Zai Lab (ZLAB) files Form 144 to sell $493K in ADS on 6/20/25

Rhea-AI Filing Summary

Zai Lab Limited (NASDAQ: ZLAB) has filed a Form 144 indicating a proposed insider sale.

• Securities: 13,814 American Depositary Shares (ADS).
• Aggregate market value: US$492,745.38.
• % of shares outstanding: ~0.003% of the 486,853,250 ADS outstanding, a very small fraction.
• Planned sale date: 20 June 2025.
• Acquisition source: Restricted-stock vesting on 18 June 2025; consideration classified as compensation.
• Broker: Fidelity Brokerage Services LLC, Smithfield, RI.

The filing is routine, signalling an intention—rather than an executed transaction—to dispose of recently vested shares. No prior sales were reported in the past three months, and the filer affirms lack of undisclosed material adverse information. Given the minuscule size relative to the public float, the notice is unlikely to have a material valuation impact but may interest investors tracking insider trading trends.

Insights

Securities Analyst

TL;DR: Minor Form 144 shows insider plans to sell 13.8k ADS (~$0.5 M), just 0.003% of float—neutral market impact.

The Form 144 discloses a prospective sale of 13,814 ZLAB ADS, valued at roughly US$493 k, with settlement targeted for 20 June 2025. The shares stem from a standard restricted-stock vest that occurred two days earlier. Given the immense share base of 486.9 million ADS, the stake represents a negligible slice of equity and does not meaningfully alter insider ownership levels. The absence of other recent sales and the Rule 144 certification that no undisclosed adverse information exists further diminishes any negative signalling. Overall, this is an administrative disclosure with no material capital-markets ramifications.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	13814	492745.38	486853250	06/20/2025	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	06/18/2025	Restricted Stock Vesting	Issuer			13814	06/18/2025	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

Nothing to Report

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

How many ZLAB shares are covered by the Form 144 notice?

The filing covers 13,814 American Depositary Shares.

What is the approximate dollar value of the proposed ZLAB insider sale?

The aggregate market value is US$492,745.38.

When is the planned sale date for the ZLAB ADS under Form 144?

The filer listed an approximate sale date of 20 June 2025.

What percentage of ZLAB’s outstanding shares does the 13,814 ADS represent?

The sale equals roughly 0.003% of the 486,853,250 ADS outstanding.

How were the shares originally acquired by the insider?

They were obtained via restricted-stock vesting on 18 June 2025, classified as compensation.