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Ying Du is Chairperson & CEO at Zai Lab. OQRO lists 28 transactions filed with the SEC under this name, the latest on Aug 14, 2025, each linked to the official Form 4.
Chairperson & CEO
Disclosures on record
28
Companies involved
1
Zai LabZLAB
28 disclosures · Mar 2025 – Aug 2025 · 28 sold
Aug 12, 2025Sold~$1.71Mdisclosed Aug 14
DetailsOfficial recordAug 13, 2025Sold~$1.65Mdisclosed Aug 14
DetailsAug 8, 2025Sold~$1.74Mdisclosed Aug 12
DetailsOfficial recordAug 11, 2025Sold~$1.73Mdisclosed Aug 12
DetailsOfficial recordJul 2, 2025Sold~$249Kdisclosed Jul 3
DetailsOfficial recordJun 30, 2025Sold~$246Kdisclosed Jul 1
DetailsOfficial recordJun 26, 2025Sold~$855Kdisclosed Jun 27
DetailsOfficial recordMay 13, 2025Sold~$1.36Mdisclosed May 15
DetailsOfficial recordMay 14, 2025Sold~$1.29Mdisclosed May 15
DetailsOfficial recordMay 13, 2025Sold~$64Kdisclosed May 15
DetailsOfficial recordMay 14, 2025Sold~$11Kdisclosed May 15
DetailsOfficial recordMay 12, 2025Sold~$1.45Mdisclosed May 13
DetailsOfficial recordMay 9, 2025Sold~$1.37Mdisclosed May 13
DetailsOfficial recordMay 9, 2025Sold~$110Kdisclosed May 13
DetailsOfficial recordMay 12, 2025Sold~$18Kdisclosed May 13
DetailsOfficial recordApr 4, 2025Sold~$98Kdisclosed Apr 7
DetailsOfficial recordApr 2, 2025Sold~$208Kdisclosed Apr 3
DetailsOfficial recordMar 4, 2025Sold~$1.27Mdisclosed Mar 6
DetailsOfficial recordMar 5, 2025Sold~$907Kdisclosed Mar 6
DetailsOfficial recordMar 5, 2025Sold~$742Kdisclosed Mar 6
DetailsOfficial recordMar 4, 2025Sold~$218Kdisclosed Mar 6
DetailsOfficial recordMar 4, 2025Sold~$190Kdisclosed Mar 6
DetailsOfficial recordFeb 28, 2025Sold~$1.62Mdisclosed Mar 4
DetailsOfficial recordMar 3, 2025Sold~$801Kdisclosed Mar 4
DetailsOfficial recordMar 3, 2025Sold~$734Kdisclosed Mar 4
DetailsOfficial recordFeb 28, 2025Sold~$96Kdisclosed Mar 4
DetailsOfficial recordMar 3, 2025Sold~$87Kdisclosed Mar 4
DetailsOfficial recordFeb 28, 2025Sold~$7Kdisclosed Mar 4
DetailsOfficial recordAs of the latest filing on , Ying Du reported holding 536,962 shares of Zai Lab (ZLAB), worth about $13.2M at the last close of $25 (Nov 13, 2026).
| Company | Shares reported | How held | Last close | Value at last close | Reported |
|---|---|---|---|---|---|
| Zai Lab ZLAB | 536,962 | 537K direct | $25 | $13.2M | Aug 13, 2025 |
Is this Ying Du’s net worth? No. A Form 4 reports the shares an insider owns in one company after each transaction, directly or through trusts and entities. It says nothing about cash, other investments, property or debt, options not yet exercised are not counted here, and a holding reported some time ago may have changed without a new filing. The value is shares times the last stored close, not a price anyone received. Sources: the filings listed below, each linked to EDGAR. Compare with the biggest insider stakes.
Ying Du has no open-market purchase on record since 2021. Sales in 3 of the 6 years since 2021.
Ying Du reported 0 open-market purchases and 141 sales since 2021; no open-market purchase.
| Year | Bought | Sold |
|---|---|---|
| 2025 | — | $20.8M28×28 trades |
| 2024 | — | $863K5×5 trades |
| 2021 | — | $104M108×108 trades |
Open-market purchases (code P) and sales (code S) on Forms 4 and 5. Up to Sep 2024 from the SEC's Insider Transactions Data Sets; since Oct 2024 from each filing as it is published. A trade filed twice (an amendment) counts once. Dollar totals use the price the filer reported; lines with no price count as trades without a value.
On the latest SEC Form 4, dated Aug 13, 2025, Ying Du reported holding 536,962 shares of Zai Lab (ZLAB). At the last close of $25 on Nov 13, 2026, that is about $13.2M. This is the stake disclosed in filings, not a net worth.
Ying Du has no open-market purchase on record since 2021. Sales in 3 of the 6 years since 2021.
In SEC filings since 2021: no open-market purchase is on record; the latest open-market sale is from 2025.
Zai Lab (ZLAB), from 2021 to 2025: 0 purchases and 141 sales.
Ying Du reported 0 open-market purchases and 141 sales here, 2021 to 2025.
Closing prices and the companies' last annual figures; a − or + is a fact of the close, not a forecast.
