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Zai Lab Ltd (ZLAB) Stock Price, Key Stats & Insider Trading
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Zai Lab Ltd (ZLAB) XNAS PHARMACEUTICAL PREPARATIONS Net insider selling (90d)
Latest ZLAB Insider Trades Zai Lab Ltd is a biopharmaceutical company focusing on discovering or licensing, developing, and commercializing proprietary therapeutics that address areas of unmet medical need including in the fields of oncology, autoimmune and infectious diseases. Zai Lab has a diverse pipeline of potentially first-in-class product candidates developed through in-house R&D and global partnerships. The company has successfully commercialized several products in China, including Zejula, Optune, Qinlock, and Nuzyra, with plans for further expansion The pipeline of proprietary drug candidates of the company includes ZL-1222, ZL-1311, ZL-6201 and many others.
Headquarters SHANGHAI
Employees 1,797
Listed 2017
Exchange XNAS https://www.zailaboratory.com SEC filings for ZLAB on EDGAR
90-Day SEC Filing Activity Form 4 transaction type Transactions Shares Total value Open-market purchase 1 1,736 $33K Open-market sale 8 54,361 $1.03M Grant or award 11 455,468
ZLAB Insider Transactions (Form 4) 121 69 Form 4 filings on record, the earliest from Oct 3, 2024, newest first. Filing history page 2 of 3.
Date Insider Transaction Security Shares Price Value Apr 1, 2026 JS Joshua L. Smiley - Officer Option exercise American Depositary Shares 32,062
Recent ZLAB Form 8-K Filings 5
Recent ZLAB Form 144 Notices of Proposed Sale 3 A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
Filed Filer Relationship Shares Market value Notice Aug 20, 2026 Smiley Joshua L Former Officer 98,653 $2.58M View on EDGAR Aug 19, 2026 Chen Yajing Officer
ZLAB Insider Trading - FAQ
What is the latest insider trade for ZLAB? Zai Lab Ltd (ZLAB) had 20 insider filings in the last 90 days, with the most recent on 2026-08-21. The full record for ZLAB runs to 69 Form 4 filings, the earliest from 2024-10-03. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
How many insiders are buying ZLAB stock? 1 insider purchase of ZLAB was filed in the last 90 days, totaling $33K.
How many insiders are selling ZLAB stock? 8 insider sales of ZLAB were filed in the last 90 days, totaling $1.03M.
Where can I see ZLAB SEC filings (Form 4, 10-K, 10-Q, 8-K)? This page tracks ZLAB Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
How can I follow ZLAB insider buys? Create a free InsiderAlpha account and press Watch on this page to add ZLAB to your watchlist. A free account also opens the full scored daily plan with every past day and 3 months of price history. No card is required. Sign up at https://insideralpha.ai/register.
More Health Care Companies with Insider Activity Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
Related Companies - Recent Insider Activity What is SEC Form 4? The filing insiders must submit within two business days of a trade, and how to read its transaction codes. Track ZLAB insider activity as it files Real-time Form 4 alerts, AI-scored daily trade ideas and 10b5-1 plan flags.
Sign up free YC Yajing Chen - Officer Open-market sale $15K
Aug 11, 2026
YD Ying Du - Officer Open-market sale $130K
Jun 30, 2026
YD Ying Du - Officer Open-market sale $429K
Jun 26, 2026
YC Yajing Chen - Officer Open-market sale $40K
Jun 26, 2026
Market cap $2.93B
P/E ratio -
Dividend yield -
Average volume 1.01M
52 week high $34.72
52 week low $15.96
Today's high $26.45
Today's low $25.87
Open $26.45
Volume 650.0K
Previous close $26.82
Shares outstanding 112.27M Market cap
$2.93B
1,797 employees
ZLAB Insider Sentiment - Last 90 Days Share of open-market insider dollar volume that was buying versus selling, from SEC Form 4 filings.
3% Buying 97% Selling
1 insider purchase totaling $33K against 8 sales totaling $1.03M.
