Koppers Holdings Inc. — SC 13G Filings
33 SC 13G filings on record
This page lists all SC 13G 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 33 SC 13G 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 |
|---|---|---|---|---|
| SC 13G | SEC SCHEDULE 13G | 0000354204-24-003002 | Feb 9, 2024 | — |
| SC 13G | — | 0001306550-23-001478 | Jan 20, 2023 | — |
| SC 13G | SC 13G | 0001104659-22-021896 | Feb 14, 2022 | — |
| SC 13G | SCHEDULE 13G | 0001213900-21-008731 | Feb 12, 2021 | — |
| SC 13G | SCHEDULE 13G | 0001213900-20-003820 | Feb 14, 2020 | — |
| SC 13G | — | 0000932471-19-006808 | Apr 8, 2019 | — |
| SC 13G | SCHEDULE 13G | 0001213900-19-002481 | Feb 14, 2019 | — |
| SC 13G | DIVISION OF INVESTMENT, DEPARTMENT OF THE TREASURY,STATE OF NEW JERSEY | 0001085146-18-002792 | Nov 15, 2018 | — |
| SC 13G | SCHEDULE 13G | 0001213900-18-001889 | Feb 14, 2018 | — |
| SC 13G | SCHEDULE 13G | 0001213900-17-001295 | Feb 14, 2017 | — |
| SC 13G | SCHEDULE 13G | 0001213900-16-010838 | Feb 12, 2016 | — |
| SC 13G | SC 13G | 0001193125-16-457218 | Feb 10, 2016 | — |
| SC 13G | SCHEDULE 13G | 0001213900-15-006770 | Sep 4, 2015 | — |
| SC 13G | SCHEDULE 13G | 0001213900-15-001033 | Feb 13, 2015 | — |
| SC 13G | DISCLOSURE DOCUMENT | 0000902219-14-000782 | Feb 14, 2014 | — |
| SC 13G | — | 0001089755-13-000006 | Feb 13, 2013 | — |
| SC 13G | — | 0001089755-12-000007 | Feb 10, 2012 | — |
| SC 13G | — | 0000932471-12-002477 | Feb 9, 2012 | — |
| SC 13G | — | 0001089755-11-000014 | Feb 14, 2011 | — |
| SC 13G | — | 0001086364-11-003216 | Feb 7, 2011 | — |
| SC 13G | — | 0001089755-10-000010 | Jun 10, 2010 | — |
| SC 13G | — | 0001089755-10-000005 | Feb 16, 2010 | — |
| SC 13G | KOPPERS HOLDINGS, INC. | 0001193125-10-029659 | Feb 12, 2010 | — |
| SC 13G | — | 0000932471-10-001226 | Feb 9, 2010 | — |
| SC 13G | — | 0001086364-10-008365 | Jan 29, 2010 | — |
| SC 13G | — | 0001089755-09-000017 | Apr 9, 2009 | — |
| SC 13G | — | 0001089755-09-000008 | Jan 12, 2009 | — |
| SC 13G | SCHEDULE 13G | 0000897069-08-000375 | Feb 14, 2008 | — |
| SC 13G | KOP AS OF 12-31-07 | 0000080255-08-000445 | Feb 13, 2008 | — |
| SC 13G | SC 13G | 0001104659-07-027306 | Apr 10, 2007 | — |
| SC 13G | SC 13G - KOPPERS | 0000872573-06-000030 | Feb 23, 2006 | — |
| SC 13G | KOPPERS HOLDINGS - SARATOGA 13G - 020606 | 0000950162-06-000222 | Feb 15, 2006 | — |
| SC 13G | KOPPERS HOLDING INC. | 0000902664-06-000554 | Feb 13, 2006 | — |