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WRB

Berkley W R Corp
$73.84 +1.65 (+2.29%) At close · Jul 13
Market Cap
$27.49B
Shares
372,276,732

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.
Holders: 918
Total Value: $17,524,938,591
Total Shares: 264,292,042
Showing 1–100 of 927 holdings by value · page 1 of 10

Institutional Ownership Trend

26 quarters

Superinvestors Holding WRB

All superinvestors →
Bruce Berkowitz $16,990,878 Joel Greenblatt $11,077,111 Mario Gabelli $6,045,995 Thomas Gayner $4,026,510

Holder Concentration

Across 921 13F filers
Top Holder
22.2%
Jun 2023 → Mar 2026 · range 13.5% – 22.2%
of institutional value
Top 5
47.6%
Jun 2023 → Mar 2026 · range 39.3% – 48.2%
of institutional value
Top 10
58.5%
Jun 2023 → Mar 2026 · range 51.8% – 59.6%
of institutional value
HHI
716
Jun 2023 → Mar 2026 · range 428 – 716
Broadly held
Showing 100 of 927
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mid Mitsui Sumitomo Insurance Co Ltd Insurance $3,895,968,226 22.23% 58,780,450
Mega BlackRock, Inc. $1,543,038,688 8.80% 23,280,608
Mega VANGUARD CAPITAL MANAGEMENT LLC $1,254,404,741 7.16% 18,925,841
Mega STATE STREET CORP $954,790,574 5.45% 14,405,410
Mega MORGAN STANLEY $690,138,173 3.94% 10,412,465
Mega GEODE CAPITAL MANAGEMENT, LLC $545,461,466 3.11% 8,229,654
Large KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC $515,142,276 2.94% 7,772,213
Mega Invesco Ltd. $334,830,978 1.91% 5,051,765
Mega FIRST TRUST ADVISORS LP $263,325,734 1.50% 3,972,929
Mega WELLS FARGO & COMPANY/MN $251,179,060 1.43% 3,789,666
Mega DIMENSIONAL FUND ADVISORS LP $249,754,968 1.43% 3,768,180
Mega JPMORGAN CHASE & CO $216,998,327 1.24% 3,273,964
Mega UBS Group AG $216,588,191 1.24% 3,267,776
Mega BANK OF AMERICA CORP /DE/ Bank $192,511,716 1.10% 2,904,522
Mega GOLDMAN SACHS GROUP INC $188,983,101 1.08% 2,851,284
Mega NORTHERN TRUST CORP Bank $179,313,576 1.02% 2,705,395
Mega JANUS HENDERSON GROUP PLC $162,908,947 0.93% 2,457,890
Large 1832 Asset Management L.P. $152,041,083 0.87% 2,293,921
Large ROYAL LONDON ASSET MANAGEMENT LTD $151,422,161 0.86% 2,284,583
Large Polar Capital Holdings Plc $150,787,000 0.86% 2,275,000
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $144,191,604 0.82% 2,175,492
Mega Bank of New York Mellon Corp Bank $134,809,006 0.77% 2,033,932
Mega PRINCIPAL FINANCIAL GROUP INC $127,150,225 0.73% 1,918,380
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $126,018,495 0.72% 1,901,305
Mega Legal & General Group Plc $124,012,795 0.71% 1,871,044
Mega AQR CAPITAL MANAGEMENT LLC $122,492,397 0.70% 1,848,105
Mega VANGUARD FIDUCIARY TRUST CO Bank $109,949,837 0.63% 1,658,869
Mid Madison Asset Management, LLC $107,301,089 0.61% 1,618,906
Mega CITADEL ADVISORS LLC $92,403,665 0.53% 1,394,141
Mega FMR LLC $92,086,911 0.53% 1,389,362
Mid CHILTON INVESTMENT CO INC. $92,049,133 0.53% 1,388,792
Large NATIXIS ADVISORS, LLC $89,408,935 0.51% 1,348,958
Mega ROYAL BANK OF CANADA Bank $85,956,871 0.49% 1,296,875
Mid EULAV Asset Management $81,555,153 0.47% 1,230,464
Mega BARCLAYS PLC $81,348,292 0.46% 1,227,343
Large JONES FINANCIAL COMPANIES LLLP $76,043,507 0.43% 1,147,307
Mega DEUTSCHE BANK AG\ Bank $75,874,491 0.43% 1,144,757
Mid ANCHOR CAPITAL ADVISORS LLC $75,154,229 0.43% 1,133,890
Mid CONFLUENCE INVESTMENT MANAGEMENT LLC $73,264,709 0.42% 1,031,752
Mega HSBC HOLDINGS PLC $73,128,842 0.42% 1,103,332
Mega RAYMOND JAMES FINANCIAL INC $72,932,854 0.42% 1,100,375
Mid Cornerstone Investment Partners, LLC $69,759,965 0.40% 1,052,504
Mega JANE STREET GROUP, LLC $67,216,866 0.38% 1,014,135
Mega ENVESTNET ASSET MANAGEMENT INC $59,398,015 0.34% 896,168
