【读财报】1月董监高增减持动态：增持总额同比增逾六成 大中矿业、凯普生物增持金额较多

Core Viewpoint - In January 2026, the total amount of stock reduction by executives and their related parties in the Shanghai and Shenzhen stock markets reached approximately 6.373 billion yuan, with a net reduction of about 5.91 billion yuan after accounting for increases [1][4]. Group 1: Stock Reduction - The total reduction amount in January 2026 was approximately 6.373 billion yuan, involving 222 companies [4][12]. - The highest reduction amount was from Tianshan Aluminum, with a reduction of approximately 816 million yuan [5][12]. - The second highest reduction was from Gaode Infrared, totaling approximately 798 million yuan [5][12]. - Perfect World ranked third with a reduction of approximately 464 million yuan [5][12]. - The non-metallic mineral industry had the highest reduction amount, approximately 1.113 billion yuan, followed by the defense industry at about 889 million yuan [12][21]. Group 2: Stock Increase - The total amount of stock increase in January 2026 was approximately 462 million yuan, involving 34 companies [13][21]. - The highest increase was from Dazhong Mining, with an increase of approximately 392 million yuan [15][18]. - The second highest increase was from Kaipu Biological, totaling approximately 27 million yuan [15][18]. - The third highest increase was from Sentai Co., with an increase of approximately 15 million yuan [15][18]. - The steel industry had the highest increase amount, approximately 392 million yuan, followed by the pharmaceutical industry at about 27 million yuan [21].