InsidersTradesSigma
Total declarations
Companies
▲ Purchases (0 ops.)
▼ Sales (0 ops.)
Insider track record
Board DirectorDisclosed buys
0
Disclosed sells
0
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
Explore the full record of transactions filed by Chao John Tsung-chen, Director. Director active across 2 companies, notably Westlake Chemical CORP. Aggregated, 6 reports have been published. Activity tracked since 18 February 2025. The latest transaction was filed on 20 February 2025 (Attribution). Regulator: SEC (Form 4). All data is accessible without signup.
Declarations6 total
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
2,400 sharesCommon StockSEC:0001567619-21-015715:0
6 of 6 declarations
About Chao John Tsung-chen
John Tsung-chen Chao is a Board Member of WESTLAKE CHEMICAL CORP. He contributes to the governance and strategy of the company. John brings valuable expertise in the chemical sector.
