William Lis - 22 Jun 2026 Form 4 Insider Report for Zai Lab Ltd (ZLAB)

Reporting relationship: Director
Issuer ticker: ZLAB
Reported as of: 22 Jun 2026
Net transaction value: -$127,354
SEC form: 4
Accepted by SEC: 24 Jun 2026, 16:05:11 UTC
Prior SEC filing: 22 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Bruce Blefeld, Attorney-in-Fact

Key filing fact

William Lis filed Form 4 for Zai Lab Ltd (ZLAB) on 24 Jun 2026.

Key facts

This page summarizes William Lis's Form 4 filing for Zai Lab Ltd (ZLAB).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 24 Jun 2026, 16:05.

Change

Previous filing in this sequence was filed on 22 Jun 2026.
Current net transaction value: -$127,354.

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 0001574558 Primary reporting owner

Lis William

Relationship: Director
Address: C/O ZAI LAB LIMITED, 314 MAIN STREET, 4TH FLOOR, SUITE 100, CAMBRIDGE
Signature: /s/ Bruce Blefeld, Attorney-in-Fact
Signature date: 24 Jun 2026

Reported non-derivative transactions

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

ZLAB transaction

American Depositary Shares

Sale

Transaction value: $127,354
Shares: -7,040
Change %: -12%
Price: $18.09
Shares after: 50,437
Date: 22 Jun 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

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

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

The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 10, 2025.