BERKLEY W R CORP

Fire, Marine & Casualty Insurance

WRB Insurance People in Insurance SEC CIK 0000011544 ↗

Computed from SEC EDGAR filings and closing prices — not copied from any wealth ranking. Dataset . How we calculate this.

Market capitalisation
$25.95B
371,227,529 shares Covers all 5 share classes this company has on file.
Insiders on file
12
people who have filed Form 3, 4 or 5 naming this issuer
Value of insider-held stock
$1.88B
from the holdings reported on Forms 3/4/5; this figure has no separate as-of date on file
Insider-held share of market cap
7.24%
insider-held value divided by market capitalisation

What BERKLEY W R CORP reports

Revenue and net income below are for fiscal period FY2025, the period label carried by this company’s own annual XBRL filings to the SEC. Fiscal years do not line up between companies — one company’s FY2026 can cover much the same months as another’s FY2025 — so compare the periods, not just the numbers.

Revenue
$14.71B
FY2025 annual revenue, from this company’s own annual XBRL filings to the SEC
Net income
$1.78B
FY2025 profit for the period, from this company’s own annual XBRL filings to the SEC
Employees
8,804
Yahoo Finance
Where the employee count comes from

Headcount comes from Yahoo Finance, not from a filing. The date beside it is the day we retrieved the figure — it is not the date the company counted its staff, and Yahoo does not publish that date. Unlike the SEC filings behind the other figures on this page, this one carries no open licence, so we publish the number and nothing else from that source.

Insiders at BERKLEY W R CORP

Shares is what each person last reported holding here.

Everyone below has filed at least one insider report against this company.

Value is that share count priced at the same closing price used everywhere else on this site. A row priced from only some of a person’s securities says so — we do not quietly present a partial sum as a complete one.

Rows are grouped by the role each person reports.

The role comes from the relationship boxes a person ticks on their own insider filings — officer, director, ten per cent owner — not from anything we infer. Somebody who is both an officer and a director appears once, in the combined group, so the row count still matches the figure at the top of this page. Where no filing states a role we say so instead of guessing one.

People who file insider reports against BERKLEY W R CORP.
Insider Reported role Shares Value Last action
Officers 4
James G. Shiel EVP 1,005,197 $69.50M F Shares withheld for taxes Aug 3, 2026 position reported
Lucille T Sgaglione EVP 249,784 $17.27M A Grant or award Aug 15, 2025 position reported
Richard Mark Baio CFO 235,590 $16.29M F Shares withheld for taxes Aug 3, 2026 position reported
Philip S Welt EVP 224,863 $15.55M F Shares withheld for taxes Aug 3, 2026 position reported
Officers who also sit on the board 2
William R. Berkley Executive Chairman 18,917,649 $1.31B A Grant or award Jun 3, 2026 position reported
William R. Berkley Jr. CEO 5,902,770 $408.12M F Shares withheld for taxes Aug 3, 2026 position reported
Directors 6
Mary C Farrell Board Member 157,883 $10.92M A Grant or award Jun 3, 2026 position reported
Mark L. Shapiro Board Member 145,454 $10.06M A Grant or award Jun 12, 2024 position reported
Ronald E. Blaylock Board Member 144,853 $10.02M A Grant or award Jun 3, 2026 position reported
Christopher L Augostini Board Member 106,769 $7.38M A Grant or award Jun 3, 2026 position reported
Maria Luisa Ferre Board Member 56,144 $3.88M A Grant or award Jun 3, 2026 position reported
Jonathan Talisman Board Member 30,945 $2.14M A Grant or award Jun 3, 2026 position reported

Recent insider transactions

Of the 57 rows we hold, 0 are open-market purchases and 0 open-market sales.

The rest — awards, shares withheld to pay tax, option exercises, gifts and so on — follow from an employment contract or a transfer arranged off-market, not from a decision to buy or sell, so counting them would turn this into a pay table.

A price of 0.00 is a real reported figure on gifts (G) and share awards (A) — not a gap in our data.

