天马科技：关于控股股东、实际控制人之一致行动人部分股份质押的公告

Group 1 - The core point of the article is that Tianma Technology announced the pledge of shares by its controlling shareholder, which may impact the company's stock performance [1] - Tianma Investment, a concerted actor of the actual controller Chen Qingtang, holds 61,373,428 shares, accounting for 12.22% of the total share capital of the company [1] - A total of 25 million shares were pledged by Tianma Investment [1]