WRB.PRH / W. R. Berkley Corporation - Corporate Bond/Note - SEC Filings, Annual Report, Proxy Statement

W. R. Berkley Corporation - Corporate Bond/Note
US ˙ NYSE ˙ US0844238701

Basic Stats
LEI SQOAGCLKBDWNVYV1OV80
CIK 11544
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to W. R. Berkley Corporation - Corporate Bond/Note
SEC Filings (Chronological Order)
This page provides a complete, chronological list of SEC Filings, excluding ownership filings which we provide elsewhere.
August 4, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark one) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2025 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934. For the Transition Period from to . Commission File Number 1-15202 W. R. BERK

July 21, 2025 EX-99.1

W. R. Berkley Corporation Reports Second Quarter 2025 Results Net Premiums Written Increased to a Record $3.4 Billion; Return on Equity of 19.1% and Operating Return on Equity of 20.0%

NEWS RELEASE W. R. Berkley Corporation 475 Steamboat Road Greenwich, Connecticut 06830 (203) 629-3000 FOR IMMEDIATE RELEASE CONTACT: Karen A. Horvath Vice President - External Financial Communications (203) 629-3000 W. R. Berkley Corporation Reports Second Quarter 2025 Results Net Premiums Written Increased to a Record $3.4 Billion; Return on Equity of 19.1% and Operating Return on Equity of 20.0%

July 21, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 21, 2025 Commission File Num

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 21, 2025 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of incor

June 25, 2025 11-K

United States Securities and Exchange Commission Washington, D.C. 20549 Form 11-K Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934

United States Securities and Exchange Commission Washington, D.C. 20549 Form 11-K Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 (Mark One) þ Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2024 o Transition Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the transition

June 13, 2025 EX-3.1

Exhibit 3.1

CERTIFICATE OF AMENDMENT OF RESTATED CERTIFICATE OF INCORPORATION OF W. R. BERKLEY CORPORATION The undersigned, being the Chief Executive Officer of W. R. BERKLEY CORPORATION, a corporation existing under the laws of the State of Delaware, hereby certifies that: 1. The first paragraph of Article Fourth of the Restated Certificate of Incorporation of said corporation be and it hereby is amended to

June 13, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 11, 2025 Commission File Num

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 11, 2025 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of incor

May 2, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark one) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2025 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934. For the Transition Period from to . Commission File Number 1-15202 W. R. BER

May 2, 2025 EX-10.1

2025 Performance Unit Award Agreement Under the W. R. Berkley Corporation 2019 Long-Term Incentive Plan

2025 Performance Unit Award Agreement Under the W. R. Berkley Corporation 2019 Long-Term Incentive Plan This 2025 Performance Unit Award Agreement (this “Agreement”), effective January 1, 2025, represents a grant of Performance Units by W. R. Berkley Corporation, to the Participant named below, pursuant to the provisions of the W. R. Berkley Corporation 2019 Long-Term Incentive Plan (as may be ame

April 30, 2025 DEFA14A

SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.  )

DEFA14A SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.

April 25, 2025 DEF 14A

SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.  )

Table of Contents SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.

April 25, 2025 DEFA14A

SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.  )

DEFA14A SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.

April 21, 2025 EX-99.1

W. R. Berkley Corporation Reports First Quarter Results Net Premiums Written Increased to a Record $3.1 Billion; Return on Equity of 19.9% and Operating Return on Equity of 19.3%

NEWS RELEASE W. R. Berkley Corporation 475 Steamboat Road Greenwich, Connecticut 06830 (203) 629-3000 FOR IMMEDIATE RELEASE CONTACT: Karen A. Horvath Vice President - External Financial Communications (203) 629-3000 W. R. Berkley Corporation Reports First Quarter Results Net Premiums Written Increased to a Record $3.1 Billion; Return on Equity of 19.9% and Operating Return on Equity of 19.3% Green

April 21, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 21, 2025 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of inco

April 15, 2025 PRE 14A

SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.  )

Table of Contents SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.

March 28, 2025 EX-99.1

W. R. Berkley Corporation Confirms Mitsui Sumitomo Insurance Co. Intends to Purchase 15% of the Company’s Shares in Open Market or Private Transactions from Third Parties MSI also entered into a voting arrangement with a company that is owned by the

Exhibit 99.1 W. R. Berkley Corporation Confirms Mitsui Sumitomo Insurance Co. Intends to Purchase 15% of the Company’s Shares in Open Market or Private Transactions from Third Parties MSI also entered into a voting arrangement with a company that is owned by the Berkley family and trusts for their benefit, which holds approximately 16% of the Company’s outstanding Common Stock GREENWICH, Conn., Ma

March 28, 2025 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 28, 2025 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of inco

March 28, 2025 EX-10.3

Confidentiality Agreement, dated as of March 28, 2025, by and between W. R. Berkley Corporation and Mitsui Sumitomo Insurance Company, Limited.

Exhibit 10.3 Execution Version CONFIDENTIALITY AGREEMENT This CONFIDENTIALITY AGREEMENT (this “Agreement”), dated as of March 28, 2025 (the “Effective Date”), is entered into by and between W. R. Berkley Corporation, a Delaware corporation (“Berkley”), and Mitsui Sumitomo Insurance Company, Limited, a Japanese stock company (“MSI”, and each of Berkley and MSI, a “party”). RECITALS WHEREAS, simulta

March 28, 2025 EX-10.1

Framework Agreement, dated as of March 28, 2025, by and between WR Berkley & Others LLC and Mitsui Sumitomo Insurance Company, Limited (including the form of Amended and Restated Limited Liability Company Agreement attached as Exhibit A).

Exhibit 10.1 Execution Version FRAMEWORK AGREEMENT This FRAMEWORK AGREEMENT (this “Agreement”), dated as of March 28, 2025 (the “Effective Date”), is entered into by and between WR Berkley & Others LLC, a Delaware limited liability company (“Family Holdings”), and Mitsui Sumitomo Insurance Company, Limited, a Japanese stock company (“MSI”) (each a “party”, and together the “parties”). RECITALS WHE

March 28, 2025 EX-10.2

Letter Agreement, dated as of March 28, 2025, by and between W. R. Berkley Corporation and Mitsui Sumitomo Insurance Company, Limited.

Exhibit 10.2 Execution Version Mitsui Sumitomo Insurance Company, Limited 9, Kanda-Surugadai 3-Chome, Chiyoda-ku, Tokyo, 101-8011, Japan Attention: International Business Department E-mail: [***]; [***]; Tel: [***] March 28, 2025 W. R. Berkley Corporation 475 Steamboat Road Greenwich, CT 06830 Attention: General Counsel E-mail: [***]   [***] Tel: [***] Ladies and Gentlemen: This letter agreement i

February 24, 2025 EX-19.1

INSIDER TRADING POLICY

Global Restrictions on W. R. Berkley Corporation Insider Trading Policy February 2025 Introduction The securities laws of the United States and the various states impose important restrictions on officers, directors and employees (“Covered Persons”) of W. R. Berkley Corporation and its subsidiaries (together, the “Company”) with respect to sales, purchases and other transactions involving securiti

February 24, 2025 10-K

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 ☐ TRANSITION REPORT PURSUANT TO SECTION

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number 1-15202 W. R. BERKLEY CORPORATION (Ex

February 24, 2025 EX-21

LIST OF COMPANIES AND SUBSIDIARIES

Exhibit 21 Subsidiaries of the Registrant (as of December 31, 2024). Ownership is 100% unless otherwise indicated. Entity Name Domicile 52 Lime Street Management Limited United Kingdom 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 Del

January 30, 2025 EX-99.1

EXHIBIT 99.1

EXHIBIT 99.1 The identity and the Item 3 classification of the relevant subsidiary is: Berkley Insurance Company, which is an insurance company in accordance with Rule 13d-1(b)(1)(ii)(C).

January 30, 2025 EX-99.2

AGREEMENT OF REPORTING PERSONS

EXHIBIT 99.2 AGREEMENT OF REPORTING PERSONS The undersigned acknowledge and agree that the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13G shall be filed on behalf of each of the undersigned without the necessity of filing additional joint filing agreements. The undersigned acknowledge that each

January 27, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 27, 2025 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of in

January 27, 2025 EX-99.1

W. R. Berkley Corporation Reports Fourth Quarter and Full Year 2024 Results Fourth Quarter Return on Equity of 30.9% and Operating Return on Equity of 24.3%; Quarterly Net Income and Record Operating Income Increased 45.0% and 15.5% to $576 Million a

NEWS RELEASE W. R. Berkley Corporation 475 Steamboat Road Greenwich, Connecticut 06830 (203) 629-3000 FOR IMMEDIATE RELEASE CONTACT: Karen A. Horvath Vice President - External Financial Communications (203) 629-3000 W. R. Berkley Corporation Reports Fourth Quarter and Full Year 2024 Results Fourth Quarter Return on Equity of 30.9% and Operating Return on Equity of 24.3%; Quarterly Net Income and R

November 6, 2024 SC 13G

MSSA / Metal Sky Star Acquisition Corporation / BERKLEY W R CORP - SCHEDULE 13G Passive Investment

SC 13G 1 w79881053a.htm SCHEDULE 13G SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* METAL SKY STAR ACQUISITION CORPORATION (Name of Issuer) Ordinary Shares, $0.001 par value (Title of Class of Securities) G6053N105 (CUSIP Number) September 30, 2024 (Date of Event Which Requires Filing of This Statement) Check the a

November 6, 2024 EX-99.2

AGREEMENT OF REPORTING PERSONS

EX-99.2 3 w80048898c.htm AGREEMENT OF REPORTING PERSONS EXHIBIT 99.2 AGREEMENT OF REPORTING PERSONS The undersigned acknowledge and agree that the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13G shall be filed on behalf of each of the undersigned without the necessity of filing additional joint f

November 6, 2024 SC 13G

OAKU / Oak Woods Acquisition Corporation / BERKLEY W R CORP - SCHEDULE 13G Passive Investment

SC 13G 1 w80970881a.htm SCHEDULE 13G SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Oak Woods Acquisition Corporation (Name of Issuer) Class A Ordinary Shares, par value $0.0001 per share (Title of Class of Securities) 67190B104 (CUSIP Number) September 30, 2024 (Date of Event Which Requires Filing of This Statemen

November 6, 2024 EX-99.1

EXHIBIT 99.1

EX-99.1 2 w80970881b.htm THE IDENTITY AND THE ITEM 3 CLASSIFICATION OF THE RELEVANT SUBSIDIARY EXHIBIT 99.1 The identity and the Item 3 classification of the relevant subsidiary is: Berkley Insurance Company, which is an insurance company in accordance with Rule 13d-1(b)(1)(ii)(C).

