X0206 3 2021-01-01 0 0001704292 Zai Lab Ltd ZLAB 0001731790 Du Ying C/O ZAI LAB LIMITED 4560 JINKE ROAD, BLDG 1, 4TH FLOOR PUDONG, SHANGHAI F4 201210 CHINA 1 1 0 0 Chairwoman & CEO Ordinary Shares 1024653 D Stock Option (Right to Buy) 0.60 2025-10-22 Ordinary Shares 1555832 D Stock Option (Right to Buy) 1.20 2026-03-09 Ordinary Shares 604376 D Stock Option (Right to Buy) 1.74 2026-08-25 Ordinary Shares 922184 D Stock Option (Right to Buy) 20.90 2028-03-28 Ordinary Shares 350000 D Stock Option (Right to Buy) 38.93 2029-03-08 Ordinary Shares 300000 D Stock Option (Right to Buy) 44.94 2030-03-12 Ordinary Shares 250000 D The option was fully vested as of 10/22/2020. The number in Column 3 represents the options that remain outstanding from the grant of 1,739,166 shares. The option vests in equal annual installments over five years beginning on 03/09/2017, the first anniversary of the date of grant. The option vests in equal annual installments over five years beginning on 08/25/2017, the first anniversary of the date of grant. The option vests in equal annual installments over five years beginning on 03/28/2019, the first anniversary of the date of grant. The option vests in equal annual installments over five years beginning on 03/08/2020, the first anniversary of the date of grant. The option vests in equal annual installments over five years beginning on 03/12/2021, the first anniversary of the date of grant. Exhibit List: Exhibit 24 - Power of Attorney By: /s/ Bruce Blefeld, Attorney-in-Fact 2021-01-01