Most-Active ZLAB Insiders - Last 90 Days 10 Tax withholding / forfeiture 3 11,858
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
Apr 2, 2026 JS Joshua L. Smiley - Officer Option exercise American Depositary Shares 7,145 - -
Apr 2, 2026 JS Joshua L. Smiley - Officer Open-market sale American Depositary Shares 9,614 $20.39 $196K
Mar 4, 2026 JS Joshua L. Smiley - Officer Grant or award Performance-Based Share Units 17,887 $0.00 -
Apr 1, 2026 JS Joshua L. Smiley - Officer Option exercise Restricted Share Units 32,062 $0.00 -
Apr 2, 2026 JS Joshua L. Smiley - Officer Option exercise Restricted Share Units 7,145 $0.00 -
Apr 2, 2026 YD Ying Du - Officer Open-market sale American Depositary Shares 5,576 $20.39 $114K
Apr 1, 2026 YD Ying Du - Officer Option exercise American Depositary Shares 10,800 - -
Apr 1, 2026 YD Ying Du - Officer Option exercise American Depositary Shares 3,400 - -
Apr 2, 2026 YD Ying Du - Officer Option exercise American Depositary Shares 6,750 - -
Mar 4, 2026 YD Ying Du - Officer Grant or award Performance-Based Share Units 25,579 $0.00 -
Apr 1, 2026 YD Ying Du - Officer Option exercise Restricted Share Units 10,800 $0.00 -
Apr 1, 2026 YD Ying Du - Officer Option exercise Restricted Share Units 3,400 $0.00 -
Apr 2, 2026 YD Ying Du - Officer Option exercise Restricted Share Units 6,750 $0.00 -
Apr 1, 2026 YC Yajing Chen - Officer Option exercise American Depositary Shares 13,758 - -
Apr 2, 2026 YC Yajing Chen - Officer Option exercise American Depositary Shares 2,500 - -
Apr 2, 2026 YC Yajing Chen - Officer Open-market sale American Depositary Shares 5,199 $20.39 $106K
Mar 4, 2026 YC Yajing Chen - Officer Grant or award Performance-Based Share Units 11,924 $0.00 -
Apr 1, 2026 YC Yajing Chen - Officer Option exercise American Depositary Shares 1,500 - -
Apr 1, 2026 YC Yajing Chen - Officer Option exercise Restricted Share Units 1,500 $0.00 -
Apr 1, 2026 YC Yajing Chen - Officer Option exercise Restricted Share Units 13,758 $0.00 -
Apr 2, 2026 YC Yajing Chen - Officer Option exercise Restricted Share Units 2,500 $0.00 -
Apr 1, 2026 RA Rafael Amado - Officer Option exercise American Depositary Shares 19,523 - -
Apr 2, 2026 RA Rafael Amado - Officer Option exercise American Depositary Shares 5,391 - -
Apr 2, 2026 RA Rafael Amado - Officer Open-market sale American Depositary Shares 9,910 $20.39 $202K
Mar 4, 2026 RA Rafael Amado - Officer Grant or award Performance-Based Share Units 14,905 $0.00 -
Apr 1, 2026 RA Rafael Amado - Officer Option exercise Restricted Share Units 19,523 $0.00 -
Apr 2, 2026 RA Rafael Amado - Officer Option exercise Restricted Share Units 5,391 $0.00 -
Mar 17, 2026 RG Richard Gaynor Open-market purchase American Depositary Shares 1,731 $18.91 $33K
Mar 12, 2026 JS Joshua L. Smiley - Officer Option exercise American Depositary Shares 6,388 - -
Mar 13, 2026 JS Joshua L. Smiley - Officer Open-market sale American Depositary Shares 1,966 $18.63 $37K
Mar 4, 2026 JS Joshua L. Smiley - Officer Grant or award Stock Options (Right to Buy) 103,950 $0.00 -
Mar 4, 2026 JS Joshua L. Smiley - Officer Grant or award Restricted Share Units 33,783 $0.00 -
Mar 12, 2026 JS Joshua L. Smiley - Officer Option exercise Restricted Share Units 6,388 $0.00 -
