Eisai Co., Ltd. (TYO:4523)
Japan flag Japan · Delayed Price · Currency is JPY
4,668.00
-41.00 (-0.87%)
At close: Dec 5, 2025

Eisai Company Description

Eisai Co., Ltd. engages in the research and development, manufacture, sale, and import and export of pharmaceuticals.

The company offers Dayvigo, an orexin receptor antagonist for the treatment of insomnia; LEQEMBI, a humanized immunoglobulin gamma 1 (IgG1) monoclonal antibody for Alzheimer’s disease; Lenvima, an orally available multiple receptor tyrosine kinase inhibitor for the treatment of thyroid cancer and hepatocellular carcinoma, thymic carcinoma, renal cell carcinoma, and endometrial carcinoma; Fycompa, an anti-epileptic agent for primary generalized tonic-clonic seizures; and Halaven, a microtubule dynamics inhibitor for breast cancer and liposarcoma.

It operates in Japan, China, the Americas, Europe, the Middle East, Africa, and East Asia Global South.

The company was formerly known as Nihon Eisai Co., Ltd. and changed its name to Eisai Co., Ltd. in 1955.

Eisai Co., Ltd. was incorporated in 1941 and is headquartered in Tokyo, Japan.

Eisai Co., Ltd.
Country Japan
Founded 1941
Industry Drug Manufacturers - Specialty & Generic
Sector Healthcare
Employees 10,917
CEO Haruo Naito

Contact Details

Address:
4-6-10 Koishikawa
Tokyo, 112-8088
Japan
Phone 81 3 3817 3700
Website eisai.co.jp

Stock Details

Ticker Symbol 4523
Exchange Tokyo Stock Exchange
Stock Type Common Stock
Fiscal Year April - March
Reporting Currency JPY
ISIN Number JP3160400002
SIC Code 2834

Key Executives

Name Position
Haruo Naito Chief Executive Officer
Mitsuru Shomon Chief Financial Officer
Keisuke Naito Chief Operating Officer
Terushige Iike Head of Investor Relations