X0609 4 2026-10-05 0000949858 ACHIEVE LIFE SCIENCES, INC. ACHV 0001953943 Halladay Benjamin false C/O ACHIEVE LIFE SCIENCES, INC. 22722 29TH DR. SE, SUITE 100 BOTHELL WA 98021 false true false false Chief Financial Officer 0 Stock Option (right to buy) 7.01 2026-10-05 4 A 0 200000 0 A 2036-10-05 Common Stock 200000 200000 D Restricted Stock Unit (RSU) 2026-10-05 4 A 0 200000 0 A 2030-10-05 Common Stock 200000 200000 D This option will vest as to 1/4 of the total award on the first anniversary of October 5, 2026, and thereafter in substantially equal monthly installments over 36 months, subject to the Reporting Person's provision of service to the Issuer on each vesting date. Each RSU represents a contingent right to receive one share of the issuer's common stock at settlement. The RSUs will vest as to 1/4 of the total award on each of October 5, 2027, October 5, 2028, October 5, 2029 and October 5, 2030 subject to the Reporting Person's provision of service to the Issuer on each vesting date. /s/ Erik Atkisson as attorney-in-fact 2026-10-06