See up to 3 months of ZLAB. The 7-day demo opens the 1M and 3M ranges and puts ZLAB on your watchlist.
Start 7-day demoLatest ZLAB insider trades
About Zai Lab Ltd (ZLAB)
Zai Lab Ltd is an SEC registrant, filing under CIK 0001704292, classified as pharmaceutical preparations. We track it alongside the rest of the Health Care sector.
ZLAB Form 4 activity by transaction type, last 90 days
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 3 | 9,385 | $235K |
| Option exercise | 4 | 4,340 | |
| Tax withholding / forfeiture | 2 | 742 |
Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.
ZLAB insider transactions (Form 4)
6470 Form 4 filings on record, the earliest from Oct 3, 2024, newest first. Filing history page 1 of 3.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Yajing Chen - Officer | Option exercise | American Depositary Shares | 920 footnote F2 | - footnote F3 | - | |
| Yajing Chen - Officer | Tax withholding / forfeiture | American Depositary Shares | 315 footnote F4 | $25.50 | $8K | |
| Yajing Chen - Officer | Option exercise | Restricted Share Units | 920 | $0.00 | - | |
| ||||||
| Yajing Chen - Officer | Open-market sale | American Depositary Shares | 260 | $27.00 | $7K | |
| Yajing Chen - Officer | Option exercise | American Depositary Shares | 1,250 footnote F2 | - footnote F3 | - | |
| Yajing Chen - Officer | Tax withholding / forfeiture | American Depositary Shares | 427 footnote F4 | $25.90 | $11K | |
| Yajing Chen - Officer | Option exercise | Restricted Share Units | 1,250 | $0.00 | - | |
| ||||||
| William Lis - Director | Open-market sale | American Depositary Shares | 8,506 | $25.00 | $213K | |
| Yajing Chen - Officer | Open-market sale | American Depositary Shares | 619 | $25.00 | $15K | |
 Richard Gaynor | Open-market purchase | American Depositary Shares | 1,736 | $19.05 | $33K | |
| Ying Du - Officer | Option exercise | American Depositary Shares | 18,000 footnote F2 | - footnote F3 | - | |
| Ying Du - Officer | Tax withholding / forfeiture | American Depositary Shares | 7,083 footnote F4 | $19.15 | $136K | |
| Ying Du - Officer | Option exercise | American Depositary Shares | 11,048 footnote F2 | - footnote F3 | - | |
| Ying Du - Officer | Tax withholding / forfeiture | American Depositary Shares | 4,348 footnote F4 | $19.12 | $83K | |
| Ying Du - Officer | Option exercise | Restricted Share Units | 18,000 | $0.00 | - | |
| Ying Du - Officer | Option exercise | Restricted Share Units | 11,048 | $0.00 | - | |
| Ying Du - Officer | Grant or award | Restricted Share Units | 80,393 | $0.00 | - | |
| ||||||
| Ying Du - Officer | Option exercise | American Depositary Shares | 17,970 footnote F2 | - footnote F3 | - | |
| Ying Du - Officer | Open-market sale | American Depositary Shares | 7,026 footnote F4 | $18.53 | $130K | |
| Ying Du - Officer | Option exercise | Restricted Share Units | 17,970 | $0.00 | - | |
| ||||||
| Frazor Titus Edmondson III - Officer | Option exercise | Restricted Share Units | 14,600 | $0.00 | - | |
| Frazor Titus Edmondson III - Officer | Option exercise | American Depositary Shares | 14,600 footnote F2 | - footnote F3 | - | |
| Frazor Titus Edmondson III - Officer | Open-market sale | American Depositary Shares | 4,103 footnote F4 | $17.46 | $72K | |
| ||||||
| Ying Du - Officer | Option exercise | Restricted Share Units | 58,800 | $0.00 | - | |
| Ying Du - Officer | Option exercise | American Depositary Shares | 58,800 footnote F2 | - footnote F3 | - | |
| Ying Du - Officer | Open-market sale | American Depositary Shares | 24,543 footnote F4 | $17.46 | $429K | |
| ||||||
| Yajing Chen - Officer | Option exercise | Restricted Share Units | 6,250 | $0.00 | - | |
| Yajing Chen - Officer | Option exercise | American Depositary Shares | 6,250 footnote F2 | - footnote F3 | - | |
| Yajing Chen - Officer | Open-market sale | American Depositary Shares | 2,264 footnote F4 | $17.46 | $40K | |
| ||||||
| William Lis | Open-market sale | American Depositary Shares | 7,040 | $18.09 | $127K | |
| Richard Gaynor | Grant or award | American Depositary Shares | 22,371 footnote F2 | $0.00 | - | |
| ||||||
| Scott W. Morrison | Grant or award | American Depositary Shares | 22,371 footnote F2 | $0.00 | - | |
| ||||||
| Michel Vounatsos | Grant or award | American Depositary Shares | 22,371 footnote F2 | $0.00 | - | |
| ||||||
| William Lis | Grant or award | American Depositary Shares | 22,371 footnote F2 | $0.00 | - | |
| ||||||
| John D. Diekman | Grant or award | American Depositary Shares | 22,371 footnote F2 | $0.00 | - | |
| ||||||
| Peter Wirth | Grant or award | American Depositary Shares | 22,371 footnote F2 | $0.00 | - | |
| ||||||
| Leon O. Moulder Jr. | Grant or award | American Depositary Shares | 22,371 footnote F2 | $0.00 | - | |
