{"schema_version":"secwatch.filing_event.v1","accession":"0002036042-25-000018","form_type":"8-K","ticker":"SION","cik":"0002036042","company_name":"Sionna Therapeutics, Inc.","filed_at":"2025-06-13T23:59:59+00:00","discovered_at":"2026-05-14T18:02:50.756310+00:00","generated_at":"2026-05-19T09:25:19.354143+00:00","sec_items":["5.07"],"event_type":"other","sentiment":"neutral","materiality_score":0.25,"calibrated_materiality_score":0.15,"confidence":"high","headline":"Sionna Therapeutics annual meeting elects three Class I directors, ratifies auditor","bullets":["Shareholders elected Joshua Resnick, Bruce Booth, and Lucian Iancovici as Class I directors, each with over 42 million votes for.","Ratification of Deloitte & Touche as independent auditor for FY2025 passed with 43,189,421 votes for, none against.","Record date April 15, 2025; 44,124,394 shares outstanding; broker non-votes of 496,255 on director elections."],"urls":{"canonical":"https://secwatch.observer/filing/0002036042-25-000018","json":"https://secwatch.observer/filing/0002036042-25-000018.json","markdown":"https://secwatch.observer/filing/0002036042-25-000018.md","text":"https://secwatch.observer/filing/0002036042-25-000018.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/2036042/000203604225000018/0002036042-25-000018-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/2036042/000203604225000018/sion-20250612.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-19T09:25:19.354143+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"}