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, Q1 2026
Institutional positions in Berkley W R Corp as of Mar 31, 2026. 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
- 926
- −9 vs. Q4 2025
- Shares held
- 278.9M
- +38.5M (+16.0%) vs. Q4 2025
- Total value
- $18.5B
- +$1.63B (+9.7%) vs. Q4 2025
- New holders
- 97
- 246 more added
- Sold out
- 106
- 423 more reduced
17 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Berkley W R Corp; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Mitsui Sumitomo Insurance Co Ltd | 58,780,450 | $3.90B | 100.00% | +8,253,939+16.3% | Added |
| BlackRock, Inc. | 23,280,608 | $1.54B | 0.03% | −1,779,881−7.1% | Reduced |
| Vanguard Capital Management LLC | 18,925,841 | $1.25B | 0.03% | +18,925,841 | New |
| Vanguard Portfolio Management LLC | 14,750,233 | $977.6M | 0.05% | +14,750,233 | New |
| State Street Corp | 14,405,410 | $954.8M | 0.03% | −511,023−3.4% | Reduced |
| Morgan Stanley | 10,412,465 | $690.1M | 0.04% | +614,107+6.3% | Added |
| Geode Capital Management, LLC | 8,229,654 | $549.2M | 0.03% | −119,137−1.4% | Reduced |
| Kayne Anderson Rudnick Investment Management LLC | 7,772,213 | $515.1M | 1.51% | −936,968−10.8% | Reduced |
| Invesco Ltd. | 5,051,765 | $334.8M | 0.03% | +138,428+2.8% | Added |
| First Trust Advisors LP | 3,972,929 | $263.3M | 0.19% | +377,742+10.5% | Added |
| Wells Fargo & Company | 3,789,666 | $251.2M | 0.05% | −200,643−5.0% | Reduced |
| Dimensional Fund Advisors LP | 3,768,180 | $249.8M | 0.05% | +129,801+3.6% | Added |
| JPMorgan Chase & Co | 3,273,964 | $216.9M | 0.01% | +314,076+10.6% | Added |
| UBS Group AG | 3,267,776 | $216.6M | 0.04% | −238,091−6.8% | Reduced |
| Bank of America Corp | 2,904,522 | $192.5M | 0.01% | +550,560+23.4% | Added |
| Goldman Sachs Group Inc | 2,851,284 | $189.0M | 0.02% | +95,130+3.5% | Added |
| Northern Trust Corp | 2,705,395 | $179.3M | 0.02% | −182,875−6.3% | Reduced |
| Janus Henderson Group PLC | 2,457,890 | $162.9M | 0.08% | −1,099,917−30.9% | Reduced |
| 1832 Asset Management L.P. | 2,293,921 | $152.0M | 0.20% | −29,736−1.3% | Reduced |
| Royal London Asset Management Ltd | 2,284,583 | $151.4M | 0.32% | −505,791−18.1% | Reduced |
| Polar Capital Holdings Plc | 2,275,000 | $150.8M | 0.66% | −170,000−7.0% | Reduced |
| UBS Asset Management Americas Inc | 2,175,492 | $144.2M | 0.03% | −44,410−2.0% | Reduced |
| Bank of New York Mellon Corp | 2,033,932 | $134.8M | 0.02% | −167,916−7.6% | Reduced |
| Principal Financial Group Inc | 1,918,380 | $127.2M | 0.07% | −789,472−29.2% | Reduced |
| Charles Schwab Investment Management Inc | 1,901,305 | $126.0M | 0.02% | +24,342+1.3% | Added |
| Legal & General Group Plc | 1,871,044 | $124.0M | 0.03% | −189,787−9.2% | Reduced |
| AQR Capital Management LLC | 1,848,105 | $122.5M | 0.06% | +119,064+6.9% | Added |
| Vanguard Fiduciary Trust Co | 1,658,869 | $109.9M | 0.03% | +1,658,869 | New |
| Madison Asset Management, LLC | 1,618,906 | $107.3M | 1.33% | −105,692−6.1% | Reduced |
