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, 2020

o Transition Report Pursuant to Section 15(d) of the Securities Exchange Act of 1934

For the transition period from to

Commission file number 001-15202

A. Full title of the plan and the address of the plan, if different from that of the issuer named below:

W. R. Berkley Corporation Profit Sharing Plan

B. Name of issuer of the securities held pursuant to the plan and the address of its principal executive office:

W. R. Berkley Corporation

475 Steamboat Road

Greenwich, CT 06830

W. R. BERKLEY CORPORATION PROFIT SHARING PLAN

December 31, 2020 and 2019

Index to Financial Statements and Supplemental Schedule

    Page(s)

Report of Independent Registered Public Accounting Firm    1

Financial Statements:

    Statements of Net Assets Available for Plan Benefits as of December 31, 2020 and 2019    2

    Statement of Changes in Net Assets Available for Plan Benefits for the year ended December 31, 2020    3

    Notes to Financial Statements    4 - 10

Supplemental Schedules*:

Supplemental Schedule H, line 4i — Schedule of Assets (Held at End of Year) as of December 31, 2020    11 - 12

Exhibit 23 - Consent of Independent Registered Public Accounting Firm    EX-23

* Schedules required by Form 5500 which are not applicable have not been included herein.

Report of Independent Registered Public Accounting Firm

To the Plan Participants and Plan Administrator

W. R. Berkley Corporation Profit Sharing Plan:

Opinion on the Financial Statements

We have audited the accompanying statements of net assets available for plan benefits of W. R. Berkley Corporation Profit Sharing Plan (the Plan) as of December 31, 2020 and 2019, the related statement of changes in net assets available for plan benefits for the year ended December 31, 2020, and the related notes (collectively, the financial statements). In our opinion, the financial statements present fairly, in all material respects, the net assets available for plan benefits of the Plan as of December 31, 2020 and 2019, and the changes in net assets available for plan benefits for the year ended December 31, 2020, in conformity with U.S. generally accepted accounting principles.

Basis for Opinion

These financial statements are the responsibility of the Plan’s management. Our responsibility is to express an opinion on these financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Plan in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

Accompanying Supplemental Information

The supplemental information in the accompanying Schedule H, line 4i - Schedule of Assets (Held at End of Year) as of December 31, 2020, has been subjected to audit procedures performed in conjunction with the audit of the Plan’s financial statements. The supplemental information is the responsibility of the Plan’s management. Our audit procedures included determining whether the supplemental information reconciles to the financial statements or the underlying accounting and other records, as applicable, and performing procedures to test the completeness and accuracy of the information presented in the supplemental information. In forming our opinion on the supplemental information, we evaluated whether the supplemental information, including its form and content, is presented in conformity with the Department of Labor’s Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974. In our opinion, the supplemental information is fairly stated, in all material respects, in relation to the financial statements as a whole.

/s/ KPMG LLP

We have not been able to determine the specific year that we began serving as the Plan’s auditor, however we are aware that we have served as the Plan’s auditor since at least 1993.

Stamford, Connecticut

June 29, 2021

1

W. R. BERKLEY CORPORATION PROFIT SHARING PLAN

Statements of Net Assets Available for Plan Benefits

December 31, 2020 and 2019

	2020		2019
Assets:
Cash	$	1,794,577	$	2,000,914
Investments, at fair value (note 6):
W. R. Berkley Corporation Common Stock Fund	140,669,988		156,636,364
Mutual Funds	344,249,257		300,032,826
Common Collective Trusts	979,371,287		784,735,181
Money Market Funds	92,489,287		70,107,056
Other Investments	156,256		219,244
Total Investments	1,556,936,075		1,311,730,671
Participant loans receivable	14,957,470		16,832,548
Contributions receivable employer	46,440,307		44,329,141
Total Assets	1,620,128,429		1,374,893,274
Liabilities:
Payable for securities purchased	105,303		91,217
Payable for trustee, administrative fees and other	9		4
Total Liabilities	105,312		91,221
Net assets available for plan benefits	$	1,620,023,117	$	1,374,802,053

See accompanying notes to financial statements.

