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WRB compared with BRK-B: revenue, margins and what each company keeps, and the suppliers and customers both name
WRB
W. R. Berkley Corp
Change
Mkt cap
Revenue
Revenue
BRK-B
Berkshire Hathaway Inc
Change
Mkt cap
Revenue
Revenue
vs
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WRB
W. R. Berkley Corp
vs
BRK-B
Berkshire Hathaway Inc
Price
Mkt cap
Revenue
Revenue
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Supply chain
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Supply-chain overlap
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Supply-chain overlap
direct ties · both sides
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direct ties · both sides
Only WRB
1
RYAN
Ryan Specialty
customer
Shared
0
No disclosed counterparties: BRK-B.
Only BRK-B
0
None
Role chip = supplier or customer
Source: SEC EDGAR
WRB
W. R. Berkley Corp
Change
75.44
▼
−2.00%
· post 74.59
Mkt cap
$27.9B
Revenue
$3.7B
Q3 FY26
Revenue
$14.7B
FY25
BRK-B
Berkshire Hathaway Inc
Change
571.69
▼
−0.11%
· post 572.00
Closed
Nov 6 '26
Mkt cap
$1.2T
Revenue
$102B
Q2 FY26
Revenue
$371B
FY25
vs
Compare
Closed
Nov 6 '26
WRB
W. R. Berkley Corp
vs
BRK-B
Berkshire Hathaway Inc
75.44
▼
−2.00%
post 74.59
Price
571.69
▼
−0.11%
post 572.00
$27.9B
Mkt cap
$1.2T
Q3 FY26
$3.7B
Revenue
$102B
Q2 FY26
FY25
$14.7B
Revenue
$371B
FY25
Change
Change
WRB
75.44
▼
−2.00%
vs
BRK-B
571.69
▼
−0.11%
Closed
Nov 6 '26