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.
13F holders, Q4 2025
Institutional positions in Berkley W R Corp as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 952
- +35 vs. Q3 2025
- Shares held
- 284.4M
- +40.1M (+16.4%) vs. Q3 2025
- Total value
- $19.9B
- +$1.29B (+6.9%) vs. Q3 2025
- New holders
- 134
- 311 more added
- Sold out
- 99
- 353 more reduced
17 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting WRB on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 954 | $19.7B |
| Q1 2026 | 926 | $18.5B |
| Q4 2025 | 952 | $19.9B |
| Q3 2025 | 934 | $18.7B |
| Q2 2025 | 923 | $18.7B |
| Q1 2025 | 915 | $18.7B |
| Q4 2024 | 876 | $15.3B |
| Q3 2024 | 800 | $14.8B |
| Q2 2024 | 758 | $13.8B |
| Q1 2024 | 772 | $15.9B |
| Q4 2023 | 728 | $12.6B |
| Q3 2023 | 667 | $11.0B |
| Q2 2023 | 660 | $10.3B |
| Q1 2023 | 693 | $11.2B |
| Q4 2022 | 716 | $13.2B |
| Q3 2022 | 667 | $11.9B |
| Q2 2022 | 665 | $12.6B |
| Q1 2022 | 617 | $12.1B |
| Q4 2021 | 575 | $10.1B |
| Q3 2021 | 513 | $9.04B |
| Q2 2021 | 526 | $9.17B |
| Q1 2021 | 507 | $9.36B |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Berkley W R Corp; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Mitsui Sumitomo Insurance Co Ltd | 50,526,511 | $3.54B | 100.00% | +50,526,511 | New |
| Vanguard Group Inc | 37,033,581 | $2.60B | 0.04% | +309,828+0.8% | Added |
| BlackRock, Inc. | 25,060,489 | $1.76B | 0.03% | +285,719+1.2% | Added |
| State Street Corp | 14,916,433 | $1.05B | 0.04% | −4,6810.0% | Reduced |
| Morgan Stanley | 9,798,358 | $687.1M | 0.04% | −2,006,209−17.0% | Reduced |
| Kayne Anderson Rudnick Investment Management LLC | 8,709,181 | $610.7M | 1.64% | −785,257−8.3% | Reduced |
| Geode Capital Management, LLC | 8,348,791 | $587.0M | 0.04% | +4,536+0.1% | Added |
| Norges Bank | 6,214,380 | $435.8M | 0.05% | +6,214,380 | New |
| Invesco Ltd. | 4,913,337 | $344.5M | 0.03% | +20,538+0.4% | Added |
| Wells Fargo & Company | 3,990,309 | $279.8M | 0.05% | +85,165+2.2% | Added |
| Dimensional Fund Advisors LP | 3,638,379 | $255.1M | 0.05% | −73,046−2.0% | Reduced |
| First Trust Advisors LP | 3,595,187 | $252.1M | 0.18% | −625,749−14.8% | Reduced |
| Janus Henderson Group PLC | 3,557,807 | $249.5M | 0.11% | −3,382,139−48.7% | Reduced |
| UBS Group AG | 3,505,867 | $245.8M | 0.05% | +906,100+34.9% | Added |
| JPMorgan Chase & Co | 2,959,888 | $207.5M | 0.01% | −1,953,652−39.8% | Reduced |
| Northern Trust Corp | 2,888,270 | $202.5M | 0.03% | −124,775−4.1% | Reduced |
| Royal London Asset Management Ltd | 2,790,374 | $195.7M | 0.41% | +26,726+1.0% | Added |
| Goldman Sachs Group Inc | 2,756,154 | $193.3M | 0.03% | +1,142,120+70.8% | Added |
| Principal Financial Group Inc | 2,707,852 | $189.9M | 0.10% | −2,533,657−48.3% | Reduced |
| Polar Capital Holdings Plc | 2,445,000 | $171.4M | 0.78% | −305,000−11.1% | Reduced |
| Bank of America Corp | 2,353,962 | $165.1M | 0.01% | −217,095−8.4% | Reduced |
| 1832 Asset Management L.P. | 2,323,657 | $162.9M | 0.21% | −73,513−3.1% | Reduced |
| UBS Asset Management Americas Inc | 2,219,902 | $155.7M | 0.03% | +2,213,679+35,572.5% | Added |
| Bank of New York Mellon Corp | 2,201,848 | $154.4M | 0.03% | +466,501+26.9% | Added |