2

W. R. BERKLEY CORPORATION PROFIT SHARING PLAN

Statement of Changes in Net Assets Available for Plan Benefits

Year ended December 31, 2020

Additions to net assets attributed to:
Investment income:
Interest and dividends	$	17,852,696
Net appreciation in fair value of investments	228,377,560
Net investment income	246,230,256
Interest on participant loans	624,378
Contributions:
Employer	46,440,307
Participants	45,344,132
Rollovers	13,078,378
Total contributions	104,862,817
Total additions	351,717,451
Deductions from net assets attributed to:
Benefits paid to participants	106,262,210
Other expense, net	234,177
Total deductions	106,496,387
Net increase in net assets available for plan benefits	245,221,064
Net assets available for plan benefits at:
Beginning of year	1,374,802,053
End of year	$	1,620,023,117

See accompanying notes to financial statements.

3

W. R. BERKLEY CORPORATION PROFIT SHARING PLAN

Notes to Financial Statements

December 31, 2020 and 2019

(1)     Plan Description

The following brief description of the W. R. Berkley Corporation (the “Company”) Profit Sharing Plan (the “Plan”) is provided for general information purposes only. This brief description is qualified in its entirety by the text of the Plan, and Participants should refer to the Plan for a more complete description of the Plan. Capitalized terms used herein shall have the respective meanings as set forth in the Plan.

(a)General

The Plan is a defined contribution plan and was established for the benefit of eligible Employees of the Company and its participating subsidiaries. Employees of the Company and its participating subsidiaries become eligible to participate in the Plan for purposes of making Tax-Deferred Contributions, Roth Contributions, Catch-Up Contributions and Rollover Contribution/Transfer Amounts on the date they were first credited with an Hour-of-Service. The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”). The Plan allows for mandatory distributions to terminated Participants whose vested Account balance is less than $1,000.

Fidelity Management Trust Company (“Fidelity”) is the Trustee and Fidelity or its affiliates act as the custodian and record keeper for the Plan. The Company has a Profit Sharing Plan Finance Committee (“Finance Committee”) to select the investment alternatives provided by the Plan. The Company has a Profit Sharing Plan Administrative Committee (“Administrative Committee”) to act as the administrator of the Plan (“Plan Administrator”).

(b)    Contributions

Employer Contributions

Each Plan Year, the Company makes an Employer Profit Sharing Contribution to the Plan. The Company’s current minimum Employer Profit Sharing Contribution for each Plan Year is 5% of a Participant’s Earnings for the period of the calendar year that the Employee was a Participant, up to the maximum amount permitted for one year by the Internal Revenue Code of 1986, as amended (“IRC”). The Company’s Employer Profit Sharing Contribution is allocated as follows: 60% to the Participant’s Company Profit Sharing Account, subject to the Plan’s vesting schedule; and 40% to the Participant’s Tax-Deferred Contribution Account, which is 100% vested.

Employer Profit Sharing Contributions are determined separately for each Participating Employer and are allocated as of the last day of the calendar year based on the Participant’s Earnings. Eligible Earnings accrue on the earlier of the first day of the Calendar Quarter following the first full Calendar Quarter in which the Participant completes 250 Hours-of-Service, or on the first day of the Calendar Quarter following the first employment year (the 12 consecutive month period measured from the date of the first Hour-of-Service) in which the Participant completes at least 1,000 Hours-of-Service provided they are an employee on the first day of such Calendar Quarter. If the Participant’s employment during a single Plan Year was divided between two or more Participating Employers, and the Participant is eligible for an Employer Profit Sharing Contribution for the Plan Year, each Participating Employer for which the Participant worked will make the appropriate contribution to the Participant’s Account based on their period of service with, and Earnings from, the Participating Employer.

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W. R. BERKLEY CORPORATION PROFIT SHARING PLAN

Notes to Financial Statements

December 31, 2020 and 2019

Participant Contributions

Tax-Deferred Contributions

A Participant in the Plan may elect to have voluntary Tax-Deferred Contributions deducted from their pay, for each pay period, in any amount from 1% to 50% of their eligible Earnings. A Participant may also elect to have an amount in excess of 50% of their eligible Earnings for a pay period deducted provided that their aggregate Tax-Deferred Contributions for the calendar year do not exceed 50% of the Participant’s eligible Earnings to date up to a statutory limit ($19,500 for 2020). A Participant may change or suspend their Tax-Deferred Contributions election. Any Employee who fails to make an election with respect to the Tax-Deferred Contributions and/or Roth Contributions shall be deemed to have elected to make Tax-Deferred Contributions to the Plan at an initial rate equal to 1% of Earnings commencing the first payday on or after the 90th day following the Employee’s employment commencement date. The Employee is also automatically enrolled in the Plan's Annual Increase Program, that increases the contribution rate 1% annually as determined by the Employee’s date of hire or adjusted date of hire, whichever is the latest, until capped at 3%.

