Albert Chao has not been actively trading shares of Westlake over the course of the past ninety days. Most recently, Albert Chao sold 37,876 shares of the business's stock in a transaction on Thursday, May 19th. The shares were sold at an average price of $130.38, for a transaction totalling $4,938,272.88. Following the completion of the sale, the chief executive officer now directly owns 472,983 shares of the company's stock, valued at $61,667,523.54. Learn More on Albert Chao's trading history.