November 6, 2024 EX-99.1

EXHIBIT 99.1

EX-99.1 2 w79881053b.htm THE IDENTITY AND THE ITEM 3 CLASSIFICATION OF THE RELEVANT SUBSIDIARY EXHIBIT 99.1 The identity and the Item 3 classification of the relevant subsidiary is: Berkley Insurance Company, which is an insurance company in accordance with Rule 13d-1(b)(1)(ii)(C).

November 6, 2024 EX-99.2

AGREEMENT OF REPORTING PERSONS

EX-99.2 3 w79881046c.htm AGREEMENT OF REPORTING PERSONS EXHIBIT 99.2 AGREEMENT OF REPORTING PERSONS The undersigned acknowledge and agree that the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13G shall be filed on behalf of each of the undersigned without the necessity of filing additional joint f

November 6, 2024 SC 13G

PHYT / Pyrophyte Acquisition Corp. / BERKLEY W R CORP - SCHEDULE 13G Passive Investment

SC 13G 1 w79881046a.htm SCHEDULE 13G SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* PYROPHYTE ACQUISITION CORP. (Name of Issuer) Class A Ordinary Shares, par value $0.0001 per share (Title of Class of Securities) G7308P101 (CUSIP Number) September 30, 2024 (Date of Event Which Requires Filing of This Statement) Che

November 6, 2024 EX-99.2

AGREEMENT OF REPORTING PERSONS

EX-99.2 3 w79881053c.htm AGREEMENT OF REPORTING PERSONS EXHIBIT 99.2 AGREEMENT OF REPORTING PERSONS The undersigned acknowledge and agree that the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13G shall be filed on behalf of each of the undersigned without the necessity of filing additional joint f

November 6, 2024 SC 13G

BAYA / Bayview Acquisition Corp / BERKLEY W R CORP - SCHEDULE 13G Passive Investment

SC 13G 1 w80048898a.htm SCHEDULE 13G SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Bayview Acquisition Corp (Name of Issuer) Ordinary Shares, par value $0.0001 per share (Title of Class of Securities) 07323B100 (CUSIP Number) September 30, 2024 (Date of Event Which Requires Filing of This Statement) Check the appr

November 6, 2024 EX-99.2

AGREEMENT OF REPORTING PERSONS

EX-99.2 3 w80970881c.htm AGREEMENT OF REPORTING PERSONS EXHIBIT 99.2 AGREEMENT OF REPORTING PERSONS The undersigned acknowledge and agree that the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13G shall be filed on behalf of each of the undersigned without the necessity of filing additional joint f

November 6, 2024 SC 13G

MCAA / Mountain & Co. I Acquisition Corp. / BERKLEY W R CORP - SCHEDULE 13G Passive Investment

SC 13G 1 w79881063a.htm SCHEDULE 13G SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* MOUNTAIN & CO. I ACQUISITION CORP. (Name of Issuer) Class A ordinary shares, par value $0.0001 per share (Title of Class of Securities) G6301J104 (CUSIP Number) September 30, 2024 (Date of Event Which Requires Filing of This Stateme

November 6, 2024 EX-99.1

EXHIBIT 99.1

EX-99.1 2 w80048898b.htm THE IDENTITY AND THE ITEM 3 CLASSIFICATION OF THE RELEVANT SUBSIDIARY EXHIBIT 99.1 The identity and the Item 3 classification of the relevant subsidiary is: Berkley Insurance Company, which is an insurance company in accordance with Rule 13d-1(b)(1)(ii)(C).

November 6, 2024 EX-99.1

EXHIBIT 99.1

EX-99.1 2 w79881046b.htm THE IDENTITY AND THE ITEM 3 CLASSIFICATION OF THE RELEVANT SUBSIDIARY EXHIBIT 99.1 The identity and the Item 3 classification of the relevant subsidiary is: Berkley Insurance Company, which is an insurance company in accordance with Rule 13d-1(b)(1)(ii)(C).

November 6, 2024 EX-99.1

EXHIBIT 99.1

EX-99.1 2 w79881063b.htm THE IDENTITY AND THE ITEM 3 CLASSIFICATION OF THE RELEVANT SUBSIDIARY EXHIBIT 99.1 The identity and the Item 3 classification of the relevant subsidiary is: Berkley Insurance Company, which is an insurance company in accordance with Rule 13d-1(b)(1)(ii)(C).

November 6, 2024 EX-99.2

AGREEMENT OF REPORTING PERSONS

EX-99.2 3 w79881063c.htm AGREEMENT OF REPORTING PERSONS EXHIBIT 99.2 AGREEMENT OF REPORTING PERSONS The undersigned acknowledge and agree that the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13G shall be filed on behalf of each of the undersigned without the necessity of filing additional joint f

November 4, 2024 EX-10.1

RESTRICTED STOCK UNIT AGREEMENT

L18.1 (PERFORMANCE BASED) RESTRICTED STOCK UNIT AGREEMENT Under the W. R. Berkley Corporation 2018 Stock Incentive Plan THIS RESTRICTED STOCK UNIT AGREEMENT (the “Agreement”), dated as of , by and between W. R. BERKLEY CORPORATION, a Delaware corporation (the “Company”), and grantee as set forth on Exhibit A hereto (the “Grantee”). Important jurisdiction-specific modifications to this Agreement ar

November 4, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark one) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2024 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934. For the Transition Period from to . Commission File Number 1-15202 W. R.

October 21, 2024 EX-99.1

W. R. Berkley Corporation Reports Third Quarter Results Return on Equity of 19.6% and Operating Return on Equity of 20.0%; Record Third Quarter Net Income Increased to $366 Million

NEWS RELEASE W. R. Berkley Corporation 475 Steamboat Road Greenwich, Connecticut 06830 (203) 629-3000 FOR IMMEDIATE RELEASE CONTACT: Karen A. Horvath Vice President - External Financial Communications (203) 629-3000 W. R. Berkley Corporation Reports Third Quarter Results Return on Equity of 19.6% and Operating Return on Equity of 20.0%; Record Third Quarter Net Income Increased to $366 Million Gre

October 21, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 21, 2024 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of in

August 2, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark one) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2024 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934. For the Transition Period from to . Commission File Number 1-15202 W. R. BERK

July 22, 2024 EX-99.1

W. R. Berkley Corporation Reports Second Quarter Results Return on Equity of 20.0% and Operating Return on Equity of 22.4%; Record Quarterly Net Investment Income of $372 Million

NEWS RELEASE W. R. Berkley Corporation 475 Steamboat Road Greenwich, Connecticut 06830 (203) 629-3000 FOR IMMEDIATE RELEASE CONTACT: Karen A. Horvath Vice President - External Financial Communications (203) 629-3000 W. R. Berkley Corporation Reports Second Quarter Results Return on Equity of 20.0% and Operating Return on Equity of 22.4%; Record Quarterly Net Investment Income of $372 Million Green

July 22, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 22, 2024 Commission File Num

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 22, 2024 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of incor

June 25, 2024 11-K

United States Securities and Exchange Commission Washington, D.C. 20549 Form 11-K Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934

United States Securities and Exchange Commission Washington, D.C. 20549 Form 11-K Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 (Mark One) þ Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2023 o Transition Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the transition

June 12, 2024 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 12, 2024 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of incor

May 3, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark one) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2024 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934. For the Transition Period from to . Commission File Number 1-15202 W. R. BER

May 3, 2024 EX-10.1

2024 Performance Unit Award Agreement Under the W. R. Berkley Corporation 2019 Long-Term Incentive Plan

2024 Performance Unit Award Agreement Under the W. R. Berkley Corporation 2019 Long-Term Incentive Plan This 2024 Performance Unit Award Agreement (this “Agreement”), effective January 1, 2024, represents a grant of Performance Units by W. R. Berkley Corporation, to the Participant named below, pursuant to the provisions of the W. R. Berkley Corporation 2019 Long-Term Incentive Plan (as may be ame

April 26, 2024 DEF 14A

SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.  )

Table of Contents SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.

April 26, 2024 DEFA14A

SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.  )

SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.

April 23, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 23, 2024 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of inco

April 23, 2024 8-K

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 23, 2024 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of inco

April 23, 2024 EX-99.1

W. R. Berkley Corporation Reports First Quarter Results Net Income Increased 50.4% to $442 Million and Operating Income Increased 53.4% to a Record $423 Million; Return on Equity of 23.7% and Operating Return on Equity of 22.7%

NEWS RELEASE W. R. Berkley Corporation 475 Steamboat Road Greenwich, Connecticut 06830 (203) 629-3000 FOR IMMEDIATE RELEASE CONTACT: Karen A. Horvath Vice President - External Financial Communications (203) 629-3000 W. R. Berkley Corporation Reports First Quarter Results Net Income Increased 50.4% to $442 Million and Operating Income Increased 53.4% to a Record $423 Million; Return on Equity of 23

February 23, 2024 EX-10.12

FORM OF 2023 PERFORMANCE-BASED RESTRICTED STOCK UNIT AGREEMENT UNDER THE W. R. BERKLEY CORPORATION 2018 STOCK INCENTIVE PLAN

L18 (PERFORMANCE BASED) RESTRICTED STOCK UNIT AGREEMENT Under the W. R. Berkley Corporation 2018 Stock Incentive Plan THIS RESTRICTED STOCK UNIT AGREEMENT (the “Agreement”), dated as of , by and between W. R. BERKLEY CORPORATION, a Delaware corporation (the “Company”), and grantee as set forth on Exhibit A hereto (the “Grantee”). Important jurisdiction-specific modifications to this Agreement are

February 23, 2024 10-K

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTION

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number 1-15202 W. R. BERKLEY CORPORATION (Ex

February 23, 2024 EX-21

LIST OF COMPANIES AND SUBSIDIARIES

Exhibit 21 Subsidiaries of the Registrant (as of December 31, 2023). Ownership is 100% unless otherwise indicated. Entity Name Domicile 120dB Films Capital, LLC Delaware 120dB Films Lending, LLC Delaware 52 Lime Street Management Limited United Kingdom Abercrombie Textiles, LLC Delaware Acadia Insurance Company Iowa Acadia Insurance Group, LLC Delaware Admiral Indemnity Company Delaware Admiral In

February 23, 2024 EX-97

W. R. BERKLEY CORPORATION CLAWBACK POLICY

W. R. BERKLEY CORPORATION CLAWBACK POLICY The Compensation Committee (the “Committee”) of the Board of Directors (the “Board”) of W. R. Berkley Corporation (the “Company”) believes that it is appropriate for the Company to adopt this Clawback Policy (the “Policy”) to be applied to the Executive Officers of the Company and adopts this Policy to be effective as of the Effective Date. 1.Definitions F

February 13, 2024 SC 13G/A

WRB / W. R. Berkley Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv02246-wrberkleycorp.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 10)* Name of issuer: W R Berkley Corp Title of Class of Securities: Common Stock CUSIP Number: 084423102 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designate th

January 24, 2024 EX-99.1

W. R. Berkley Corporation Reports Fourth Quarter and Full Year 2023 Results Fourth Quarter Return on Equity of 23.6% and Operating Return on Equity of 23.2%; Record Quarterly and Annual Pre-Tax Underwriting Income and Net Investment Income

NEWS RELEASE W. R. Berkley Corporation 475 Steamboat Road Greenwich, Connecticut 06830 (203) 629-3000 FOR IMMEDIATE RELEASE CONTACT: Karen A. Horvath Vice President - External Financial Communications (203) 629-3000 W. R. Berkley Corporation Reports Fourth Quarter and Full Year 2023 Results Fourth Quarter Return on Equity of 23.6% and Operating Return on Equity of 23.2%; Record Quarterly and Annua

January 24, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 24, 2024 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of in

November 3, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark one) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2023 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934. For the Transition Period from to . Commission File Number 1-15202 W. R.