    After-Tax Roth Contributions

A Participant may designate part or all of their Plan contributions as either Tax-Deferred Contributions or as after-tax Roth Contributions provided that their aggregate combined Tax-Deferred Contributions and after-tax Roth Contributions for the calendar year do not exceed 50% of the Participant’s Earnings for the Plan year up to a statutory limit ($19,500 for 2020). A Participant may change or suspend their after-tax Roth Contribution election. An in-plan Roth conversion feature is available subject to terms and conditions established by the Plan’s Administrative Committee. Participants may be eligible to convert certain accounts that are eligible for in-service withdrawal (other than hardship withdrawal) to a designated Roth account within the Plan.

Rollover Contributions/Transfer Amounts

A Participant who receives a qualifying rollover distribution from an eligible retirement plan may make a Rollover Contribution into the Plan even though the Participant has not otherwise become eligible to participate in the Plan. Amounts that are attributable to after-tax Roth Contributions may be rolled into the Plan only from another employer’s eligible retirement plan; they may not be rolled into the Plan from a Roth IRA, even if the only monies held in the Roth IRA were previously distributed from an eligible retirement plan.

In addition, amounts attributable to after-tax Roth Contributions must be rolled over to the Plan by means of a Rollover Contribution.

Catch-Up Contributions

In addition to the Tax-Deferred Contributions and/or after-tax Roth Contributions described above, Plan Participants who will be at least 50 years old by the end of the calendar year and who have contributed the maximum amount of Tax-Deferred Contributions and/or after-tax Roth Contributions for the year may make additional Catch-up Contributions to the Plan. For 2020, Tax-Deferred and after-tax Roth Catch-up Contributions had a combined limit of $6,500.

(c)    Participants’ Accounts

Each Participant’s Account is credited with the Participant’s contributions, the appropriate amount of the Company’s Employer Profit Sharing Contributions and an allocation of investment fund earnings or losses in which the Participant has directed his or her contribution. The benefit to which a Participant is entitled is the benefit that can be provided from the Participant’s vested Account. The Account of each Participant is valued on a daily basis.

(d)    Vesting

Participants are fully vested in their Tax-Deferred and after-tax Roth Contributions, Roll-Over Contributions, Catch-up Contributions, the Employer Profit Sharing Contribution to their Tax-Deferred Contribution Account, and earnings thereon. Effective January 1, 2007, the vesting percent in the portion of the Employer Profit Sharing Contribution allocated to the Participant’s Company Profit Sharing Account occurs at the rate of 20% per year beginning after two years of continuous employment.

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W. R. BERKLEY CORPORATION PROFIT SHARING PLAN

Notes to Financial Statements

December 31, 2020 and 2019

(e)    Payments of Benefits

On Termination of Employment, Retirement or death, a Participant or Participant’s beneficiary may elect to receive the payment of benefits in a lump sum or in annual installments not to exceed 15 years. Distributions to terminated Participants are based upon the closing price of the funds on the date the Participant requests the distribution from Fidelity. Withdrawals to active Participants are based on the date the withdrawals have been approved by the Plan Administrator and are processed by Fidelity.

Hardship withdrawals are allowed under certain circumstances as defined in the Plan. Participants are suspended from making contributions for six months after taking a hardship withdrawal from the Plan.

On March 27, 2020, Congress passed the Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”), which included several relief provisions available to tax qualified retirement plans and their participants. The provisions of the CARES Act may be effective and operationalized immediately, prior to amending the Plan document. The Plan has adopted the provision that allows eligible plan participants to request penalty-free distributions of up to $100,000 before December 31, 2020 for qualifying reasons associated with the COVID-19 pandemic.

