Westlake Chemical Partners LP SEC filings WLKP
Westlake Chemical Partners LP has 420 filings in SEC EDGAR's recent list, going back to Apr 29, 2014. Its latest annual report, Form 10-K, was filed on Mar 4, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 4, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 4, 2026 (results of operations, regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 10-Q | Quarterly report | Nov 4, 2026 | Sep 30, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 4, 2026 | Nov 4, 2026 |
| 8-K |
Current report
Officer or director change
|
Aug 31, 2026 | Aug 31, 2026 |
| 10-Q | Quarterly report | Aug 5, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 4, 2026 | Aug 4, 2026 |
| 10-Q | Quarterly report | May 6, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 5, 2026 | May 5, 2026 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Apr 20, 2026 | Apr 20, 2026 |
| EFFECT | Filing | Mar 11, 2026 | — |
| CORRESP | Letter to the SEC | Mar 9, 2026 | — |
| UPLOAD | Letter from the SEC | Mar 9, 2026 | — |
| S-3 | Shelf registration | Mar 4, 2026 | — |
| 10-K | Annual report | Mar 4, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 24, 2026 | Feb 24, 2026 |
| 8-K |
Current report
Officer or director change
|
Feb 23, 2026 | Feb 18, 2026 |
| 10-Q | Quarterly report | Oct 31, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Material agreement, Results of operations, Regulation FD disclosure
|
Oct 30, 2025 | Oct 30, 2025 |
| 10-Q | Quarterly report | Aug 6, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 5, 2025 | Aug 5, 2025 |
| 10-Q | Quarterly report | May 2, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 2, 2025 | May 2, 2025 |
| 10-K | Annual report | Mar 5, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 24, 2025 | Feb 24, 2025 |
| 10-Q | Quarterly report | Nov 6, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 5, 2024 | Nov 5, 2024 |
| 10-Q | Quarterly report | Aug 9, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 6, 2024 | Aug 6, 2024 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Jul 15, 2024 | Jul 15, 2024 |
| S-8 POS | Filing | May 10, 2024 | — |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 8, 2024 | May 8, 2024 |
| 10-Q | Quarterly report | May 2, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 1, 2024 | May 1, 2024 |
| DEFA14A | Additional proxy material | Mar 18, 2024 | — |
| DEF 14A | Proxy statement | Mar 18, 2024 | May 8, 2024 |
| 10-K | Annual report | Feb 28, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 20, 2024 | Feb 20, 2024 |
| 10-Q | Quarterly report | Nov 2, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 2, 2023 | Nov 2, 2023 |
| 10-Q | Quarterly report | Aug 3, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 3, 2023 | Aug 3, 2023 |
| 10-Q | Quarterly report | May 4, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 4, 2023 | May 4, 2023 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Apr 27, 2023 | Apr 27, 2023 |
| EFFECT | Filing | Mar 20, 2023 | — |
| CORRESP | Letter to the SEC | Mar 16, 2023 | — |
| UPLOAD | Letter from the SEC | Mar 8, 2023 | — |
| 8-K |
Current report
Officer or director change
|
Mar 7, 2023 | Mar 3, 2023 |
| S-3 | Shelf registration | Mar 1, 2023 | — |
| 10-K | Annual report | Mar 1, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 21, 2023 | Feb 21, 2023 |
| 10-Q | Quarterly report | Nov 3, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 3, 2022 | Nov 3, 2022 |
| 10-Q | Quarterly report | Aug 3, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 2, 2022 | Aug 2, 2022 |
| 8-K |
Current report
Material agreement
|
Jul 15, 2022 | Jul 12, 2022 |
| 10-Q | Quarterly report | May 4, 2022 | Mar 31, 2022 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 3, 2022 | May 3, 2022 |
| 10-K | Annual report | Mar 2, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 22, 2022 | Feb 22, 2022 |
| 10-Q | Quarterly report | Nov 3, 2021 | Sep 30, 2021 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 2, 2021 | Nov 2, 2021 |
| 10-Q | Quarterly report | Aug 4, 2021 | Jun 30, 2021 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 3, 2021 | Aug 3, 2021 |
