BeOne Medicines Director Yi Qingqing Sells ADS Shares for Tax Withholding

This Form 4 filing reports that Yi Qingqing, a director of BeOne Medicines Ltd. (ONC), sold 235 American Depositary Shares (ADS) on June 1, 2026, at $279.13 per share. The sale was conducted pursuant to mandatory tax withholding provisions in the director's restricted share unit (RSU) award agreement in connection with the vesting of previously granted RSUs. Each ADS represents 13 ordinary shares. Following the transaction, the director holds 24,271 ordinary shares directly. The RSUs are 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 for change in control or certain termination events. The filing represents a routine tax-related sale by a director rather than a discretionary market transaction.