{"filing":{"accession_number":"0001193125-26-331138","cik":"0001521036","ticker":"LNTH","company_name":"Lantheus Holdings, Inc.","form":"8-K","filing_date":"2026-08-03","report_date":"2026-08-01","primary_document":"d167446d8k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/1521036/000119312526331138/d167446d8k.htm"},"events":[{"id":23483,"run_id":21234,"accession_number":"0001193125-26-331138","anchor_item_number":"1.01","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.99,"summary":"Lantheus Holdings entered into an Agreement and Plan of Merger with Curium US Holdings LLC on August 3, 2026, whereby Lantheus will merge with and into a subsidiary of Curium, with Lantheus surviving as a wholly owned subsidiary of Curium. The merger consideration is $102.50 per share in cash plus contingent value rights up to $12.00 per share, representing a material change of control transaction.","company_name":"Lantheus Holdings, Inc.","ticker":"LNTH","filing_date":"2026-08-03","form":"8-K","submitted_at":null,"items":[{"id":23717,"accession_number":"0001193125-26-331138","item_number":"1.01","item_title":"Entry into a Material Definitive Agreement","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.99,"reasoning":"Lantheus Holdings entered into an Agreement and Plan of Merger with Curium US Holdings LLC on August 3, 2026, whereby Lantheus will merge with and into a subsidiary of Curium, with Lantheus surviving as a wholly owned subsidiary of Curium. The merger consideration is $102.50 per share in cash plus contingent value rights up to $12.00 per share. This is a material acquisition/change of control transaction that would fundamentally alter the registrant's ownership and control structure.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-04T10:04:50.211854+00:00","company_name":"","ticker":null,"filing_date":""}]},{"id":23484,"run_id":21234,"accession_number":"0001193125-26-331138","anchor_item_number":"5.02","event_type":"exec_compensation","event_domain":"governance","is_material":true,"confidence":0.92,"summary":"Lantheus disclosed compensatory arrangements for named executive officers in connection with the pending merger, including transaction bonuses totaling $6.0 million and amendments to severance letter agreements for five named executive officers clarifying treatment of converted PSU awards and eligibility for earned 2026 bonuses upon qualifying terminations.","company_name":"Lantheus Holdings, Inc.","ticker":"LNTH","filing_date":"2026-08-03","form":"8-K","submitted_at":null,"items":[{"id":23718,"accession_number":"0001193125-26-331138","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_compensation","event_domain":"governance","is_material":true,"confidence":0.92,"reasoning":"The Item 5.02 disclosure centers on two compensatory arrangements for named executive officers in connection with a pending merger: (1) transaction bonuses of $4.0 million and $500,000 allocated to Mary Anne Heino and Daniel M. Niedzwiecki respectively from a $6.0 million pool, payable upon closing subject to continued employment; and (2) amendments to severance letter agreements for five named executive officers clarifying treatment of converted PSU awards and eligibility for earned 2026 bonuses upon qualifying terminations. These are material compensatory arrangements that would affect investor assessment of executive incentives and severance obligations in the context of the proposed acquisition.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-04T10:04:50.211854+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":23717,"accession_number":"0001193125-26-331138","item_number":"1.01","item_title":"Entry into a Material Definitive Agreement","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.99,"reasoning":"Lantheus Holdings entered into an Agreement and Plan of Merger with Curium US Holdings LLC on August 3, 2026, whereby Lantheus will merge with and into a subsidiary of Curium, with Lantheus surviving as a wholly owned subsidiary of Curium. The merger consideration is $102.50 per share in cash plus contingent value rights up to $12.00 per share. This is a material acquisition/change of control transaction that would fundamentally alter the registrant's ownership and control structure.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-04T10:04:50.211854+00:00","company_name":"Lantheus Holdings, Inc.","ticker":"LNTH","filing_date":"2026-08-03"},{"id":23718,"accession_number":"0001193125-26-331138","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_compensation","event_domain":"governance","is_material":true,"confidence":0.92,"reasoning":"The Item 5.02 disclosure centers on two compensatory arrangements for named executive officers in connection with a pending merger: (1) transaction bonuses of $4.0 million and $500,000 allocated to Mary Anne Heino and Daniel M. Niedzwiecki respectively from a $6.0 million pool, payable upon closing subject to continued employment; and (2) amendments to severance letter agreements for five named executive officers clarifying treatment of converted PSU awards and eligibility for earned 2026 bonuses upon qualifying terminations. These are material compensatory arrangements that would affect investor assessment of executive incentives and severance obligations in the context of the proposed acquisition.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-04T10:04:50.211854+00:00","company_name":"Lantheus Holdings, Inc.","ticker":"LNTH","filing_date":"2026-08-03"}]}