Du Ying - 02 Jul 2025 Form 4 Insider Report for Zai Lab Ltd (ZLAB)

Role: Chairperson & CEO, Director
Signature: /s/ Bruce Blefeld, Attorney-in-Fact
Issuer symbol: ZLAB
Transactions as of: 02 Jul 2025
Net transactions value: $0
Form type: 4
Filing time: 07 Jul 2025, 16:13:07 UTC
Previous filing: 03 Jul 2025
Next filing: 12 Aug 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Du Ying	Chairperson & CEO, Director	C/O ZAI LAB LIMITED, 314 MAIN STREET, 4TH FLOOR, SUITE 100, CAMBRIDGE	/s/ Bruce Blefeld, Attorney-in-Fact	07 Jul 2025	0001731790

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	ZLAB	Restricted Share Units	Award	$0	+44,194		$0.000000	44,194	02 Jul 2025	American Depositary Shares	44,194		Direct	F1, F2, F3

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

Explanation of Responses:

Id	Content
F1	Each Restricted Share Unit ("RSU") represents a contingent right to receive one American Depositary Share ("ADS").
F2	The RSUs vest in equal annual installments over four years beginning on 07/02/2026, the first anniversary of the date of grant, subject to continuous service. Vested shares will be delivered in the form of ADSs to the reporting person following vesting.
F3	Each 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.