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Oceanhawk Acquisition Corp. has a significant shareholder group led by Adage Capital Management, L.P. and its principals Robert Atchinson and Phillip Gross. These reporting persons collectively report beneficial ownership of 1,075,000 Class A Ordinary Shares of Oceanhawk Acquisition Corp.
This position represents 5.68% of the 18,930,000 Class A Ordinary Shares outstanding, based on the company’s referenced prospectus and current report after completion of the offering, private placement and full exercise of the underwriters' over-allotment option. The reporting persons have shared voting and shared dispositive power over all 1,075,000 shares, and no sole voting or dispositive power.
The Goldman Sachs Group, Inc. and Goldman Sachs & Co. LLC report a significant ownership position in OceanHawk Acquisition Corp. Class A ordinary shares. They report beneficial ownership of 1,479,187 Class A shares, representing 7.8% of the class as of June 30, 2026. Both entities report 0 shares with sole voting or dispositive power and 1,479,187 shares with shared voting and shared dispositive power, indicating the position is held on a shared-control basis within the Goldman Sachs structure. The securities are reported by The Goldman Sachs Group, Inc. as a parent holding company, with Goldman Sachs & Co. LLC identified as the broker-dealer and investment adviser subsidiary through which the position is beneficially owned.