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BCS

Changes in Beneficial Ownership · 4

ZAI LAB LTD

ZAILFOTCEQUITYCurrent

Changes in Beneficial Ownership

Filed Aug 13, 2026Accepted Aug 13, 2026, 4:15 PM EDTFiling CIK 1704292Accession 0000905148-26-003619
Share

Structured filing — 4

form4.xml

Open full document ↗

Filing details

Report period
2026-08-11
Issuer
Zai Lab Ltd
Issuer CIK
0001704292
Trading symbol
ZLAB
Rule 10b5-1 indication
Checked

Reporting owner 1

Name
Chen Yajing
Reporting owner CIK
0001985694
Relationship
Officer
Officer title
Chief Financial Officer
Address
C/O ZAI LAB LIMITED, 314 MAIN STREET, 4TH FLOOR, SUITE 100, CAMBRIDGE, MA, 02142

Non-derivative transactions

Non-derivative transactions · 1 reported row
SecurityTransaction dateCodeAmountA / DPrice (USD)Owned afterOwnership
American Depositary Shares[F1]2026-08-11S · Form 4[F2]619D25.0035,072D
Table key
S · Form 4
Sale on the market or privately
D
Direct

Footnotes

F1
Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.↩ 1
F2
The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 9, 2025.↩ 1

Signature 1

Signed
/s/ Bruce Blefeld, Attorney-in-Fact
Date
2026-08-13

Company context

Zai Lab Limited (NASDAQ: ZLAB; HKEX: 9688) is an innovative, research-based, commercial-stage biopharmaceutical company based in China and the United States. We are focused on discovering, developing, and commercializing innovative products that address medical conditions with significant unmet needs in the areas of oncology, immunology, neuroscience, and infectious disease. Our goal is to leverage our competencies and resources to positively impact human health.

Current securities

Recent company filings

  1. Entry into a Material Definitive Agreement · Unregistered Sales of Equity Securities · Regulation FD Disclosure · Other EventsOct 23, 2026
  2. 4 filingAug 21, 2026
  3. 144 filingAug 19, 2026
  4. 4 filingAug 18, 2026
  5. 144 filingAug 11, 2026

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