MITSUI SUMITOMO INSURANCE CO LTD purchased 1.8% of their position (879.57K shares) of BERKLEY W R CORP on the open market
Open‑market purchase worth $62.04M — a small addition. The strongest form of insider conviction signal.
P · 5 purchases
Filed: 12/29/2025ACC: 0001193125-25-335622
10% Owner
Since Mar 2026
+879.57K
Net shares
Net buyer
$62.04M
Total acquired
5
Open market trades
5B · 0S
5
Total transactions
879.57K acquired
Non-Derivative Transactions5
Common Stock
Direct
Shares
+232.55K
Price / share
$70.31
Trade value
$16.35M
% of position
0.5%
12/23/2025
49.21M→49.44M
Common Stock
Direct
Shares
+2.03K
Price / share
$71.15
Trade value
$144.23K
% of position
0.0%
12/23/2025
49.44M→49.45M
Common Stock
Direct
Shares
+220K
Price / share
$70.51
Trade value
$15.51M
% of position
0.4%
12/24/2025
49.45M→49.67M
Common Stock
Direct
Shares
+220K
Price / share
$70.56
Trade value
$15.52M
% of position
0.4%
12/26/2025
49.67M→49.89M
Common Stock
Direct
Shares
+205K
Price / share
$70.77
Trade value
$14.51M
% of position
0.4%
12/29/2025
49.89M→50.09M
Total
Net shares
+879.57K
Net value
$62.04M
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Direct | 12/23/2025 | P · Purchase | +232.55K | $70.31 | $16.35M | 0.5% | 49.21M | 49.44M |
| Common Stock Direct | 12/23/2025 | P · Purchase | +2.03K | $71.15 | $144.23K | 0.0% | 49.44M | 49.45M |
| Common Stock Direct | 12/24/2025 | P · Purchase | +220K | $70.51 | $15.51M | 0.4% | 49.45M | 49.67M |
| Common Stock Direct | 12/26/2025 | P · Purchase | +220K | $70.56 | $15.52M | 0.4% | 49.67M | 49.89M |
| Common Stock Direct | 12/29/2025 | P · Purchase | +205K | $70.77 | $14.51M | 0.4% | 49.89M | 50.09M |
| Total | +879.57K | $62.04M | ||||||
Derivative Transactions0
No derivative transactions reported