Sullivan James A. (CIK 1450800) reported 10 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-08-12). Recent activity: Sell KOP (7,500 shares), Sell KOP (79,900 shares), Sell KOP (100 shares), Buy KOP (19,264 shares), Buy KOP (466 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-12 | Koppers Holdings Inc. (KOP) | President and CTO | Sell | 7,500 | $375,000 |
| 2026-08-11 | Koppers Holdings Inc. (KOP) | President and CTO | Sell | 79,900 | $4.0M |
| 2026-08-11 | Koppers Holdings Inc. (KOP) | President and CTO | Sell | 100 | $5,122 |
| 2026-03-02 | Koppers Holdings Inc. (KOP) | President and CTO | Buy | 19,264 | $0 |
| 2026-03-02 | Koppers Holdings Inc. (KOP) | President and CTO | Buy | 466 | $0 |
| 2026-03-02 | Koppers Holdings Inc. (KOP) | President and CTO | Sell | 8,589 | $319,854 |
| 2026-01-06 | Koppers Holdings Inc. (KOP) | President and CTO | Buy | 21,724 | $0 |
| 2026-01-06 | Koppers Holdings Inc. (KOP) | President and CTO | Buy | 12,442 | $0 |
| 2026-01-06 | Koppers Holdings Inc. (KOP) | President and CTO | Buy | 622 | $0 |
| 2026-01-06 | Koppers Holdings Inc. (KOP) | President and CTO | Sell | 13,658 | $367,810 |
Source: SEC Form 4 filings · as of 2026-08-12