Every 8-K that Eureka Acquisition Corp (EURK) 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 EURK 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 EURK filings page.
On October 6, 2026, Eureka Acquisition Corp (EURK) received a Nasdaq letter stating that it had regained compliance with the minimum 300 public holders requirement for continued listing on the Nasdaq Capital Market; Nasdaq said the matter was closed.
Eureka Acquisition Corp (EURK) extended its deadline to complete an initial business combination by one month, from September 3, 2026 to October 3, 2026, following deposit of the $8,253.03 Monthly Extension Fee into its trust account for public shareholders.
Marine Thinking, the proposed business-combination counterparty, paid the fee under its business combination agreement with EURK. EURK issued Marine Thinking an unsecured Extension Note dated October 7, 2026, with $8,253.03 in principal and no interest; the amount is payable in full upon the earlier of completion of the business combination or expiration of EURK’s term. At the payee’s option, the note may be converted in whole or in part into private units at $10.00 per Unit. Each Unit consists of one Class A ordinary share and a right to receive one-fifth of one Class A ordinary share upon completion.
EURK may extend in one-month increments through July 3, 2027, subject to depositing the Monthly Extension Fee for each extension. The note may be accelerated upon specified defaults, including failure to pay principal within five business days of maturity, bankruptcy, breach, cross-defaults, enforcement proceedings, or unlawfulness or invalidity relating to performance.
Eureka Acquisition Corp (EURK) reported that Nasdaq notified it on August 27, 2026 that it is no longer in compliance with two continued listing standards. The company fell below the minimum 500,000 publicly held shares required under Nasdaq Listing Rule 5550(a)(4), and below the $35 million Market Value of Listed Securities threshold under Nasdaq Listing Rule 5550(b)(2) for 30 consecutive business days.
The public float deficiency triggers a 45-day period, until October 12, 2026, for Eureka Acquisition Corp to submit a compliance plan, which may lead to an extension if accepted. For the MVLS deficiency, the company has a 180-day compliance period until February 23, 2027, during which its MVLS must be at least $35 million for a minimum of 10 consecutive business days to regain compliance. Both notices are described as deficiency notifications only and do not immediately affect the current listing or trading of the company’s securities, though failure to regain compliance could ultimately result in delisting, subject to potential appeal rights.
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 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 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 entered into two unsecured promissory notes with its sponsor, Hercules Capital Management Corp, to support its business combination process. On January 2, 2026, the sponsor deposited a $150,000 monthly extension fee into the company’s trust account, allowing Eureka to extend its deadline to complete an initial business combination from January 3, 2026 to February 3, 2026. In return, the company issued a zero-interest Extension Note for $150,000, payable at the earlier of a business combination or the company’s expiry, and convertible at the sponsor’s option 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.
On January 6, 2026, Eureka also issued a zero-interest Sponsor Note in a principal amount of up to $300,000 for general working capital, with similar maturity and default terms and the same optional conversion into units at $10.00 per unit. Any units issued upon conversion of these notes will be restricted from transfer, with limited exceptions, until the completion of the company’s initial business combination and will have registration rights.
Eureka Acquisition Corp (EURK) entered a financing arrangement to extend its SPAC timeline. The company deposited $150,000 into its trust on October 31, 2025, extending the deadline to complete a business combination by one month, from November 3, 2025 to December 3, 2025. Under its charter, the period may be extended monthly, up to July 3, 2026, with each extension requiring a $150,000 deposit.
The deposit was funded by the Sponsor, Hercules Capital Management Corp, in exchange for an unsecured, zero‑interest promissory note dated November 4, 2025, payable upon the earlier of the business combination or the company’s expiry. The Sponsor may convert amounts due into 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 ordinary share upon closing. Any such units would be restricted from transfer until the business combination and carry registration rights. The issuance relies on Section 4(a)(2) of the Securities Act.
Eureka Acquisition Corp (EURK) entered into a Business Combination Agreement with Marine Thinking Inc. The SPAC will deregister from the Cayman Islands and domesticate to Canada, changing its name to Marine Thinking Holdings Inc., then complete an amalgamation in which Marine Thinking becomes a wholly owned subsidiary.
The exchange ratio (the “Amalgamation Multiple”) is based on Total Share Consideration of $130.0 million (plus any net Pre‑IPO investment, capped at $6.5 million) divided by $10.0 per SPAC Class A Share. At closing, each Unit splits into one Class A share and one Right, and each Right converts into one‑fifth of a Class A share; each Class B share converts into one Class A share. Governance post‑closing targets a seven‑member board with six Company designees (including four “independent” and one “financial expert”) and one Sponsor designee.
The parties agreed to support, voting, registration rights, and 365‑day lock‑up arrangements. The BCA includes mutual $2,000,000 termination fee triggers in specified cases. Prior agreements include an option over 583,333 SPAC shares for $1,750,000 (with a $1.00 exercise price for all option securities) and a finder fee payable in shares equal to 3% of Company Valuation divided by the Redemption Price.
Eureka Acquisition Corp filed an 8-K disclosing a material financing-related event: the company issued an Extension Promissory Note dated October 6, 2025 to Hercules Capital Management Corp. The filing lists the promissory note as Item 10.1, indicating a material agreement that modifies or extends the company's payment obligation to a lender. The disclosure is concise and does not include dollar amounts, interest terms, maturity details, or descriptions of operational impacts, so readers are informed that a material debt-related document exists but must consult the exhibit or lender communications for contractual specifics.