November 3, 2023 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Table FORM S-3 (Form Type) W. R. Berkley Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title (1) Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registratio

November 3, 2023 S-3ASR

Power of Attorney (included on signature pages)

Table of Contents As filed with the Securities and Exchange Commission on November 3, 2023 Registration No.

November 3, 2023 EX-25.2

Statement of Eligibility of The Bank of New York Mellon, as trustee, on Form T-1 for the W. R. Berkley Corporation Subordinated Indenture, dated as of March 26, 2018.

Exhibit 25.2 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE ☐ CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b)(2) THE BANK OF NEW YORK MELLON (Exact name of trustee as specified in its charter) New York 13-5160382 (Ju

November 3, 2023 EX-25.1

Statement of Eligibility of The Bank of New York Mellon, as trustee, on Form T-1 for the W. R. Berkley Corporation Senior Indenture, dated as of May 12, 2020.

Exhibit 25.1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE ☐ CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b)(2) THE BANK OF NEW YORK MELLON (Exact name of trustee as specified in its charter) New York 13-5160382 (Ju

October 23, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 23, 2023 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of in

October 23, 2023 EX-99.1

W. R. Berkley Corporation Reports Third Quarter Results Net Income Increased by 45.7% to $334 Million; Operating Return on Equity of 21.7% and Return on Equity of 19.8%; Record Quarterly Net Investment Income of $271 Million Driven by 59.3% Increase

NEWS RELEASE W. R. Berkley Corporation 475 Steamboat Road Greenwich, Connecticut 06830 (203) 629-3000 FOR IMMEDIATE RELEASE CONTACT: Karen A. Horvath Vice President - External Financial Communications (203) 629-3000 W. R. Berkley Corporation Reports Third Quarter Results Net Income Increased by 45.7% to $334 Million; Operating Return on Equity of 21.7% and Return on Equity of 19.8%; Record Quarter

August 3, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark one) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2023 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934. For the Transition Period from to . Commission File Number 1-15202 W. R. BERK

July 20, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 20, 2023 Commission File Num

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 20, 2023 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of incor

July 20, 2023 EX-99.1

W. R. Berkley Corporation Reports Second Quarter Results Return on Equity of 21.1%; Quarterly Net Income Doubles to $356 Million

NEWS RELEASE W. R. Berkley Corporation 475 Steamboat Road Greenwich, Connecticut 06830 (203) 629-3000 FOR IMMEDIATE RELEASE CONTACT: Karen A. Horvath Vice President - External Financial Communications (203) 629-3000 W. R. Berkley Corporation Reports Second Quarter Results Return on Equity of 21.1%; Quarterly Net Income Doubles to $356 Million Greenwich, CT, July 20, 2023 - W. R. Berkley Corporatio

June 28, 2023 11-K

United States Securities and Exchange Commission Washington, D.C. 20549 Form 11-K Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934

United States Securities and Exchange Commission Washington, D.C. 20549 Form 11-K Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 (Mark One) þ Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2022 o Transition Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the transition

June 16, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 14, 2023 Commission File Num

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 14, 2023 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of incor

May 4, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark one) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2023 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934. For the Transition Period from to . Commission File Number 1-15202 W. R. BER

May 4, 2023 EX-10.1

2023 Performance Unit Award Agreement Under the W. R. Berkley Corporation 2019 Long-Term Incentive Plan

2023 Performance Unit Award Agreement Under the W. R. Berkley Corporation 2019 Long-Term Incentive Plan This 2023 Performance Unit Award Agreement (this “Agreement”), effective January 1, 2023, represents an Award of Performance Units by W. R. Berkley Corporation (the “Company”), to the Participant named below, pursuant to the provisions of the W. R. Berkley Corporation 2019 Long-Term Incentive Pl

April 28, 2023 DEF 14A

SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. )

Table of Contents SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.

April 28, 2023 DEFA14A

SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. )

DEFA14A SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.

April 20, 2023 EX-99.1

W. R. Berkley Corporation Reports First Quarter Results Return on Equity of 17.4%; Quarterly Net Investment Income of $223 Million Driven By Core Portfolio Increase of 80.7%

NEWS RELEASE W. R. Berkley Corporation 475 Steamboat Road Greenwich, Connecticut 06830 (203) 629-3000 FOR IMMEDIATE RELEASE CONTACT: Karen A. Horvath Vice President - External Financial Communications (203) 629-3000 W. R. Berkley Corporation Reports First Quarter Results Return on Equity of 17.4%; Quarterly Net Investment Income of $223 Million Driven By Core Portfolio Increase of 80.7% Greenwich,

April 20, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 20, 2023 Commission File Nu

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 20, 2023 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of inco

March 1, 2023 EX-3.2

As Amended and Restated as of February 24, 2023 AMENDED AND RESTATED W. R. BERKLEY CORPORATION ARTICLE I OFFICES

Exhibit 3.2 As Amended and Restated as of February 24, 2023 AMENDED AND RESTATED BY-LAWS OF W. R. BERKLEY CORPORATION ARTICLE I OFFICES Section 1. The registered office shall be in the City of of the corporation shall be established and maintained at the office of The Corporation Trust Company at 1209 Orange Street, Corporation Trust Center, Wilmington, DE, 19801, in the County of New Castle, in t

March 1, 2023 8-K

FORM 8K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934 Commission File Number 1-15202 Date of Report (Date of Earliest Event Repor

FORM 8K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934 Commission File Number 1-15202 Date of Report (Date of Earliest Event Reported): February 24, 2023 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdict

February 24, 2023 EX-4.1

DESCRIPTION OF REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934

DESCRIPTION OF REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 As of February 15, 2023, W.

February 24, 2023 EX-21

LIST OF COMPANIES AND SUBSIDIARIES

Exhibit 21 Subsidiaries of the Registrant (as of December 31, 2022). Ownership is 100% unless otherwise indicated. Entity Name Domicile 120dB Films Capital, LLC Delaware 120dB Films Lending, LLC Delaware 52 Lime Street Management Limited United Kingdom Abercrombie Textiles, LLC Delaware Acadia Insurance Company Iowa Acadia Insurance Group, LLC Delaware Admiral Indemnity Company Delaware Admiral In

February 24, 2023 10-K

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 ☐ TRANSITION REPORT PURSUANT TO SECTION

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number 1-15202 W. R. BERKLEY CORPORATION (Ex

February 9, 2023 SC 13G/A

WRB / Berkley (W.R.) Corp. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv02213-wrberkleycorp.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 9)* Name of issuer: W R Berkley Corp. Title of Class of Securities: Common Stock CUSIP Number: 084423102 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to designate th

February 7, 2023 EX-99.2

AGREEMENT OF REPORTING PERSONS

EX-99.2 3 w60932992c.htm AGREEMENT OF REPORTING PERSONS EXHIBIT 99.2 AGREEMENT OF REPORTING PERSONS The undersigned acknowledge and agree that the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13G shall be filed on behalf of each of the undersigned without the necessity of filing additional joint f

February 7, 2023 EX-99.1

EXHIBIT 99.1

EX-99.1 2 w60932992b.htm THE IDENTITY AND THE ITEM 3 CLASSIFICATION OF THE RELEVANT SUBSIDIARY EXHIBIT 99.1 The identity and the Item 3 classification of the relevant subsidiary is: Berkley Insurance Company, which is an insurance company in accordance with Rule 13d-1(b)(1)(ii)(C).

February 7, 2023 SC 13G

GBLI / Global Indemnity plc / BERKLEY W R CORP - SCHEDULE 13G Passive Investment

SC 13G 1 w60932992a.htm SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Global Indemnity Group, LLC (Name of Issuer) Class A Common Shares (Title of Class of Securities) 37959R103 (CUSIP Number) December 31, 2022 (Date of Event which Requires Filing of this Statement) Check the appropriate

January 26, 2023 EX-99.1

W. R. Berkley Corporation Reports Fourth Quarter and Full Year Results Fourth Quarter Net Income Grew 29.8% and Return on Equity of 23.0% Record Annual Pre-Tax Underwriting Income of $1.0 Billion and Record Net Income of $1.4 Billion

NEWS RELEASE W. R. Berkley Corporation 475 Steamboat Road Greenwich, Connecticut 06830 (203) 629-3000 FOR IMMEDIATE RELEASE CONTACT: Karen A. Horvath Vice President - External Financial Communications (203) 629-3000 W. R. Berkley Corporation Reports Fourth Quarter and Full Year Results Fourth Quarter Net Income Grew 29.8% and Return on Equity of 23.0% Record Annual Pre-Tax Underwriting Income of $

January 26, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 26, 2023 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of in

December 12, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 9, 2022 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-15202 22-1867895 (State or other jurisdiction of incorporation or organiza

December 12, 2022 EX-99.1

W. R. BERKLEY CORPORATION ELECTS DANIEL L. MOSLEY AS A DIRECTOR

W. R. Berkley Corporation NEWS 475 Steamboat Road Greenwich, Connecticut 06830 RELEASE (203) 629-3000 FOR IMMEDIATE RELEASE CONTACT: Karen A. Horvath Vice President ? External Financial Communications 203-629-3000 W. R. BERKLEY CORPORATION ELECTS DANIEL L. MOSLEY AS A DIRECTOR Greenwich, CT, December 12, 2022 - W. R. Berkley Corporation (NYSE: WRB) today announced that its Board of Directors has e

November 4, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark one) ? QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2022 or ? Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934. For the Transition Period from to . Commission File Number 1-15202 W. R.

