---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-25-106635"
form_type: "8-K"
ticker: "EURK"
cik: "0002000410"
company_name: "Eureka Acquisition Corp"
filed_at: "2025-11-05T23:59:59+00:00"
generated_at: "2026-05-17T00:25:55.885383+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

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

## Summary
- Sponsor deposited $150,000 into trust to extend deadline from Nov 3 to Dec 3, 2025.
- Company issued $150,000 unsecured promissory note to Hercules Capital Management Corp.
- Note bears no interest, due upon business combination or expiry of SPAC term.
- Note convertible into private units at $10/unit, each consisting of one Class A ordinary share and one right.
- Extension is one of up to eight monthly extensions permitted under charter, each requiring $150K deposit.

## SEC filing metadata
- accession: 0001213900-25-106635
- form_type: 8-K
- ticker: EURK
- cik: 0002000410
- company_name: Eureka Acquisition Corp
- filed_at: 2025-11-05T23:59:59+00:00
- event_type: debt
- 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/2000410/000121390025106635/0001213900-25-106635-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2000410/000121390025106635/ea0264138-8k_eureka.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-25-106635
- JSON: https://secwatch.observer/filing/0001213900-25-106635.json
- Plain text: https://secwatch.observer/filing/0001213900-25-106635.txt

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