{"schema_version":"secwatch.filing_event.v1","accession":"0001171843-25-005815","form_type":"8-K","ticker":"ABUS","cik":"0001447028","company_name":"Arbutus Biopharma Corp","filed_at":"2025-09-10T23:59:59+00:00","discovered_at":"2026-05-14T18:02:44.011329+00:00","generated_at":"2026-05-17T06:58:51.126632+00:00","sec_items":["8.01","9.01"],"event_type":"litigation","sentiment":"positive","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"Arbutus wins claim construction ruling in patent suit vs Pfizer/BioNTech over COVID-19 vaccine LNP technology","bullets":["Court adopted Arbutus's proposed construction for 'fully encapsulated' as 'contained inside' in five LNP patents.","Court rejected Pfizer/BioNTech's proposal and declined to add 'as distinct from partially' used in prior Moderna ruling.","Patent claims cover lipid nanoparticle compositions used in COMIRNATY COVID-19 vaccine; damages sought.","Ruling narrows scope of disputed terms, strengthening Arbutus's infringement case; trial on merits pending.","Arbutus and licensee Genevant Sciences assert five patents against Pfizer/BioNTech in New Jersey action."],"urls":{"canonical":"https://secwatch.observer/filing/0001171843-25-005815","json":"https://secwatch.observer/filing/0001171843-25-005815.json","markdown":"https://secwatch.observer/filing/0001171843-25-005815.md","text":"https://secwatch.observer/filing/0001171843-25-005815.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1447028/000117184325005815/0001171843-25-005815-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1447028/000117184325005815/f8k_091025.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T06:58:51.126632+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"}