Welcome to our dedicated page for Eureka Acquisition SEC filings (Ticker: EURK), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Eureka Acquisition Corp filings document the regulatory record of a Cayman Islands blank-check company with Nasdaq-listed units, Class A ordinary shares, and rights. Its current reports describe material definitive agreements, capital-structure terms, trust-account and extension mechanics, shareholder-vote matters, and written communications filed under Securities Act Rule 425.
The company’s filings also disclose SPAC governance matters, emerging growth company status, registered security classes, and listing-compliance events. These records center on the issuer’s blank-check purpose, redemption framework, rights structure, and public-company obligations before completion of an initial business combination.
Eureka Acquisition Corp reported the deposit of $8,253.03 into its trust account to extend the deadline to complete its initial business combination by one month, from July 3, 2026 to August 3, 2026. The payment was made by Marine Thinking Inc. and in exchange the company issued an unsecured, no-interest promissory note dated July 7, 2026 (the "Extension Note").
The Extension Note is payable on the earlier of consummation of the business combination or the company’s term expiry, is convertible at Marine Thinking’s election into Units at $10.00 per Unit, and includes customary default and acceleration provisions.
Eureka Acquisition Corp entered into a financing arrangement to extend the deadline for completing its initial business combination. Under its charter, the company can extend the completion deadline from July 3, 2026 up to July 3, 2027 in one-month increments by depositing a $8,253.03 Monthly Extension Fee into its trust account. On July 6, 2026, $8,253.03 was deposited, extending the deadline from July 3, 2026 to August 3, 2026.
The fee was funded by Marine Thinking Inc. under an existing business combination agreement. In return, Eureka issued Marine Thinking an unsecured promissory note dated July 7, 2026 for $8,253.03, bearing no interest and payable on the earlier of the business combination closing or the company’s term expiry. Marine Thinking may convert the note into private units at $10.00 per unit, each unit consisting of one Class A ordinary share and a right to receive one-fifth of a Class A ordinary share after a business combination, subject to transfer restrictions and registration rights.
Eureka Acquisition Corp. ownership update: an Amendment No. 1 Schedule 13G/A names Wolverine Asset Management, LLC, Wolverine Holdings, LLC, Christopher L. Gust and Robert R. Bellick and reports they each have 0 Class A Ordinary Shares beneficially owned (0%). The filing lists CUSIP G32168109 and shows signature dates of 07/09/2026, with the form referencing 07/06/2026.
Wolverine Flagship Fund Trading Limited, an entity associated with several former 10% owners of Eureka Acquisition Corp, elected to redeem 395,924 Class A Ordinary Shares for cash in connection with the company’s special meeting of stockholders on June 29, 2026. The estimated redemption price is approximately $11.44 per share, and the reporting persons plan to amend the filing if the final price is materially different. Following this redemption-related transaction, the indirect reported holdings of these shares were reduced to 0 shares, and the reporting persons disclaim beneficial ownership except to the extent of any pecuniary interest.
Eureka Acquisition Corp reported shareholder approval to extend its deadline to complete a business combination to July 3, 2026, with the option of up to twelve additional one‑month extensions to July 3, 2027. Each Monthly Extension requires a $8,253.03 deposit into the company’s trust account. If a Monthly Extension Fee is not paid and remains unpaid after a 30‑day Cure Period, the company must cease operations other than winding up and proceed to liquidate and dissolve.
Shareholders also approved the engagement of Marcum Asia CPAs LLP as auditor for the year ending September 30, 2026. In connection with the charter amendment vote, holders of 2,655,132 Class A ordinary shares elected redemption, leaving 733,101 Class A and 1,437,500 Class B ordinary shares outstanding.
Eureka Acquisition Corp entered into Amendment No. 1 to its Business Combination Agreement with Marine Thinking Inc. and its wholly owned subsidiary on June 12, 2026, revising section 5.19 to change the requirements for the SPAC's post-closing directors.
The amendment leaves the remainder of the agreement unchanged and is filed as Exhibit 2.1; the prior business combination agreement was originally executed on October 29, 2025.
Eureka Acquisition Corp filed a current report describing an amendment to its previously announced business combination agreement with Marine Thinking Inc. and its wholly owned Amalgamation Sub. The original agreement was signed on October 29, 2025 under the Canada Business Corporations Act framework.
On June 12, 2026, the parties executed Amendment No. 1, which changes section 5.19 of the agreement to revise the requirements for the post-closing directors of Eureka Acquisition Corp. All other terms of the business combination agreement remain unchanged and in full force. The complete amendment text is filed as Exhibit 2.1 to this report.
Eureka Acquisition Corp is filing an amended Form S-4/A and preliminary proxy/prospectus to effect a business combination with Marine Thinking Inc. The proxy/prospectus registers up to 19,540,264 common shares of Marine Thinking to be issued at closing. The transactions include a legal continuance of Eureka from the Cayman Islands to Canada (the "SPAC Continuance"), an amalgamation of Marine Thinking with an SPAC subsidiary and conversion mechanics that fix the number of Pubco Class A Shares to be issued to Marine Thinking at 13,120,231 shares. The proxy outlines shareholder proposals for approval of governance changes (including an amendment to the net tangible asset threshold), the business combination agreement (as amended June 12, 2026), director appointments, a Pubco equity plan reserving 15% of fully diluted shares, Nasdaq listing actions, and related items. TheSponsor (Hercules Capital Management Corp) and insiders hold founder/private positions representing a meaningful pre-closing stake; pro forma tables show total Pubco Class A Shares outstanding at Closing of 19,540,264 under the no-redemption scenario. Redemption mechanics, multiple dilution/redemption scenarios, and pro forma net tangible book value analyses are disclosed in detail.
Eureka Acquisition Corp is calling a June 29, 2026 shareholder meeting to vote on extending the life of its SPAC, approving its auditor, and allowing a possible adjournment. The key Charter Amendment Proposal would move the deadline to complete a business combination to July 3, 2026, with up to twelve one‑month extensions to July 3, 2027, funded by a Monthly Extension Fee of the lesser of $15,000 or $0.03 per remaining public share paid into the trust.
The extension is intended to give more time to close Eureka’s planned business combination with Marine Thinking Inc., an autonomous ship and fleet solutions company, or another deal. Public shareholders may redeem their Class A shares in connection with the amendment for an estimated $11.42 per share based on the trust value as of the record date, compared with a $12.89 Nasdaq trading price. The trust held about $33.46 million at the record date, and there were 3,388,233 Class A and 1,437,500 Class B shares outstanding. Initial shareholders hold 1,665,500 shares, or 34.51%, and plan to vote for all proposals.
Eureka Acquisition Corp issued an unsecured promissory note for $150,000 to Marine Thinking Inc. to reimburse a monthly extension fee deposited into the Company’s trust account, thereby extending the deadline to complete its initial business combination by one month to July 3, 2026. The Extension Note is interest-free and matures upon either consummation of the business combination or the Company’s term expiry. Marine Thinking has a conversion right to receive Units at $10.00 per Unit by delivering conversion notice at least two business days prior to closing. The Note contains customary default events and conversion mechanics.