| $310M | ||
| $248M | ||
| $119M | ||
| $57M | ||
| $51M | ||
| $26M |
Buys | $705,457,909 | 50 | 100 |
Sells | $0 | 0 | 0 |
| MITSUI SUMITOMO INSURANCE CO LTD | 10 percent owner | 50 | $705.46M | 0 | $0 | $705.46M |
W. R. Berkley Corporation functions as an insurance holding company, primarily underwriting commercial policies across the United States and globally. Its extensive operations are divided into two principal divisions: Insurance, and Reinsurance & Monoline Excess. The Insurance segment delivers a wide spectrum of commercial insurance solutions. This includes foundational coverages such as general liability, property, commercial auto, and professional liability, alongside specialized offerings like workers' compensation, environmental policies for diverse businesses, directors and officers (D&O) liability, cyber risk protection, and niche policies for fine arts and jewelry. The segment also extends to personal lines, providing home and automobile insurance, and specialized liability products for sectors such as law enforcement and public officials. Additionally, it offers accident and health insurance, group life, and crime and fidelity products, coupled with risk management and alternative risk program services. The Reinsurance & Monoline Excess segment focuses on assisting other insurance carriers and self-insured entities in effectively managing their overall risk exposure. This is accomplished through both treaty reinsurance, which handles portfolios of policies, and facultative reinsurance, designed for individual risks. Founded in 1967, W. R. Berkley Corporation is headquartered in Greenwich, Connecticut.
Over the last 12 months, insiders at W. R. Berkley Corporation have bought $705.46M and sold $0 worth of W. R. Berkley Corporation stock.
On average, over the past 5 years, insiders at W. R. Berkley Corporation have bought $352.87M and sold $0 worth of stock each year.
Highest buying activity among insiders over the last 12 months: MITSUI SUMITOMO INSURANCE CO LTD (10 percent owner) — $705.46M.
The last purchase of 112,176 shares for transaction amount of $8.1M was made by MITSUI SUMITOMO INSURANCE CO LTD (10 percent owner) on 2026‑03‑03.
| 2026-03-03 | MITSUI SUMITOMO INSURANCE CO LTD | 10 percent owner | 112,176 0.0291% | $72.20 | $8.1M | -8.44% | ||
| 2026-03-02 | MITSUI SUMITOMO INSURANCE CO LTD | 10 percent owner | 146,000 0.0391% | $72.92 | $10.65M | -9.16% | ||
| 2026-02-27 | MITSUI SUMITOMO INSURANCE CO LTD | 10 percent owner | 147,000 0.0386% | $71.63 | $10.53M | -7.21% | ||
| 2026-02-26 | MITSUI SUMITOMO INSURANCE CO LTD | 10 percent owner | 153,000 0.0403% | $71.67 | $10.97M | -7.05% | ||
| 2026-02-25 | MITSUI SUMITOMO INSURANCE CO LTD | 10 percent owner | 168,868 0.0444% | $71.42 | $12.06M | -7.03% | ||
| 2026-02-24 | MITSUI SUMITOMO INSURANCE CO LTD | 10 percent owner | 164,786 0.0429% | $70.81 | $11.67M | -7.08% | ||
| 2026-02-23 | MITSUI SUMITOMO INSURANCE CO LTD | 10 percent owner | 220,000 0.058% | $71.15 | $15.65M | -6.17% | ||
| 2026-02-20 | MITSUI SUMITOMO INSURANCE CO LTD | 10 percent owner | 160,582 0.0421% | $70.80 | $11.37M | -6.07% | ||
| 2026-02-19 | MITSUI SUMITOMO INSURANCE CO LTD | 10 percent owner | 345,000 0.0906% | $70.65 | $24.37M | -4.98% | ||
| 2026-02-18 | MITSUI SUMITOMO INSURANCE CO LTD | 10 percent owner | 285,000 0.0748% | $70.64 | $20.13M | -5.49% | ||
| 2026-02-17 | MITSUI SUMITOMO INSURANCE CO LTD | 10 percent owner | 281,386 0.0742% | $71.19 | $20.03M | -5.81% | ||
| 2026-02-13 | MITSUI SUMITOMO INSURANCE CO LTD | 10 percent owner | 20,000 0.0053% | $69.88 | $1.4M | -3.99% | ||
| 2026-02-12 | MITSUI SUMITOMO INSURANCE CO LTD | 10 percent owner | 20,000 0.0053% | $71.99 | $1.44M | -6.53% | ||
| 2026-02-11 | MITSUI SUMITOMO INSURANCE CO LTD | 10 percent owner | 24,030 0.0062% | $70.59 | $1.7M | -6.30% | ||