October 24, 2022 EX-99.1

W. R. Berkley Corporation Reports Third Quarter Results Operating Return on Equity of 16.9% and Return on Equity of 13.8%; Core Net Investment Income Up 51.0% and Pre-Tax Underwriting Income of $192 Million

NEWS RELEASE W. R. Berkley Corporation 475 Steamboat Road Greenwich, Connecticut 06830 (203) 629-3000 FOR IMMEDIATE RELEASE CONTACT: Karen A. Horvath Vice President - External Financial Communications (203) 629-3000 W. R. Berkley Corporation Reports Third Quarter Results Operating Return on Equity of 16.9% and Return on Equity of 13.8%; Core Net Investment Income Up 51.0% and Pre-Tax Underwriting

October 24, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 24, 2022 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of in

August 2, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark one) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2022 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934. For the Transition Period from to . Commission File Number 1-15202 W. R. BERK

July 21, 2022 EX-99.1

W. R. Berkley Corporation Reports Second Quarter Results Net Premiums Written Grew 16.9% to a Quarterly Record of $2.6 Billion; Operating Income Increased 43.0%

NEWS RELEASE W. R. Berkley Corporation 475 Steamboat Road Greenwich, Connecticut 06830 (203) 629-3000 FOR IMMEDIATE RELEASE CONTACT: Karen A. Horvath Vice President - External Financial Communications (203) 629-3000 W. R. Berkley Corporation Reports Second Quarter Results Net Premiums Written Grew 16.9% to a Quarterly Record of $2.6 Billion; Operating Income Increased 43.0% Greenwich, CT, July 21,

July 21, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 21, 2022 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of incor

June 29, 2022 11-K

United States Securities and Exchange Commission Washington, D.C. 20549 Form 11-K Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934

United States Securities and Exchange Commission Washington, D.C. 20549 Form 11-K Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 (Mark One) ? Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2021 o Transition Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the transition

June 16, 2022 8-K

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 15, 2022 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of incor

June 16, 2022 EX-3.1

Amendment, dated June 15, 2022, to W.R. Berkley Corporation’s Restated Certificate of Incorporation, as amended (incorporated by reference to Exhibit 3.1 to W.R. Corporation’s Current Form 8-K filed June 16, 2022 (File No. 001-15202).

W. R. Berkley Corporation Exhibit 3.1 CERTIFICATE OF AMENDMENT OF RESTATED CERTIFICATE OF INCORPORATION OF W. R. BERKLEY CORPORATION The undersigned, being the Chief Executive Officer of W. R. BERKLEY CORPORATION, a corporation existing under the laws of the State of Delaware, hereby certifies that: 1. The first paragraph of Article Fourth of the Restated Certificate of Incorporation of said corpo

May 3, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark one) ? QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2022 or ? Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934. For the Transition Period from to . Commission File Number 1-15202 W. R. BER

May 3, 2022 EX-10.1

2022 Performance Unit Award Agreement Under the W. R. Berkley Corporation 2019 Long-Term Incentive Plan

2022 Performance Unit Award Agreement Under the W. R. Berkley Corporation 2019 Long-Term Incentive Plan This 2022 Performance Unit Award Agreement (this ?Agreement?), effective January 1, 2022, represents an Award of Performance Units by W. R. Berkley Corporation (the ?Company?), to the Participant named below, pursuant to the provisions of the W. R. Berkley Corporation 2019 Long-Term Incentive Pl

April 29, 2022 DEF 14A

SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. )

Table of Contents SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.

April 29, 2022 DEFA14A

SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. )

SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.

April 25, 2022 EX-99.1

W. R. Berkley Corporation Reports First Quarter Results Record Quarterly Underwriting Income of $274 Million, Net Income Increased 157% to $591 Million and Return on Equity of 35.5%

NEWS RELEASE W. R. Berkley Corporation 475 Steamboat Road Greenwich, Connecticut 06830 (203) 629-3000 FOR IMMEDIATE RELEASE CONTACT: Karen A. Horvath Vice President - External Financial Communications (203) 629-3000 W. R. Berkley Corporation Reports First Quarter Results Record Quarterly Underwriting Income of $274 Million, Net Income Increased 157% to $591 Million and Return on Equity of 35.5% Gr

April 25, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 25, 2022 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of inco

April 19, 2022 PRE 14A

SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. )

Table of Contents SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.

April 4, 2022 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 1, 2022 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of incor

April 4, 2022 EX-10.1

Credit Agreement, dated as of April 1, 2022, by and among W. R. Berkley Corporation, as borrower, each lender from time to time party thereto, Credit Suisse AG, New York Branch, JPMorgan Chase Bank, N.A. and Morgan Stanley Senior Funding, Inc. as Syndication Agents, and Bank of America, N.A., as Administrative Agent, Several L/C Agent and Fronting L/C Issuer.*

Exhibit 10.1 Execution Version Published CUSIP Number: 92847YAA7 (Deal) 92847YAB5 (Revolving Facility) CREDIT AGREEMENT Dated as of April 1, 2022 among W. R. BERKLEY CORPORATION, as the Borrower, BANK OF AMERICA, N.A., as Administrative Agent, Several L/C Agent and Fronting L/C Issuer, CREDIT SUISSE AG, NEW YORK BRANCH JPMORGAN CHASE BANK, N.A. MORGAN STANLEY SENIOR FUNDING, INC., as Syndication A

March 8, 2022 S-8 POS

As filed with the United States Securities and Exchange Commission on March 8, 2022 Registration No. 333-127598 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT

As filed with the United States Securities and Exchange Commission on March 8, 2022 Registration No.

March 4, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 1, 2022 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of incor

February 24, 2022 EX-4.1

DESCRIPTION OF REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934

DESCRIPTION OF REGISTRANT?S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 As of February 17, 2022, W.

February 24, 2022 EX-21

LIST OF COMPANIES AND SUBSIDIARIES

Exhibit 21 Subsidiaries of the Registrant (as of December 31, 2021). Ownership is 100% unless otherwise indicated. Entity Name Domicile 120dB Films Capital, LLC Delaware 120dB Films Lending, LLC Delaware 34 Leadenhall Street Limited Jersey 52 Lime Street Management Limited United Kingdom 860 Development Co LLC Delaware 860 Washington Street LLC Delaware Abercrombie Textiles, LLC Delaware Acadia In

February 24, 2022 10-K

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 ☐ TRANSITION REPORT PURSUANT TO SECTION

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number 1-15202 W. R. BERKLEY CORPORATION (Ex

February 10, 2022 SC 13G/A

WRB / Berkley (W.R.) Corp. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 8)* Name of issuer: W R Berkley Corp. Title of Class of Securities: Common Stock CUSIP Number: 084423102 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ??R

January 27, 2022 EX-99.1

W. R. Berkley Corporation Reports Fourth Quarter and Full Year Results Fourth Quarter Net Premiums Written Grew 26.6% and Return on Equity of 18.7%

NEWS RELEASE W. R. Berkley Corporation 475 Steamboat Road Greenwich, Connecticut 06830 (203) 629-3000 FOR IMMEDIATE RELEASE CONTACT: Karen A. Horvath Vice President - External Financial Communications (203) 629-3000 W. R. Berkley Corporation Reports Fourth Quarter and Full Year Results Fourth Quarter Net Premiums Written Grew 26.6% and Return on Equity of 18.7% Greenwich, CT, January 27, 2022 - W.

January 27, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 27, 2022 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of in

November 12, 2021 EX-10.2

W. R. Berkley Corporation Deferred Compensation Plan for Directors, as amended and restated effective December 1, 2021

Exhibit 10.2 W. R. BERKLEY CORPORATION DEFERRED COMPENSATION PLAN FOR DIRECTORS AS AMENDED AND RESTATED EFFECTIVE DECEMBER 1, 2021 Section 1. Effective Date This amendment and restatement of the W. R. Berkley Corporation Deferred Compensation Plan for Directors (the ?Plan?) shall be effective as of December 1, 2021 (the ?Effective Date?). This Plan was originally created as a spin-off from the ori

November 12, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 5, 2021 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of in

November 12, 2021 EX-10.1

W. R. Berkley Corporation Deferred Compensation Plan for Officers, as amended and restated effective December 1, 2021

Exhibit 10.1 W. R. BERKLEY CORPORATION DEFERRED COMPENSATION PLAN FOR OFFICERS AS AMENDED AND RESTATED EFFECTIVE DECEMBER 1, 2021 Section 1. Effective Date The W. R. Berkley Corporation Deferred Compensation Plan for Officers (the ?Plan?) was originally created as a spin-off from the W. R. Berkley Corporation Deferred Compensation Plan for Officers, as adopted September 1, 1986, and as subsequentl

November 4, 2021 EX-10.1

2021 Performance Unit Award Agreement Under the W. R. Berkley Corporation 2019 Long-Term Incentive Plan

Exhibit 10.1 2021 Performance Unit Award Agreement Under the W. R. Berkley Corporation 2019 Long-Term Incentive Plan This 2021 Performance Unit Award Agreement (this ?Agreement?), effective January 1, 2021, represents an Award of Performance Units by W. R. Berkley Corporation (the ?Company?), to the Participant named below, pursuant to the provisions of the W. R. Berkley Corporation 2019 Long-Term

November 4, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark one) ? QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2021 or ? Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934. For the Transition Period from to . Commission File Number 1-15202 W. R.

October 21, 2021 EX-99.1

W. R. BERKLEY CORPORATION REPORTS THIRD QUARTER RESULTS Third Quarter Net Income Increased 72.3% and Return on Equity of 16.6%

NEWS RELEASE W. R. Berkley Corporation 475 Steamboat Road Greenwich, Connecticut 06830 (203) 629-3000 FOR IMMEDIATE RELEASE CONTACT: Karen A. Horvath Vice President - External Financial Communications (203) 629-3000 W. R. BERKLEY CORPORATION REPORTS THIRD QUARTER RESULTS Third Quarter Net Income Increased 72.3% and Return on Equity of 16.6% Greenwich, CT, October 21, 2021 - W. R. Berkley Corporati

October 21, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 21, 2021 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of in

September 15, 2021 EX-4.2

Third Supplemental Indenture, dated as of September 15, 2021, between the Company and the Trustee.

Exhibit 4.2 EXECUTION VERSION W. R. BERKLEY CORPORATION TO THE BANK OF NEW YORK MELLON, as Trustee THIRD SUPPLEMENTAL INDENTURE TO INDENTURE DATED MAY 12, 2020 (SENIOR DEBT SECURITIES) Dated as of as of September 15, 2021 3.150% Senior Notes due 2061 TABLE OF CONTENTS Page ARTICLE I Relation to Indenture; Definitions Section 1.1. APPLICATION OF THIRD SUPPLEMENTAL INDENTURE 1 Section 1.2. DEFINITIO

September 15, 2021 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 15, 2021 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of

September 9, 2021 EX-1.1

Underwriting Agreement, dated as of September 8, 2021, between the Company and BofA Securities, Inc., Credit Suisse Securities (USA) LLC, J.P. Morgan Securities LLC and Morgan Stanley & Co. LLC, as underwriters.

