---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-23-009213"
form_type: "8-K"
ticker: "KOP"
cik: "0001315257"
company_name: "Koppers Holdings Inc."
filed_at: "2023-03-22T23:59:59+00:00"
generated_at: "2026-06-17T21:07:31.194011+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "high"
source: SEC EDGAR
---

# Koppers expands board to nine, elects Andrew D. Sandifer as director

## Summary
- Board increased from eight to nine directors; Andrew D. Sandifer elected effective March 20, 2023.
- Sandifer is EVP and CFO of FMC Corporation (global agricultural sciences) and previously held senior roles at ARAMARK, Rohm and Haas, and Boston Consulting Group.
- Board determined Sandifer is independent under NYSE listing standards; he will stand for election at the 2023 Annual Meeting.
- Sandifer will receive standard non-employee director compensation as described in Koppers' 2022 proxy statement.

## SEC filing metadata
- accession: 0000950170-23-009213
- form_type: 8-K
- ticker: KOP
- cik: 0001315257
- company_name: Koppers Holdings Inc.
- filed_at: 2023-03-22T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1315257/000095017023009213/0000950170-23-009213-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1315257/000095017023009213/kop-20230320.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-23-009213
- JSON: https://secwatch.observer/filing/0000950170-23-009213.json
- Plain text: https://secwatch.observer/filing/0000950170-23-009213.txt

## Key facts
- Executive change
  Andrew D. Sandifer was elected as director at Koppers Holdings Inc..
  - Action: elected
  - Role: director
  source text: On March 20, 2023, the Board of Directors of Koppers Holdings Inc. (the “Company”) increased the size of the Board of Directors (the “Board”) from eight to nine directors and elected Andrew D. Sandifer as a director of the Company.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1315257/000095017023009213/0000950170-23-009213-index.htm

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