 Koppers Holdings Inc.KOP | $19M444.1k shares | SellMay 13, 2026 | $113.1K2.7k shares | $42.55 | -- |
| Koppers Holdings Inc.KOP | --446.3k shares | Grant / ExerciseMar 17, 2026 | Disclosure amount unavailable1.2k shares | -- | -- |
| Koppers Holdings Inc.KOP | $17M447.5k shares | SellMar 17, 2026 | $94.4K2.5k shares | $37.91 | -- |
| Koppers Holdings Inc.KOP | --449.9k shares | Grant / ExerciseMar 2, 2026 | Disclosure amount unavailable325 shares | -- | -- |
| Koppers Holdings Inc.KOP | $17M450.3k shares | SellMar 2, 2026 | $139.3K3.8k shares | $37.02 | -- |
| Koppers Holdings Inc.KOP | $17M454.4k shares | SellMar 2, 2026 | $79.8K2.2k shares | $36.53 | -- |
| Koppers Holdings Inc.KOP | $17M454k shares | SellMar 2, 2026 | $12.3K328 shares | $37.45 | -- |
| Koppers Holdings Inc.KOP | $17M456.5k shares | Grant / ExerciseFeb 26, 2026 | $828.1K22.2k shares | $37.24 | -- |
| Koppers Holdings Inc.KOP | --454 shares | Grant / ExerciseFeb 26, 2026 | Disclosure amount unavailable1.2k shares | -- | -- |
| Koppers Holdings Inc.KOP | --1.7k shares | Grant / ExerciseFeb 26, 2026 | Disclosure amount unavailable1.2k shares | -- | -- |
| Koppers Holdings Inc.KOP | --477.6k shares | Grant / ExerciseFeb 26, 2026 | Disclosure amount unavailable50k shares | -- | -- |
| Koppers Holdings Inc.KOP | $15M427.5k shares | Grant / ExerciseFeb 18, 2026 | $781.2K22.3k shares | $35.06 | -- |
| Koppers Holdings Inc.KOP | $030.7k shares | Grant / ExerciseFeb 18, 2026 | $556.5K30.7k shares | $18.11 | -- |
 ATI Inc.ATI | --33.8k shares | Grant / ExerciseFeb 17, 2026 | Disclosure amount unavailable350 shares | -- | -- |
| Koppers Holdings Inc.KOP | $14M419.1k shares | Grant / ExerciseFeb 10, 2026 | $738.4K22.2k shares | $33.20 | -- |
| Koppers Holdings Inc.KOP | $556k30.7k shares | Grant / ExerciseFeb 10, 2026 | $543.3K30k shares | $18.11 | -- |
| Koppers Holdings Inc.KOP | $11M411.3k shares | Grant / ExerciseJan 5, 2026 | $1.1M39.8k shares | $26.93 | -- |
| Koppers Holdings Inc.KOP | --64.6k shares | Grant / ExerciseJan 5, 2026 | Disclosure amount unavailable64.6k shares | -- | -- |
| Koppers Holdings Inc.KOP | --454 shares | Grant / ExerciseJan 5, 2026 | Disclosure amount unavailable2.1k shares | -- | -- |
| Koppers Holdings Inc.KOP | --384.5k shares | Grant / ExerciseJan 5, 2026 | Disclosure amount unavailable27.2k shares | -- | -- |
| Koppers Holdings Inc.KOP | --2.5k shares | Grant / ExerciseJan 2, 2026 | Disclosure amount unavailable519 shares | -- | -- |
| Koppers Holdings Inc.KOP | --12.4k shares | Grant / ExerciseJan 2, 2026 | Disclosure amount unavailable12.4k shares | -- | -- |
| Koppers Holdings Inc.KOP | --64.6k shares | Grant / ExerciseJan 2, 2026 | Disclosure amount unavailable16k shares | -- | -- |
| Koppers Holdings Inc.KOP | --2k shares | Grant / ExerciseDec 16, 2025 | Disclosure amount unavailable1.1k shares | -- | -- |
| ATI Inc.ATI | --34.2k shares | Grant / ExerciseNov 19, 2025 | Disclosure amount unavailable185 shares | -- | -- |
| Koppers Holdings Inc.KOP | $11M357.3k shares | SellAug 15, 2025 | $74.6K2.4k shares | $30.48 | -- |
| Koppers Holdings Inc.KOP | --359.4k shares | Grant / ExerciseJun 18, 2025 | Disclosure amount unavailable834 shares | -- | -- |