Exhibit 1.1 EXECUTION VERSION $350,000,000 W. R. BERKLEY CORPORATION 3.150% Senior Notes due 2061 UNDERWRITING AGREEMENT September 8, 2021 Credit Suisse Securities (USA) LLC Eleven Madison Avenue New York, New York 10010 BofA Securities, Inc. One Bryant Park New York, New York 10036 J.P. Morgan Securities LLC 383 Madison Avenue New York, New York 10179 Morgan Stanley & Co. LLC 1585 Broadway New Yo

September 9, 2021 424B5

CALCULATION OF REGISTRATION FEE Title of each Class of Securities to be Registered Maximum Aggregate Offering Price Amount of Registration Fee (1) (2) 3.150% Senior Notes due 2061 $350,000,000 $38,185

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-249950 CALCULATION OF REGISTRATION FEE Title of each Class of Securities to be Registered Maximum Aggregate Offering Price Amount of Registration Fee (1) (2) 3.150% Senior Notes due 2061 $350,000,000 $38,185 (1) Calculated in accordance with Rule 457(r) under the Securities Act of 1933, as amended. (2) A registration fee of $3

September 9, 2021 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 8, 2021 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of i

September 8, 2021 FWP

W. R. Berkley Corporation 3.150% SENIOR NOTES DUE 2061 Issuer: W. R. Berkley Corporation Securities: 3.150% Senior Notes due 2061 Security Type: Senior Unsecured Fixed Rate Notes Anticipated Ratings*: Moody’s: Baa1 (Stable) / S&P: BBB+ (Stable) / Fit

Issuer Free Writing Prospectus Filed Pursuant to Rule 433 Relating to Preliminary Prospectus Supplement dated September 8, 2021 to Prospectus dated November 6, 2020 Registration Statement No.

September 8, 2021 424B5

Subject to Completion Preliminary Prospectus Supplement Dated September 8, 2021

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-249950 The information in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these securities and are not soliciting an offer to buy these securities in any jurisdiction where the offer or sale is not permitt

August 2, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark one) ? QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2021 or ? Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934. For the Transition Period from to . Commission File Number 1-15202 W. R. BERK

July 22, 2021 EX-99.1

W. R. BERKLEY CORPORATION REPORTS SECOND QUARTER RESULTS Second Quarter Net Premiums Written Grew 27.2% and Return on Equity of 15.0%

NEWS RELEASE W. R. Berkley Corporation 475 Steamboat Road Greenwich, Connecticut 06830 (203) 629-3000 FOR IMMEDIATE RELEASE CONTACT: Karen A. Horvath Vice President - External Financial Communications (203) 629-3000 W. R. BERKLEY CORPORATION REPORTS SECOND QUARTER RESULTS Second Quarter Net Premiums Written Grew 27.2% and Return on Equity of 15.0% Greenwich, CT, July 22, 2021 - W. R. Berkley Corpo

July 22, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 22, 2021 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of incor

June 29, 2021 11-K

United States Securities and Exchange Commission Washington, D.C. 20549 Form 11-K Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934

United States Securities and Exchange Commission Washington, D.C. 20549 Form 11-K Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 (Mark One) ? Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2020 o Transition Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the transition

June 15, 2021 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 15, 2021 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of incor

June 1, 2021 EX-99.25

EX-99.25

NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED SECURITIES The New York Stock Exchange hereby notifies the SEC of its intention to remove the entire class of the stated securities from listing and registration on the Exchange at the opening of business on June 14, 2021, pursuant to the provisions of Rule 12d2-2 (a).

May 5, 2021 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark one) ? QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended March 31, 2021 or ? Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934. For the Transition Period from to . Commission File Number 1-15202 W. R. BER

April 27, 2021 DEFA14A

- DEFA14A

SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.

April 27, 2021 DEF 14A

- DEF 14A

Table of Contents SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.

April 20, 2021 EX-99.1

W. R. BERKLEY CORPORATION REPORTS FIRST QUARTER RESULTS First Quarter Gross Premiums Written Grew 11.4% and Return on Equity of 14.5%

NEWS RELEASE W. R. Berkley Corporation 475 Steamboat Road Greenwich, Connecticut 06830 (203) 629-3000 FOR IMMEDIATE RELEASE CONTACT: Karen A. Horvath Vice President - External Financial Communications (203) 629-3000 W. R. BERKLEY CORPORATION REPORTS FIRST QUARTER RESULTS First Quarter Gross Premiums Written Grew 11.4% and Return on Equity of 14.5% Greenwich, CT, April 20, 2021 - W. R. Berkley Corp

April 20, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 20, 2021 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of inco

April 19, 2021 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): April 19, 2021 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-15202 22-1867895 (State or Other Jurisdiction of Incorporation) (Commissio

March 16, 2021 EX-4.2

Second Supplemental Indenture, dated as of March 16, 2021, between the Company and the Trustee.

Exhibit 4.2 EXECUTION VERSION W. R. BERKLEY CORPORATION TO THE BANK OF NEW YORK MELLON, as Trustee SECOND SUPPLEMENTAL INDENTURE TO INDENTURE DATED MAY 12, 2020 (SENIOR DEBT SECURITIES) Dated as of as of March 16, 2021 3.550% Senior Notes due 2052 TABLE OF CONTENTS Page ARTICLE I Relation to Indenture; Definitions Section 1.1. APPLICATION OF SECOND SUPPLEMENTAL INDENTURE 1 Section 1.2. DEFINITIONS

March 16, 2021 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 16, 2021 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of inco

March 12, 2021 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 9, 2021 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of incor

March 12, 2021 EX-1.1

Underwriting Agreement, dated as of March 9, 2021, between the Company and BofA Securities, Inc., Credit Suisse Securities (USA) LLC, J.P. Morgan Securities LLC and Morgan Stanley & Co. LLC, as underwriters.

Exhibit 1.1 EXECUTION VERSION $400,000,000 W. R. BERKLEY CORPORATION 3.550% Senior Notes due 2052 UNDERWRITING AGREEMENT March 9, 2021 Credit Suisse Securities (USA) LLC Eleven Madison Avenue New York, New York 10010 BofA Securities, Inc. One Bryant Park New York, New York 10036 J.P. Morgan Securities LLC 383 Madison Avenue New York, New York 10179 Morgan Stanley & Co. LLC 1585 Broadway New York,

March 11, 2021 424B5

CALCULATION OF REGISTRATION FEE Title of each Class of Securities to be Registered Maximum Aggregate Offering Price Amount of Registration Fee (1) (2) 3.550% Senior Notes due 2052 $400,000,000 $43,640

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-249950 CALCULATION OF REGISTRATION FEE Title of each Class of Securities to be Registered Maximum Aggregate Offering Price Amount of Registration Fee (1) (2) 3.550% Senior Notes due 2052 $400,000,000 $43,640 (1) Calculated in accordance with Rule 457(r) under the Securities Act of 1933, as amended. (2) A registration fee of $4

March 9, 2021 424B5

Subject to Completion Preliminary Prospectus Supplement Dated March 9, 2021

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-249950 The information in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these securities and are not soliciting an offer to buy these securities in any jurisdiction where the offer or sale is not permitt

March 9, 2021 FWP

W. R. Berkley Corporation 3.550% SENIOR NOTES DUE 2052 Issuer: W. R. Berkley Corporation Securities: 3.550% Senior Notes due 2052 Security Type: Senior Unsecured Fixed Rate Notes Anticipated Ratings*: Moody’s: Baa1 (Stable) / S&P: BBB+ (Stable) Minim

Issuer Free Writing Prospectus Filed Pursuant to Rule 433 Relating to Preliminary Prospectus Supplement dated March 9, 2021 to Prospectus dated November 6, 2020 Registration Statement No.

March 1, 2021 EX-99.25

EX-99.25

NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED SECURITIES The New York Stock Exchange hereby notifies the SEC of its intention to remove the entire class of the stated securities from listing and registration on the Exchange at the opening of business on March 12, 2021, pursuant to the provisions of Rule 12d2-2 (a).

February 18, 2021 EX-21

LIST OF COMPANIES AND SUBSIDIARIES

Exhibit 21 Subsidiaries of the Registrant (as of December 31, 2019). Ownership is 100% unless otherwise indicated. Entity Name Domicile 120dB Films Capital, LLC (90% ownership) Delaware 120dB Films Lending, LLC Delaware 34 Leadenhall Street Limited Jersey 52 Lime Street Management Limited United Kingdom 860 Development Co LLC Delaware 860 Washington Street LLC (75% ownership) Delaware Abercrombie

February 18, 2021 EX-4.1

DESCRIPTION OF REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934

DESCRIPTION OF REGISTRANT?S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 As of February 20, 2020, W.

February 18, 2021 10-K

Annual Report - 10-K

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . Commission file number 1-15202 W. R. BERKLEY CORPORATION (Ex

February 10, 2021 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): February 10, 2021 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-15202 22-1867895 (State or Other Jurisdiction of Incorporation) (Commis

February 10, 2021 SC 13G/A

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 7)*

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 7)* Name of issuer: W R Berkley Corp. Title of Class of Securities: Common Stock CUSIP Number: 084423102 Date of Event Which Requires Filing of this Statement: December 31, 2020 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ R

February 10, 2021 EX-4.2

Fourth Supplemental Indenture, dated as of February 10, 2021, between the Company and the Trustee, including the form of the Securities attached as Exhibit A thereto.

EX-4.2 Exhibit 4.2 Execution Version W. R. BERKLEY CORPORATION TO THE BANK OF NEW YORK MELLON, Trustee FOURTH SUPPLEMENTAL INDENTURE TO SUBORDINATED INDENTURE DATED MARCH 26, 2018 (SUBORDINATED DEBT SECURITIES) Dated as of February 10, 2021 4.125% Subordinated Debentures due 2061 TABLE OF CONTENTS Page ARTICLE I APPLICATION OF FOURTH SUPPLEMENTAL INDENTURE; DEFINITIONS 2 Section 1.1 APPLICATION OF

February 10, 2021 8-A12B

- 8-A12B

8-A12B UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State of incorporation or organization) (I.R.S. Employer Identification No.) 475 Steambo

February 4, 2021 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): February 3, 2021 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-15202 22-1867895 (State or Other Jurisdiction of Incorporation) (Commiss

February 4, 2021 EX-1.1

Underwriting Agreement, dated as of February 3, 2021, between the Company and Morgan Stanley & Co. LLC, BofA Securities, Inc., UBS Securities LLC and Wells Fargo Securities, LLC, as representatives of the several underwriters named therein.

