---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-25-105187"
form_type: "8-K"
ticker: "EURK"
cik: "0002000410"
company_name: "Eureka Acquisition Corp"
filed_at: "2025-11-03T23:59:59+00:00"
generated_at: "2026-05-17T00:57:37.410072+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Eureka Acquisition Corp enters business combination with Marine Thinking Inc.; enterprise value ~$130M

## Summary
- SPAC (EURK) and Marine Thinking Inc. sign Business Combination Agreement; SPAC to redomicile to Canada and become Marine Thinking Holdings Inc.
- Total share consideration set at US$130M plus potential pre-IPO proceeds (capped at $6.5M), at $10 per SPAC Class A share.
- Post-closing board: 7 directors—6 designated by Marine Thinking, 1 by SPAC sponsor Hercules Capital Management.
- Termination fee of $2M payable by either party under certain conditions; deal subject to shareholder approvals, SEC effectiveness, and Nasdaq listing.
- Lock-up agreements restrict transfers of SPAC shares for 365 days post-closing for sponsor and certain company shareholders.

## SEC filing metadata
- accession: 0001213900-25-105187
- form_type: 8-K
- ticker: EURK
- cik: 0002000410
- company_name: Eureka Acquisition Corp
- filed_at: 2025-11-03T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 1.01, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2000410/000121390025105187/0001213900-25-105187-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2000410/000121390025105187/ea0262122-8k_eureka.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-25-105187
- JSON: https://secwatch.observer/filing/0001213900-25-105187.json
- Plain text: https://secwatch.observer/filing/0001213900-25-105187.txt

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