---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-26-104667"
form_type: "8-K"
ticker: "CSTAF"
cik: "0001834032"
company_name: "Constellation Acquisition Corp I"
filed_at: "2026-09-29T20:15:28+00:00"
generated_at: "2026-10-12T13:49:33.951214+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.12
calibrated_materiality_score: 0.12
confidence: "high"
source: SEC EDGAR
---

# Constellation Acquisition Corp I draws $5,000 from sponsor note, extends deal deadline to Oct 29, 2026

## Summary
- Drew $5,000 under the unsecured promissory note dated January 30, 2024 between the Company and Constellation Sponsor LP, deposited into the trust account for public shareholders.
- Deposit extends the deadline to complete an initial business combination from September 29, 2026 to October 29, 2026.
- The extension is the eighth of eleven one-month extensions permitted under the amended and restated memorandum and articles of association.
- The note bears no interest and matures on closing of the business combination; absent a deal it is repaid only from amounts remaining outside the trust account.
- The extension committee of the board approved the draw by unanimous resolution dated September 25, 2026; CEO Chandra R. Patel signed the report.

## SEC filing metadata
- accession: 0001213900-26-104667
- form_type: 8-K
- ticker: CSTAF
- cik: 0001834032
- company_name: Constellation Acquisition Corp I
- filed_at: 2026-09-29T20:15:28+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.12
- calibrated_materiality_score: 0.12
- confidence: high
- sec_items: 2.03
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1834032/000121390026104667/0001213900-26-104667-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1834032/000121390026104667/ea0307038-8k_constellation1.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-26-104667
- JSON: https://secwatch.observer/filing/0001213900-26-104667.json
- Plain text: https://secwatch.observer/filing/0001213900-26-104667.txt

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