On September 8, 2026, Yusheng Wu bought 350,000 shares of TYK MEDICINES-B stock at an average of HKD 3.4626 per share, involving about HKD 1.21 million.

Prior to the acquisition, Yusheng Wu's long position in TYK MEDICINES-B was 123.47 million shares, representing 32.48%; following the acquisition, the holding changed to 123.82 million shares, with the long position ratio rising to 32.57%.

Source: Hong Kong Exchanges and Clearing Limited.