Zai Lab Ltd (ZLAB) Insider Ownership

Historic Insider Ownership Trends

Zai Lab's three largest insider shareholders as of May 30, 2026 are Nisa Leung (Director, 7.99Mn shares), Ying Du (Chairperson Ceo, 1.12Mn shares), Ying Du (Chairwoman Ceo, 1.01Mn shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Peter Wirth - 393,750 0 23 Jun, 2025
Leon O Jr Moulder - 72,602 0 23 Jun, 2025
John D Diekman - 99,769 0 23 Jun, 2025
William Lis - 35,106 0 23 Jun, 2025
Tao Fu President Coo 187,668 0 27 Sep, 2021
Rafael Amado - 57,022 0 08 Apr, 2026
Scott W Morrison - 34,533 0 23 Jun, 2025
Michel Vounatsos - 50,416 0 23 Jun, 2025
Joshua L Smiley - 117,602 0 08 Apr, 2026
Ying Du Chairperson Ceo 1,122,626 0 08 Apr, 2026
Richard Gaynor - 56,630 0 19 Mar, 2026
Frazor Titus Iii Edmondson Chief Legal Officer 23,366 0 08 Apr, 2026
Nisa Leung - 63,095 7,922,932 22 Sep, 2021
Harald Reinhart - 62,619 0 27 Jun, 2024
Yi Liang Cco President, Greater China 104,847 0 05 Apr, 2022
William Ki Chul Cho Chief Financial Officer 53,747 0 05 Apr, 2023
Alan B. Sandler Head Of Global Dev., Oncology 28,985 0 05 Apr, 2022
Kai-Xian Chen - 39,525 0 03 Jan, 2025
Yajing Chen Chief Financial Officer 31,705 0 08 Apr, 2026

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
06 Apr, 2026 Joshua L Smiley American Depositary Shares D 3,017 $20.45 117,602 D S
06 Apr, 2026 Rafael Amado American Depositary Shares D 2,739 $20.45 57,022 D S
06 Apr, 2026 Yajing Chen American Depositary Shares D 853 $20.45 31,705 D S
06 Apr, 2026 Ying Du American Depositary Shares D 2,653 $20.45 1,122,626 D S
06 Apr, 2026 Frazor Titus Iii Edmondson American Depositary Shares D 1,224 $20.45 23,366 D S
01 Apr, 2026 Frazor Titus Iii Edmondson American Depositary Shares A 2,671 - 9,165 D M
01 Apr, 2026 Yajing Chen American Depositary Shares A 1,500 - 21,499 D M
01 Apr, 2026 Rafael Amado American Depositary Shares A 19,523 - 64,280 D M
01 Apr, 2026 Joshua L Smiley American Depositary Shares A 32,062 - 123,088 D M
01 Apr, 2026 Ying Du American Depositary Shares A 10,800 - 1,120,705 D M
02 Apr, 2026 Rafael Amado American Depositary Shares A 5,391 - 69,671 D M
01 Apr, 2026 Ying Du American Depositary Shares A 3,400 - 1,124,105 D M
01 Apr, 2026 Frazor Titus Iii Edmondson American Depositary Shares A 830 - 9,995 D M
01 Apr, 2026 Yajing Chen American Depositary Shares A 13,758 - 35,257 D M
02 Apr, 2026 Joshua L Smiley American Depositary Shares A 7,145 - 130,233 D M
02 Apr, 2026 Rafael Amado American Depositary Shares D 9,910 $20.39 59,761 D S
01 Apr, 2026 Frazor Titus Iii Edmondson American Depositary Shares A 13,758 - 23,753 D M
02 Apr, 2026 Ying Du American Depositary Shares A 6,750 - 1,130,855 D M
02 Apr, 2026 Yajing Chen American Depositary Shares A 2,500 - 37,757 D M
02 Apr, 2026 Joshua L Smiley American Depositary Shares D 9,614 $20.39 120,619 D S