MARKEL CORP

Ticker: MKL CUSIP: 570535104 Class: COMMON STOCK

ARIEL INVESTMENTS, LLC's Holding History (CIK: 0000936753)

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

Q2 2013

Shares 16,893 Value ($000) $8,902 Avg Close $523.59 Range $501.76 - $546.94

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2013	16,893	$8,902	$523.59	$501.76 - $546.94