Zai Lab Ltd — Director's Dealing 2025

Sep 3, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Zai Lab Ltd (ZLAB)
CIK: 0001704292
Period of Report: 2025-08-29

Reporting Person: Du Ying (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-08-29	American Depositary Shares	M	604376	$1.2	Acquired	1141338	Direct
2025-08-29	American Depositary Shares	F	251319	$32.59	Disposed	890019	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-08-29	Stock Options (Right to Buy)	$1.2	M	604376	Disposed	2026-03-09	American Depositary Shares (604376)	Direct

Footnotes

F1: Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.

F2: The Stock Options fully vested as of March 9, 2021.