Constellation Acquisition Corp I Extends SPAC Deadline with $5,000 Sponsor Loan

What Happened
Constellation Acquisition Corp I (CSTAF) filed an 8-K (Item 2.03) reporting that on September 25, 2026 its board’s extension committee unanimously approved and the company drew $5,000 (the “Extension Funds”) under an unsecured promissory note with Constellation Sponsor LP. The Company deposited the $5,000 into its trust account for public shareholders to extend the deadline to complete its initial business combination from September 29, 2026 to October 29, 2026.

Key Details

• The Extension Funds were drawn on September 25, 2026 under the unsecured promissory note dated January 30, 2024 between the Company and Constellation Sponsor LP.
• The extension to October 29, 2026 is the eighth of up to eleven one‑month extensions permitted under the Company’s amended and restated memorandum and articles of association.
• The Note does not bear interest and matures upon closing of the Company’s initial business combination.
• If the Company does not consummate a business combination, the Note will be repaid only from amounts remaining outside the Company’s trust account, if any.

Why It Matters
For investors, this is a routine sponsor-funded extension that gives the SPAC one more month to find and close a deal without liquidating. The $5,000 amount is small and typical for SPAC extension funding; the promissory note is unsecured, interest‑free, and repayment (if required) would not come from the trust account funds held for public shareholders. This action preserves the trust account balance for another month and signals the sponsor’s willingness to finance additional extension periods within the terms allowed by the company charter.