Du Ying 4

What Happened

• Du Ying, Chairperson & CEO of Zai Lab Ltd (ZLAB), had 17,970 American Depositary Shares (ADSs) issued upon the vesting/conversion of restricted share units (RSUs) on 2026-06-29. A portion of the vested ADSs (7,026 ADSs) were sold in an open-market transaction on 2026-06-30 at $18.53 each, generating $130,220 in proceeds to cover taxes. Net shares retained after the automatic sale: 10,944 ADSs.

Key Details

• Transaction dates: 2026-06-29 (RSU vesting/conversion) and 2026-06-30 (open-market sale).
• Sale price/amount: 7,026 ADSs sold at $18.53 each for total proceeds of $130,220.
• Shares acquired: 17,970 ADSs issued on vesting (reported as conversion/exercise of derivative).
• Shares retained after withholding/sale: 10,944 ADSs (17,970 − 7,026).
• Notable footnotes: ADSs reported in ADS units (1 ADS = 10 ordinary shares). ADSs were issued upon RSU vesting (F2/F3); 7,026 ADSs were sold automatically to cover taxes (F4). RSUs vest in equal annual installments over four years beginning 06/29/2024 (F5).
• Filing timeliness: Report filed 2026-07-01 covering 2026-06-29 transactions; no late filing indicated.

Context

• This was an RSU vesting event with an automatic sale to satisfy tax withholding — a routine, non-discretionary transaction rather than a voluntary market-timed sale. The derivative entries reflect conversion/settlement of RSUs into ADSs; the post-vesting sale is effectively a cashless tax-withholding event. Such award vestings don’t by themselves indicate the insider’s market view.