---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-25-105486"
form_type: "8-K"
ticker: "KOP"
cik: "0001315257"
company_name: "Koppers Holdings Inc."
filed_at: "2025-08-08T23:59:59+00:00"
generated_at: "2026-05-17T16:11:59.775820+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Koppers Q2 sales fall 10% to $504.8M; GAAP EPS drops to $0.81, adjusted EPS rises to $1.48

## Summary
- Sales $504.8M down 10.4% YoY; net income $16.4M down 38.8% from $26.8M.
- Diluted EPS $0.81 vs. $1.25; adjusted EPS $1.48 vs. $1.36 (+8.8%).
- Adjusted EBITDA $77.1M essentially flat vs. $77.5M; YTD capex $26.4M vs. $43.4M.
- 2025 outlook revised; no quantitative details provided in the release.

## SEC filing metadata
- accession: 0000950170-25-105486
- form_type: 8-K
- ticker: KOP
- cik: 0001315257
- company_name: Koppers Holdings Inc.
- filed_at: 2025-08-08T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1315257/000095017025105486/0000950170-25-105486-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1315257/000095017025105486/kop-20250808.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-25-105486
- JSON: https://secwatch.observer/filing/0000950170-25-105486.json
- Plain text: https://secwatch.observer/filing/0000950170-25-105486.txt

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