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
976.08→954.36
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