| Legal & General Group Plc | 2,060,831 | $144.5M | 0.03% | −73,734−3.5% | Reduced |
| Charles Schwab Investment Management Inc | 1,876,963 | $131.6M | 0.02% | +19,073+1.0% | Added |
| HSBC Holdings PLC | 1,735,958 | $121.9M | 0.07% | +885,417+104.1% | Added |
| AQR Capital Management LLC | 1,729,041 | $121.2M | 0.06% | +80,128+4.9% | Added |
| Madison Asset Management, LLC | 1,724,598 | $120.9M | 1.39% | −106,486−5.8% | Reduced |
| Chilton Investment Co LLC | 1,638,327 | $114.9M | 2.40% | −18,822−1.1% | Reduced |
| Royal Bank of Canada | 1,567,025 | $109.9M | 0.02% | −134,690−7.9% | Reduced |
| EULAV Asset Management | 1,295,464 | $90.8M | 2.42% | 00.0% | Unchanged |
| FMR LLC | 1,269,533 | $89.0M | 0.00% | +980,906+339.9% | Added |
| Raymond James Financial Inc | 1,192,060 | $83.6M | 0.03% | −129,770−9.8% | Reduced |
| Confluence Investment Management LLC | 1,181,506 | $82.8M | 1.24% | −50,031−4.1% | Reduced |
| Dundas Partners LLP | 1,161,472 | $81.4M | 5.73% | −20,129−1.7% | Reduced |
| Natixis Advisors, L.P. | 1,159,767 | $81.3M | 0.12% | −65,996−5.4% | Reduced |
| Anchor Capital Advisors LLC | 1,126,351 | $79.0M | 2.29% | −26,990−2.3% | Reduced |
| Cornerstone Investment Partners, LLC | 1,099,746 | $77.1M | 2.99% | +133,804+13.9% | Added |
| Barclays PLC | 1,045,669 | $73.3M | 0.03% | −147,003−12.3% | Reduced |
| Arrowstreet Capital, Limited Partnership | 1,038,877 | $72.8M | 0.04% | +469,451+82.4% | Added |
| Captrust Financial Advisors | 948,168 | $66.5M | 0.13% | −5,286−0.6% | Reduced |
| PFA Pension, Forsikringsaktieselskab | 921,372 | $65.2M | 0.19% | +921,372 | New |
| Envestnet Asset Management Inc | 917,610 | $64.3M | 0.02% | −339,585−27.0% | Reduced |
| Deutsche Bank AG | 867,184 | $60.8M | 0.02% | −76,532−8.1% | Reduced |
| Swiss National Bank | 831,462 | $58.3M | 0.03% | −43,300−4.9% | Reduced |
| Brandes Investment Partners, LP | 817,992 | $57.4M | 0.44% | −170,844−17.3% | Reduced |
| Amundi | 804,001 | $56.4M | 0.02% | +218,946+37.4% | Added |
| Parnassus Investments | 793,698 | $55.7M | 0.14% | −67,068−7.8% | Reduced |
| California Public Employees Retirement System | 773,307 | $54.2M | 0.03% | −346,245−30.9% | Reduced |
| Cerity Partners LLC | 747,731 | $52.4M | 0.08% | +316,842+73.5% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 717,356 | $50.3M | 0.03% | −11,388−1.6% | Reduced |
| Stifel Financial Corp | 703,016 | $49.3M | 0.04% | −138,640−16.5% | Reduced |
| Caisse de Depot Et Placement du Quebec | 685,153 | $48.0M | 0.08% | +367,209+115.5% | Added |
| Truist Financial Corp | 684,961 | $48.0M | 0.06% | −602,263−46.8% | Reduced |
| BloombergSen Inc. | 679,920 | $47.7M | 5.03% | −52,647−7.2% | Reduced |
| Mraz, Amerine & Associates, Inc. | 633,285 | $44.4M | 6.60% | +9,076+1.5% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 634,244 | $44.0M | 0.03% | +41,125+6.9% | Added |
| Rhumbline Advisers | 619,832 | $43.5M | 0.04% | −38,943−5.9% | Reduced |
| Nuveen, LLC | 600,639 | $42.1M | 0.01% | −1,212−0.2% | Reduced |
| BNP Paribas Arbitrage, SA | 581,456 | $40.8M | 0.03% | +107,392+22.7% | Added |
| Victory Capital Management Inc | 541,916 | $38.0M | 0.02% | −118,780−18.0% | Reduced |