Large PARNASSUS INVESTMENTS, LLC $53,428,506 0.30% 806,103
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $53,232,782 0.30% 803,150
Large PFA Pension, Forsikringsaktieselskab Pension $52,446,502 0.30% 791,287
Large Cerity Partners LLC $51,394,108 0.29% 775,409
Mega Swiss National Bank Bank $48,050,481 0.27% 724,962
Mega Amundi $47,790,530 0.27% 721,040
Mega CITIGROUP INC $46,867,514 0.27% 707,114
Large STIFEL FINANCIAL CORP $44,190,795 0.25% 666,729
Large Caisse de depot et placement du Quebec $43,651,345 0.25% 658,590
Mid BloombergSen Inc. $43,563,192 0.25% 657,260
Mega Vanguard Global Advisers, LLC $42,976,482 0.25% 648,408
Small Mraz, Amerine & Associates, Inc. $41,795,704 0.24% 630,593
Mega Mitsubishi UFJ Asset Management Co., Ltd. $41,263,011 0.24% 622,556
Mega BNP PARIBAS ARBITRAGE, SA $38,585,233 0.22% 582,155
Mega RHUMBLINE ADVISERS $38,158,854 0.22% 575,722
Large TRUIST FINANCIAL CORP $37,927,668 0.22% 572,234
Mega Sumitomo Mitsui Trust Group, Inc. $37,366,543 0.21% 563,768
Mega Nuveen, LLC $34,718,589 0.20% 523,817
Large BRANDES INVESTMENT PARTNERS, LP $34,016,021 0.19% 513,217
Mid Maren Capital LLC $33,445,617 0.19% 504,611
Mega California Public Employees Retirement System Pension $33,309,743 0.19% 502,561
Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE Insurance $33,129,328 0.19% 499,839
Mega VICTORY CAPITAL MANAGEMENT INC $31,304,176 0.18% 472,302
Mega MILLENNIUM MANAGEMENT LLC $30,437,565 0.17% 459,227
Large TUDOR INVESTMENT CORP ET AL $28,258,146 0.16% 426,345
Large SG Americas Securities, LLC Broker-Dealer $28,177,881 0.16% 425,134
Mega PRICE T ROWE ASSOCIATES INC /MD/ $28,046,647 0.16% 423,154
Large Russell Investments Group, Ltd. $26,981,588 0.15% 407,085
Mega VANGUARD ASSET MANAGEMENT, Ltd $26,897,882 0.15% 405,822
Large APG Asset Management N.V. $26,652,977 0.15% 402,127
Mega FRANKLIN RESOURCES INC $26,053,472 0.15% 393,082
Mid Dundas Partners LLP $25,886,780 0.15% 390,567
Small America First Investment Advisors, LLC $25,208,603 0.14% 380,335
Mid Aware Super Pty Ltd as trustee of Aware Super $24,188,819 0.14% 364,949
Large ZACKS INVESTMENT MANAGEMENT $21,767,147 0.12% 328,412
Large FJARDE AP-FONDEN /FOURTH SWEDISH NATIONAL PENSION FUND Pension $20,614,273 0.12% 311,018
Large BANK OF NOVA SCOTIA Bank $20,578,349 0.12% 310,476
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $20,521,282 0.12% 309,615
Small Wallington Asset Management, LLC $20,443,668 0.12% 308,444
Mega ALLIANCEBERNSTEIN L.P. $19,411,755 0.11% 292,875
Large CWM, LLC $18,565,955 0.11% 280,114
Large Rockefeller Capital Management L.P. $18,458,977 0.11% 278,500
Large SILVERCREST ASSET MANAGEMENT GROUP LLC $18,163,835 0.10% 274,047
Mega TWO SIGMA INVESTMENTS, LP $18,093,710 0.10% 272,989
Large DANSKE BANK A/S Bank $18,038,764 0.10% 272,160
Small BARLOW WEALTH PARTNERS, LLC $17,914,423 0.10% 270,284
Large Quantinno Capital Management LP $17,443,504 0.10% 263,179
Small PhiloSmith Capital Corp $17,258,052 0.10% 260,381
Large STOREBRAND ASSET MANAGEMENT AS $17,117,539 0.10% 258,261
Large NEW YORK STATE TEACHERS RETIREMENT SYSTEM Pension $17,049,336 0.10% 257,232
Mid FAIRHOLME CAPITAL MANAGEMENT LLC $16,990,878 0.10% 256,350
Large STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM Pension $16,799,527 0.10% 253,463
Large AVIVA PLC $16,530,828 0.09% 249,409
Mega BANK OF MONTREAL /CAN/ Bank $16,386,334 0.09% 247,229
Mid Illinois Municipal Retirement Fund Pension $16,271,673 0.09% 245,499
Mega LPL Financial LLC $16,206,122 0.09% 244,510
Key facts CIK 11544 CUSIP 084423102 13F (30d) 80 filings 58 filers Visit website Investor relations

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