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Westlake Chemical Partners LP SEC filings

Westlake Chemical Partners LP filed 11 documents with the SEC in the last twelve months, the latest report being the 10-Q of 5 August 2026. The latest filing, on 31 August 2026, was an 8-K: officer or director change.

Filings in twelve months117 of them 8-K news
Latest report10-Qfiled 5 Aug 2026
Latest filing8-K31 Aug 2026
Last results, two-day move+0.0%results filed 4 Aug 2026
New to this? How to read this page
  1. Companies file with the SEC when something happens. 10-Q and 10-K are the quarterly and annual reports; 8-K is news that cannot wait for the next report.
  2. An 8-K says which items it covers, such as results, a change at the top or a big contract. A foreign company files a 6-K instead.
  3. The results release is usually an 8-K filed the day results come out, before the 10-Q or 10-K.
  4. Every filing links to the original on EDGAR, the SEC's own site.

Twelve months of filings

by kind

Most of the filings were results (4). Results came out 4 times.

Each mark is one filing on the day it was filed, in rows by kind. Hover or tap a mark for the form and what it was about.

The share price around each results release

close before to close after

Over the last 4 releases the share price moved 1.9% on average in the two days around results, the most on 24 Feb 2026 (+3.6%).

30 Oct 2025-0.5%$18.95 to $18.86
24 Feb 2026+3.6%$21.24 to $22.01
5 May 2026+3.4%$22.67 to $23.45
4 Aug 2026+0.0%$21.27 to $21.27
Daily closeResults filed

Each ring marks a results filing. The move runs from the last close before the filing to the first close after it, so it covers results released before the open or after the close. Hover the line for any day's close.

What the company told investors on 8-K

7 filings

Westlake Chemical Partners LP's 7 news filings (8-K) were mostly about regulation FD disclosure (5) and results of operations (4).

  • Regulation FD disclosureMaterial shared with investors, often slides or a presentation
    5 · latest 4 Aug 2026
  • Results of operationsThe quarterly results release
    4 · latest 4 Aug 2026
  • Officer or director changeSomeone joined, left or changed role at the top
    3 · latest 31 Aug 2026
  • Material agreementA large contract or deal was signed
    1 · latest 30 Oct 2025

Each line is one kind of news, with what it means in plain words. Each square is one filing; a filing can carry more than one kind, so the squares can add up to more than the filings. The date opens the latest one on EDGAR.

How it compares

every company on the site

    The bar ranks every company on the site from the lowest on the left to the highest on the right, in three equal thirds; the small figures under it are the values where each third starts, and the black tick is the middle company. The orange dot is this company; the grey ticks are the other companies in its industry (hover or tap for names). A hatched block is companies tied at none.

    Every filing as a table

    In the last twelve months Westlake Chemical Partners LP filed 11 documents with the SEC of the kinds listed here: 7 current reports (8-K), about 5 regulation FD disclosure; 4 results of operations; 3 officer or director change; 1 material agreement; 3 quarterly reports (10-Q), 1 annual report (10-K). The latest, filed 31 August 2026: 8-K, officer or director change. The 10-K, the 10-Qs and the proxy statement themselves, each with a link to open it, are on the documents page.

    FiledFormWhat it was aboutPeriod or event dateFiling
    31 August 20268-KOfficer or director change31 August 2026EDGAR
    5 August 202610-Qquarterly report30 June 2026EDGAR
    4 August 20268-KResults of operations, Regulation FD disclosure4 August 2026EDGAR
    6 May 202610-Qquarterly report31 March 2026EDGAR
    5 May 20268-KResults of operations, Regulation FD disclosure5 May 2026EDGAR
    20 April 20268-KOfficer or director change, Regulation FD disclosure20 April 2026EDGAR
    4 March 202610-Kannual report31 December 2025EDGAR
    24 February 20268-KResults of operations, Regulation FD disclosure24 February 2026EDGAR
    23 February 20268-KOfficer or director change18 February 2026EDGAR
    31 October 202510-Qquarterly report30 September 2025EDGAR
    30 October 20258-KMaterial agreement, Results of operations, Regulation FD disclosure30 October 2025EDGAR
    An 8-K is what a company files within four business days of a material event; the SEC numbers the events, and the words here are the SEC's own headings, shortened.
    Read moreForm 4, Form 144, 13F and Schedule 13D and 13G have their own pages. Prospectus supplements and correspondence are not listed.