---
schema_version: "secwatch.filing_event.v1"
accession: "0001213900-26-009655"
form_type: "8-K"
ticker: "CSTAF"
cik: "0001834032"
company_name: "Constellation Acquisition Corp I"
filed_at: "2026-01-30T23:59:59+00:00"
generated_at: "2026-05-16T06:04:17.191225+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Constellation Acquisition Corp I extends deadline to Feb 2026; trust drops to ~$628K after redemptions

## Summary
- Shareholders approved extension of business combination deadline from Jan 29, 2026 to Feb 28, 2026, with up to 11 additional monthly extensions.
- Sponsor to deposit $5,000 per monthly extension via non-interest bearing promissory notes; initial $5,000 deposited after vote.
- 17,773 Class A ordinary shares redeemed at ~$13.39/share for aggregate ~$238,039; trust balance now ~$628,176.
- Outstanding Class A shares: 7,646,529; only 46,529 held by public shareholders after redemptions.
- Articles amended by filing with Cayman Islands Registrar on January 28, 2026.

## SEC filing metadata
- accession: 0001213900-26-009655
- form_type: 8-K
- ticker: CSTAF
- cik: 0001834032
- company_name: Constellation Acquisition Corp I
- filed_at: 2026-01-30T23:59:59+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/1834032/000121390026009655/0001213900-26-009655-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1834032/000121390026009655/ea0274476-8k_constellation1.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001213900-26-009655
- JSON: https://secwatch.observer/filing/0001213900-26-009655.json
- Plain text: https://secwatch.observer/filing/0001213900-26-009655.txt

## Source-grounded claims
- claim_id: 00e40bdd406642d2c3374b82bbad33b1b494cb43
  claim: Constellation Acquisition Corp I incurred loan of $5,000 with Constellation Sponsor LP (or affiliates, members or third party designees) at non-interest bearing maturing unknown.
  evidence_excerpt: the Sponsor (or one or more of its affiliates, members or third party designees) (the “ Lender ”) shall make a deposit into the trust account established in connection with the Company’s initial public offering (the “ Trust Account ”) of $5,000 pursuant to a non-interest bearing, unsecured promissory note issued by the Company to the Lender
  evidence_url: https://www.sec.gov/Archives/edgar/data/1834032/000121390026009655/0001213900-26-009655-index.htm
- claim_id: 0f89cf48e514c11236b647b849c54d99fb1052de
  claim: Constellation Acquisition Corp I: Extended the deadline to consummate a business combination from January 29, 2026 to February 28, 2026, with option for up to twelve additional monthly extensions without further shareholder vote (effective 2026-01-28).
  evidence_excerpt: On January 27, 2026, the Company held the Shareholder Meeting (A) to amend, by way of special resolution, the Company’s amended and restated memorandum and articles of association (the “ Memorandum and Articles of Association ”) to extend the date (the “ Termination Date ”) by which the Company has to consummate a business combination (the “ Articles Extension ”) from January 29, 2026 (the “ Original Termination Date ”) to February 28, 2026
  evidence_url: https://www.sec.gov/Archives/edgar/data/1834032/000121390026009655/0001213900-26-009655-index.htm

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