4650 on Tokyo Stock Exchange

SD Entertainment

SD Entertainment is a Japanese company specializing in wellness tourism based in Shiroishi-ku, founded in 1954.1 It is part of Rizap Group.1 Its shares trade on Tokyo Stock Exchange under the symbol 4650.1

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Last updated Oct 20, 2026.

Overview

May 26, 1954Founded1

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  • Ticker4650 on Tokyo Stock Exchange1
  • HeadquartersShiroishi-ku1
  • Websitesdentertainment.jp
  • Legal formjoint-stock company1

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SD Entertainment image from its website
Image: sdentertainment.jp2

Corporate structure

SD Entertainment is part of a group headed by Rizap Group. 4 entities, 1 country 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.

Subsidiaries and ownership

Parent company

From Wikidata.1

Timeline

  1. Jul 2014Renamed Name changed to SDエンターテイメント株式会社1
  2. Jul 2009Renamed Name changed to 株式会社ゲオディノス1
  3. Sep 1996Went public Listed on Tokyo Stock Exchange1
  4. Apr 1996Renamed Name changed to 株式会社スガイ・エンタテインメント1
  5. May 26, 1954Founded Founded1

Sources

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

  1. 1
  2. 2
    Company websiteSD Entertainment photo