KOPNYSELumber & Wood Products (No Furniture)Fiscal year ends December 31
Koppers Holdings Inc.
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 6, 2026
$42.91−0.41 (-0.95%)
Close on Oct 19, 2026
- Market cap
- $820.78M
- P/E (TTM)
- –
- Dividend yield
- 0.75%
SEC filings
40 of Koppers's most recent filings on SEC EDGAR
| Document | Form | Period | Filed | Source |
|---|---|---|---|---|
| Quarterly report | 10-Q | Jun 30, 2026 | Aug 6, 2026 | SEC EDGAR |
| Current report | 8-K | Aug 6, 2026 | Aug 6, 2026 | SEC EDGAR |
| Current report | 8-K | May 11, 2026 | May 11, 2026 | SEC EDGAR |
| Quarterly report | 10-Q | Mar 31, 2026 | May 8, 2026 | SEC EDGAR |
| Current report | 8-K | May 7, 2026 | May 8, 2026 | SEC EDGAR |
| Proxy statement | DEF 14A | May 7, 2026 | Mar 27, 2026 | SEC EDGAR |
| Annual report | 10-K | Dec 31, 2025 | Feb 26, 2026 | SEC EDGAR |
| Current report | 8-K | Feb 26, 2026 | Feb 26, 2026 | SEC EDGAR |
| Current report | 8-K | Jan 5, 2026 | Jan 9, 2026 | SEC EDGAR |
| Quarterly report | 10-Q | Sep 30, 2025 | Nov 7, 2025 | SEC EDGAR |
| Current report | 8-K | Nov 7, 2025 | Nov 7, 2025 | SEC EDGAR |
| Current report | 8-K | Nov 5, 2025 | Nov 5, 2025 | SEC EDGAR |
| Quarterly report | 10-Q | Jun 30, 2025 | Aug 8, 2025 | SEC EDGAR |
| Current report | 8-K | Aug 8, 2025 | Aug 8, 2025 | SEC EDGAR |
| Current report | 8-K | Jun 17, 2025 | Jun 18, 2025 | SEC EDGAR |
| Current report | 8-K | May 22, 2025 | May 29, 2025 | SEC EDGAR |
| Quarterly report | 10-Q | Mar 31, 2025 | May 9, 2025 | SEC EDGAR |
| Current report | 8-K | May 8, 2025 | May 9, 2025 | SEC EDGAR |
| Proxy statement | DEF 14A | May 8, 2025 | Mar 28, 2025 | SEC EDGAR |
| Annual report | 10-K | Dec 31, 2024 | Feb 27, 2025 | SEC EDGAR |
| Current report | 8-K | Feb 27, 2025 | Feb 27, 2025 | SEC EDGAR |
| Current report | 8-K | Dec 17, 2024 | Dec 17, 2024 | SEC EDGAR |
| Current report | 8-K | Dec 5, 2024 | Dec 9, 2024 | SEC EDGAR |
| Current report | 8-K | Dec 5, 2024 | Dec 5, 2024 | SEC EDGAR |
| Quarterly report | 10-Q | Sep 30, 2024 | Nov 8, 2024 | SEC EDGAR |
| Current report | 8-K | Nov 8, 2024 | Nov 8, 2024 | SEC EDGAR |
| Quarterly report | 10-Q | Jun 30, 2024 | Aug 8, 2024 | SEC EDGAR |
| Current report | 8-K | Aug 8, 2024 | Aug 8, 2024 | SEC EDGAR |
| Quarterly report | 10-Q | Mar 31, 2024 | May 3, 2024 | SEC EDGAR |
| Current report | 8-K | May 2, 2024 | May 3, 2024 | SEC EDGAR |
| Current report | 8-K | Apr 12, 2024 | Apr 15, 2024 | SEC EDGAR |
| Proxy statement | DEF 14A | May 2, 2024 | Apr 2, 2024 | SEC EDGAR |
| Annual report | 10-K | Dec 31, 2023 | Feb 28, 2024 | SEC EDGAR |
| Current report | 8-K | Feb 28, 2024 | Feb 28, 2024 | SEC EDGAR |
| Current report | 8-K | Feb 13, 2024 | Feb 13, 2024 | SEC EDGAR |
| Current report | 8-K | Jan 1, 2024 | Jan 2, 2024 | SEC EDGAR |
| Quarterly report | 10-Q | Sep 30, 2023 | Nov 3, 2023 | SEC EDGAR |
| Current report | 8-K | Nov 3, 2023 | Nov 3, 2023 | SEC EDGAR |
| Current report | 8-K | Oct 11, 2023 | Oct 12, 2023 | SEC EDGAR |
| Current report | 8-K | Sep 14, 2023 | Sep 14, 2023 | SEC EDGAR |