WLKP · NYSE · CIK 0001604665

Westlake Chemical Partners LP

Westlake Chemical Partners LP’s most recent SEC filing in our snapshot is a Form 3 filed on Aug 31, 2026. In fiscal 2025 (year ended Dec 31, 2025) it reported revenue of $1.2B and net income of $48.7M, according to its XBRL data on EDGAR. Its EDGAR record lists 6 Form 4 insider filings from the 12 months before our last refresh.

SEC EDGAR snapshot updated Oct 27, 2026, 11:27 PM EDT. See all filings on sec.gov.

Revenue, FY2025
$1.2B
Net income, FY2025
$48.7M
Form 4 filings on record, past 12 months
6

Company overview

Legal name (as filed)
Westlake Chemical Partners LP
Ticker
WLKP
SEC Central Index Key (CIK)
0001604665
Industry (SIC)
Industrial Organic Chemicals (code 2860)
Business address
HOUSTON, TX
State or country of incorporation
DE
Fiscal year ends
December 31
SEC filer category
Accelerated filer
Position in SEC ticker list
#2628 of the 3,000 companies we track

Five-year financial highlights

Full-year figures from Westlake Chemical Partners LP’s annual reports, as tagged in XBRL and published by the SEC. Amounts are in U.S. dollars; the fiscal year is named for the calendar year in which it ends.

Revenue
$1.2BFY2021$1.6BFY2022$1.2BFY2023$1.1BFY2024$1.2BFY2025
Net income
$82.5MFY2021$64.2MFY2022$54.3MFY2023$62.4MFY2024$48.7MFY2025
WLKP annual results
ItemFY2021
ended Dec 31, 2021		FY2022
ended Dec 31, 2022		FY2023
ended Dec 31, 2023		FY2024
ended Dec 31, 2024		FY2025
ended Dec 31, 2025
Revenue$1.2B$1.6B$1.2B$1.1B$1.2B
Net income$82.5M$64.2M$54.3M$62.4M$48.7M
Diluted EPS—————
Total assets$1.5B$1.4B$1.3B$1.3B$1.3B
Cash and equivalents$17.1M$64.8M$58.6M$58.3M$44.3M

XBRL tags used: revenue = Revenues; netIncome = NetIncomeLoss; assets = Assets; cash = CashAndCashEquivalentsAtCarryingValue. EPS is shown as originally reported for each year and may not be adjusted for later stock splits. A dash means the company did not report that item in a form we could match.

How to read these numbers

Revenue is the money a company brings in from selling its products and services; net income is what is left after all expenses, interest and taxes. Diluted EPS spreads net income across every share that could exist if options and convertible securities were exercised. Total assets and cash are balance-sheet figures measured on the last day of the fiscal year. For the full story — segment results, one-time charges, guidance — read Management’s Discussion and Analysis in the Form 10-K.

Latest key reports

The most recent filing of each major report type, even if it falls outside the 40 newest filings below.

WLKP latest annual, quarterly, current and proxy reports
FiledFormWhat it isOriginal
Mar 4, 202610-KAnnual report· period Dec 31, 2025Document · Index
Aug 5, 202610-QQuarterly report· period Jun 30, 2026Document · Index
Aug 31, 20268-KDirector or officer change· period Aug 31, 2026Document · Index
Mar 18, 2024DEF 14ADEFINITIVE PROXY STATEMENTS· period May 8, 2024Document · Index

Recent SEC filings

The 40 newest documents filed by or about Westlake Chemical Partners LP, by form type:

