---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-26-033581"
form_type: "8-K"
ticker: "HSPT"
cik: "0002032950"
company_name: "Horizon Space Acquisition II Corp."
filed_at: "2026-03-24T23:59:59+00:00"
generated_at: "2026-05-15T09:16:46.001654+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# HSPT secures $7.8M PIPE commitment for SL Bio business combination

## Summary
- PubCo entered subscription agreements for 780,000 units at $10/unit, raising $7.8M.
- Each unit consists of one ordinary share and one Series A preferred share convertible into 1/3 ordinary share after 6 months.
- PIPE closing conditioned on prior or concurrent closing of the business combination with SL Bio.
- PIPE investors agreed to a six-month lock-up on securities from closing date.
- Subscription agreements include customary representations, warranties, and indemnification obligations.

## SEC filing metadata
- accession: 0001213900-26-033581
- form_type: 8-K
- ticker: HSPT
- cik: 0002032950
- company_name: Horizon Space Acquisition II Corp.
- filed_at: 2026-03-24T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 3.02, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2032950/000121390026033581/0001213900-26-033581-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2032950/000121390026033581/ea0283194-8k425_horizon2.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-26-033581
- JSON: https://secwatch.observer/filing/0001213900-26-033581.json
- Plain text: https://secwatch.observer/filing/0001213900-26-033581.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.