{"schema_version":"secwatch.filing_event.v1","accession":"0001628280-25-050666","form_type":"8-K","ticker":null,"cik":"0001567892","company_name":"Keenova Therapeutics plc","filed_at":"2025-11-07T23:59:59+00:00","discovered_at":"2026-05-14T18:02:39.776248+00:00","generated_at":"2026-05-16T23:04:26.214230+00:00","sec_items":["5.03"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.35,"calibrated_materiality_score":0.35,"confidence":"high","headline":"Mallinckrodt changes fiscal year end to calendar year from late-December fiscal year","bullets":["Fiscal year end shifts from last Friday of December to December 31, effective prospectively.","No transition report required; change adds 5 operating days in FY2025 and 2 in FY2026.","FY2025 annual report covers Dec 28, 2024 to Dec 31, 2025.","Quarterly periods in FY2026 will have different operating days, affecting comparability."],"urls":{"canonical":"https://secwatch.observer/filing/0001628280-25-050666","json":"https://secwatch.observer/filing/0001628280-25-050666.json","markdown":"https://secwatch.observer/filing/0001628280-25-050666.md","text":"https://secwatch.observer/filing/0001628280-25-050666.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1567892/000162828025050666/0001628280-25-050666-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1567892/000162828025050666/mnk-20251107.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T23:04:26.214230+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":[{"claim_id":"978a4a1b3f0695666365b43404fcf09e74557a3d","claim":"Keenova Therapeutics plc: Company changed fiscal year end from a 52-53 week year ending on the last Friday of December to a calendar year ending on December 31 (effective 2025-11-07).","evidence_excerpt":"On November 7, 2025, Mallinckrodt plc (the “Company”) determined to change the Company’s fiscal year end from a 52-53 week year ending on the last Friday of December to a calendar year ending on December 31.","evidence_source":"SEC 8-K Item 5.03/5.05/5.06","evidence_url":"https://www.sec.gov/Archives/edgar/data/1567892/000162828025050666/0001628280-25-050666-index.htm","confidence":0.9,"family_label":"Governance Changes","details":[{"label":"Change","value":"fiscal year change"},{"label":"Effective","value":"2025-11-07"}],"fact_type":"governance_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}