{"transactions":[{"id":887797,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Chairman"}}],"security":"Restricted Stock Units","published_at":"2026-02-23T14:39:04.000Z","date":"2026-02-20","kind":"grant","planned":false,"acquired":true,"shares":7472,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F5","text":"Each restricted stock unit (\"RSU\") represents a contingent right to recieve one share of the Issuer's common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"All of the RSUs will vest on February 20, 2029."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"All of the RSUs will vest on February 20, 2029."}],"balance_after":7472,"derivative":{"underlying":"Common Stock","underlying_shares":7472},"source":{"system":"sec-edgar","filing":"0001193125-26-063659","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000119312526063659/ownership.xml","form_type":"4"}},{"id":887796,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Chairman"}}],"security":"Employee Option (right to buy)","published_at":"2026-02-23T14:39:04.000Z","date":"2026-02-20","kind":"grant","planned":false,"acquired":true,"shares":27382,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The stock options are excercisable in three installments of 33%, 33% and 34% on February 20, 2027, 2028 and 2029, respectively."}],"balance_after":27382,"derivative":{"exercise_price":94.48,"expiration_date":"2036-02-20","underlying":"Common Stock","underlying_shares":27382},"source":{"system":"sec-edgar","filing":"0001193125-26-063659","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000119312526063659/ownership.xml","form_type":"4"}},{"id":887795,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Chairman"}}],"security":"Common Stock","published_at":"2026-02-23T14:39:04.000Z","date":"2026-02-20","kind":"tax_withholding","planned":false,"acquired":false,"shares":1569,"price":94.101,"value":147644.469,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares otherwise issuable were witheld to satisfy tax obligations arising out of vesting of the Reporting Person's PSUs."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Weighted average price. These shares were sold in multiple transactions at prices ranging from $94.10 to $94.38, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth above."}],"balance_after":49774,"source":{"system":"sec-edgar","filing":"0001193125-26-063659","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000119312526063659/ownership.xml","form_type":"4"}},{"id":887794,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Chairman"}}],"security":"Common Stock","published_at":"2026-02-23T14:39:04.000Z","date":"2026-02-19","kind":"grant","planned":false,"acquired":true,"shares":3884,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares of common stock that vested on February 19, 2026, upon the determination by the Compensation Committee of the Issuer's Board of Directors of the satisfaction of performance criteria underlying an award of performance stock units (\"PSUs\") granted to the Reporting Person on February 17, 2023, under the terms of the Issuer's 2013 Omnibus Incentive Plan."}],"balance_after":51343,"source":{"system":"sec-edgar","filing":"0001193125-26-063659","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000119312526063659/ownership.xml","form_type":"4"}},{"id":893056,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Chairman"}}],"security":"Restricted Stock Units","published_at":"2026-02-19T15:19:34.000Z","date":"2026-02-17","kind":"exercise","planned":false,"acquired":false,"shares":10382,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Restricted stock units (\"RSUs\") convert into the Issuer's common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"On February 17, 2023, the reporting person was granted 10,382 RSUs vesting on the third anniversay of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"On February 17, 2023, the reporting person was granted 10,382 RSUs vesting on the third anniversay of the grant date."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":10382},"source":{"system":"sec-edgar","filing":"0001193125-26-059213","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000119312526059213/ownership.xml","form_type":"4"}},{"id":893055,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Chairman"}}],"security":"Common Stock","published_at":"2026-02-19T15:19:34.000Z","date":"2026-02-18","kind":"tax_withholding","planned":false,"acquired":false,"shares":2664,"price":98.95,"value":263602.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Shares otherwise issuable were withheld to satisfy tax obligations arising out of the vesting of the reporting persons RSUs."}],"balance_after":47459,"source":{"system":"sec-edgar","filing":"0001193125-26-059213","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000119312526059213/ownership.xml","form_type":"4"}},{"id":893054,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Chairman"}}],"security":"Common Stock","published_at":"2026-02-19T15:19:34.000Z","date":"2026-02-17","kind":"exercise","planned":false,"acquired":true,"shares":10382,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Restricted stock units (\"RSUs\") convert into the Issuer's common stock on a one-for-one basis."}],"balance_after":50123,"source":{"system":"sec-edgar","filing":"0001193125-26-059213","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000119312526059213/ownership.xml","form_type":"4"}},{"id":1052727,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Chairman"}}],"security":"Common Stock","published_at":"2025-08-29T07:18:21.000Z","date":"2025-08-28","kind":"gift","planned":false,"acquired":false,"shares":15140,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":39741,"source":{"system":"sec-edgar","filing":"0001299505-25-000007","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000129950525000007/ownership.xml","form_type":"4"}},{"id":1129112,"issuer":{"id":5149,"kind":"organization","name":"Westlake Chemical Partners LP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Chairman"}}],"security":"Common Units","published_at":"2025-05-30T09:16:27.000Z","date":"2025-05-29","kind":"sale","planned":false,"acquired":false,"shares":3700,"price":22.1,"value":81770.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Weighted average price. These shares were sold in multiple transactions at prices ranging from $22.03 to $22.27 inclusive. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth above."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000950170-25-079347","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000095017025079347/ownership.xml","form_type":"4"}},{"id":1130401,"issuer":{"id":5149,"kind":"organization","name":"Westlake Chemical Partners LP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Chairman"}}],"security":"Common Units","published_at":"2025-05-29T12:17:08.000Z","date":"2025-05-28","kind":"sale","planned":false,"acquired":false,"shares":4600,"price":22.1,"value":101660.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Weighted average price. These shares were sold in multiple transactions at prices ranging from $22.03 to $22.27 inclusive. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth above."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Weighted average price. These shares were sold in multiple transactions at prices ranging from $22.05 to $22.25 inclusive. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth above."}],"balance_after":3700,"source":{"system":"sec-edgar","filing":"0000950170-25-078698","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000095017025078698/ownership.xml","form_type":"4"}},{"id":1130400,"issuer":{"id":5149,"kind":"organization","name":"Westlake Chemical Partners LP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Chairman"}}],"security":"Common Units","published_at":"2025-05-29T12:17:08.000Z","date":"2025-05-27","kind":"sale","planned":false,"acquired":false,"shares":5608,"price":22.17,"value":124329.36,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Weighted average price. These shares were sold in multiple transactions at prices ranging from $22.03 to $22.27 inclusive. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth above."