Company · CIK 0001315257 · SIC 2400 — Lumber & Wood Products (No Furniture) · NYSE
Koppers Holdings Inc. · KOP
Insider activity reported against this company. All insider holders · On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 31, 2026 GForm 4 → | Sep 1, 4:23 pm EDT | M Leroy BallCEO, Director | 200 | — | — | 429,355 | — | |
| Aug 31, 2026 SForm 4 → | Sep 1, 4:23 pm EDT | M Leroy BallCEO, Director | 4,000 | $45.96 | $183,840 | 429,555 | −0.92% |
Reported at this company — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 14, 2026 AForm 4 → | Sep 15, 4:20 pm EDT | Sonja Michelle WilkersonDirector | 29 | — | — | 385 | — | |
| Sep 14, 2026 AForm 4 → | Sep 15, 4:19 pm EDT | Xudong FengDirector | 33 | — | — | 445 | — | |
| Sep 14, 2026 AForm 4 → | Sep 15, 4:17 pm EDT | David L MotleyDirector | 20 | — | — | 316 | — | |
| Sep 14, 2026 AForm 4 → | Sep 15, 4:15 pm EDT | Andrew D SandiferDirector | 14 | — | — | 117 | — |