MOULDER LEON O JR 4

What Happened
Leon O. Moulder Jr., a director of Zai Lab Ltd. (ZLAB), was granted 22,371 American Depositary Shares (ADSs) on 2026-06-17. The transaction is reported as an award/grant (code A) with a reported acquisition price of $0.00 (total $0 reported). These are restricted shares that vest in full on June 17, 2027, subject to his continued service on the board.

Key Details

• Transaction date: 2026-06-17; filing date: 2026-06-22 (filed 5 days after the transaction).
• Transaction type/code: Award/Grant (A). Price reported: $0.00; number of ADSs acquired: 22,371.
• Shares owned after transaction: Not specified in the filing.
• Footnote: Each ADS represents 10 ordinary shares and the Form 4 reports holdings in ADS terms (F1).
• Vesting: These restricted shares vest in full on June 17, 2027, contingent on continued board service (F2).
• Timeliness: Filing was submitted on 2026-06-22 for a 2026-06-17 transaction, later than the typical 2-business-day Form 4 deadline.

Context
This is a director compensation award (restricted ADSs) rather than an open-market purchase or sale. Awards like this are common for board compensation and do not, by themselves, imply a buy or sell signal. Note that the Form 4 reports $0 for the acquisition value; that reporting convention does not necessarily reflect the economic or taxable value that may be recognized later when the shares vest.