AON PLC

Ticker: AON CUSIP: G0403H108 Class: SHS CL A

STATE OF WISCONSIN INVESTMENT BOARD's Holding History (CIK: 0000854157)

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

Q4 2025

Shares 108,259 Value ($000) $38,202 Avg Close $349.16 Range $324.28 - $370.31

Q3 2025

Shares 109,443 Value ($000) $39,025 Avg Close $361.49 Range $345.06 - $380.20

Q2 2025

Shares 105,706 Value ($000) $37,712 Avg Close $361.30 Range $322.37 - $399.35

Q1 2025

Shares 111,280 Value ($000) $44,411 Avg Close $381.59 Range $343.99 - $411.24

Q4 2024

Shares 107,635 Value ($000) $38,658 Avg Close $365.26 Range $339.24 - $392.96

Q3 2024

Shares 111,801 Value ($000) $38,682 Avg Close $324.38 Range $288.84 - $350.77

Q2 2024

Shares 107,000 Value ($000) $31,413 Avg Close $292.51 Range $264.78 - $328.92

Q1 2024

Shares 108,355 Value ($000) $36,160 Avg Close $306.03 Range $281.78 - $331.94

Q4 2023

Shares 118,866 Value ($000) $34,592 Avg Close $315.32 Range $280.78 - $332.21

Q3 2023

Shares 108,676 Value ($000) $35,235 Avg Close $325.28 Range $307.94 - $339.08

Q2 2023

Shares 111,554 Value ($000) $38,508 Avg Close $318.69 Range $301.32 - $341.07

Q1 2023

Shares 131,517 Value ($000) $41,466 Avg Close $303.19 Range $275.29 - $321.21

Q4 2022

Shares 112,591 Value ($000) $33,793 Avg Close $285.70 Range $260.07 - $307.82

Q3 2022

Shares 125,984 Value ($000) $33,747 Avg Close $275.86 Range $255.74 - $296.14

Q2 2022

Shares 154,018 Value ($000) $41,536 Avg Close $279.95 Range $239.95 - $332.69

Q1 2022

Shares 160,136 Value ($000) $52,145 Avg Close $282.81 Range $252.06 - $322.12

Q4 2021

Shares 249,036 Value ($000) $74,850 Avg Close $290.95 Range $274.90 - $316.79

Q3 2021

Shares 252,245 Value ($000) $72,084 Avg Close $260.29 Range $215.96 - $293.10

Q2 2021

Shares 449,123 Value ($000) $107,233 Avg Close $236.31 Range $221.03 - $252.51

Q1 2021

Shares 625,337 Value ($000) $143,896 Avg Close $212.41 Range $193.30 - $227.75

Q4 2020

Shares 668,899 Value ($000) $141,318 Avg Close $196.52 Range $172.95 - $208.05

Q3 2020

Shares 679,259 Value ($000) $140,131 Avg Close $191.78 Range $180.89 - $203.83

Q2 2020

Shares 773,230 Value ($000) $148,924 Avg Close $178.56 Range $144.47 - $196.01

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	108,259	$38,202	$349.16	$324.28 - $370.31
Q3 2025	109,443	$39,025	$361.49	$345.06 - $380.20
Q2 2025	105,706	$37,712	$361.30	$322.37 - $399.35
Q1 2025	111,280	$44,411	$381.59	$343.99 - $411.24
Q4 2024	107,635	$38,658	$365.26	$339.24 - $392.96
Q3 2024	111,801	$38,682	$324.38	$288.84 - $350.77
Q2 2024	107,000	$31,413	$292.51	$264.78 - $328.92
Q1 2024	108,355	$36,160	$306.03	$281.78 - $331.94
Q4 2023	118,866	$34,592	$315.32	$280.78 - $332.21
Q3 2023	108,676	$35,235	$325.28	$307.94 - $339.08
Q2 2023	111,554	$38,508	$318.69	$301.32 - $341.07
Q1 2023	131,517	$41,466	$303.19	$275.29 - $321.21
Q4 2022	112,591	$33,793	$285.70	$260.07 - $307.82
Q3 2022	125,984	$33,747	$275.86	$255.74 - $296.14
Q2 2022	154,018	$41,536	$279.95	$239.95 - $332.69
Q1 2022	160,136	$52,145	$282.81	$252.06 - $322.12
Q4 2021	249,036	$74,850	$290.95	$274.90 - $316.79
Q3 2021	252,245	$72,084	$260.29	$215.96 - $293.10
Q2 2021	449,123	$107,233	$236.31	$221.03 - $252.51
Q1 2021	625,337	$143,896	$212.41	$193.30 - $227.75
Q4 2020	668,899	$141,318	$196.52	$172.95 - $208.05
Q3 2020	679,259	$140,131	$191.78	$180.89 - $203.83
Q2 2020	773,230	$148,924	$178.56	$144.47 - $196.01