{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-24-064247","form_type":"8-K","ticker":"ENZN","cik":"0000727510","company_name":"Viskase Holdings, Inc.","filed_at":"2024-05-22T23:59:59+00:00","discovered_at":"2026-05-14T18:03:21.839350+00:00","generated_at":"2026-06-01T09:58:27.672904+00:00","sec_items":["1.01","3.03","9.01"],"event_type":"other","sentiment":"neutral","materiality_score":0.2,"calibrated_materiality_score":0.2,"confidence":"high","headline":"Enzon extends shareholder rights plan expiration to March 31, 2025","bullets":["Second Amendment to Section 382 Rights Agreement extends final expiration date from June 2, 2024 to March 31, 2025.","Rights agreement otherwise remains unmodified; rights agent is Continental Stock Transfer & Trust Company.","Extension intended to preserve ability to utilize net operating loss carryforwards."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-24-064247","json":"https://secwatch.observer/filing/0001104659-24-064247.json","markdown":"https://secwatch.observer/filing/0001104659-24-064247.md","text":"https://secwatch.observer/filing/0001104659-24-064247.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/727510/000110465924064247/0001104659-24-064247-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/727510/000110465924064247/tm2415024d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-01T09:58:27.672904+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"}