Financial reports
ARS
2023 FY
Annual report to shareholders
29 Mar 24
10-K
2023 FY
Annual report
21 Feb 24
10-Q
2023 Q3
Quarterly report
2 Nov 23
10-Q
2023 Q2
Quarterly report
3 Aug 23
10-Q
2023 Q1
Quarterly report
4 May 23
ARS
2022 FY
Annual report to shareholders
31 Mar 23
10-K
2022 FY
Annual report
22 Feb 23
10-Q
2022 Q3
Quarterly report
3 Nov 22
10-Q
2022 Q2
Quarterly report
3 Aug 22
10-Q
2022 Q1
Quarterly report
4 May 22
Current reports
8-K
Regulation FD Disclosure
3 Apr 24
8-K
Westlake Corporation Reports Fourth Quarter and Full Year 2023 Results
20 Feb 24
8-K
Results of Operations and Financial Condition
6 Feb 24
8-K
Westlake Corporation Reports Third Quarter 2023 Results
2 Nov 23
8-K
Westlake Corporation Reports Second Quarter 2023 Results
3 Aug 23
8-K
Departure of Directors or Certain Officers
16 May 23
8-K
Westlake Corporation Reports First Quarter 2023 Results
4 May 23
8-K
Departure of Directors or Certain Officers
5 Apr 23
8-K
Departure of Directors or Certain Officers
21 Feb 23
8-K
Westlake Corporation Reports Record Full-Year 2022 Results
21 Feb 23
Registration and prospectus
S-8
Registration of securities for employees
11 May 23
S-3ASR
Automatic shelf registration
3 Nov 22
424B5
Prospectus supplement for primary offering
6 Aug 21
FWP
Free writing prospectus
5 Aug 21
424B5
Prospectus supplement for primary offering
5 Aug 21
424B5
Prospectus supplement for primary offering
10 Jun 20
FWP
Free writing prospectus
9 Jun 20
424B5
Prospectus supplement for primary offering
9 Jun 20
S-3ASR
Automatic shelf registration
7 Nov 19
8-A12B
Registration of securities on exchange
17 Jul 19
Proxies
PX14A6G
Letter to shareholders
11 Apr 24
DEFA14A
Additional proxy soliciting materials
29 Mar 24
DEF 14A
Definitive proxy
29 Mar 24
PX14A6G
Letter to shareholders
20 Apr 23
DEFA14A
Additional proxy soliciting materials
31 Mar 23
DEF 14A
Definitive proxy
31 Mar 23
PRE 14A
Preliminary proxy
20 Mar 23
DEFA14A
Additional proxy soliciting materials
1 Apr 22
DEF 14A
Definitive proxy
1 Apr 22
DEFA14A
Additional proxy soliciting materials
2 Apr 21
Other
SD
Conflict minerals disclosure
31 May 23
SD
Conflict minerals disclosure
16 May 22
UPLOAD
Letter from SEC
23 Sep 21
CORRESP
Correspondence with SEC
23 Sep 21
UPLOAD
Letter from SEC
20 Sep 21
SD
Conflict minerals disclosure
21 May 21
SD
Conflict minerals disclosure
22 May 20
CERT
Certification of approval for exchange listing
22 Jul 19
SD
Conflict minerals disclosure
24 May 19
SD
Conflict minerals disclosure
22 May 18
Ownership
4
James Chao
1 Apr 24
4
Johnathan Stevan Zoeller
22 Mar 24
144
Notice of proposed sale of securities
21 Mar 24
4
Robert F. Buesinger
18 Mar 24
4
Robert F. Buesinger
14 Mar 24
4
Robert F. Buesinger
11 Mar 24
4
Johnathan Stevan Zoeller
11 Mar 24
144
Notice of proposed sale of securities
8 Mar 24
4
Mark Steven Bender
7 Mar 24
144
Notice of proposed sale of securities
5 Mar 24