百亿私募二季度重仓股曝光，海康威视等个股遭私募减持

Group 1 - The core viewpoint of the article highlights the significant presence of billion-yuan private equity firms in the A-share market, particularly during the second quarter, with a notable reduction in holdings for certain stocks like Hikvision and Chipone [1] - As of August 18, over 660 A-share listed companies have disclosed their mid-year reports for 2025, with nearly 130 companies showing private equity firms among their top ten circulating shareholders [1] - The total market value of the stocks held by these private equity firms exceeds 29 billion yuan, indicating a substantial investment footprint in the market [1] Group 2 - 15 billion-yuan private equity firms appeared in the top ten circulating shareholders of nearly 30 listed companies, with four firms holding more than three stocks each [1] - Notable stocks that experienced reductions in holdings by billion-yuan private equity firms include Hikvision (002415.SZ) and Chipone (688508.SH) [1]