12月19日增减持汇总：龙芯中科等13家公司拟减持 无A股增持（表）

Core Viewpoint - On December 19, 13 A-share listed companies disclosed plans for share reductions, with no companies announcing share increases on the same day [1][3]. Summary by Category Share Reduction Plans - Longxin Zhongke: Multiple shareholders plan to reduce their holdings by no more than 0.89% [2][4] - Sanwei Communication: Actual controller Li Yuelun plans to reduce holdings by no more than 1.49% [2][4] - Huashu Media: Shareholder Xihubei Electronics Group plans to reduce holdings by no more than 1% [2][4] - Huaying Technology: Shareholder China Display (Bermuda) plans to reduce holdings by no more than 0.36% [2][4] - Dingxin Communication: Shareholder Shitianyu plans to reduce holdings by no more than 3% [2][4] - Baili Technology: Directors and executives plan to reduce holdings by no more than 0.0186% [2][4] - Suzhou Tianmai: Shareholders plan to reduce holdings by no more than 1.99% [2][4] - Yongfu Co.: Controlling shareholder plans to reduce holdings by no more than 3% [2][4] - Tongyi Co.: Controlling shareholders, directors, and senior management are reducing holdings [2][4] - Aikedi: Shareholder Hong Kong Lingtai and its concerted parties plan to reduce holdings by no more than 3% [2][4] - Yuanwanggu: Shareholder Xu Yusuo plans to reduce holdings by no more than 3% [2][4] - Yinuosi: Shareholder Aopeng Partnership plans to reduce holdings by no more than 1% [2][4] - Juguang Technology: Shareholders plan to reduce holdings by no more than 1.46% [2][4]