Group 1 - Tianma Technology (603668.SH) released its 2025 semi-annual report on August 27, 2025, indicating that 11 institutional investors disclosed holdings in the company, totaling 117 million shares, which represents 23.28% of the total share capital [1] - The top ten institutional investors include Fujian Tianma Investment Development Co., Ltd., Hainan Beiheng Private Fund Management Center (Limited Partnership) - Beiheng No. 13 Private Securities Investment Fund, and others, with their combined holding ratio increasing by 2.16 percentage points compared to the previous quarter [1] Group 2 - In the public fund sector, one fund, Guotai Zhongzheng Animal Husbandry ETF, increased its holdings by 0.17% compared to the previous period [2] - Three public funds, including Qianhai Kaiyuan Hong Kong-Shenzhen Agriculture Mixed (LOF) A, Everbright Baodexin Anrui One-Year Bond A, and 2000 Enhanced ETF, reduced their holdings by 0.14% compared to the previous quarter [2] - Two new public funds were disclosed this period, namely,招商稳旺混合A and Guotai Zhongzheng 2000 ETF, while four public funds were not disclosed this period, including Penghua Hongze Mixed A and others [2]

Group 1 - Huachen Equipment (300809.SZ) released its semi-annual report for 2025 on August 23, 2025, indicating that as of August 22, 2025, nine institutional investors disclosed holding a total of 13.4649 million shares, accounting for 5.31% of the total share capital [1] - The institutional investors include Hainan Xintang Trading Partnership, Industrial Bank Co., Ltd. - Huaxia CSI Robot ETF, and others, with the total institutional holding percentage decreasing by 7.21 percentage points compared to the previous quarter [1] Group 2 - In the public fund sector, two public funds increased their holdings compared to the previous period, including Huaxia CSI Robot ETF and Jin Xin Steady Strategy Mixed A, with an increase ratio of 0.41% [2] - Five new public funds disclosed their holdings this quarter, including Tianhong CSI Robot ETF and several others, while 16 public funds were not disclosed compared to the previous quarter, including Penghua Carbon Neutral Theme Mixed A and others [2]