General In this report, unless otherwise noted or the context otherwise requires, (i) the term Koppers, Koppers Holdings, the Company, we or us refers to Koppers Holdings Inc. and its consolidated subsidiaries, (ii) the term KH refers to Koppers Holdings Inc. and not any of its subsidiaries and (iii) the term KI refers to Koppers Inc. and not any of its subsidiaries. Koppers Inc. is a wholly-owned subsidiary of Koppers Holdings Inc. Koppers Holdings Inc. has substantially no operations independe...
Q2 FY2026 — expected 2026-08-07
| Filed | Period | Accession | Source | Full Text |
|---|---|---|---|---|
| 2026-02-26 | 2025-12-31 | 0001315257-26-000012 | EDGAR | 54K words |
| 2025-02-27 | 2024-12-31 | 0000950170-25-028542 | EDGAR | — |
| 2024-02-28 | 2023-12-31 | 0000950170-24-021787 | EDGAR | — |
| 2023-02-27 | 2022-12-31 | 0000950170-23-004546 | EDGAR | — |
| 2022-02-23 | 2021-12-31 | 0001564590-22-006039 | EDGAR | — |
| 2021-02-24 | 2020-12-31 | 0001564590-21-007979 | EDGAR | — |
| 2020-02-27 | 2019-12-31 | 0001564590-20-006973 | EDGAR | — |
| 2019-03-01 | 2018-12-31 | 0001564590-19-005736 | EDGAR | — |
| 2018-02-27 | 2017-12-31 | 0001564590-18-003507 | EDGAR | — |
| 2017-02-24 | 2016-12-31 | 0001564590-17-002413 | EDGAR | — |
| Filed | Period | Accession | Source | Full Text |
|---|---|---|---|---|
| 2025-11-07 | 2025-09-30 | 0001315257-25-000012 | EDGAR | 20K words |
| 2025-08-08 | 2025-06-30 | 0000950170-25-105595 | EDGAR | — |
| 2025-05-09 | 2025-03-31 | 0000950170-25-067733 | EDGAR | — |
| 2024-11-08 | 2024-09-30 | 0000950170-24-123804 | EDGAR | — |
| 2024-08-08 | 2024-06-30 | 0000950170-24-093561 | EDGAR | — |
| 2024-05-03 | 2024-03-31 | 0000950170-24-052678 | EDGAR | — |
| 2023-11-03 | 2023-09-30 | 0000950170-23-058640 | EDGAR | — |
| 2023-08-03 | 2023-06-30 | 0000950170-23-037727 | EDGAR | — |
| 2023-05-05 | 2023-03-31 | 0000950170-23-018172 | EDGAR | — |
| 2022-11-04 | 2022-09-30 | 0000950170-22-022129 | EDGAR | — |
| 2022-08-04 | 2022-06-30 | 0001564590-22-027965 | EDGAR | — |
| 2022-05-06 | 2022-03-31 | 0001564590-22-018495 | EDGAR | — |
| Filed | Accession | Source | Full Text |
|---|---|---|---|
| 2026-02-26 | 0001315257-26-000010 | EDGAR | 7K words |
| 2026-01-09 | 0001315257-26-000004 | EDGAR | — |
| 2025-11-07 | 0001315257-25-000010 | EDGAR | — |
| 2025-11-05 | 0001315257-25-000006 | EDGAR | — |
| 2025-08-08 | 0000950170-25-105486 | EDGAR | — |
| 2025-06-18 | 0000950170-25-087681 | EDGAR | — |
| 2025-05-29 | 0000950170-25-078597 | EDGAR | — |
| 2025-05-09 | 0000950170-25-067521 | EDGAR | — |
| 2025-02-27 | 0000950170-25-028398 | EDGAR | — |
| 2024-12-17 | 0001193125-24-280510 | EDGAR | — |
161 total filings indexed. 129 additional filings (S-1, DEF 14A, etc.) View all (JSON) · SEC EDGAR
| CIK | 0001315257 |
| Ticker | KOP |
| Exchange | NYSE |
| SIC | 2400: Lumber & Wood Products (No Furniture) |
| Incorporated | PA |
| Website | https://www.koppers.com |
| Listed | 2006-02-01 |
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