Berkley W R Corp
WRB- Exchange
- NYSE
- Industry
- Fire, Marine & Casualty Insurance
- SEC CIK
- 0000011544
No open-market purchases or sales by Berkley W R Corp insiders were filed in the last 90 days; 954 institutions reported holding it in 13F filings for Q2 2026, worth $19.7B in total; Markel Group is the only superinvestor holding it.
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsOpen market, last 90 days
- 0
- 13F holdersQ2 2026, +36 vs. previous quarter
- 954
- 13F valueReported value at the end of Q2 2026
- $19.7B
- Superinvestors holdingAt the end of Q2 2026
- 1
Price chart
Superinvestors holding WRB, Q2 2026
1 superinvestor reports holding Berkley W R Corp on Form 13F. Percentages are the stock's share of each portfolio.
Latest insider trades
Open-market purchases and sales by Berkley W R Corp insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Mar 3, 2026 (view filing)8:00 PM ET | Mar 2-3 | 1 day | Mitsui Sumitomo Insurance Co Ltd and 1 other10% Owner | PPurchase | +258.2K | $72.61 | +$18.7M | +0.4%58.8M after | 4 lots10b5-1 |
| Feb 27, 2026 (view filing)7:30 PM ET | Feb 26-27 | 1 day | Mitsui Sumitomo Insurance Co Ltd and 1 other10% Owner | PPurchase | +300.0K | $71.65 | +$21.5M | +0.5%58.5M after | 3 lots10b5-1 |
| Feb 25, 2026 (view filing)8:02 PM ET | Feb 23-25 | 2 days | Mitsui Sumitomo Insurance Co Ltd and 1 other10% Owner | PPurchase | +553.7K | $71.13 | +$39.4M | +1.0%58.2M after | 6 lots10b5-1 |
| Feb 20, 2026 (view filing)7:34 PM ET | Feb 19-20 | 1 day | Mitsui Sumitomo Insurance Co Ltd and 1 other10% Owner | PPurchase | +505.6K | $70.70 | +$35.7M | +0.9%57.7M after | 3 lots10b5-1 |
| Feb 18, 2026 (view filing)6:30 PM ET | Feb 17-18 | 1 day | Mitsui Sumitomo Insurance Co Ltd and 1 other10% Owner | PPurchase | +566.4K | $70.92 | +$40.2M | +1.0%57.2M after | 3 lots10b5-1 |
| Feb 13, 2026 (view filing)8:30 PM ET | Feb 12-13 | 1 day | Mitsui Sumitomo Insurance Co Ltd and 1 other10% Owner | PPurchase | +40.0K | $70.93 | +$2.84M | +0.1%56.6M after | 5 lots10b5-1 |
| Feb 11, 2026 (view filing)8:30 PM ET | Feb 9-11 | 2 days | Mitsui Sumitomo Insurance Co Ltd and 1 other10% Owner | PPurchase | +98.0K | $69.68 | +$6.83M | +0.2%56.6M after | 7 lots10b5-1 |
| Feb 6, 2026 (view filing)8:46 PM ET | Feb 5-6 | 1 day | Mitsui Sumitomo Insurance Co Ltd and 1 other10% Owner | PPurchase | +40.0K | $70.88 | +$2.84M | +0.1%56.5M after | 4 lots10b5-1 |
| Feb 4, 2026 (view filing)7:45 PM ET | Feb 2-4 | 2 days | Mitsui Sumitomo Insurance Co Ltd and 1 other10% Owner | PPurchase | +315.2K | $68.05 | +$21.5M | +0.6%56.4M after | 6 lots10b5-1 |
| Jan 30, 2026 (view filing)7:30 PM ET | Jan 29-30 | 1 day | Mitsui Sumitomo Insurance Co Ltd and 1 other10% Owner | PPurchase | +485.0K | $68.22 | +$33.1M | +0.9%56.1M after | 3 lots10b5-1 |
Top 10 13F holders, Q2 2026
The largest institutional positions in Berkley W R Corp at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Mitsui Sumitomo Insurance Co Ltd | 58,780,450 | $4.15B | 100.00% | 00.0% | Unchanged |
| BlackRock, Inc. | 21,934,626 | $1.55B | 0.02% | −1,345,982−5.8% | Reduced |
| Vanguard Capital Management LLC | 18,690,969 | $1.32B | 0.03% | −234,872−1.2% | Reduced |
| Vanguard Portfolio Management LLC | 14,550,971 | $1.03B | 0.05% | −199,262−1.4% | Reduced |
| State Street Corp | 14,126,628 | $1.00B | 0.03% | −278,782−1.9% | Reduced |
| Geode Capital Management, LLC | 8,268,721 | $588.5M | 0.03% | +39,067+0.5% | Added |
| Morgan Stanley | 8,252,790 | $582.1M | 0.03% | −2,159,675−20.7% | Reduced |
| Kayne Anderson Rudnick Investment Management LLC | 6,377,064 | $449.8M | 1.40% | −1,395,149−18.0% | Reduced |
| Invesco Ltd. | 5,028,284 | $354.6M | 0.03% | −23,481−0.5% | Reduced |
| Goldman Sachs Group Inc | 4,158,216 | $293.3M | 0.03% | +1,306,932+45.8% | Added |