---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-25-058606"
form_type: "8-K"
ticker: "CSTAF"
cik: "0001834032"
company_name: "Constellation Acquisition Corp I"
filed_at: "2025-06-27T23:59:59+00:00"
generated_at: "2026-05-18T16:27:33.260953+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Constellation Acquisition Corp I draws $5,000 from sponsor note to extend business combination deadline to July 29, 2025

## Summary
- Drew $5,000 under unsecured promissory note from Constellation Sponsor LP; deposited into trust account for public shareholders.
- Extension moves deadline from June 29, 2025 to July 29, 2025 to complete initial business combination.
- Fifth of eleven possible one-month extensions allowed under amended and restated memorandum and articles of association.
- Note is non-interest bearing, matures upon business combination; repayment only from funds outside trust if no deal.

## SEC filing metadata
- accession: 0001213900-25-058606
- form_type: 8-K
- ticker: CSTAF
- cik: 0001834032
- company_name: Constellation Acquisition Corp I
- filed_at: 2025-06-27T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 2.03
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1834032/000121390025058606/0001213900-25-058606-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1834032/000121390025058606/ea0247222-8k_constell1.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-25-058606
- JSON: https://secwatch.observer/filing/0001213900-25-058606.json
- Plain text: https://secwatch.observer/filing/0001213900-25-058606.txt

## Key facts
- Debt Financings
  Constellation Acquisition Corp I incurred loan of $5,000 with Constellation Sponsor LP maturing upon closing of the Company’s initial business combination.
  - Instrument: loan
  - Principal: $5,000
  - Counterparty: Constellation Sponsor LP
  - Maturity: upon closing of the Company’s initial business combination
  - Event: incurrence
  source text: On June 26, 2025, Constellation Acquisition Corp I (the “Company”) drew an aggregate of $5,000 (the “Extension Funds”), as approved by unanimous resolution of the extension committee of the Company’s board of directors, dated June 26, 2025, pursuant to the unsecured promissory note, dated January 30, 2024 between the Company and Constellation Sponsor LP (the “Note”)
  evidence_url: https://www.sec.gov/Archives/edgar/data/1834032/000121390025058606/0001213900-25-058606-index.htm

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