Mitsui Sumitomo Insurance Co Ltd
CIK 1142206 · View on SEC EDGAR ↗
- Portfolio value
- $4.1B
- Positions
- 1
- As of
- June 30, 2026
#919 of 9,443 by 13F value · top 9.7%
Portfolio value QoQ: +6.4% 13F does not disclose cash
- Top 10 holdings weight
- 100.00%
- Top 25 holdings weight
- 100.00%
- Positions above 1%
- 1
- Effective number of positions
- 1.0
Based on 13F long-equity holdings only (cash, bonds, shorts not disclosed)
Turnover Q2 2026: 0.0% Est. buys $0 · sells $0
- New positions
- 0
- Increased
- 0
- Decreased
- 0
- Closed
- 0
On this page
- Performance vs S&P How this manager's 13F portfolio performed against the S&P 500.
- Sector breakdown How the portfolio splits across market sectors.
- Portfolio Every stock this institution reports holding, from its latest 13F.
- Top moves The biggest position increases and decreases this quarter.
- Related The person behind this filer, where we can match one.
Performance vs S&P 500
Approximates a buy-and-hold portfolio built from quarterly SEC 13F snapshots. Excludes cash, short positions, options/derivatives, and non-13(f) securities — reflects the disclosed long-equity book only, not total fund AUM. SEC filing lag is up to 45 days; this is not a real-time-copyable timing.
Priceable coverage: 100.0% · Options excluded: 0.0%
Sector breakdown
Financials
100.0%
Full portfolio 1 positions
| Type | Streak | 8Q trend | |||||
|---|---|---|---|---|---|---|---|
| WRB W.R. Berkley Corporation Common Stock | $4,145,785,139 | 100.00% | 58,780,450 | $249,816,913 | |||
| No matches | |||||||
Top movers (QoQ)
| Security | Action | Shares Δ | Value Δ |
|---|---|---|---|
| WRB | Price move only | +0 | +$249.8M |