---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-24-274528"
form_type: "8-K"
ticker: "WLK"
cik: "0001262823"
company_name: "WESTLAKE CORP"
filed_at: "2024-12-11T23:59:59+00:00"
generated_at: "2026-05-29T04:37:33.651693+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Westlake Corp appoints Roger Cregg to board, Marius Haas retires

## Summary
- Roger A. Cregg appointed as Class I director effective Dec 10, 2024; term expires at 2026 annual meeting.
- Cregg brings homebuilding industry experience as former CEO/CFO of AV Homes, PulteGroup, and ServiceMaster.
- Marius A. Haas retired from board on Dec 10, 2024, as previously disclosed.
- Cregg will serve on Audit, Compensation, Corporate Risk & Sustainability, and Nominating & Governance committees.
- Board granted Cregg $165,000 in restricted stock units vesting Dec 10, 2025.

## SEC filing metadata
- accession: 0001193125-24-274528
- form_type: 8-K
- ticker: WLK
- cik: 0001262823
- company_name: WESTLAKE CORP
- filed_at: 2024-12-11T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1262823/000119312524274528/0001193125-24-274528-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1262823/000119312524274528/d923339d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-24-274528
- JSON: https://secwatch.observer/filing/0001193125-24-274528.json
- Plain text: https://secwatch.observer/filing/0001193125-24-274528.txt

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