上声电子：上声投资未实施减持计划

Group 1 - The core point of the article is that Suzhou Shangsheng Investment Management Co., Ltd., a shareholder holding more than 5% of the shares, planned to reduce its holdings by up to 4.8854 million shares, which represents 3.00% of the company's total shares at the time of the announcement [1] - The planned reduction period was set from July 17, 2025, to October 16, 2025, through centralized bidding and block trading methods [1] - As of the end of the reduction period, Suzhou Shangsheng Investment did not reduce any shares, maintaining its holding of 41.4 million shares, which accounts for 25.42% of the total shares [1]