MARKEL CORP

Ticker: MKL CUSIP: 570535104 Class: COMMON STOCK

Port Capital LLC's Holding History (CIK: 0001729212)

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

Q4 2017

Shares 4,683 Value ($000) $5,335 Avg Close $1093.18 Range $1054.20 - $1157.30

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	4,683	$5,335	$1093.18	$1054.20 - $1157.30