Yorkville Acquisition amends sponsor working-capital note to $500,000

Yorkville Acquisition Corp. amended and restated its working capital financing with Yorkville Acquisition Sponsor, lifting the convertible unsecured promissory note to $500,000.

The note carries no interest. It is due at the earlier of the initial business combination or the company’s winding up.

The sponsor advanced an additional $250,000 on May 4, 2026. The prior $250,000 note was issued on Feb. 11, 2026.

Upon a business combination, the sponsor can convert principal at $10 per unit into up to 50,000 private placement-style units.

Each unit includes one Class A share plus one-third of a redeemable warrant. Whole warrants have an $11.50 exercise price.