MITSUI SUMITOMO INSURANCE CO LTD SEC EDGAR Filings (CIK 0001142206)

SEC EDGAR filings, ownership reports, and insider transactions for MITSUI SUMITOMO INSURANCE CO LTD.

Industry
Fire, Marine & Casualty Insurance (Office Of Finance)
Business address
9, Kanda Surugadai 3 Chome, Chiyoda Ku, Tokyo, Japan, 101-8011
Top holdings (ownership)
WRB
Top securities (13F)
WRB
Top holdings (Schedule 13D)
WRB
State of incorporation
Japan
Fiscal year end
31 March
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MITSUI SUMITOMO INSURANCE CO LTD has filed 60 SEC EDGAR filings since 30 Jan 2002

Latest Filings

Recent SEC filings for MITSUI SUMITOMO INSURANCE CO LTD including 4, 13F-HR, SCHEDULE 13D/A and more.

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open 4 document View SEC filing for 4 4 27 Feb 2026 26 Feb 2026 001-15202
4 Open 4 document View SEC filing for 4 4 25 Feb 2026 23 Feb 2026 001-15202
4 Open 4 document View SEC filing for 4 4 20 Feb 2026 20 Feb 2026 001-15202
4 Open 4 document View SEC filing for 4 4 18 Feb 2026 17 Feb 2026 001-15202
13F-HR Open 13F-HR document View SEC filing for 13F-HR 17 Feb 2026 31 Dec 2025 028-26412
4 Open 4 document View SEC filing for 4 4 13 Feb 2026 12 Feb 2026 001-15202
4 Open 4 document View SEC filing for 4 4 11 Feb 2026 09 Feb 2026 001-15202
4 Open 4 document View SEC filing for 4 4 06 Feb 2026 05 Feb 2026 001-15202
SCHEDULE 13D/A Open SCHEDULE 13D/A document View SEC filing for SCHEDULE 13D/A 06 Feb 2026
4 Open 4 document View SEC filing for 4 4 04 Feb 2026 02 Feb 2026 001-15202
4 Open 4 document View SEC filing for 4 4 30 Jan 2026 29 Jan 2026 001-15202
4 Open 4 document View SEC filing for 4 4 28 Jan 2026 26 Jan 2026 001-15202
4 Open 4 document View SEC filing for 4 4 23 Jan 2026 22 Jan 2026 001-15202
4 Open 4 document View SEC filing for 4 4 21 Jan 2026 20 Jan 2026 001-15202
4 Open 4 document View SEC filing for 4 4 16 Jan 2026 15 Jan 2026 001-15202
SCHEDULE 13D/A Open SCHEDULE 13D/A document View SEC filing for SCHEDULE 13D/A 14 Jan 2026
4 Open 4 document View SEC filing for 4 4 14 Jan 2026 12 Jan 2026 001-15202
4 Open 4 document View SEC filing for 4 4 09 Jan 2026 08 Jan 2026 001-15202
4 Open 4 document View SEC filing for 4 4 07 Jan 2026 05 Jan 2026 001-15202
4 Open 4 document View SEC filing for 4 4 02 Jan 2026 30 Dec 2025 001-15202
4 Open 4 document View SEC filing for 4 4 29 Dec 2025 23 Dec 2025 001-15202
4 Open 4 document View SEC filing for 4 4 22 Dec 2025 18 Dec 2025 001-15202
3 Open 3 document View SEC filing for 3 3 11 Dec 2025 04 Dec 2025 001-15202
SCHEDULE 13D Open SCHEDULE 13D document View SEC filing for SCHEDULE 13D 11 Dec 2025
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A SC 13D/A 01 Jul 2024
SC 13D/A Open SC 13D/A document View SEC filing for SC 13D/A SC 13D/A 29 Feb 2024
SC 13D Open SC 13D document View SEC filing for SC 13D SC 13D 12 Aug 2021

About this filer

MITSUI SUMITOMO INSURANCE CO LTD files with the SEC under CIK 0001142206. This page aggregates EDGAR filings and related ownership activity.

Industry: Fire, Marine & Casualty Insurance.

See reporting owner transactions.

FAQ

What is a CIK?
A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
Why are some filings missing?
New filings appear as the SEC updates EDGAR, and older records can vary by availability.
How often is this page updated?
Updates follow new EDGAR submissions and periodic data refreshes.

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