ZLAB Form 144: Insider ADS Sales Reported

ZLAB reported proposed sales of American Depositary Shares via a Form 144 notice indicating insider dispositions.

Accepted by SEC EDGAR 04/06/2026 - 03:26 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

ZLAB reported proposed sales of American Depositary Shares via a Form 144 notice indicating insider dispositions. The filing lists a restricted stock vesting issuance of 3,017 ADS on 04/02/2026 and two reported past sales by Joshua L. Smiley totaling 11,580 ADS across 03/13/2026 and 04/02/2026.

Key Figures

Restricted ADS vesting: 3,017 ADS Sale on 03/13/2026: 1,966 ADS Sale on 04/02/2026: 9,614 ADS +4 more

7 metrics

Restricted ADS vesting 3,017 ADS restricted stock vesting on 04/02/2026

Sale on 03/13/2026 1,966 ADS Joshua L. Smiley reported sale on 03/13/2026

Sale on 04/02/2026 9,614 ADS Joshua L. Smiley reported sale on 04/02/2026

Aggregate reported ADS sold (two entries) 11,580 ADS sum of the two reported past sales on 03/13/2026 and 04/02/2026

Reported monetary figures $36,623.04 proceeds associated with 1,966 ADS on 03/13/2026

Reported monetary figures $196,030.42 proceeds associated with 9,614 ADS on 04/02/2026

Form reference date 04/06/2026 date shown in securities information line

Key Terms

American Depositary Shares, Form 144, Restricted Stock Vesting, Compensation

4 terms

American Depositary Shares market

"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.

Form 144 regulatory

"CONTENT METADATA indicates form_type: "144""

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Restricted Stock Vesting financial

"Restricted Stock Vesting | Issuer | 3017 | 04/02/2026"

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

"3017 | 04/02/2026 | Compensation"

FAQ

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

What does ZLAB's Form 144 disclose about insider sales?

The Form 144 discloses proposed dispositions of American Depositary Shares. It lists a restricted stock vesting of 3,017 ADS on 04/02/2026 and two reported past sales by Joshua L. Smiley totaling 11,580 ADS on 03/13/2026 and 04/02/2026.

How many ADS did Joshua L. Smiley sell in recent transactions for ZLAB?

The filing shows Joshua L. Smiley sold 1,966 ADS on 03/13/2026 and 9,614 ADS on 04/02/2026, totaling 11,580 ADS across those two reported transactions, with associated proceeds listed in the filing.

What is the restricted stock vesting amount reported for ZLAB?

The Form 144 lists a restricted stock vesting event of 3,017 American Depositary Shares dated 04/02/2026, identified as compensation issued by the issuer in the filing's securities-to-be-sold section.

Which broker-dealer is named on the ZLAB Form 144?

The filing names Fidelity Brokerage Services LLC with an address in Smithfield, RI. It appears in the securities information row associated with the American Depositary Shares and the Form 144 submission details.

Are trading venue and filing date shown on the ZLAB notice?

Yes. The excerpt shows NASDAQ as the exchange and a filing-related date of 04/06/2026 in the securities information line of the Form 144 extract.

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

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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	0001725189
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	Smiley Joshua L
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	3017	61693.12	307140690	04/06/2026	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	04/02/2026	Restricted Stock Vesting	Issuer			3017	04/02/2026	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
Joshua L. Smiley 899 Halei Road Building B, Pudong Shanghai F4 201203	American Depositary Shares	03/13/2026	1966	36623.04
Joshua L. Smiley 899 Halei Road Building B, Pudong Shanghai F4 2010203	American Depositary Shares	04/02/2026	9614	196030.42

144: Remarks and Signature

Remarks	Sale includes an amount necessary to cover a tax obligation resulting from the settlement of a vested equity award distribution.
Date of Notice	04/06/2026
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 Joshua L. Smiley
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)