Group 1 - The stock price of Sanbo Brain Science closed at 60.94 yuan on August 22, 2025, down by 0.31 yuan, a decrease of 0.51% from the previous trading day [1] - The trading volume on that day was 138,400 hands, with a transaction amount of 844 million yuan [1] - Sanbo Brain Science operates in the medical services industry, focusing on neurosurgery, and has medical institutions in Beijing, Chongqing, and Fujian [1] Group 2 - On August 22, Sanbo Brain Science announced plans to invest 87 million yuan of its own funds to subscribe to shares of Shanghai Delian Bojian Venture Capital Partnership, which aims to raise a total of 300 million yuan [1] - The company indicated that its affiliated hospitals utilize surgical robots in certain neurosurgical procedures, being an early adopter of the Rosa robot technology for clinical diagnosis and treatment [1] - On the same day, the net outflow of main funds for Sanbo Brain Science was 162 million yuan, accounting for 1.66% of its circulating market value, with a cumulative net outflow of 793 million yuan over the past five trading days, representing 8.09% of its circulating market value [1]