{"filing":{"accession_number":"0001628280-26-037387","cik":"0001704292","ticker":"ZLAB","company_name":"Zai Lab Ltd","form":"8-K","filing_date":"2026-05-21","report_date":null,"primary_document":"zlab-20260518.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1704292/000162828026037387/zlab-20260518.htm"},"events":[{"id":974,"run_id":843,"accession_number":"0001628280-26-037387","anchor_item_number":"5.02","event_type":"exec_departure","event_domain":"governance","is_material":true,"confidence":0.95,"summary":"Mr. Josh Smiley's departure as President and Chief Operating Officer, effective May 18, 2026, with final employment termination on May 22, 2026, is the principal disclosed action. The filing centers on his cessation of service and severance arrangement, making this a clear executive departure. The assumption of his responsibilities by the CEO and management team is secondary to the departure itself.","company_name":"Zai Lab Ltd","ticker":"ZLAB","filing_date":"2026-05-21","items":[{"id":1245,"accession_number":"0001628280-26-037387","item_number":"5.02","item_title":"Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.","event_type":"exec_departure","event_domain":"governance","is_material":true,"confidence":0.95,"reasoning":"Mr. Josh Smiley's departure as President and Chief Operating Officer, effective May 18, 2026, with final employment termination on May 22, 2026, is the principal disclosed action. The filing centers on his cessation of service and severance arrangement, making this a clear executive departure. The assumption of his responsibilities by the CEO and management team is secondary to the departure itself.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-05-22T03:05:38.453559+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":1245,"accession_number":"0001628280-26-037387","item_number":"5.02","item_title":"Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.","event_type":"exec_departure","event_domain":"governance","is_material":true,"confidence":0.95,"reasoning":"Mr. Josh Smiley's departure as President and Chief Operating Officer, effective May 18, 2026, with final employment termination on May 22, 2026, is the principal disclosed action. The filing centers on his cessation of service and severance arrangement, making this a clear executive departure. The assumption of his responsibilities by the CEO and management team is secondary to the departure itself.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-05-22T03:05:38.453559+00:00","company_name":"Zai Lab Ltd","ticker":"ZLAB","filing_date":"2026-05-21"}]}