正海生物：股东Longwood拟减持不超过2%

Group 1 - Longwood Biotechnologies Inc. holds 13.81 million shares of Zhenghai Biological, accounting for 7.67% of the total shares (7.78% after excluding repurchase) [1] - Longwood plans to reduce its holdings by up to 3.6 million shares within three months from March 23, 2026, to June 22, 2026, representing 2% of the total share capital (2.03% after excluding repurchase) [1] - The reduction will occur through centralized bidding or block trading, with a limit of 1% for bidding and 2% for block trading within any 90 natural days, with prices determined by market conditions [1]