华海诚科(688535.SH)：股东杨森茂减持58.47万股公司股份

Group 1 - The core point of the article is that Huahai Chengke (688535.SH) announced a share reduction by its shareholder Yang Senmao, who reduced his holdings from 6.68% to 5.96% of the total shares [1] - Yang Senmao reduced a total of 584,700 shares, which accounts for 0.72% of the company's total share capital [1] - The share reduction occurred between October 27, 2025, and November 10, 2025, through centralized bidding and block trading methods [1]