| Koppers Holdings Inc.KOP | --360.3k shares | Grant / ExerciseMay 21, 2025 | Disclosure amount unavailable1.8k shares | -- | -- |
| ATI Inc.ATI | --34.4k shares | Grant / ExerciseMay 20, 2025 | Disclosure amount unavailable1.7k shares | -- | -- |
| Koppers Holdings Inc.KOP | $11M362k shares | SellMar 19, 2025 | $95.6K3.3k shares | $29.15 | -- |
| Koppers Holdings Inc.KOP | $11M361.5k shares | SellMar 19, 2025 | $15.2K505 shares | $30.07 | -- |
| Koppers Holdings Inc.KOP | $11M365.3k shares | Grant / ExerciseFeb 20, 2025 | $137.7K4.5k shares | $30.58 | -- |
| Koppers Holdings Inc.KOP | $06k shares | Grant / ExerciseFeb 20, 2025 | $105.4K6k shares | $17.57 | -- |
| Koppers Holdings Inc.KOP | $12M363.8k shares | Grant / ExerciseJan 3, 2025 | $1.0M32.6k shares | $31.72 | -- |
| Koppers Holdings Inc.KOP | --51.9k shares | Grant / ExerciseJan 3, 2025 | Disclosure amount unavailable51.9k shares | -- | -- |
| Koppers Holdings Inc.KOP | --904 shares | Grant / ExerciseJan 3, 2025 | Disclosure amount unavailable1.4k shares | -- | -- |
| Koppers Holdings Inc.KOP | --2.3k shares | Grant / ExerciseJan 3, 2025 | Disclosure amount unavailable675 shares | -- | -- |
| Koppers Holdings Inc.KOP | --48.7k shares | Grant / ExerciseJan 3, 2025 | Disclosure amount unavailable19.9k shares | -- | -- |
| Koppers Holdings Inc.KOP | --51.9k shares | Grant / ExerciseJan 3, 2025 | Disclosure amount unavailable19.9k shares | -- | -- |
| Koppers Holdings Inc.KOP | --343.1k shares | Grant / ExerciseJan 3, 2025 | Disclosure amount unavailable28.8k shares | -- | -- |
| Koppers Holdings Inc.KOP | --1.6k shares | Grant / ExerciseDec 16, 2024 | Disclosure amount unavailable701 shares | -- | -- |
| Koppers Holdings Inc.KOP | $12M314.4k shares | SellNov 19, 2024 | $222.6K6k shares | $37.26 | -- |
| Koppers Holdings Inc.KOP | $12M314.3k shares | SellNov 19, 2024 | $1.0K27 shares | $38.01 | -- |
| Koppers Holdings Inc.KOP | --314.3k shares | Grant / ExerciseNov 19, 2024 | Disclosure amount unavailable804 shares | -- | -- |
| Koppers Holdings Inc.KOP | $105k6k shares | Grant / ExerciseNov 19, 2024 | $105.4K6k shares | $17.57 | -- |
| Koppers Holdings Inc.KOP | $12M316.9k shares | SellNov 15, 2024 | $152.8K4.2k shares | $36.38 | -- |
| Koppers Holdings Inc.KOP | $211k12k shares | Grant / ExerciseNov 15, 2024 | $105.4K6k shares | $17.57 | -- |
| Koppers Holdings Inc.KOP | $12M315.1k shares | SellNov 15, 2024 | $67.7K1.8k shares | $37.59 | -- |
| Koppers Holdings Inc.KOP | $12M315.1k shares | SellNov 14, 2024 | $192.7K5.1k shares | $37.77 | -- |
| Koppers Holdings Inc.KOP | $316k18k shares | Grant / ExerciseNov 14, 2024 | $89.7K5.1k shares | $17.57 | -- |
| Koppers Holdings Inc.KOP | $12M315.1k shares | SellNov 13, 2024 | $155.1K4.1k shares | $37.81 | -- |
| Koppers Holdings Inc.KOP | $5.6M319.2k shares | Grant / ExerciseNov 13, 2024 | $72.1K4.1k shares | $17.57 | -- |
| Koppers Holdings Inc.KOP | $12M316.1k shares | SellNov 12, 2024 | $153.1K4k shares | $37.85 | -- |
| Koppers Holdings Inc.KOP | $478k27.2k shares | Grant / ExerciseNov 12, 2024 | $87.8K5k shares | $17.57 | -- |
| Koppers Holdings Inc.KOP | $12M315.1k shares | SellNov 12, 2024 | $36.5K955 shares | $38.22 | -- |