Daiichi Sankyo Announces Changes to Representative Directors, Members of the Board, and Members of the Audit and Supervisory Board

PRESS RELEASE

Tokyo, Japan, (May 14, 2015) —Daiichi Sankyo Company, Limited today announced that its Board of Directors has nominated new Representative Directors, Members of the Board and Members of the Audit and Supervisory Board as follows. Appointments will be subject to approval at the Company’s 10th Annual General Meeting of Shareholders on June 22 and formal resolutions at a subsequent board meeting.

1. Changes to Representative Directors (as of June 22, 2015)

Reason for change: The expiration of the term of Representative Directors

(1) Appointed Representative Directors

Name

New Position

Current Position

Kazunori Hirokawa

Representative Director, Member of the Board, Executive Vice President,

Head of Corporate Management Division

Member of the Board,

Executive Vice President,

Head of Corporate Management Division

(2) Retiring Representative Director

Name

New Position

Current Position

Manabu Sakai

Corporate Adviser

Representative Director,

Member of the Board

2. Changes to Members of the Board (as of June 22, 2015)

(1) New candidates for Member of the Board

- Toshiaki Sai (Senior Executive Officer, Head of Corporate Strategy Division)

- Naoki Adachi (Chairman & Representative Director, TOPPAN PRINTING CO., LTD.)

- Tsuguya Fukui (Chairperson of the Board of Trustees, St. Luke's International University; President, St. Luke’s International Hospital)

* Naoki Adachi and Tsuguya Fukui are new candidates for “Member of the Board (Outside)” as defined in Article 2-15 of the Companies Act.

(2) Retiring Members of the Board

- Manabu Sakai (Representative Director, Member of the Board)

- Hiroshi Hirabayashi (Member of the Board (Outside) )

- Kunio Ishihara (Member of the Board (Outside) )

* Manabu Sakai will become a Corporate Adviser at Daiichi Sankyo Co., Ltd.

3. Changes to Members of the Audit and Supervisory Board (as of June 22, 2015)

(1) New candidates for Member of the Audit and Supervisory Board

- Hideyuki Haruyama (Member of the Board, DAIICHI SANKYO RD NOVARE CO., LTD.)

- Kazuyuki Watanabe (Corporate Officer, In charge of External Affairs)

(2) Retiring Members of the Audit and Supervisory Board (as of June 22, 2015)

- Kazuo Koike (Member of the Audit and Supervisory Board)

- Takashi Chiba (Member of the Audit and Supervisory Board)

* Kazuo Koike and Takashi Chiba will become Corporate Advisers at Daiichi Sankyo Co., Ltd.