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Rena Katsuyama


Rena's practice areas include mergers and acquisitions and capital markets.

Rena worked as an associate in Mergers & Acquisitions practice in the New York office from 2019 to 2021.

Prior to joining the firm, she engaged in M&A advisory services at an US investment bank.


Representative matters

An US insurance company in its acquisition of an US insurance risk consulting company.

PSA International Pte Ltd in its acquisition of BDP International, Inc. from Greenbriar Equity Group

Osaka Gas USA Corporation on its entry into a joint venture with Mitsubishi Heavy Industries America, Inc. to develop and operate the Brighter Future Solar Farm project, a solar electric generating facility having an aggregate nameplate capacity of 15.7 MWDC located in Caldwell County, North Carolina

An US pharmacy retail company in its acquisition of a specialty pharmacy company from an US drug wholesaler



New York


New York


Columbia Law School LL.M., Harlan Fiske Stone Scholar

Keio Graduate School of Law LL.M. in Antitrust Law

Keio University LL.B.


English, Japanese
A&O Shearman was formed on May 1, 2024 by the combination of Shearman & Sterling LLP and Allen & Overy LLP and their respective affiliates (the legacy firms). Any matters referred to above may include matters undertaken by one or more of the legacy firms rather than A&O Shearman.