Insider · CIK 0001463649
Xudong Feng
Files at: KOP. On EDGAR ↗
Reported trades — common stock
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Jun 3, 2026 GForm 4 → | Jun 4, 4:05 pm EDT | Koppers Holdings Inc.KOP | 5,695 | — | — | 26,489 | — |
Reported trades — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 14, 2026 AForm 4 → | Sep 15, 4:19 pm EDT | Koppers Holdings Inc.KOP | 33 | — | — | 445 | — | |
| Jun 15, 2026 AForm 4 → | Jun 17, 4:09 pm EDT | Koppers Holdings Inc.KOP | 34 | — | — | 412 | — |