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.
The SEC filings for Horizon Space Acquisition II Corp. (HSPT) provide detailed insight into its activities as a Cayman Islands exempted special purpose acquisition company (SPAC) listed on Nasdaq. Through current reports on Form 8-K, annual reports on Form 10-K, and other submissions, the company discloses material agreements, financing arrangements, and progress toward completing its initial business combination.
For HSPT, key filings include Form 8-K reports describing unsecured promissory notes issued to its sponsor or sponsor designees. These notes bear no interest, are repayable upon the earlier of the consummation of a business combination or the expiry of the company’s term, and may be convertible into private units at a price referenced to $10.00 per unit. The filings explain the composition of these private units, which can include ordinary shares, rights to receive fractions of ordinary shares, and, in some cases, warrants.
Another important aspect of Horizon Space Acquisition II Corp.’s filings is the disclosure of its ability to extend the deadline to complete its initial business combination. The company’s charter allows for extensions when specified extension fees are deposited into the trust account for public shareholders. Form 8-K filings describe these extension payments and the related promissory notes, outlining how the SPAC manages its timeline to pursue a suitable transaction.
Filings also cover the definitive Business Combination Agreement with SL Bio Ltd. and the creation of SL Science Holding Limited (PubCo) as the proposed listed entity. Investors can review registration statements and proxy materials referenced in public announcements to understand the structure of the proposed mergers, the exchange of securities into PubCo ordinary shares, and the conditions required for closing.
On this page, users can access Horizon Space Acquisition II Corp.’s SEC filings as they are made available through EDGAR. AI-powered summaries can help explain complex sections of documents such as Form 8-K, Form 10-K, and registration statements, highlight the terms of promissory notes and extension arrangements, and clarify how the proposed business combination with SL Bio Ltd. is structured. Form 4 and related ownership filings, when present, can also be reviewed to understand changes in holdings of HSPT securities.
Horizon Space Acquisition II Corp. is postponing its extraordinary general meeting to approve its proposed business combination with SL BIO Ltd. The meeting, originally set for February 3, 2026, is now scheduled for February 12, 2026, at 9:00 a.m. Eastern Time to allow more engagement with shareholders.
The record date remains December 29, 2025, so only shareholders of record on that date may vote. Proxies already submitted remain valid unless changed. The deadline for public shareholders to submit redemption requests is extended to 5:00 p.m. Eastern Time on February 10, 2026. The meeting location, agenda, and proposals are unchanged.
Horizon Space Acquisition II Corp. postponed its extraordinary general meeting of shareholders to February 12, 2026 at 9:00 a.m. Eastern Time to allow more time to engage with shareholders about its proposed business combination with SL BIO Ltd.
The record date of December 29, 2025, meeting location in New York and virtually via teleconference, and all proposals remain unchanged. The deadline for public shareholders to submit redemption requests is now 5:00 p.m. Eastern Time on February 10, 2026.
Horizon Space Acquisition II Corp. (HSPT) has postponed its extraordinary general meeting to approve the proposed business combination with SL BIO Ltd. The meeting, originally set for February 3, 2026, is rescheduled to February 12, 2026 at 9:00 a.m. Eastern Time to allow more time to engage with shareholders.
The record date remains December 29, 2025, so only shareholders of that date may vote. The deadline for public shareholders to submit redemption requests is extended to 5:00 p.m. Eastern Time on February 10, 2026. The meeting location and all proposals in the previously mailed definitive proxy statement are unchanged.
Horizon Space Acquisition II Corp. is asking shareholders to approve amendments to its governing documents and trust agreement to extend the deadline to complete a business combination. If the MAA Amendment Proposal and Trust Amendment Proposal pass, the company could extend its termination date month by month up to February 18, 2027, with the sponsor depositing the lesser of
HSPT has a signed business combination agreement with SL BIO Ltd. via a new holding company, with that deal scheduled for a separate shareholder vote on
Horizon Space Acquisition II Corp. filed a Form 8-K related to its proposed business combination with SL BIO Ltd., updating details in its definitive proxy statement for the February 3, 2026 extraordinary general meeting. The filing corrects references to the trust account trustee, confirming Wilmington Trust, National Association, and clarifies contact details for the proxy solicitor Advantage Proxy, Inc. and transfer agent VStock Transfer, LLC.
