MARKEL CORP

Ticker: MKL CUSIP: 570535104 Class: COMMON STOCK

Aperio Group, LLC's Holding History (CIK: 0001364615)

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

Q4 2020

Shares 3,847 Value ($000) $3,975 Avg Close $996.82 Range $913.04 - $1073.43

Q3 2020

Shares 5,198 Value ($000) $5,061 Avg Close $1015.77 Range $881.00 - $1124.00

Q2 2020

Shares 4,071 Value ($000) $3,758 Avg Close $908.95 Range $761.06 - $1049.56

Q1 2020

Shares 5,491 Value ($000) $5,096 Avg Close $1143.50 Range $710.52 - $1347.64

Q4 2019

Shares 5,197 Value ($000) $5,941 Avg Close $1138.97 Range $1100.00 - $1216.47

Q3 2019

Shares 5,007 Value ($000) $5,917 Avg Close $1136.16 Range $1065.01 - $1204.45

Q2 2019

Shares 5,063 Value ($000) $5,516 Avg Close $1047.93 Range $970.42 - $1099.00

Q1 2019

Shares 4,872 Value ($000) $4,854 Avg Close $1015.52 Range $950.16 - $1081.00

Q4 2018

Shares 5,737 Value ($000) $5,955 Avg Close $1093.58 Range $954.39 - $1203.43

Q3 2018

Shares 6,775 Value ($000) $8,052 Avg Close $1176.81 Range $1078.02 - $1228.32

Q2 2018

Shares 6,434 Value ($000) $6,977 Avg Close $1129.38 Range $1083.92 - $1180.00

Q1 2018

Shares 6,281 Value ($000) $7,350 Avg Close $1125.56 Range $1049.95 - $1194.98

Q4 2017

Shares 5,934 Value ($000) $6,760 Avg Close $1093.18 Range $1054.20 - $1157.30

Q3 2017

Shares 5,705 Value ($000) $6,093 Avg Close $1034.02 Range $963.79 - $1086.68

Q2 2017

Shares 5,468 Value ($000) $5,336 Avg Close $970.65 Range $936.95 - $996.38

Q1 2017

Shares 5,133 Value ($000) $5,009 Avg Close $945.13 Range $887.40 - $992.00

Q4 2016

Shares 5,480 Value ($000) $4,957 Avg Close $891.63 Range $811.05 - $931.94

Q3 2016

Shares 5,010 Value ($000) $4,653 Avg Close $933.01 Range $909.84 - $961.78

Q2 2016

Shares 4,343 Value ($000) $4,138 Avg Close $931.24 Range $880.01 - $989.18

Q1 2016

Shares 4,168 Value ($000) $3,716 Avg Close $859.54 Range $805.03 - $895.03

Q4 2015

Shares 3,359 Value ($000) $2,967 Avg Close $870.15 Range $791.97 - $937.91

Q3 2015

Shares 3,456 Value ($000) $2,771 Avg Close $846.01 Range $775.00 - $898.08

Q2 2015

Shares 3,378 Value ($000) $2,705 Avg Close $777.66 Range $736.96 - $821.00

Q1 2015

Shares 2,985 Value ($000) $2,295 Avg Close $722.91 Range $660.05 - $783.50

Q4 2014

Shares 2,828 Value ($000) $1,931 Avg Close $678.17 Range $632.65 - $707.36

Q3 2014

Shares 2,968 Value ($000) $1,888 Avg Close $645.09 Range $623.90 - $666.00

Q2 2014

Shares 2,647 Value ($000) $1,735 Avg Close $630.07 Range $593.76 - $655.75

Q1 2014

Shares 2,531 Value ($000) $1,509 Avg Close $569.59 Range $527.17 - $596.87

Q4 2013

Shares 2,517 Value ($000) $1,461 Avg Close $542.65 Range $511.06 - $582.59

Q3 2013

Shares 1,428 Value ($000) $739 Avg Close $525.40 Range $506.64 - $549.09

Q2 2013

Shares 860 Value ($000) $453 Avg Close $523.59 Range $501.76 - $546.94

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2020	3,847	$3,975	$996.82	$913.04 - $1073.43
Q3 2020	5,198	$5,061	$1015.77	$881.00 - $1124.00
Q2 2020	4,071	$3,758	$908.95	$761.06 - $1049.56
Q1 2020	5,491	$5,096	$1143.50	$710.52 - $1347.64
Q4 2019	5,197	$5,941	$1138.97	$1100.00 - $1216.47
Q3 2019	5,007	$5,917	$1136.16	$1065.01 - $1204.45
Q2 2019	5,063	$5,516	$1047.93	$970.42 - $1099.00
Q1 2019	4,872	$4,854	$1015.52	$950.16 - $1081.00
Q4 2018	5,737	$5,955	$1093.58	$954.39 - $1203.43
Q3 2018	6,775	$8,052	$1176.81	$1078.02 - $1228.32
Q2 2018	6,434	$6,977	$1129.38	$1083.92 - $1180.00
Q1 2018	6,281	$7,350	$1125.56	$1049.95 - $1194.98
Q4 2017	5,934	$6,760	$1093.18	$1054.20 - $1157.30
Q3 2017	5,705	$6,093	$1034.02	$963.79 - $1086.68
Q2 2017	5,468	$5,336	$970.65	$936.95 - $996.38
Q1 2017	5,133	$5,009	$945.13	$887.40 - $992.00
Q4 2016	5,480	$4,957	$891.63	$811.05 - $931.94
Q3 2016	5,010	$4,653	$933.01	$909.84 - $961.78
Q2 2016	4,343	$4,138	$931.24	$880.01 - $989.18
Q1 2016	4,168	$3,716	$859.54	$805.03 - $895.03
Q4 2015	3,359	$2,967	$870.15	$791.97 - $937.91
Q3 2015	3,456	$2,771	$846.01	$775.00 - $898.08
Q2 2015	3,378	$2,705	$777.66	$736.96 - $821.00
Q1 2015	2,985	$2,295	$722.91	$660.05 - $783.50
Q4 2014	2,828	$1,931	$678.17	$632.65 - $707.36
Q3 2014	2,968	$1,888	$645.09	$623.90 - $666.00
Q2 2014	2,647	$1,735	$630.07	$593.76 - $655.75
Q1 2014	2,531	$1,509	$569.59	$527.17 - $596.87
Q4 2013	2,517	$1,461	$542.65	$511.06 - $582.59
Q3 2013	1,428	$739	$525.40	$506.64 - $549.09
Q2 2013	860	$453	$523.59	$501.76 - $546.94