Koppers Holdings Inc. — 4 Filings
1,237 4 filings on record
This page lists all 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 1,237 4 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 |
|---|---|---|---|---|
| 4 | FORM 4 SUBMISSION | 0001209191-21-032266 | May 13, 2021 | May 11, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-030854 | May 7, 2021 | May 6, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-030857 | May 7, 2021 | May 6, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-030846 | May 7, 2021 | May 6, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-030848 | May 7, 2021 | May 6, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-030842 | May 7, 2021 | May 6, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-030850 | May 7, 2021 | May 6, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-030852 | May 7, 2021 | May 6, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-018968 | Mar 9, 2021 | Mar 6, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-018974 | Mar 9, 2021 | Mar 6, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-018948 | Mar 9, 2021 | Mar 6, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-018983 | Mar 9, 2021 | Mar 6, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-018960 | Mar 9, 2021 | Mar 6, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-018990 | Mar 9, 2021 | Mar 6, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-019000 | Mar 9, 2021 | Mar 6, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-019017 | Mar 9, 2021 | Mar 6, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-018128 | Mar 5, 2021 | Mar 3, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-018299 | Mar 5, 2021 | Mar 3, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-018112 | Mar 5, 2021 | Mar 3, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-018114 | Mar 5, 2021 | Mar 3, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-018110 | Mar 5, 2021 | Mar 3, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-018119 | Mar 5, 2021 | Mar 3, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-018123 | Mar 5, 2021 | Mar 3, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-018126 | Mar 5, 2021 | Mar 3, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-017695 | Mar 4, 2021 | Mar 2, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-017688 | Mar 4, 2021 | Mar 2, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-017699 | Mar 4, 2021 | Mar 2, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-017686 | Mar 4, 2021 | Mar 2, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-017703 | Mar 4, 2021 | Mar 2, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-017705 | Mar 4, 2021 | Mar 2, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-017690 | Mar 4, 2021 | Mar 2, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-016753 | Mar 3, 2021 | Mar 1, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-011693 | Feb 18, 2021 | Feb 16, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-011772 | Feb 18, 2021 | Feb 16, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-011686 | Feb 18, 2021 | Feb 16, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-011675 | Feb 18, 2021 | Feb 16, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-011688 | Feb 18, 2021 | Feb 16, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-011679 | Feb 18, 2021 | Feb 16, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-011690 | Feb 18, 2021 | Feb 16, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-011684 | Feb 18, 2021 | Feb 16, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-001972 | Jan 6, 2021 | Jan 4, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-001957 | Jan 6, 2021 | Jan 4, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-001983 | Jan 6, 2021 | Jan 4, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-001967 | Jan 6, 2021 | Jan 4, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-001993 | Jan 6, 2021 | Jan 4, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-002003 | Jan 6, 2021 | Jan 4, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-002028 | Jan 6, 2021 | Jan 4, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-21-002045 | Jan 6, 2021 | Jan 4, 2021 |
| 4 | FORM 4 SUBMISSION | 0001209191-20-060429 | Nov 25, 2020 | Nov 23, 2020 |
| 4 | FORM 4 SUBMISSION | 0001209191-20-048882 | Sep 1, 2020 | Aug 28, 2020 |