Exhibit 1.1 $300,000,000 W. R. BERKLEY CORPORATION 4.125% Subordinated Debentures Due 2061 UNDERWRITING AGREEMENT February 3, 2021 Morgan Stanley & Co. LLC 1585 Broadway New York, New York 10036 BofA Securities, Inc. One Bryant Park New York, New York 10036 UBS Securities LLC 1285 Avenue of the Americas New York, New York 10019 Wells Fargo Securities, LLC 550 South Tryon Street, 5th Floor Charlott

February 4, 2021 424B5

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities Offered Maximum Aggregate Offering Price Amount of Registration Fee(1)(2) 4.125% Subordinated Debentures due 2061 $300,000,000 $32,730

424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-249950 CALCULATION OF REGISTRATION FEE Title of Each Class of Securities Offered Maximum Aggregate Offering Price Amount of Registration Fee(1)(2) 4.125% Subordinated Debentures due 2061 $300,000,000 $32,730 (1) Calculated in accordance with Rule 457(r) under the Securities Act of 1933, as amended. (2) A registration fee

February 3, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): February 3, 2021 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-15202 22-1867895 (State or Other Jurisdiction of Incorporation) (Commiss

February 3, 2021 FWP

W. R. Berkley Corporation $300,000,000 4.125% SUBORDINATED DEBENTURES DUE 2061

Issuer Free Writing Prospectus Filed Pursuant to Rule 433 Relating to Preliminary Prospectus Supplement dated February 3, 2021 to Prospectus dated November 6, 2020 Registration Statement No.

February 3, 2021 EX-99.1

Consolidated Financial Summary (Amounts in thousands, except per share data)

Exhibit 99.1 Unaudited financial information relating to the Company Consolidated Financial Summary (Amounts in thousands, except per share data) Fourth Quarter Twelve Months 2020 2019 2020 2019 Revenues: Net premiums written $ 1,797,457 $ 1,660,528 $ 7,262,437 $ 6,863,499 Change in unearned premiums 16,133 56,253 (331,594) (230,211) Net premiums earned 1,813,590 1,716,781 6,930,843 6,633,288 Net

February 3, 2021 424B5

Subject to Completion Preliminary Prospectus Supplement dated February 3, 2021

424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-249950 The information in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these securities and are not soliciting an offer to buy these securities in any jurisdiction where the offer or sale is not p

January 29, 2021 8-K

Other Events - FORM 8K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): January 29, 2021 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-15202 22-1867895 (State or Other Jurisdiction of Incorporation) (Commiss

January 26, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 26, 2021 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of in

January 26, 2021 EX-99.1

W. R. BERKLEY CORPORATION REPORTS FOURTH QUARTER AND FULL YEAR RESULTS Fourth Quarter Gross Premiums Written Grew 9.3% and Return on Equity of 20.6%

NEWS RELEASE W. R. Berkley Corporation 475 Steamboat Road Greenwich, Connecticut 06830 (203) 629-3000 FOR IMMEDIATE RELEASE CONTACT: Karen A. Horvath Vice President - External Financial Communications (203) 629-3000 W. R. BERKLEY CORPORATION REPORTS FOURTH QUARTER AND FULL YEAR RESULTS Fourth Quarter Gross Premiums Written Grew 9.3% and Return on Equity of 20.6% Greenwich, CT, January 26, 2021 - W

December 16, 2020 EX-10.1

Amendment to the W. R. Berkley Corporation Deferred Compensation Plan for Officers, effective as of December 31, 2020

Exhibit 10.1 AMENDMENT TO THE W. R. BERKLEY CORPORATION DEFERRED COMPENSATION PLAN FOR OFFICERS WHEREAS, W. R. Berkley Corporation, a corporation duly organized and existing under the laws of the State of Delaware (the “Company”), currently maintains and sponsors the W. R. Berkley Corporation Deferred Compensation Plan for Officers (the “Plan”), a nonqualified defined contribution plan intended to

December 16, 2020 EX-10.2

Amendment to the W. R. Berkley Corporation Deferred Compensation Plan for Directors, effective as of December 31, 2020

Exhibit 10.2 W. R. BERKLEY CORPORATION DEFERRED COMPENSATION PLAN FOR DIRECTORS WHEREAS, W. R. Berkley Corporation, a corporation duly organized and existing under the laws of the State of Delaware (the “Company”), currently maintains and sponsors the W. R. Berkley Corporation Deferred Compensation Plan for Directors (the “Plan”), a nonqualified defined contribution plan intended to satisfy the re

December 16, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): December 11, 2020 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-15202 22-1867895 (State or Other Jurisdiction of Incorporation) (Commis

November 6, 2020 EX-25.1

Statement of Eligibility of The Bank of New York Mellon, as trustee, on Form T-1 for the W. R. Berkley Corporation Senior Indenture, dated as of May 12, 2020

Exhibit 25.1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE ☐ CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b)(2) THE BANK OF NEW YORK MELLON (Exact name of trustee as specified in its charter) New York 13-5160382 (Ju

November 6, 2020 EX-25.2

Statement of Eligibility of The Bank of New York Mellon, as trustee, on Form T-1 for the W. R. Berkley Corporation Subordinated Indenture, dated as of March 26, 2018

Exhibit 25.2 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE ☐ CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b)(2) THE BANK OF NEW YORK MELLON (Exact name of trustee as specified in its charter) New York 13-5160382 (Ju

November 6, 2020 S-3ASR

- S-3ASR

S-3ASR Table of Contents As filed with the Securities and Exchange Commission on November 6, 2020 Registration No.

November 5, 2020 EX-10.1

PERFORMANCE-BASED RESTRICTED STOCK UNIT AGREEMENT

Exhibit 10.1 PERFORMANCE-BASED RESTRICTED STOCK UNIT AGREEMENT Under the W. R. Berkley Corporation 2018 Stock Incentive Plan THIS AGREEMENT, dated as of , 2020, by and between W. R. BERKLEY CORPORATION, a Delaware corporation (the “Company”), and grantee as set forth on Exhibit A hereto (the “Grantee”). Important jurisdiction-specific modifications to this Agreement are contained in Exhibit B here

November 5, 2020 10-Q

Quarterly Report - 10-Q 3Q20

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark one) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2020 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934. For the Transition Period from to . Commission File Number 1-15202 W. R.

October 21, 2020 EX-99.25

EX-99.25

NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED SECURITIES The New York Stock Exchange hereby notifies the SEC of its intention to remove the entire class of the stated securities from listing and registration on the Exchange at the opening of business on November 02, 2020, pursuant to the provisions of Rule 12d2-2 (a).

October 20, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition - 8-K 3Q20 COVER EARNINGS RELEASE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 20, 2020 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of in

October 20, 2020 EX-99.1

W. R. BERKLEY CORPORATION REPORTS THIRD QUARTER RESULTS Gross Premiums Written Grew 8.1%; Return on Equity of 10.0%

NEWS RELEASE W. R. Berkley Corporation 475 Steamboat Road Greenwich, Connecticut 06830 (203) 629-3000 FOR IMMEDIATE RELEASE CONTACT: Karen A. Horvath Vice President - External Financial Communications (203) 629-3000 W. R. BERKLEY CORPORATION REPORTS THIRD QUARTER RESULTS Gross Premiums Written Grew 8.1%; Return on Equity of 10.0% Greenwich, CT, October 20, 2020 - W. R. Berkley Corporation (NYSE: W

September 21, 2020 EX-4.2

Third Supplemental Indenture, dated as of September 21, 2020, between the Company and the Trustee, including the form of the Securities attached as Exhibit A thereto.

EX-4.2 Exhibit 4.2 Execution Version W. R. BERKLEY CORPORATION TO THE BANK OF NEW YORK MELLON, Trustee THIRD SUPPLEMENTAL INDENTURE TO SUBORDINATED INDENTURE DATED MARCH 26, 2018 (SUBORDINATED DEBT SECURITIES) Dated as of September 21, 2020 4.25% Subordinated Debentures due 2060 TABLE OF CONTENTS Page ARTICLE I APPLICATION OF THIRD SUPPLEMENTAL INDENTURE; DEFINITIONS 1 Section 1.1 APPLICATION OF T

September 21, 2020 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): September 21, 2020 W. R. BERKLEY

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): September 21, 2020 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-15202 22-1867895 (State or Other Jurisdiction of Incorporation) (Commi

September 21, 2020 8-A12B

- 8-A12B

8-A12B UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State of incorporation or organization) (I.R.S. Employer Identification No.) 475 Steambo

September 17, 2020 EX-1.1

Underwriting Agreement, dated as of September 16, 2020, between the Company and Morgan Stanley & Co. LLC, BofA Securities, Inc., UBS Securities LLC and Wells Fargo Securities, LLC, as representatives of the several underwriters named therein.

EX-1.1 Exhibit 1.1 Execution Version $250,000,000 W. R. BERKLEY CORPORATION 4.25% Subordinated Debentures Due 2060 UNDERWRITING AGREEMENT September 16, 2020 Morgan Stanley & Co. LLC 1585 Broadway New York, New York 10036 BofA Securities, Inc. One Bryant Park New York, New York 10036 UBS Securities LLC 1285 Avenue of the Americas New York, New York 10019 Wells Fargo Securities, LLC 550 South Tryon

September 17, 2020 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): September 16, 2020 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-15202 22-1867895 (State or Other Jurisdiction of Incorporation) (Commi

September 17, 2020 424B5

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities Offered Maximum Aggregate Offering Price Amount of Registration Fee(1)(2) 4.25% Subordinated Debentures due 2060 $250,000,000 $32,450

424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-221559 CALCULATION OF REGISTRATION FEE Title of Each Class of Securities Offered Maximum Aggregate Offering Price Amount of Registration Fee(1)(2) 4.25% Subordinated Debentures due 2060 $250,000,000 $32,450 (1) Calculated in accordance with Rule 457(r) under the Securities Act of 1933, as amended. (2) A registration fee

September 16, 2020 424B5

Subject to Completion Preliminary Prospectus Supplement dated September 16, 2020

424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-221559 The information in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these securities and are not soliciting an offer to buy these securities in any jurisdiction where the offer or sale is not p

September 16, 2020 FWP

W. R. Berkley Corporation 4.25% SUBORDINATED DEBENTURES DUE 2060 Issuer: W. R. Berkley Corporation Securities: 4.25% Subordinated Debentures due 2060 Security Type: Subordinated Debentures Anticipated Ratings*: Moody’s: Baa2 (Stable) / S&P: BBB- (Sta

Issuer Free Writing Prospectus Filed Pursuant to Rule 433 Relating to Preliminary Prospectus Supplement dated September 16, 2020 to Prospectus dated November 14, 2017 Registration Statement No.

