Yajing Chen - 12 Mar 2025 Form 4 Insider Report for Zai Lab Ltd (ZLAB)

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	Stock Options (Right to Buy)	Award	$0	+52.4K		$0.00	52.4K	12 Mar 2025	American Depositary Shares	52.4K	$35.55	Direct	F1, F2
transaction	ZLAB	Restricted Share Units	Award	$0	+17K		$0.00	17K	12 Mar 2025	American Depositary Shares	17K		Direct	F1, F3, F4

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

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	The option vests in equal annual installments over four years beginning on 03/12/2026, the first anniversary of the date of grant, subject to continuous service.
F3	Each Restricted Share Unit ("RSU") represents a contingent right to receive one ADS.
F4	The RSUs vest in equal annual installments over four years beginning on 03/12/2026, 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.