The update restates shareholders’ redemption rights, including that public shareholders may redeem their shares for cash based on funds in the trust account, with a redemption deadline of 5:00 pm Eastern Time on January 30, 2026. It explains how unit holders must separate units, the DWAC and physical certificate processes, and notes that significant redemptions could reduce liquidity and potentially affect Nasdaq listing standards for the post-merger PubCo, though Nasdaq listing approval remains a condition to closing the business combination.
Horizon Space Acquisition II Corp. filed a Form 8-K to update its definitive proxy materials for the proposed business combination with SL BIO Ltd. The filing corrects references to key service providers, confirming Wilmington Trust, National Association as trustee of the SPAC’s trust account and VStock Transfer, LLC as the transfer agent handling share deliveries and redemptions.
The updated language explains how public shareholders can redeem their shares for cash from the trust account in connection with the February 3, 2026 extraordinary general meeting, including the requirement to submit a written request and deliver shares to VStock two business days before the vote, by 5:00 pm Eastern Time on January 30, 2026. It also notes that rights have no redemption feature and warns that significant redemptions could reduce liquidity and may affect the combined company’s ability to meet Nasdaq listing standards, even if the business combination is approved.
Horizon Space Acquisition II Corp. updated details for its planned business combination with SL BIO Ltd. and the related shareholder vote. The company corrected references in its definitive proxy materials to show Wilmington Trust, National Association as trustee of the SPAC trust account, Advantage Proxy, Inc. as proxy solicitor, and VStock Transfer, LLC as transfer agent and redemption contact.
The extraordinary general meeting to vote on the business combination remains set for February 3, 2026, with a redemption election deadline of 5:00 p.m. Eastern Time on January 30, 2026. Public shareholders may redeem shares for cash from the trust account regardless of how they vote, but significant redemptions could reduce liquidity in the post‑merger company’s shares and may affect the ability to meet Nasdaq listing standards.
Horizon Space Acquisition II Corp. describes updates to its proxy materials for the proposed business combination with SL BIO Ltd. The company clarifies that the SPAC trust account is maintained by Wilmington Trust, National Association as trustee and provides corrected contact information for its proxy solicitor, Advantage Proxy, Inc., and transfer agent, VStock Transfer, LLC.
The 8-K restates how public shareholders can redeem their shares in connection with the business combination, including that each public share may be redeemed for cash equal to the funds in the trust account divided by the public shares outstanding. The Redemption Deadline is 5:00 pm Eastern Time on January 30, 2026, two business days before the Extraordinary Meeting scheduled for February 3, 2026
Horizon Space Acquisition II Corp. is soliciting shareholder approval for a business combination with SL Bio, tied to a prospectus for up to 567,018,150 PubCo ordinary shares. The deal will be executed through two mergers that make both HSPT and SL Bio wholly owned subsidiaries of SL Science Holding Limited (PubCo), whose ordinary shares are expected to list on Nasdaq under “SLBT.” SL Bio is valued at $5.568 billion, with SL Bio shareholders and HSPT investors receiving PubCo stock based on agreed exchange mechanics and any redemptions.
HSPT public shareholders may redeem their shares for cash from the trust account (about $10.53 per share as of December 29, 2025), subject to a 15% cap for any one holder or group. The sponsor will convert founder and private securities into PubCo shares and is expected to hold less than 1% of PubCo voting power, while SL Bio’s CEO William Wang is expected to control about 59%, making PubCo a “controlled company” and a foreign private issuer with more flexible U.S. governance and reporting requirements.
SL Science Holding Limited is registering up to 567,018,150 PubCo Ordinary Shares in connection with its proposed business combination with Horizon Space Acquisition II Corp. (HSPT) and SL BIO Ltd. The deal uses a two-step merger where HSPT and SL Bio each become wholly owned subsidiaries of a Cayman holding company, PubCo, with all HSPT and SL Bio equity holders receiving PubCo Ordinary Shares.
The SL Bio equity is valued at $5.568 billion, based on $10.00 per share. PubCo expects to list its shares on Nasdaq under the symbol “SLBT.” HSPT public shareholders can redeem their shares for cash at a pro rata trust value, which was approximately $10.53 per share as of December 29, 2025, versus a market price of $10.55.
The parties will use reasonable best efforts to secure at least $5,000,000 in equity Transaction Financing, although no commitments have been received. Sponsor economics include founder and private shares and potential units from up to $2,500,000 of working capital loans, but the sponsor is expected to hold under 1% of PubCo voting power. After closing, CEO William Wang is expected to control about 59% of voting power, making PubCo a “controlled company” and a foreign private issuer with more flexible governance and reporting requirements than a typical U.S. domestic issuer.
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