泰瑞机器(603289.SH)：股东郑建国减持383.36万股公司股份

Group 1 - The core point of the article is that Tai Rui Machinery (603289.SH) announced a share reduction by major shareholder Zheng Jianguo, who has reduced his holdings from 34.579 million shares to 30.7454 million shares, a decrease of 3.8336 million shares, which touches the 1% threshold for shareholder equity change [1] Group 2 - Zheng Jianguo executed the share reduction through centralized bidding and block trading methods [1] - The announcement was made on November 11, 2025, indicating the date of the share reduction notification [1] - The reduction in shareholding reflects a significant change in the ownership structure of the company [1]