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WRB · Berkley W R Corp · Shareholders & Ownership

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$75.55 +1.21 (+1.63%) At close · Oct 22
Market Cap
$27.99B
Shares
371.23M
Volume · Oct 22 1.75M Avg daily vol (3M) 2.5M

Every disclosed holder of WRB in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

Who Owns WRB

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

No chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.

Holder group Shares % Out
Institutional (13F) 278,628,475 75.06%
Insiders (Forms 3, 4, 5) 184,046,465 49.58%
13D/G-only blocks 0 0.00%
Remaining 91,447,411 -24.63%
Registered funds (N-PORT, not summed) 85,908,631 23.14%

Shares outstanding: 371,227,529, the issuer's latest cover-page count restated onto today's split basis.

Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of WRB

# Holder Shares
1
BERKLEY WILLIAM R
Insider CIK 918186 · Jun 3, 2026
Director, Executive Chairman, 10% Owner, issuer-wide
91,001,464
1.1
WR Berkley & Others LLC
13D CIK 918186 · Holding company · Mar 4, 2026
not summed
95,551,144
2
BERKLEY WILLIAM R JR
Insider CIK 1236253 · Aug 3, 2026
Director, President and CEO, issuer-wide
90,745,272
2.1
W. Robert Berkley, Jr.
13D CIK 1236253 · Unknown · Jul 17, 2026
Item 4 purpose: none of the classified purposes
not summed
95,557,324
3
Mitsui Sumitomo Insurance Co Ltd
13F CIK 1142206 · Insurance company · Jun 30, 2026
carried, not yet filed for the newest quarter
58,780,450
3.1
MITSUI SUMITOMO INSURANCE CO LTD
Insider CIK 1142206 · Mar 3, 2026
10% Owner, issuer-wide, not summed
58,780,450
4
BlackRock, Inc.
13F CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
21,934,626
4.1
iShares Core S&P 500 ETF
Fund S000004310 · Registered fund · Jun 30, 2026
iShares Trust, not summed
4,045,493
4.2
iShares Russell Mid-Cap ETF
Fund S000004338 · Registered fund · Jun 30, 2026
iShares Trust, not summed
935,182
4.3
iShares Russell 1000 Value ETF
Fund S000004345 · Registered fund · Jun 30, 2026
iShares Trust, not summed
507,700
4.4
iShares Core S&P Total U.S. Stock Market ETF
Fund S000004317 · Registered fund · Jun 30, 2026
iShares Trust, not summed
385,658
4.5
iShares S&P 500 Growth ETF
Fund S000004311 · Registered fund · Jun 30, 2026
iShares Trust, not summed
353,896
5
VANGUARD CAPITAL MANAGEMENT LLC
13F CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
18,690,969
6
VANGUARD PORTFOLIO MANAGEMENT LLC
13F CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
14,550,971
7
STATE STREET CORP
13F CIK 93751 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
14,126,628
7.1
State Street(R) Financial Select Sector SPDR(R) ETF
Fund S000006411 · Registered fund · Jun 30, 2026
SELECT SECTOR SPDR TRUST, not summed
1,989,377
7.2
State Street(R) SPDR(R) S&P(R) Dividend ETF
Fund S000006981 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
738,551
7.3
State Street(R) SPDR(R) Portfolio S&P 500(R) ETF
Fund S000006983 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
701,880
7.4
State Street(R) SPDR(R) Portfolio S&P 500(R) Growth ETF
Fund S000006984 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
250,231
7.5
State Street(R) SPDR(R) Portfolio S&P 500(R) Value ETF
Fund S000006985 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
153,836
8
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
8,866,248
9
GEODE CAPITAL MANAGEMENT, LLC
13F CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
8,268,721
10
MORGAN STANLEY
13F CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
8,252,790
10.1
Global Strategist Portfolio
Fund S000004124 · Registered fund · Jun 30, 2026
MORGAN STANLEY INSTITUTIONAL FUND TRUST, not summed
809
10.2
E*TRADE No Fee Total Market Index Fund
Fund S000090722 · Registered fund · Jul 31, 2026
E Trade Trust, not summed
545
10.3
E*TRADE No Fee Large Cap Index Fund
Fund S000090720 · Registered fund · Jul 31, 2026
E Trade Trust, not summed
