---
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"
generated_at: "2026-05-18T09:22:26.898236+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Yorkville Acquisition Corp. closes $172.5M IPO; $173.4M placed in trust

## Summary
- 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.

## SEC filing metadata
- 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
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 8.01, 9.01
- 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

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-25-061847
- JSON: https://secwatch.observer/filing/0001213900-25-061847.json
- Plain text: https://secwatch.observer/filing/0001213900-25-061847.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.