Notice on Determination of Details of Stock Options (Stock Acquisition Rights) to be Allotted

Listed Stock Name:Eisai Co., Ltd.
Director and President & CEO:Haruo Naito
Headquarters:4-6-10 Koishikawa Bunkyo-ku, Tokyo
Securities Code:4523
Listed Locations:First Sections of the Tokyo Stock Exchange
& the Osaka Securities Exchange
Inquiries:Yuji Matsue
Vice President
Corporate Communications
Phone 81-3-3817-5120

Notice on Determination of Details of Stock Options (Stock Acquisition Rights) to be Allotted

Eisai Co., Ltd. (Headquarters: Tokyo, President & CEO: Haruo Naito, “Company”) announced today that the details of Stock Options to be allotted to Directors, Executive Officers and employees of the Company in accordance with the resolution of the Board of Directors' Meeting (see III. below) held on June 18, 2010 have been determined as follows:

I.Eisai Co., Ltd. No. 9-1 Stock Acquisition Rights (Directors and Executive Officers)

  1. Allotment date of stock acquisition rights:
    July 5, 2010.
  2. Total number of shares included in the allotment of stock acquisition rights:
    1,440
  3. Recipients and the number of recipients of the allotment and the number of stock acquisition rights allotted
    10 Directors 400
    18 Executive officers 1,040
  4. Class and number of shares to be issued or transferred upon exercise of stock acquisition rights
    Shares of common stock 144,000
    (The number of shares to be issued or transferred upon exercise of each stock acquisition right shall be 100 shares.)
  5. Amount of assets to be contributed upon exercise of stock acquisition rights
    The amount to be paid for each share (the Exercise Price) ¥2,981
    The amount to be paid for each stock acquisition right     ¥298,100
    (The Exercise Price is the average of the closing price of the common stock in the regular trading thereof on the Tokyo Stock Exchange for each day of the month preceding the month on the allotment date of July 5, 2010)

II.Eisai Co., Ltd. No. 9-2 Stock Acquisition Rights (Employees)

  1. Allotment date of stock acquisition rights:
    July 5, 2010.
  2. Total number of shares included in the allotment of stock acquisition rights:
    1,750
  3. Recipients and the number of recipients of the allotment and the number of Stock acquisition rights allotted.
    4 senior group officers 160
    13 group officers 390
    40 employees 1,200
  4. Class and number of shares to be issued or transferred upon exercise of stock acquisition rights
    Shares of common stock 175,000
    (The number of shares to be issued or transferred upon exercise of each stock acquisition right shall be 100 shares.)
  5. Amount of assets to be contributed upon exercise of stock acquisition rights
    The amount to be paid for each share (the Exercise Price) ¥2,981
    The amount to be paid for each stock acquisition right     ¥298,100
    (The Exercise Price is the average of the closing price of the common stock in the regular trading thereof on the Tokyo Stock Exchange for each day of the month preceding the month on the allotment date of July 5, 2010)

III.Contents of the resolution of board of directors on June 18, 2010.

  1. Based on the resolution of the Compensation Committee Meeting on May 14, 2010 and Article 240, Paragraph 1 and Article 238, Paragraph 2 of the Corporate Law, the Company shall issue “Eisai Co., Ltd. No. 9-1 Stock Acquisition Rights” on July 5, 2010, as compensation to directors and executive officers, in accordance with Article 238, Paragraph 1 of the Corporate Law.
  2. Based on the mandate approved at the 98th General Meeting of Shareholders held today (June 18, 2010) and Article 238 Paragraph 2 and Article 239 Paragraph 1 Part 1 and 2 of the Corporate Law, the Company shall issue “Eisai Co., Ltd. No. 9-2 Stock Acquisition Rights” on July 5, 2010, in accordance with Article 238, Paragraph 1 of the Corporate Law to give an incentive to its employees to increase further value of the Company.

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