MARKEL CORP

Ticker: MKL CUSIP: 570535104 Class: COMMON STOCK

FRONTIER CAPITAL MANAGEMENT CO LLC's Holding History (CIK: 0000351173)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 5,568 Value ($000) $11,969 Avg Close $2025.92 Range $1812.24 - $2207.59

Q3 2025

Shares 5,607 Value ($000) $10,718 Avg Close $1960.42 Range $1889.91 - $2075.92

Q2 2025

Shares 5,774 Value ($000) $11,533 Avg Close $1875.20 Range $1621.89 - $2004.24

Q1 2025

Shares 5,792 Value ($000) $10,829 Avg Close $1839.75 Range $1641.51 - $2063.68

Q4 2024

Shares 5,936 Value ($000) $10,247 Avg Close $1659.34 Range $1521.25 - $1809.11

Q3 2024

Shares 5,381 Value ($000) $8,441 Avg Close $1565.15 Range $1491.03 - $1660.74

Q2 2024

Shares 5,955 Value ($000) $9,384 Avg Close $1552.86 Range $1417.65 - $1670.24

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	5,568	$11,969	$2025.92	$1812.24 - $2207.59
Q3 2025	5,607	$10,718	$1960.42	$1889.91 - $2075.92
Q2 2025	5,774	$11,533	$1875.20	$1621.89 - $2004.24
Q1 2025	5,792	$10,829	$1839.75	$1641.51 - $2063.68
Q4 2024	5,936	$10,247	$1659.34	$1521.25 - $1809.11
Q3 2024	5,381	$8,441	$1565.15	$1491.03 - $1660.74
Q2 2024	5,955	$9,384	$1552.86	$1417.65 - $1670.24