{"schema_version":"secwatch.filing_event.v1","accession":"0001213900-25-059672","form_type":"8-K","ticker":"MCGA","cik":"0002064658","company_name":"Yorkville Acquisition Corp.","filed_at":"2025-06-30T23:59:59+00:00","discovered_at":"2026-05-14T18:02:50.824119+00:00","generated_at":"2026-05-18T15:05:12.526647+00:00","sec_items":["1.01","3.02","5.02","5.03","8.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"Yorkville Acquisition Corp. closes $172.5M SPAC IPO; 17.25M units at $10 each, over-allotment fully exercised","bullets":["IPO closed June 30, 2025: 17,250,000 units at $10/unit for gross proceeds of $172.5M.","Trust account funded with $173.36M from IPO proceeds and $3.52M private placement of 351,825 sponsor units.","Board of directors appointed: Kevin McGurn, Devin Nunes, Scott Glabe, Omar Hasan, Mark Angelo (chair), Michael Rosselli.","SPAC has 24 months (extendable to 30 without shareholder vote) to complete initial business combination.","Units trade on Nasdaq under YORKU; shares/warrants expected under YORK and YORKW."],"urls":{"canonical":"https://secwatch.observer/filing/0001213900-25-059672","json":"https://secwatch.observer/filing/0001213900-25-059672.json","markdown":"https://secwatch.observer/filing/0001213900-25-059672.md","text":"https://secwatch.observer/filing/0001213900-25-059672.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/2064658/000121390025059672/0001213900-25-059672-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/2064658/000121390025059672/ea0247438-8k_york.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-18T15:05:12.526647+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"}