}],"balance_after":8300,"source":{"system":"sec-edgar","filing":"0000950170-25-078698","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000095017025078698/ownership.xml","form_type":"4"}},{"id":1249304,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Chairman"}}],"security":"Restricted Stock Units","published_at":"2025-02-24T14:11:26.000Z","date":"2025-02-21","kind":"grant","planned":false,"acquired":true,"shares":12322,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F5","text":"Each restricted stock unit (\"RSU\") represents a contingent right to recieve one share of the Issuer's common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"All of the RSUs will vest on February 21, 2028."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F6","text":"All of the RSUs will vest on February 21, 2028."}],"balance_after":12322,"derivative":{"underlying":"Common Stock","underlying_shares":12322},"source":{"system":"sec-edgar","filing":"0000950170-25-025479","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000095017025025479/ownership.xml","form_type":"4"}},{"id":1249303,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Chairman"}}],"security":"Employee Option (right to buy)","published_at":"2025-02-24T14:11:26.000Z","date":"2025-02-21","kind":"grant","planned":false,"acquired":true,"shares":37172,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The stock options are excercisable in three installments of 33%, 33% and 34% on February 21, 2026, 2027 and 2028, respectively."}],"balance_after":37172,"derivative":{"exercise_price":110.15,"expiration_date":"2035-02-21","underlying":"Common Stock","underlying_shares":37172},"source":{"system":"sec-edgar","filing":"0000950170-25-025479","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000095017025025479/ownership.xml","form_type":"4"}},{"id":1249302,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Chairman"}}],"security":"Common Stock","published_at":"2025-02-24T14:11:26.000Z","date":"2025-02-21","kind":"tax_withholding","planned":false,"acquired":false,"shares":6554,"price":110.54,"value":724479.16,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares otherwise issuable were witheld to satisfy tax obligations arising out of vesting of the Reporting Person's PSUs."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"Weighted average price. These shares were sold in multiple transactions at prices ranging from $110.54 to $110.72, inclusive. The Reporting Person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth above."}],"balance_after":54881,"source":{"system":"sec-edgar","filing":"0000950170-25-025479","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000095017025025479/ownership.xml","form_type":"4"}},{"id":1249301,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Chairman"}}],"security":"Common Stock","published_at":"2025-02-24T14:11:26.000Z","date":"2025-02-20","kind":"grant","planned":false,"acquired":true,"shares":16375,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares of common stock that vested on February 20, 2025, upon the determination by the Compensation Committee of the Issuer's Board of Directors of the satisfaction of performance criteria underlying an award of performance stock units (\"PSUs\") granted to the Reporting Person on February 18, 2022, under the terms of the Issuer's 2013 Omnibus Incentive Plan."}],"balance_after":61435,"source":{"system":"sec-edgar","filing":"0000950170-25-025479","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000095017025025479/ownership.xml","form_type":"4"}},{"id":1255474,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Chairman"}}],"security":"Restricted Stock Units","published_at":"2025-02-20T14:34:52.000Z","date":"2025-02-18","kind":"exercise","planned":false,"acquired":false,"shares":8796,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Restricted stock units (\"RSUs\") convert into the Issuer's common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"On February 18, 2022, the reporting person was granted 8,796 RSUs vesting on the third anniversay of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"On February 18, 2022, the reporting person was granted 8,796 RSUs vesting on the third anniversay of the grant date."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":8796},"source":{"system":"sec-edgar","filing":"0000950170-25-024013","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000095017025024013/ownership.xml","form_type":"4"}},{"id":1255473,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Chairman"}}],"security":"Common Stock","published_at":"2025-02-20T14:34:52.000Z","date":"2025-02-19","kind":"tax_withholding","planned":false,"acquired":false,"shares":94,"price":112.76,"value":10599.44,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Shares otherwise issuable were withheld to satisfy tax obligations arising out of the vesting of the reporting persons RSUs."}],"balance_after":45060,"source":{"system":"sec-edgar","filing":"0000950170-25-024013","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000095017025024013/ownership.xml","form_type":"4"}},{"id":1255472,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Chairman"}}],"security":"Common Stock","published_at":"2025-02-20T14:34:52.000Z","date":"2025-02-19","kind":"tax_withholding","planned":false,"acquired":false,"shares":2193,"price":111.46,"value":244431.78,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Shares otherwise issuable were withheld to satisfy tax obligations arising out of the vesting of the reporting persons RSUs."}],"balance_after":45154,"source":{"system":"sec-edgar","filing":"0000950170-25-024013","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000095017025024013/ownership.xml","form_type":"4"}},{"id":1255471,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Chairman"}}],"security":"Common Stock","published_at":"2025-02-20T14:34:52.000Z","date":"2025-02-18","kind":"exercise","planned":false,"acquired":true,"shares":8796,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Restricted stock units (\"RSUs\") convert into the Issuer's common stock on a one-for-one basis."}],"balance_after":47347,"source":{"system":"sec-edgar","filing":"0000950170-25-024013","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000095017025024013/ownership.xml","form_type":"4"}},{"id":1417585,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Senior Chairman"}}],"security":"Common Stock","published_at":"2024-09-03T09:39:55.000Z","date":"2024-08-30","kind":"gift","planned":false,"acquired":false,"shares":6642,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":38551,"source":{"system":"sec-edgar","filing":"0000950170-24-102579","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000095017024102579/ownership.xml","form_type":"4"}},{"id":1556134,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2024-04-01T06:26:00.000Z","date":"2024-03-28","kind":"gift","planned":false,"acquired":false,"shares":36632,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":45193,"source":{"system":"sec-edgar","filing":"0000950170-24-038850","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000095017024038850/ownership.xml","form_type":"4"}},{"id":1628654,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman"}}],"security":"Restricted Stock Units","published_at":"2024-02-21T10:28:51.000Z","date":"2024-02-19","kind":"exercise","planned":false,"acquired":false,"shares":10774,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Restricted stock units (\"RSUs\") convert into the Issuer's common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"On February 19, 2021, the reporting person was granted 10,774 RSUs vesting on the third anniversay of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"On February 19, 2021, the reporting person was granted 10,774 RSUs vesting on the third anniversay of the grant date."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":10774},"source":{"system":"sec-edgar","filing":"0000950170-24-017623","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000095017024017623/ownership.xml","form_type":"4"}},{"id":1628653,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2024-02-21T10:28:51.000Z","date":"2024-02-20","kind":"tax_withholding","planned":false,"acquired":false,"shares":1153,"price":136.971,"value":157927.563,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Shares otherwise issuable were withheld to satisfy tax obligations arising out of the vesting of the reporting persons RSUs and PSUs."},{"field":"price","element":"transactionPricePerShare","label":"F4","text":"Weighted average price. These shares were sold in multiple transactions at prices ranging from $136.83 to $137.22 inclusive. