MARKEL CORP

Ticker: MKL CUSIP: 570535104 Class: COMMON STOCK

SUMMIT SECURITIES GROUP LLC's Holding History (CIK: 0001531593)

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

Q1 2017

Shares 250 Value ($000) $244 Avg Close $945.13 Range $887.40 - $992.00

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2017	250	$244	$945.13	$887.40 - $992.00