September 9, 2020 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Other Events - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 9, 2020 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of i

September 2, 2020 EX-1.1

Underwriting Agreement, dated as of September 1, 2020, between the Company and, Morgan Stanley & Co. LLC and Credit Suisse Securities (USA) LLC, as underwriters.

EX-1.1 Exhibit 1.1 EXECUTION VERSION $170,000,000 W. R. BERKLEY CORPORATION 4.00% Senior Notes due 2050 UNDERWRITING AGREEMENT September 1, 2020 Credit Suisse Securities (USA) LLC Eleven Madison Avenue New York, New York 10010 Morgan Stanley & Co. LLC 1585 Broadway New York, New York 10036 As Representatives of the Several Underwriters Dear Sirs and Mesdames: W. R. Berkley Corporation, a Delaware

September 2, 2020 424B5

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities Offered Maximum Aggregate Offering Price Amount of Registration Fee(1)(2) 4.00% Senior Notes due 2050 $199,268,900 $25,866

424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-221559 CALCULATION OF REGISTRATION FEE Title of Each Class of Securities Offered Maximum Aggregate Offering Price Amount of Registration Fee(1)(2) 4.00% Senior Notes due 2050 $199,268,900 $25,866 (1) Calculated in accordance with Rule 457(r) under the Securities Act of 1933, as amended. (2) A registration fee of $25,866

September 2, 2020 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 1, 2020 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of i

September 1, 2020 FWP

W. R. Berkley Corporation 4.00% SENIOR NOTES DUE 2050 Issuer: W. R. Berkley Corporation Securities: 4.00% Senior Notes due 2050, to become immediately fungible upon the Settlement Date with the outstanding $300,000,000 aggregate principal amount of 4

FWP Issuer Free Writing Prospectus Filed Pursuant to Rule 433 Relating to Preliminary Prospectus Supplement dated September 1, 2020 to Prospectus dated November 14, 2017 Registration Statement No.

September 1, 2020 424B5

Subject to Completion Preliminary Prospectus Supplement Dated September 1, 2020

424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-221559 The information in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these securities and are not soliciting an offer to buy these securities in any jurisdiction where the offer or sale is not p

August 3, 2020 EX-10.1

2020 Performance Unit Award Agreement

2020 Performance Unit Award Agreement Under the W. R. Berkley Corporation 2019 Long-Term Incentive Plan This 2020 Performance Unit Award Agreement (this “Agreement”), effective January 1, 2020, represents an Award of Performance Units by W. R. Berkley Corporation (the “Company”), to the Participant named below, pursuant to the provisions of the W. R. Berkley Corporation 2019 Long-Term Incentive Pl

August 3, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark one) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended June 30, 2020 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934. For the Transition Period from to . Commission File Number 1-15202 W. R. BERK

July 21, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION 
Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 21, 2020 Commission File Number 1-15202 W. R. BERKLEY CORPORATION 
(Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of inc

July 21, 2020 EX-99.1

W. R. BERKLEY CORPORATION REPORTS SECOND QUARTER RESULTS Gross Premiums Written Grew to $2.132 Billion; Book Value Per Share Grew 7.7%, Before Dividends and Share Repurchases

NEWS RELEASE W. R. Berkley Corporation 475 Steamboat Road Greenwich, Connecticut 06830 (203) 629-3000 FOR IMMEDIATE RELEASE CONTACT: Karen A. Horvath Vice President - External Financial Communications (203) 629-3000 W. R. BERKLEY CORPORATION REPORTS SECOND QUARTER RESULTS Gross Premiums Written Grew to $2.132 Billion; Book Value Per Share Grew 7.7%, Before Dividends and Share Repurchases Greenwich

June 29, 2020 11-K

- 11-K 2019

United States Securities and Exchange Commission Washington, D.C. 20549 Form 11-K Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 (Mark One) þ Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2019 o Transition Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the transition

June 16, 2020 8-K

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 12, 2020 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of incor

June 16, 2020 EX-3.1

Amendment, dated June 12, 2020, to W. R. Berkley Corporation’s Restated Certificate of Incorporation, as amended (incorporated by reference to Exhibit 3.1 to W. R. Berkley Corporation’s Current Report on Form 8-K filed June 16, 2020 (File No. 001-15202))

W. R. Berkley Corporation Exhibit 3.1 CERTIFICATE OF AMENDMENT OF RESTATED CERTIFICATE OF INCORPORATION OF W. R. BERKLEY CORPORATION The undersigned, being the Chief Executive Officer of W. R. BERKLEY CORPORATION, a corporation existing under the laws of the State of Delaware, hereby certifies that: 1. The first paragraph of Article Fourth of the Restated Certificate of Incorporation of said corpo

May 29, 2020 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 27, 2020 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of incorp

May 26, 2020 DEFA14A

- DEFA14A

DEFA14A SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.

May 12, 2020 EX-4.1

Indenture, dated as of May 12, 2020, between the Company and the Trustee (incorporated herein by reference to Exhibit 4.1 to the Company’s Current Report on Form 8-K filed on May 12, 2020).

EX-4.1 Exhibit 4.1 Execution Version SENIOR INDENTURE W. R. BERKLEY CORPORATION, Issuer To THE BANK OF NEW YORK MELLON, Trustee INDENTURE Dated as of May 12, 2020 Senior Debt Securities Reconciliation and tie between Trust Indenture Act of 1939 (the “Trust Indenture Act”) and Indenture Trust Indenture Act Section Indenture Section §§ 310(a)(1) 6.8 (a)(2) 6.8 (b) 6.9 §§ 312(a) 7.1 (b) 7.2 (c) 7.2 §

May 12, 2020 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 12, 2020 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of incorp

May 12, 2020 EX-4.2

First Supplemental Indenture, dated as of May 12, 2020, between the Company and the Trustee, including the form of the Notes attached as Exhibit A thereto.

EX-4.2 Exhibit 4.2 Execution Version W. R. BERKLEY CORPORATION TO THE BANK OF NEW YORK MELLON, as Trustee FIRST SUPPLEMENTAL INDENTURE TO INDENTURE DATED MAY 12, 2020 (SENIOR DEBT SECURITIES) Dated as of as of May 12, 2020 4.00% Senior Notes due 2050 TABLE OF CONTENTS Page ARTICLE I Relation to Indenture; Definitions Section 1.1. APPLICATION OF FIRST SUPPLEMENTAL INDENTURE 1 Section 1.2. DEFINITIO

May 6, 2020 EX-1.1

Underwriting Agreement, dated as of May 5, 2020, between the Company and BofA Securities, Inc., Credit Suisse Securities (USA) LLC, J.P. Morgan Securities LLC and Morgan Stanley & Co. LLC, as underwriters.

EX-1.1 Exhibit 1.1 EXECUTION VERSION $300,000,000 W. R. BERKLEY CORPORATION 4.00% Senior Notes due 2050 UNDERWRITING AGREEMENT May 5, 2020 BofA Securities, Inc. One Bryant Park New York, New York 10036 Credit Suisse Securities (USA) LLC Eleven Madison Avenue New York, New York 10010 J.P. Morgan Securities LLC 383 Madison Avenue New York, New York 10179 Morgan Stanley & Co. LLC 1585 Broadway New Yo

May 6, 2020 FWP

W. R. Berkley Corporation 4.00% SENIOR NOTES DUE 2050 Issuer: W. R. Berkley Corporation Securities: 4.00% Senior Notes due 2050 Security Type: Senior Unsecured Fixed Rate Notes Anticipated Ratings*: Moody’s: Baa1 (Stable) / S&P: BBB+ (Stable) Minimum

FWP Issuer Free Writing Prospectus Filed Pursuant to Rule 433 Relating to Preliminary Prospectus Supplement dated May 5, 2020 to Prospectus dated November 14, 2017 Registration Statement No.

May 6, 2020 424B5

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities Offered Maximum Aggregate Offering Price Amount of Registration Fee(1)(2) 4.00% Senior Notes due 2050 $300,000,000 $38,940.00

424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-221559 CALCULATION OF REGISTRATION FEE Title of Each Class of Securities Offered Maximum Aggregate Offering Price Amount of Registration Fee(1)(2) 4.00% Senior Notes due 2050 $300,000,000 $38,940.00 (1) Calculated in accordance with Rule 457(r) under the Securities Act of 1933, as amended. (2) A registration fee of $38,9

May 6, 2020 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 5, 2020 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of incorpo

May 5, 2020 424B5

Subject to Completion Preliminary Prospectus Supplement Dated May 5, 2020

424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-221559 The information in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these securities and are not soliciting an offer to buy these securities in any jurisdiction where the offer or sale is not p

May 4, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark one) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934For the Quarterly Period Ended March 31, 2020 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934.For the Transition Period from to . Commission File Number 1-15202 W. R. BERKL

April 27, 2020 DEFA14A

- DEFA14A

DEFA14A SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.

April 27, 2020 DEF 14A

Definitive Proxy Statement

DEF 14A Table of Contents SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.

April 21, 2020 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 21, 2020 Commission File Nu

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 21, 2020 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of inco

April 21, 2020 EX-99.1

Vice President - External Financial Communications (203) 629-3000 W. R. BERKLEY CORPORATION REPORTS FIRST QUARTER RESULTS Greenwich, CT, April 21, 2020 - W. R. Berkley Corporation (NYSE: WRB) today reported first quarter 2020 growth in gross premiums

NEWS RELEASE W. R. Berkley Corporation 475 Steamboat Road Greenwich, Connecticut 06830 (203) 629-3000 FOR IMMEDIATE RELEASE CONTACT: Karen A. Horvath Vice President - External Financial Communications (203) 629-3000 W. R. BERKLEY CORPORATION REPORTS FIRST QUARTER RESULTS Greenwich, CT, April 21, 2020 - W. R. Berkley Corporation (NYSE: WRB) today reported first quarter 2020 growth in gross premiums

April 17, 2020 PRE 14A

WRB / Berkley (W.R.) Corp. PRE 14A - - PRE 14A

PRE 14A Table of Contents SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.

February 20, 2020 EX-21

LIST OF COMPANIES AND SUBSIDIARIES

Exhibit 21 Subsidiaries of the Registrant (as of December 31, 2019). Ownership is 100% unless otherwise indicated. Entity Name Domicile 120dB Films Capital, LLC (90% ownership) Delaware 120dB Films Lending, LLC Delaware 27 Leadenhall Street Properties Limited Jersey 34 Leadenhall Street Limited Jersey 52 Lime Street Management Limited United Kingdom 860 Development Co LLC Delaware 860 Washington S

February 20, 2020 10-K

Annual Report - 10-K 4Q19

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934For the fiscal year ended December 31, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934For the transition period from to . Commission file number 1-15202 W. R. BERKLEY CORPORATION (Exac

February 20, 2020 EX-4.1

DESCRIPTION OF REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934

DESCRIPTION OF REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 As of February 20, 2020, W.

