{"schema_version":"secwatch.filing_event.v1","accession":"0001759631-24-000078","form_type":"8-K","ticker":"HYLN","cik":"0001759631","company_name":"Hyliion Holdings Corp.","filed_at":"2024-04-04T23:59:59+00:00","discovered_at":"2026-05-14T18:03:19.930617+00:00","generated_at":"2026-06-04T02:23:38.162754+00:00","sec_items":["8.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.2,"calibrated_materiality_score":0.2,"confidence":"medium","headline":"Hyliion holds KARNO generator showcase near Cincinnati on April 4, 2024","bullets":["Hosts KARNO Technology Showcase at its facility near Cincinnati, Ohio.","Event highlights KARNO generator, a fuel-flexible linear generator for efficiency.","No financial results, guidance, or material corporate updates disclosed."],"urls":{"canonical":"https://secwatch.observer/filing/0001759631-24-000078","json":"https://secwatch.observer/filing/0001759631-24-000078.json","markdown":"https://secwatch.observer/filing/0001759631-24-000078.md","text":"https://secwatch.observer/filing/0001759631-24-000078.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1759631/000175963124000078/0001759631-24-000078-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1759631/000175963124000078/hyln-20240404.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-04T02:23:38.162754+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"}