{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-277754","form_type":"8-K","ticker":"LNTH","cik":"0001521036","company_name":"Lantheus Holdings, Inc.","filed_at":"2025-11-12T23:59:59+00:00","discovered_at":"2026-05-14T18:02:39.622886+00:00","generated_at":"2026-05-16T21:08:14.988517+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"Lantheus CEO Brian Markison to retire Dec 31, 2025; consulting deal through Mar 31, 2026","bullets":["CEO Brian Markison retiring effective Dec 31, 2025; enters consulting agreement from Jan 1 to Mar 31, 2026.","Monthly advisory fee of $83,333 during consulting period, subject to restrictive covenants.","Base salary paid through retirement; 2025 annual bonus paid lump sum within 60 days if earned.","Outstanding equity awards vest through retirement date, then follow retirement provisions.","No successor named; consulting period extendable by mutual agreement."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-277754","json":"https://secwatch.observer/filing/0001193125-25-277754.json","markdown":"https://secwatch.observer/filing/0001193125-25-277754.md","text":"https://secwatch.observer/filing/0001193125-25-277754.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1521036/000119312525277754/0001193125-25-277754-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1521036/000119312525277754/d92727d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T21:08:14.988517+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}