Institutional Manager · CIK 0001142206
MITSUI SUMITOMO INSURANCE CO LTD
TOKYO, M0 · File #028-26412
Latest AUM
$3.54B
Positions
1
Top-10 Concentration
100.0%
Filings
1
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| NEW | W. R. Berkley Corporation | WRB-PH | +50,526,511 | +$3.54B | $0 |
Filing History
- 13F HOLDINGS REPORTQ/E Dec 20251 pos · $3.54B
Top 1 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | W. R. Berkley Corporation | WRB-PH | 50,526,511 | $3.54B | 100.00% |