迈威生物获融资买入0.53亿元，近三日累计买入1.35亿元

Group 1 - The core viewpoint of the news is that Maiwei Biotech has seen significant financing activity, indicating investor interest in the company [1][2]. - On August 12, Maiwei Biotech had a financing buy-in amount of 0.53 billion, ranking 399th in the market, with a financing repayment amount of 0.45 billion, resulting in a net buy of 7.34 million [1]. - Over the last three trading days (August 8-12), the financing buy-in amounts for Maiwei Biotech were 0.43 billion, 0.39 billion, and 0.53 billion respectively [2]. Group 2 - In terms of securities lending, on the same day, there were no shares sold or net sold, indicating no short selling activity [3].