UNITED STATES

SECURITIES AND EXCHANGE
COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13A-16 OR 15D-16

OF THE SECURITIES EXCHANGE ACT OF 1934

For the month of October 2020

Commission Filing Number: 001-38205

ZAI LAB LIMITED

(Translation of registrant’s name into English)

4560 Jinke Road, Bldg. 1, 4F, Pudong, Shanghai, China 201210

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F: Form 20-F x Form 40-F o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): o

EXPLANATORY NOTE

We made an announcement dated October 22, 2020, with The Stock Exchange of Hong Kong Limited (the “Hong Kong Stock Exchange”) in relation to the end of the stabilization period and the relevant stabilizing actions the Stabilizing Manager has undertaken in connection with our global offering and listing of ordinary shares on the Hong Kong Stock Exchange. For details, please refer to exhibit 99.1 to this current report on Form 6-K.

EXHIBIT INDEX

Exhibit No.		Description

99.1		STABILIZING ACTIONS AND END OF STABILIZATION PERIOD

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	ZAI LAB LIMITED


	By:	/s/ Billy Cho
	Name:	Billy Cho
	Title:	Chief Financial Officer

Date: October 22, 2020