Star Lake Bioscience (600866.SH) shareholder Yipin Group and its concerted parties' shareholding ratio has dropped to 5%.

Star Lake Bioscience (600866.SH) announced that on September 18, 2026, the company received a "Notification Letter Regarding Equity Changes Reaching the 5% Threshold" and a "Simplified Equity Change Report" issued by Yipin Group, a shareholder holding more than 5% of the company's shares, and its concerted party Tie Xiaorong. During the period from January 17, 2026 to September 17, 2026, Yipin Group and Tie Xiaorong collectively reduced their holdings of the company's shares by 83.0736 million shares through block trades and centralized bidding transactions, after which their shareholding ratio dropped to 5.00%.