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 |
|---|---|---|---|---|---|
| Pictet Asset Management Holding SA | 171,834 | $11.4M | 0.01% | −34,954−16.9% | Reduced |
| Quantbot Technologies LP | 172,464 | $11.4M | 0.47% | +161,320+1,447.6% | Added |
| SEI Investments Co | 173,565 | $11.5M | 0.01% | −39,611−18.6% | Reduced |
| HRT Financial LP | 176,640 | $11.7M | 0.03% | +176,640 | New |
| GHP Investment Advisors, Inc. | 179,058 | $11.9M | 0.49% | +660.0% | Added |
| Susquehanna Fundamental Investments, LLC | 180,699 | $12.0M | 0.45% | +131,258+265.5% | Added |
| Standard Life Aberdeen plc | 181,035 | $12.0M | 0.02% | −1,830−1.0% | Reduced |
| American Century Companies Inc | 183,583 | $12.2M | 0.01% | −184,727−50.2% | Reduced |
| Nisa Investment Advisors, LLC | 186,125 | $12.3M | 0.05% | −4,851−2.5% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 192,096 | $12.8M | 0.01% | −287,001−59.9% | Reduced |
| Stansberry Asset Management, LLC | 193,328 | $12.8M | 1.32% | −107,815−35.8% | Reduced |
| Mercer Global Advisors Inc | 196,070 | $13.0M | 0.02% | +3,204+1.7% | Added |
| Janney Montgomery Scott LLC | 196,863 | $13.0M | 0.03% | −6,671−3.3% | Reduced |
| D. E. Shaw & Co., Inc. | 200,813 | $13.3M | 0.01% | +200,813 | New |
| Isthmus Partners, LLC | 204,520 | $13.6M | 1.42% | −4,208−2.0% | Reduced |
| RMB Capital Management, LLC | 212,241 | $14.1M | 0.25% | −590.0% | Reduced |
| Korea Investment CORP | 214,675 | $14.2M | 0.03% | +100,879+88.6% | Added |
| Townsend & Associates, Inc | 214,024 | $14.4M | 1.25% | +7,216+3.5% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 218,824 | $14.5M | 0.04% | −25,918−10.6% | Reduced |
| State of Wisconsin Investment Board | 225,725 | $15.0M | 0.03% | −20,840−8.5% | Reduced |
| Hutchinson Capital Management | 232,906 | $15.4M | 2.84% | −2,072−0.9% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 226,233 | $15.5M | 0.03% | −27,168−10.7% | Reduced |
| Great West Life Assurance Co | 237,896 | $15.8M | 0.03% | −8,659−3.5% | Reduced |
| Gilder Gagnon Howe & Co LLC | 240,239 | $15.9M | 0.19% | −1,525−0.6% | Reduced |
| Captrust Financial Advisors | 240,875 | $16.0M | 0.03% | −707,293−74.6% | Reduced |
| LPL Financial LLC | 244,510 | $16.2M | 0.00% | −53,899−18.1% | Reduced |
| Illinois Municipal Retirement Fund | 245,499 | $16.3M | 0.21% | −5,177−2.1% | Reduced |
| Bank of Montreal | 247,229 | $16.4M | 0.01% | −12,717−4.9% | Reduced |
| Aviva PLC | 249,409 | $16.5M | 0.03% | −1,524−0.6% | Reduced |
| State Board of Administration of Florida Retirement System | 253,463 | $16.8M | 0.03% | −13,651−5.1% | Reduced |
| Fairholme Capital Management LLC | 256,350 | $17.0M | 1.12% | −3,800−1.5% | Reduced |
| New York State Teachers Retirement System | 257,232 | $17.0M | 0.03% | −11,273−4.2% | Reduced |