| 2026-02-10 | MITSUI SUMITOMO INSURANCE CO LTD | 10 percent owner | 33,966 0.0089% | $69.38 | $2.36M | -4.12% | ||
| 2026-02-09 | MITSUI SUMITOMO INSURANCE CO LTD | 10 percent owner | 40,000 0.0105% | $69.38 | $2.78M | -3.18% | ||
| 2026-02-06 | MITSUI SUMITOMO INSURANCE CO LTD | 10 percent owner | 20,000 0.0053% | $70.66 | $1.41M | -4.66% | ||
| 2026-02-05 | MITSUI SUMITOMO INSURANCE CO LTD | 10 percent owner | 20,000 0.0052% | $71.10 | $1.42M | -5.73% | ||
| 2026-02-04 | MITSUI SUMITOMO INSURANCE CO LTD | 10 percent owner | 25,000 0.0066% | $70.20 | $1.76M | -4.23% | ||
| 2026-02-03 | MITSUI SUMITOMO INSURANCE CO LTD | 10 percent owner | 40,000 0.0104% | $68.64 | $2.75M | -2.83% |
| MITSUI SUMITOMO INSURANCE CO LTD | 10 percent owner | 58780450 15.7894% | $3.97B | 50 | 0 | |
| Berkley Capital, LLC | 6004661 1.613% | $405.55M | 0 | 3 | ||
| SHIEL JAMES G | EVP - Investments | 243513 0.0654% | $16.45M | 1 | 9 | <0.0001% |
| BALLARD EUGENE G | Sr.V.P.- CFO | 231486 0.0622% | $15.63M | 0 | 3 | |
| COLE ROBERT P | SVP - Regional Operations | 140896 0.0378% | $9.52M | 0 | 3 | |
| PATAFIO CLEMENT P | VP - Corporate Controller | 126883 0.0341% | $8.57M | 1 | 5 | +10.36% |
| HANCOCK PAUL J | SVP - Chief Corporate Actuary | 75875 0.0204% | $5.12M | 0 | 1 | |
| LEDERMAN IRA S | SVP, General Counsel & Sec. | 58791 0.0158% | $3.97M | 0 | 5 | |
| Stone Robert Daly | SVP - Alt. Mkts. Operations | 58198 0.0156% | $3.93M | 0 | 1 | |
| Ebers Kevin H | SVP - Information Technology | 25669 0.0069% | $1.73M | 0 | 4 | |
| Farrell Mary C | director | 9000 0.0024% | $607,860.00 | 1 | 0 | +11.37% |
| BLAYLOCK RONALD E | director | 8285 0.0022% | $559,568.90 | 0 | 3 | |
| HAWES RODNEY A JR | director | 5000 0.0013% | $337,700.00 | 2 | 0 | <0.0001% |
| BROCKBANK MARK ELLWOOD | 4566 0.0012% | $308,387.64 | 4 | 3 | +18.84% | |
| Talisman Jonathan | director | 359 0.0001% | $24,246.86 | 1 | 0 | <0.0001% |
$22,165,660 | 122 | 6.86% | $26.03B | |
$153,003,434 | 109 | 11.98% | $11B | |
$9,113,360 | 92 | 7.43% | $4.98B | |
$10,864,380 | 68 | 8.54% | $22.9B | |
$33,778,786 | 61 | 22.18% | $4.93B | |
$620,622,916 | 56 | 15.87% | $7.34B | |
$32,326,727 | 49 | 20.05% | $5.49B | |
$774,000,000 | 39 | 26.65% | $12.13B | |
$7,343,423 | 25 | 6.77% | $6.86B | |
$112,415,853 | 24 | 11.03% | $22.09B | |
$4,939,443 | 24 | 3.85% | $64.62B | |
$3,919,230 | 23 | 9.61% | $5.5B | |
$6,410,594 | 17 | 4.32% | $127.19B | |
$3,522,142 | 11 | 53.32% | $7.16B | |
W. R. Berkley Corporation (WRB) | $7,389,333 | 10 | 7.76% | $25.14B |
$4,768,632 | 10 | -1.33% | $118.19B | |
$6,945,551 | 8 | 4.76% | $56.52B | |
$62,561,064 | 5 | 12.40% | $3.74B | |
$1,477,495 | 5 | 55.81% | $4.39B |
| Increased Positions | 449 | +41.96% | 67M | +26.31% |
| Decreased Positions | 456 | -42.62% | 35M | -13.74% |
| New Positions | 126 | New | 54M | New |
| Sold Out Positions | 101 | Sold Out | 13M | Sold Out |
| Total Postitions | 1,063 | -0.65% | 286M | +12.58% |
| Vanguard Group Inc | $2.55M | 9.66% | 36.72M | -238,035 | -0.64% | 2025-09-30 |
| Blackrock, Inc. | $1.72M | 6.52% | 24.77M | -460,264 | -1.82% | 2025-09-30 |
| State Street Corp | $1.03M | 3.93% | 14.92M | +149,605 | +1.01% | 2025-09-30 |
| Morgan Stanley | $818,765.00 | 3.11% | 11.8M | -1M | -10.81% | 2025-09-30 |
| Kayne Anderson Rudnick Investment Management Llc | $658,534.00 | 2.5% | 9.49M | -2M | -14.44% | 2025-09-30 |
| Jefferies Financial Group Inc. | $618,117.00 | 2.35% | 8.91M | +9M | New | 2025-09-30 |
| Geode Capital Management, Llc | $578,758.00 | 2.2% | 8.34M | +155,007 | +1.89% | 2025-09-30 |
| Janus Henderson Group Plc | $481,355.00 | 1.83% | 6.94M | -1M | -14.54% | 2025-09-30 |
| Principal Financial Group Inc | $363,551.00 | 1.38% | 5.24M | +242,546 | +4.85% | 2025-09-30 |
| Norges Bank | $347,339.00 | 1.32% | 5.01M | +349,846 | +7.51% | 2025-06-30 |