| ||||||
| Nisa Leung | Grant or award | American Depositary Shares | 22,371 footnote F2 | $0.00 | - | |
| ||||||
| Yizhe Wang - Officer | Grant or award | Stock Option (Right to Buy) | 136,819 | $0.00 | - | |
| Yizhe Wang - Officer | Grant or award | Restricted Share Units | 59,288 | $0.00 | - | |
| Ying Du - Officer | Gift | American Depositary Shares | 19,857 | $0.00 | - | |
| Ying Du - Officer | Gift | American Depositary Shares | 33,993 | $0.00 | - | |
| Ying Du - Officer | Gift | American Depositary Shares | 53,850 | $0.00 | - | |
| Ying Du - Officer | Option exercise | American Depositary Shares | 261,092 | $1.74 | $454K | |
| Ying Du - Officer | Tax withholding / forfeiture | American Depositary Shares | 117,435 | $18.75 | $2.20M | |
| Ying Du - Officer | Option exercise | Stock Options (Right to Buy) | 261,092 | $0.00 | - | |
| Ying Du - Officer | Option exercise | American Depositary Shares | 50,000 | $1.74 | $87K | |
| Ying Du - Officer | Open-market sale | American Depositary Shares | 50,000 | $20.74 footnote F3 | $1.04M | |
| Ying Du - Officer | Option exercise | American Depositary Shares | 50,000 | $1.74 | $87K | |
| Ying Du - Officer | Open-market sale | American Depositary Shares | 50,000 | $19.00 footnote F4 | $950K | |
| Ying Du - Officer | Option exercise | Stock Options (Right to Buy) | 50,000 | $0.00 | - | |
| Ying Du - Officer | Option exercise | Stock Options (Right to Buy) | 50,000 | $0.00 | - | |
| ||||||
| Frazor Titus Edmondson III - Officer | Open-market sale | American Depositary Shares | 3,517 | $20.19 | $71K | |
| Ying Du - Officer | Option exercise | American Depositary Shares | 50,000 | $1.74 | $87K | |
| Ying Du - Officer | Open-market sale | American Depositary Shares | 16,231 | $19.44 footnote F3 | $316K | |
| Ying Du - Officer | Open-market sale | American Depositary Shares | 33,769 | $20.22 footnote F4 | $683K | |
| Ying Du - Officer | Option exercise | American Depositary Shares | 50,000 | $1.74 | $87K | |
| Ying Du - Officer | Open-market sale | American Depositary Shares | 50,000 | $20.09 footnote F5 | $1.00M | |
| Ying Du - Officer | Option exercise | Stock Options (Right to Buy) | 50,000 | $0.00 | - | |
| Ying Du - Officer | Option exercise | Stock Options (Right to Buy) | 50,000 | $0.00 | - | |
| ||||||
| Joshua L. Smiley - Officer | Open-market sale | American Depositary Shares | 3,017 footnote F2 | $20.45 | $62K | |
| ||||||
| Frazor Titus Edmondson III - Officer | Open-market sale | American Depositary Shares | 1,224 footnote F2 | $20.45 | $25K | |
| ||||||
| Ying Du - Officer | Open-market sale | American Depositary Shares | 2,653 footnote F2 | $20.45 | $54K | |
| ||||||
| Yajing Chen - Officer | Open-market sale | American Depositary Shares | 853 footnote F2 | $20.45 | $17K | |
| ||||||
Item 2.02, 9.01
Item 5.07
Item 5.02
Item 2.02, 9.01
Recent ZLAB Form 144 notices of proposed sale
3An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| Smiley Joshua L | Former Officer | 98,653 | $2.58M | View on EDGAR | |
| Chen Yajing | Officer | 260 | $7K |
ZLAB insider trading FAQ
What is the latest insider trade for ZLAB?
Zai Lab Ltd (ZLAB) had 5 insider filings in the last 90 days, with the most recent on 2026-10-05. The full record for ZLAB runs to 70 Form 4 filings, the earliest from 2024-10-03. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying ZLAB stock?
No insider purchases of ZLAB were filed in the last 90 days. 3 purchases are on record for this company.
How many insiders are selling ZLAB stock?
3 insider sales of ZLAB were filed in the last 90 days, totaling $235K.
Where can I see ZLAB SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects ZLAB Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Health Care companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Yajing Chen view on EDGAR
- - Yajing Chen view on EDGAR
- - Yajing Chen view on EDGAR
- - William Lis view on EDGAR
- - Yajing Chen view on EDGAR
- - Richard Gaynor view on EDGAR
- - Ying Du view on EDGAR
- - Ying Du view on EDGAR
- - Frazor Titus Edmondson III view on EDGAR
Related companies with recent insider activity
Learn more
- Insider selling: signal or noise?
- Why most insider sales are routine, and the few patterns worth a second look.
- Form 144 vs Form 4
- A Form 144 announces a planned sale; the Form 4 reports it after it happens.
- Insider activity in Health Care
- Where ZLAB's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
Follow ZLAB with a 7-day demo
- ZLAB on your watchlist
- Every ZLAB Form 4 filing on record
- Up to 3 months of ZLAB price history
- The daily trading plan of ranked insider buys, on a delay, with the plan archive
Start 7-day demoCard required. Your card is never charged for the demo.