| Storebrand Asset Management AS | 258,261 | $17.1M | 0.05% | −41,557−13.9% | Reduced |
| Philo Smith Capital Corp | 260,381 | $17.3M | 4.92% | 00.0% | Unchanged |
| Quantinno Capital Management LP | 263,179 | $17.4M | 0.03% | +20,107+8.3% | Added |
| Danske Bank A/S | 272,160 | $18.0M | 0.04% | −236,747−46.5% | Reduced |
| Barlow Wealth Partners, Inc. | 270,284 | $18.1M | 2.01% | +627+0.2% | Added |
| Two Sigma Investments, LP | 272,989 | $18.1M | 0.02% | +246,436+928.1% | Added |
| Silvercrest Asset Management Group LLC | 274,047 | $18.2M | 0.13% | −5,740−2.1% | Reduced |
| Rockefeller Capital Management L.P. | 278,500 | $18.5M | 0.03% | −3,766−1.3% | Reduced |
| CWM, LLC | 280,114 | $18.6M | 0.05% | −13,977−4.8% | Reduced |
| Wallington Asset Management, LLC | 308,444 | $20.4M | 2.72% | −9,421−3.0% | Reduced |
| California State Teachers Retirement System | 309,615 | $20.5M | 0.02% | −73,915−19.3% | Reduced |
| Alliancebernstein L.P. | 292,875 | $20.5M | 0.01% | −34,489−10.5% | Reduced |
| Bank of Nova Scotia | 310,476 | $20.6M | 0.04% | −33,327−9.7% | Reduced |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 311,018 | $20.6M | 0.11% | +116,225+59.7% | Added |
| Zacks Investment Management | 328,412 | $21.8M | 0.17% | −8,411−2.5% | Reduced |
| APG Asset Management N.V. | 402,127 | $23.1M | 0.07% | −45,091−10.1% | Reduced |
| Aware Super Pty Ltd as trustee of Aware Super | 364,949 | $24.2M | 0.37% | +364,949 | New |
| America First Investment Advisors, LLC | 380,335 | $25.2M | 4.70% | +948+0.2% | Added |
| Dundas Partners LLP | 390,567 | $25.9M | 2.06% | −770,905−66.4% | Reduced |
| Franklin Resources Inc | 393,082 | $26.1M | 0.01% | +125,988+47.2% | Added |
| Vanguard Asset Management, Ltd | 405,822 | $26.9M | 0.02% | +405,822 | New |
| Russell Investments Group, Ltd. | 407,085 | $27.0M | 0.03% | −56,483−12.2% | Reduced |
| Price T Rowe Associates Inc | 423,154 | $28.0M | 0.00% | −5,092−1.2% | Reduced |
| SG Americas Securities, LLC | 425,134 | $28.2M | 0.03% | +81,094+23.6% | Added |
| Tudor Investment Corp Et Al | 426,345 | $28.3M | 0.15% | +351,330+468.3% | Added |
| Millennium Management LLC | 459,227 | $30.4M | 0.02% | +423,988+1,203.2% | Added |
| Victory Capital Management Inc | 472,302 | $31.3M | 0.02% | −69,614−12.8% | Reduced |
| Manufacturers Life Insurance Company, The | 499,839 | $33.1M | 0.03% | +19,470+4.1% | Added |
| California Public Employees Retirement System | 502,561 | $33.3M | 0.02% | −270,746−35.0% | Reduced |
| Maren Capital LLC | 504,611 | $33.4M | 1.75% | −31,859−5.9% | Reduced |
| Brandes Investment Partners, LP | 513,217 | $34.0M | 0.24% | −304,775−37.3% | Reduced |
| Nuveen, LLC | 523,817 | $34.7M | 0.01% | −76,822−12.8% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 563,768 | $37.4M | 0.02% | −153,588−21.4% | Reduced |
| Truist Financial Corp | 572,234 | $37.9M | 0.05% | −112,727−16.5% | Reduced |
