{"schema_version":"secwatch.filing_event.v1","accession":"0001140361-26-012781","form_type":"8-K/A","ticker":"NUWE","cik":"0001506492","company_name":"Nuwellis, Inc.","filed_at":"2026-04-01T23:59:59+00:00","discovered_at":"2026-05-14T18:02:32.386785+00:00","generated_at":"2026-05-15T07:58:05.901141+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"Nuwellis amends 8-K to include former directors' response letters; company disputes statements","bullets":["Mika Grasso and Katharyn Field resigned from Board effective March 26, 2026.","Supplemental response letters from both former directors filed as Exhibits 17.1 and 17.2.","Company and continuing Board disagree with certain statements in the response letters, standing by initial filing."],"urls":{"canonical":"https://secwatch.observer/filing/0001140361-26-012781","json":"https://secwatch.observer/filing/0001140361-26-012781.json","markdown":"https://secwatch.observer/filing/0001140361-26-012781.md","text":"https://secwatch.observer/filing/0001140361-26-012781.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1506492/000114036126012781/0001140361-26-012781-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1506492/000114036126012781/ef20069505_8ka.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-15T07:58:05.901141+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"}