{"schema_version":"secwatch.filing_event.v1","accession":"0001193805-26-001130","form_type":"8-K","ticker":"ARCT","cik":"0001768224","company_name":"Arcturus Therapeutics Holdings Inc.","filed_at":"2026-08-25T10:00:33+00:00","discovered_at":"2026-08-25T10:05:00.646774+00:00","generated_at":"2026-08-25T10:06:03.979994+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":"Arcturus to present ARCT-810 OTC deficiency data at SSIEM 2026","bullets":["Poster on ARCT-810 mRNA therapy for ornithine transcarbamylase deficiency at SSIEM 2026 in Helsinki on Aug 25, 2026","Data covers dietary intake and biochemical outcomes in adolescents and adults","Additional data and regulatory plan expected later this quarter","Presentation furnished as Exhibit 99.1 to Form 8-K"],"urls":{"canonical":"https://secwatch.observer/filing/0001193805-26-001130","json":"https://secwatch.observer/filing/0001193805-26-001130.json","markdown":"https://secwatch.observer/filing/0001193805-26-001130.md","text":"https://secwatch.observer/filing/0001193805-26-001130.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1768224/000119380526001130/0001193805-26-001130-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1768224/000119380526001130/e665725_8k-arct.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-08-25T10:06:03.979994+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"}