| Citadel Advisors LLC | 1,394,141 | $92.4M | 0.07% | +1,281,891+1,142.0% | Added |
| FMR LLC | 1,389,362 | $92.1M | 0.00% | +119,829+9.4% | Added |
| Chilton Investment Co LLC | 1,388,792 | $92.0M | 2.16% | −249,535−15.2% | Reduced |
| Natixis Advisors, L.P. | 1,348,958 | $89.4M | 0.12% | +189,191+16.3% | Added |
| Royal Bank of Canada | 1,296,875 | $86.0M | 0.02% | −270,150−17.2% | Reduced |
| EULAV Asset Management | 1,230,464 | $81.6M | 2.61% | −65,000−5.0% | Reduced |
| Barclays PLC | 1,227,343 | $81.3M | 0.03% | +181,674+17.4% | Added |
| Deutsche Bank AG | 1,144,757 | $75.9M | 0.03% | +277,573+32.0% | Added |
| Anchor Capital Advisors LLC | 1,133,890 | $75.2M | 2.14% | +7,539+0.7% | Added |
| Jones Financial Companies LLLP | 1,147,307 | $74.3M | 0.04% | +1,139,805+15,193.3% | Added |
| Confluence Investment Management LLC | 1,113,400 | $73.8M | 1.15% | −68,106−5.8% | Reduced |
| HSBC Holdings PLC | 1,103,332 | $73.2M | 0.04% | −632,626−36.4% | Reduced |
| Raymond James Financial Inc | 1,100,375 | $72.9M | 0.02% | −91,685−7.7% | Reduced |
| Cornerstone Investment Partners, LLC | 1,052,504 | $69.8M | 2.93% | −47,242−4.3% | Reduced |
| Jane Street Group, LLC | 1,014,135 | $67.2M | 0.07% | +997,088+5,849.1% | Added |
| Envestnet Asset Management Inc | 896,168 | $59.4M | 0.02% | −21,442−2.3% | Reduced |
| Parnassus Investments | 806,103 | $53.4M | 0.16% | +12,405+1.6% | Added |
| Arrowstreet Capital, Limited Partnership | 803,150 | $53.2M | 0.03% | −235,727−22.7% | Reduced |
| PFA Pension, Forsikringsaktieselskab | 791,287 | $52.4M | 0.16% | −130,085−14.1% | Reduced |
| Cerity Partners LLC | 775,409 | $51.4M | 0.07% | +27,678+3.7% | Added |
| Swiss National Bank | 724,962 | $48.1M | 0.03% | −106,500−12.8% | Reduced |
| Amundi | 721,040 | $47.8M | 0.01% | −82,961−10.3% | Reduced |
| Citigroup Inc | 707,114 | $46.9M | 0.03% | +170,740+31.8% | Added |
| Stifel Financial Corp | 666,729 | $44.2M | 0.04% | −36,287−5.2% | Reduced |
| Caisse de Depot Et Placement du Quebec | 658,590 | $43.7M | 0.07% | −26,563−3.9% | Reduced |
| BloombergSen Inc. | 657,260 | $43.6M | 4.88% | −22,660−3.3% | Reduced |
| Vanguard Global Advisers, LLC | 648,408 | $43.0M | 0.02% | +648,408 | New |
| Mraz, Amerine & Associates, Inc. | 630,593 | $41.8M | 6.16% | −2,692−0.4% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 622,556 | $41.3M | 0.03% | −11,688−1.8% | Reduced |
| BNP Paribas Arbitrage, SA | 582,155 | $38.6M | 0.03% | +699+0.1% | Added |
| Rhumbline Advisers | 575,722 | $38.2M | 0.03% | −44,110−7.1% | Reduced |
| Truist Financial Corp | 572,234 | $37.9M | 0.05% | −112,727−16.5% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 563,768 | $37.4M | 0.02% | −153,588−21.4% | Reduced |
| Nuveen, LLC | 523,817 | $34.7M | 0.01% | −76,822−12.8% | Reduced |
| Brandes Investment Partners, LP | 513,217 | $34.0M | 0.24% | −304,775−37.3% | Reduced |
| Maren Capital LLC | 504,611 | $33.4M | 1.75% | −31,859−5.9% | Reduced |
