航天彩虹：控股股东之一致行动人减持1506万股

Group 1 - The core point of the article is that Aerospace Rainbow (002389) announced a share reduction by its controlling shareholder, Aerospace Investment Holding Co., Ltd., which will sell a total of 15.0592 million shares from December 16 to December 30, 2025, accounting for 1.52898% of the company's total share capital [1] Group 2 - Before the reduction, the combined shareholding of China Aerospace Aerodynamics Research Institute, Taizhou Jintou Aerospace Co., Ltd., and their concerted parties was 380 million shares, representing 38.55% of the total [1] - After the reduction, the total shareholding will decrease to 365 million shares, which will account for 37.02% of the total [1] - The change in equity ownership triggers a 1% integer multiple adjustment [1]