| 10-Q | Quarterly report | May 5, 2021 | Mar 31, 2021 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 4, 2021 | May 4, 2021 |
| 10-K | Annual report | Mar 2, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 23, 2021 | Feb 23, 2021 |
| 10-Q | Quarterly report | Nov 4, 2020 | Sep 30, 2020 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 3, 2020 | Nov 3, 2020 |
| 8-K |
Current report
Other events
|
Sep 8, 2020 | Sep 8, 2020 |
| 8-K |
Current report
Other events
|
Aug 28, 2020 | Aug 27, 2020 |
| 10-Q | Quarterly report | Aug 6, 2020 | Jun 30, 2020 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 6, 2020 | Aug 6, 2020 |
| 10-Q | Quarterly report | May 6, 2020 | Mar 31, 2020 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 4, 2020 | May 4, 2020 |
| EFFECT | Filing | Apr 16, 2020 | — |
| CORRESP | Letter to the SEC | Apr 14, 2020 | — |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Mar 24, 2020 | Mar 24, 2020 |
| CORRESP | Letter to the SEC | Mar 4, 2020 | — |
| UPLOAD | Letter from the SEC | Mar 4, 2020 | — |
| CORRESP | Letter to the SEC | Mar 3, 2020 | — |
| S-3 | Shelf registration | Feb 28, 2020 | — |
| 10-K | Annual report | Feb 28, 2020 | Dec 31, 2019 |
| 8-K |
Current report
Officer or director change
|
Feb 18, 2020 | Feb 13, 2020 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 18, 2020 | Feb 18, 2020 |
| 8-K |
Current report
Officer or director change
|
Jan 31, 2020 | Jan 27, 2020 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Nov 8, 2019 | Nov 8, 2019 |
| 10-Q | Quarterly report | Nov 6, 2019 | Sep 30, 2019 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 5, 2019 | Nov 5, 2019 |
| 8-K |
Current report
Officer or director change
|
Oct 17, 2019 | Oct 11, 2019 |
| 10-Q | Quarterly report | Aug 6, 2019 | Jun 30, 2019 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 6, 2019 | Aug 6, 2019 |
| 10-Q | Quarterly report | May 2, 2019 | Mar 31, 2019 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 2, 2019 | May 2, 2019 |
| EFFECT | Filing | Apr 12, 2019 | — |
| CORRESP | Letter to the SEC | Apr 10, 2019 | — |
| UPLOAD | Letter from the SEC | Apr 10, 2019 | — |
| S-3 | Shelf registration | Mar 29, 2019 | — |
| 8-K |
Current report
Acquisition or sale of assets, Other events
|
Mar 29, 2019 | Mar 29, 2019 |
| 8-K/A |
Amended current report
New debt, Unregistered share sale, Regulation FD disclosure
|
Mar 27, 2019 | Mar 26, 2019 |
| 8-K |
Current report
New debt, Unregistered share sale, Regulation FD disclosure
|
Mar 27, 2019 | Mar 26, 2019 |
| 10-K | Annual report | Mar 1, 2019 | Dec 31, 2018 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 19, 2019 | Feb 19, 2019 |
| 10-Q | Quarterly report | Nov 6, 2018 | Sep 30, 2018 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 6, 2018 | Nov 6, 2018 |
| 424B5 | Prospectus supplement | Oct 5, 2018 | — |
| 8-K |
Current report
Other events
|
Oct 5, 2018 | Oct 4, 2018 |
| 10-Q | Quarterly report | Aug 2, 2018 | Jun 30, 2018 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 2, 2018 | Aug 2, 2018 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Jul 30, 2018 | Jul 27, 2018 |
| 10-Q | Quarterly report | May 3, 2018 | Mar 31, 2018 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 3, 2018 | May 3, 2018 |
| 10-K | Annual report | Mar 1, 2018 | Dec 31, 2017 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 20, 2018 | Feb 20, 2018 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Nov 16, 2017 | Nov 16, 2017 |
| 10-Q | Quarterly report | Nov 7, 2017 | Sep 30, 2017 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 7, 2017 | Nov 7, 2017 |
| 8-K |
Current report
Acquisition or sale of assets, New debt
|
Oct 3, 2017 | Sep 29, 2017 |
| 8-K |
Current report
Other events
|
Sep 28, 2017 | Sep 26, 2017 |
| 424B5 | Prospectus supplement | Sep 28, 2017 | — |
| 424B5 | Prospectus supplement | Sep 26, 2017 | — |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Sep 26, 2017 | Sep 26, 2017 |
| 10-Q | Quarterly report | Aug 3, 2017 | Jun 30, 2017 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 3, 2017 | Aug 3, 2017 |
| 10-Q | Quarterly report | May 3, 2017 | Mar 31, 2017 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 2, 2017 | May 2, 2017 |