508
10.4
Global Strategist Portfolio
Fund S000004181 · Registered fund · Jun 30, 2026
MORGAN STANLEY VARIABLE INSURANCE FUND INC., not summed
107
11
VANGUARD 500 INDEX FUND
Fund S000002839 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
7,618,198
12
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC
13F CIK 1021223 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
6,377,064
13
VANGUARD MID-CAP INDEX FUND
Fund S000002844 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
6,050,140
14
Invesco Ltd.
13F CIK 914208 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
5,028,284
14.1
Invesco S&P 500 Equal Weight ETF
Fund S000060812 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
2,734,583
14.2
Invesco S&P 500 Low Volatility ETF
Fund S000030967 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
981,547
14.3
Invesco S&P 500 GARP ETF
Fund S000032768 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
296,327
14.4
Invesco Equally-Weighted S&P 500 Fund
Fund S000027817 · Registered fund · May 31, 2026
AIM Counselor Series Trust (Invesco Counselor Series Trust), not summed
198,120
14.5
Invesco KBW Property & Casualty Insurance ETF
Fund S000030363 · Registered fund · May 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
147,279
15
GOLDMAN SACHS GROUP INC
13F CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
4,158,216
15.1
Goldman Sachs ActiveBeta(R) U.S. Large Cap Equity ETF
Fund S000048295 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
149,964
15.2
Goldman Sachs U.S. Tax-Managed Equity Fund
Fund S000009340 · Registered fund · Jun 30, 2026
Goldman Sachs Trust, not summed
97,709
15.3
Goldman Sachs Equal Weight U.S. Large Cap Equity ETF
Fund S000058070 · Registered fund · May 31, 2026
Goldman Sachs ETF Trust, not summed
52,629
15.4
Goldman Sachs Global Managed Beta Fund
Fund S000048066 · Registered fund · May 31, 2026
GOLDMAN SACHS TRUST, not summed
18,799
15.5
Goldman Sachs Absolute Return Tracker Fund
Fund S000020314 · Registered fund · Jun 30, 2026
GOLDMAN SACHS TRUST, not summed
15,427
16
DIMENSIONAL FUND ADVISORS LP
13F CIK 354204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
4,041,846
16.1
Dimensional U.S. Core Equity 2 ETF
Fund S000070903 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
517,040
16.2
THE U.S. LARGE CAP VALUE SERIES
Fund S000000993 · Registered fund · Jul 31, 2026
DFA INVESTMENT TRUST CO, not summed
453,187
16.3
U.S. CORE EQUITY 1 PORTFOLIO
Fund S000000979 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
334,452
16.4
U.S. CORE EQUITY 2 PORTFOLIO
Fund S000000980 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
306,557
16.5
Dimensional U.S. Marketwide Value ETF
Fund S000075030 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
185,094
17
WELLS FARGO & COMPANY/MN
13F CIK 72971 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
3,720,958
18
AQR CAPITAL MANAGEMENT LLC
13F CIK 1167557 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
3,680,160
18.1
AQR Large Cap Defensive Style Fund
Fund S000037429 · Registered fund · Jun 30, 2026
AQR Funds, not summed
84,350
18.2
AQR Managed Futures Strategy HV Fund
Fund S000041117 · Registered fund · Jun 30, 2026
AQR Funds, not summed
69,889
18.3
AQR Style Premia Alternative Fund
Fund S000042050 · Registered fund · Jun 30, 2026
AQR Funds, not summed
19,236
18.4
AQR Managed Futures Strategy Fund
Fund S000027214 · Registered fund · Jun 30, 2026
AQR Funds, not summed
8,589
18.5
AQR Trend Total Return Fund
Fund S000074759 · Registered fund · Jun 30, 2026
AQR Funds, not summed
7,047
19
FIRST TRUST ADVISORS LP
13F CIK 1125816 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
3,624,858
19.1
First Trust Capital Strength ETF
Fund S000012555 · Registered fund · Jun 30, 2026
First Trust Exchange-Traded Fund, not summed
2,322,187
19.2
FT Vest SMID Rising Dividend Achievers Target Income ETF
Fund S000081275 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded Fund IV, not summed
