Westlake Chemical Partners LP
Last updated September 27, 2026
Organization details
- Legal name
- Westlake Chemical Partners LP
- Ownership
- Public
- Status
- Active
- Headquarters country
- United States
- Ticker symbol
- WLKP
- Primary stock exchange
- NYSE
Identifiers
- SEC CIK
- 0001604665
Board of directors
-
G. Stephen Finley · DirectorSince 2023
-
James Chao · Director · Senior ChairmanSince 2025
-
Jean-Marc Gilson · Director · President and CEOSince 2024
-
Lisa A. Friel · DirectorSince 2023
-
Randy Woelfel · DirectorSince 2023
Chief executives
Jean-Marc Gilson
· President and CEO
Since July 2024
Board connections
1 of this board's directors also sit on 1 other board.
- via James Chao
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
- Bought, last 12 months
- $0
- 0 purchases by 0 insiders
- Sold, last 12 months
- $0
- 0 sales by 0 insiders
| Date | Insider | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Aug 27, 2025 | Jean-Marc Gilson Director, Officer (President and CEO) | Open-market purchase | +95 | $21.25 | $2,025 |
| Aug 21, 2025 | Jean-Marc Gilson Director, Officer (President and CEO) | Open-market purchase | +1,250 | $22.02 | $27,525 |
| Aug 20, 2025 | Jean-Marc Gilson Director, Officer (President and CEO) | Open-market purchase | +1,250 | $21.86 | $27,325 |
| Aug 15, 2025 | Jean-Marc Gilson Director, Officer (President and CEO) | Open-market purchase | +4,700 | $21.84 | $102,648 |
| Aug 7, 2025 | Randy Woelfel Director | Option exercise | +4,882 | — | — |
| Aug 7, 2025 | Lisa A. Friel Director | Option exercise | +4,882 | — | — |
| Aug 7, 2025 | G. Stephen Finley Director | Option exercise | +4,882 | — | — |
| Aug 7, 2025 | Randy Woelfel Director | Sold back to the company | −4,882 | $21.96 | $107,209 |
| Aug 7, 2025 | Lisa A. Friel Director | Sold back to the company | −2,441 | $21.96 | $53,604 |
| May 29, 2025 | James Chao Director, Officer (Senior Chairman) | Open-market sale | −3,700 | $22.10 | $81,770 |
| May 29, 2025 | Jean-Marc Gilson Director, Officer (President and CEO) | Open-market purchase | +94 | $22.20 | $2,081 |
| May 28, 2025 | James Chao Director, Officer (Senior Chairman) | Open-market sale | −4,600 | $22.10 | $101,660 |
| May 27, 2025 | James Chao Director, Officer (Senior Chairman) | Open-market sale | −5,608 | $22.17 | $124,329 |
| Feb 25, 2025 | Jean-Marc Gilson Director, Officer (President and CEO) | Open-market purchase | +83 | $24.75 | $2,042 |
| Nov 27, 2024 | Jean-Marc Gilson Director, Officer (President and CEO) | Open-market purchase | +85 | $23.57 | $2,003 |
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