BeOne Medicines Director Riva Alessandro Sells 212 ADS Shares for Tax Withholding

This Form 4 filing reports that BeOne Medicines Ltd. director Riva Alessandro sold 212 American Depositary Shares (ADS) on May 22, 2026, at a price of $309.5142 per share. The sale was conducted to satisfy mandatory tax withholding obligations in connection with the vesting of restricted share units previously granted to the director. Each ADS represents 13 ordinary shares of the company. Following this transaction, the director holds no ADS shares but maintains ownership of 54,184 ordinary shares. The filing indicates this was not a discretionary sale but rather a mandatory transaction required by the terms of the director's restricted share unit award agreement for tax withholding purposes.