WILKERSON SONJA MICHELLE
SEC insider (Form 3/4/5 filer). CIK 0001245155. Director at Koppers Holdings Inc. (KOP). 16 reported Form 4/5 transactions since Sep 2024; latest on Sep 14, 2026. Located in PITTSBURGH, PA.
Companies WILKERSON SONJA MICHELLE has filed insider reports for
- Koppers Holdings Inc. (KOP): Director
WILKERSON SONJA MICHELLE
CIK: 0001245155
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
Koppers Holdings Inc.
Discretionary Trading P&L
Holdings
Transaction History (16 total)
- Sep 14, 2026KOP
Koppers Holdings Inc.
AwardDirectDividend Equivalent Rights
29 shares- - Jun 15, 2026KOP
Koppers Holdings Inc.
AwardDirectDividend Equivalent Rights
30 shares- - May 7, 2026KOP
Koppers Holdings Inc.
AwardDirectRestricted Stock Units
3.3K shares- - Mar 23, 2026KOP
Koppers Holdings Inc.
AwardDirectDividend Equivalent Rights
50 shares- - Mar 23, 2026KOP
Koppers Holdings Inc.
AwardDirectDividend Equivalent Rights
25 shares- - Dec 16, 2025KOP
Koppers Holdings Inc.
AwardDirectDividend Equivalent Rights
28 shares- - Sep 15, 2025KOP
Koppers Holdings Inc.
AwardDirectDividend Equivalent Rights
28 shares- - May 8, 2025KOP
Koppers Holdings Inc.
AwardDirectRestricted Stock Units
4.8K shares- - Mar 24, 2025KOP
Koppers Holdings Inc.
AwardDirectDividend Equivalent Rights
22 shares- - Mar 24, 2025KOP
Koppers Holdings Inc.
AwardDirectDividend Equivalent Rights
17 shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Sep 14, 2026 | KOP Koppers Holdings Inc. | Award Dividend Equivalent Rights | 29 | - | - | Direct |
| Jun 15, 2026 | KOP Koppers Holdings Inc. | Award Dividend Equivalent Rights | 30 | - | - | Direct |
| May 7, 2026 | KOP Koppers Holdings Inc. | Award Restricted Stock Units | 3,280 | - | - | Direct |
| Mar 23, 2026 | KOP Koppers Holdings Inc. | Award Dividend Equivalent Rights | 50 | - | - | Direct |
| Mar 23, 2026 | KOP Koppers Holdings Inc. | Award Dividend Equivalent Rights | 25 | - | - | Direct |
| Dec 16, 2025 | KOP Koppers Holdings Inc. | Award Dividend Equivalent Rights | 28 | - | - | Direct |
| Sep 15, 2025 | KOP Koppers Holdings Inc. | Award Dividend Equivalent Rights | 28 | - | - | Direct |
| May 8, 2025 | KOP Koppers Holdings Inc. | Award Restricted Stock Units | 4,778 | - | - | Direct |
| Mar 24, 2025 | KOP Koppers Holdings Inc. | Award Dividend Equivalent Rights | 22 | - | - | Direct |
| Mar 24, 2025 | KOP Koppers Holdings Inc. | Award Dividend Equivalent Rights | 17 | - | - | Direct |
1-10 of 16 transactions