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range set forth above."}],"balance_after":81825,"source":{"system":"sec-edgar","filing":"0000950170-24-017623","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000095017024017623/ownership.xml","form_type":"4"}},{"id":1628652,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2024-02-21T10:28:51.000Z","date":"2024-02-20","kind":"tax_withholding","planned":false,"acquired":false,"shares":10,"price":135.43,"value":1354.3,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Shares otherwise issuable were withheld to satisfy tax obligations arising out of the vesting of the reporting persons RSUs and PSUs."}],"balance_after":82978,"source":{"system":"sec-edgar","filing":"0000950170-24-017623","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000095017024017623/ownership.xml","form_type":"4"}},{"id":1628651,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2024-02-21T10:28:51.000Z","date":"2024-02-20","kind":"tax_withholding","planned":false,"acquired":false,"shares":11799,"price":129.92,"value":1532926.08,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Shares otherwise issuable were withheld to satisfy tax obligations arising out of the vesting of the reporting persons RSUs and PSUs."}],"balance_after":82988,"source":{"system":"sec-edgar","filing":"0000950170-24-017623","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000095017024017623/ownership.xml","form_type":"4"}},{"id":1628650,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2024-02-21T10:28:51.000Z","date":"2024-02-19","kind":"exercise","planned":false,"acquired":true,"shares":10774,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Restricted stock units (\"RSUs\") convert into the Issuer's common stock on a one-for-one basis."}],"balance_after":94787,"source":{"system":"sec-edgar","filing":"0000950170-24-017623","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000095017024017623/ownership.xml","form_type":"4"}},{"id":1628649,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2024-02-21T10:28:51.000Z","date":"2024-02-16","kind":"grant","planned":false,"acquired":true,"shares":21614,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares of common stock that vested on February 16, 2024 upon the approval of the Issuer's Board of Directors (\"BOD\"), and the determination by the Compensation Committee of the BOD, of the satisfaction of performance criteria underlying an award of performance stock units (\"PSUs\") granted to the Reporting Person on February 19, 2021 under the terms of the Issuer's 2013 Omnibus Incentive Plan."}],"balance_after":84013,"source":{"system":"sec-edgar","filing":"0000950170-24-017623","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000095017024017623/ownership.xml","form_type":"4"}},{"id":1633331,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman"}}],"security":"Restricted Stock Units","published_at":"2024-02-20T09:11:09.000Z","date":"2024-02-16","kind":"grant","planned":false,"acquired":true,"shares":9118,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock"},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"All of the restricted stock units will vest on February 16, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"All of the restricted stock units will vest on February 16, 2027."}],"balance_after":9118,"derivative":{"underlying":"Common Stock","underlying_shares":9118},"source":{"system":"sec-edgar","filing":"0000950170-24-016835","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000095017024016835/ownership.xml","form_type":"4"}},{"id":1633330,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chairman"}}],"security":"Employee Option (right to buy)","published_at":"2024-02-20T09:11:09.000Z","date":"2024-02-16","kind":"grant","planned":false,"acquired":true,"shares":25242,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The stock options are excercisable in three installments of 33%, 33% and 34% on February 16, 2025, 2026 and 2027, respectively."}],"balance_after":25242,"derivative":{"exercise_price":144.485,"expiration_date":"2034-02-16","underlying":"Common Stock","underlying_shares":25242},"source":{"system":"sec-edgar","filing":"0000950170-24-016835","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000095017024016835/ownership.xml","form_type":"4"}},{"id":1725235,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Employee Option (right to buy)","published_at":"2023-12-01T14:23:02.000Z","date":"2023-11-30","kind":"exercise","planned":false,"acquired":false,"shares":9177,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The stock options are exercisable in three installments of 33%, 33% and 34% on February 18, 2023, 2024 and 2025, respectively."}],"balance_after":18633,"derivative":{"exercise_price":108.1175,"expiration_date":"2032-02-18","underlying":"Common Stock","underlying_shares":9177},"source":{"system":"sec-edgar","filing":"0001209191-23-057056","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000120919123057056/doc4.xml","form_type":"4"}},{"id":1725234,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Employee Option (right to buy)","published_at":"2023-12-01T14:23:02.000Z","date":"2023-11-30","kind":"exercise","planned":false,"acquired":false,"shares":24437,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The stock options are exercisable in three installments of 33%. 33% and 34% on February 19, 2022, 2023 and 2024, respectively."}],"balance_after":12589,"derivative":{"exercise_price":86.5379,"expiration_date":"2031-02-19","underlying":"Common Stock","underlying_shares":24437},"source":{"system":"sec-edgar","filing":"0001209191-23-057056","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000120919123057056/doc4.xml","form_type":"4"}},{"id":1725233,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Employee Option (right to buy)","published_at":"2023-12-01T14:23:02.000Z","date":"2023-11-30","kind":"exercise","planned":false,"acquired":false,"shares":34559,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The stock options are exercisable in three installments of 33%, 33% and 34% on February 14, 2021, 2022 and 2023, respectively."}],"balance_after":0,"derivative":{"exercise_price":65.8125,"expiration_date":"2030-02-14","underlying":"Common Stock","underlying_shares":34559},"source":{"system":"sec-edgar","filing":"0001209191-23-057056","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000120919123057056/doc4.xml","form_type":"4"}},{"id":1725232,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2023-12-01T14:23:02.000Z","date":"2023-11-30","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":10981,"price":129.14,"value":1418086.34,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $129.005 to $129.60, inclusive. The reporting person undertakes to provide to Westlake Corporation, any security holder of Westlake Corporation or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote."}],"balance_after":62399,"source":{"system":"sec-edgar","filing":"0001209191-23-057056","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000120919123057056/doc4.xml","form_type":"4"}},{"id":1725231,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2023-12-01T14:23:02.000Z","date":"2023-11-30","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":57232,"price":128.37,"value":7346871.84,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $128.00 to $129.00, inclusive. The reporting person undertakes to provide to Westlake Corporation, any security holder of Westlake Corporation or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote."