Koppers Reports Achievements in Safety, Sustainability and Financial Performance

SEC Filings
Filing date Form Description Filing Group View
424B3

Form of prospectus reflecting facts events constituting substantive change from last form

Registration Statements
4

Statement of changes in beneficial ownership of securities

3,4,5
4

Statement of changes in beneficial ownership of securities

3,4,5
EFFECT

EFFECT

Other
CORRESP

CORRESP

Other
10-Q

Quarterly report which provides a continuing view of a company's financial position

Quarterly Filings
S-4/A

Pre-effective amendment to an S-4 filing

Registration Statements
4

Statement of changes in beneficial ownership of securities

3,4,5
4

Statement of changes in beneficial ownership of securities

3,4,5
4

Statement of changes in beneficial ownership of securities

3,4,5