Koppers Holdings Inc. — 3/A Filings
5 3/A filings on record
This page lists all 3/A 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 5 3/A documents with the SEC since 2015. To view all SEC filings by Koppers Holdings Inc., see the full filings list.
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 |
|---|---|---|---|---|
| 3/A | FORM 3/A SUBMISSION | 0001209191-20-009897 | Feb 18, 2020 | Feb 12, 2020 |
| 3/A | FORM 3/A SUBMISSION | 0001209191-18-016922 | Mar 5, 2018 | May 4, 2017 |
| 3/A | FORM 3/A - JIANZHONG ZHU | 0001181431-13-018582 | Mar 25, 2013 | Feb 6, 2013 |
| 3/A | FORM 3/A - ROBERT J. HOWARD | 0001181431-09-016943 | Mar 23, 2009 | Feb 4, 2009 |
| 3/A | JAMES T. DIETZ - FORM 3A | 0001181431-07-004290 | Jan 17, 2007 | Dec 1, 2006 |