v3.26.1
Cover
May 22, 2026
Document Type 8-K
Amendment Flag false
Document Period End Date May 22, 2026
Entity File Number 001-43309
Entity Registrant Name Oceanhawk Acquisition Corp.
Entity Central Index Key 0002090787
Entity Tax Identification Number 98-1886973
Entity Incorporation, State or Country Code E9
Entity Address, Address Line One 515 Madison Avenue
Entity Address, Address Line Two 8th Floor
Entity Address, City or Town New York
Entity Address, State or Province NY
Entity Address, Postal Zip Code 10022
City Area Code 212
Local Phone Number 931-1898
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company true
Elected Not To Use the Extended Transition Period false
Units, each consisting of one Class A  
Title of 12(b) Security Units, each consisting of one Class A
Trading Symbol OHACU
Security Exchange Name NASDAQ
Class A ordinary share, par value $0.0001  
Title of 12(b) Security Class A ordinary share, par value $0.0001
Trading Symbol OHAC
Security Exchange Name NASDAQ
Rights, each right to receive one-fourth of  
Title of 12(b) Security Rights, each right to receive one-fourth of
Trading Symbol OHACR
Security Exchange Name NASDAQ