WILKERSON SONJA MICHELLE — SEC Form 4 filings
SEC reporting owner CIK 1245155. 14 Form 4 filings on record with FilingPulse; latest filed 2026-09-15.
Transaction summary — filings shown
Covers all 14 filings on record, filed 2024-03-27 to 2026-09-15. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 22.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| Koppers Holdings Inc. (KOP) | Director | 14 | — | — | 22 |
Form 4 filings — WILKERSON SONJA MICHELLE
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-15 | 4 | Koppers Holdings Inc. (KOP) | Grant/award (A): 29.35 (derivative) @ $0 | EDGAR |
| 2026-06-17 | 4 | Koppers Holdings Inc. (KOP) | Grant/award (A): 30.35 (derivative) @ $0 | EDGAR |
| 2026-05-11 | 4 | Koppers Holdings Inc. (KOP) | Grant/award (A): 3,280 (derivative) @ $0 | EDGAR |
| 2026-03-25 | 4 | Koppers Holdings Inc. (KOP) | Grant/award (A): 50 (derivative) @ $0 · Grant/award (A): 25.35 (derivative) @ $0 | EDGAR |
| 2025-12-17 | 4 | Koppers Holdings Inc. (KOP) | Grant/award (A): 28.34 (derivative) @ $0 | EDGAR |
| 2025-09-17 | 4 | Koppers Holdings Inc. (KOP) | Grant/award (A): 28.25 (derivative) @ $0 | EDGAR |
| 2025-05-09 | 4 | Koppers Holdings Inc. (KOP) | Grant/award (A): 4,778 (derivative) @ $0 | EDGAR |
| 2025-03-26 | 4 | Koppers Holdings Inc. (KOP) | Grant/award (A): 17 (derivative) @ $0 · Grant/award (A): 22.20 (derivative) @ $0 | EDGAR |
| 2025-03-11 | 4/A | Koppers Holdings Inc. (KOP) | Disposition to issuer (D): 3,533 · Grant/award (A): 3,513 (derivative) @ $0 · Grant/award (A): 20 (derivative) @ $0 · Grant/award (A): 20.22 (derivative) @ $0 | EDGAR |
| 2024-12-17 | 4 | Koppers Holdings Inc. (KOP) | Grant/award (A): 9.40 (derivative) @ $0 | EDGAR |
| 2024-09-18 | 4 | Koppers Holdings Inc. (KOP) | Grant/award (A): 8.35 (derivative) @ $0 | EDGAR |
| 2024-06-12 | 4 | Koppers Holdings Inc. (KOP) | Grant/award (A): 7.38 (derivative) @ $0 | EDGAR |
| 2024-05-06 | 4 | Koppers Holdings Inc. (KOP) | Option exercise (M): 20 @ $0 · Option exercise (M): 20 (derivative) @ $0 · Grant/award (A): 2,079 (derivative) @ $0 | EDGAR |
| 2024-03-27 | 4 | Koppers Holdings Inc. (KOP) | Grant/award (A): 5.65 (derivative) @ $0 · Grant/award (A): 20 (derivative) @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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