}],"balance_after":73380,"source":{"system":"sec-edgar","filing":"0001209191-23-057056","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000120919123057056/doc4.xml","form_type":"4"}},{"id":1725230,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2023-12-01T14:23:02.000Z","date":"2023-11-30","kind":"exercise","planned":false,"acquired":true,"shares":9177,"price":108.1175,"value":992194.2975,"ownership":{"direct":true},"balance_after":130612,"source":{"system":"sec-edgar","filing":"0001209191-23-057056","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000120919123057056/doc4.xml","form_type":"4"}},{"id":1725229,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2023-12-01T14:23:02.000Z","date":"2023-11-30","kind":"exercise","planned":false,"acquired":true,"shares":24437,"price":86.5379,"value":2114726.6623,"ownership":{"direct":true},"balance_after":121435,"source":{"system":"sec-edgar","filing":"0001209191-23-057056","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000120919123057056/doc4.xml","form_type":"4"}},{"id":1725228,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2023-12-01T14:23:02.000Z","date":"2023-11-30","kind":"exercise","planned":false,"acquired":true,"shares":34599,"price":65.8125,"value":2277046.6875,"ownership":{"direct":true},"balance_after":96998,"source":{"system":"sec-edgar","filing":"0001209191-23-057056","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000120919123057056/doc4.xml","form_type":"4"}},{"id":1790747,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Emplopyee Option (right to buy)","published_at":"2023-09-01T10:12:07.000Z","date":"2023-08-31","kind":"exercise","planned":false,"acquired":false,"shares":43738,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F8","text":"The stock options are exercisable in three installments of 33%, 33% and 34% on February 14, 2021, 2022 and 2023, respectively."}],"balance_after":34599,"derivative":{"exercise_price":65.8125,"expiration_date":"2030-02-14","underlying":"Common Stock","underlying_shares":43738},"source":{"system":"sec-edgar","filing":"0001209191-23-047916","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":14,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000120919123047916/doc4.xml","form_type":"4"}},{"id":1790746,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Emplopyee Option (right to buy)","published_at":"2023-09-01T10:12:07.000Z","date":"2023-08-31","kind":"exercise","planned":false,"acquired":false,"shares":55766,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"The stock options are exercisable in three installments of 33%. 33% and 34% on February 15, 2020, 2021 and 2022, respectively."}],"balance_after":0,"derivative":{"exercise_price":79.83,"expiration_date":"2029-02-15","underlying":"Common Stock","underlying_shares":55766},"source":{"system":"sec-edgar","filing":"0001209191-23-047916","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":13,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000120919123047916/doc4.xml","form_type":"4"}},{"id":1790745,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Emplopyee Option (right to buy)","published_at":"2023-09-01T10:12:07.000Z","date":"2023-08-31","kind":"exercise","planned":false,"acquired":false,"shares":35321,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"The stock options are exercisable in three installments of 33%, 33% and 34% on February 16, 2019, 2020 and 2021, respectively"}],"balance_after":0,"derivative":{"exercise_price":107.75,"expiration_date":"2028-02-16","underlying":"Common Stock","underlying_shares":35321},"source":{"system":"sec-edgar","filing":"0001209191-23-047916","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":12,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000120919123047916/doc4.xml","form_type":"4"}},{"id":1790744,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Emplopyee Option (right to buy)","published_at":"2023-09-01T10:12:07.000Z","date":"2023-08-31","kind":"exercise","planned":false,"acquired":false,"shares":62197,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The stock options are exercisable in three installments of 33%, 33% and 34% on February 17, 2018, 2019 and 2020, respectively"}],"balance_after":0,"derivative":{"exercise_price":61.865,"expiration_date":"2027-02-17","underlying":"Common Stock","underlying_shares":62197},"source":{"system":"sec-edgar","filing":"0001209191-23-047916","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000120919123047916/doc4.xml","form_type":"4"}},{"id":1790743,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Emplopyee Option (right to buy)","published_at":"2023-09-01T10:12:07.000Z","date":"2023-08-31","kind":"exercise","planned":false,"acquired":false,"shares":47569,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The stock options are exercisable in three installments of 33%. 33% and 34% on February 18, 2017, 2018 and 2019, respectively."}],"balance_after":0,"derivative":{"exercise_price":44.42,"expiration_date":"2026-02-18","underlying":"Common Stock","underlying_shares":47569},"source":{"system":"sec-edgar","filing":"0001209191-23-047916","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000120919123047916/doc4.xml","form_type":"4"}},{"id":1790742,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2023-09-01T10:12:07.000Z","date":"2023-08-31","kind":"gift","planned":false,"acquired":false,"shares":58268,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":62372,"source":{"system":"sec-edgar","filing":"0001209191-23-047916","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000120919123047916/doc4.xml","form_type":"4"}},{"id":1790741,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2023-09-01T10:12:07.000Z","date":"2023-08-31","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":17998,"price":132.478,"value":2384339.044,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $132.01 to $132.91, inclusive. The reporting person undertakes to provide to Westlake Corporation, any security holder of Westlake Corporation or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote."}],"balance_after":120640,"source":{"system":"sec-edgar","filing":"0001209191-23-047916","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000120919123047916/doc4.xml","form_type":"4"}},{"id":1790740,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2023-09-01T10:12:07.000Z","date":"2023-08-31","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":226593,"price":131.153,"value":29718351.729,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $131.00 to $131.99, inclusive. The reporting person undertakes to provide to Westlake Corporation, any security holder of Westlake Corporation or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote."}],"balance_after":138638,"source":{"system":"sec-edgar","filing":"0001209191-23-047916","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000120919123047916/doc4.xml","form_type":"4"}},{"id":1790739,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2023-09-01T10:12:07.000Z","date":"2023-08-31","kind":"exercise","planned":false,"acquired":true,"shares":43738,"price":65.8125,"value":2878507.125,"ownership":{"direct":true},"balance_after":365231,"source":{"system":"sec-edgar","filing":"0001209191-23-047916","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000120919123047916/doc4.xml","form_type":"4"}},{"id":1790738,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2023-09-01T10:12:07.000Z","date":"2023-08-31","kind":"exercise","planned":false,"acquired":true,"shares":55766,"price":79.83,"value":4451799.78,"ownership":{"direct":true},"balance_after":321493,"source":{"system":"sec-edgar","filing":"0001209191-23-047916","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000120919123047916/doc4.xml","form_type":"4"}},{"id":1790737,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2023-09-01T10:12:07.000Z","date":"2023-08-31","kind":"exercise","planned":false,"acquired":true,"shares":35321,"price":107.75,"value":3805837.75,"ownership":{"direct":true},"balance_after":265727,"source":{"system":"sec-edgar","filing":"0001209191-23-047916","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000120919123047916/doc4.xml","form_type":"4"}},{"id":1790736,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2023-09-01T10:12:07.000Z","date":"2023-08-31","kind":"exercise","planned":false,"acquired":true,"shares":62197,"price":61.865,"value":3847817.405,"ownership":{"direct":true},"balance_after":230406,"source":{"system":"sec-edgar","filing":"0001209191-23-047916","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000120919123047916/doc4.xml","form_type":"4"}},{"id":1790735,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2023-09-01T10:12:07.000Z","date":"2023-08-31","kind":"exercise","planned":false,"acquired":true,"shares":47569,"price":44.42,"value":2113014.98,"ownership":{"direct":true},"balance_after":168209,"source":{"system":"sec-edgar","filing":"0001209191-23-047916","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000120919123047916/doc4.xml","form_type":"4"}},{"id":1791873,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Emplopyee Option (right to buy)","published_at":"2023-08-31T14:36:42.000Z","date":"2023-08-30","kind":"exercise","planned":false,"acquired":true,"shares":17735,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The stock options are exercisable in three installments of 33%. 