Lucas Stephen G (CIK 1919175) reported 12 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-03-03). Recent activity: Buy KOP (5,298 shares), Buy KOP (127 shares), Sell KOP (2,536 shares), Buy KOP (5,298 shares), Buy KOP (127 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-03 | Koppers Holdings Inc. (KOP) | SVP, Culture and Engagement | Buy | 5,298 | $0 |
| 2026-03-03 | Koppers Holdings Inc. (KOP) | SVP, Culture and Engagement | Buy | 127 | $0 |
| 2026-03-03 | Koppers Holdings Inc. (KOP) | SVP, Culture and Engagement | Sell | 2,536 | $94,441 |
| 2026-03-02 | Koppers Holdings Inc. (KOP) | SVP, Culture and Engagement | Buy | 5,298 | $0 |
| 2026-03-02 | Koppers Holdings Inc. (KOP) | SVP, Culture and Engagement | Buy | 127 | $0 |
| 2026-03-02 | Koppers Holdings Inc. (KOP) | SVP, Culture and Engagement | Sell | 2,536 | $94,441 |
| 2026-01-06 | Koppers Holdings Inc. (KOP) | SVP, Culture and Engagement | Buy | 6,692 | $0 |
| 2026-01-06 | Koppers Holdings Inc. (KOP) | SVP, Culture and Engagement | Buy | 3,421 | $0 |
| 2026-01-06 | Koppers Holdings Inc. (KOP) | SVP, Culture and Engagement | Buy | 156 | $0 |
| 2026-01-06 | Koppers Holdings Inc. (KOP) | SVP, Culture and Engagement | Sell | 4,417 | $118,950 |
| 2025-04-14 | Koppers Holdings Inc. (KOP) | SVP, Culture and Engagement | Buy | 140 | $0 |
| 2025-04-14 | Koppers Holdings Inc. (KOP) | SVP, Culture and Engagement | Sell | 2,743 | $68,328 |
Source: SEC Form 4 filings · as of 2026-03-03