{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-23-056978","form_type":"8-K","ticker":"ALKS","cik":"0001520262","company_name":"Alkermes plc.","filed_at":"2023-10-31T23:59:59+00:00","discovered_at":"2026-05-14T18:03:29.350375+00:00","generated_at":"2026-06-09T04:36:20.136619+00:00","sec_items":["7.01","8.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Alkermes sets Nov 6 record date, Nov 15 distribution for Mural Oncology spin-off (1:10 ratio)","bullets":["Form 10 declared effective by SEC for Mural Oncology spin-off.","Record date set as Nov 6, 2023; distribution date Nov 15, 2023.","Shareholders receive one Mural share per ten Alkermes shares held.","When-issued trading for MURA under 'MURAV' and ALKS ex-distribution under 'ALKSV' expected.","Mural Oncology to trade on Nasdaq under 'MURA' from Nov 16, 2023."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-23-056978","json":"https://secwatch.observer/filing/0000950170-23-056978.json","markdown":"https://secwatch.observer/filing/0000950170-23-056978.md","text":"https://secwatch.observer/filing/0000950170-23-056978.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1520262/000095017023056978/0000950170-23-056978-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1520262/000095017023056978/alks-20231031.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-09T04:36:20.136619+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"}