BlackRock, Inc. 13D and 13G filings for Koppers Holdings Inc.:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2024-11-08 5:31 pm Unchanged | 2024-09-30 | 13G | Koppers Holdings Inc. KOP | BlackRock Inc. BLK | 3,818,899 18.600% | 0 (Unchanged) | Filing |
| 2024-10-18 3:31 pm Purchase | 2024-09-30 | 13G | Koppers Holdings Inc. KOP | BlackRock Inc. BLK | 3,818,899 18.600% | 397,091 (+11.60%) | Filing |
| 2024-01-22 2:03 pm Sale | 2023-12-31 | 13G | Koppers Holdings Inc. KOP | BlackRock Inc. BLK | 3,421,808 16.400% | -95,287 (-2.71%) | Filing |
| 2023-01-26 08:52 am Unchanged | 2022-12-31 | 13G | Koppers Holdings Inc. KOP | BlackRock Inc. BLK | 3,517,095 16.800% | 0 (Unchanged) | Filing |
| 2023-01-20 5:17 pm Purchase | 2022-12-31 | 13G | Koppers Holdings Inc. KOP | BlackRock Inc. BLK | 3,517,095 16.800% | 62,306 (+1.80%) | Filing |
| 2022-01-28 1:54 pm Purchase | 2021-12-31 | 13G | Koppers Holdings Inc. KOP | BlackRock Inc. BLK | 3,454,789 16.200% | 247,530 (+7.72%) | Filing |
| 2021-01-26 2:22 pm Purchase | 2020-12-31 | 13G | Koppers Holdings Inc. KOP | BlackRock Inc. BLK | 3,207,259 15.200% | 141,782 (+4.63%) | Filing |
| 2020-02-04 12:16 pm Sale | 2019-12-31 | 13G | Koppers Holdings Inc. KOP | BlackRock Inc. BLK | 3,065,477 14.800% | -223,108 (-6.78%) | Filing |