Joshua L. Smiley - 06 Apr 2026 Form 4 Insider Report for Zai Lab Ltd (ZLAB)

Reporting relationship: President and Chief Operating Officer
Issuer ticker: ZLAB
Reported as of: 06 Apr 2026
Net transaction value: -$61,692
SEC form: 4
Accepted by SEC: 08 Apr 2026, 19:35:16 UTC
Prior SEC filing: 16 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Bruce Blefeld, Attorney-in-Fact

Key filing fact

Joshua L. Smiley filed Form 4 for Zai Lab Ltd (ZLAB) on 08 Apr 2026.

Key facts

This page summarizes Joshua L. Smiley's Form 4 filing for Zai Lab Ltd (ZLAB).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 08 Apr 2026, 19:35.

Change

Previous filing in this sequence was filed on 16 Mar 2026.
Current net transaction value: -$61,692.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001725189 Primary reporting owner

Smiley Joshua L

Relationship: President and Chief Operating Officer
Address: C/O ZAI LAB LIMITED, 314 MAIN STREET, 4TH FLOOR, SUITE 100, CAMBRIDGE
Signature: /s/ Bruce Blefeld, Attorney-in-Fact
Signature date: 08 Apr 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ZLAB transaction

American Depositary Shares

Sale

Transaction value: $61,692
Shares: -3,017
Change %: -2.5%
Price: $20.45
Shares after: 117,602
Date: 06 Apr 2026
Ownership: Direct
Footnotes: F1, F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote 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.

Footnote F2

These ADSs were sold automatically to cover taxes upon vesting of Restricted Share Units.

SEC remarks

President and Chief Operating Officer