---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-26-041478"
form_type: "8-K"
ticker: "EURK"
cik: "0002000410"
company_name: "Eureka Acquisition Corp"
filed_at: "2026-04-08T23:59:59+00:00"
generated_at: "2026-05-15T06:56:39.473008+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Eureka Acquisition extends deadline to May 3, 2026 via $150K deposit by Marine Thinking

## Summary
- Deposited $150,000 into trust to extend business combination deadline from April 3 to May 3, 2026.
- Issued $150,000 convertible promissory note to Marine Thinking, convertible into private units at $10/unit.
- Extension funded by target Marine Thinking under BCA signed Oct 29, 2025.
- Note bears no interest, payable upon business combination or expiry of term.

## SEC filing metadata
- accession: 0001213900-26-041478
- form_type: 8-K
- ticker: EURK
- cik: 0002000410
- company_name: Eureka Acquisition Corp
- filed_at: 2026-04-08T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 1.01, 2.03, 3.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2000410/000121390026041478/0001213900-26-041478-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2000410/000121390026041478/ea0285547-8k425_eureka.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-26-041478
- JSON: https://secwatch.observer/filing/0001213900-26-041478.json
- Plain text: https://secwatch.observer/filing/0001213900-26-041478.txt

## Source-grounded claims
- claim_id: c7002ef8230082cbd2a1eb05347c48533fad8797
  claim: Eureka Acquisition Corp incurred loan of $150,000 with Marine Thinking Inc. at bears no interest maturing the earlier to occur of (i) the consummation of the Company's business combination or (ii) the date of expiry of the term of the Company.
  evidence_excerpt: The Company issued an unsecured promissory note in the aggregate principal amount of $150,000 (the “ Extension Note ”) dated April 6, 2026 to Marine Thinking in connection with the payment of the Monthly Extension Fee.
  evidence_url: https://www.sec.gov/Archives/edgar/data/2000410/000121390026041478/0001213900-26-041478-index.htm

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