Welcome to our dedicated page for Horizon Space Acquisition II SEC filings (Ticker: HSPT), 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.
Horizon Space Acquisition II Corp. SEC filings document its status as a Cayman Islands blank-check issuer and the securities used in its SPAC structure. The record includes Form 8-K material-event reports covering material definitive agreements, direct financial obligations, charter amendment and deadline-extension matters, shareholder votes, governance topics, and capital-structure disclosures for ordinary shares, units, and rights listed under HSPT, HSPTU, and HSPTR. Filings also include annual-report timing notices and disclosure categories such as operating results, financial condition, risk factors, and emerging growth company status.
Horizon Space Acquisition II Corp. received an amended Schedule 13G filing from ATW SPAC Management LLC, Kerry Propper, and Antonio Ruiz-Gimenez reporting that they now beneficially own 0 ordinary shares of the company. The filing states that each reporting person holds 0.0% of the class and has no sole or shared voting or dispositive power over any ordinary shares. The reporting persons expressly disclaim beneficial ownership of any securities previously reported, except to the extent of any pecuniary interest.
W. R. Berkley Corporation filed an amended Schedule 13G reporting that it is no longer a beneficial owner of Horizon Space Acquisition II Corp. ordinary shares. The filing states beneficial ownership of 0 shares, representing 0% of the class, with no sole or shared voting or dispositive power.
The amendment also identifies Berkley Insurance Company as a related entity, likewise reporting 0 shares and 0% ownership. The filing indicates that W. R. Berkley now has ownership of 5 percent or less of this class of securities.
Horizon Space Acquisition II Sponsor Corp. and Mingyu Li have filed Amendment No. 1 to their Schedule 13D to report that they no longer own any shares of Horizon Space Acquisition II Corp. (HSPT). The cover pages show 0 shares beneficially owned and 0% of the ordinary share class.
The change follows the June 12, 2026 business combination in which HSPT and SL Bio Ltd. became subsidiaries of SL Science Holding Limited (PubCo). In that transaction, each HSPT ordinary share was cancelled and exchanged for one PubCo ordinary share, and the sponsor ceased to hold any HSPT securities. This amendment is characterized as a final, "exit" filing for the reporting persons.
Horizon Space Acquisition II Corp. director and Chief Executive Officer Li Mingyu filed a Form 4 as a ten percent owner, but the filing reports no insider transactions. All buy, sell, acquire, dispose, and derivative transaction counts are zero, indicating no changes in reported holdings in this period.
Horizon Space Acquisition II Corp. director Cai Tianchen filed a Form 4 that reports no equity transactions for the period covered. The filing shows no open-market purchases or sales, no derivative exercises, and no gifts or restructurings, indicating Cai’s reported holdings did not change in this timeframe.
Horizon Space Acquisition II Corp. filed a Form 4 listing Chief Financial Officer Zhai Min as a reporting person. The provided data show no reportable insider purchases, sales, option exercises, or other equity transactions, and no holdings or derivative positions are detailed in this excerpt.
Horizon Space Acquisition II Corp. director Xu Qian filed a Form 4 reporting no insider trading activity. The filing shows no common stock or derivative transactions, no shares bought or sold, and no option exercises, gifts, tax withholdings, or restructurings during the reported period.
Horizon Space Acquisition II Corp. filed a Form 25 notifying the Nasdaq Stock Market LLC of the removal of its Ordinary Shares, Rights and Units from listing and/or registration under Section 12(b) of the Securities Exchange Act of 1934. The filing states both the Exchange and the issuer complied with the rules governing withdrawal.
Horizon Space Acquisition II Corp. reported a small net loss of $29,122 for the quarter ended March 31, 2026, as interest income of $588,076 on its Trust investments was more than offset by formation and operating costs of $364,905 and interest expense of $252,293.
The SPAC redeemed 3,219,311 ordinary shares for $34,221,276, reducing the Trust Account to $39,390,860 and leaving a working capital deficit of $1,784,554. It continues to pursue the SL Bio business combination, supported by a $7,800,000 PIPE and multiple extension deposits, but management discloses substantial doubt about the company’s ability to continue as a going concern if a deal is not completed by the current deadline.