Masahiro Koike
Chief Operating Officer
Masahiro (Masa) is Chief Operating Officer and Head of TMR’s US Branch.
He joined the Tokio Marine Group in 1994. Prior to his current role, Masa was Head
of Operations for the US branch of TMR. He is also an Executive Director of TMR
Management, Inc.
Masa has more than 20 years of experience in the reinsurance field. He started his
career in the property & casualty reinsurance field purchasing outward reinsurance
protections for Tokio Marine and Nichido Fire. Masa subsequently moved on to
aviation insurance/reinsurance, initially as an underwriter for space
insurance/reinsurance. He later assumed the responsibility of Head of Underwriting
for Tokio Marine Nichido’s aviation book, serving the role of main underwriter for
the aviation reinsurance portfolio, as well as overseeing the entire aviation
insurance/reinsurance underwriting and operations.
Masa holds a Bachelor of Laws from Keio University, Japan, and an MBA from
Stanford University.