Constellation Acquisition Corp I 8-K

What Happened

• Constellation Acquisition Corp I (CSTAF) filed an 8-K reporting a Second Amendment, dated March 18, 2026, to its unsecured promissory note with Constellation Sponsor LP.
• The promissory note, originally issued January 29, 2024, and previously amended June 5, 2025, was increased from $2,250,000 to $5,250,000. The note bears no interest and matures upon the closing of the Company’s initial business combination.

Key Details

• Original promissory note issued Jan 29, 2024 for $1,660,000 to Constellation Sponsor LP.
• First amendment (June 5, 2025) increased principal to $2,250,000.
• Second Amendment (Mar 18, 2026) increases principal by $3,000,000 to a total of $5,250,000.
• The obligation is unsecured, non‑interest bearing, and payable when the SPAC closes its initial business combination.

Why It Matters

• This amendment increases the Company’s related-party debt obligation, which is a material change to its liabilities until the initial business combination closes.
• Retail investors should note the amount, the related-party nature (owed to the sponsor), and that the obligation does not accrue interest but remains a direct financial obligation on the Company’s balance sheet.