Oceanhawk Acquisition Corp. Announces Closing of the Full Exercise of the Over-Allotment Option

Oceanhawk Acquisition Corp. (Nasdaq: OHACU) (the “Company”) today announced that the underwriters of its recently announced initial public offering fully exercised their over-allotment option to purchase an additional 2,400,000 units at the public offering price of $10.00 per unit, bringing the total units sold to 18,400,000, resulting in aggregate gross proceeds to the Company of $184,000,000. The closing of the full exercise of the over-allotment option occurred today, May 27, 2026.

The units began trading on the Nasdaq Stock Market (“Nasdaq”) under the ticker symbol “OHACU” on May 21, 2026. Each unit consists of one Class A ordinary share and one right to receive one-fourth of one Class A ordinary share upon the consummation of an initial business combination. Once the securities comprising the units begin separate trading, the Class A ordinary shares and rights are expected to be listed on Nasdaq under the symbols “OHAC” and “OHACR”, respectively.

The Company, which is led by Chief Executive Officer Ernest Miller, is a blank check company incorporated as a Cayman Islands exempted company whose business purpose is to effect a merger, share exchange, asset acquisition, share purchase, recapitalization, reorganization, or similar business combination with one or more businesses. Mr. Miller has over 25 years of experience in the commodity‑driven energy sector, with a background in financial management, strategic planning and the positioning of complex, capital‑intensive companies. While the Company may pursue an initial business combination in any industry or sector, it intends to focus on high‑potential businesses globally, leveraging the experience and network of the Oceanhawk platform.