Insider transactions disclosed to the SEC for BERKLEY W R CORP, newest first, each with the filing behind it.
Date Insider Transaction Shares Price Value Filing
Aug 3, 2026 Philip S Welt F Shares withheld for taxes 592 $72.29 $42.8K SEC filing ↗
Aug 3, 2026 Philip S Welt A Grant or award 14,086 $0.00 $0 SEC filing ↗
Aug 3, 2026 Richard Mark Baio F Shares withheld for taxes 650 $72.29 $47.0K SEC filing ↗
Aug 3, 2026 Richard Mark Baio A Grant or award 14,086 $0.00 $0 SEC filing ↗
Aug 3, 2026 William R. Berkley Jr. F Shares withheld for taxes 4,139 $72.29 $299.2K SEC filing ↗
Aug 3, 2026 William R. Berkley Jr. A Grant or award 98,593 $0.00 $0 SEC filing ↗
Aug 3, 2026 James G. Shiel F Shares withheld for taxes 650 $72.29 $47.0K SEC filing ↗
Aug 3, 2026 James G. Shiel A Grant or award 14,086 $0.00 $0 SEC filing ↗
Jun 3, 2026 William R. Berkley A Grant or award 3,090 $0.00 $0 SEC filing ↗
Jun 3, 2026 Maria Luisa Ferre A Grant or award 3,090 $0.00 $0 SEC filing ↗
Jun 3, 2026 William R. Berkley Jr. A Grant or award 3,090 $0.00 $0 SEC filing ↗
Jun 3, 2026 Mary C Farrell A Grant or award 3,090 $0.00 $0 SEC filing ↗
Jun 3, 2026 Christopher L Augostini A Grant or award 3,090 $0.00 $0 SEC filing ↗
Jun 3, 2026 Ronald E. Blaylock A Grant or award 3,090 $0.00 $0 SEC filing ↗
Jun 3, 2026 Jonathan Talisman A Grant or award 3,090 $0.00 $0 SEC filing ↗
Dec 18, 2025 James G. Shiel G Bona fide gift 1,250 $0.00 $0 SEC filing ↗
Aug 15, 2025 William R. Berkley Jr. F Shares withheld for taxes 4,696 $71.24 $334.5K SEC filing ↗
Aug 15, 2025 William R. Berkley Jr. A Grant or award 111,869 $0.00 $0 SEC filing ↗
Aug 15, 2025 William R. Berkley A Grant or award 111,869 $0.00 $0 SEC filing ↗
Aug 15, 2025 William R. Berkley F Shares withheld for taxes 4,277 $71.24 $304.7K SEC filing ↗
Aug 15, 2025 Philip S Welt A Grant or award 16,126 $0.00 $0 SEC filing ↗
Aug 15, 2025 Philip S Welt F Shares withheld for taxes 678 $71.24 $48.3K SEC filing ↗
Aug 15, 2025 Lucille T Sgaglione A Grant or award 16,126 $0.00 $0 SEC filing ↗
Aug 15, 2025 Lucille T Sgaglione F Shares withheld for taxes 717 $71.24 $51.1K SEC filing ↗
Aug 15, 2025 Richard Mark Baio F Shares withheld for taxes 744 $71.24 $53.0K SEC filing ↗

From SEC Form 4 filings. Every row links to the filing it came from. How we calculate this.

What a Form 4 is

The report an officer, director or large shareholder must file after trading their own company’s stock.

Corporate ownership links — 2 filers hold a position

Who owns BERKLEY W R CORP

Each row is one filer naming this company.

Funds, trusts and other companies file the same ownership forms that executives do. Everything below is taken from those filings, with the position exactly as the filing states it.

Do not add these figures together. 2 of the positions below were reported on filings shared by several filers at once.

Why the same shares appear twice

On a joint filing every named filer is listed against the whole position, so the same block of stock appears under each name. Those rows are marked joint.

Filers holding a position in BERKLEY W R CORP

Funds, trusts and companies that disclose an ownership position in BERKLEY W R CORP.
Owner Reported role Shares Filed
MITSUI SUMITOMO INSURANCE CO LTD TenPercentOwner 58,780,450 joint
MS&AD Insurance Group Holdings, Inc. TenPercentOwner 58,780,450 joint

See the full ownership map — every entity that files as an owner of a US public company.

Subsidiaries — 241 legal entities

Subsidiaries of BERKLEY W R CORP

241 legal entities named in the subsidiary exhibit filed with this company’s most recent 10-K. . Filing on SEC.gov.

This is not the full list. SEC rules only require a company to name its significant subsidiaries.

What that leaves out

Smaller entities are left out of the exhibit entirely. A short list here means a short exhibit — it does not mean the company owns nothing else. Nothing on this page is inferred: every name below is copied from the filing.

