Group 1 - The core point of the article is the significant share reduction by the vice chairman and general manager of Huitai Medical, Cheng Zhenghui, who sold 2% of his shares at a price significantly lower than the market price, with the buyer being Shenzhen Mindray Technology, the controlling shareholder of Huitai Medical [1][2][5] - Cheng Zhenghui reduced his holdings from 25,373,507 shares to 23,551,232 shares, lowering his ownership percentage to 16.70% [2][5] - The share reduction occurred between September 3 and September 11, 2025, at a price of 248.20 yuan per share, totaling nearly 700 million yuan, while the market price was above 300 yuan during that period [2][5][10] Group 2 - Shenzhen Mindray Technology increased its stake in Huitai Medical by acquiring 2,164,739 shares on September 11, 2025, raising its total holdings from 35,253,449 shares to 37,418,188 shares, resulting in a new ownership percentage of 26.54% [5][9] - Huitai Medical has shown impressive growth, with revenue increasing from 479 million yuan in 2020 to 2.066 billion yuan in 2024, and net profit rising from 111 million yuan to 673 million yuan during the same period [9][10] - In the first half of 2025, Huitai Medical reported revenue of 1.214 billion yuan, a year-on-year increase of 21.26%, and net profit of 425 million yuan, up 24.11% [10]