secwatch.observer — SEC 8-K summary
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Issuer:     WESTLAKE CORP (WLK)
CIK:        0001262823
Form:       8-K
Filed at:   2026-04-02T23:59:59+00:00
Accession:  0001193125-26-139007
Event type: leadership
Sentiment:  neutral
Materiality: 0.60
Item codes: 5.02
LLM model:  deepseek-v4-flash:cloud@v2

Westlake appoints Brian Powers as Performance & Essential Materials Segment Head; Buesinger becomes advisor
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- Robert F. Buesinger steps down as EVP & Segment Head; transitions to Special Advisor to President effective April 2, 2026.
- Brian Powers appointed Senior Vice President, Performance & Essential Materials Segment Head, effective April 2, 2026.
- Succession follows Buesinger's planned retirement; no departure reason beyond retirement mentioned.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1262823/000119312526139007/0001193125-26-139007-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1262823/000119312526139007/d129281d8k.htm
  HTML page:      https://secwatch.observer/filing/0001193125-26-139007

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