{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-21-151231","form_type":"8-K","ticker":"ALT","cik":"0001326190","company_name":"Altimmune, Inc.","filed_at":"2021-12-17T23:59:59+00:00","discovered_at":"2026-05-14T18:04:12.069067+00:00","generated_at":"2026-06-28T00:02:30.478048+00:00","sec_items":["1.02"],"event_type":"other_material","sentiment":"negative","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Altimmune terminates Lonza manufacturing agreement for AdCOVID program","bullets":["Terminated Master Services Agreement with Lonza Houston Inc. dated November 5, 2020.","Associated SOW provided for dedicated manufacturing suite for AdCOVID clinical/commercial supply.","Termination effective December 17, 2021, following prior discontinuation of AdCOVID program (June 29, 2021)."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-21-151231","json":"https://secwatch.observer/filing/0001104659-21-151231.json","markdown":"https://secwatch.observer/filing/0001104659-21-151231.md","text":"https://secwatch.observer/filing/0001104659-21-151231.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1326190/000110465921151231/0001104659-21-151231-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1326190/000110465921151231/tm2135808d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-28T00:02:30.478048+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"}