Latest filings (excl ownership)
8-K
Departure of Directors or Certain Officers
25 Apr 24
PX14A6G
Letter to shareholders
11 Apr 24
8-K
Regulation FD Disclosure
3 Apr 24
ARS
2023 FY
Annual report to shareholders
29 Mar 24
DEFA14A
Additional proxy soliciting materials
29 Mar 24
DEF 14A
Definitive proxy
29 Mar 24
10-K
2023 FY
Annual report
21 Feb 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
10-Q
2023 Q3
Quarterly report
2 Nov 23
8-K
Westlake Corporation Reports Third Quarter 2023 Results
2 Nov 23
10-Q
2023 Q2
Quarterly report
3 Aug 23
8-K
Westlake Corporation Reports Second Quarter 2023 Results
3 Aug 23
SD
Conflict minerals disclosure
31 May 23
8-K
Departure of Directors or Certain Officers
16 May 23
S-8
Registration of securities for employees
11 May 23
10-Q
2023 Q1
Quarterly report
4 May 23
8-K
Westlake Corporation Reports First Quarter 2023 Results
4 May 23
PX14A6G
Letter to shareholders
20 Apr 23
8-K
Departure of Directors or Certain Officers
5 Apr 23
ARS
2022 FY
Annual report to shareholders
31 Mar 23
DEFA14A
Additional proxy soliciting materials
31 Mar 23
DEF 14A
Definitive proxy
31 Mar 23
PRE 14A
Preliminary proxy
20 Mar 23
10-K
2022 FY
Annual report
22 Feb 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
S-3ASR
Automatic shelf registration
3 Nov 22
10-Q
2022 Q3
Quarterly report
3 Nov 22
8-K
Westlake Corporation Reports Third Quarter 2022 Results
3 Nov 22
8-K
Westlake Announces $500 Million Expansion of Existing Share Repurchase Program
15 Aug 22
10-Q
2022 Q2
Quarterly report
3 Aug 22
8-K
Westlake Corporation Reports Record Second Quarter 2022 Results
2 Aug 22
8-K
Entry into a Material Definitive Agreement
9 Jun 22
SD
Conflict minerals disclosure
16 May 22
8-K
Submission of Matters to a Vote of Security Holders
13 May 22
10-Q
2022 Q1
Quarterly report
4 May 22
8-K
Westlake Corporation Reports Record First Quarter 2022 Results
3 May 22
DEFA14A
Additional proxy soliciting materials
1 Apr 22
DEF 14A
Definitive proxy
1 Apr 22
Latest ownership filings
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
144
Notice of proposed sale of securities
29 Feb 24
4
Mark Steven Bender
28 Feb 24
144
Notice of proposed sale of securities
23 Feb 24
4
Johnathan Stevan Zoeller
21 Feb 24
4
Thomas J. Janssens
21 Feb 24
4
L. Benjamin Ederington
21 Feb 24
4
James Chao
21 Feb 24
4
Albert Chao
21 Feb 24
4
Robert F. Buesinger
21 Feb 24
4
Mark Steven Bender
21 Feb 24
4/A
Thomas J. Janssens
20 Feb 24
4
Robert F. Buesinger
20 Feb 24
4
Thomas J. Janssens
20 Feb 24
4
Thomas J. Janssens
20 Feb 24
4
Mark Steven Bender
20 Feb 24
4
L. Benjamin Ederington
20 Feb 24
4
John Tsung-chen Chao
20 Feb 24
4
James Chao
20 Feb 24
4
Johnathan Stevan Zoeller
20 Feb 24
4
Albert Chao
20 Feb 24
SC 13G/A
TTWF LP
14 Feb 24
4
James Chao
1 Dec 23
144
Notice of proposed sale of securities
30 Nov 23
4
Robert F. Buesinger
17 Nov 23
144
Notice of proposed sale of securities
14 Nov 23
4/A
James Chao
15 Sep 23
4
David Tsung-Hung Chao
1 Sep 23
4
Catherine T. Chao
1 Sep 23
4
James Chao
1 Sep 23
4
Albert Chao
1 Sep 23