ZLAB insider plans sale of 619 ADS

ZLAB filed a notice for a proposed sale of American Depositary Shares.

Rhea-AI Filing Summary

ZLAB filed a notice for a proposed sale of American Depositary Shares. The planned transaction covers 619 ADS, to be sold through Fidelity Brokerage Services LLC on 08/11/2026 on NASDAQ, with an aggregate value of 15,475.00. The seller, Yajing Chen, previously sold 2,264 ADS on 06/26/2026 for 39,532.38. The 619 ADS to be sold were originally acquired from restricted stock vesting on 10/01/2024 as compensation from the issuer.

Key Figures

ADS to be sold: 619 American Depositary Shares Planned sale value: 15,475.00 Prior ADS sold: 2,264 American Depositary Shares +2 more

5 metrics

ADS to be sold 619 American Depositary Shares Planned sale through Fidelity Brokerage Services LLC on 08/11/2026

Planned sale value 15,475.00 Aggregate value for 619 ADS to be sold on NASDAQ

Prior ADS sold 2,264 American Depositary Shares Securities sold during the past 3 months on 06/26/2026

Proceeds from prior sale 39,532.38 Total consideration for 2,264 ADS sold on 06/26/2026

Shares acquired via vesting 619 American Depositary Shares Acquired on 10/01/2024 from restricted stock vesting as compensation

Key Terms

American Depositary Shares, Restricted Stock Vesting, compensation, brokerage services

4 terms

American Depositary Shares financial

"American Depositary Shares | Fidelity Brokerage Services LLC"

American depositary shares (ADSs) are a way for investors in the United States to buy shares of foreign companies without dealing with international markets directly. They represent ownership in a foreign company's stock and are traded on U.S. stock exchanges, making it easier for American investors to buy, sell, and own parts of companies from around the world.

Restricted Stock Vesting financial

"American Depositary Shares | 10/01/2024 | Restricted Stock Vesting"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

compensation financial

"619 | 10/01/2024 | Compensation"

brokerage services financial

"American Depositary Shares | Fidelity Brokerage Services LLC"

Brokerage services are firms or online platforms that act as the bridge between individual or institutional investors and financial markets, handling the buying, selling and safekeeping of stocks, bonds and other securities. They also provide tools like trading platforms, market research, account administration and optional credit for trading on margin; these features and fees directly affect an investor’s costs, access to opportunities and the speed and reliability of executing trades—like choosing the right driver and route for an important trip.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What securities is ZLAB registering for sale in this Form 144 notice?

The filing covers 619 American Depositary Shares (ADS) of ZLAB. These ADS are planned to be sold through Fidelity Brokerage Services LLC on NASDAQ as disclosed in the notice.

When are the 619 ZLAB American Depositary Shares expected to be sold?

The planned sale date for the 619 ADS of ZLAB is 08/11/2026. This date is listed as the prospective transaction date for the shares to be sold on NASDAQ through the designated broker.

Who is the reporting security holder in the ZLAB Form 144 filing?

The reporting security holder is Yajing Chen. The notice lists this individual along with an address in Shanghai and details of both the planned sale and prior sales of American Depositary Shares.

What prior ZLAB share sales are disclosed in this Form 144?

The filing reports that 2,264 American Depositary Shares were sold on 06/26/2026 for a total of 39,532.38. This prior transaction is disclosed as securities sold during the past three months.

How were the ZLAB shares being sold originally acquired by the insider?

The 619 ADS now planned for sale were acquired on 10/01/2024 via restricted stock vesting from the issuer as compensation, according to the acquisition section in the disclosure.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/11/2026 - 04:23 PM Accepted by SEC EDGAR 08/11/2026 - 04:22 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001985694
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Zai Lab Ltd
SEC File Number	001-38205
Address of Issuer	899 HALEI ROAD BUILDING B, PUDONG SHANGHAI CHINA 201203
Phone	862161632588
Name of Person for Whose Account the Securities are To Be Sold	Chen Yajing
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
American Depositary Shares	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	619	15475.00	430452680	08/11/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
American Depositary Shares	10/01/2024	Restricted Stock Vesting	Issuer			619	10/01/2024	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Yajing Chen 899 Halei Road Shanghai F4 201203	American Depositary Shares	06/26/2026	2264	39532.38

144: Remarks and Signature

Remarks
Date of Notice	08/11/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	12/09/2025
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Gary Redman, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Yajing Chen
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)