Westlake Chemical Partners Lp (WLKP)
NYSE: WLKP · Industrial Organic Chemicals · Houston, TX · filing with the SEC since 2014
Who runs Westlake Chemical Partners Lp
Officers and directors as they report to the SEC on Forms 3, 4 and 5, named as filedChief executive, as filed
Gilson Jean-Marc
President and CEO. First filing Jul 2024, latest Aug 29, 2025, 6 filings in all.
Officers reporting now
4
of 7 people with a filing in the last fifteen months
Directors reporting now
3
20 people on the record since 2014
Officerssales are open-market, Sep 30, 2025 to Sep 30, 2026
| Name | Title as filed | First filing | Latest filing | Sales, 12 months |
|---|---|---|---|---|
| Darby Tommy | VP and CAO | Aug 2026 | Aug 31, 2026 | none |
| Baksht Jonathan | SVP and CFO | Jun 2026 | Jun 15, 2026 | none |
| Gilson Jean-Marc | President and CEO | Jul 2024 | Aug 29, 2025 | none |
| Moore Amy Ellender | VP, Olefins & Polyethylene | Aug 2025 | Aug 7, 2025 | none |
Directorssales are open-market, Sep 30, 2025 to Sep 30, 2026
| Name | Role | First filing | Latest filing | Sales, 12 months |
|---|---|---|---|---|
| Finley G Stephen | director | Mar 2020 | Aug 13, 2026 | none |
| Friel Lisa A. | director | Apr 2023 | Aug 13, 2026 | none |
| Woelfel Randy | director | Nov 2019 | Aug 13, 2026 | none |
Earlier names on the record31, newest filing first
Chao James · officer · last filing May 2025Kenner Andrew · officer · last filing Aug 2024Holy Jeffrey Adam · officer · last filing May 2024Minas Angela A · director · last filing Aug 2022Janssens Thomas J. · officer · last filing Jan 2021Zoeller Johnathan Stevan · officer · last filing Mar 2020Chao Albert · officer · last filing Mar 2020Ederington L. Benjamin · officer · last filing Mar 2020Bender Mark Steven · officer · last filing Mar 2020Teel Lawrence E. · officer · last filing Mar 2020Mangieri George J · officer · last filing Nov 2019Lukens Max L · director · last filing Aug 2019Lumpkins David · director · last filing Aug 2019Ttwfgp LLC · 10% owner · last filing Apr 2019Blackstone Advisory Partners L.P. · 10% owner · last filing Oct 2017Blackstone Advisory Services L.L.C. · 10% owner · last filing Oct 2017Blackstone Group L.P. · 10% owner · last filing Oct 2017Blackstone Group Management L.L.C. · 10% owner · last filing Oct 2017Blackstone Harvest Holdco L.L.C. · 10% owner · last filing Oct 2017Blackstone Holdings I L.P. · 10% owner · last filing Oct 2017Blackstone Holdings I/ii Gp Inc · 10% owner · last filing Oct 2017Blackstone Intermediary Holdco L.L.C. · 10% owner · last filing Oct 2017Harvest Fund Advisors LLC · 10% owner · last filing Oct 2017Harvest Fund Holdco L.P. · 10% owner · last filing Oct 2017Schwarzman Stephen A · 10% owner · last filing Oct 2017Ttwf LP · 10% owner · last filing Aug 2017Westlake Chemical Corp · 10% owner · last filing Aug 2017Westlake Chemical Investments, Inc. · 10% owner · last filing Aug 2017Westlake Olefins Corp · 10% owner · last filing Aug 2017Westlake Polymers LLC · 10% owner · last filing Aug 2017Wpt LLC · 10% owner · last filing Aug 2017
A person is listed as reporting now after a filing in the last fifteen months. The record shows when someone last filed; it does not say why they stopped. Each name links to the filings on sec.gov.