Subsidiaries BERKLEY W R CORP names in its most recent annual report, with the place each one is organised.
Subsidiary Organised in
Acadia Insurance Company Iowa
Acadia Insurance Group, LLC Delaware
Admiral Indemnity Company Delaware
Admiral Insurance Company Delaware
Admiral Insurance Group, LLC Delaware
American Mining Insurance Group, LLC Delaware
Armada Insurance Services, Inc. California
BerkDel Investors Limited Bermuda
Berkley Accident and Health, LLC Delaware
Berkley Administrators of Connecticut, Inc. Delaware
Berkley Alliance Managers, LLC Delaware
Berkley Alternative Markets Insurance Services, LLC Delaware
Berkley Argentina de Reaseguros S.A. Argentina
Berkley Asset Protection Underwriters, LLC Delaware
Berkley Assurance Company Iowa
Berkley Aviation, LLC Delaware
Berkley Capital Investors, L.P. Delaware
Berkley Capital, LLC Delaware
Berkley Casualty Company Iowa
Berkley Claims Solutions LLC Delaware
Berkley Connect Insurance Solutions, LLC Delaware
Berkley Custom Insurance Managers, LLC Delaware
Berkley Dean & Company, Inc. Delaware
Berkley European Brokers AS Norway
Berkley European Underwriters AS Norway
Berkley Facultative Reinsurance Services, LLC Delaware
Berkley FinSecure, LLC Delaware
Berkley Global Underwriters, LLC Delaware
Berkley Healthcare Professional Insurance Services, LLC Delaware
Berkley Insurance Company Delaware
Berkley Insurance Company – Escritorio De Representacao do Brasil Ltda. Brazil
Berkley Insurance Services, LLC Delaware
Berkley International Aseguradora de Riesgos del Trabajo S. A. Argentina
Berkley International Brasil Participacoes Ltda Brazil
Berkley International Compañía de Garantias México S.A. de C.V. Mexico
Berkley International Compañia de Servicios Mexico, S. A de C. V. Mexico
Berkley International Compañia de Servicios Uruguay, S.A. Uruguay
Berkley International do Brasil Seguros S. A. Brazil
Berkley International Holdings, LLC Delaware
Berkley International Investments Spain, S.L. Spain
Berkley International Latinoamerica S. A. Argentina
Berkley International Puerto Rico, LLC Puerto Rico
Berkley International Seguros Colombia S.A. Colombia
Berkley International Seguros Mexico S.A. de C.V. Mexico
Berkley International Seguros, S. A. Uruguay
Berkley International Seguros, S. A. (99.59% ownership) Argentina
Berkley International Services, LLC Puerto Rico
Berkley International, LLC New York
Berkley Latin America and Caribbean Managers, LLC Delaware
Berkley Life and Health Insurance Company Iowa
Berkley Life Sciences, LLC Delaware
Berkley London Holdings, Inc. Delaware
Berkley LS Insurance Solutions, LLC Delaware
Berkley Luxury Insurance Company Iowa
Berkley Managers Insurance Services, LLC Delaware
Berkley Mid-Atlantic Group, LLC Delaware
Berkley National Insurance Company Iowa
Berkley Net Underwriters, LLC Delaware
Berkley North Pacific Group, LLC Delaware
Berkley Offshore Underwriting Managers UK, Limited United Kingdom
Berkley Offshore Underwriting Managers, LLC Delaware
Berkley Oil & Gas Specialty Services, LLC Delaware
Berkley Prestige Insurance Company Iowa
Berkley Product Recall Insurance Agency, LLC Delaware
Berkley Professional Liability, LLC Delaware
Berkley Program Specialists, LLC Delaware
Berkley Public Entity Managers, LLC Delaware
Berkley Re America, LLC Delaware
Berkley Re Direct, LLC Delaware
Berkley Re UK Limited United Kingdom
Berkley Regional Insurance Company Iowa
Berkley Regional Insurance Services, LLC Delaware
Berkley Regional Specialty, LLC Delaware
Berkley Risk Administrators Company, LLC Minnesota
Berkley Risk Administrators of Texas, Inc. Texas
Berkley Risk Services of Vermont, Inc. Delaware
Berkley Risk Solutions, LLC Delaware