February 12, 2020 SC 13G/A

WRB / Berkley (W.R.) Corp. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv01042-wrberkleycorp.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 6)* Name of issuer: WR Berkley Corp Title of Class of Securities: Common Stock CUSIP Number: 084423102 Date of Event Which Requires Filing of this Statement: December 31, 2019 Check the appropriate box to designate the

January 28, 2020 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 28, 2020 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of in

January 28, 2020 EX-99.1

Vice President - External Financial Communications (203) 629-3000 W. R. BERKLEY CORPORATION REPORTS FOURTH QUARTER AND FULL YEAR RESULTS Greenwich, CT, January 28, 2020 - W. R. Berkley Corporation (NYSE: WRB)

NEWS RELEASE W. R. Berkley Corporation 475 Steamboat Road Greenwich, Connecticut 06830 (203) 629-3000 FOR IMMEDIATE RELEASE CONTACT: Karen A. Horvath Vice President - External Financial Communications (203) 629-3000 W. R. BERKLEY CORPORATION REPORTS FOURTH QUARTER AND FULL YEAR RESULTS Greenwich, CT, January 28, 2020 - W. R. Berkley Corporation (NYSE: WRB) today reported fourth quarter growth in g

December 16, 2019 8-A12B

WRB / Berkley (W.R.) Corp. 8-A12B - - 8-A12B

8-A12B UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State of incorporation or organization) (I.R.S. Employer Identification No.) 475 Steambo

December 16, 2019 EX-4.2

Second Supplemental Indenture, dated as of December 16, 2019, between the Company and the Trustee, including the form of the Securities attached as Exhibit A thereto.

EX-4.2 Exhibit 4.2 Execution Version W. R. BERKLEY CORPORATION TO THE BANK OF NEW YORK MELLON, Trustee SECOND SUPPLEMENTAL INDENTURE TO SUBORDINATED INDENTURE DATED MARCH 26, 2018 (SUBORDINATED DEBT SECURITIES) Dated as of December 16, 2019 5.10% Subordinated Debentures due 2059 TABLE OF CONTENTS Page ARTICLE I APPLICATION OF SECOND SUPPLEMENTAL INDENTURE; DEFINITIONS 4 Section 1.1 APPLICATION OF

December 16, 2019 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): December 16, 2019 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-15202 22-1867895 (State or Other Jurisdiction of Incorporation) (Commis

December 10, 2019 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): December 9, 2019 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-15202 22-1867895 (State or Other Jurisdiction of Incorporation) (Commiss

December 10, 2019 424B5

CALCULATION OF REGISTRATION FEE Title of Each Class of Securities Offered Maximum Aggregate Offering Price Amount of Registration Fee(1)(2) 5.10% Subordinated Debentures due 2059 $300,000,000 $38,940.00

424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-221559 CALCULATION OF REGISTRATION FEE Title of Each Class of Securities Offered Maximum Aggregate Offering Price Amount of Registration Fee(1)(2) 5.10% Subordinated Debentures due 2059 $300,000,000 $38,940.00 (1) Calculated in accordance with Rule 457(r) under the Securities Act of 1933, as amended. (2) A registration f

December 10, 2019 EX-1.1

Underwriting Agreement, dated as of December 9, 2019, between the Company and Morgan Stanley & Co. LLC, BofA Securities, Inc., UBS Securities LLC and Wells Fargo Securities, LLC, as representatives of the several underwriters named therein.

EX-1.1 Exhibit 1.1 Execution Version $300,000,000 W. R. BERKLEY CORPORATION 5.10% Subordinated Debentures Due 2059 UNDERWRITING AGREEMENT December 9, 2019 Morgan Stanley & Co. LLC 1585 Broadway New York, New York 10036 BofA Securities, Inc. One Bryant Park New York, New York 10036 UBS Securities LLC 1285 Avenue of the Americas New York, New York 10019 Wells Fargo Securities, LLC 550 South Tryon St

December 9, 2019 424B5

Subject to Completion Preliminary Prospectus Supplement dated December 9, 2019

424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-221559 The information contained in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell nor do they seek an offer to buy the debentures in any jurisdiction where the offer or sale is not permitted. Subje

December 9, 2019 FWP

W. R. Berkley Corporation 5.10% SUBORDINATED DEBENTURES DUE 2059 Issuer: W. R. Berkley Corporation Securities: 5.10% Subordinated Debentures due 2059 Security Type: Subordinated Debentures Anticipated Ratings*: Moody’s: Baa2 (stable) / S&P: BBB- (sta

FWP Issuer Free Writing Prospectus Filed Pursuant to Rule 433 Relating to Preliminary Prospectus Supplement dated December 9, 2019 to Prospectus dated November 14, 2017 Registration Statement No.

November 13, 2019 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

W. R. Berkley Corporation 1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 8, 2019 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State

November 13, 2019 EX-99.1

Vice President External Financial Communications (203) 629-3000 W. R. BERKLEY CORPORATION ELECTS JONATHAN TALISMAN AS A DIRECTOR

EX-99.1 2 wrb1182019talisman8-ke.htm EXHIBIT 99.1 NEWS RELEASE W. R. Berkley Corporation 475 Steamboat Road Greenwich, Connecticut 06830 (203) 629-3000 FOR IMMEDIATE RELEASE CONTACT: Karen A. Horvath Vice President External Financial Communications (203) 629-3000 W. R. BERKLEY CORPORATION ELECTS JONATHAN TALISMAN AS A DIRECTOR Greenwich, CT, November 8, 2019 - W. R. Berkley Corporation (NYSE: WRB)

November 7, 2019 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark one) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934For the Quarterly Period Ended September 30, 2019 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934.For the Transition Period from to . Commission File Number 1-15202 W. R. B

October 22, 2019 EX-99.1

Vice President - External Financial Communications (203) 629-3000 W. R. BERKLEY CORPORATION REPORTS THIRD QUARTER RESULTS Gross Premiums Written Up 8.6%; Return on Equity of 12.2% Greenwich, CT, October 22, 2019 - W. R. Berkley Corporation (NYSE: WRB

NEWS RELEASE W. R. Berkley Corporation 475 Steamboat Road Greenwich, Connecticut 06830 (203) 629-3000 FOR IMMEDIATE RELEASE CONTACT: Karen A. Horvath Vice President - External Financial Communications (203) 629-3000 W. R. BERKLEY CORPORATION REPORTS THIRD QUARTER RESULTS Gross Premiums Written Up 8.6%; Return on Equity of 12.2% Greenwich, CT, October 22, 2019 - W. R. Berkley Corporation (NYSE: WRB

October 22, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 22, 2019 Commission File Number 1-15202 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 22-1867895 (State or other jurisdiction of in

August 5, 2019 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark one) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934For the Quarterly Period Ended June 30, 2019 or ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934.For the Transition Period from to . Commission File Number 1-15202 W. R. BERKLE

July 23, 2019 EX-99.1

W. R. BERKLEY CORPORATION REPORTS SECOND QUARTER RESULTS Net Income Increased 20% to $217 Million; Return on Equity of 15.9% Greenwich, CT, July 23, 2019 -- W. R. Berkley Corporation (NYSE: WRB) today reported net income for the second quarter of 201

NEWS RELEASE W. R. Berkley Corporation 475 Steamboat Road Greenwich, Connecticut 06830 (203) 629-3000 FOR IMMEDIATE RELEASE CONTACT: Karen A. Horvath Vice President - External Financial Communications (203) 629-3000 W. R. BERKLEY CORPORATION REPORTS SECOND QUARTER RESULTS Net Income Increased 20% to $217 Million; Return on Equity of 15.9% Greenwich, CT, July 23, 2019 - W. R. Berkley Corporation (N

July 23, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 23, 2019 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-15202 22-1867895 (State or other jurisdiction (Commission (IRS Employer of in

July 1, 2019 11-K

WRB / Berkley (W.R.) Corp. 11-K - - 11-K 2018

United States Securities and Exchange Commission Washington, D.C. 20549 Form 11-K Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 (Mark One) þ Annual Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2018 o Transition Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934 For the transition

June 10, 2019 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 6, 2019 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-15202 22-1867895 (State or other jurisdiction (Commission (IRS Employer of inc

May 8, 2019 10-Q

Quarterly Report - 10-Q 1Q19

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark one) þ QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934For the Quarterly Period Ended March 31, 2019 or o Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934.For the Transition Period from to . Commission File Number 1-15202 W. R. BERKL

April 26, 2019 DEFA14A

WRB / Berkley (W.R.) Corp. DEFA14A DEFA14A

DEFA14A SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.

April 26, 2019 DEF 14A

Definitive Proxy Statement

Definitive Proxy Statement Table of Contents SCHEDULE 14A INFORMATION PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.

April 23, 2019 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 23, 2019 W. R. BERKLEY CORPORATION (Exact name of registrant as specified in its charter) Delaware 1-15202 22-1867895 (State or other jurisdiction (Commission (IRS Employer of i

April 23, 2019 EX-99.1

W. R. BERKLEY CORPORATION REPORTS FIRST QUARTER RESULTS Net Income Increased 9% to $181 Million; Return on Equity of 13.3% Greenwich, CT, April 23, 2019 -- W. R. Berkley Corporation (NYSE: WRB) today reported net income for the first quarter of 2019

NEWS RELEASE W. R. Berkley Corporation 475 Steamboat Road Greenwich, Connecticut 06830 (203) 629-3000 FOR IMMEDIATE RELEASE CONTACT: Karen A. Horvath Vice President - External Financial Communications (203) 629-3000 W. R. BERKLEY CORPORATION REPORTS FIRST QUARTER RESULTS Net Income Increased 9% to $181 Million; Return on Equity of 13.3% Greenwich, CT, April 23, 2019 - W. R. Berkley Corporation (NY

February 25, 2019 EX-99.1

W. R. BERKLEY CORPORATION ANNOUNCES 3-FOR-2 STOCK SPLIT AND DECLARES DIVIDEND

Exhibit 99.1 W. R. Berkley Corporation 475 Steamboat Road Greenwich, Connecticut 06830 (203) 629-3000 NEWS RELEASE FOR IMMEDIATE RELEASE CONTACT: Karen A. Horvath Vice President – External Financial Communications 203-629-3000 W. R. BERKLEY CORPORATION ANNOUNCES 3-FOR-2 STOCK SPLIT AND DECLARES DIVIDEND Greenwich, CT, February 21, 2019 - W. R. Berkley Corporation (NYSE: WRB) announced today that i

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