MITSUI SUMITOMO INSURANCE CO LTD - Stock Holdings in 13F Filings (SEC)

Updated on March 15, 2026.

Based on 13F Filings filed with the SEC on February 17, 2026, for the 2025 Q4 period, MITSUI SUMITOMO INSURANCE CO LTD held in its portfolio 1 assets valued at $3,542,918,951 (i.e. $3.54B).

The most valuable assets in the portfolio included: W. R. Berkley Corporation ($3.54B).

The chart below shows the top 1 valuable assets, and the table below shows the top 1 valuable assets.

You can see similar for other investment managers.

Related Topics: SEC Topic List.

Data Source: SEC.

Top Valuable Stocks in MITSUI SUMITOMO INSURANCE CO LTD Portfolio

W. R. Berkley Corporation

MITSUI SUMITOMO INSURANCE CO LTD - Stock Holdings in 13F Filings (SEC)

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Name of Issuer	No. of Shares	Value ($)	Class
W. R. Berkley Corporation	50526511	3542918951	Common Stock