---
schema_version: "secwatch.filing_event.v1"
accession: "0001929980-26-000135"
form_type: "8-K"
ticker: "HSPOF"
cik: "0001946021"
company_name: "Horizon Space Acquisition I Corp."
filed_at: "2026-04-06T23:59:59+00:00"
generated_at: "2026-05-15T07:26:42.224785+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Horizon Space corrects redemption estimate to $12.725/share from $11.66 for proxy vote

## Summary
- Corrected estimated redemption price per public share is $12.725, up from erroneously stated $11.66.
- Redemption now yields ~$0.49 more than $12.24 closing price (previously stated as $0.58 less).
- April 20, 2026 extraordinary meeting unchanged; seeks approval to extend deadline to June 12, 2027.
- Correction filed April 6, 2026 as supplement to definitive proxy statement; other proposals unchanged.

## SEC filing metadata
- accession: 0001929980-26-000135
- form_type: 8-K
- ticker: HSPOF
- cik: 0001946021
- company_name: Horizon Space Acquisition I Corp.
- filed_at: 2026-04-06T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1946021/000192998026000135/0001929980-26-000135-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1946021/000192998026000135/hspo_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001929980-26-000135
- JSON: https://secwatch.observer/filing/0001929980-26-000135.json
- Plain text: https://secwatch.observer/filing/0001929980-26-000135.txt

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