{"schema_version":"secwatch.filing_event.v1","accession":"0001213900-25-080922","form_type":"8-K","ticker":"EURK","cik":"0002000410","company_name":"Eureka Acquisition Corp","filed_at":"2025-08-27T23:59:59+00:00","discovered_at":"2026-05-14T18:02:45.791613+00:00","generated_at":"2026-05-17T09:48:47.858929+00:00","sec_items":["1.01","2.03","3.02","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.35,"calibrated_materiality_score":0.35,"confidence":"high","headline":"Eureka Acquisition Corp enters $300K sponsor note with conversion option","bullets":["Eureka Acquisition Corp issued up to $300,000 unsecured promissory note to sponsor Hercules Capital Management Corp.","Note bears no interest; principal due upon business combination or company expiry.","Sponsor can convert note into private units at $10/unit prior to deal closing.","Proceeds used for general working capital; drawdowns available until business combination."],"urls":{"canonical":"https://secwatch.observer/filing/0001213900-25-080922","json":"https://secwatch.observer/filing/0001213900-25-080922.json","markdown":"https://secwatch.observer/filing/0001213900-25-080922.md","text":"https://secwatch.observer/filing/0001213900-25-080922.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/2000410/000121390025080922/0001213900-25-080922-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/2000410/000121390025080922/ea0254711-8k_eureka.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T09:48:47.858929+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"}