For Immediate Release

Company name: DAIICHI SANKYO COMPANY, LIMITED
Representative: Takashi Shoda, President and Representative Director
(Code no.: 4568, First Section, Tokyo, Osaka and Nagoya Stock Exchanges)
Please address inquiries to Toshiaki Sai, General Manager,
Corporate Communications Department
Telephone: +81-3-6225-1126
http://www.daiichisankyo.com/

Notice of Details of the Stock Options (Stock Acquisition Rights)

TOKYO, Japan (August 17,2009) - Daiichi Sankyo Company, Limited has announced, with respect to the offered stock options (stock acquisition rights) to remunerate directors (excluding outside directors) and corporate officers approved at the meeting of its Board of Directors held on July 31, 2009, that the amount to be paid and other details were decided today.

1.Name of offered stock acquisition rights
          Daiichi Sankyo Company, Limited No. 3 stock acquisition rights

2.Number of issued stock acquisition rights
          2,308 stock acquisition rights (100 shares per one stock acquisition right)
  Breakdown
          Six (6) directors:   1,002 stock acquisition rights
          Eighteen (18) corporate officers:   1,306 stock acquisition rights

3.Subscription amount for offered stock acquisition right
          133,800 yen per stock acquisition rights
          (1,338 yen per share)

Reference
Date of Board of Directors resolution: July 31, 2009