至纯科技两连板，一机构位卖出3.77亿元

Group 1 - The stock of Zhichun Technology (603690.SH) has experienced two consecutive daily limit increases, indicating strong market interest [1] - The turnover rate reached 31.4%, with a total transaction value of 4.851 billion yuan [1] - Institutional investors were active, with one institution selling 377 million yuan worth of shares, while retail investors also participated significantly [1] Group 2 - The top buyer was a retail investor from "Siming South Road," purchasing 64.48 million yuan [1] - Another retail group from "Chengdu" bought shares worth 55.20 million yuan [1] - Quantitative funds were notable sellers, offloading shares worth 1.05 billion yuan [1]