BERKLEY W R CORP
Total Trades
22
Buys
22
Sells
0
Largest Trade
$1M+
Insiders
3
Institutional Funds
819
Inst. Value
$1M+
Activist Filings
12
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | BUY | $1M+ | 258K | $72.61 | Mar 4, 2026 |
| MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | BUY | $1M+ | 300K | $71.65 | Feb 28, 2026 |
| MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | BUY | $1M+ | 554K | $71.13 | Feb 26, 2026 |
| MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | BUY | $1M+ | 506K | $70.70 | Feb 21, 2026 |
| MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | BUY | $1M+ | 566K | $70.92 | Feb 18, 2026 |
| MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | BUY | $1M+ | 40K | $70.93 | Feb 14, 2026 |
| MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | BUY | $1M+ | 98K | $69.68 | Feb 12, 2026 |
| MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | BUY | $1M+ | 40K | $70.88 | Feb 7, 2026 |
| MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | BUY | $1M+ | 315K | $68.05 | Feb 5, 2026 |
| MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | BUY | $1M+ | 485K | $68.22 | Jan 31, 2026 |
| MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | BUY | $1M+ | 1.0M | $67.35 | Jan 29, 2026 |
| MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | BUY | $1M+ | 698K | $67.19 | Jan 24, 2026 |
| MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | BUY | $1M+ | 630K | $67.64 | Jan 22, 2026 |
| MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | BUY | $1M+ | 535K | $68.50 | Jan 17, 2026 |
| MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | BUY | $1M+ | 811K | $68.58 | Jan 15, 2026 |
| MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | BUY | $1M+ | 470K | $69.45 | Jan 10, 2026 |
| MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | BUY | $1M+ | 681K | $69.61 | Jan 8, 2026 |
| MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | BUY | $1M+ | 673K | $70.11 | Jan 3, 2026 |
| MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | BUY | $1M+ | 880K | $70.53 | Dec 30, 2025 |
| MITSUI SUMITOMO INSURANCE CO LTD | 10% Owner | BUY | $1M+ | 610K | $69.71 | Dec 23, 2025 |
| Talisman Jonathan | Director | BUY | <$1K | 6 | $67.59 | Sep 14, 2022 |
| BROCKBANK MARK ELLWOOD | Director | BUY | $100K–$500K | 6K | $61.96 | Aug 2, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 819 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| STATE STREET CORP | 14.9M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 7.4M | $1M+ | SH |
| NORGES BANK | 6.2M | $1M+ | SH |
| ROYAL LONDON ASSET MANAGEMENT LTD | 2.8M | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 2.7M | $1M+ | SH |
| 1832 Asset Management L.P. | 2.3M | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.9M | $1M+ | SH |
| Madison Asset Management, LLC | 1.7M | $1M+ | SH |
| AQR CAPITAL MANAGEMENT LLC | 1.7M | $1M+ | SH |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 1.3M | $1M+ | SH |
| EULAV Asset Management | 1.3M | $1M+ | SH |
| CONFLUENCE INVESTMENT MANAGEMENT LLC | 1.2M | $1M+ | SH |
| Dundas Partners LLP | 1.2M | $1M+ | SH |
| NATIXIS ADVISORS, LLC | 1.2M | $1M+ | SH |
| ANCHOR CAPITAL ADVISORS LLC | 1.1M | $1M+ | SH |
| Cornerstone Investment Partners, LLC | 1.1M | $1M+ | SH |
| RAYMOND JAMES FINANCIAL INC | 1.1M | $1M+ | SH |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1.0M | $1M+ | SH |
| PFA Pension, Forsikringsaktieselskab | 921K | $1M+ | SH |
| ENVESTNET ASSET MANAGEMENT INC | 918K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13D/A · Mar 5, 2026
25.5%
95.6M shares
Mitsui Sumitomo Insurance Co., Ltd.
SC 13D/A · Mar 5, 2026
15.7%
58.8M shares
Mitsui Sumitomo Insurance Co., Ltd.
SC 13D/A · Feb 7, 2026
14.9%
56.5M shares
Mitsui Sumitomo Insurance Co., Ltd.
SC 13D/A · Jan 15, 2026
13.9%
52.7M shares
SC 13D · Dec 12, 2025
25.1%
95.6M shares
Mitsui Sumitomo Insurance Co., Ltd.
SC 13D · Dec 11, 2025
12.8%
48.6M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
9.4%
24.2M shares
SC 13G/A · Jan 29, 2024
6.3%
16.4M shares
SC 13G/A · Feb 1, 2023
5.4%
14.4M shares
Morgan Stanley I.R.S. # 36-3145972
SC 13G/A · Dec 12, 2022
3.9%
10.3M shares
Morgan Stanley I.R.S. # 36-3145972
SC 13G/A · Feb 10, 2022
5.3%
9.3M shares
SC 13G/A · Jan 31, 2022
5.4%
9.6M shares