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大井 悠紀
大井 悠紀

Yuki OI

  • Partner
  • Tokyo

Yuki Oi is a partner in our M&A/Corporate practice group. He advises domestic and international corporations and financial institutions on their cross-border and domestic M&A transactions. He also handles corporate governance matters and general corporate issues, as well as corporate crisis management matters and commercial litigation.
 
 Some of the major cases he has advised on include representing UFJ Holdings on its integration with Mitsubishi Tokyo Financial Group (2006), Bulldog Sauce on its famous defense against a hostile takeover attempt initiated by Steel Partners (2007), the Osaka Securities Exchange on its integration with the Tokyo Stock Exchange (2011), Idemitsu Kosan on its integration with Showa Shell Sekiyu (2015-19), Toshiba on its divestiture of Toshiba Memory Corporation (2018), and Honda on its strategic alliance with Sony Group in mobility sector (2022).
 
 He was awarded the Young Lawyer of the Year Award at the ALB Japan Law Awards 2019, and the Innovative Practitioners Award at the FT Innovative Lawyers Awards Asia-Pacific 2020. He was also selected as one of Asia’s top 40 lawyers under 40 by Asian Legal Business in 2017.
 
 He has also served as a lecturer at the University of Tokyo, Faculty of Law (2012-13), and Graduate Schools for Law and Politics (2014-present).

Representative Work

Awards & Rankings

N&A Newsletters

Seminars

Publications

News

Education

2010
Kellogg School of Management at Northwestern University (MBA with Distinction)
2008
Columbia Law School (LL.M., Harlan Fiske Stone Scholar)
2001
The University of Tokyo (LL.B.)

Professional Experience

Lecturer, The University of Tokyo Graduate Schools for Law and Politics 
Lecturer, The University of Tokyo