{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-26-008322","form_type":"8-K","ticker":"ENZN","cik":"0000727510","company_name":"Viskase Holdings, Inc.","filed_at":"2026-01-30T23:59:59+00:00","discovered_at":"2026-05-14T18:02:37.595321+00:00","generated_at":"2026-05-16T06:11:14.812755+00:00","sec_items":["1.01","3.03","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.1,"calibrated_materiality_score":0.1,"confidence":"high","headline":"Enzon extends stockholder rights plan expiration to March 2, 2026","bullets":["Seventh Amendment to Section 382 Rights Agreement executed January 30, 2026.","Final Expiration Date of rights extended from Jan 31, 2026 to noon NYC time on March 2, 2026.","Rights agreement otherwise unmodified; purpose is to protect net operating loss tax attributes.","Continental Stock Transfer & Trust continues as rights agent."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-26-008322","json":"https://secwatch.observer/filing/0001104659-26-008322.json","markdown":"https://secwatch.observer/filing/0001104659-26-008322.md","text":"https://secwatch.observer/filing/0001104659-26-008322.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/727510/000110465926008322/0001104659-26-008322-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/727510/000110465926008322/tm2521156d11_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T06:11:14.812755+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"}