(f) Forfeitures

Amounts forfeited by non-vested Participants who terminated employment during the year were $1,702,528 and $1,719,479 for the years ended December 31, 2020 and 2019, respectively. The Company allocates these forfeitures in the subsequent year to the Accounts of the remaining active Participants as of the last day of the Plan year. The forfeiture balance totaled $1,823,697 and $1,849,454 as of December 31, 2020 and 2019, respectively.

(g)    Participant Loans

The Plan allows Participants to borrow from their Account. Participants may borrow up to 50% of their vested Account balance; the minimum amount of any loan from the Plan is $1,000, and the maximum amount is the lesser of $50,000 or 50% of the value of the Participant’s vested Account. A Participant may request a loan for any reason and the loan may be repaid over 60 months. For the purchase of a primary residence, however, the loan may be repaid over 25 years. At December 31, 2020 and 2019, there were 1,634 and 1,781 individual loans outstanding, respectively, bearing interest at rates ranging from 3.25% to 9.5% per annum with maturities ranging from 1 to 25 years for both years.

The interest rate charged on the loan and repaid to the Participant’s Account is set to the prime rate as of the first day of the quarter in which the loan originated and is fixed for the duration of the loan. A Participant may have up to two loans outstanding at a time. Repayment of the loan to the Participant’s Account is made through payroll deductions or the loan may be paid in full by a lump-sum payment. A partial repayment is not permitted other than pursuant to the aforementioned payroll deductions or as set forth in the following sentence. A Participant with an outstanding loan balance who separates from service with the Company has the option of repaying the loan in a lump sum or continuing to pay the monthly loan payment amount directly to Fidelity.

(h)    Investments

Participants are responsible for directing the investment of their respective Accounts. Contributions for which the Participant does not provide investment direction are invested in the Plan’s designated default option (“Plan Designated Fund”). The Fidelity Institutional Asset Management (“FIAM”) Target Date Commingled Pool Class R Fund with a target Retirement Date closest to the year the Participant may retire based on their present age and a retirement age of 65, is the Plan Designated Fund. Investment changes requested by Participants are implemented as soon as administratively practical in accordance with the Plan document.

(i)    Plan Expenses

Participants are charged an annual recordkeeping maintenance fee in quarterly installments which is deducted from each Participant’s Account after the end of each quarter. These charges are included in the “Other expense, net” account.

(j)    Revenue Credits

Revenue credits are allocated into eligible Participant Accounts pro rata into the specific fund that was used to determine the basis, and is allocated pro rata across all sources with that fund balance. These credits are included in the “Other expense, net” account.

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W. R. BERKLEY CORPORATION PROFIT SHARING PLAN

Notes to Financial Statements

December 31, 2020 and 2019

(2)     Summary of Significant Accounting Policies

The following are the more significant accounting policies followed by the Plan:

(a)Basis of Accounting and Use of Estimates

The financial statements of the Plan are prepared under the accrual method of accounting. The preparation of financial statements in conformity with U.S. generally accepted accounting principles (“GAAP”) requires the Plan to make estimates and assumptions that affect the reported amounts of assets and liabilities and changes therein, as well as disclosure of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates and assumptions.

(b)Investment Valuation and Income Recognition

The Plan’s investments are stated at fair value as further described in note 6.

Purchases and sales of investments are recorded on a trade date basis. Investment purchases that have not been settled as of year-end are recorded as a liability. Realized gains and losses are based on an average cost basis and are included in net appreciation (depreciation) in fair value of investments. Interest income is recorded on the accrual basis. Dividends are recorded on the ex-dividend date.

Investment management fees, including brokerage fees and commissions on the purchase and sale of securities and other related portfolio management expenses, are paid from assets of, and applied against the investment performance of, the respective investment funds.

Each Participant is entitled to exercise voting rights attributable to the shares of the W. R. Berkley Corporation Common Stock Fund (“Company Common Stock Fund”) allocated to his or her Account and is notified by the Trustee prior to the time that such rights are to be exercised. The Trustee is permitted to vote any allocated shares for which instructions have not been given by a Participant in the same proportion as those allocated shares for which instructions were given by Participants.

(c) Cash and Cash Equivalents

The Company considers all highly liquid investments with a maturity of three months or less when purchased to be cash equivalents. Cash and cash equivalents include $1,794,577 and $2,000,914 of money market mutual funds with an initial term of less than three months at December 31, 2020 and 2019.    