33% and 34% on February 18, 2017, 2018 and 2019, respectively."}],"balance_after":47569,"derivative":{"exercise_price":44.42,"expiration_date":"2026-02-18","underlying":"Common Stock","underlying_shares":17735},"source":{"system":"sec-edgar","filing":"0001209191-23-047818","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000120919123047818/doc4.xml","form_type":"4"}},{"id":1791872,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Employee Option (right to buy)","published_at":"2023-08-31T14:36:42.000Z","date":"2023-08-30","kind":"exercise","planned":false,"acquired":true,"shares":12321,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"The stock options are exercisable in three installments of 33%, 33% and 34% on February 20, 2016, 2017 and 2018, respectively."}],"balance_after":0,"derivative":{"exercise_price":68.09,"expiration_date":"2025-02-20","underlying":"Common Stock","underlying_shares":12321},"source":{"system":"sec-edgar","filing":"0001209191-23-047818","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000120919123047818/doc4.xml","form_type":"4"}},{"id":1791871,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2023-08-31T14:36:42.000Z","date":"2023-08-30","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":30056,"price":133.703,"value":4018577.368,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $133.50 to $134.375, inclusive. The reporting person undertakes to provide to Westlake Corporation, any security holder of Westlake Corporation or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote."}],"balance_after":120640,"source":{"system":"sec-edgar","filing":"0001209191-23-047818","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000120919123047818/doc4.xml","form_type":"4"}},{"id":1791870,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2023-08-31T14:36:42.000Z","date":"2023-08-30","kind":"exercise","planned":false,"acquired":true,"shares":17735,"price":44.42,"value":787788.7,"ownership":{"direct":true},"balance_after":150696,"source":{"system":"sec-edgar","filing":"0001209191-23-047818","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000120919123047818/doc4.xml","form_type":"4"}},{"id":1791869,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2023-08-31T14:36:42.000Z","date":"2023-08-30","kind":"exercise","planned":false,"acquired":true,"shares":12321,"price":68.09,"value":838936.89,"ownership":{"direct":true},"balance_after":132961,"source":{"system":"sec-edgar","filing":"0001209191-23-047818","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000120919123047818/doc4.xml","form_type":"4"}},{"id":1951989,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2023-03-15T15:19:25.000Z","date":"2023-03-13","kind":"tax_withholding","acquired":false,"shares":789,"price":105.13,"value":82947.57,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The original Form 4 filed by the Reporting Person on February 17, 2023 is amended by this Form 4 Amendment to disclose that 15,625 shares of common stock were sold to cover tax withholding obligations arising from the award reported in the original Form 4. The original Form 4 did not report the sale to cover tax withholding obligations because the number of shares to be sold was not known at the time of filing. This Form 4 Amendment is in addition to, and does not replace, the disclosure contained in the original Form 4."}],"balance_after":120640,"source":{"system":"sec-edgar","filing":"0001567619-23-005097","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761923005097/doc1.xml","form_type":"4/A","original_submission_date":"2023-02-17"}},{"id":1951988,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2023-03-15T15:19:25.000Z","date":"2023-03-13","kind":"tax_withholding","acquired":false,"shares":14836,"price":104.32,"value":1547691.52,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"The original Form 4 filed by the Reporting Person on February 17, 2023 is amended by this Form 4 Amendment to disclose that 15,625 shares of common stock were sold to cover tax withholding obligations arising from the award reported in the original Form 4. The original Form 4 did not report the sale to cover tax withholding obligations because the number of shares to be sold was not known at the time of filing. This Form 4 Amendment is in addition to, and does not replace, the disclosure contained in the original Form 4."}],"balance_after":121429,"source":{"system":"sec-edgar","filing":"0001567619-23-005097","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761923005097/doc1.xml","form_type":"4/A","original_submission_date":"2023-02-17"}},{"id":1951987,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2023-03-15T15:19:25.000Z","date":"2023-02-17","kind":"grant","acquired":true,"shares":37150,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":136265,"source":{"system":"sec-edgar","filing":"0001567619-23-005097","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761923005097/doc1.xml","form_type":"4/A","original_submission_date":"2023-02-17"}},{"id":2003241,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Restricted Stock Units","published_at":"2023-02-21T09:08:19.000Z","date":"2023-02-17","kind":"grant","acquired":true,"shares":10382,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"All of the restricted stock units will vest on February 17, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"All of the restricted stock units will vest on February 17, 2026."}],"balance_after":10382,"derivative":{"underlying":"Common Stock","underlying_shares":10382},"source":{"system":"sec-edgar","filing":"0001567619-23-003370","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761923003370/doc1.xml","form_type":"4"}},{"id":2003240,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Employee Option (right to buy)","published_at":"2023-02-21T09:08:19.000Z","date":"2023-02-17","kind":"grant","acquired":true,"shares":28344,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The stock options are excercisable in three installments of 33%, 33% and 34% on February 17, 2024, 2025 and 2026, respectively."}],"balance_after":28344,"derivative":{"exercise_price":122.65,"expiration_date":"2033-02-17","underlying":"Common Stock","underlying_shares":28344},"source":{"system":"sec-edgar","filing":"0001567619-23-003370","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761923003370/doc1.xml","form_type":"4"}},{"id":2007206,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2023-02-17T15:37:18.000Z","date":"2023-02-17","kind":"grant","acquired":true,"shares":37150,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares of common stock that vested upon the determination by the Compensation Committee of the Issuer's Board of Directors of the satisfaction of performance criteria underlying an award of performance stock units granted to the Reporting Person on February 14, 2020 under the terms of the Issuer's 2013 Omnibus Incentive Plan."}],"balance_after":136265,"source":{"system":"sec-edgar","filing":"0001567619-23-003265","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761923003265/doc1.xml","form_type":"4"}},{"id":2010762,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Restricted Stock Units","published_at":"2023-02-16T11:39:46.000Z","date":"2023-02-14","kind":"exercise","acquired":false,"shares":18519,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Restricted stock units convert into Issuer's shares of common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"On February 14, 2020, the reporting person was granted 18,519 restricted stock units vesting on the third anniversary of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"On February 14, 2020, the reporting person was granted 18,519 restricted stock units vesting on the third anniversary of the grant date."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":18519},"source":{"system":"sec-edgar","filing":"0001567619-23-003134","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761923003134/doc1.xml","form_type":"4"}},{"id":2010761,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2023-02-16T11:39:46.000Z","date":"2023-02-15","kind":"tax_withholding","acquired":false,"shares":85,"price":122.45,"value":10408.25,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares otherwise issuable were withheld to satisfy tax obligations arising out of vesting of the Reporting Person's restricted stock units."