Every 8-K that Eureka Acquisition Corp Unit (EURKU) has filed with the SEC in the last 24 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A 8-K covers material events a company has to report between its quarterly reports, so if you follow EURKU and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full EURKU filings page.
Eureka Acquisition Corp extended the deadline to complete its initial business combination by one month, from August 3, 2026 to September 3, 2026, by depositing a $8,253.03 Monthly Extension Fee into its trust account, as permitted under its charter.
The fee was paid on August 3, 2026 by Marine Thinking Inc. under an existing business combination agreement, and Eureka issued Marine Thinking an unsecured Extension Promissory Note for $8,253.03. The note bears no interest and is due on the earlier of consummation of the business combination or the company’s expiry. Marine Thinking may elect to 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 share upon completion of a business combination. The company has filed a Form S-4 registration statement that includes a proxy statement/prospectus for the proposed transaction with Marine Thinking.
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 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 entered into a new financing arrangement to extend the time it has to complete its initial business combination. Marine Thinking Inc. deposited $150,000 into Eureka’s trust account, allowing the deadline to move from June 3, 2026 to July 3, 2026.
In return, Eureka issued a $150,000 unsecured, non‑interest‑bearing Extension Promissory Note to Marine Thinking, payable at the earlier of completing a business combination or the company’s expiry date. Marine Thinking may instead convert the note into private units at $10.00 per unit, each unit consisting of one Class A share and a right to receive one‑fifth of a Class A share after a business combination.
Eureka Acquisition Corp reported that Nasdaq has granted more time to fix its shareholder base issue. On June 5, 2026, the company received a letter from Nasdaq’s Listing Qualifications Department extending its deadline to comply with Nasdaq Listing Rule 5550(a)(3), the Minimum Public Holders Rule, until October 3, 2026.
The company had previously been notified that it failed to meet this requirement and submitted a compliance plan on April 20, 2026. This extension gives Eureka additional time to regain compliance and maintain its Nasdaq listing, but underscores ongoing pressure to increase the number of public holders.
Eureka Acquisition Corp entered a financing arrangement to extend the deadline for completing its initial business combination. Marine Thinking Inc. paid a $150,000 Monthly Extension Fee into Eureka’s trust account on May 4, 2026, moving the SPAC deadline from May 3 to June 3, 2026.
In return, Eureka issued Marine Thinking an unsecured, interest-free promissory note for $150,000, due at either the business combination closing or the SPAC’s expiry. Marine Thinking may instead convert the note into private units at $10.00 per unit, each unit consisting of one Class A share and a right to receive one‑fifth of a share after a business combination.
The charter allows further one‑month extensions up to July 3, 2026, subject to additional Monthly Extension Fees. The filing also notes that units issuable upon conversion are subject to transfer restrictions until completion of the business combination and carry registration rights.
Eureka Acquisition Corp entered into a new unsecured promissory note with Marine Thinking Inc. for $150,000 to fund a one-month extension of its deadline to complete an initial business combination.
The payment into the company’s trust account extends the combination date from April 3, 2026 to May 3, 2026. The Extension Note bears no interest and is repayable on the earlier of completing the business combination or the company’s term expiry. Marine Thinking may choose to convert the note into private units at $10.00 per unit, with each unit consisting of one Class A ordinary share and a right to receive one-fifth of a Class A share after a business combination.
Eureka Acquisition Corp reported receiving a Nasdaq notice on April 6, 2026 stating it no longer meets the Nasdaq Capital Market’s Minimum Public Holders Rule, which requires at least 300 public holders. The notice is a deficiency notification only and does not immediately affect trading.
The company has 45 calendar days, until May 21, 2026, to submit a plan to regain compliance. If Nasdaq accepts the plan, Eureka Acquisition could receive up to 180 calendar days from the notice date to demonstrate compliance, or it may appeal if a plan is not accepted.
Eureka Acquisition Corp entered into a new financing arrangement to extend the deadline for completing its initial business combination. Marine Thinking Inc. deposited a $150,000 Monthly Extension Fee into Eureka’s trust account, allowing the business combination deadline to move from March 3, 2026 to April 3, 2026.
