长江材料今日大宗交易折价成交10.66万股，成交额267.35万元

Group 1 - The core point of the news is that Changjiang Materials executed a block trade on December 16, with a total of 10.66 million shares traded at a price of 25.08 yuan, which is a discount of 9.98% compared to the market closing price of 27.86 yuan [1][2]. Group 2 - The total transaction amount for the block trade was 2.6735 million yuan, accounting for 0.54% of the total trading volume on that day [1][2]. - The buyer of the shares was CITIC Securities Co., Ltd., while the seller was Southwest Securities Co., Ltd. [2].