---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-376996"
form_type: "8-K"
ticker: "WLK"
cik: "0001262823"
company_name: "WESTLAKE CORP"
filed_at: "2026-08-31T21:00:37+00:00"
generated_at: "2026-08-31T21:02:20.618703+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# Westlake names Tommy E. Darby VP & Chief Accounting Officer; Holy moves to IR

## Summary
- Darby, 45, appointed VP & Chief Accounting Officer effective Aug 31, 2026, succeeding Jeffrey A. Holy.
- Prior CAO at Pactiv Evergreen (now Novolex) Aug 2022-Apr 2025; earlier roles at Valaris and Deloitte.
- Compensation: $440k salary, 45% annual target bonus, 8% quarterly target bonus, 90% LTI target.
- Sign-on RSU award with $135k grant date fair value, vesting Aug 31, 2029.
- Holy transitions to VP, Finance and Investor Relations effective with Darby's appointment.

## SEC filing metadata
- accession: 0001193125-26-376996
- form_type: 8-K
- ticker: WLK
- cik: 0001262823
- company_name: WESTLAKE CORP
- filed_at: 2026-08-31T21:00:37+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1262823/000119312526376996/0001193125-26-376996-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1262823/000119312526376996/d437911d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-376996
- JSON: https://secwatch.observer/filing/0001193125-26-376996.json
- Plain text: https://secwatch.observer/filing/0001193125-26-376996.txt

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