}],"balance_after":99115,"source":{"system":"sec-edgar","filing":"0001567619-23-003134","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761923003134/doc1.xml","form_type":"4"}},{"id":2010760,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2023-02-16T11:39:46.000Z","date":"2023-02-15","kind":"tax_withholding","acquired":false,"shares":6074,"price":121.86,"value":740177.64,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares otherwise issuable were withheld to satisfy tax obligations arising out of vesting of the Reporting Person's restricted stock units."}],"balance_after":99200,"source":{"system":"sec-edgar","filing":"0001567619-23-003134","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761923003134/doc1.xml","form_type":"4"}},{"id":2010759,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2023-02-16T11:39:46.000Z","date":"2023-02-14","kind":"exercise","acquired":true,"shares":18519,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Restricted stock units convert into Issuer's shares of common stock on a one-for-one basis."}],"balance_after":105274,"source":{"system":"sec-edgar","filing":"0001567619-23-003134","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761923003134/doc1.xml","form_type":"4"}},{"id":2233923,"issuer":{"id":5149,"kind":"organization","name":"Westlake Chemical Partners LP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Units","published_at":"2022-06-13T07:18:52.000Z","date":"2022-06-09","kind":"gift","acquired":false,"shares":10000,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":13908,"source":{"system":"sec-edgar","filing":"0001567619-22-012714","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761922012714/doc1.xml","form_type":"4"}},{"id":2247238,"issuer":{"id":5149,"kind":"organization","name":"Westlake Chemical Partners LP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Units","published_at":"2022-06-02T13:58:57.000Z","date":"2022-05-31","kind":"sale","acquired":false,"shares":2000,"price":27.54,"value":55080.0,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These common units were sold in multiple transactions ranging from $27.51 to $27.65, inclusive. The reporting person undertakes to provide WLKP, any security holder of WLKP or the staff of the SEC, upon request, full information regarding the number of common units sold at each separate price within the range set forth in this footnote."}],"balance_after":23908,"source":{"system":"sec-edgar","filing":"0001567619-22-012049","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761922012049/doc1.xml","form_type":"4"}},{"id":2247237,"issuer":{"id":5149,"kind":"organization","name":"Westlake Chemical Partners LP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Units","published_at":"2022-06-02T13:58:57.000Z","date":"2022-05-31","kind":"sale","acquired":false,"shares":29092,"price":26.867,"value":781614.764,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These common units were sold in multiple transactions ranging from $26.50 to $27.48, inclusive. The reporting person undertakes to provide to Westlake Chemical Partners LP (\"WLKP\"), any security holder of WLKP or the staff of the SEC, upon request, full information regarding the number of common units sold at each separate price within the range set forth in this footnote."}],"balance_after":25908,"source":{"system":"sec-edgar","filing":"0001567619-22-012049","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761922012049/doc1.xml","form_type":"4"}},{"id":2247236,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2022-06-02T10:17:11.000Z","date":"2022-06-02","kind":"gift","acquired":false,"shares":38836,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":86755,"source":{"system":"sec-edgar","filing":"0001567619-22-012037","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761922012037/doc1.xml","form_type":"4"}},{"id":2333097,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2022-03-15T15:38:04.000Z","date":"2022-03-14","kind":"tax_withholding","acquired":false,"shares":9710,"price":118.51,"value":1150732.1,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"The Original Form 4 is further amended to disclose that 9,710 shares of common stock were sold to cover tax withholding obligations arising from the award. The Original Form 4 did not report the sale to cover tax withholding obligations because the number of shares to be sold was not known at the time of filing."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"The Original Form 4 is further amended to disclose that 9,710 shares of common stock were sold to cover tax withholding obligations arising from the award. The Original Form 4 did not report the sale to cover tax withholding obligations because the number of shares to be sold was not known at the time of filing."}],"balance_after":125591,"source":{"system":"sec-edgar","filing":"0001567619-22-006981","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761922006981/doc1.xml","form_type":"4/A","original_submission_date":"2022-02-18"}},{"id":2333096,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2022-03-15T15:38:04.000Z","date":"2022-02-18","kind":"grant","acquired":true,"shares":24461,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Due to a rounding error, discovered on March 15, 2022, the original Form 4 filed on behalf of the Reporting Person on February 18, 2022 (the 'Original Form 4') reported the vesting of 24,462 shares of common stock. This Form 4/A amends that filing to reflect a vesting of 24,461 shares of common stock. As previously reported, these shares of common stock vested upon the determination by the Compensation Committee of the Issuer's Board of Directors of the satisfaction of performance criteria underlying an award of performance stock units granted to the Reporting Person on February 15, 2019 under the terms of the Issuer's 2013 Omnibus Incentive Plan."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Due to a rounding error, discovered on March 15, 2022, the original Form 4 filed on behalf of the Reporting Person on February 18, 2022 (the 'Original Form 4') reported the vesting of 24,462 shares of common stock. This Form 4/A amends that filing to reflect a vesting of 24,461 shares of common stock. As previously reported, these shares of common stock vested upon the determination by the Compensation Committee of the Issuer's Board of Directors of the satisfaction of performance criteria underlying an award of performance stock units granted to the Reporting Person on February 15, 2019 under the terms of the Issuer's 2013 Omnibus Incentive Plan."}],"balance_after":135301,"source":{"system":"sec-edgar","filing":"0001567619-22-006981","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761922006981/doc1.xml","form_type":"4/A","original_submission_date":"2022-02-18"}},{"id":2381910,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Restricted Stock Units","published_at":"2022-02-22T07:04:06.000Z","date":"2022-02-18","kind":"grant","acquired":true,"shares":8796,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"All of the restricted stock units will vest on February 18, 2025."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"All of the restricted stock units will vest on February 18, 2025."}],"balance_after":8796,"derivative":{"underlying":"Common Stock","underlying_shares":8796},"source":{"system":"sec-edgar","filing":"0001567619-22-005163","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761922005163/doc1.xml","form_type":"4"}},{"id":2381909,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Employee Option (right to buy)","published_at":"2022-02-22T07:04:06.000Z","date":"2022-02-18","kind":"grant","acquired":true,"shares":27810,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The stock options are excercisable in three installments of 33%, 33% and 34% on February 18, 2023, 2024 and 2025, respectively."}],"balance_after":27810,"derivative":{"exercise_price":108.1175,"expiration_date":"2032-02-18","underlying":"Common Stock","underlying_shares":27810},"source":{"system":"sec-edgar","filing":"0001567619-22-005163","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761922005163/doc1.xml","form_type":"4"}},{"id":2381908,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2022-02-22T07:03:30.000Z","date":"2022-02-18","kind":"grant","acquired":true,"shares":24462,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares of common stock that vested upon the determination by the Compensation Committee of the Issuer's Board of Directors of the satisfaction of performance criteria underlying an award of performance stock units granted to the Reporting Person on February 15, 2019 under the terms of the Issuer's 2013 Omnibus Incentive Plan."