KOP · Koppers Holdings Inc.
$49.21
-0.99 (-1.97%)
At close · Jul 29
Market Cap
$965.44M
Shares
19.23M
The company's filings as submitted to the SEC's EDGAR system — 10-K, 10-Q, 8-K, proxy statements and more — listed most recent first.
| Type | Filing Date | Period | Open |
|---|---|---|---|
| 8-K | 2026-05-11 | — | |
| 8-K | 2026-05-08 | 2026-05-07 | |
| 10-Q | 2026-05-08 | 2026-03-31 | |
| 8-K/A | 2026-05-07 | 2025-11-05 | |
| DEF 14A | 2026-03-27 | 2026-05-07 | |
| 8-K/A | 2026-03-18 | 2026-01-05 | |
| 8-K | 2026-02-26 | — | |
| 10-K | 2026-02-26 | 2025-12-31 | |
| 8-K | 2026-01-09 | 2026-01-05 | |
| Investor Event Transcript | 2025-12-31 | — | |
| 8-K/A | 2025-12-03 | 2024-11-08 | |
| 10-Q | 2025-11-07 | 2025-09-30 | |
| 8-K | 2025-11-07 | — | |
| 8-K | 2025-11-05 | — | |
| 10-Q | 2025-08-08 | 2025-06-30 | |
| 8-K | 2025-08-08 | — | |
| 8-K | 2025-06-18 | 2025-06-17 | |
| 8-K | 2025-05-29 | 2025-05-22 | |
| 8-K | 2025-05-09 | 2025-05-08 | |
| 10-Q | 2025-05-09 | 2025-03-31 | |
| DEF 14A | 2025-03-28 | 2025-05-08 | |
| 8-K | 2025-02-27 | — | |
| 10-K | 2025-02-27 | 2024-12-31 | |
| 8-K | 2024-12-17 | — | |
| 8-K | 2024-12-09 | 2024-12-05 | |
| 8-K | 2024-12-05 | — | |
| 10-Q | 2024-11-08 | 2024-09-30 | |
| 8-K | 2024-11-08 | — | |
| 8-K | 2024-08-08 | — | |
| 10-Q | 2024-08-08 | 2024-06-30 | |
| 10-Q | 2024-05-03 | 2024-03-31 | |
| 8-K | 2024-05-03 | 2024-05-02 | |
| 8-K/A | 2024-05-02 | — | |
| 8-K | 2024-04-15 | 2024-04-12 | |
| DEF 14A | 2024-04-02 | 2024-05-02 | |
| 10-K | 2024-02-28 | 2023-12-31 | |
| 8-K | 2024-02-28 | — | |
| 8-K | 2024-02-13 | — | |
| 8-K | 2024-01-02 | 2024-01-01 | |
| 8-K | 2023-11-03 | — | |
| 10-Q | 2023-11-03 | 2023-09-30 | |
| 8-K | 2023-10-12 | 2023-10-11 | |
| 8-K | 2023-09-14 | — | |
| 8-K | 2023-08-03 | 2023-08-02 | |
| 8-K | 2023-08-03 | — | |
| 10-Q | 2023-08-03 | 2023-06-30 | |
| 10-Q | 2023-05-05 | 2023-03-31 | |
| 8-K | 2023-05-05 | 2023-05-04 | |
| 8-K/A | 2023-05-04 | — | |
| 8-K | 2023-04-11 | 2023-04-10 |
Showing 1–50 of 101 filings
Key facts
CIK
1315257
CUSIP
50060P106
13F (30d)
38 filings
38 filers
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