Berkley Select, LLC Delaware
Berkley Southeast Insurance Group, LLC Delaware
Berkley Specialty Insurance Company Delaware
Berkley Specialty Insurance Services, LLC Delaware
Berkley Specialty Underwriting Managers, LLC Delaware
Berkley Surety Group, LLC Delaware
Berkley Technology Services LLC Delaware
Berkley Technology Underwriters, LLC Delaware
Berkley Ventures, LLC Delaware
BI China, Limited Hong Kong
BIA Japan Services GK Japan
BIL Advisors, LLC Delaware
Birchwood Real Estate Capital Limited England
Birchwood Real Estate Capital UK Limited England
BREC 1 UK Limited United Kingdom
BREC Fund 1 CIP GP Limited Jersey
BREC Fund 1 CIP LP Jersey
BREC Fund 1 GP Limited Jersey
BREC Fund 1 Jersey Limited Jersey
BREC Fund 1 LP Jersey
BXM Insurance Services, Inc. Delaware
Capitol Crossing Advisors, LLC Delaware
Capitol Crossing I LLC 1 Delaware
Capitol Crossing II LLC 1 Delaware
Capitol Crossing III LLC 1 Delaware
Capitol Crossing IV LLC 1 Delaware
Capitol Crossing V LLC 1 Delaware
Carolina Casualty Insurance Company Iowa
Carolina Casualty Insurance Group, LLC Delaware
CC Equity Holdings, LLC Delaware
CC Investors, LLC Delaware
CC SPE I LLC 2 Delaware
CC SPE II LLC 2 Delaware
CC SPE III LLC 2 Delaware
CC SPE IV LLC 2 Delaware
CC SPE Member LLC 3 Delaware
CC SPE V LLC 2 Delaware
Center Place Holdings LLC 4 Delaware
CGH Claims Service, Inc. Pennsylvania
CGH Insurance Group, LLC Alabama
Chilewich Retail LLC Delaware
Chilewich SL Spain
Chilewich Sultan LLC New York
Citrus Insurance Services LLC Delaware
Clermont Insurance Company Iowa
Clermont Specialty Managers, Ltd. New Jersey
Continental Western Group, LLC Delaware
Continental Western Insurance Company Iowa
Corporate Imaging Concepts, LLC (82.06% ownership) Delaware
Cotasy Corporation S. A. Uruguay
Crypton Belgium Delaware
Crypton Investment Holdings LLC (89.5% ownership) Delaware
Crypton LLC Michigan
Crypton Mills, LLC Delaware
Crypton Real Estate, LLC Delaware
East Isles Reinsurance, Ltd. Bermuda
eCompanyStore, LLC Delaware
Facultative Resources, Inc. Connecticut
Fayston Farms Shipping Ltd. Bermuda
Firemen's Insurance Company of Washington, D.C. Iowa
Franchise Credit, LLC Delaware
Gemini Insurance Company Delaware
Gemini Transportation Underwriters, LLC Delaware
Global Agency Holdings, LLC Delaware
Great Divide Insurance Company North Dakota
Greenwich AeroGroup, Inc. Delaware
GRG Investment Holdings, Ltd. Cayman Islands
Guangzhou Meridian Chemical Limited China
Insurance Auction Solutions, LLC Delaware
Insurance Networks Alliance, LLC Delaware
Interlaken Capital Aviation Holdings, Inc. Delaware
Interlaken Capital Aviation Services, Inc. Delaware
Intrepid Casualty Company Iowa
Intrepid Direct Insurance Agency, LLC Kansas
Intrepid Insurance Company Iowa
Intrepid Specialty Insurance Company Iowa
Jersey International Brokerage Corporation New Jersey
Kauai Shipping Ltd. Bermuda
Kekona Shipping Ltd. Bermuda
Key Care, LLC North Carolina
Key Risk Insurance Company Iowa
Key Risk Management Services, LLC Delaware
Key Risk Underwriting Managers, LLC Delaware
Kilauea Holdings Ltd. Bermuda
Kimmei Shipping Ltd. Bermuda
Kohala Shipping Ltd. Bermuda
Lady Jane Shipping Ltd. Bermuda
Lavalier Insurance Services, LLC Delaware
LDS CPH II LLC (80% ownership) Delaware
LDS CPH LLC (80% ownership) Delaware
Lex NY Equities LLC Delaware
Mad River Shipping Ltd. Bermuda
MADA Reciprocal Services, Inc. Minnesota
Magaverse Limited Hong Kong
Masterclass Limited Hong Kong
MedCall Healthcare Advisors, LLC Delaware
Middle Patent Capital, LLC Delaware
Midwest Employers Casualty Company Iowa
Midwest Employers Casualty Group, LLC Delaware
Midwest Employers Services, LLC Delaware
