The following tables set forth by level, within the fair value hierarchy, the Plan’s assets at fair value as of December 31, 2025 and 2024:


	Fair Value Measurements at December 31, 2025
			Quoted or		Significant
			published		other	Significant
	Total assets		prices in		observable	unobservable
	measured at		active markets		market data	market data
	fair value		(Level 1)		(Level 2)	(Level 3)
W. R. Berkley Corporation Common Stock Fund	$	298,705,590	$	298,705,590	—	—
Mutual Funds	390,070,293		390,070,293		—	—
Common Collective Trusts	1,744,402,311		1,744,402,311		—	—
Money Market Fund	42,062,308		42,062,308		—	—
Other Investments	154,500		154,500		—	—
Stable Value Fund	61,148,236		—		—	—
Total Investments	$	2,536,543,238	$	2,475,395,002	—	—


	Fair Value Measurements at December 31, 2024
			Quoted or		Significant
			published		other	Significant
	Total assets		prices in		observable	unobservable
	measured at		active markets		market data	market data
	fair value		(Level 1)		(Level 2)	(Level 3)
W. R. Berkley Corporation Common Stock Fund	$	254,610,103	$	254,610,103	—	—
Mutual Funds	365,920,928		365,920,928		—	—
Common Collective Trusts	1,478,011,673		1,478,011,673		—	—
Money Market Fund	29,422,425		29,422,425		—	—
Other Investments	156,331		156,331		—	—
Stable Value Fund	69,506,345		—		—	—
Total Investments	$	2,197,627,805	$	2,128,121,460	—	—

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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+ Details

- Definition

Tabular disclosure of fair value of investment held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), including, but not limited to, fair value measured at net asset value per share as practical expedient (NAV).

+ References

+ Details