---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-25-103477"
form_type: "8-K"
ticker: "CSTAF"
cik: "0001834032"
company_name: "Constellation Acquisition Corp I"
filed_at: "2025-10-29T23:59:59+00:00"
generated_at: "2026-05-17T01:42:41.042768+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.2
calibrated_materiality_score: 0.2
confidence: "high"
source: SEC EDGAR
---

# Constellation Acquisition Corp I draws $5,000 to extend business combination deadline to Nov 29, 2025

## Summary
- Drew $5,000 under unsecured promissory note from sponsor to deposit into trust account for extension.
- Deadline extended from October 29, 2025 to November 29, 2025 (9th of 11 allowed one-month extensions).
- Note bears no interest, matures upon business combination; repayment only from funds outside trust if no deal.

## SEC filing metadata
- accession: 0001213900-25-103477
- form_type: 8-K
- ticker: CSTAF
- cik: 0001834032
- company_name: Constellation Acquisition Corp I
- filed_at: 2025-10-29T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.2
- calibrated_materiality_score: 0.2
- confidence: high
- sec_items: 2.03
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1834032/000121390025103477/0001213900-25-103477-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1834032/000121390025103477/ea0262441-8k_constellation1.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-25-103477
- JSON: https://secwatch.observer/filing/0001213900-25-103477.json
- Plain text: https://secwatch.observer/filing/0001213900-25-103477.txt

## Key facts
- Debt Financings
  Constellation Acquisition Corp I incurred loan of $5,000 with Constellation Sponsor LP at does not bear interest maturing upon closing of the Company's initial business combination.
  - Instrument: loan
  - Principal: $5,000
  - Counterparty: Constellation Sponsor LP
  - Rate: does not bear interest
  - Maturity: upon closing of the Company's initial business combination
  - Event: incurrence
  source text: On October 28, 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 October 24, 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/1834032/000121390025103477/0001213900-25-103477-index.htm

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