{"schema_version":"secwatch.filing_event.v1","accession":"0001213900-25-061847","form_type":"8-K","ticker":"MCGA","cik":"0002064658","company_name":"Yorkville Acquisition Corp.","filed_at":"2025-07-07T23:59:59+00:00","discovered_at":"2026-05-14T18:02:45.930903+00:00","generated_at":"2026-05-18T09:22:26.898236+00:00","sec_items":["8.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Yorkville Acquisition Corp. closes $172.5M IPO; $173.4M placed in trust","bullets":["Sold 17,250,000 units at $10.00/unit, including full over-allotment, generating gross proceeds of $172.5M.","Simultaneous private placement of 351,825 units to sponsor Yorkville Acquisition Sponsor LLC for $3.5M.","Net proceeds of $173,362,500 deposited into trust account, representing $10.05 per public share.","Transaction costs total $9.4M, including $1.2M cash underwriting fee and $5.2M deferred fee.","Company has 24 months from June 30, 2025 to complete an initial business combination."],"urls":{"canonical":"https://secwatch.observer/filing/0001213900-25-061847","json":"https://secwatch.observer/filing/0001213900-25-061847.json","markdown":"https://secwatch.observer/filing/0001213900-25-061847.md","text":"https://secwatch.observer/filing/0001213900-25-061847.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/2064658/000121390025061847/0001213900-25-061847-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/2064658/000121390025061847/ea0248251-8k_york.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-18T09:22:26.898236+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"}