---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-25-084509"
form_type: "8-K"
ticker: "EURK"
cik: "0002000410"
company_name: "Eureka Acquisition Corp"
filed_at: "2025-09-04T23:59:59+00:00"
generated_at: "2026-05-17T08:22:23.776741+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Eureka Acquisition extends business combination deadline to Oct 3, 2025 via $150K sponsor note

## Summary
- Sponsor Hercules Capital deposited $150K into trust account to extend deadline one month to October 3, 2025.
- Company issued $150K unsecured promissory note to sponsor; note bears no interest, payable upon business combination or expiry.
- Sponsor may convert note into private units at $10/unit, each unit consists of one Class A share and one right.
- Conversion rights require two business days' notice before closing; no fractional units issued.
- Note is repaid only from non-trust funds if business combination not consummated.

## SEC filing metadata
- accession: 0001213900-25-084509
- form_type: 8-K
- ticker: EURK
- cik: 0002000410
- company_name: Eureka Acquisition Corp
- filed_at: 2025-09-04T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 1.01, 2.03, 3.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2000410/000121390025084509/0001213900-25-084509-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2000410/000121390025084509/ea0256081-8k_eureka.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-25-084509
- JSON: https://secwatch.observer/filing/0001213900-25-084509.json
- Plain text: https://secwatch.observer/filing/0001213900-25-084509.txt

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