工大高科副董事长减持套现459万元，股价近期波动下跌

Group 1 - The core event involves the reduction of shareholding by Vice Chairman Zhang Hanlong, who sold 125,000 shares for approximately 4.59 million yuan, reducing his ownership to 0.43% [1] - This share reduction may have a short-term impact on market sentiment [1] Group 2 - The stock price of Gongda Gaoke has shown volatility over the past week, with a cumulative decline of 7.05% over three consecutive days, closing at 37.46 yuan per share [2] - On February 12, the stock experienced a slight rebound, closing at 37.61 yuan, marking a single-day increase of 0.40%, but a 5-day cumulative decline of 0.37% [2] - There was a net outflow of 2.32 million yuan in principal funds on February 12, indicating continued short-term selling pressure [2]