---
schema_version: "secwatch.filing_event.v1"
accession: "0001829126-25-007939"
form_type: "8-K"
ticker: "APAC"
cik: "0002043630"
company_name: "StoneBridge Acquisition II Corp"
filed_at: "2025-10-07T23:59:59+00:00"
generated_at: "2026-05-17T04:31:04.498575+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# StoneBridge Acquisition II closes IPO of 5.75M units, raises $57.5M in trust

## Summary
- IPO of 5,750,000 units at $10.00/unit, including full over-allotment of 750,000 units, gross proceeds $57.5M.
- Private placement of 153,750 units to sponsor and institutional investors at $10.00/unit, gross proceeds $1.5375M.
- Total $57.5M deposited into trust account at $10.00 per unit for public shareholder benefit.
- Company has 18 months from October 1, 2025 to complete initial business combination.
- Audited balance sheet as of Oct 1, 2025: total assets $58.6M, shareholders' equity $732,677.

## SEC filing metadata
- accession: 0001829126-25-007939
- form_type: 8-K
- ticker: APAC
- cik: 0002043630
- company_name: StoneBridge Acquisition II Corp
- filed_at: 2025-10-07T23:59:59+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/2043630/000182912625007939/0001829126-25-007939-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2043630/000182912625007939/stonebridgeacq2_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001829126-25-007939
- JSON: https://secwatch.observer/filing/0001829126-25-007939.json
- Plain text: https://secwatch.observer/filing/0001829126-25-007939.txt

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