Zai Lab Ltd
ZLAB- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001704292
In the last 90 days, Zai Lab Ltd insiders filed 1 open-market purchase and 4 sales; 92 institutions reported holding it in 13F filings for Q2 2026, worth $822.8M in total; no superinvestor holds it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Zai Lab Ltd insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 1 filing
- 1 insider, $33.1K in total
- Open-market sells
- 4 filings
- 3 insiders, $365.4K in total
- Insiders trading
- 4
- Net value
- −$332.3K
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Zai Lab Ltd, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Chen Yajing | Chief Financial Officer | 35,635 | Aug 21, 2026 | 9 |
| Lis William | Director | 41,931 | Aug 13, 2026 | 3 |
| Gaynor Richard | Director | 80,737 | Jul 6, 2026 | 3 |
| Du Ying | Chairperson & CEO | 1,221,401 | Jul 6, 2026 | 14 |
| Edmondson Frazor Titus III | Chief Legal Officer | 30,346 | Jun 29, 2026 | 8 |
| Wirth Peter | Director | 416,121 | Jun 22, 2026 | 1 |
| Moulder Leon O Jr | Director | 94,973 | Jun 22, 2026 | 1 |
| Diekman John D | Director | 122,140 | Jun 22, 2026 | 1 |
| Morrison Scott W | Director | 56,904 | Jun 22, 2026 | 1 |
| Vounatsos Michel | Director | 72,787 | Jun 22, 2026 | 1 |
| Leung Nisa | Director | 96,297 | Jun 22, 2026 | 1 |
| Wang Yizhe | Operating Partner | – | Jun 8, 2026 | 1 |
| Amado Rafael | See Remarks | 57,022 | Apr 8, 2026 | 5 |
| Smiley Joshua L | See Remarks | 117,602 | Apr 8, 2026 | 3 |
| Chen Kai-Xian | Director | 39,525 | Jan 3, 2025 | 0 |
| Reinhart Harald | See Remarks | 62,619 | Jun 27, 2024 | 0 |
| Cho William Ki Chul | Chief Financial Officer | 53,747 | Apr 5, 2023 | 0 |
| Liang Yi | CCO & President, Greater China | 104,847 | Jun 27, 2022 | 0 |
| Sandler Alan B. | Head of Global Dev., Oncology | 28,985 | Jun 27, 2022 | 0 |
| Fu Tao | President & COO | 77,500Indirect | Oct 29, 2021 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Jan 2, 2026 (view filing) | Dec 31, 2025 | 2 days | Amado RafaelSee Remarks | SSaleAmerican Depositary Shares | −10.8K | $17.43 | −$188.0K | −17.1%52.4K after | |
| Mar 5, 2026 (view filing) | Mar 3 | 2 days | Amado RafaelSee Remarks | SSaleAmerican Depositary Shares | −10.0K | $17.38 | −$173.8K | −19.1%42.4K after | 10b5-1 |
| Mar 6, 2026 (view filing) | Mar 4-5 | 2 days | Du YingChairperson & CEO | SSaleAmerican Depositary Shares | −100.0K | $19.19 | −$1.92M | −9.4%964.2K after | 3 lots10b5-1 |
| Mar 6, 2026 (view filing) | Mar 5 | 1 day | Edmondson Frazor Titus IIIChief Legal Officer | SSaleAmerican Depositary Shares | −15.6K | $19.06 | −$296.7K | −81.6%3.52K after | 10b5-1 |
| Mar 10, 2026 (view filing) | Mar 6-9 | 4 days | Du YingChairperson & CEO | SSaleAmerican Depositary Shares | −100.0K | $19.23 | −$1.92M | −9.4%964.2K after | 2 lots10b5-1 |
| Mar 12, 2026 (view filing) | Mar 11 | 1 day | Du YingChairperson & CEO | SSaleAmerican Depositary Shares | −1.07K | $19.08 | −$20.4K | −0.1%1.11M after | 10b5-1 |
| Mar 16, 2026 (view filing) | Mar 13 | 3 days | Amado RafaelSee Remarks | SSaleAmerican Depositary Shares | −2.96K | $18.63 | −$55.1K | −6.2%44.8K after | |
| Mar 16, 2026 (view filing) | Mar 13 | 3 days | Chen YajingChief Financial Officer | SSaleAmerican Depositary Shares | −1.70K | $18.63 | −$31.7K | −7.8%20.0K after | |
| Mar 16, 2026 (view filing) | Mar 13 | 3 days | Edmondson Frazor Titus IIIChief Legal Officer | SSaleAmerican Depositary Shares | −1.28K | $18.63 | −$23.9K | −16.5%6.49K after | |
| Mar 16, 2026 (view filing) | Mar 13 | 3 days | Smiley Joshua LSee Remarks | SSaleAmerican Depositary Shares | −1.97K | $18.63 | −$36.6K | −2.1%91.0K after | |
| Mar 19, 2026 (view filing) | Mar 17 | 2 days | Gaynor RichardDirector | PPurchaseAmerican Depositary Shares | +1.73K | $18.91 | +$32.7K | +3.2%56.6K after | 10b5-1 |
