欧林生物今日大宗交易折价成交32.1万股，成交额728.03万元

Group 1 - The core point of the news is that Olin Bio conducted a block trade on September 30, with a total of 321,000 shares traded, amounting to 7.2803 million yuan, which represents 4.31% of the total trading volume for that day [1] - The transaction price was 22.68 yuan per share, which is a discount of 16.62% compared to the market closing price of 27.2 yuan [1] Group 2 - The block trade involved multiple brokerage firms, including Huatai Securities and Junyi Creative, indicating a diverse participation in the transaction [2] - The total transaction amount was broken down into different contributions from various buying and selling departments, highlighting the active engagement of institutional investors [2]