天宸股份跌停，上榜营业部合计净卖出2083.45万元

Group 1 - Tianchen Co., Ltd. (stock code: 600620) experienced a limit down today with a trading volume of 4.49 billion yuan and a turnover rate of 9.44% [1][2] - The stock was listed on the Shanghai Stock Exchange due to a daily decline of 10.62%, with a net selling amount of 20.83 million yuan from brokerage seats [2][3] - The top buying brokerage was Changcheng Securities with a purchase amount of 6.87 million yuan, while the top selling brokerage was Lianchu Securities with a selling amount of 19.46 million yuan [2][3] Group 2 - In Q1, the company reported a revenue of 71.93 million yuan, a year-on-year increase of 1,707.88%, and a net profit of 3.31 million yuan, up 116.65% year-on-year [3] - The company expects a net profit of 18.80 million to 22.50 million yuan for the first half of the year, representing a year-on-year change of 640% to 786% [3] - The increase in revenue is attributed to property sales, which were not present in the same period last year, contrasting with the previous year's revenue primarily from renovation services [3]