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WESTLAKE CORP

CIK: 1262823 SIC: 2860
1000
Total Filings
15
Filing Categories
47
Financial Reports
All Categories 1000 Financial Reports 91 Current Event Reports 239 Registration Statements 22 Proxy & Shareholder Statements 52 Prospectus Filings 38 Insider Trading 1116 Beneficial Ownership 50 Securities Sales 28 Employee Benefit Plans 2 Free Writing Prospectus 7 Specialized Disclosure 13 Annual Reports to Shareholders 15 Exchange Act Filings 3 SEC Correspondence 30 Other Filings 15

Proxy & Shareholder Statements

Shareholder meeting materials and voting information

40 filings
Form Filing Type Period Filed Date Action
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2026-04-02
SEC
DEF 14A
Definitive Proxy Statement
Official proxy statement for shareholder voting
2026-05-14
2026-04-02
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2025-03-28
SEC
DEF 14A
Definitive Proxy Statement
Official proxy statement for shareholder voting
2025-05-08
2025-03-28
Local
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2024-03-29
SEC
DEF 14A
Definitive Proxy Statement
Official proxy statement for shareholder voting
2024-05-09
2024-03-29
Local
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2023-03-31
SEC
DEF 14A
Definitive Proxy Statement
Official proxy statement for shareholder voting
-
2023-03-31
Local
PRE 14A
Preliminary Proxy Statement
Preliminary proxy statement for SEC review
-
2023-03-20
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2022-04-01
SEC
DEF 14A
Definitive Proxy Statement
Official proxy statement for shareholder voting
2022-05-12
2022-04-01
Local
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2021-04-02
SEC
DEF 14A
Definitive Proxy Statement
Official proxy statement for shareholder voting
2021-05-13
2021-04-02
Local
PRE 14A
Preliminary Proxy Statement
Preliminary proxy statement for SEC review
2021-05-13
2021-03-05
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2020-04-03
SEC
DEF 14A
Definitive Proxy Statement
Official proxy statement for shareholder voting
2020-05-15
2020-04-03
Local
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2019-04-05
SEC
DEF 14A
Definitive Proxy Statement
Official proxy statement for shareholder voting
2019-05-17
2019-04-05
Local
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2018-04-06
SEC
DEF 14A
Definitive Proxy Statement
Official proxy statement for shareholder voting
2018-05-18
2018-04-06
Local
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2017-04-07
SEC
DEF 14A
Definitive Proxy Statement
Official proxy statement for shareholder voting
2017-05-19
2017-04-07
Local
PRE 14A
Preliminary Proxy Statement
Preliminary proxy statement for SEC review
2017-05-19
2017-03-09
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2016-06-30
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2016-06-10
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2016-05-24
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2016-05-23
SEC
DFRN14A
Revised Non-Management Proxy
Revised non-management proxy materials
-
2016-05-04
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2016-05-04
SEC
DFRN14A
Revised Non-Management Proxy
Revised non-management proxy materials
-
2016-05-04
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2016-05-03
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2016-04-25
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2016-04-25
SEC
DFAN14A
Non-Management Additional Proxy
Additional proxy materials filed by non-management
-
2016-04-25
SEC
PREC14A
Preliminary Contested Proxy
Preliminary proxy for contested solicitation
-
2016-04-04
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2016-03-31
SEC
DEF 14A
Definitive Proxy Statement
Official proxy statement for shareholder voting
2016-05-10
2016-03-31
Local
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2015-04-01
SEC
DEFA14A
Additional Proxy Materials
Additional definitive proxy soliciting materials
-
2015-04-01
SEC
DEF 14A
Definitive Proxy Statement
Official proxy statement for shareholder voting
2015-05-15
2015-04-01
Local

Filing categories are based on SEC form types. Click on any filing to view detailed financial data.

Legend: Financial Reports Current Event Reports Registration Statements Proxy & Shareholder Statements Prospectus Filings Insider Trading Beneficial Ownership Securities Sales Employee Benefit Plans Free Writing Prospectus Specialized Disclosure Annual Reports to Shareholders Exchange Act Filings SEC Correspondence Other Filings

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