COSTANZO BRIAN J.

PrivateCIK: 1873434
Location

GLEN ALLEN, VA

COSTANZO BRIAN J. (CAO and Controller) reported 1 transaction at MARKEL GROUP INC.

Review the transaction codes below to understand the nature of each event.

InsiderCOSTANZO BRIAN J.CIK 1873434
IssuerMARKEL GROUP INC.CIK 1096343
Officer· CAO and Controller
Since Aug 2021
-21.72
Net shares
Net seller
$44.8K
Total sold
0
Open market trades
0B · 0S
1
Total transactions
21.72 disposed
Non-Derivative Transactions1

Common Stock

Direct
F · Tax Withholding

Shares

21.72

Price / share

$2.06K

Trade value

$44.77K

% of position

2.2%
12/2/2025
976.08954.36
Total

Net shares

21.72

Net value

-$44.77K

Derivative Transactions0
No derivative transactions reported
Non-Derivative Holdings (Post-Transaction)1

Common Stock

Indirect
Shares owned223.84
Total
223.84 indirect223.84
Derivative Holdings (Post-Transaction)0
No derivative holdings reported
COSTANZO BRIAN J. — Insider Transaction (Form 4) Filed Dec 3, 2025 | Finecho