 (view filing) | Aug 15-16 | 1 day | Kenner AndrewSVP, Olefin Material & Corp Pr | PPurchaseCommon Units | +4.20K | $22.18 | +$93.3K | +5.3%84.2K after | 2 lots |
| Aug 11, 2023 (view filing) | Aug 9-10 | 2 days | Kenner AndrewSVP, Olefin Material & Corp Pr | PPurchaseCommon Units | +10.0K | $22.78 | +$227.8K | +14.3%80.0K after | 2 lots |
| Aug 9, 2023 (view filing) | Aug 7 | 2 days | Kenner AndrewSVP, Olefin Material & Corp Pr | PPurchaseCommon Units | +5.00K | $23.00 | +$115.0K | +7.7%70.0K after | |
| Mar 14, 2023 (view filing) | Mar 13 | 1 day | Kenner AndrewSVP, Olefin Material & Corp Pr | PPurchaseCommon Units | +5.00K | $21.44 | +$107.2K | +8.3%65.0K after | |
| Mar 13, 2023 (view filing) | Mar 10 | 3 days | Kenner AndrewSVP, Olefin Material & Corp Pr | PPurchaseCommon Units | +10.0K | $22.02 | +$220.2K | +20.0%60.0K after | |
| Nov 16, 2022 (view filing) | Nov 15 | 1 day | Kenner AndrewSVP, Olefin Material & Corp Pr | PPurchaseCommon Units | +4.36K | $22.97 | +$100.2K | +9.6%50.0K after | |
| Nov 14, 2022 (view filing) | Nov 10 | 4 days | Kenner AndrewSVP, Olefin Material & Corp Pr | PPurchaseCommon Units | +5.64K | $22.98 | +$129.6K | +14.1%45.6K after | |
| Jun 2, 2022 (view filing) | May 31 | 2 days | Chao JamesChairman | SSaleCommon Units | −31.1K | $26.91 | −$836.8K | −56.5%23.9K after | 2 lots |
| Mar 9, 2022 (view filing) | Mar 8 | 1 day | Kenner AndrewSVP, Olefin Material & Corp Pr | PPurchaseCommon Units | +10.0K | $26.34 | +$263.4K | +33.3%40.0K after | |
| Mar 8, 2022 (view filing) | Mar 7 | 1 day | Kenner AndrewSVP, Olefin Material & Corp Pr | PPurchaseCommon Units | +8.00K | $26.15 | +$209.2K | +36.4%30.0K after |