Form 144: 50,000 ADS Notice for Sale

Issuer reported Form 144 notice to sell 50,000 American Depositary Shares.

Rhea-AI Filing Summary

Issuer reported Form 144 notice to sell 50,000 American Depositary Shares. The filing lists an option granted on 08/25/2016 and a planned sale of 50,000 ADS on 05/13/2026 for $960,000.00. The filing also reports multiple ADS dispositions by Ying Du between 03/04/2026 and 04/06/2026, including several blocks of 50,000 ADS and smaller sales that together appear in the reported transaction history.

Insights

Securities Compliance Analyst

Form 144 lists a 50,000 ADS planned sale and prior ADS dispositions by Ying Du.

The filing records an Option Granted - 08/25/2016 and a proposed sale of $960,000.00 for 50,000 ADS on 05/13/2026. It separately documents multiple ADS dispositions by Ying Du on specific dates between 03/04/2026 and 04/06/2026, each with per‑trade proceeds shown in the excerpt.

Timing and exact cash‑flow treatment are limited to the listed dates and proceeds; subsequent disclosures or trading reports would provide settlement details or confirm actual sale execution.

Corporate Governance Specialist

Transactions are disclosure of resale activity, not corporate actions.

The record shows resale notices and historical dispositions by an individual (Ying Du) rather than any new issuer financing. The excerpt lists specific trade dates and proceeds such as $958,155.00 on 03/04/2026 and $970,935.00 on 03/06/2026.

These entries inform potential overhang from insider selling; further filings would clarify whether the planned sale on 05/13/2026 completed under Rule 144 conditions.

Key Figures

Planned ADS sale: 50,000 ADS Planned sale proceeds shown: $960,000.00 Option grant date: 08/25/2016 +4 more

7 metrics

Planned ADS sale 50,000 ADS planned sale date <date>05/13/2026</date>

Planned sale proceeds shown $960,000.00 listed with the 50,000 ADS planned sale on <date>05/13/2026</date>

Option grant date 08/25/2016 listed as 'Option Granted - 08/25/2016' tied to planned sale

Disposition example $958,155.00 proceeds for 50,000 ADS on <date>03/04/2026</date>

Disposition example $970,935.00 proceeds for 50,000 ADS on <date>03/06/2026</date>

Smaller disposition 1,067 ADS for $20,362.09 trade on <date>03/11/2026</date>

Smaller disposition 5,576 ADS for $113,695.19 trade on <date>04/02/2026</date>

Key Terms

American Depositary Shares, Option Granted, Form 144

3 terms

American Depositary Shares market

"American Depositary Shares | Fidelity Brokerage Services LLC 900 Salem Street"

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.

Option Granted financial

"Option Granted - 08/25/2016 | Issuer"

Form 144 regulatory

"144: Securities To Be Sold"

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.

FAQ

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

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

It discloses a planned sale of 50,000 American Depositary Shares on 05/13/2026 with a listed transaction amount of $960,000.00. This is reported as an Option‑based sale tied to an earlier grant.

Who reported recent ADS dispositions in the filing for ZLAB?

The filing lists multiple dispositions by Ying Du with trades between 03/04/2026 and 04/06/2026. Several entries show 50,000 ADS disposals with per‑trade proceeds recorded.

Does the Form 144 show how the securities were paid for or settled?

The excerpt shows the payment method for the planned sale as Cash and lists proceeds per trade (e.g., $958,155.00). Settlement details beyond proceeds are not included in the excerpt.

Is the reported 50,000 ADS sale an issuer issuance or resale?

The filing frames the transaction as a resale tied to an option granted and lists the filer as the Issuer for the planned sale date; the entries also include prior resale activity by an individual.

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

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Accepted by SEC EDGAR 05/13/2026 - 02:06 PM EDT 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	0001731790
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	Du Ying
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
Relationship to Issuer	Director

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	50000	960000.00	340336080	05/13/2026	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	05/13/2026	Option Granted - 08/25/2016	Issuer			50000	05/13/2026	Cash

* 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
Ying Du 899 Halei Road Building B, Pudong Shanghai F4 201203	American Depositary Shares	03/04/2026	50000	958155.00
Ying Du 899 Halei Road Building B, Pudong Shanghai F4 201203	American Depositary Shares	03/05/2026	50000	961055.00
Ying Du 899 Halei Road Building B, Pudong Shanghai F4 201203	American Depositary Shares	03/06/2026	50000	970935.00
Ying Du 899 Halei Road Building B, Pudong Shanghai F4 201203	American Depositary Shares	03/09/2026	50000	951465.00
Ying Du 899 Halei Road Building B, Pudong Shanghai F4 201203	American Depositary Shares	03/11/2026	1067	20362.09
Ying Du 899 Halei Road, Building B Pudong Shanghai F4 201203	American Depositary Shares	04/02/2026	5576	113695.19
Ying Du 899 Halei Road Building B, Pudong ShanghaI F4 201203	American Depositary Shares	04/06/2026	2653	54249.87

144: Remarks and Signature

Remarks
Date of Notice	05/13/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	11/11/2025
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/ Daniel Tucci, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Ying Du
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)