X0306 4 2022-07-07 0 0001799448 Aligos Therapeutics, Inc. ALGS 0001730866 Calhoun Lesley Ann C/O ALIGOS THERAPEUTICS, INC. 1 CORPORATE DRIVE, 2ND FLOOR SOUTH SAN FRANCISCO CA 94080 0 0 0 1 See Remarks Stock Option (Right to Buy) 1.41 2022-07-07 4 A 0 52500 0.00 A 2032-07-07 Common Stock 52500 52500 D 1/48th of the total number of shares vest in forty-eight (48) successive and equal monthly installments measured from July 7, 2022 (the "Vesting Commencement Date"), such that 100% of the shares subject to the option will be fully vested and exercisable on the fourth anniversary of the Vesting Commencement Date, subject to the Reporting Person's continued service through each vesting date. Chief Financial Officer /s/ Lucinda Y. Quan, as attorney-in fact for Lesley Ann Calhoun 2022-07-11