SEC Form 4 research
| Issuer | Koppers Holdings Inc. |
|---|---|
| Tickers | KOP |
| Reporting owners | 54 |
| Officers and directors | 28 |
| Last public filing | 2026-09-15 |
| Available | Trade date | Reporting owners | Code | Shares | Price | Reported value |
|---|---|---|---|---|---|---|
| 2026-09-15 | 2026-09-14 | WILKERSON SONJA MICHELLE | A | 29.35 | $0 | Not reported |
| 2026-09-15 | 2026-09-14 | Feng Xudong | A | 32.95 | $0 | Not reported |
| 2026-09-15 | 2026-09-14 | MOTLEY DAVID L | A | 19.98 | $0 | Not reported |
| 2026-09-15 | 2026-09-14 | Sandifer Andrew D | A | 13.52 | $0 | Not reported |
| 2026-09-01 | 2026-08-31 | BALL M LEROY | S | 4,000 | $45.96 | Not reported |
| 2026-08-20 | 2026-08-19 | BALL M LEROY | S | 3,000 | $45.84 | Not reported |
| 2026-08-13 | 2026-08-12 | Lucas Stephen G | S | 1,308 | $44.55 | Not reported |
| 2026-08-12 | 2026-08-11 | Sullivan James A. | S | 7,500 | $50 | Not reported |
| 2026-08-11 | 2026-08-10 | Pearce Bradley A | S | 2,000 | $51.01 | Not reported |
| 2026-08-11 | 2026-08-07 | Sullivan James A. | S | 100 | $51.22 | Not reported |
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