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8-K ·Filed Aug 13, 2026

EURK

Eureka Acquisition Corp
NEUTRAL
Impact 3/10
Horizonweeks Processed2mo ago SEC0001213900-26-089205
Killer combo: Material agreement + unregistered equity (likely PIPE/convertible)
Actionable Insight • Neutral

This is a routine SPAC extension filing with no new deal economics. Monitor for the effectiveness of the S-4 registration statement and the shareholder vote on the Marine Thinking business combination. The next deadline is September 3, 2026.

DirectionNeutral
Confidencehigh
Horizonweeks
Latest settled — T+20d ⚠ clustered
EURK ▼ -4.09% at T+20d
NEUTRAL call -4.09% · α vs SPY -2.10% · entry $11.98 → $11.49
Next anchor: T+60d in 9d
Latest observation: T+50 -5.58% FF3 residual α
Entry = T+0 close
Aug 13, 2026
via day close
T+1d
0.00%
call 0.00% · α +0.47%
$11.98
settled 3mo ago
T+5d
-0.25%
call -0.25% · α +1.12%
$11.95
settled 2mo ago
T+20d
-4.09%
call -4.09% · α -2.10%
$11.49
settled 7w ago
T+60d
Pending
in 9d

Price Chart

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Executive Summary

Eureka Acquisition Corp (EURK) filed an 8-K reporting that Marine Thinking Inc. deposited $8,253.03 into the trust account to extend the deadline for completing its initial business combination by one month, from August 3, 2026 to September 3, 2026. In connection with this payment, EURK issued an unsecured promissory note for the same amount to Marine Thinking, which is convertible into private units at $10.00 per unit upon a business combination. This is a routine SPAC extension filing that keeps the pending merger with Marine Thinking alive but provides no new material information on deal completion probability.

Key Financial Metrics

Offering Size
$8.3K

Key Facts

  • Marine Thinking Inc. deposited $8,253.03 into the trust account to extend the business combination deadline by one month to September 3, 2026.
  • Eureka Acquisition Corp issued an unsecured promissory note for $8,253.03 to Marine Thinking Inc. in connection with the extension payment.
  • The promissory note bears no interest, is due upon the earlier of a business combination or the expiry of the company's term, and is convertible into private units at $10.00 per unit.
  • The extension is pursuant to a business combination agreement dated October 29, 2025 with Marine Thinking, an autonomous ship and fleet solutions company.
  • The company has filed an S-4 registration statement (File No. 333-295483) for the proposed business combination.

Financial Impact

Monthly extension fee of $8,253.03 deposited into trust; promissory note of same amount issued to Marine Thinking.

cashdebt

Risk Factors

  • Failure to consummate the business combination by September 3, 2026 would require another extension or trigger liquidation.
  • Shareholder redemptions could reduce trust proceeds available for the combined company.
  • Regulatory or shareholder approval risks for the Marine Thinking transaction.

Market Snapshot

Exchange
Nasdaq
Sector
Services-Computer Integrated Systems Design

Investment Themes

Software & IT

Documents Analyzed

This report is based on 5 SEC documents filed with EDGAR.

DocumentAccession Number
8-K Filing (Primary)0001213900-26-089205
Document: ea030198201ex10-1.htm0001213900-26-089205
Document: 0001213900-26-089205-index-headers.html0001213900-26-089205
Document: 0001213900-26-089205-index.html0001213900-26-089205
Document: 0001213900-26-089205.txt0001213900-26-089205
10 reports for EURK
Performance horizon
33% Hit rate @ T+1 1 of 3 directional calls Went positive at some point 2 of 3 best @ T+60▲ +1.63%Jul 6, 2026
Filters
Rows
Reports for EURK — sortable, filterable
TypeNow
Oct 13, 2026
14d ago
425
BULLISH ★ 5/10
$11.55 $11.55· 0.00%▼ −0.28%$11.55 (+0.00%)
Oct 13, 2026
14d ago
8-K
NEUTRAL ★ 3/10
$11.55 $11.55· 0.00%▼ −0.28%$11.55 (+0.00%)
Oct 13, 2026
14d ago
425
NEUTRAL ★ 3/10
$11.50 $11.55▲ +0.43%▲ +1.52%$11.55 (+0.43%)
Oct 13, 2026
14d ago
8-K
NEUTRAL ★ 3/10
$11.50 $11.55▲ +0.43%▲ +1.52%$11.55 (+0.43%)
Sep 2, 2026
7w ago
8-K
BEARISH ★ 7/10
$11.60 $11.51▲ +0.82%▲ +1.87%$11.55 (+0.43%)
Aug 13, 2026
10w ago
425
NEUTRAL ★ 3/10
$11.98 $11.98· 0.00%▲ +0.47%$11.55 (−3.59%)
Aug 13, 2026
10w ago
8-K
NEUTRAL ★ 3/10
$11.98 $11.98· 0.00%▲ +0.47%$11.55 (−3.59%)
Jul 6, 2026
16w ago
8-K
BEARISH ★ 7/10
$11.74 $11.88▼ −1.19%▼ −1.50%$11.55 (+1.58%)
Jun 23, 2026
18w ago
425
NEUTRAL ★ 2/10
$11.44 $11.44· 0.00%▲ +0.05%$11.55 (+0.96%)
Jun 23, 2026
18w ago
8-K
NEUTRAL ★ 2/10
$11.44 $11.44· 0.00%▲ +0.05%$11.55 (+0.96%)
Showing 10 of 10

US Market Status

Market Closed — Opens Thu (11h 33m)

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Report published Aug 13, 2026