Costanzo Brian J.

CIK: 0001873434
Primary company: MARKEL GROUP INC. (MKL)

Costanzo Brian J. is a corporate insider at MARKEL GROUP INC. (MKL) filing SEC Form 4 transactions. 23 transactions. Source: SEC EDGAR.

Total Transactions
23
Total Buy Value
$0
Total Sell Value
$0
Net Activity
$0
Last Transaction
Oct 2026
Companies
1

Companies

Transaction History

Source: SEC EDGAR Form 4 insider transaction filings.

Type
J
Shares
2
Price
$1455.58
Value
$3K
Type
J
Shares
1
Price
$1626.96
Value
$2K
Type
Award
Shares
654
Price
-
Value
-
Type
Tax Payment
Shares
21
Price
$2060.83
Value
$43K
Type
J
Shares
1
Price
$1624.66
Value
$2K
Type
J
Shares
2
Price
$1580.87
Value
$3K
Type
J
Shares
2
Price
$1459.76
Value
$3K
Type
Award
Shares
379
Price
-
Value
-
Type
J
Shares
2
Price
$1336.81
Value
$3K
Type
Tax Payment
Shares
21
Price
$1759.04
Value
$37K
Type
J
Shares
1
Price
$1333.29
Value
$1K
Type
J
Shares
2
Price
$1282.46
Value
$3K
Type
J
Shares
1
Price
$1220.99
Value
$1K
Type
Award
Shares
108
Price
-
Value
-
Type
Award
Shares
94
Price
-
Value
-
Type
J
Shares
2
Price
$1206.92
Value
$2K
Type
Tax Payment
Shares
15
Price
$1401.29
Value
$21K
Type
J
Shares
2
Price
$1164.51
Value
$2K
Type
J
Shares
1
Price
$1101.99
Value
$1K
Type
Award
Shares
29
Price
$0.00
Value
$0