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Zai Lab Ltd

For the period ended Mar 31, 2025. Filed May 8, 2025.

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A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Mar 31, 2025 · Filed May 8, 2025

ZLAB$26.86+5.4%Stored close · as of Nov 9, 2026

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Item 5. Other Information

Other than as described below, during the first quarter of 2025, none of the Company’s directors or executive officers (as defined in Rule 16a-1(f) under the Exchange Act) hasadopted, modified, orterminated a Rule 10b5-1 trading arrangement or a non-Rule 10b5-1 trading arrangement (each as defined in Item 408 of Regulation S-K).

On March 3, 2025, Yajing Chen, the Company’s Chief Financial Officer, adopted a new written Rule 10b5-1 trading arrangement for the sale of up to 15,494 ADSs. This Rule 10b5-1 trading arrangement is scheduled to terminate no later than March 4, 2026.

On March 4, 2025, William Lis, one of the Company’sdirectors, amended his written Rule 10b5-1 trading arrangement adopted on November 20, 2024. Mr. Lis increased the number of shares to be sold pursuant to the plan by 2,125 ADSs. This Rule 10b5-1 trading arrangement is scheduled to terminate no later than June 1, 2026.

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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.