# Mitsui Sumitomo Insurance Co Ltd

> Institutional holdings reported to the SEC as of Q2 2026 on Form 13F. CIK 1142206. Source: https://holderbook.com/funds/1142206-mitsui-sumitomo-insurance-co-ltd/

- Reported value: $4.1B
- Positions: 1
- Weight of the ten largest: 100.0%
- Filed: 2026-08-13

A 13F reports long US equity positions only. Short positions, bonds, foreign listings, private holdings and cash are not visible, so this is not the manager's whole book.

## Holdings

| Security | Ticker | Value | Shares | Weight | Quarters held |
|---|---|---|---|---|---|
| BERKLEY W R CORP | [WRB](https://holderbook.com/stocks/WRB/) | $4.1B | 58,780,450 | 100.0% | 3 |

## Quarter by quarter

| Quarter | Value | Positions |
|---|---|---|
| Q2 2026 | $4.1B | 1 |
| Q1 2026 | $3.9B | 1 |
| Q4 2025 | $3.5B | 1 |