---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-263753"
form_type: "8-K"
ticker: "WLK"
cik: "0001262823"
company_name: "WESTLAKE CORP"
filed_at: "2025-11-04T23:59:59+00:00"
generated_at: "2026-05-17T00:33:40.776479+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Westlake Corp launches tender offer for $750M 3.600% Senior Notes due 2026 and new notes offering

## Summary
- Westlake commenced a cash tender offer for any and all of its $750 million aggregate principal 3.600% Senior Notes due 2026.
- The tender offer expires on November 10, 2025, and is conditioned on the successful completion of a concurrent senior notes offering.
- Westlake also announced an underwritten public offering of senior unsecured notes to fund the tender offer and its pending ACI/Perplastic Group acquisition.
- J.P. Morgan Securities and Wells Fargo Securities are dealer managers for the tender offer; BofA, Deutsche Bank, J.P. Morgan, and Wells Fargo are joint book-runners for the notes offering.
- Net proceeds from the notes offering will also be used for general corporate purposes including working capital management.

## SEC filing metadata
- accession: 0001193125-25-263753
- form_type: 8-K
- ticker: WLK
- cik: 0001262823
- company_name: WESTLAKE CORP
- filed_at: 2025-11-04T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1262823/000119312525263753/0001193125-25-263753-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1262823/000119312525263753/d30957d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-263753
- JSON: https://secwatch.observer/filing/0001193125-25-263753.json
- Plain text: https://secwatch.observer/filing/0001193125-25-263753.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.