赛特新材股价波动，核心技术人员离职

Group 1 - The stock price of Sait New Materials has shown volatility over the past week, with a range increase of 16.67% and an amplitude of 25.91%, indicating active market trading [1] - On February 12, the stock price decreased by 2.64%, closing at 23.59 yuan, with a net outflow of main funds amounting to 4.3765 million yuan [1] Group 2 - Recently, the company announced the departure of core technical personnel, Yu Xiyou, due to personal reasons, and he will no longer hold any position [2] - The company stated that the work handover has been completed, and the ownership of related patents belongs to the company, which will not have a substantial impact on technological research and core competitiveness [2]