Posadas Laura J (CIK 2092070) reported 3 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-05-11). Recent activity: Buy KOP (11 shares), Buy KOP (3,280 shares), Buy KOP (2,240 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-11 | Koppers Holdings Inc. (KOP) | Director | Buy | 11 | $0 |
| 2026-05-11 | Koppers Holdings Inc. (KOP) | Director | Buy | 3,280 | $0 |
| 2025-11-07 | Koppers Holdings Inc. (KOP) | Director | Buy | 2,240 | $0 |
Source: SEC Form 4 filings · as of 2026-05-11