According to the latest disclosure from the Hong Kong Stock Exchange, on November 11, Executive Director Yang Jianxin purchased an additional 100,000 shares of CStone Pharma-B (02616) at an average price of HK$5.345 per share, totaling HK$534,500. Following this transaction, his total shareholding increased to approximately 71.2627 million shares, representing a 4.83% stake in the company.