X0508 4 2026-02-02 0 0001447028 Arbutus Biopharma Corp ABUS 0001936604 Androski Lindsay C/O ARBUTUS BIOPHARMA CORPORATION 701 VETERANS CIRCLE WARMINSTER PA 18974 1 1 0 0 President and CEO 0 Common Shares 2026-02-02 4 A 0 28000 0 A 28000 D Stock Option (Right to Buy) 4.39 2026-02-02 4 A 0 71700 0 A 2036-02-02 Common Shares 71700 71700 D Represents the grant of restricted stock units ("RSUs"), which represent a contingent right to receive one common share for each RSU. The RSUs vest in three equal annual installments beginning one year from the grant date, subject to the Reporting Person's continuous service as of each vesting date. Unless otherwise provided, on each vesting date, common shares will automatically be sold to satisfy the Reporting Person's tax withholding obligations in a non-discretionary transaction. Reflects the closing price of the Company's common shares on the Nasdaq Stock Market on the date of the grant. This option vests over a four-year period, with 1/48th of the shares subject to the option vesting in substantially equal monthly installments measured from one month following the grant date, subject to the Reporting Person's continuous service as of each vesting date. /s/ Tuan Nguyen as attorney-in-fact for Lindsay Androski 2026-02-02