| California Public Employees Retirement System | 502,561 | $33.3M | 0.02% | −270,746−35.0% | Reduced |
| Manufacturers Life Insurance Company, The | 499,839 | $33.1M | 0.03% | +19,470+4.1% | Added |
| Victory Capital Management Inc | 472,302 | $31.3M | 0.02% | −69,614−12.8% | Reduced |
| Millennium Management LLC | 459,227 | $30.4M | 0.02% | +423,988+1,203.2% | Added |
| Tudor Investment Corp Et Al | 426,345 | $28.3M | 0.15% | +351,330+468.3% | Added |
| SG Americas Securities, LLC | 425,134 | $28.2M | 0.03% | +81,094+23.6% | Added |
| Price T Rowe Associates Inc | 423,154 | $28.0M | 0.00% | −5,092−1.2% | Reduced |
| Russell Investments Group, Ltd. | 407,085 | $27.0M | 0.03% | −56,483−12.2% | Reduced |
| Vanguard Asset Management, Ltd | 405,822 | $26.9M | 0.02% | +405,822 | New |
| Franklin Resources Inc | 393,082 | $26.1M | 0.01% | +125,988+47.2% | Added |
| Dundas Partners LLP | 390,567 | $25.9M | 2.06% | −770,905−66.4% | Reduced |
| America First Investment Advisors, LLC | 380,335 | $25.2M | 4.70% | +948+0.2% | Added |
| Aware Super Pty Ltd as trustee of Aware Super | 364,949 | $24.2M | 0.37% | +364,949 | New |
| APG Asset Management N.V. | 402,127 | $23.1M | 0.07% | −45,091−10.1% | Reduced |
| Zacks Investment Management | 328,412 | $21.8M | 0.17% | −8,411−2.5% | Reduced |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 311,018 | $20.6M | 0.11% | +116,225+59.7% | Added |
| Bank of Nova Scotia | 310,476 | $20.6M | 0.04% | −33,327−9.7% | Reduced |
| Alliancebernstein L.P. | 292,875 | $20.5M | 0.01% | −34,489−10.5% | Reduced |
| California State Teachers Retirement System | 309,615 | $20.5M | 0.02% | −73,915−19.3% | Reduced |
| Wallington Asset Management, LLC | 308,444 | $20.4M | 2.72% | −9,421−3.0% | Reduced |
| CWM, LLC | 280,114 | $18.6M | 0.05% | −13,977−4.8% | Reduced |
| Rockefeller Capital Management L.P. | 278,500 | $18.5M | 0.03% | −3,766−1.3% | Reduced |
| Silvercrest Asset Management Group LLC | 274,047 | $18.2M | 0.13% | −5,740−2.1% | Reduced |
| Two Sigma Investments, LP | 272,989 | $18.1M | 0.02% | +246,436+928.1% | Added |
| Barlow Wealth Partners, Inc. | 270,284 | $18.1M | 2.01% | +627+0.2% | Added |
| Danske Bank A/S | 272,160 | $18.0M | 0.04% | −236,747−46.5% | Reduced |
| Quantinno Capital Management LP | 263,179 | $17.4M | 0.03% | +20,107+8.3% | Added |
| Philo Smith Capital Corp | 260,381 | $17.3M | 4.92% | 00.0% | Unchanged |
| Storebrand Asset Management AS | 258,261 | $17.1M | 0.05% | −41,557−13.9% | Reduced |
| New York State Teachers Retirement System | 257,232 | $17.0M | 0.03% | −11,273−4.2% | Reduced |
| Fairholme Capital Management LLC | 256,350 | $17.0M | 1.12% | −3,800−1.5% | Reduced |
| State Board of Administration of Florida Retirement System | 253,463 | $16.8M | 0.03% | −13,651−5.1% | Reduced |
| Aviva PLC | 249,409 | $16.5M | 0.03% | −1,524−0.6% | Reduced |
| Bank of Montreal | 247,229 | $16.4M | 0.01% | −12,717−4.9% | Reduced |
| Illinois Municipal Retirement Fund | 245,499 | $16.3M | 0.21% | −5,177−2.1% | Reduced |