{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-26-034515","form_type":"8-K","ticker":"JHG","cik":"0001274173","company_name":"JANUS HENDERSON GROUP PLC","filed_at":"2026-03-25T23:59:59+00:00","discovered_at":"2026-05-14T18:02:34.687642+00:00","generated_at":"2026-05-15T08:58:30.228360+00:00","sec_items":["7.01","9.01"],"event_type":"m_and_a","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"medium","headline":"Janus Henderson amends merger agreement; furnishes investor presentation for Jupiter deal","bullets":["Amendment No. 1 to merger agreement signed March 24, 2026; original dated Dec 21, 2025.","Investor presentation furnished March 25, 2026 under Regulation FD regarding the proposed merger.","Definitive proxy statement filed March 11, 2026; mailed to shareholders March 12, 2026.","Transaction would make Janus Henderson a wholly owned subsidiary of Jupiter Company Limited.","Shareholder vote required; closing subject to regulatory and other conditions."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-26-034515","json":"https://secwatch.observer/filing/0001104659-26-034515.json","markdown":"https://secwatch.observer/filing/0001104659-26-034515.md","text":"https://secwatch.observer/filing/0001104659-26-034515.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1274173/000110465926034515/0001104659-26-034515-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1274173/000110465926034515/tm269831d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-15T08:58:30.228360+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"}