| Maren Capital LLC | 536,470 | $37.6M | 2.02% | −527,355−49.6% | Reduced |
| Citigroup Inc | 536,374 | $37.6M | 0.03% | +141,338+35.8% | Added |
| Danske Bank A/S | 508,907 | $35.7M | 0.08% | +40,638+8.7% | Added |
| Manufacturers Life Insurance Company, The | 480,369 | $33.7M | 0.03% | −694,539−59.1% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 479,097 | $33.6M | 0.04% | +87,961+22.5% | Added |
| Russell Investments Group, Ltd. | 463,568 | $32.6M | 0.04% | +149,863+47.8% | Added |
| Price T Rowe Associates Inc | 428,246 | $30.0M | 0.00% | −10,572−2.4% | Reduced |
| California State Teachers Retirement System | 383,530 | $26.9M | 0.03% | +8,771+2.3% | Added |
| APG Asset Management N.V. | 447,218 | $26.7M | 0.08% | −58,663−11.6% | Reduced |
| America First Investment Advisors, LLC | 379,387 | $26.6M | 4.84% | −261−0.1% | Reduced |
| American Century Companies Inc | 368,310 | $25.8M | 0.01% | +66,901+22.2% | Added |
| Arbejdsmarkedets Tillaegspension | 347,460 | $24.4M | 0.62% | +347,460 | New |
| SG Americas Securities, LLC | 344,040 | $24.1M | 0.03% | +320,027+1,332.7% | Added |
| Bank of Nova Scotia | 343,803 | $24.1M | 0.04% | +242,919+240.8% | Added |
| Public Employees Retirement Association of Colorado | 340,191 | $23.9M | 0.09% | −84,400−19.9% | Reduced |
| Zacks Investment Management | 336,823 | $23.6M | 0.19% | −1,922−0.6% | Reduced |
| Alliancebernstein L.P. | 327,364 | $23.0M | 0.01% | −28,893−8.1% | Reduced |
| Wallington Asset Management, LLC | 317,865 | $22.3M | 2.83% | −603−0.2% | Reduced |
| Stansberry Asset Management, LLC | 301,143 | $21.1M | 2.14% | −11,062−3.5% | Reduced |
| Storebrand Asset Management AS | 299,818 | $21.0M | 0.06% | +89,221+42.4% | Added |
| LPL Financial LLC | 298,409 | $20.9M | 0.01% | +43,129+16.9% | Added |
| ExodusPoint Capital Management, LP | 298,363 | $20.9M | 0.23% | +298,363 | New |
| CWM, LLC | 294,091 | $20.6M | 0.06% | −11,620−3.8% | Reduced |
| Rockefeller Capital Management L.P. | 282,266 | $19.8M | 0.04% | +37,999+15.6% | Added |
| Gotham Asset Management, LLC | 281,125 | $19.7M | 0.07% | +69,133+32.6% | Added |
| Silvercrest Asset Management Group LLC | 279,787 | $19.6M | 0.13% | +2,641+1.0% | Added |
| Stephens Inc | 274,015 | $19.2M | 0.24% | +5,017+1.9% | Added |
| New York State Teachers Retirement System | 268,505 | $18.8M | 0.04% | −810.0% | Reduced |
| State Board of Administration of Florida Retirement System | 267,114 | $18.7M | 0.03% | −38,660−12.6% | Reduced |
| Franklin Resources Inc | 267,094 | $18.7M | 0.00% | +95,634+55.8% | Added |
| Barlow Wealth Partners, Inc. | 269,657 | $18.5M | 1.99% | +3,952+1.5% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 253,401 | $18.3M | 0.03% | +299+0.1% | Added |
| Philo Smith Capital Corp | 260,381 | $18.3M | 5.02% | 00.0% | Unchanged |
| Fairholme Capital Management LLC | 260,150 | $18.2M | 1.27% | −1,300−0.5% | Reduced |
| Bank of Montreal | 259,946 | $18.2M | 0.01% | +13,684+5.6% | Added |
| Aviva PLC | 250,933 | $17.6M | 0.03% | +14,666+6.2% | Added |
| Illinois Municipal Retirement Fund | 250,676 | $17.6M | 0.22% | +37,876+17.8% | Added |
| Great West Life Assurance Co | 246,555 | $17.3M | 0.03% | −17,548−6.6% | Reduced |