AON PLC

Ticker: AON CUSIP: G0403H108 Class: SHS CL A

STATE OF MICHIGAN RETIREMENT SYSTEM's Holding History (CIK: 0000762152)

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

Q4 2025

Shares 56,258 Value ($000) $19,852 Avg Close $349.16 Range $324.28 - $370.31

Q3 2025

Shares 58,358 Value ($000) $20,809 Avg Close $361.49 Range $345.06 - $380.20

Q2 2025

Shares 58,758 Value ($000) $20,963 Avg Close $361.30 Range $322.37 - $399.35

Q1 2025

Shares 58,658 Value ($000) $23,410 Avg Close $381.59 Range $343.99 - $411.24

Q4 2024

Shares 58,658 Value ($000) $21,068 Avg Close $365.26 Range $339.24 - $392.96

Q3 2024

Shares 59,158 Value ($000) $20,468 Avg Close $324.38 Range $288.84 - $350.77

Q2 2024

Shares 59,558 Value ($000) $17,485 Avg Close $292.51 Range $264.78 - $328.92

Q1 2024

Shares 54,858 Value ($000) $18,307 Avg Close $306.03 Range $281.78 - $331.94

Q4 2023

Shares 54,858 Value ($000) $15,965 Avg Close $315.32 Range $280.78 - $332.21

Q3 2023

Shares 55,658 Value ($000) $18,045 Avg Close $325.28 Range $307.94 - $339.08

Q2 2023

Shares 56,158 Value ($000) $19,386 Avg Close $318.69 Range $301.32 - $341.07

Q1 2023

Shares 56,358 Value ($000) $17,769 Avg Close $303.19 Range $275.29 - $321.21

Q4 2022

Shares 56,258 Value ($000) $16,885 Avg Close $285.70 Range $260.07 - $307.82

Q3 2022

Shares 57,058 Value ($000) $15,284 Avg Close $275.86 Range $255.74 - $296.14

Q2 2022

Shares 57,358 Value ($000) $15,468 Avg Close $279.95 Range $239.95 - $332.69

Q1 2022

Shares 54,158 Value ($000) $17,635 Avg Close $282.81 Range $252.06 - $322.12

Q4 2021

Shares 55,424 Value ($000) $16,658 Avg Close $290.95 Range $274.90 - $316.79

Q3 2021

Shares 62,924 Value ($000) $17,982 Avg Close $260.29 Range $215.96 - $293.10

Q2 2021

Shares 62,924 Value ($000) $15,024 Avg Close $236.31 Range $221.03 - $252.51

Q1 2021

Shares 62,924 Value ($000) $14,479 Avg Close $212.41 Range $193.30 - $227.75

Q4 2020

Shares 63,724 Value ($000) $13,463 Avg Close $196.52 Range $172.95 - $208.05

Q3 2020

Shares 64,124 Value ($000) $13,229 Avg Close $191.78 Range $180.89 - $203.83

Q2 2020

Shares 59,024 Value ($000) $11,368 Avg Close $178.56 Range $144.47 - $196.01

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	56,258	$19,852	$349.16	$324.28 - $370.31
Q3 2025	58,358	$20,809	$361.49	$345.06 - $380.20
Q2 2025	58,758	$20,963	$361.30	$322.37 - $399.35
Q1 2025	58,658	$23,410	$381.59	$343.99 - $411.24
Q4 2024	58,658	$21,068	$365.26	$339.24 - $392.96
Q3 2024	59,158	$20,468	$324.38	$288.84 - $350.77
Q2 2024	59,558	$17,485	$292.51	$264.78 - $328.92
Q1 2024	54,858	$18,307	$306.03	$281.78 - $331.94
Q4 2023	54,858	$15,965	$315.32	$280.78 - $332.21
Q3 2023	55,658	$18,045	$325.28	$307.94 - $339.08
Q2 2023	56,158	$19,386	$318.69	$301.32 - $341.07
Q1 2023	56,358	$17,769	$303.19	$275.29 - $321.21
Q4 2022	56,258	$16,885	$285.70	$260.07 - $307.82
Q3 2022	57,058	$15,284	$275.86	$255.74 - $296.14
Q2 2022	57,358	$15,468	$279.95	$239.95 - $332.69
Q1 2022	54,158	$17,635	$282.81	$252.06 - $322.12
Q4 2021	55,424	$16,658	$290.95	$274.90 - $316.79
Q3 2021	62,924	$17,982	$260.29	$215.96 - $293.10
Q2 2021	62,924	$15,024	$236.31	$221.03 - $252.51
Q1 2021	62,924	$14,479	$212.41	$193.30 - $227.75
Q4 2020	63,724	$13,463	$196.52	$172.95 - $208.05
Q3 2020	64,124	$13,229	$191.78	$180.89 - $203.83
Q2 2020	59,024	$11,368	$178.56	$144.47 - $196.01