(d)Payment of Benefits

Benefit payments are recorded when paid.

(e)Reclassification

Certain amounts reported in the prior year in the financial statements have been reclassified to conform to the current year’s presentation. The 2019 Statements of Net Assets Available for Plan Benefits and footnote 6, Fair Value Measurement of Investments, were revised to reflect $2,000,914 of cash that was previously presented in the W. R. Berkley Corporation Common Stock Fund.

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W. R. BERKLEY CORPORATION PROFIT SHARING PLAN

Notes to Financial Statements

December 31, 2020 and 2019

(3)     Risks and Uncertainties

The Plan offers a number of investment options including the Company Common Stock Fund and a variety of pooled investment funds, which consist of registered investment companies and common collective trusts. The investment funds are comprised of U.S. equities, international equities, and fixed income securities. Investment securities, in general, are exposed to various risks, such as interest rate, credit, and overall market volatility risk. Due to the level of risk associated with certain investment securities, it is reasonable to expect that changes in the values of investment securities will occur in the near term and that such changes could materially affect Participant Account balances and the Statement of Changes in Net Assets Available for Plan Benefits.

The Plan’s exposure to a concentration of credit risk is limited by the diversification of investments across all Participant-directed fund elections. Additionally, the investments within each Participant-directed fund election are further diversified into varied financial instruments, with the exception of the Company Common Stock Fund, which principally invests in a security of a single issuer. Approximately 9% and 12% of the Plan’s net assets were invested in the Company Common Stock Fund as of December 31, 2020 and 2019, respectively.

The Plan investments include mutual funds and common collective trusts that may directly or indirectly invest in securities with contractual cash flows, such as asset backed securities, collateralized mortgage obligations and commercial mortgage backed securities, including securities backed by subprime mortgage loans. The value, liquidity and related income of these securities are sensitive to changes in economic conditions, including real estate value, delinquencies or defaults, or both, and may be adversely affected by shifts in the market’s perception of the issuers and changes in interest rates.

(4)     Plan Termination

Although it has not expressed any intent to do so, the Company has the right under the Plan to discontinue its contributions at any time and to terminate the Plan subject to the provisions of ERISA.

In the event of termination of the Plan, all amounts credited to the Participants will become fully vested, and all assets remaining after payments of any expenses properly chargeable against the Plan will be distributed to the Participants pro rata in accordance with the value of each Participant’s Account on the date of such termination.

(5)     Tax Status

The Internal Revenue Service (“IRS”) has determined and informed the Company by a letter dated October 31, 2017 that the Plan and related trust are designed in accordance with applicable sections of the IRC. Although the Plan has been amended since receiving the determination letter, the Plan Administrator believes that the Plan is currently designed, and being operated, in compliance with the applicable requirements of the IRC.

GAAP requires the Plan’s management to evaluate tax positions taken by the Plan and recognize a tax liability (or asset) if the Plan has taken an uncertain position that more likely than not would not be sustained upon examination by the IRS.

The Plan Administrator has analyzed the tax positions taken by the Plan, and has concluded that as of December 31, 2020, there are no uncertain positions taken or expected to be taken that would require recognition of a liability (or asset) or disclosure in the financial statements.

The Plan is subject to routine audits by various taxing jurisdictions. There are currently no audits for any periods in progress.

(6)     Fair Value Measurement of Investments

Fair value is defined as “the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date”. The Plan utilizes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value into three broad levels, as follows:

Level 1 — Quoted prices (unadjusted) in active markets for identical assets or liabilities.

Level 2 — Quoted prices for similar assets or valuations based on inputs that are observable.

Level 3 — Estimates of fair value based on internal pricing methodologies using unobservable inputs. Unobservable inputs are only used to measure fair value to the extent that observable inputs are not available.

The asset’s or liability’s fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement.

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W. R. BERKLEY CORPORATION PROFIT SHARING PLAN

Notes to Financial Statements

December 31, 2020 and 2019

Fair value estimates are made at a specific point in time, based on available market information and other observable inputs. In some cases, the fair value estimates cannot be substantiated by comparison to independent markets. In addition, the disclosed fair value may not be realized in the ultimate settlement of the financial asset as these values do not represent any premium or discount that could result from selling an entire holding of a particular financial asset at one time. Other expenses that would be incurred in an actual sale or settlement are not included in the amounts disclosed.