| EFFECT | Filing | Mar 24, 2017 | — |
| CORRESP | Letter to the SEC | Mar 22, 2017 | — |
| UPLOAD | Letter from the SEC | Mar 21, 2017 | — |
| S-3 | Shelf registration | Mar 10, 2017 | — |
| 10-K | Annual report | Mar 7, 2017 | Dec 31, 2016 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 21, 2017 | Feb 21, 2017 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 24, 2017 | Jan 24, 2017 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 23, 2017 | Jan 23, 2017 |
| 8-K |
Current report
Regulation FD disclosure
|
Jan 20, 2017 | Jan 20, 2017 |
| UPLOAD | Letter from the SEC | Nov 28, 2016 | — |
| CORRESP | Letter to the SEC | Nov 23, 2016 | — |
| UPLOAD | Letter from the SEC | Nov 18, 2016 | — |
| 10-Q | Quarterly report | Nov 9, 2016 | Sep 30, 2016 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 8, 2016 | Nov 8, 2016 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Oct 11, 2016 | Oct 6, 2016 |
| 10-Q | Quarterly report | Aug 9, 2016 | Jun 30, 2016 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Jul 28, 2016 | Jul 28, 2016 |
| 10-Q | Quarterly report | May 4, 2016 | Mar 31, 2016 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 3, 2016 | May 3, 2016 |
| 10-K | Annual report | Mar 8, 2016 | Dec 31, 2015 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 23, 2016 | Feb 23, 2016 |
| 10-Q | Quarterly report | Nov 4, 2015 | Sep 30, 2015 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 3, 2015 | Nov 3, 2015 |
| 10-Q | Quarterly report | Aug 5, 2015 | Jun 30, 2015 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 4, 2015 | Aug 4, 2015 |
| 10-Q | Quarterly report | May 6, 2015 | Mar 31, 2015 |
| 8-K |
Current report
Regulation FD disclosure
|
May 6, 2015 | May 5, 2015 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
May 4, 2015 | May 4, 2015 |
| 8-K |
Current report
Acquisition or sale of assets, New debt, Regulation FD disclosure
|
Apr 30, 2015 | Apr 29, 2015 |
| 10-K | Annual report | Mar 9, 2015 | Dec 31, 2014 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Feb 24, 2015 | Feb 24, 2015 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Jan 29, 2015 | Jan 27, 2015 |
| 10-Q | Quarterly report | Nov 7, 2014 | Sep 30, 2014 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 4, 2014 | Nov 4, 2014 |
| 10-Q | Quarterly report | Sep 8, 2014 | Jun 30, 2014 |
| S-8 | Employee stock plan registration | Aug 19, 2014 | — |
| 8-K |
Current report
Material agreement, Officer or director change, Bylaw or fiscal year change
|
Aug 8, 2014 | Aug 4, 2014 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Unregistered share sale
|
Aug 4, 2014 | Jul 29, 2014 |
| CT ORDER | Filing | Aug 1, 2014 | — |
| 424B1 | Filing | Jul 31, 2014 | — |
| EFFECT | Filing | Jul 29, 2014 | — |
| S-1/A | Amended registration statement | Jul 29, 2014 | — |
| CERTNYS | Auto-generated paper document | Jul 28, 2014 | — |
| CORRESP | Letter to the SEC | Jul 25, 2014 | — |
| CORRESP | Letter to the SEC | Jul 25, 2014 | — |
| CORRESP | Letter to the SEC | Jul 25, 2014 | — |
| 8-A12B | Filing | Jul 24, 2014 | — |
| UPLOAD | Letter from the SEC | Jul 24, 2014 | — |
| CORRESP | Letter to the SEC | Jul 23, 2014 | — |
| CORRESP | Letter to the SEC | Jul 21, 2014 | — |
| S-1/A | Amended registration statement | Jul 21, 2014 | — |
| UPLOAD | Letter from the SEC | Jul 18, 2014 | — |
| CORRESP | Letter to the SEC | Jul 15, 2014 | — |
| S-1/A | Amended registration statement | Jul 15, 2014 | — |
| S-1/A | Amended registration statement | Jul 9, 2014 | — |
| CORRESP | Letter to the SEC | Jun 30, 2014 | — |
| S-1/A | Amended registration statement | Jun 30, 2014 | — |
| UPLOAD | Letter from the SEC | Jun 20, 2014 | — |
| CORRESP | Letter to the SEC | Jun 6, 2014 | — |
| S-1/A | Amended registration statement | Jun 6, 2014 | — |
| UPLOAD | Letter from the SEC | May 22, 2014 | — |
| S-1 | Registration statement | Apr 29, 2014 | — |
Showing 188 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Industrial Organic Chemicals (SIC 2860)
- Listed as
- WLKP (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Houston, TX
- SEC filer status
- Accelerated filer
- SEC CIK
- 1604665
Other Industrial Organic Chemicals companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.