Zai Lab Limited published its monthly return for 31 January 2026, indicating that total authorized share capital remains unchanged at 5,000,000,000 ordinary shares, with a par value of USD 0.000006 each and an aggregate authorized capital of USD 30,000.

The number of issued shares (excluding treasury shares) stands at 1,119,628,030, showing no change during the period. The public float requirement is confirmed to be adequate.

Under equity incentive plans, a total of 7,350 shares were exercised in January 2026 pursuant to the 2015 Equity Incentive Plan, generating USD 882. These exercises were satisfied by already issued shares and did not result in any net increase in the company's total issued shares. Several share-based awards under the 2017, 2022, and 2024 Equity Incentive Plans lapsed during the month, and no new shares or treasury shares were issued or transferred.

Overall, Zai Lab Limited’s share structure and public float remained stable throughout January 2026, with no material changes to its overall share capital or treasury shares.