MARKEL CORP

Ticker: MKL CUSIP: 570535104 Class: COMMON STOCK

Stonebridge Capital Advisors LLC's Holding History (CIK: 0001600035)

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

Q2 2019

Shares 3 Value ($000) $3 Avg Close $1047.93 Range $970.42 - $1099.00

Q4 2017

Shares 205 Value ($000) $234 Avg Close $1093.18 Range $1054.20 - $1157.30

Q3 2017

Shares 205 Value ($000) $219 Avg Close $1034.02 Range $963.79 - $1086.68

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2019	3	$3	$1047.93	$970.42 - $1099.00
Q4 2017	205	$234	$1093.18	$1054.20 - $1157.30
Q3 2017	205	$219	$1034.02	$963.79 - $1086.68