74,215
19.3
First Trust Large Cap Value AlphaDEX Fund
Fund S000017340 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
68,179
19.4
First Trust Capital Strength Portfolio
Fund S000068384 · Registered fund · Jun 30, 2026
First Trust Variable Insurance Trust, not summed
59,177
19.5
First Trust Financials AlphaDEX Fund
Fund S000017699 · Registered fund · Jul 31, 2026
First Trust Exchange-Traded AlphaDEX Fund, not summed
48,013
20
Eaton Vance Atlanta Capital SMID-Cap Fund
Fund S000005198 · Registered fund · Jun 30, 2026
Eaton Vance Growth Trust, not summed
3,580,233
21
NORGES BANK
13F CIK 1374170 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
3,148,633
22
BANK OF AMERICA CORP /DE/
13F CIK 70858 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
2,849,413
23
UBS Group AG
13F CIK 1610520 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
2,835,322
24
VANGUARD VALUE INDEX FUND
Fund S000002840 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
2,655,203
25
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
13F CIK 1164508 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
2,588,583
26
NORTHERN TRUST CORP
13F CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
2,552,698
26.1
Stock Index Fund
Fund S000001247 · Registered fund · Jun 30, 2026
Northern Funds, not summed
89,081
26.2
FlexShares US Quality Low Volatility Index Fund
Fund S000065837 · Registered fund · Jul 31, 2026
FlexShares Trust, not summed
10,332
26.3
FlexShares Morningstar US Market Factor Tilt Index Fund
Fund S000033312 · Registered fund · Jul 31, 2026
FlexShares Trust, not summed
6,640
27
1832 Asset Management L.P.
13F CIK 944388 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
2,293,864
28
JPMORGAN CHASE & CO
13F CIK 19617 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
2,154,477
29
Polar Capital Holdings Plc
13F CIK 1837309 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
2,130,000
30
ROYAL LONDON ASSET MANAGEMENT LTD
13F CIK 863748 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
2,115,249
31
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
13F CIK 861177 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
2,041,622
31.1
PACE Small/Medium Co Value Equity Investments
Fund S000002973 · Registered fund · Jul 31, 2026
PACE SELECT ADVISORS TRUST, not summed
24,997
31.2
UBS U.S. Allocation Fund
Fund S000002487 · Registered fund · May 31, 2026
UBS INVESTMENT TRUST, not summed
187
31.3
UBS GLOBAL ALLOCATION FUND
Fund S000002979 · Registered fund · Jun 30, 2026
UBS FUNDS, not summed
87
32
TWO SIGMA INVESTMENTS, LP
13F CIK 1179392 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
2,013,358
33
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,917,449
33.1
Schwab S&P 500 Index Fund
Fund S000005911 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
658,714
33.2
Schwab U.S. Large-Cap ETF
Fund S000026632 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
316,026
33.3
Schwab Total Stock Market Index Fund
Fund S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
179,319
33.4
Schwab U.S. Broad Market ETF
Fund S000026631 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
176,737
33.5
Schwab U.S. Large-Cap Value ETF
Fund S000026634 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
150,165
34
VANGUARD MID-CAP VALUE INDEX FUND
Fund S000012757 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
1,793,310
35
VANGUARD DIVIDEND APPRECIATION INDEX FUND
Fund S000011322 · Registered fund · Jul 31, 2026
VANGUARD SPECIALIZED FUNDS, not summed
1,664,001
36
VANGUARD FIDUCIARY TRUST CO
13F CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
1,632,946
37
Legal & General Group Plc
13F CIK 764068 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
1,599,505
38
VANGUARD INSTITUTIONAL INDEX FUND
Fund S000002853 · Registered fund · Jun 30, 2026
VANGUARD INSTITUTIONAL INDEX FUNDS, not summed
1,595,111
