MARKEL CORP

Ticker: MKL CUSIP: 570535104 Class: COMMON STOCK

Leith Wheeler Investment Counsel Ltd.'s Holding History (CIK: 0001353651)

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

Q4 2017

Shares 247 Value ($000) $281 Avg Close $1093.18 Range $1054.20 - $1157.30

Q3 2017

Shares 294 Value ($000) $313 Avg Close $1034.02 Range $963.79 - $1086.68

Q2 2017

Shares 294 Value ($000) $287 Avg Close $970.65 Range $936.95 - $996.38

Q1 2017

Shares 294 Value ($000) $287 Avg Close $945.13 Range $887.40 - $992.00

Q3 2016

Shares 528 Value ($000) $643 Avg Close $933.01 Range $909.84 - $961.78

Q2 2016

Shares 528 Value ($000) $654 Avg Close $931.24 Range $880.01 - $989.18

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	247	$281	$1093.18	$1054.20 - $1157.30
Q3 2017	294	$313	$1034.02	$963.79 - $1086.68
Q2 2017	294	$287	$970.65	$936.95 - $996.38
Q1 2017	294	$287	$945.13	$887.40 - $992.00
Q3 2016	528	$643	$933.01	$909.84 - $961.78
Q2 2016	528	$654	$931.24	$880.01 - $989.18