On September 12th Beijing time, the US Securities and Exchange Commission (SEC) disclosed documents showing that Ajit Jain, the vice chairman of Warren Buffett's Berkshire Hathaway, reduced his holdings of Berkshire Hathaway by more than half on Monday local time, cashing out approximately $139 million. According to SEC documents, Ajit Jain sold 200 Class A shares at an average price of $695400 per share, approaching its recent high of $725000. Ajit Jain is in charge of Berkshire Hathaway's insurance business and has held key positions in the business for nearly 40 years.