| Rhumbline Advisers | 575,722 | $38.2M | 0.03% | −44,110−7.1% | Reduced |
| BNP Paribas Arbitrage, SA | 582,155 | $38.6M | 0.03% | +699+0.1% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 622,556 | $41.3M | 0.03% | −11,688−1.8% | Reduced |
| Mraz, Amerine & Associates, Inc. | 630,593 | $41.8M | 6.16% | −2,692−0.4% | Reduced |
| Vanguard Global Advisers, LLC | 648,408 | $43.0M | 0.02% | +648,408 | New |
| BloombergSen Inc. | 657,260 | $43.6M | 4.88% | −22,660−3.3% | Reduced |
| Caisse de Depot Et Placement du Quebec | 658,590 | $43.7M | 0.07% | −26,563−3.9% | Reduced |
| Stifel Financial Corp | 666,729 | $44.2M | 0.04% | −36,287−5.2% | Reduced |
| Citigroup Inc | 707,114 | $46.9M | 0.03% | +170,740+31.8% | Added |
| Amundi | 721,040 | $47.8M | 0.01% | −82,961−10.3% | Reduced |
| Swiss National Bank | 724,962 | $48.1M | 0.03% | −106,500−12.8% | Reduced |
| Cerity Partners LLC | 775,409 | $51.4M | 0.07% | +27,678+3.7% | Added |
| PFA Pension, Forsikringsaktieselskab | 791,287 | $52.4M | 0.16% | −130,085−14.1% | Reduced |
| Arrowstreet Capital, Limited Partnership | 803,150 | $53.2M | 0.03% | −235,727−22.7% | Reduced |
| Parnassus Investments | 806,103 | $53.4M | 0.16% | +12,405+1.6% | Added |
| Envestnet Asset Management Inc | 896,168 | $59.4M | 0.02% | −21,442−2.3% | Reduced |
| Jane Street Group, LLC | 1,014,135 | $67.2M | 0.07% | +997,088+5,849.1% | Added |
| Cornerstone Investment Partners, LLC | 1,052,504 | $69.8M | 2.93% | −47,242−4.3% | Reduced |
| Raymond James Financial Inc | 1,100,375 | $72.9M | 0.02% | −91,685−7.7% | Reduced |
| HSBC Holdings PLC | 1,103,332 | $73.2M | 0.04% | −632,626−36.4% | Reduced |
| Confluence Investment Management LLC | 1,113,400 | $73.8M | 1.15% | −68,106−5.8% | Reduced |
| Jones Financial Companies LLLP | 1,147,307 | $74.3M | 0.04% | +1,139,805+15,193.3% | Added |
| Anchor Capital Advisors LLC | 1,133,890 | $75.2M | 2.14% | +7,539+0.7% | Added |
| Deutsche Bank AG | 1,144,757 | $75.9M | 0.03% | +277,573+32.0% | Added |
| Barclays PLC | 1,227,343 | $81.3M | 0.03% | +181,674+17.4% | Added |
| EULAV Asset Management | 1,230,464 | $81.6M | 2.61% | −65,000−5.0% | Reduced |
| Royal Bank of Canada | 1,296,875 | $86.0M | 0.02% | −270,150−17.2% | Reduced |
| Natixis Advisors, L.P. | 1,348,958 | $89.4M | 0.12% | +189,191+16.3% | Added |
| Chilton Investment Co LLC | 1,388,792 | $92.0M | 2.16% | −249,535−15.2% | Reduced |
| FMR LLC | 1,389,362 | $92.1M | 0.00% | +119,829+9.4% | Added |
| Citadel Advisors LLC | 1,394,141 | $92.4M | 0.07% | +1,281,891+1,142.0% | Added |
| Madison Asset Management, LLC | 1,618,906 | $107.3M | 1.33% | −105,692−6.1% | Reduced |
| Vanguard Fiduciary Trust Co | 1,658,869 | $109.9M | 0.03% | +1,658,869 | New |
| AQR Capital Management LLC | 1,848,105 | $122.5M | 0.06% | +119,064+6.9% | Added |