股市必读：海正生材（688203）11月13日主力资金净流入198.58万元，占总成交额4.23%

Group 1 - The stock price of Zhejiang Haizheng Biomaterials Co., Ltd. (688203) closed at 13.5 yuan on November 13, 2025, with an increase of 1.28% and a turnover rate of 2.76% [1] - The trading volume on that day was 34,300 shares, with a total transaction amount of 46.89 million yuan [1] - The net inflow of main funds was 1.9858 million yuan, accounting for 4.23% of the total transaction amount, while retail investors had a net outflow of 5.0205 million yuan, representing 10.71% of the total transaction amount [1][3] Group 2 - China Petroleum & Chemical Corporation Capital Co., Ltd., a major shareholder with over 5% stake, reduced its holdings in Haizheng Biomaterials by 2,026,700 shares, which is 1% of the total share capital, between October 28 and November 11, 2025 [2] - The reduction price range was between 12.84 and 13.49 yuan per share, totaling approximately 26.73 million yuan [2] - After the reduction, China Petroleum Capital holds 10,788,194 shares, representing 5.32% of the total share capital [2][3]