}],"balance_after":135302,"source":{"system":"sec-edgar","filing":"0001567619-22-005161","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761922005161/doc1.xml","form_type":"4"}},{"id":2388116,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Restricted Stock Units","published_at":"2022-02-17T11:36:32.000Z","date":"2022-02-15","kind":"exercise","acquired":false,"shares":14683,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Restricted stock units convert into Issuer's shares of common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"On February 15, 2019, the reporting person was granted 14,683 restricted stock units vesting on the third anniversary of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"On February 15, 2019, the reporting person was granted 14,683 restricted stock units vesting on the third anniversary of the grant date."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":14683},"source":{"system":"sec-edgar","filing":"0001567619-22-004824","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761922004824/doc1.xml","form_type":"4"}},{"id":2388115,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2022-02-17T11:36:32.000Z","date":"2022-02-16","kind":"tax_withholding","acquired":false,"shares":20,"price":106.18,"value":2123.6,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares otherwise issuable were withheld to satisfy tax obligations arising out of vesting of the Reporting Person's restricted stock units."}],"balance_after":110840,"source":{"system":"sec-edgar","filing":"0001567619-22-004824","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761922004824/doc1.xml","form_type":"4"}},{"id":2388114,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2022-02-17T11:36:32.000Z","date":"2022-02-16","kind":"tax_withholding","acquired":false,"shares":27,"price":105.969,"value":2861.163,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares otherwise issuable were withheld to satisfy tax obligations arising out of vesting of the Reporting Person's restricted stock units."}],"balance_after":110860,"source":{"system":"sec-edgar","filing":"0001567619-22-004824","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761922004824/doc1.xml","form_type":"4"}},{"id":2388113,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2022-02-17T11:36:32.000Z","date":"2022-02-16","kind":"tax_withholding","acquired":false,"shares":4308,"price":104.96,"value":452167.68,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Shares otherwise issuable were withheld to satisfy tax obligations arising out of vesting of the Reporting Person's restricted stock units."}],"balance_after":110887,"source":{"system":"sec-edgar","filing":"0001567619-22-004824","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761922004824/doc1.xml","form_type":"4"}},{"id":2388112,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2022-02-17T11:36:32.000Z","date":"2022-02-15","kind":"exercise","acquired":true,"shares":14683,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Restricted stock units convert into Issuer's shares of common stock on a one-for-one basis."}],"balance_after":115195,"source":{"system":"sec-edgar","filing":"0001567619-22-004824","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761922004824/doc1.xml","form_type":"4"}},{"id":2485454,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Employee Option (right to buy)","published_at":"2021-12-03T07:56:57.000Z","date":"2021-12-02","kind":"exercise","acquired":false,"shares":16420,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The stock options are excercisable in three equal installments on February 17, 2013, 2014 and 2015."}],"balance_after":0,"derivative":{"exercise_price":30.0525,"expiration_date":"2022-02-17","underlying":"Common Stock","underlying_shares":16420},"source":{"system":"sec-edgar","filing":"0001567619-21-021538","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761921021538/doc1.xml","form_type":"4"}},{"id":2485453,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2021-12-03T07:56:57.000Z","date":"2021-12-02","kind":"exercise","acquired":true,"shares":16420,"price":30.0525,"value":493462.05,"ownership":{"direct":true},"balance_after":100512,"source":{"system":"sec-edgar","filing":"0001567619-21-021538","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761921021538/doc1.xml","form_type":"4"}},{"id":2842995,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Restricted Stock Units","published_at":"2021-02-22T08:32:32.000Z","date":"2021-02-19","kind":"grant","acquired":true,"shares":10774,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"All of the restricted stock units will vest on February 19, 2024."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"All of the restricted stock units will vest on February 19, 2024."}],"balance_after":10774,"derivative":{"underlying":"Common Stock","underlying_shares":10774},"source":{"system":"sec-edgar","filing":"0001567619-21-004534","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761921004534/doc1.xml","form_type":"4"}},{"id":2842994,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Employee Option (right to buy)","published_at":"2021-02-22T08:32:32.000Z","date":"2021-02-19","kind":"grant","acquired":true,"shares":37026,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The stock options are excercisable in three installments of 33%, 33% and 34% on February 19, 2022, 2023 and 2024, respectively."}],"balance_after":37026,"derivative":{"exercise_price":86.5379,"expiration_date":"2031-02-19","underlying":"Common Stock","underlying_shares":37026},"source":{"system":"sec-edgar","filing":"0001567619-21-004534","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761921004534/doc1.xml","form_type":"4"}},{"id":2849619,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Restricted Stock Units","published_at":"2021-02-18T17:27:21.000Z","date":"2021-02-16","kind":"exercise","acquired":false,"shares":9480,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Restricted stock units convert into Issuer's shares of common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"On February 16, 2018, the reporting person was granted 9,480 restricted stock units vesting on the third anniversary of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"On February 16, 2018, the reporting person was granted 9,480 restricted stock units vesting on the third anniversary of the grant date."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":9480},"source":{"system":"sec-edgar","filing":"0001567619-21-004432","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761921004432/doc1.xml","form_type":"4"}},{"id":2849618,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2021-02-18T17:27:21.000Z","date":"2021-02-18","kind":"tax_withholding","acquired":false,"shares":2537,"price":85.083,"value":215855.571,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $85.06 to $85.83, inclusive. The reporting person undertakes to provide to Westlake Chemical Corp., any security holder of Westlake Chemical Corp. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote."}],"balance_after":84092,"source":{"system":"sec-edgar","filing":"0001567619-21-004432","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761921004432/doc1.xml","form_type":"4"}},{"id":2849617,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2021-02-18T17:27:21.000Z","date":"2021-02-16","kind":"exercise","acquired":true,"shares":9480,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Restricted stock units convert into Issuer's shares of common stock on a one-for-one basis."}],"balance_after":86629,"source":{"system":"sec-edgar","filing":"0001567619-21-004432","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761921004432/doc1.xml","form_type":"4"}},{"id":2854112,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Restricted Stock Units","published_at":"2021-02-17T14:01:33.000Z","date":"2021-02-14","kind":"exercise","acquired":false,"shares":3072,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Restricted stock units convert into Issuer's shares of common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"On February 14, 2020, the reporting person was granted 3,072 restricted stock units vesting on the first anniversary of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"On February 14, 2020, the reporting person was granted 3,072 restricted stock units vesting on the first anniversary of the grant date."