X0609 4 2026-08-17 0 0002090787 Oceanhawk Acquisition Corp. OHAC 0001521391 Ryan Jon false 515 MADISON AVENUE 8TH FLOOR NEW YORK NY 10022 1 1 0 0 CFO & President 0 Class B Ordinary Shares 2026-08-17 4 J 0 75000 0.004 A 75000 I By Oceanhawk Acquisition I Sponsor Represents Class B Ordinary Shares (founder shares) held indirectly through membership interests in Oceanhawk Acquisition I Sponsor, LLC. The reporting person received membership interests reflecting the number of founder shares indicated, at a nominal purchase price. The reporting person has no right to control Oceanhawk Acquisition I Sponsor, LLC or vote or dispose of any securities held by it. Transaction coded "J" because the acquisition represents a grant of membership interests by Oceanhawk Acquisition I Sponsor, LLC to the reporting person, which does not correspond to any other available transaction code. /s/ Jon Ryan 2026-08-17