JAB Acquisition Corp I is a blank check company formed to effect a merger, share exchange, asset acquisition, stock purchase or similar business combination with one or more businesses; it offers public units, Class A ordinary shares, redeemable warrants and rights, with each right entitling the holder to receive one-fourth of one Class A ordinary share upon consummation of its initial business combination. Founded in 2026 and headquartered in New York, New York, the company targets an unspecified operating business or businesses, with its securities listed on Nasdaq under symbols including ATLQR for the rights. In August 2026, the company began separate trading of the securities underlying its initial public offering units, allowing the Class A ordinary shares, rights and warrants to trade independently; effective August 31, 2026, it also changed its Nasdaq symbols, with rights moving to ATLQR and the company’s shares and other securities adopting new tickers. The company completed a $172.5 million initial public offering in 2026, including full exercise of the underwriters’ over-allotment option, and continues to operate as a special purpose acquisition company seeking a business combination.