{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-26-028449","form_type":"8-K","ticker":"ENZN","cik":"0000727510","company_name":"Viskase Holdings, Inc.","filed_at":"2026-03-16T23:59:59+00:00","discovered_at":"2026-05-14T18:02:37.596519+00:00","generated_at":"2026-05-15T12:12:58.078753+00:00","sec_items":["7.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"Enzon extends exchange offer for Series C Preferred to March 19, 2026","bullets":["Exchange offer for Series C Non-Convertible Redeemable Preferred now expires 5:00 p.m. ET on March 19, 2026.","Holders may exchange Series C Preferred shares for Enzon common stock at the stated ratio.","Extension announced via press release on March 16, 2026; prior expiration date is not disclosed.","Merger with Viskase Companies, Inc. remains pending; S-4 registration statement filed with SEC."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-26-028449","json":"https://secwatch.observer/filing/0001104659-26-028449.json","markdown":"https://secwatch.observer/filing/0001104659-26-028449.md","text":"https://secwatch.observer/filing/0001104659-26-028449.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/727510/000110465926028449/0001104659-26-028449-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/727510/000110465926028449/tm268789d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-15T12:12:58.078753+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"}