X0609 4 2026-06-08 0 0001651308 BeOne Medicines Ltd. ONC 0001042047 OYLER JOHN true C/O BEONE MEDICINES I GMBH AESCHENGRABEN 27, 21ST FLOOR BASEL V8 4051 SWITZERLAND 1 1 0 0 Chief Executive Officer 0 Ordinary Shares 5545055 D Ordinary Shares 481533 I See Footnote Ordinary Shares 7699158 I See Footnote Ordinary Shares 28204115 I See Footnote Ordinary Shares 9545000 I See Footnote Ordinary Shares 102188 I See Footnote American Depositary Shares 2026-06-08 4 S 0 3820 270.3847 D 1120 D American Depositary Shares 2026-06-08 4 S 0 1120 271.1411 D 0 D These securities are held by the P&O Trust, the beneficiaries of which include the Reporting Person's child and others, for which the Reporting Person disclaims beneficial ownership. These securities are held in a grantor retained annuity trust, of which the Reporting Person's father is a trustee, for which the Reporting Person disclaims beneficial ownership. These securities are held by Oyler Investment LLC, of which 99% of the the limited liability company interest owned by a grantor retain annuity trust, of which the Reporting Person's father is a trustee, for which the Reporting Person disclaims beneficial ownership. These securities are held for the benefit of the Reporting Person in a Roth IRA PENSCO trust account. These securities are held by The John Oyler Legacy Trust for the benefit of the Reporting Person's minor child, for which the Reporting Person disclaims beneficial ownership. Each American Depositary Share represents 13 Ordinary Shares The sale was effected pursuant to a mandatory tax withholding provision in the Reporting Person's restricted share unit award agreement in connection with the vesting of a restricted share unit award previously granted to the Reporting Person. 1/4th of the securities will vest on each anniversary of June 5, 2024, subject to continued service. Unvested securities are subject to accelerated vesting upon change of control or certain termination events. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $269.89 to $270.86, inclusive. The Reporting Person has provided to the Issuer, and undertakes to provide to the staff of the Securities and Exchange Commission or any security holder of the Issuer, upon request, full information regarding the number of American Depositary Shares sold at each separate price. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $270.98 to $271.24, inclusive. The Reporting Person has provided to the Issuer, and undertakes to provide to the staff of the Securities and Exchange Commission or any security holder of the Issuer, upon request, full information regarding the number of American Depositary Shares sold at each separate price. /s/ Qing Nian, as Attorney-in-Fact 2026-06-10