华熙生物：华熙昕宇增持公司股份约452万股，增持计划已实施完毕

Group 1 - The core point of the article is that Huaxi Bio announced a significant share buyback, with Huaxi Xinyu increasing its stake in the company by approximately 4.52 million shares, representing 0.94% of the total share capital, with a total investment of around RMB 257 million, exceeding the lower limit of the planned buyback amount of RMB 200 million [1] Group 2 - The share buyback took place between August 27, 2025, and September 30, 2025, through the Shanghai Stock Exchange trading system via centralized bidding [1] - The buyback plan has been completed successfully, indicating strong confidence from Huaxi Xinyu in Huaxi Bio's future performance [1]