The following is a description of the valuation methodologies used for assets measured at fair value.

Money Market Funds and Mutual Funds - Valued at the closing price reported on the active market on which the individual securities are traded.

W. R. Berkley Corporation Common Stock Fund - Consists of W. R. Berkley Corporation common stock. The stock is valued at the closing price reported on the active market on which the individual securities are traded.

Common Collective Trusts - Valued at the Net Asset Value based on the collective trust’s underlying investments as determined by the fund’s issuer. Redemptions from these collective trust funds generally can be made daily and are determined to have a readily determinable fair value.

Other Investments - Consists of short term investments and varies with the amount of cash awaiting investment and with participant activity in the W. R. Berkley Corporation Common Stock Fund (contributions, redemptions, exchanges, withdrawals, etc.)

The methods described above may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, while the Plan believes its valuation methods are appropriate and consistent with those of other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date. There were no changes to the valuation methodologies in 2020 or 2019.

The following tables set forth by level, within the fair value hierarchy, the Plan’s assets at fair value as of December 31, 2020 and 2019:

	Fair Value Measurements at December 31, 2020
			Quoted or published prices in active markets		Significant
					other	Significant
	Total assets				observable	unobservable
	measured at				market data	market data
	fair value		(Level 1)		(Level 2)	(Level 3)
W. R. Berkley Corporation Common Stock Fund	$	140,669,988	$	140,669,988	—	—
Mutual Funds	344,249,257		344,249,257		—	—
Common Collective Trusts	979,371,287		979,371,287		—	—
Money Market funds	92,489,287		92,489,287		—	—
Other Investments	156,256		156,256		—	—
Total Investments	$	1,556,936,075	$	1,556,936,075	—	—

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W. R. BERKLEY CORPORATION PROFIT SHARING PLAN

Notes to Financial Statements

December 31, 2020 and 2019

	Fair Value Measurements at December 31, 2019
			Quoted or published prices in active markets		Significant
					other	Significant
	Total assets				observable	unobservable
	measured at				market data	market data
	fair value		(Level 1)		(Level 2)	(Level 3)
W. R. Berkley Corporation Common Stock Fund	$	156,636,364	$	156,636,364	—	—
Mutual Funds	300,032,826		300,032,826		—	—
Common Collective Trusts	784,735,181		784,735,181		—	—
Money Market funds	70,107,056		70,107,056		—	—
Other Investments	219,244		219,244		—	—
Total Investments	$	1,311,730,671	$	1,311,730,671	—	—

(7)Related Party Transactions

Certain Plan investments are managed or sponsored by Fidelity Investments, an affiliate of Fidelity who is the Trustee as defined by the Plan and accordingly, these transactions with Fidelity Investments qualify as party-in-interest transactions. Investments in the Company Common Stock Fund also qualify as party-in-interest transactions.

(8)Subsequent Events

Events that have occurred subsequent to December 31, 2020 have been evaluated through the date these financial statements were issued. There were no events that occurred during such period that would require recognition or disclosure in the financial statements as of, or for, the year ended December 31, 2020.

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W. R. BERKLEY CORPORATION PROFIT SHARING PLAN

Schedule H, line 4i – Schedule of Assets (Held at End of Year)

December 31, 2020

		Current value at
		December 31, 2020
Identity of issuer	Description and number of shares
* W. R. Berkley Corporation Common Stock Fund	Common Stock Fund: 2,117,886 shares	$	140,669,988
Total Common Stock Fund		140,669,988
* Fidelity® Government Income Fund	Mutual Funds: 2,049,119 shares	22,396,874
* Fidelity® Small Cap Discovery Fund	Mutual Funds: 1,418,981 shares	34,140,695
* Fidelity® Puritan® Fund - Class K	Mutual Funds: 2,093,727 shares	54,436,899
Invesco Small Cap Growth Fund Class R6	Mutual Funds: 647,829 shares	37,198,313
JPMorgan Mid Cap Value Fund Class L	Mutual Funds: 399,833 shares	14,769,828
Metropolitan West Total Return Bond Fund Plan Class	Mutual Funds: 5,190,145 shares	54,444,617
MFS International Diversification Fund Class R6	Mutual Funds: 1,794,037 shares	42,895,424
Neuberger Berman Mid Cap Growth Fund Class R6	Mutual Funds: 777,263 shares	15,654,082
Vanguard Inflation-Protected Securities Fund Institutional Shares	Mutual Funds: 1,451,941 shares	16,755,400
Vanguard Equity-Income Fund Admiral Shares	Mutual Funds: 649,907 shares	51,557,125
Total Mutual Funds		344,249,257

