Eureka Acquisition Corp 8-K

What Happened
Eureka Acquisition Corp (EURK) filed an 8‑K on April 8, 2026 announcing it extended its deadline to complete an initial business combination by one month — from April 3, 2026 to May 3, 2026 — after depositing $150,000 into the company’s trust account. The $150,000 Monthly Extension Fee was paid by Marine Thinking Inc. under the parties’ business combination agreement. In connection with that payment, Eureka issued an unsecured promissory note (the “Extension Note”) to Marine Thinking dated April 6, 2026.

Key Details

• Extension: one-month extension of the SPAC combination deadline from April 3, 2026 to May 3, 2026 after a $150,000 deposit into the Trust Account (payment on/around April 2, 2026).
• Extension Note: $150,000 principal, dated April 6, 2026; no interest; payable at the earlier of consummation of the business combination or company expiry.
• Conversion: Marine Thinking may convert all or part of the note into Units (one Class A ordinary share + one right to receive 1/5 of a Class A share on closing) by dividing the outstanding principal by $10. Conversion notice must be given at least two business days before closing.
• Securities and filing: Units issuable on conversion are unregistered and subject to transfer restrictions until the business combination; they will have registration rights. Eureka intends to file a Form S‑4 (proxy/prospectus) for the proposed transaction with Marine Thinking.

Why It Matters
This filing shows Eureka secured an extra month to close its announced merger with Marine Thinking by using a sponsor-funded extension — a common SPAC practice. The $150,000 deposit protects public shareholders’ trust account value during the extension period, while the Extension Note creates a short‑term obligation for Eureka that is unsecured and payable at closing or company expiry. If Marine Thinking converts the note into Units, existing equity could be diluted by the number of Units issued (principal divided by $10). Investors should watch the upcoming Form S‑4/proxy for full transaction terms, timing, and any impact on shareholder value.