成大生物：首次回购约4.4万股

Group 1 - The core point of the article is that Chengda Biological announced a share buyback plan, purchasing approximately 44,000 shares, which represents about 0.0106% of its total share capital of approximately 416 million shares [1] - The buyback was executed through centralized bidding, with the highest transaction price at 29.61 CNY per share and the lowest at 29.20 CNY per share, totaling around 1.29 million CNY in funds used [1] - As of the report, Chengda Biological has a market capitalization of 12.3 billion CNY [1] Group 2 - For the fiscal year 2024, Chengda Biological's revenue composition is entirely from biopharmaceuticals, accounting for 100.0% [1]