Aon plc
US ˙ NYSE ˙ IE00BLP1HW54

SecurityAON / Aon plc
InstitutionWest Paces Advisors Inc.
Latest Disclosed Ownership759 shares
Latest Disclosed Value $ 244,990
West Paces Advisors Inc. reports 11.64% decrease in ownership of AON / Aon plc

On May 5, 2026 - West Paces Advisors Inc. filed a 13F-HR form disclosing ownership of 759 shares of Aon plc (US:AON) valued at $244,990 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 21, 2026 disclosing 859 shares of Aon plc. This represents a change in shares of -11.64% during the quarter. The current value of the position is $239,540 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-05 2026-03-31 13F AON SHS CL A G0403H108 759 -100 -11.64 245 -19.47 0.0475
2026-01-21 2025-12-31 13F AON SHS CL A G0403H108 859 0 0.00 303 -0.98 0.0586
2025-10-22 2025-09-30 13F AON SHS CL A G0403H108 859 -100 -10.43 306 -10.53 0.0610
2025-07-23 2025-06-30 13F AON SHS CL A G0403H108 959 0 0.00 342 -10.47 0.0728
2025-04-15 2025-03-31 13F AON PLC SHS CL A Stock G0403H108 959 -926 -49.12 383 -43.57 0.0872
2025-02-14 2024-12-31 13F AON PLC SHS CL A Stock G0403H108 1,885 -500 -20.96 677 -17.94 0.1653
2024-10-15 2024-09-30 13F AON PLC SHS CL A Stock G0403H108 2,385 -7,698 -76.35 825 -72.13 0.2021
2024-07-17 2024-06-30 13F AON PLC SHS CL A Stock G0403H108 10,083 9,657 2,266.90 2,960 1,984.51 0.7719
2024-04-15 2024-03-31 13F AON PLC SHS CL A Stock G0403H108 426 0 0.00 142 15.45 0.0375
2024-01-30 2023-12-31 13F AON PLC SHS CL A Stock G0403H108 426 45 11.81 124 0.00 0.0348
2023-12-18 2023-09-30 13F AON PLC SHS CL A Stock G0403H108 381 0 0.00 124 -6.11 0.0387
2023-12-18 2023-06-30 13F AON PLC SHS CL A Stock G0403H108 381 0 0.00 132 9.17 0.0388
2023-12-18 2023-03-31 13F AON PLC SHS CL A Stock G0403H108 381 0 0.00 120 5.26 0.0373
2023-12-18 2022-12-31 13F AON PLC SHS CL A Stock G0403H108 381 0 0.00 114 11.76 0.0364
2023-12-19 2022-09-30 13F AON PLC SHS CL A Stock G0403H108 381 0 0.00 102 0.00 0.0363
2023-12-19 2022-06-30 13F AON PLC SHS CL A Stock G0403H108 381 -100 -20.79 103 -34.62 0.0350
2023-12-19 2022-03-31 13F AON PLC SHS CL A Stock G0403H108 481 0 0.00 157 8.33 0.0489
2023-12-20 2021-12-31 13F AON PLC SHS CL A Stock G0403H108 481 0 0.00 145 5.11 0.0451
2023-12-20 2021-09-30 13F AON PLC SHS CL A Stock G0403H108 481 0 0.00 137 20.18 0.0482
2023-12-20 2021-06-30 13F AON PLC SHS CL A Stock G0403H108 481 0 0.00 115 3.64 0.0422
2023-12-20 2021-03-31 13F AON PLC SHS CL A Stock G0403H108 481 0 0.00 111 8.91 0.0445
2023-12-20 2020-12-31 13F AON PLC SHS CL A Stock G0403H108 481 0 0.00 102 2.02 0.0452
2023-12-20 2020-09-30 13F AON PLC SHS CL A Stock G0403H108 481 0 0.00 99 7.61 0.0507
2023-12-20 2020-06-30 13F AON PLC SHS CL A Stock G0403H108 481 0 0.00 93 16.46 0.0501
2023-12-21 2020-03-31 13F AON PLC SHS CL A Stock G0403H108 481 -32 -6.24 79 -25.47 0.0504
2023-12-22 2019-12-31 13F AON PLC SHS CL A Stock G0403H108 513 0 0.00 107 7.07 0.0581
2023-12-22 2019-09-30 13F AON PLC SHS CL A Stock G0403H108 513 0 0.00 99 1.02 0.0593
2023-12-22 2019-06-30 13F AON PLC SHS CL A Stock G0403H108 513 0 0.00 99 12.64 0.0618
2023-12-22 2019-03-31 13F AON PLC SHS CL A Stock G0403H108 513 0 0.00 88 17.57 0.0613
2023-12-22 2018-12-31 13F AON PLC SHS CL A Stock G0403H108 513 0 0.00 75 -5.13 0.0575
2023-12-21 2018-09-30 13F AON PLC SHS CL A Stock G0403H108 513 0 0.00 79 11.43 0.0568
2023-12-22 2018-06-30 13F AON PLC SHS CL A Stock G0403H108 513 0 0.00 70 -1.41 0.0526
2023-12-22 2018-03-31 13F AON PLC SHS CL A Stock G0403H108 513 0 0.00 72 4.41 0.0536
2023-12-22 2017-12-31 13F AON PLC SHS CL A Stock G0403H108 513 0 0.00 69 -8.11 0.0509
2023-12-22 2017-09-30 13F AON PLC SHS CL A Stock G0403H108 513 0 0.00 75 8.82 0.0565
2023-12-22 2017-06-30 13F AON PLC SHS CL A Stock G0403H108 513 0 0.00 68 13.33 0.0541
2023-12-22 2017-03-31 13F AON PLC SHS CL A Stock G0403H108 513 0 0.00 61 5.26 0.0486
2023-12-22 2016-12-31 13F AON PLC SHS CL A Stock G0403H108 513 513 57 0.0534
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.