39
Madison Asset Management, LLC
13F CIK 1299351 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,497,784
39.1
Madison Mid Cap Fund
Fund S000020651 · Registered fund · Jul 31, 2026
MADISON FUNDS, not summed
691,754
39.2
Mid Cap Fund
Fund S000019983 · Registered fund · Jun 30, 2026
ULTRA SERIES FUND, not summed
41,458
40
CITADEL ADVISORS LLC
13F CIK 1423053 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,475,954
41
NATIXIS ADVISORS, LLC
13F CIK 1018331 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,466,496
41.1
Gateway Equity Call Premium Fund
Fund S000046840 · Registered fund · Jun 30, 2026
Gateway Trust, not summed
9,505
42
PRINCIPAL FINANCIAL GROUP INC
13F CIK 1126328 · Insurance company · Jun 30, 2026
carried, not yet filed for the newest quarter
1,461,348
42.1
MidCap Fund
Fund S000007075 · Registered fund · Jul 31, 2026
Principal Funds, Inc, not summed
739,980
42.2
LargeCap S&P 500 Index Fund
Fund S000007016 · Registered fund · Jul 31, 2026
Principal Funds, Inc, not summed
60,615
42.3
MidCap Account
Fund S000007662 · Registered fund · Jun 30, 2026
Principal Variable Contract Funds, Inc, not summed
14,930
42.4
LargeCap S&P 500 Index Account
Fund S000007660 · Registered fund · Jun 30, 2026
Principal Variable Contract Funds, Inc, not summed
11,087
42.5
MidCap Value Fund I
Fund S000007173 · Registered fund · Jul 31, 2026
Principal Funds, Inc, not summed
5,091
43
FMR LLC
13F CIK 315066 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
1,446,808
43.1
Fidelity 500 Index Fund
Fund S000006027 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
3,812,931
43.2
Fidelity Dividend Growth Fund
Fund S000007197 · Registered fund · Jul 31, 2026
Fidelity Securities Fund, not summed
891,700
43.3
Fidelity Mid Cap Index Fund
Fund S000033637 · Registered fund · Jul 31, 2026
Fidelity Salem Street Trust, not summed
859,625
43.4
Fidelity Total Market Index Fund
Fund S000006026 · Registered fund · May 31, 2026
Fidelity Concord Street Trust, not summed
563,059
43.5
Fidelity SAI U.S. Low Volatility Index Fund
Fund S000049309 · Registered fund · Jul 31, 2026
Fidelity Salem Street Trust, not summed
501,408
44
BARCLAYS PLC
13F CIK 312069 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
1,440,408
45
Bank of New York Mellon Corp
13F CIK 1390777 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
1,347,506
45.1
BNY Mellon US Large Cap Core Equity ETF
Fund S000067260 · Registered fund · Jul 31, 2026
BNY Mellon ETF Trust, not summed
25,000
46
CHILTON INVESTMENT CO INC.
13F CIK 1332632 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
1,339,877
47
Cornerstone Investment Partners, LLC
13F CIK 1328062 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
1,336,146
48
DEUTSCHE BANK AG\
13F CIK 948046 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
1,305,627
48.1
Deutsche DWS Equity 500 Index Portfolio
Fund S000009010 · Registered fund · Jun 30, 2026
DEUTSCHE DWS EQUITY 500 INDEX PORTFOLIO, not summed
9,159
48.2
Xtrackers MSCI USA Climate Action Equity ETF
Fund S000079909 · Registered fund · May 29, 2026
DBX ETF Trust, not summed
6,483
48.3
Xtrackers Russell US Multifactor ETF
Fund S000048521 · Registered fund · Aug 31, 2026
DBX ETF Trust, not summed
5,456
48.4
DWS Equity 500 Index VIP
Fund S000006221 · Registered fund · Jun 30, 2026
DEUTSCHE DWS INVESTMENTS VIT FUNDS, not summed
4,007
48.5
Xtrackers MSCI Kokusai Equity ETF
Fund S000067508 · Registered fund · Aug 31, 2026
DBX ETF Trust, not summed
2,108
49
JONES FINANCIAL COMPANIES LLLP
13F CIK 815917 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
1,259,360
50
ROYAL BANK OF CANADA
13F CIK 1000275 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
1,257,518

129 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 1,205 holders

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Key facts CIK 11544 CUSIP 084423102 13F (30d) 181 filings 172 filers Visit website Investor relations