WESTLAKE CORP — 4/A Filings
37 4/A filings on record
This page lists all 4/A filings submitted to the SEC by WESTLAKE CORP (WLK), sorted by most recent first. Each row links to the full filing on EdgarLookup. WESTLAKE CORP has filed 37 4/A documents with the SEC since 2014. To view all SEC filings by WESTLAKE CORP, see the full filings list.
All
10-K
10-Q
144
3
3/A
4
4/A
424B4
424B5
425
8-A12B
8-K
8-K/A
ARS
CERT
CORRESP
DEF 14A
DEFA14A
DEFC14A
DFAN14A
DFRN14A
EFFECT
FWP
POS AM
POSASR
PRE 14A
PREC14A
PRRN14A
PX14A6G
S-1
S-1/A
S-3
S-3/A
S-3ASR
S-4
S-4/A
S-8
SC 13G
SC 13G/A
SC TO-C
SD
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 4/A | 4/A | 0001193125-26-096289 | Mar 6, 2026 | Feb 16, 2022 |
| 4/A | 4/A | 0000950170-25-035137 | Mar 7, 2025 | Mar 5, 2025 |
| 4/A | 4/A | 0000950170-25-034210 | Mar 6, 2025 | Mar 5, 2025 |
| 4/A | 4/A | 0000950170-24-017365 | Feb 20, 2024 | Feb 16, 2024 |
| 4/A | FORM 4/A SUBMISSION | 0001209191-23-049547 | Sep 15, 2023 | Feb 15, 2022 |
| 4/A | FORM 4/A | 0001567619-23-005101 | Mar 15, 2023 | Feb 17, 2023 |
| 4/A | FORM 4/A | 0001567619-23-005100 | Mar 15, 2023 | Feb 17, 2023 |
| 4/A | FORM 4/A | 0001567619-23-005099 | Mar 15, 2023 | Feb 17, 2023 |
| 4/A | FORM 4/A | 0001567619-23-005098 | Mar 15, 2023 | Feb 17, 2023 |
| 4/A | FORM 4/A | 0001567619-23-005097 | Mar 15, 2023 | Feb 17, 2023 |
| 4/A | FORM 4/A | 0001567619-23-005096 | Mar 15, 2023 | Feb 17, 2023 |
| 4/A | FORM 4/A | 0001567619-23-005095 | Mar 15, 2023 | Feb 17, 2023 |
| 4/A | FORM 4/A | 0001567619-23-005094 | Mar 15, 2023 | Feb 17, 2023 |
| 4/A | FORM 4/A | 0001567619-22-006989 | Mar 15, 2022 | Feb 18, 2022 |
| 4/A | FORM 4/A | 0001567619-22-006988 | Mar 15, 2022 | Feb 18, 2022 |
| 4/A | FORM 4/A | 0001567619-22-006984 | Mar 15, 2022 | Feb 18, 2022 |
| 4/A | FORM 4/A | 0001567619-22-006983 | Mar 15, 2022 | Feb 18, 2022 |
| 4/A | FORM 4/A | 0001567619-22-006982 | Mar 15, 2022 | Feb 18, 2022 |
| 4/A | FORM 4/A | 0001567619-22-006981 | Mar 15, 2022 | Feb 18, 2022 |
| 4/A | FORM 4/A | 0001567619-22-006978 | Mar 15, 2022 | Feb 18, 2022 |
| 4/A | FORM 4/A | 0001567619-20-015789 | Aug 20, 2020 | Mar 13, 2020 |
| 4/A | FORM 4/A | 0001140361-17-046709 | Dec 19, 2017 | Nov 26, 2012 |
| 4/A | FORM 4/A | 0001140361-17-044820 | Dec 4, 2017 | Dec 1, 2017 |
| 4/A | FORM 4/A | 0001140361-17-036146 | Sep 21, 2017 | Aug 17, 2017 |
| 4/A | FORM 4/A | 0001140361-13-031475 | Aug 9, 2013 | Aug 5, 2013 |
| 4/A | FORM 4/A | 0001140361-13-013007 | Mar 18, 2013 | Aug 6, 2012 |
| 4/A | FORM 4/A | 0001140361-13-012467 | Mar 14, 2013 | Feb 28, 2013 |
| 4/A | FORM 4/A | 0001140361-13-008408 | Feb 20, 2013 | Aug 22, 2012 |
| 4/A | FORM 4/A | 0001140361-13-008399 | Feb 20, 2013 | May 29, 2012 |
| 4/A | FORM 4/A | 0001140361-12-010277 | Feb 23, 2012 | Feb 17, 2012 |
| 4/A | FORM 4/A | 0001140361-12-005344 | Feb 3, 2012 | Apr 8, 2011 |
| 4/A | FORM 4/A | 0001140361-10-011754 | Mar 15, 2010 | Mar 2, 2010 |
| 4/A | FORM 4/A | 0001140361-09-007576 | Mar 19, 2009 | Feb 19, 2008 |
| 4/A | FORM 4/A | 0001140361-07-005048 | Mar 5, 2007 | Mar 2, 2007 |
| 4/A | FORM 4/A | 0001140361-06-004438 | Mar 23, 2006 | Mar 20, 2006 |
| 4/A | FORM 4/A | 0001140361-06-004436 | Mar 23, 2006 | Mar 20, 2006 |
| 4/A | FORM 4/A | 0001140361-06-004434 | Mar 23, 2006 | Mar 20, 2006 |