secwatch.observer — SEC 8-K summary
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Issuer:     Koppers Holdings Inc. (KOP)
CIK:        0001315257
Form:       8-K/A
Filed at:   2026-05-07T23:59:59+00:00
Accession:  0001315257-26-000030
Event type: other
Sentiment:  neutral
Materiality: 0.15
Item codes: 5.02, 9.01
LLM model:  deepseek-v4-flash:cloud@v2

Koppers Holdings appoints Laura Posadas to three board committees
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- Laura J. Posadas appointed to Audit, Management Development and Compensation, and Strategy and Risk Committees effective May 7, 2026.
- The appointment follows her election to the Board on November 5, 2025.
- No other changes to board composition or committee structure.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1315257/000131525726000030/0001315257-26-000030-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1315257/000131525726000030/kop-20251105.htm
  HTML page:      https://secwatch.observer/filing/0001315257-26-000030

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer