# EDGAR Filing Document

**Accession Number:** 0001262823
**File Stem:** 0001193125-26-138979
**Filing Date:** 2026-4
**Character Count:** 1291
**Document Hash:** db8cf17dd8073b840175e6809c1ff314
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-138979.hdr.sgml**: 20260402

**ACCESSION NUMBER**: 0001193125-26-138979

**CONFORMED SUBMISSION TYPE**: ARS

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251231

**FILED AS OF DATE**: 20260402

**DATE AS OF CHANGE**: 20260402

**EFFECTIVENESS DATE**: 20260402

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** WESTLAKE CORP
- **CENTRAL INDEX KEY:** 0001262823
- **STANDARD INDUSTRIAL CLASSIFICATION:** INDUSTRIAL ORGANIC CHEMICALS [2860]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 760346924
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** ARS
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-32260
- **FILM NUMBER:** 26830640

**BUSINESS ADDRESS:**
- **STREET 1:** 2801 POST OAK BLVD
- **STREET 2:** SUITE 600
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77056
- **BUSINESS PHONE:** 713-960-9111

**MAIL ADDRESS:**
- **STREET 1:** 2801 POST OAK BLVD
- **STREET 2:** SUITE 600
- **CITY:** HOUSTON
- **STATE:** TX
- **ZIP:** 77056

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** WESTLAKE CHEMICAL CORP
- **DATE OF NAME CHANGE:** 20030908

### Attached PDF Documents

**Attachment 1:** `d41187dars.pdf`

_No text found in this document._