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4536 on Tokyo Stock Exchange

Santen Pharmaceutical

Logo: RicHard-59, Public domain, via Wikimedia Commons3

Japanese pharmaceutical company

Santen Pharmaceutical Co., Ltd. (参天製薬株式会社, Santen Seiyaku Kabushiki-gaisha), is a Japanese pharmaceutical company, specializing in ophthalmology. With its ophthalmic products Santen holds the top share within the Japanese market and is one of the leading ophthalmic companies worldwide, with its products being sold in over 50 countries. The company was founded in 1890 by Kenkichi Taguchi, as Taguchi Santendo, and in 1925, Santendo Co., Ltd. was established.2 Its shares trade on Tokyo Stock Exchange under the symbol 4536.1 Wikipedia text CC BY-SA 4.0

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Last updated Oct 21, 2026.

Overview

1890Founded1

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  • Ticker4536 on Tokyo Stock Exchange1
  • HeadquartersŌsaka-shi1
  • Websitewww.santen.com/en
  • Legal formkabushiki gaisha1

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Santen Pharmaceutical Co., Ltd. Nara R&D Center (3)
Photo: Tokumeigakarinoaoshima, CC0, via Wikimedia Commons5

Santen Pharmaceutical Co., Ltd. (参天製薬株式会社, Santen Seiyaku Kabushiki-gaisha), is a Japanese pharmaceutical company, specializing in ophthalmology. With its ophthalmic products Santen holds the top share within the Japanese market and is one of the leading ophthalmic companies worldwide, with its products being sold in over 50 countries.2

Corporate structure

Santen Pharmaceutical sits at the top of its group. 2 entities, 2 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

Built from subsidiaries, stakes and holdings from Wikidata (CC0); major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

Products and brands

Santen has 3 plants located in Hōdatsushimizu, Ishikawa, in Tampere and in Suzhou, 21 subsidiary companies located in Japan, the US, the Netherlands, Finland, United Kingdom & Ireland, Spain, Switzerland, Italy, France, Germany, Sweden, China, South Korea, Taiwan, India, Thailand, Malaysia, the Philippines and Singapore. Its R&D center is located in Ikoma, Nara.

From Wikipedia’s article on Santen Pharmaceutical, shared under CC BY-SA 4.0.4

Subsidiaries and ownership

Subsidiaries

From Wikidata.1

Timeline

  1. 1890Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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