12月11日增减持汇总：顺丰控股等2股增持 金陵集团等6股减持（表）

Summary of Key Points Core Viewpoint - On December 11, several A-share listed companies disclosed their share buyback and reduction activities, indicating varying levels of confidence among shareholders in the market. Group 1: Share Buyback Activities - SF Holding has repurchased A-shares amounting to 1.542 billion yuan at an average price of 39.59 yuan per share [2][3] - Zhenlan Instrument's shareholders plan to increase their holdings by 10 million to 20 million yuan [2][3] Group 2: Share Reduction Activities - Rongji Holdings' shareholders, including Luohui Investment, Luoteng Investment, and Luosheng Investment, plan to collectively reduce their holdings by no more than 3% [2][3] - Sunshine Dairy's shareholder Nanchang Zhihui intends to reduce their stake by no more than 3% [2][3] - Weizheng Holdings' controlling shareholder Zheng Zhi Kai plans to reduce their holdings by no more than 1.15% [2][3] - The Vice President of Huozhi Company, Yu Qingchi, reduced their holdings by 231,000 shares on December 10 [2][3] - Quanling Sports' Huang Shijun reduced their stake by 0.0276% [2][3] - Nankuang Group's Xi Youliang reduced their holdings by 2.8186 million shares between November 28 and December 10 [2][3]