In return, Eureka issued Marine Thinking an unsecured, interest-free $150,000 Extension Promissory Note dated March 13, 2026. The note is payable upon either completion of the business combination or expiry of Eureka’s term and may be converted, at Marine Thinking’s option, into Eureka private units at $10.00 per unit, each unit consisting of one Class A ordinary share and one right to receive one-fifth of a Class A share.
Eureka Acquisition Corp extended the deadline to complete its initial business combination from February 3, 2026 to March 3, 2026 by depositing a $150,000 Monthly Extension Fee into its trust account. The fee was paid by its sponsor, Hercules Capital Management Corp.
In return, Eureka issued the sponsor an unsecured $150,000 Extension Promissory Note dated February 4, 2026. The note bears no interest and is due upon the earlier of completing a business combination or the company’s expiry date, and includes standard event-of-default triggers that can accelerate repayment.
The sponsor may choose to convert the principal into private units at $10.00 per unit, with 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. These units, if issued, are restricted from transfer until the business combination and carry registration rights.
Eureka Acquisition Corp filed an update describing how it extended the deadline to complete its initial business combination. Under its charter, the company could extend the deadline in one‑month increments up to July 3, 2026 by depositing a $150,000 Monthly Extension Fee into its trust account.
On September 2, 2025, the sponsor, Hercules Capital Management Corp, deposited $150,000 into the trust account, moving the deadline from September 3, 2025 to October 3, 2025. In return, on September 3, 2025 the company issued a $150,000 unsecured, interest‑free promissory note to the sponsor, due at the earlier of a business combination or the company’s expiry.
The sponsor may choose to convert the note into private units at $10.00 per unit, with each unit consisting of one Class A ordinary share and a right to receive one‑fifth of a Class A share upon completion of a business combination. These units, if issued, are restricted from transfer until the business combination is completed and carry registration rights.
Eureka Acquisition Corp filed an Form 8-K reporting a material event that includes a Sponsor Promissory Note dated August 25, 2025 issued by the company to Hercules Capital Management Corp. The filing lists Exhibit 10.1 as the promissory note and an interactive data cover page embedded in the Inline XBRL document. The document is signed by Fen Zhang, Chief Executive Officer, dated August 26, 2025. The filing discloses the existence of the financing instrument but does not provide the note's principal amount, interest rate, maturity, or other economic terms in the text provided.
Eureka Acquisition Corp. (Nasdaq: EURKU) filed a Form 8-K to announce changes related to its upcoming Extraordinary General Meeting (EGM) and shareholder redemption process.
The company has postponed the EGM from 9:00 a.m. ET on 25 June 2025 to 9:00 a.m. ET on 30 June 2025. The physical venue remains Robinson & Cole LLP, 666 Third Ave., 20th Floor, New York, NY 10017, with the same teleconference dial-in (+1 813-308-9980, Access Code 173547). No changes have been made to the record date, meeting location, or the proposals on which shareholders will vote, including the Charter Amendment Proposal.
Because of the postponement, the deadline for shareholders to submit redemption requests has been extended from 23 June 2025 to 26 June 2025 (two business days before the rescheduled EGM). Redemption instructions should be sent to Continental Stock Transfer & Trust Company.
Management states that the delay will allow additional time to engage with shareholders. A related press release (Exhibit 99.1) is furnished—not filed—and therefore is not incorporated into other Exchange Act filings. Forward-looking statements caution that meeting dates and related deadlines remain subject to change.
Shareholders with questions may contact the company’s proxy solicitor, Advantage Proxy, Inc., at (877) 870-8565 or ksmith@advantageproxy.com.
Key dates
- Original EGM date: 25 Jun 2025
- New EGM date: 30 Jun 2025
- Original redemption deadline: 23 Jun 2025
- New redemption deadline: 26 Jun 2025
No financial statements, earnings data, or business combination details are included in this filing.