Director Margaret Dugan Sells 212 ADS in BeOne Medicines

This Form 4 filing reports that Margaret Dugan, a director of BeOne Medicines Ltd. (ticker: ONC), sold 212 American Depositary Shares (ADS) on May 22, 2026, at a price of $309.6017 per share. The sale was conducted to satisfy mandatory tax withholding requirements related to 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 no longer holds any ADS but continues to hold 54,184 ordinary shares directly. The filing notes that the restricted share units were scheduled to vest on the earlier of the first anniversary of the grant date or the date of the next annual general meeting, with accelerated vesting provisions in case of change in control or certain termination events.