上大股份今日大宗交易折价成交72万股，成交额2426.4万元

Group 1 - The core transaction involved 720,000 shares of Shangda Co., with a total transaction value of 24.264 million yuan, representing 9.66% of the total trading volume on that day [1] - The transaction price was 33.70 yuan per share, which is a discount of 1.49% compared to the market closing price of 34.21 yuan [1] - The buyer was an institutional investor, while the seller was Guotou Securities Co., Ltd. Jiangsu Branch [2]