AON PLC

Ticker: AON CUSIP: G0403H108 Class: SHS CL A

MARTINGALE ASSET MANAGEMENT L P's Holding History (CIK: 0000936944)

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

Q2 2021

Shares 89,667 Value ($000) $21,410 Avg Close $236.31 Range $221.03 - $252.51

Q1 2021

Shares 139,317 Value ($000) $32,059 Avg Close $212.41 Range $193.30 - $227.75

Q4 2020

Shares 150,470 Value ($000) $31,791 Avg Close $196.52 Range $172.95 - $208.05

Q3 2020

Shares 166,649 Value ($000) $34,381 Avg Close $191.78 Range $180.89 - $203.83

Q2 2020

Shares 178,528 Value ($000) $34,386 Avg Close $178.56 Range $144.47 - $196.01

Q1 2020

Shares 181,775 Value ($000) $30,002 Avg Close $195.70 Range $137.67 - $227.83

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2021	89,667	$21,410	$236.31	$221.03 - $252.51
Q1 2021	139,317	$32,059	$212.41	$193.30 - $227.75
Q4 2020	150,470	$31,791	$196.52	$172.95 - $208.05
Q3 2020	166,649	$34,381	$191.78	$180.89 - $203.83
Q2 2020	178,528	$34,386	$178.56	$144.47 - $196.01
Q1 2020	181,775	$30,002	$195.70	$137.67 - $227.83