Du Ying - 28 Jun 2024 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: 28 Jun 2024
Net transactions value: -$122,573
Form type: 4
Filing time: 02 Jul 2024, 16:30:19 UTC
Previous filing: 27 Jun 2024
Next filing: 19 Aug 2024
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ZLAB	American Depositary Shares	Options Exercise		+17,970	+1.7%		1,088,923	28 Jun 2024	Direct	F1, F2, F3, F4
transaction	ZLAB	American Depositary Shares	Sale	$122,573	-7,013	-0.64%	$17.48	1,081,910	01 Jul 2024	Direct	F1, F5

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	Options Exercise	$0	-17,970	-25%	$0.000000	53,910	28 Jun 2024	American Depositary Shares	17,970		Direct	F1, F3, F6
transaction	ZLAB	Restricted Share Units	Award	$0	+72,000		$0.000000	72,000	01 Jul 2024	American Depositary Shares	72,000		Direct	F1, F3, F7

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

Explanation of Responses:

Id	Content
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	ADSs acquired upon vesting of Restricted Share Units ("RSUs").
F3	Each RSU represents a contingent right to receive one ADS.
F4	This number reflects a net reduction of 71,880 ADSs, which represents RSUs that previously reported as aggregated with ADSs in Table I and are now separately reported in Table II.
F5	These ADSs were sold automatically to cover taxes upon vesting of RSUs.
F6	The RSUs vest in equal annual installments over four years beginning on 06/29/2024, 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.
F7	The RSUs vest in equal annual installments over four years beginning on 07/01/2025, 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.