AON PLC

CUSIP: G0408V102 Class: SHS CL A

Chesley Taft & Associates LLC's Holding History (CIK: 0001164632)

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

Q4 2019
Shares 10,137 Value ($000) $2,111 Avg Close — Range —
Q3 2019
Shares 10,087 Value ($000) $1,953 Avg Close — Range —
Q2 2019
Shares 9,667 Value ($000) $1,866 Avg Close — Range —
Q1 2019
Shares 1,550 Value ($000) $265 Avg Close — Range —
Q4 2018
Shares 1,550 Value ($000) $225 Avg Close — Range —
Q3 2018
Shares 1,550 Value ($000) $238 Avg Close — Range —
Q2 2018
Shares 1,550 Value ($000) $213 Avg Close — Range —
Q1 2018
Shares 1,550 Value ($000) $218 Avg Close — Range —
Q4 2017
Shares 1,860 Value ($000) $249 Avg Close — Range —
Q3 2017
Shares 1,860 Value ($000) $272 Avg Close — Range —
Q2 2017
Shares 1,860 Value ($000) $247 Avg Close — Range —
Q1 2017
Shares 1,860 Value ($000) $221 Avg Close — Range —
Q4 2016
Shares 1,860 Value ($000) $207 Avg Close — Range —
Q3 2016
Shares 1,860 Value ($000) $209 Avg Close — Range —
Q2 2016
Shares 1,860 Value ($000) $203 Avg Close — Range —