Mar 12, 2026 YC Yajing Chen - Officer Option exercise American Depositary Shares 4,258 - -
Mar 13, 2026 YC Yajing Chen - Officer Open-market sale American Depositary Shares 1,703 $18.63 $32K
Mar 4, 2026 YC Yajing Chen - Officer Grant or award Stock Options (Right to Buy) 83,160 $0.00 -
Mar 4, 2026 YC Yajing Chen - Officer Grant or award Restricted Share Units 27,027 $0.00 -
Mar 12, 2026 YC Yajing Chen - Officer Option exercise Restricted Share Units 4,258 $0.00 -
Mar 12, 2026 RA Rafael Amado - Officer Option exercise American Depositary Shares 5,323 - -
Mar 13, 2026 RA Rafael Amado - Officer Open-market sale American Depositary Shares 2,957 $18.63 $55K
Mar 4, 2026 RA Rafael Amado - Officer Grant or award Stock Options (Right to Buy) 103,950 $0.00 -
Mar 4, 2026 RA Rafael Amado - Officer Grant or award Restricted Share Units 33,783 $0.00 -
Mar 12, 2026 RA Rafael Amado - Officer Option exercise Restricted Share Units 5,323 $0.00 -
Mar 11, 2026 YD Ying Du - Officer Grant or award Stock Options (Right to Buy) 353,430 $0.00 -
Mar 11, 2026 YD Ying Du - Officer Grant or award Restricted Share Units 32,419 $0.00 -
Mar 10, 2026 YD Ying Du - Officer Option exercise American Depositary Shares 2,655 - -
Mar 11, 2026 YD Ying Du - Officer Open-market sale American Depositary Shares 1,067 $19.08 $20K
Mar 10, 2026 YD Ying Du - Officer Option exercise Stock Options (Right to Buy) 261,092 $0.00 -
Mar 10, 2026 YD Ying Du - Officer Option exercise Restricted Share Units 2,655 $0.00 -
Mar 10, 2026 YD Ying Du - Officer Option exercise American Depositary Shares 261,092 $1.74 $454K
Mar 10, 2026 YD Ying Du - Officer Tax withholding / forfeiture American Depositary Shares 116,936 $19.41 $2.27M
Mar 6, 2026 YD Ying Du - Officer Open-market sale American Depositary Shares 50,000 $19.42 $971K
Mar 9, 2026 YD Ying Du - Officer Open-market sale American Depositary Shares 50,000 $19.03 $951K
Mar 6, 2026 YD Ying Du - Officer Option exercise Stock Options (Right to Buy) 50,000 $0.00 -
Mar 9, 2026 YD Ying Du - Officer Option exercise Stock Options (Right to Buy) 50,000 $0.00 -
Mar 6, 2026 YD Ying Du - Officer Option exercise American Depositary Shares 50,000 $1.74 $87K
Mar 9, 2026 YD Ying Du - Officer Option exercise American Depositary Shares 50,000 $1.74 $87K
Mar 5, 2026 YD Ying Du - Officer Option exercise American Depositary Shares 50,000 $1.74 $87K
Mar 5, 2026 YD Ying Du - Officer Open-market sale American Depositary Shares 50,000 $19.22 $961K
Mar 4, 2026 YD Ying Du - Officer Option exercise Stock Options (Right to Buy) 50,000 $0.00 -
Mar 5, 2026 YD Ying Du - Officer Option exercise Stock Options (Right to Buy) 50,000 $0.00 -
Mar 4, 2026 YD Ying Du - Officer Option exercise American Depositary Shares 50,000 $1.74 $87K
Mar 4, 2026 YD Ying Du - Officer Open-market sale American Depositary Shares 14,290 $18.78 $268K
Mar 4, 2026 YD Ying Du - Officer Open-market sale American Depositary Shares 35,710 $19.32 $690K
Mar 3, 2026 RA Rafael Amado - Officer Open-market sale American Depositary Shares 10,000 $17.38 $174K
Dec 30, 2025 RA Rafael Amado - Officer Option exercise American Depositary Shares 21,000 - -
