Du Ying bought ZLAB
May 19, 2026 · Form 4 insider transaction
Du Ying bought 261,092 shares of Zai Lab Limited at $1.74 per share, a transaction worth $454.3K. The trade was recorded as option exercise under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 2 days after the transaction.
Direction
Acquired (buy-side)
Shares
261,092
Price
$1.74
Total value
$454.3K
InsiderDu Ying
RoleOfficer, Director
CompanyZai Lab Limited (ZLAB)
SecurityAmerican Depositary Shares
Transaction codeM: Option exercise
Transaction dateMay 19, 2026
Filing dateMay 21, 2026
Shares owned after1,383,718
OwnershipDirect
10b5-1 planYes
AmendedNo
Footnotes
Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.; The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 11, 2025.