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ZLAB insider trading

Zai Lab Ltd — open-market insider buys and $1M+ sells from SEC Forms 3, 4 and 5.
Insider buys · 24 mo
3
Bought · 24 mo
$355k
Buys · last 90 days
1 · $33k
Most recent buy
2026-07-06

Recent insider filings

FiledInsiderTypeSharesPriceValue
2026-07-06GAYNOR RICHARD
Director
Bought1,736$19.05$33k
2026-05-19Du Ying
Chairperson & CEO
Sold50,000$20.74$1.0M
2026-05-15Du Ying
Chairperson & CEO
Sold50,000$20.09$1.0M
2026-03-19GAYNOR RICHARD
Director
Bought1,731$18.91$33k
2025-09-12Smiley Joshua L
See Remarks
Bought10,000$28.91$289k
2025-08-14Du Ying
Chairperson & CEO
Sold96,387$34.84$3.4M
2025-08-12Du Ying
Chairperson & CEO
Sold100,000$34.69$3.5M
2025-05-15Du Ying
Chairperson & CEO
Sold93,786$28.32$2.7M
2025-05-13Du Ying
Chairperson & CEO
Sold95,746$29.51$2.8M
2025-03-06Du Ying
Chairperson & CEO
Sold37,752$33.55$1.3M
2025-03-04Du Ying
Chairperson & CEO
Sold46,943$34.52$1.6M

Most active insider buyers

InsiderRoleBuysTotal bought
Smiley Joshua LSee Remarks1$289k
GAYNOR RICHARDDirector2$66k

See ZLAB on the chart

Every insider buy and sell for ZLAB plotted on the price, the full two-year history, cluster scores and daily updates — in the members area, $29/month. A free quarterly sample of the whole dataset needs no account.

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Data from the SEC EDGAR ownership filings, refreshed daily. Only open-market purchases (transaction code P) and sales of $1M or more are shown; grants, option exercises and tax withholding are excluded because they run on schedules set years earlier. Not investment advice.