DEFA14AThe Ballot
Koppers Holdings Inc. files DEFA14A
Filed Apr 19, 2021 · 5y ago · Accession 0001193125-21-120964
Plain English
DEFA14A filed with the SEC.
Read the source below for the full document.
Filing details
- Company
- Koppers Holdings Inc.
- Ticker
- KOP
- CIK
- 1315257
- Form type
- DEFA14A
- Filing date
- Apr 19, 2021
- Report date
- —
- Document
- d173439ddefa14a.htm
- Size
- 7.7 MB