Monitor Liability Managers, LLC Delaware
MPC Memphis HI LLC Delaware
Nano-Tex Asia Limited Hong Kong
Nano-Tex LLC Michigan
Nautilus Excess Insurance Agency, LLC Delaware
Nautilus Insurance Company Arizona
Nautilus Insurance Group, LLC Delaware
Number 9 Shipping Ltd. Bermuda
Oak Harbor Reinsurance Company North Carolina
Overby-Seawell Company Georgia
PGIS, LLC Texas
Platinum Program Managers & Insurance Services, Inc. California
Preferred Employers Group, LLC Delaware
Preferred Employers Insurance Company California
Professional Aircraft Accessories, Inc. Delaware
Professional Aviation Associates, Inc. Georgia
Queen's Island Insurance Company, Ltd. Bermuda
Rasmussen Agency, Inc. New Jersey
Regional Excess Underwriters, LLC Delaware
Reinserco, Inc. New Jersey
Riverport Insurance Company Iowa
Riverport Insurance Services, LLC Delaware
Ross Diversified Insurance Services, Inc. California
Select Marketing Insurance Services, LLC California
Signet Star Holdings, Inc. Delaware
SilverCap Asset Management, LLC Delaware
SilverCap-Greenwich, LLC (98.8% ownership) Delaware
Southeastern Underwriters, Inc. Virginia
StarNet Insurance Company Iowa
Starnet Insurance Services, LLC Delaware
Steamboat Asset Management, LLC Delaware
Steamboat Development Advisors, LLC Delaware
Steamboat Insurance Agency, Inc. Canada
Steamboat IS, Inc. Delaware
Steamboat Opportunity Partners, LLC Delaware
Summit Aviation, Inc. Delaware
Target Markets, LLC Delaware
Target Programs, LLC Delaware
Tri-State Insurance Company of Minnesota Iowa
Union Insurance Company Iowa
Union Standard Insurance Group, LLC Delaware
Union Standard Management Company, Inc. Texas
Vela Insurance Services, LLC Delaware
Verus Underwriting Managers, LLC Delaware
W. R. Berkley Europe AG Liechtenstein
W. R. Berkley European Holdings AG Switzerland
W. R. Berkley European Services GmbH Switzerland
W. R. Berkley London Holdings, Limited United Kingdom
W. R. Berkley London Staff, Limited United Kingdom
W. R. Berkley Mexico, S. A. de C. V. Mexico
W. R. Berkley Spain, S. L. U. Spain
W. R. Berkley Syndicate Holdings Limited United Kingdom
W. R. Berkley Syndicate Limited United Kingdom
W. R. Berkley Syndicate Management Limited United Kingdom
W. R. Berkley UK Limited United Kingdom
Western Aircraft, Inc. Nevada
Western Pinnacle Insurance Services, Inc. California
WRBC Aviation Leasing, LLC Delaware
WRBC Corporate Member Limited United Kingdom
WRBC Development UK Limited United Kingdom
WRBC REF Holdings Limited Bermuda
WRBC Services, Limited United Kingdom
WRBC Support Services, LLC Delaware
WRBC Transportation, Inc. Delaware
What counts as a subsidiary

A subsidiary is a separate legal entity this company controls; it is not the same thing as a brand, a division or an office. These entities do not file with the SEC in their own right, so there is no separate page to open for them.

Think a number here is wrong? Open the linked filing and compare — how to report it.

Sources and technical notes

Every figure on this page comes from filings to the U.S. SEC via EDGAR. Nothing here is estimated, and nothing is taken from press coverage or company websites.

Share count: cover page of the latest filing (dei:EntityCommonStockSharesOutstanding), taken from BERKLEY W R CORP’s own filings and multiplied by our closing price. Full method.

What that share count means

the share count the company itself prints on the cover of its most recent filing, as of the date it signed that filing.

We do not take a market cap from a data vendor, and we do not estimate one: the figure is a share count from BERKLEY W R CORP’s own SEC filings multiplied by the closing price we hold for the same stock.