AON PLC

Ticker: AON CUSIP: G0403H108 Class: SHS CL A

BROWN ADVISORY INC's Holding History (CIK: 0001345929)

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

Q4 2025

Shares 5,762 Value ($000) $2,033 Avg Close $349.16 Range $324.28 - $370.31

Q3 2025

Shares 5,951 Value ($000) $2,122 Avg Close $361.49 Range $345.06 - $380.20

Q2 2025

Shares 6,664 Value ($000) $2,378 Avg Close $361.30 Range $322.37 - $399.35

Q1 2025

Shares 6,412 Value ($000) $2,559 Avg Close $381.59 Range $343.99 - $411.24

Q4 2024

Shares 6,263 Value ($000) $2,249 Avg Close $365.26 Range $339.24 - $392.96

Q3 2024

Shares 6,340 Value ($000) $2,194 Avg Close $324.38 Range $288.84 - $350.77

Q2 2024

Shares 6,550 Value ($000) $1,923 Avg Close $292.51 Range $264.78 - $328.92

Q1 2024

Shares 6,516 Value ($000) $2,175 Avg Close $306.03 Range $281.78 - $331.94

Q4 2023

Shares 6,689 Value ($000) $1,947 Avg Close $315.32 Range $280.78 - $332.21

Q3 2023

Shares 6,102 Value ($000) $1,978 Avg Close $325.28 Range $307.94 - $339.08

Q2 2023

Shares 6,096 Value ($000) $2,104 Avg Close $318.69 Range $301.32 - $341.07

Q1 2023

Shares 5,909 Value ($000) $1,863 Avg Close $303.19 Range $275.29 - $321.21

Q4 2022

Shares 8,219 Value ($000) $2,467 Avg Close $285.70 Range $260.07 - $307.82

Q3 2022

Shares 5,676 Value ($000) $1,521 Avg Close $275.86 Range $255.74 - $296.14

Q2 2022

Shares 5,146 Value ($000) $1,388 Avg Close $279.95 Range $239.95 - $332.69

Q1 2022

Shares 5,436 Value ($000) $1,770 Avg Close $282.81 Range $252.06 - $322.12

Q4 2021

Shares 10,151 Value ($000) $3,050 Avg Close $290.95 Range $274.90 - $316.79

Q3 2021

Shares 5,380 Value ($000) $1,538 Avg Close $260.29 Range $215.96 - $293.10

Q2 2021

Shares 6,286 Value ($000) $1,502 Avg Close $236.31 Range $221.03 - $252.51

Q1 2021

Shares 6,296 Value ($000) $1,449 Avg Close $212.41 Range $193.30 - $227.75

Q4 2020

Shares 6,205 Value ($000) $1,311 Avg Close $196.52 Range $172.95 - $208.05

Q3 2020

Shares 5,459 Value ($000) $1,127 Avg Close $191.78 Range $180.89 - $203.83

Q2 2020

Shares 5,272 Value ($000) $1,016 Avg Close $178.56 Range $144.47 - $196.01

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	5,762	$2,033	$349.16	$324.28 - $370.31
Q3 2025	5,951	$2,122	$361.49	$345.06 - $380.20
Q2 2025	6,664	$2,378	$361.30	$322.37 - $399.35
Q1 2025	6,412	$2,559	$381.59	$343.99 - $411.24
Q4 2024	6,263	$2,249	$365.26	$339.24 - $392.96
Q3 2024	6,340	$2,194	$324.38	$288.84 - $350.77
Q2 2024	6,550	$1,923	$292.51	$264.78 - $328.92
Q1 2024	6,516	$2,175	$306.03	$281.78 - $331.94
Q4 2023	6,689	$1,947	$315.32	$280.78 - $332.21
Q3 2023	6,102	$1,978	$325.28	$307.94 - $339.08
Q2 2023	6,096	$2,104	$318.69	$301.32 - $341.07
Q1 2023	5,909	$1,863	$303.19	$275.29 - $321.21
Q4 2022	8,219	$2,467	$285.70	$260.07 - $307.82
Q3 2022	5,676	$1,521	$275.86	$255.74 - $296.14
Q2 2022	5,146	$1,388	$279.95	$239.95 - $332.69
Q1 2022	5,436	$1,770	$282.81	$252.06 - $322.12
Q4 2021	10,151	$3,050	$290.95	$274.90 - $316.79
Q3 2021	5,380	$1,538	$260.29	$215.96 - $293.10
Q2 2021	6,286	$1,502	$236.31	$221.03 - $252.51
Q1 2021	6,296	$1,449	$212.41	$193.30 - $227.75
Q4 2020	6,205	$1,311	$196.52	$172.95 - $208.05
Q3 2020	5,459	$1,127	$191.78	$180.89 - $203.83
Q2 2020	5,272	$1,016	$178.56	$144.47 - $196.01