Directors of the Board and Executive Team (As of November 1, 2025)

Representative Director of the Board, Chief Executive Officer

Akihisa Harada

President, Representative Director of the Board, Chief Operating Officer

Akihiro Tsujimura

Chairman, Director of the Board

Costa Saroukos

Director of the Board

Ryousuke Tanabe

Director of the Board

Yuji Sugimoto

Director of the Board

Masashi Suekane

Director of the Board

Hiroki Inada

Director of the Board

William Cozean

Director of the Board

Nicholas Gattas

Corporate Auditor

Satomi Takada

Corporate Auditor

Shintaro Kohmoto

Chief Transformation Officer & General Counsel, Head of Business Development Div.

Kazumasa Nagayama

Chief Business Officer

Sean Ryan

Chief Financial Officer, Head of Finance Div.

Amit Singh

Chief Human Resources Officer

Naoki Ohta

Chief Information Officer, Head of IT Digital Div.

Keitaro Shigemasa

Chief Medical Officer, Head of Global R&D, and Global Development & Medical Affairs Div.

Bijan Nejadnik

Executive Officer, Head of Corporate Strategy Div.

Tetsurou Iwata

Executive Officer, Head of Legal, Compliance, and Intellectual Property Div.

Michihisa Yatou

Executive Officer, Head of Human Resources & General Affairs Div.

Tomoaki Tokuno

Executive Officer, Head of Research Div.

Naoya Masutomi

Executive Officer, Head of Development & Medical Affairs Div.

Yousuke Kimura

Executive Officer, Head of Product Supply Div.

Kenji Taguchi

Executive Officer, Head of Quality & Vigilance Div.

Masanobu Kono

Executive Officer, Head of Japan Pharmaceutical Business Div.

Yasutaka Kuragaki

Executive Officer, Head of North America Business Div.

Yasutoshi Kawakami

Executive Officer, Head of Asia and Europe Business Div.

Toshifumi Tada

Executive Officer, Head of Market Access and Government Affairs

Simon Collier