Welcome to our dedicated page for Cayson Acquisition SEC filings (Ticker: CAPN), 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.
The SEC filings for Cayson Acquisition Corp (NASDAQ: CAPN) provide detailed insight into its structure and progress as a special purpose acquisition company. As a Cayman Islands exempted blank check company, Cayson files registration statements, prospectuses, annual reports, and current reports that describe its IPO terms, trust account, rights structure, and search for a business combination partner.
Key documents include the registration statement and final prospectus related to its initial public offering of units, each consisting of one ordinary share and one right to receive one tenth of an ordinary share upon completion of an initial business combination. Form 8-K filings report material events such as the execution of an Agreement and Plan of Merger with Mango Financial Group Limited and related entities, the creation of direct financial obligations through promissory notes, and changes in the composition of the Board of Directors and its committees.
Recent 8-K filings describe loans from Cayson Holding LP, the SPAC’s sponsor, and from Mango Financial Limited. These loans are deposited into the trust account to extend the deadline for completing an initial business combination, and are repayable upon consummation of such a transaction. Other disclosures in these filings outline the planned Form F-4 registration statement that will include a proxy statement for Cayson shareholders and a prospectus for Mango Group, providing comprehensive information on the proposed business combination.
On this page, investors can review Cayson’s Forms 8-K, 10-K, S-1, and, when available, the Form F-4 related to the Mango Group transaction. AI-powered summaries help explain the significance of complex filings, highlight key terms in the merger agreement, and clarify the implications of trust account extensions and promissory notes. Real-time updates from EDGAR, along with access to exhibits such as promissory notes, allow users to monitor how Cayson manages its obligations and advances its proposed business combination.
Feis Equities LLC and Lawrence M. Feis filed an amended Schedule 13G reporting a significant passive stake in Cayson Acquisition Corp. They beneficially own 769,472 ordinary shares, representing 9.83% of the company’s ordinary shares.
The ownership percentage is based on 7,830,000 ordinary shares outstanding as of November 12, 2025, as reported by Cayson Acquisition Corp in a prior quarterly report. The filing states the securities were not acquired and are not held for the purpose of changing or influencing control of the company.
Cayson Acquisition Corp. disclosed that, effective December 17, 2025, Mango Financial Limited loaned the SPAC $600,000. The funds will be placed into the SPAC’s trust account to extend the deadline to complete an initial business combination from December 23, 2025 to March 23, 2026.
The loan is documented by a promissory note, bears no interest, and is repayable in full only if a business combination is consummated. The filing also reiterates that Cayson has a pending merger agreement with Mango Financial Group Limited and related entities and that a registration statement on Form F-4, including a proxy statement and prospectus, will be filed for shareholder approval of the proposed business combination.
Cayson Acquisition Corp reports that, effective December 17, 2025, Mango Financial Limited loaned the SPAC $600,000. The funds will be deposited into the SPAC’s IPO trust account to extend the deadline to complete an initial business combination from December 23, 2025 to March 23, 2026.
The loan is documented by a promissory note, bears no interest, and is repayable in full upon consummation of a business combination. The report also reminds investors that the SPAC previously signed a Merger Agreement with Mango Financial Group Limited, North Water Investment Group Holdings Limited and Mango Temp Limited for a proposed business combination.
Cayson Acquisition Corp. (CAPN) filed a Form 3 reporting the initial beneficial ownership of director Sanxin Yan. The filing states no securities are beneficially owned. The event requiring the statement occurred on 10/10/2025, and the form was filed by one reporting person.
Cayson Acquisition Corp. appointed Sanxin Yan to its Board of Directors. Effective October 10, 2025, he also joined the Audit Committee and Compensation Committee. The company stated there is no arrangement or understanding with any person regarding his appointment, and he has no direct or indirect material interest in any transaction requiring disclosure under Item 404(a) of Regulation S‑K. Mr. Yan will execute the company’s standard indemnification agreement.
Yan brings over 25 years of leadership experience, including roles as Chairman at Hong Kong Joyful Bird International Capital Corporation Limited (since May 2024) and US Starlines LLC (since October 2023), and CEO roles at Gold Mountain Winery, Inc. (since December 2011) and Hong Kong Starlines Corporation Limited (since October 2001). He holds a Bachelor of Arts from Wuhan University.
Cayson Acquisition Corp disclosed that Mango Financial Limited and related parties loaned the SPAC a total of $600,000 to extend the SPAC's deadline to complete an initial business combination from September 23, 2025 to January 23, 2026. The loans will be deposited into the SPAC's trust account established in connection with its initial public offering.
The loans are evidenced by promissory notes that bear no interest and are repayable in full only upon the consummation of a business combination. The disclosure includes exhibit references and is signed by Yawei Cao, Chief Executive Officer, with the filing dated September 18, 2025.