Zai Lab Ltd (ZLAB) Insider Ownership

Historic Insider Ownership Trends

As of March 23, 2026, Zai Lab's top three insider holders are Nisa Leung (Director, 7.92Mn shares), Ying Du (Chairperson Ceo, 964.16K shares), Peter Wirth (Director, 393.75K 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
Nisa Leung 0 7,922,932 22 Sep, 2021
Ying Du Chairperson Ceo 1,109,905 0 12 Mar, 2026
Ying Du Chairperson Ceo 964,161 0 10 Mar, 2026
Peter Wirth 393,750 0 23 Jun, 2025
Tao Fu President Coo 187,668 0 27 Sep, 2021
Yi Liang Cco President, Greater China 104,847 0 05 Apr, 2022
John D Diekman 99,769 0 23 Jun, 2025
Joshua L Smiley See Remarks 91,026 0 16 Mar, 2026
Joshua L Smiley See Remarks 86,604 0 12 Sep, 2025
Tao Fu President Coo 0 77,500 29 Oct, 2021
Nisa Leung 73,926 0 23 Jun, 2025
Leon O Jr Moulder 72,602 0 23 Jun, 2025
Harald Reinhart See Remarks 62,619 0 27 Jun, 2024
Richard Gaynor 56,630 0 19 Mar, 2026
Richard Gaynor 54,899 0 23 Jun, 2025
William Ki Chul Cho Chief Financial Officer 53,747 0 05 Apr, 2023
Michel Vounatsos 50,416 0 23 Jun, 2025
Rafael Amado See Remarks 44,757 0 16 Mar, 2026
Rafael Amado See Remarks 42,391 0 05 Mar, 2026
Kai-Xian Chen 39,525 0 03 Jan, 2025
William Lis 35,106 0 23 Jun, 2025
Scott W Morrison 34,533 0 23 Jun, 2025
Alan B. Sandler Head Of Global Dev., Oncology 28,985 0 05 Apr, 2022
Yajing Chen Chief Financial Officer 19,999 0 16 Mar, 2026
Yajing Chen Chief Financial Officer 17,444 0 04 Nov, 2025
Frazor Titus Iii Edmondson Chief Legal Officer 3,517 0 06 Mar, 2026
Frazor Titus Iii Edmondson Chief Legal Officer 3,517 0 06 Mar, 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
17 Mar, 2026 Richard Gaynor American Depositary Shares A 1,731 $18.91 56,630 D P
11 Mar, 2026 Ying Du Stock Options (Right to Buy) A 353,430 $0.00 353,430 D A
12 Mar, 2026 Rafael Amado American Depositary Shares A 5,323 - 47,714 D M
12 Mar, 2026 Yajing Chen American Depositary Shares A 4,258 - 21,702 D M
12 Mar, 2026 Joshua L Smiley American Depositary Shares A 6,388 - 92,992 D M
12 Mar, 2026 Frazor Titus Iii Edmondson American Depositary Shares A 4,258 - 7,775 D M
13 Mar, 2026 Joshua L Smiley American Depositary Shares D 1,966 $18.63 91,026 D S
13 Mar, 2026 Frazor Titus Iii Edmondson American Depositary Shares D 1,281 $18.63 6,494 D S
13 Mar, 2026 Yajing Chen American Depositary Shares D 1,703 $18.63 19,999 D S
13 Mar, 2026 Rafael Amado American Depositary Shares D 2,957 $18.63 44,757 D S
11 Mar, 2026 Ying Du Restricted Share Units A 32,419 $0.00 32,419 D A
04 Mar, 2026 Joshua L Smiley Stock Options (Right to Buy) A 103,950 $0.00 103,950 D A
04 Mar, 2026 Rafael Amado Stock Options (Right to Buy) A 103,950 $0.00 103,950 D A
04 Mar, 2026 Yajing Chen Stock Options (Right to Buy) A 83,160 $0.00 83,160 D A
04 Mar, 2026 Frazor Titus Iii Edmondson Stock Options (Right to Buy) A 83,160 $0.00 83,160 D A
04 Mar, 2026 Yajing Chen Restricted Share Units A 27,027 $0.00 27,027 D A
04 Mar, 2026 Joshua L Smiley Restricted Share Units A 33,783 $0.00 33,783 D A
04 Mar, 2026 Frazor Titus Iii Edmondson Restricted Share Units A 27,027 $0.00 27,027 D A
04 Mar, 2026 Rafael Amado Restricted Share Units A 33,783 $0.00 33,783 D A
12 Mar, 2026 Frazor Titus Iii Edmondson Restricted Share Units D 4,258 $0.00 12,777 D M