Hiroki Koizumi

FIAJ, Consultant

Tokyo, JP

Since joining Milliman in August 2022, Hiroki Koizumi has supported primarily life insurance projects, including review of MCEV, M&A, and product development.

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Experience

Hiroki started his career in April 2017 with Meiji Yasuda Life Insurance, where he was in charge of risk management assignments, ALM in particular, and actuarial work for the development of new products.

Professional Designations

Fellow, Institute of Actuaries of Japan

Education

BS, Faculty of Economics, The University of Tokyo

Publications

Read their latest work

Article

ESR for life insurance companies under new Japanese solvency regulation

06 February 2026 - by Kyosuke Aiguchi, Hiroki Koizumi, Ryota Yonezawa, Noriyuki Kogo

As Japan shifts to a new regulatory framework for life insurers, we examine how companies fare under the economic value-based solvency margin ratio.

Article

Asset and liability management survey 2025: Asia

08 December 2025 - by Julian Man, Clement Bonnet, Alex Bryant, Takanori Hoshino, Hiroki Koizumi, Chihong An, Sung Hoon Kim, Linda Jin, Jaden Chiu, Michelle Lai, Lucy Ouyang, Florin Ginghina

Insurers in Asia are taking a more proactive approach to ALM, according to our 2025 survey of companies in the region.

Hiroki Koizumi

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Experience

Read their latest work

ESR for life insurance companies under new Japanese solvency regulation

Asset and liability management survey 2025: Asia

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CHOOSE A LOCATION AND LANGUAGE

Hiroki Koizumi

Read their latest work

ESR for life insurance companies under new Japanese solvency regulation

Asset and liability management survey 2025: Asia

CHOOSE A LOCATION AND LANGUAGE