Group 1 - The stock price of Kehua Bio (002022) closed at 6.52 yuan on September 19, 2025, down by 0.91%, with a turnover rate of 1.3%, a trading volume of 66,700 shares, and a transaction amount of 43.46 million yuan [1] Group 2 - Tianlong Technology's key national research project on "Major Scientific Instrument and Equipment Development" has been accepted, focusing on the development of a fluorescence digital gene amplification single-molecule detection instrument [2] - The company emphasizes continuous investment in R&D and has accumulated rich experience in various diagnostic fields, maintaining a system advantage across multiple platforms and methodologies in in vitro diagnostics [2] - The company is facing unprecedented challenges in the in vitro diagnostics industry due to intensified competition and policy reforms, leading to a decline in revenue and increased losses [2] - The actual controller of the company holds 5% of the shares, while the controlling shareholder has a total voting power of 15.64% [2] Group 3 - On September 19, the net outflow of main funds was 4.18 million yuan, while retail investors saw a net inflow of 6.12 million yuan [3]