Form 4 Filing for BeOne Medicines Ltd.

This filing details a transaction by Wu Xiaobin, President and COO of BeOne Medicines Ltd. On June 23, 2026, Wu Xiaobin disposed of 1,292 American Depositary Shares (ADS) with a price of $276.2592 per share. This sale was part of a mandatory tax withholding due to the vesting of a restricted share unit award. Following this transaction, Wu Xiaobin holds 1,273,724 Ordinary Shares directly. Additionally, he holds 12,365 American Depositary Shares directly and 4,000 American Depositary Shares indirectly through his wife. Each ADS represents 13 Ordinary Shares. The sale occurred at a weighted average price, with individual sales ranging from $276.23 to $276.475.