Richard Alistair Stewart - 18 Sep 2025 Form 4 Insider Report for ACHIEVE LIFE SCIENCES, INC. (ACHV)

Role: Chief Executive Officer, Director
Signature: /s/ Sandra Thomson as attorney-in-fact for Richard Stewart
Issuer symbol: ACHV
Transactions as of: 18 Sep 2025
Net transactions value: -$378,143
Form type: 4
Filing time: 22 Sep 2025, 16:29:13 UTC
Previous filing: 08 Sep 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Stewart Richard Alistair	Chief Executive Officer, Director	22722 29TH DR SE, SUITE 100, BOTHELL	/s/ Sandra Thomson as attorney-in-fact for Richard Stewart	22 Sep 2025	0001713369

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ACHV	Common Stock	Options Exercise	$0	+297,500	+489%	$0.000000	358,376	18 Sep 2025	Direct	F1
transaction	ACHV	Common Stock	Sale	$378,143	-129,501	-36%	$2.92	228,875	18 Sep 2025	Direct	F2, F3
holding	ACHV	Common Stock						359	18 Sep 2025	By Spouse
holding	ACHV	Common Stock						882	18 Sep 2025	By Ricanto Limited	F4

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	ACHV	Performance Restricted Stock Unit (PRSU)	Options Exercise	$0	-140,000	-100%	$0.000000	0	18 Sep 2025	Common Stock	140,000		Direct	F5, F6
transaction	ACHV	Performance Restricted Stock Unit (PRSU)	Options Exercise	$0	-157,500	-100%	$0.000000	0	18 Sep 2025	Common Stock	157,500		Direct	F5, F6

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents shares of common stock acquired upon settlement of the performance restricted stock units ("PRSUs") listed in Table II.
F2	Represents shares of common stock that have been sold by the Reporting Person to satisfy income tax withholding and remittance obligations in connection with the net settlement of the PRSUs.
F3	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.83 to $3.02 per share, inclusive. The reporting person hereby undertakes to provide to the Issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F4	The reporting holder is the principal owner of Ricanto Limited.
F5	Each PRSU represents a contingent right to receive one share of the issuer's common stock at settlement.
F6	Pursuant to the terms of the award agreement governing the PRSU, the total number of shares underlying the PRSU vest on the achievement of one of certain milestones.