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Koppers Holdings Inc. — S-4 Filings

2 S-4 filings on record

This page lists all S-4 filings submitted to the SEC by Koppers Holdings Inc. (KOP), sorted by most recent first. Each row links to the full filing on EdgarLookup. Koppers Holdings Inc. has filed 2 S-4 documents with the SEC since 2015. To view all SEC filings by Koppers Holdings Inc., see the full filings list.

Overview All Filings Financials Insiders
All 10-K 10-K/A 10-Q 144 144/A 3 3/A 4 4/A 424B1 424B3 5 5/A 8-A12B 8-K 8-K/A ARS CERTNYS CORRESP DEF 14A DEFA14A EFFECT POS AM POSASR PRE 14A S-1 S-1/A S-3 S-3/A S-3ASR S-4 S-4/A S-8 SC 13G SC 13G/A SCHEDULE 13G SCHEDULE 13G/A UPLOAD
Form Description Accession Number Filed Period
S-4 FORM S-4 0001193125-10-043150 Feb 26, 2010 —
S-4 FORM S-4 0001193125-05-029334 Feb 14, 2005 —