MARKEL CORP

Ticker: MKL CUSIP: 570535104 Class: COMMON STOCK

MARSHALL WACE, LLP's Holding History (CIK: 0001318757)

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

Q4 2025

Shares 18,997 Value ($000) $40,837 Avg Close $2025.92 Range $1812.24 - $2207.59

Q3 2025

Shares 9,581 Value ($000) $18,313 Avg Close $1960.42 Range $1889.91 - $2075.92

Q2 2025

Shares 1,844 Value ($000) $3,683 Avg Close $1875.20 Range $1621.89 - $2004.24

Q1 2025

Shares 7,765 Value ($000) $14,518 Avg Close $1839.75 Range $1641.51 - $2063.68

Q4 2024

Shares 2,486 Value ($000) $4,291 Avg Close $1659.34 Range $1521.25 - $1809.11

Q3 2024

Shares 18,664 Value ($000) $29,276 Avg Close $1565.15 Range $1491.03 - $1660.74

Q2 2024

Shares 9,898 Value ($000) $15,596 Avg Close $1552.86 Range $1417.65 - $1670.24

Q3 2023

Shares 2,392 Value ($000) $3,522 Avg Close $1463.82 Range $1345.00 - $1560.00

Q2 2023

Shares 1,182 Value ($000) $1,635 Avg Close $1340.97 Range $1272.43 - $1400.00

Q1 2023

Shares 3,223 Value ($000) $4,117 Avg Close $1328.48 Range $1186.56 - $1458.56

Q4 2022

Shares 897 Value ($000) $1,182 Avg Close $1237.05 Range $1085.09 - $1356.37

Q4 2021

Shares 2,023 Value ($000) $2,497 Avg Close $1261.86 Range $1179.00 - $1343.56

Q2 2021

Shares 232 Value ($000) $275 Avg Close $1198.75 Range $1138.00 - $1268.96

Q4 2020

Shares 6,560 Value ($000) $6,778 Avg Close $996.82 Range $913.04 - $1073.43

Q3 2020

Shares 11,058 Value ($000) $10,767 Avg Close $1015.77 Range $881.00 - $1124.00

Q2 2020

Shares 5,358 Value ($000) $4,946 Avg Close $908.95 Range $761.06 - $1049.56

Q4 2019

Shares 496 Value ($000) $567 Avg Close $1138.97 Range $1100.00 - $1216.47

Q4 2018

Shares 3,439 Value ($000) $3,570 Avg Close $1093.58 Range $954.39 - $1203.43

Q3 2018

Shares 226 Value ($000) $269 Avg Close $1176.81 Range $1078.02 - $1228.32

Q3 2015

Shares 966 Value ($000) $775 Avg Close $846.01 Range $775.00 - $898.08

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	18,997	$40,837	$2025.92	$1812.24 - $2207.59
Q3 2025	9,581	$18,313	$1960.42	$1889.91 - $2075.92
Q2 2025	1,844	$3,683	$1875.20	$1621.89 - $2004.24
Q1 2025	7,765	$14,518	$1839.75	$1641.51 - $2063.68
Q4 2024	2,486	$4,291	$1659.34	$1521.25 - $1809.11
Q3 2024	18,664	$29,276	$1565.15	$1491.03 - $1660.74
Q2 2024	9,898	$15,596	$1552.86	$1417.65 - $1670.24
Q3 2023	2,392	$3,522	$1463.82	$1345.00 - $1560.00
Q2 2023	1,182	$1,635	$1340.97	$1272.43 - $1400.00
Q1 2023	3,223	$4,117	$1328.48	$1186.56 - $1458.56
Q4 2022	897	$1,182	$1237.05	$1085.09 - $1356.37
Q4 2021	2,023	$2,497	$1261.86	$1179.00 - $1343.56
Q2 2021	232	$275	$1198.75	$1138.00 - $1268.96
Q4 2020	6,560	$6,778	$996.82	$913.04 - $1073.43
Q3 2020	11,058	$10,767	$1015.77	$881.00 - $1124.00
Q2 2020	5,358	$4,946	$908.95	$761.06 - $1049.56
Q4 2019	496	$567	$1138.97	$1100.00 - $1216.47
Q4 2018	3,439	$3,570	$1093.58	$954.39 - $1203.43
Q3 2018	226	$269	$1176.81	$1078.02 - $1228.32
Q3 2015	966	$775	$846.01	$775.00 - $898.08