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ZLAB · NASDAQ · Pharmaceutical Preparations
Zai Lab (ZLAB) · oqro.io/stocks/ZLAB · printed today. Every figure comes from a public filing, linked on the page online. Not investment advice.
$24.60−1.44 (−5.53%)
Close of Nov 13, 2026, vs Nov 12 · end-of-day, not a live quote
Including 3 routine filings (option exercises, tax withholding, grants, gifts). Open-market trades only
Insider buying
First insider buy since Sep 2025Traded Nov 10 · filed 3 days later
Since the trade −6.9% · S&P 500 +0.6% · to Nov 13
A Zai Lab director paid $33K out of pocket for Zai Lab shares. It was the first purchase in over a year.
Traded Oct 1, 2026 · largest single transaction 920
Oct 1, 2026920
DetailsOfficial recordOct 1, 2026920
Insider filing
Traded Oct 1 · filed 5 days later
Routine share withholding; mechanical by default.
Insider buying
First insider buy since May 2024Traded Sep 10, 2025 · filed 2 days later
Zai Lab's See Remarks paid $289K out of pocket for Zai Lab shares. Shares held went up 13% with this purchase.
Joshua L Smiley (See Remarks) sold ~$241K of Zai Lab
Automatic saleFrazor Titus Iii Edmondson (Chief Legal Officer) sold ~$68K of Zai Lab
Automatic saleYajing Chen (Chief Financial Officer) sold ~$29K of Zai Lab
Planned saleYajing Chen (Chief Financial Officer) sold ~$22K of Zai Lab
Automatic saleYing Du (Chairperson & CEO) sold ~$1.71M of Zai Lab
Planned saleYing Du (Chairperson & CEO) sold ~$1.65M of Zai Lab
Planned saleYing Du (Chairperson & CEO) sold ~$1.74M of Zai Lab
Planned saleYing Du (Chairperson & CEO) sold ~$1.73M of Zai Lab
Planned saleYajing Chen (Chief Financial Officer) sold ~$139K of Zai Lab
Planned saleRafael Amado (See Remarks) sold ~$105K of Zai Lab
Planned saleYing Du (Chairperson & CEO) sold ~$249K of Zai Lab
Automatic saleYing Du (Chairperson & CEO) sold ~$246K of Zai Lab
Automatic saleYing Du (Chairperson & CEO) sold ~$855K of Zai Lab
Automatic saleYajing Chen (Chief Financial Officer) sold ~$97K of Zai Lab
Automatic saleFrazor Titus Iii Edmondson (Chief Legal Officer) sold ~$212K of Zai Lab
Automatic saleWilliam Lis (Director) sold ~$493K of Zai Lab
Planned saleYajing Chen (Chief Financial Officer) sold ~$289K of Zai Lab
Planned saleYing Du (Chairperson & CEO) sold ~$1.36M of Zai Lab
Planned saleYing Du (Chairperson & CEO) sold ~$1.29M of Zai Lab
Planned saleYing Du (Chairperson & CEO) sold ~$64K of Zai Lab
Planned saleYing Du (Chairperson & CEO) sold ~$11K of Zai Lab
Planned saleInsider selling
Traded May 9, 2025 · filed 4 days laterNot reported under a pre-arranged trading plan
A Zai Lab director sold $715K of Zai Lab shares. The filing does not indicate a pre-arranged trading plan.
Ying Du (Chairperson & CEO) sold ~$1.45M of Zai Lab
Planned saleYing Du (Chairperson & CEO) sold ~$1.37M of Zai Lab
Planned saleYing Du (Chairperson & CEO) sold ~$110K of Zai Lab
Planned saleYing Du (Chairperson & CEO) sold ~$18K of Zai Lab
Planned saleYing Du (Chairperson & CEO) sold ~$98K of Zai Lab
Automatic saleJoshua L Smiley (See Remarks) sold ~$111K of Zai Lab
Automatic saleRafael Amado (See Remarks) sold ~$100K of Zai Lab
Automatic saleYajing Chen (Chief Financial Officer) sold ~$31K of Zai Lab
Automatic saleFrazor Titus Iii Edmondson (Chief Legal Officer) sold ~$62K of Zai Lab
Automatic saleYing Du (Chairperson & CEO) sold ~$208K of Zai Lab
Automatic saleYajing Chen (Chief Financial Officer) sold ~$190K of Zai Lab
Automatic saleJoshua L Smiley (See Remarks) sold ~$421K of Zai Lab
Automatic saleRafael Amado (See Remarks) sold ~$271K of Zai Lab
Automatic sale1 open-market purchase and 0 open-market sales by insiders of ZLAB between Jan 27, 2026 and today, placed against the company's last 4 earnings releases. The latest on file was filed Nov 5, 2026.
PurchaseSale30 days before a release30 days after
| Earnings release | 30 days before | On the day | 30 days after |
|---|---|---|---|
| Nov 5, 2026 | None | None | 1 purchase |
| Aug 6, 2026 | None | None | None |
| May 7, 2026 | None | None | None |
| Feb 26, 2026 | None | None | None |
Companies set trading windows, which usually close shortly before results and reopen after them, and insiders may trade under 10b5-1 plans adopted months earlier. A date alone does not show what a person knew or why they traded. Past release dates are the dates the company filed its 8-K with Item 2.02. An upcoming date, when one is mentioned, comes from the data provider's earnings calendar (Finnhub): it is not a company filing, it is not estimated by OQRO, and it may change. Open-market purchases and sales as reported on Form 4. Largest purchases around earnings, all companies
