| Stock | Role | Class | Num Shares | Value | Price $ | Report Date | Ownership |
|---|---|---|---|---|---|---|---|
| Koppers Holdings Inc. | Chief Accounting Officer | Common Stock | 31.2K | $989K | $31.72 | 03 Jan 2025 | Direct |
| Koppers Holdings Inc. | Chief Accounting Officer | Restricted Stock Units | 0 | $0 | $31.72 | 03 Jan 2025 | Direct |
| Koppers Holdings Inc. | Chief Accounting Officer | Dividend Equivalent Rights | 168 | 16 Dec 2025 | Direct |
| Symbol | Company | Period | Transactions | Value $ | Form Type | Role | Filing Time |
|---|---|---|---|---|---|---|---|
| KOP | Koppers Holdings Inc. | 16 Dec 2025 | 1 | $0 | 4 | Chief Accounting Officer | 17 Dec 2025, 17:58 |
| KOP | Koppers Holdings Inc. | 03 Jan 2025 | 8 | -$100K | 4 | Chief Accounting Officer | 07 Jan 2025, 15:58 |
| KOP | Koppers Holdings Inc. | 16 Dec 2024 | 1 | $0 | 4 | Chief Accounting Officer | 18 Dec 2024, 16:22 |
| KOP | Koppers Holdings Inc. | 12 Nov 2024 | 1 | -$112K | 4 | Chief Accounting Officer | 13 Nov 2024, 16:25 |
| KOP | Koppers Holdings Inc. | 01 Mar 2024 | 3 | -$35.2K | 4 | Chief Accounting Officer | 05 Mar 2024, 16:53 |
| KOP | Koppers Holdings Inc. | 04 Jan 2024 | 9 | -$123K | 4 | Chief Accounting Officer | 08 Jan 2024, 19:43 |
| KOP | Koppers Holdings Inc. | 20 Dec 2023 | 1 | -$49.8K | 4 | Chief Accounting Officer | 20 Dec 2023, 16:41 |
| KOP | Koppers Holdings Inc. | 12 Dec 2023 | 1 | $0 | 4 | Chief Accounting Officer | 14 Dec 2023, 17:02 |
| KOP | Koppers Holdings Inc. | 07 Aug 2023 | 1 | -$115K | 4 | Chief Accounting Officer | 09 Aug 2023, 16:38 |
| KOP | Koppers Holdings Inc. | 03 Mar 2023 | 6 | -$37K | 4 | Chief Accounting Officer | 07 Mar 2023, 16:23 |
| KOP | Koppers Holdings Inc. | 05 Jan 2023 | 6 | -$32.4K | 4 | Chief Accounting Officer | 09 Jan 2023, 16:57 |
| KOP | Koppers Holdings Inc. | 03 Jan 2023 | 2 | $0 | 4 | Chief Accounting Officer | 05 Jan 2023, 17:48 |
| KOP | Koppers Holdings Inc. | 18 Mar 2022 | 1 | -$29.5K | 4 | Chief Accounting Officer | 21 Mar 2022, 16:49 |
| KOP | Koppers Holdings Inc. | 04 Mar 2022 | 3 | -$35.6K | 4 | Chief Accounting Officer | 08 Mar 2022, 14:19 |
| KOP | Koppers Holdings Inc. | 03 Mar 2022 | 1 | -$20.3K | 4 | Chief Accounting Officer | 07 Mar 2022, 15:11 |
| KOP | Koppers Holdings Inc. | 02 Mar 2022 | 1 | -$3.28K | 4 | Chief Accounting Officer | 04 Mar 2022, 15:57 |
| KOP | Koppers Holdings Inc. | 05 Jan 2022 | 2 | $0 | 4/A | Chief Accounting Officer | 17 Feb 2022, 14:08 |
| KOP | Koppers Holdings Inc. | 04 Jan 2022 | 1 | $0 | 4 | Chief Accounting Officer | 06 Jan 2022, 13:10 |