Eureka Acquisition Corp (EURK): Entry into a Material Definitive Agreement
Eureka Acquisition Corp (EURK) filed an SEC Form 8-K — Entry into a Material Definitive Agreement. false 0002000410 00-0000000 0002000410 2026-08-11 2026-08-11 0002000410 EURK:UnitsConsistingOfOneClassOrdinaryShare0.0001ParValueAndOneRightToAcquireOnefifthOfOneClassOrdinaryShareMember 2026-08-11 2026-08-11 0002000410 EURK:ClassOrdinarySharesParValue0.0001PerShareMember 2026-08
How this was made
The 30-second read
Why it matters
The company extended the deadline by one month (Aug. 3 to Sept. 3, 2026) via a trust deposit funded by Marine Thinking and documented through a zero-interest extension promissory note with optional conversion into units.
Market read
This is a primary SEC filing detailing SPAC extension mechanics, reducing immediate deadline pressure while adding a small optional conversion/dilution pathway.
What to watch
Traders should watch whether Marine Thinking elects to convert the note into units, which could create incremental dilution and signal confidence in a forthcoming business combination.
Background
EURK is a SPAC with an initial business-combination deadline that can be extended by depositing monthly extension fees into its trust account.
Ticker impact
EURK disclosed a monthly extension fee deposit and issued an $8,253.03 zero-interest extension promissory note to extend its business-combination deadline to Sept. 3, 2026.
Near-term impact likely limited, but the extension reduces immediate liquidation risk while adding small conversion/dilution overhang if the note is converted.
The 8-K is a primary disclosure of SPAC deadline extension mechanics (trust deposit, note terms, default/acceleration, and optional conversion). The dollar amount is small, so magnitude is likely modest, but the deadline extension is directly relevant to SPAC risk and investor expectations.
Market effects
Adds another data point on SPACs using monthly extension fees and note-based financing to bridge to later deal windows.
No clear regional spillover beyond US-listed SPAC investor sentiment.
Limited global relevance; primarily affects EURK’s capital structure and timeline.
Counterpoint
Because the extension fee and note principal are very small, the market may treat this as routine SPAC housekeeping rather than a meaningful catalyst.
Key entities
- companyEureka Acquisition Corp
SPAC issuer filing the 8-K and extending its business-combination deadline via trust deposit and extension note.
- counterpartyMarine Thinking Inc.
Canada-incorporated entity that funded the monthly extension fee and holds the extension note with optional conversion rights.
- subsidiary17358750 Canada Inc.
Wholly owned subsidiary of Eureka referenced in the business combination agreement.