| Apr 3, 2026 (view filing) | Apr 2 | 1 day | Amado RafaelSee Remarks | SSaleAmerican Depositary Shares | −9.91K | $20.39 | −$202.1K | −14.2%59.8K after | |
| Apr 3, 2026 (view filing) | Apr 2 | 1 day | Chen YajingChief Financial Officer | SSaleAmerican Depositary Shares | −5.20K | $20.39 | −$106.0K | −13.8%32.6K after | |
| Apr 3, 2026 (view filing) | Apr 2 | 1 day | Du YingChairperson & CEO | SSaleAmerican Depositary Shares | −5.58K | $20.39 | −$113.7K | −0.5%1.13M after | |
| Apr 3, 2026 (view filing) | Apr 2 | 1 day | Edmondson Frazor Titus IIIChief Legal Officer | SSaleAmerican Depositary Shares | −4.19K | $20.39 | −$85.5K | −14.6%24.6K after | |
| Apr 3, 2026 (view filing) | Apr 2 | 1 day | Smiley Joshua LSee Remarks | SSaleAmerican Depositary Shares | −9.61K | $20.39 | −$196.0K | −7.4%120.6K after | |
| Apr 8, 2026 (view filing) | Apr 6 | 2 days | Amado RafaelSee Remarks | SSaleAmerican Depositary Shares | −2.74K | $20.45 | −$56.0K | −4.6%57.0K after | |
| Apr 8, 2026 (view filing) | Apr 6 | 2 days | Chen YajingChief Financial Officer | SSaleAmerican Depositary Shares | −853 | $20.45 | −$17.4K | −2.6%31.7K after | |
| Apr 8, 2026 (view filing) | Apr 6 | 2 days | Du YingChairperson & CEO | SSaleAmerican Depositary Shares | −2.65K | $20.45 | −$54.3K | −0.2%1.12M after | |
| Apr 8, 2026 (view filing) | Apr 6 | 2 days | Edmondson Frazor Titus IIIChief Legal Officer | SSaleAmerican Depositary Shares | −1.22K | $20.45 | −$25.0K | −5.0%23.4K after | |
| Apr 8, 2026 (view filing) | Apr 6 | 2 days | Smiley Joshua LSee Remarks | SSaleAmerican Depositary Shares | −3.02K | $20.45 | −$61.7K | −2.5%117.6K after | |
| May 15, 2026 (view filing) | May 13-14 | 2 days | Du YingChairperson & CEO | SSaleAmerican Depositary Shares | −100.0K | $20.03 | −$2.00M | −8.2%1.12M after | 3 lots10b5-1 |
| May 15, 2026 (view filing) | May 14 | 1 day | Edmondson Frazor Titus IIIChief Legal Officer | SSaleAmerican Depositary Shares | −3.52K | $20.19 | −$71.0K | −15.1%19.8K after | 10b5-1 |
| May 19, 2026 (view filing) | May 15-18 | 4 days | Du YingChairperson & CEO | SSaleAmerican Depositary Shares | −100.0K | $19.87 | −$1.99M | −8.2%1.12M after | 2 lots10b5-1 |
| Jun 24, 2026 (view filing) | Jun 22 | 2 days | Lis WilliamDirector | SSaleAmerican Depositary Shares | −7.04K | $18.09 | −$127.4K | −12.2%50.4K after | 10b5-1 |
| Jun 29, 2026 (view filing) | Jun 26 | 3 days | Chen YajingChief Financial Officer | SSaleAmerican Depositary Shares | −2.26K | $17.46 | −$39.5K | −6.0%35.7K after | |
| Jun 29, 2026 (view filing) | Jun 26 | 3 days | Du YingChairperson & CEO | SSaleAmerican Depositary Shares | −24.5K | $17.46 | −$428.5K | −2.0%1.19M after | |
| Jun 29, 2026 (view filing) | Jun 26 | 3 days | Edmondson Frazor Titus IIIChief Legal Officer | SSaleAmerican Depositary Shares | −4.10K | $17.46 | −$71.6K | −11.9%30.3K after | |
| Jul 1, 2026 (view filing)4:24 PM ET | Jun 30 | 1 day | Du YingChairperson & CEO | SSaleAmerican Depositary Shares | −7.03K | $18.53 | −$130.2K | −0.6%1.20M after | |
| Jul 6, 2026 (view filing)4:14 PM ET | Jul 1 | 5 days | Gaynor RichardDirector | PPurchaseAmerican Depositary Shares | +1.74K | $19.05 | +$33.1K | +2.2%80.7K after | 10b5-1 |
| Aug 13, 2026 (view filing)4:15 PM ET | Aug 11 | 2 days | Chen YajingChief Financial Officer | SSaleAmerican Depositary Shares | −619 | $25.00 | −$15.5K | −1.7%35.1K after | 10b5-1 |
| Aug 13, 2026 (view filing)4:15 PM ET | Aug 12 | 1 day | Lis WilliamDirector | SSaleAmerican Depositary Shares | −8.51K | $25.00 | −$212.7K | −16.9%41.9K after | 10b5-1 |
| Aug 21, 2026 (view filing)4:16 PM ET | Aug 19 | 2 days | Chen YajingChief Financial Officer | SSaleAmerican Depositary Shares | −260 | $27.00 | −$7.02K | −0.7%35.6K after | 10b5-1 |