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Private company

Mitsui Sumitomo Insurance Group

Mitsui Sumitomo Insurance Group is an insurance company based in Tokyo, founded in 2000.1 It ceased to exist in 2010.1

Last updated Oct 21, 2026.

Overview

2000Founded1
  • IndustryFire, Marine & Casualty Insurance1
  • HeadquartersTokyo1
  • Websitewww.msig.com/en
  • Legal formkabushiki gaisha1
  • Listed onTokyo Stock Exchange (8725)1

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Corporate structure

Mitsui Sumitomo Insurance Group sits at the top of its group. 4 entities, 3 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; stakes of 5% or more it reported on Schedules 13D and 13G (2 companies). Each entity in the chart links to its source.

Subsidiaries and ownership

Subsidiaries

From Wikidata.1

Timeline

  1. Apr 1, 2010Dissolved Dissolved1
  2. Apr 1, 2008Went public Listed on Tokyo Stock Exchange1
  3. 2000Founded Founded1

Filings

3 filings to the SEC since October 2021: 3 other. The latest 3:

  1. Aug 13, 202613F-HR EDGAR
  2. May 14, 202613F-HR EDGAR
  3. Feb 17, 202613F-HR EDGAR

Every filing from the last five years, summarized. The full record is on SEC EDGAR.

Stakes it holds

Mitsui Sumitomo Insurance Group has told the SEC it owns more than 5% of 2 companies, latest first (Schedules 13D and 13G).

SEC filer profile

How Mitsui Sumitomo Insurance Group is registered with the Securities and Exchange Commission, from its EDGAR record and the cover page of its latest annual report.

  • Name on EDGARMITSUI SUMITOMO INSURANCE CO LTD2
  • CIK0001142206
  • Incorporated inJapan2
  • Fiscal year endsMarch 312
  • Industry code (SIC)6331 Fire, Marine & Casualty Insurance2
  • SEC reviewing officeOffice of Finance, Division of Corporation Finance2
  • Business address9, Kanda Surugadai 3-Chome, Chiyoda-Ku, Tokyo, M0 101-80112
  • Phone813325931112
  • On EDGAR sinceJan 30, 20022
  • Filings65 in all: 6-K (21), 4 (20), 425 (5), SCHEDULE 13D/A (4), 13F-HR (3), 15-15D (2), SC 13D/A (2), 20-F (1)2
    All 15 form types

    3 (1), 424B3 (1), EFFECT (1), F-4 (1), F-N (1), SC 13D (1), SCHEDULE 13D (1)

  • Latest filingsAnnual report (20-F) Sep 30, 2002

Sources

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

  1. 1
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