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Company
▲ Purchases (0 ops.)
▼ Sales (0 ops.)
Latest filing published 23 Feb 2026 for Westlake CORP. Read the official filing
Insider track record
Disclosed buys
0
Disclosed sells
0
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
No signal scores available.
John Tsung-chen Chao: trading record in brief
All filings by John Tsung-chen Chao on record concern Westlake Corp, in the capacity of board member. In total, 7 filings cover trades dated from 14 August 2021 to 19 February 2026.
No open-market purchase or sale appears among the filings, only grants, plan transactions and other operations. Grants and option exercises follow pay plans set in advance, so they reveal less about an insider's own view than a purchase made with personal money.
On 23 February 2026 came the latest disclosure, a share grant in Westlake Corp. Typically, a trade is published a median of 4 days after it takes place. The legal deadline for a Form 4 is two business days after the transaction. This summary is built from SEC (Form 4) disclosures alone and does not predict where the share price will go.
Companies and markets linked to John Tsung-chen Chao
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations7 total
213 shares0Common StockSEC:0001193125-26-063669:0
570 shares0Common StockSEC:0001193125-26-059212:0
955 shares0Common StockSEC:0000950170-25-035137:0
513 shares0Common StockSEC:0000950170-25-034210:0
955 shares0Common StockSEC:0000950170-25-025490:0
513 shares0Common StockSEC:0000950170-25-024037:0
2,400 sharesCommon StockSEC:0001567619-21-015715:0
7 of 7 declarations