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":3072},"source":{"system":"sec-edgar","filing":"0001567619-21-004206","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761921004206/doc1.xml","form_type":"4"}},{"id":2854111,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2021-02-17T14:01:33.000Z","date":"2021-02-16","kind":"tax_withholding","acquired":false,"shares":8,"price":87.7,"value":701.6,"ownership":{"direct":true},"balance_after":77149,"source":{"system":"sec-edgar","filing":"0001567619-21-004206","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761921004206/doc1.xml","form_type":"4"}},{"id":2854110,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2021-02-17T14:01:33.000Z","date":"2021-02-16","kind":"tax_withholding","acquired":false,"shares":784,"price":85.73,"value":67212.32,"ownership":{"direct":true},"balance_after":77157,"source":{"system":"sec-edgar","filing":"0001567619-21-004206","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761921004206/doc1.xml","form_type":"4"}},{"id":2854109,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2021-02-17T14:01:33.000Z","date":"2021-02-14","kind":"exercise","acquired":true,"shares":3072,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Restricted stock units convert into Issuer's shares of common stock on a one-for-one basis."}],"balance_after":77941,"source":{"system":"sec-edgar","filing":"0001567619-21-004206","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761921004206/doc1.xml","form_type":"4"}},{"id":3262681,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Restricted Stock Units","published_at":"2020-02-19T15:33:18.000Z","date":"2020-02-17","kind":"exercise","acquired":false,"shares":15922,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Restricted stock units convert into Issuer's shares of common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"On February 17, 2017, the reporting person was granted 15,922 restricted stock units vesting on the third anniversary of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"On February 17, 2017, the reporting person was granted 15,922 restricted stock units vesting on the third anniversary of the grant date."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":15922},"source":{"system":"sec-edgar","filing":"0001567619-20-004289","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761920004289/doc1.xml","form_type":"4"}},{"id":3262680,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2020-02-19T15:33:18.000Z","date":"2020-02-18","kind":"tax_withholding","acquired":false,"shares":273,"price":61.47,"value":16781.31,"ownership":{"direct":true},"balance_after":74869,"source":{"system":"sec-edgar","filing":"0001567619-20-004289","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761920004289/doc1.xml","form_type":"4"}},{"id":3262679,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2020-02-19T15:33:18.000Z","date":"2020-02-18","kind":"tax_withholding","acquired":false,"shares":4103,"price":60.5,"value":248231.5,"ownership":{"direct":true},"balance_after":75142,"source":{"system":"sec-edgar","filing":"0001567619-20-004289","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761920004289/doc1.xml","form_type":"4"}},{"id":3262678,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2020-02-19T15:33:18.000Z","date":"2020-02-17","kind":"exercise","acquired":true,"shares":15922,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Restricted stock units convert into Issuer's shares of common stock on a one-for-one basis."}],"balance_after":79245,"source":{"system":"sec-edgar","filing":"0001567619-20-004289","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761920004289/doc1.xml","form_type":"4"}},{"id":3266510,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Restricted Stock Units","published_at":"2020-02-18T07:08:52.000Z","date":"2020-02-14","kind":"grant","acquired":true,"shares":3072,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"All of these restricted stock units will vest on February 14, 2021."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"All of these restricted stock units will vest on February 14, 2021."}],"balance_after":3072,"derivative":{"underlying":"Common Stock","underlying_shares":3072},"source":{"system":"sec-edgar","filing":"0001567619-20-004124","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761920004124/doc1.xml","form_type":"4"}},{"id":3266509,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Restricted Stock Units","published_at":"2020-02-18T07:08:52.000Z","date":"2020-02-14","kind":"grant","acquired":true,"shares":18519,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"All of these restricted stock units will vest on February 14, 2023."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"All of these restricted stock units will vest on February 14, 2023."}],"balance_after":18519,"derivative":{"underlying":"Common Stock","underlying_shares":18519},"source":{"system":"sec-edgar","filing":"0001567619-20-004124","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761920004124/doc1.xml","form_type":"4"}},{"id":3266508,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Employee Option (right to buy)","published_at":"2020-02-18T07:08:52.000Z","date":"2020-02-14","kind":"grant","acquired":true,"shares":78337,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The stock options are excercisable in three installments of 33%, 33% and 34% on February 14, 2021, 2022 and 2023, respectively."}],"balance_after":78337,"derivative":{"exercise_price":65.8125,"expiration_date":"2030-02-14","underlying":"Common Stock","underlying_shares":78337},"source":{"system":"sec-edgar","filing":"0001567619-20-004124","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761920004124/doc1.xml","form_type":"4"}},{"id":3645455,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Restricted Stock Units","published_at":"2019-02-20T13:47:44.000Z","date":"2019-02-18","kind":"exercise","acquired":false,"shares":17154,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Restricted stock units convert into Issuer's shares of common stock on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"On February 18, 2016, the reporting person was granted 17,154 restricted stock units vesting on the third anniversary of the grant date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"On February 18, 2016, the reporting person was granted 17,154 restricted stock units vesting on the third anniversary of the grant date."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":17154},"source":{"system":"sec-edgar","filing":"0001567619-19-004968","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761919004968/doc1.xml","form_type":"4"}},{"id":3645454,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2019-02-20T13:47:44.000Z","date":"2019-02-19","kind":"tax_withholding","acquired":false,"shares":462,"price":75.62,"value":34936.44,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions ranging from $75.56 to $75.65, inclusive. The reporting person undertakes to provide to Westlake Chemical Corp., any security holder of Westlake Chemical Corp. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote."}],"balance_after":63323,"source":{"system":"sec-edgar","filing":"0001567619-19-004968","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761919004968/doc1.xml","form_type":"4"}},{"id":3645453,"issuer":{"id":3555,"kind":"organization","name":"WESTLAKE CORP"},"owners":[{"id":65153,"kind":"person","name":"Chao James","position":1,"cik":"0001299505","reported_name":"Chao James","relationship":{"director":true,"officer":true,"ten_percent_owner":true,"other":false,"officer_title":"Chairman"}}],"security":"Common Stock","published_at":"2019-02-20T13:47:44.000Z","date":"2019-02-19","kind":"tax_withholding","acquired":false,"shares":4861,"price":73.29,"value":356262.69,"ownership":{"direct":true},"balance_after":63785,"source":{"system":"sec-edgar","filing":"0001567619-19-004968","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1299505/000156761919004968/doc1.xml","form_type":"4"}}],"next_cursor":"2019-02-20T13:47:44.000000Z,3645453"}