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W. R. BERKLEY CORPORATION PROFIT SHARING PLAN

Schedule H, Line 4i – Schedule of Assets (Held at End of Year)

December 31, 2020

		Current value at
		December 31,
Identity of issuer	Description and number of shares	2020
* FIAM Target Date 2010 Commingled Pool Class R	Collective Trusts: 195,664 shares	3,893,713
* FIAM Target Date 2015 Commingled Pool Class R	Collective Trusts: 518,873 shares	10,745,862
* FIAM Target Date 2020 Commingled Pool Class R	Collective Trusts: 2,078,473 shares	43,315,380
* FIAM Target Date 2025 Commingled Pool Class R	Collective Trusts: 3,714,597 shares	81,981,150
* FIAM Target Date 2030 Commingled Pool Class R	Collective Trusts: 3,907,690 shares	87,493,189
* FIAM Target Date 2035 Commingled Pool Class R	Collective Trusts: 2,623,618shares	62,547,059
* FIAM Target Date 2040 Commingled Pool Class R	Collective Trusts: 2,018,830 shares	48,108,709
* FIAM Target Date 2045 Commingled Pool Class R	Collective Trusts: 1,694,295 shares	40,578,356
* FIAM Target Date 2050 Commingled Pool Class R	Collective Trusts: 1,343,309 shares	31,688,651
* FIAM Target Date 2055 Commingled Pool Class R	Collective Trusts: 670,246 shares	16,957,225
* FIAM Target Date 2060 Commingled Pool Class R	Collective Trusts: 327,557 shares	5,555,366
* FIAM Target Date 2065 Commingled Pool Class R	Collective Trusts: 2,352 shares	30,124
* FIAM Target Date Income Commingled Pool Class R	Collective Trusts: 45,028 shares	737,560
* Fidelity® Contrafund® Commingled Pool	Collective Trusts: 7,290,128 shares	196,541,844
* Fidelity® Growth Company Commingled Pool	Collective Trusts: 4,368,387 shares	186,923,269
State Street Global All Cap Equity Ex-U.S. Index Securities Lending Series Fund Class II	Collective Trusts: 1,241,342 shares	15,653,324
State Street Russell Small/Mid Cap® Index Securities Lending Series Fund Class II	Collective Trusts: 1,444,891 shares	21,605,455
State Street S&P 500® Index Securities Lending Series Fund Class II	CoIlective Trusts: 6,547,225 shares	101,887,910
State Street U.S. Bond Index Securities Lending Series Fund Class XIV	ColIective Trusts: 1,966,092 shares	23,127,141
Total Common Collective Trusts		979,371,287
Vanguard Federal Money Market Fund Investor Shares	Mutual Funds: 92,489,287 shares	92,489,287
Total Money Market Funds		92,489,287
* Participant loans	1,634 Participant loans (interest rates range from 3.25% to 9.50% per annum with maturities ranging from 1 to 25 years)	14,957,470
Other Investments	Consists of short term investments	156,256
Total investments and participant loans		$	1,571,893,545
* Party-in-interest as defined by ERISA

See accompanying report of independent registered public accounting firm.

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W. R. BERKLEY CORPORATION PROFIT SHARING PLAN

Signatures

Pursuant to the requirements of the Securities Exchange Act of 1934, the Finance Committee of W. R. Berkley Corporation Profit Sharing Plan has duly caused this annual report to be signed on its behalf by the undersigned thereunto duly authorized.

W. R. BERKLEY CORPORATION
PROFIT SHARING PLAN
	/s/  Richard M. Baio
By	Richard M. Baio
	Member, Profit Sharing Plan
	Administrative Committee

    June 29, 2021

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Exhibit Index

Exhibit 23            Consent of Independent Registered Public Accounting Firm

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