潍柴重机今日跌7.86%，有4家机构专用席位净卖出2.85亿元

Group 1 - Weichai Heavy Machinery experienced a decline of 7.86% today [1] - The trading volume reached 2.146 billion yuan, with a turnover rate of 28.20% [1] - Post-market data shows that the Shenzhen Stock Connect special seat bought 59.8002 million yuan and sold 111 million yuan [1] Group 2 - Four institutional special seats net sold 285 million yuan [1]