Welcome to our dedicated page for Eureka Acquisition SEC filings (Ticker: EURKU), 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's SEC filings document the disclosure framework of a Cayman Islands SPAC with Nasdaq-listed units, Class A ordinary shares and rights. The filings describe its security structure, including units composed of one Class A ordinary share and one right to acquire one-fifth of a Class A ordinary share.
Its regulatory record includes Form 8-K reports for material definitive agreements, Rule 425 written communications, continued-listing notices, shareholder-vote matters, governance disclosures and capital-structure updates. The filings also identify the company as an emerging growth company and provide formal records for trust-account, redemption and business-combination process matters.
Feis Equities LLC and Lawrence M. Feis filed an amended Schedule 13G reporting beneficial ownership of 285,592 Class A ordinary shares of Eureka Acquisition Corp, representing 8.43% of the class. This percentage is based on 3,388,233 Class A shares outstanding as of December 12, 2025.
The reporting persons state they have sole voting and dispositive power over these shares and no shared power. They also certify the holdings were not acquired to change or influence control of Eureka Acquisition Corp.
Feis Equities LLC and Lawrence M. Feis filed an amended Schedule 13G reporting beneficial ownership of 285,592 Class A ordinary shares of Eureka Acquisition Corp, representing 8.43% of the class. This percentage is based on 3,388,233 Class A shares outstanding as of December 12, 2025.
The reporting persons state they have sole voting and dispositive power over these shares and no shared power. They also certify the holdings were not acquired to change or influence control of Eureka Acquisition Corp.
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.
AQR Capital Management, AQR Capital Management Holdings and AQR Arbitrage report beneficial ownership of 179,141 Class A ordinary shares of Eureka Acquisition Corp, representing 5.65% of the class. The three reporting persons disclose shared voting power and shared dispositive power over those shares and each reports zero sole voting or dispositive power, signaling no unilateral control.
The submission is a Schedule 13G amendment including a certification that the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of the issuer. The filing identifies the reporting persons as an investment adviser and a parent holding company, consistent with institutional passive ownership.
Mizuho Financial Group, Inc. filed an amended Schedule 13G disclosing a material passive stake in Eureka Acquisition Corp common shares (CUSIP G32168109). The filing reports beneficial ownership of 550,000 shares, representing 8.9% of the class, with sole voting and dispositive power over those shares.
The submission indicates Mizuho is a parent holding company and notes that Mizuho Securities USA LLC (a wholly owned subsidiary) and related affiliates may be deemed indirect beneficial owners of the securities. The filer certifies the holdings were acquired and are held in the ordinary course of business and not for purposes of changing control. The form is signed by Takahiro Katsura on 08/13/2025 and references an Exhibit A for subsidiary identification.
Eureka Acquisition Corp reported that its trust account holds approximately $60.0 million in investments while available cash for working capital is about $274,174, leaving working capital of $94,338 (excluding public redemptions funded from the trust). During the period, approximately 2,819,767 Class A shares were redeemed, and the company recorded a $29.45 million public shareholder redemption payable drawn from the Trust Account.
The company recognized interest income of $605,749 for the quarter and $1.894 million for the nine months, producing reported net income before accretion. However, accretion of the redeemable shares to redemption value totaled $4.02 million for the nine months, and management discloses substantial doubt about the company’s ability to continue as a going concern absent a business combination or additional financing. The charter was amended to permit monthly one-month extensions (each costing $150,000), and $300,000 of extension fees had been deposited to extend the combination period.