先锋电子：石政民累计减持150万股，减持计划已实施完毕

Group 1 - The core point of the article is that Pioneer Electronics announced the completion of a share reduction plan by its controlling shareholder, Mr. Shi Zhengmin, who has reduced his holdings by a total of 1.5 million shares as of the announcement date [1] Group 2 - The share reduction plan was officially communicated to the company on February 6, 2026, indicating a structured approach to the reduction of shares by the controlling shareholder [1]