---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-25-008099"
form_type: "8-K"
ticker: "CSTAF"
cik: "0001834032"
company_name: "Constellation Acquisition Corp I"
filed_at: "2025-01-30T23:59:59+00:00"
generated_at: "2026-05-27T05:45:54.920081+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Constellation Acquisition extends deadline to Jan 2026; $27.4M redeemed from trust

## Summary
- Shareholders approved extension of business combination deadline from Jan 29, 2025 to Feb 29, 2025, plus up to 11 monthly extensions to Jan 29, 2026.
- Holders of 2,303,382 Class A shares redeemed at ~$11.91/share for aggregate ~$27.4M; trust balance now ~$770,700.
- Founder Share Amendment allows conversion of Class B to Class A on a one-for-one basis at any time before a business combination.
- Sponsor will deposit $5,000 per monthly extension into trust account under an unsecured promissory note.
- Post-redemption, 7,664,302 Class A shares outstanding; only 64,302 held by public shareholders.

## SEC filing metadata
- accession: 0001213900-25-008099
- form_type: 8-K
- ticker: CSTAF
- cik: 0001834032
- company_name: Constellation Acquisition Corp I
- filed_at: 2025-01-30T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.03, 5.03, 5.07, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1834032/000121390025008099/0001213900-25-008099-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1834032/000121390025008099/ea0228890-8k_constell1.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-25-008099
- JSON: https://secwatch.observer/filing/0001213900-25-008099.json
- Plain text: https://secwatch.observer/filing/0001213900-25-008099.txt

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