Insider · CIK 0001229771
M Leroy Ball
Files at: KOP, ATI. On EDGAR ↗
Reported trades — common stock
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 31, 2026 GForm 4 → | Sep 1, 4:23 pm EDT | Koppers Holdings Inc.KOP | 200 | — | — | 429,355 | — | |
| Aug 31, 2026 SForm 4 → | Sep 1, 4:23 pm EDT | Koppers Holdings Inc.KOP | 4,000 | $45.96 | $183,840 | 429,555 | −0.92% | |
| Aug 19, 2026 SForm 4 → | Aug 20, 4:08 pm EDT | Koppers Holdings Inc.KOP | 3,000 | $45.84 | $137,520 | 433,555 | −0.69% | |
| Jun 18, 2026 SForm 4 → | Jun 23, 6:27 pm EDT | Koppers Holdings Inc.KOP | 3,412 | $43.90 | $149,787 | 436,243 | −0.78% | |
| Jun 11, 2026 GForm 4 → | Jun 15, 4:10 pm EDT | Koppers Holdings Inc.KOP | 300 | — | — | 439,655 | — | |
| Jun 11, 2026 SForm 4 → | Jun 15, 4:10 pm EDT | Koppers Holdings Inc.KOP | 4,141 | $41.34 | $171,189 | 439,955 | −0.93% |
Reported trades — derivatives (options, RSUs, warrants)
No reported derivative activity in this period.