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 |
| 2025-04-23 8:57 pm Sale |
2025-03-31 | 13G | Koppers Holdings Inc. KOP |
BlackRock Inc. BLK |
3,591,150 17.800% |
-387,450 (-9.74%) |
Filing |
| 2025-02-05 5:28 pm Purchase |
2024-12-31 | 13G | Koppers Holdings Inc. KOP |
BlackRock Inc. BLK |
3,978,600 19.600% |
159,701 (+4.18%) |
Filing |
| 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 |