Dec 31, 2025 RA Rafael Amado - Officer Open-market sale American Depositary Shares 10,787 $17.43 $188K
Dec 30, 2025 RA Rafael Amado - Officer Option exercise Restricted Share Units 21,000 $0.00 -
Nov 3, 2025 YC Yajing Chen - Officer Open-market sale American Depositary Shares 240 $26.83 $6K
Oct 31, 2025 YC Yajing Chen - Officer Option exercise Restricted Share Units 500 $0.00 -
Oct 31, 2025 YC Yajing Chen - Officer Option exercise American Depositary Shares 500 - -
Oct 1, 2025 YC Yajing Chen - Officer Option exercise American Depositary Shares 920 - -
Oct 2, 2025 YC Yajing Chen - Officer Open-market sale American Depositary Shares 456 $34.25 $16K
Oct 1, 2025 YC Yajing Chen - Officer Option exercise Restricted Share Units 920 $0.00 -
Sep 10, 2025 JS Joshua L. Smiley - Officer Open-market purchase American Depositary Shares 10,000 $28.91 $289K
Aug 29, 2025 YD Ying Du - Officer Option exercise American Depositary Shares 604,376 $1.20 $725K
Aug 29, 2025 YD Ying Du - Officer Tax withholding / forfeiture American Depositary Shares 251,319 $32.59 $8.19M
Aug 29, 2025 YD Ying Du - Officer Option exercise Stock Options (Right to Buy) 604,376 $0.00 -
Aug 15, 2025 JS Joshua L. Smiley - Officer Option exercise American Depositary Shares 15,900 - -
Aug 18, 2025 JS Joshua L. Smiley - Officer Open-market sale American Depositary Shares 6,641 $36.24 $241K
Aug 15, 2025 JS Joshua L. Smiley - Officer Option exercise Restricted Share Units 15,900 $0.00 -
Aug 14, 2025 YC Yajing Chen - Officer Option exercise American Depositary Shares 1,250 - -
Aug 15, 2025 YC Yajing Chen - Officer Open-market sale American Depositary Shares 610 $35.27 $22K
Aug 15, 2025 YC Yajing Chen - Officer Open-market sale American Depositary Shares 828 $35.53 $29K
Aug 14, 2025 YC Yajing Chen - Officer Option exercise Restricted Share Units 1,250 $0.00 -
Aug 12, 2025 YD Ying Du - Officer Option exercise American Depositary Shares 50,000 $0.60 $30K
Aug 12, 2025 YD Ying Du - Officer Open-market sale American Depositary Shares 50,000 $34.25 $1.71M
Aug 13, 2025 YD Ying Du - Officer Option exercise American Depositary Shares 46,387 $0.60 $28K
Aug 13, 2025 YD Ying Du - Officer Open-market sale American Depositary Shares 46,387 $35.47 $1.65M
Aug 12, 2025 YD Ying Du - Officer Option exercise Stock Options (Right to Buy) 50,000 $0.00 -
Aug 13, 2025 YD Ying Du - Officer Option exercise Stock Options (Right to Buy) 46,387 $0.00 -
Aug 8, 2025 YD Ying Du - Officer Option exercise American Depositary Shares 50,000 $0.60 $30K
Aug 8, 2025 YD Ying Du - Officer Open-market sale American Depositary Shares 50,000 $34.74 $1.74M
Aug 11, 2025 YD Ying Du - Officer Option exercise American Depositary Shares 50,000 $0.60 $30K
Aug 11, 2025 YD Ying Du - Officer Open-market sale American Depositary Shares 50,000 $34.64 $1.73M
Aug 8, 2025 YD Ying Du - Officer Option exercise Stock Options (Right to Buy) 50,000 $0.00 -
Aug 11, 2025 YD Ying Du - Officer Option exercise Stock Options (Right to Buy) 50,000 $0.00 -
Aug 8, 2025 RA Rafael Amado - Officer Open-market sale American Depositary Shares 3,000 $35.00 $105K
Aug 8, 2025 YC Yajing Chen - Officer Open-market sale American Depositary Shares 4,096 $34.01 $139K
$ZYXI
ZYNEX INC
$IONS
IONIS PHARMACEUTICALS INC