4 ×138-K ×810-Q ×53 ×3144 ×2SCHEDULE 13G ×2EFFECT ×1CORRESP ×1UPLOAD ×110-K ×1S-3 ×14/A ×1SCHEDULE 13G/A ×1
WLKP recent filings
FiledFormWhat it isOriginal
Aug 31, 20263Initial statement of beneficial ownership· period Aug 31, 2026Document · Index
Aug 31, 20268-KDirector or officer change· period Aug 31, 2026Document · Index
Aug 13, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 12, 2026Document · Index
Aug 13, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 12, 2026Document · Index
Aug 13, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 12, 2026Document · Index
Aug 7, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 6, 2026Document · Index
Aug 7, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 6, 2026Document · Index
Aug 7, 20264Statement of changes in beneficial ownership (insider trade)· period Aug 6, 2026Document · Index
Aug 5, 202610-QQuarterly report· period Jun 30, 2026Document · Index
Aug 4, 20268-KResults of operations; Regulation FD disclosure· period Aug 4, 2026Document · Index
Jun 15, 20263Initial statement of beneficial ownership· period Jun 15, 2026Document · Index
May 6, 202610-QQuarterly report· period Mar 31, 2026Document · Index
May 5, 20268-KResults of operations; Regulation FD disclosure· period May 5, 2026Document · Index
Apr 20, 20268-KDirector or officer change; Regulation FD disclosure· period Apr 20, 2026Document · Index
Mar 11, 2026EFFECTEFFECTDocument · Index
Mar 9, 2026CORRESPCORRESPDocument · Index
Mar 9, 2026UPLOADUPLOADDocument · Index
Mar 4, 202610-KAnnual report· period Dec 31, 2025Document · Index
Mar 4, 2026S-3Simplified registration statementDocument · Index
Feb 24, 20268-KResults of operations; Regulation FD disclosure· period Feb 24, 2026Document · Index
Feb 23, 20268-KDirector or officer change· period Feb 18, 2026Document · Index
Feb 17, 2026SCHEDULE 13GPassive beneficial ownership report (over 5%)Document · Index
Oct 31, 202510-QQuarterly report· period Sep 30, 2025Document · Index
Oct 30, 20258-KMaterial agreement; Results of operations; Regulation FD disclosure· period Oct 30, 2025Document · Index
Aug 29, 20254Statement of changes in beneficial ownership (insider trade)· period Aug 27, 2025Document · Index
Aug 28, 20254Statement of changes in beneficial ownership (insider trade)· period Nov 27, 2024Document · Index
Aug 28, 20254/AStatement of changes in beneficial ownership (insider trade)· period Aug 28, 2024Document · Index
Aug 15, 2025144Notice of proposed sale of securitiesDocument · Index
Aug 14, 2025SCHEDULE 13GPassive beneficial ownership report (over 5%)Document · Index
Aug 8, 20254Statement of changes in beneficial ownership (insider trade)· period Aug 6, 2025Document · Index
Aug 8, 20254Statement of changes in beneficial ownership (insider trade)· period Aug 6, 2025Document · Index
Aug 8, 20254Statement of changes in beneficial ownership (insider trade)· period Aug 6, 2025Document · Index
Aug 7, 20253Initial statement of beneficial ownership· period Aug 6, 2025Document · Index
Aug 6, 202510-QQuarterly report· period Jun 30, 2025Document · Index
Aug 5, 20258-KResults of operations; Regulation FD disclosure· period Aug 5, 2025Document · Index
May 30, 20254Statement of changes in beneficial ownership (insider trade)· period May 29, 2025Document · Index
May 29, 20254Statement of changes in beneficial ownership (insider trade)· period May 27, 2025Document · Index
May 27, 2025144Notice of proposed sale of securitiesDocument · Index
May 15, 2025SCHEDULE 13G/APassive beneficial ownership report (over 5%)Document · Index
May 2, 202510-QQuarterly report· period Mar 31, 2025Document · Index

Insider filing activity

6 Form 4 filings appear in Westlake Chemical Partners LP’s EDGAR record between Oct 28, 2025 and our last refresh. Most are reports by the company’s own directors, officers and 10% owners, but EDGAR also lists a Form 4 under a company when the company itself is the insider — for example, when it owns more than 10% of another public company. Foreign private issuers’ own insiders generally do not file Form 4. A high count is not by itself a signal: many Form 4s report routine stock awards, tax withholding or sales under pre-arranged Rule 10b5-1 plans. Open each filing to see the transaction code, share count and price. What a Form 4 shows.

Other companies in Industrial Organic Chemicals

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Source

  • U.S. Securities and Exchange Commission, EDGAR submissions for CIK 0001604665 and XBRL company facts. Westlake Chemical Partners LP on EDGAR.
  • Snapshot updated Oct 27, 2026, 11:27 PM EDT. The SEC does not endorse OpenFilings. Company names and tickers are used only to identify the filer; no logos are shown.

Not investment advice. This page summarizes public SEC filings for information only. Figures may contain errors or omissions; confirm everything in the original filing before relying on it.