Aon plc
DE ˙ DB ˙ IE00BLP1HW54
276,10 € ↑5,50 (2,03%)
2026-06-05
DEL PRIS
SecurityDE:4VK / Aon plc
InstitutionHaverford Trust Co
Latest Disclosed Ownership346,117 shares
Latest Disclosed Value $ 111,719,758
Haverford Trust Co reports 1.44% decrease in ownership of 4VK / Aon plc

On May 11, 2026 - Haverford Trust Co filed a 13F-HR form disclosing ownership of 346,117 shares of Aon plc (DE:4VK) valued at $96,947,372 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 351,168 shares of Aon plc. This represents a change in shares of -1.44% during the quarter. The current value of the position is $95,562,904 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)
2026-05-11 2026-03-31 13F AON SHS CL A G0403H108 346,117 -5,051 -1.44 111,720 -9.85 1.0237
2026-02-13 2025-12-31 13F AON SHS CL A G0403H108 351,168 -28,917 -7.61 123,920 -8.57 1.1050
2025-11-14 2025-09-30 13F AON SHS CL A G0403H108 380,085 -5,217 -1.35 135,531 -1.40 1.2226
2025-08-13 2025-06-30 13F AON SHS CL A G0403H108 385,302 -1,447 -0.37 137,460 -10.94 1.3060
2025-05-14 2025-03-31 13F AON SHS CL A G0403H108 386,749 46,531 13.68 154,348 26.32 1.5535
2025-02-11 2024-12-31 13F AON SHS CL A G0403H108 340,218 3,178 0.94 122,193 4.79 1.2132
2024-11-05 2024-09-30 13F AON SHS CL A G0403H108 337,040 1,090 0.32 116,612 18.23 1.1362
2024-08-13 2024-06-30 13F AON SHS CL A G0403H108 335,950 -11,314 -3.26 98,628 -14.89 1.0382
2024-05-02 2024-03-31 13F AON SHS CL A G0403H108 347,264 1,560 0.45 115,889 15.19 1.2109
2024-02-08 2023-12-31 13F AON SHS CL A G0403H108 345,704 -2,446 -0.70 100,607 -10.87 1.1161
2023-11-09 2023-09-30 13F AON SHS CL A G0403H108 348,150 -2,720 -0.78 112,877 -6.81 1.3756
2023-08-08 2023-06-30 13F AON SHS CL A G0403H108 350,870 4,905 1.42 121,120 11.04 1.3668
2023-05-12 2023-03-31 13F AON SHS CL A G0403H108 345,965 15,594 4.72 109,079 10.01 1.3028
2023-02-13 2022-12-31 13F AON SHS CL A G0403H108 330,371 33,535 11.30 99,158 24.71 1.2209
2022-11-14 2022-09-30 13F AON SHS CL A G0403H108 296,836 64,852 27.96 79,513 27.10 1.0893
2022-08-12 2022-06-30 13F AON SHS CL A G0403H108 231,984 229,213 8,271.85 62,561 6,835.81 0.8154
2022-05-05 2022-03-31 13F AON SHS CL A G0403H108 2,771 -125 -4.32 902 3.68 0.0104
2022-02-14 2021-12-31 13F AON SHS CL A G0403H108 2,896 126 4.55 870 9.85 0.0095
2021-11-12 2021-09-30 13F AON SHS CL A G0403H108 2,770 0 0.00 792 19.82 0.0095
2021-08-16 2021-06-30 13F/A-1 AON SHS CL A G0403H108 2,770 1,500 118.11 661 126.37 0.0078
2021-08-16 2021-06-30 13F AON SHS CL A G0403H108 661 -609 661 0.0078
2021-05-12 2021-03-31 13F AON SHS CL A G0403H108 1,270 -190 -13.01 292 -5.19 0.0037
2021-02-05 2020-12-31 13F AON SHS CL A G0403H108 1,460 -922 -38.71 308 -37.27 0.0044
2020-11-10 2020-09-30 13F AON SHS CL A G0403H108 2,382 2,382 63.15 491 59.42 0.0078
2019-02-12 2018-12-31 13F AON SHS CL A G0408V102 0 -1,314 -100.00 0 -100.00
2018-11-08 2018-09-30 13F AON SHS CL A G0408V102 1,314 1,314 202 0.0037
2018-05-09 2018-03-31 13F AON SHS CL A G0408V102 0 -1,653 -100.00 0 -100.00
2018-02-13 2017-12-31 13F AON SHS CL A G0408V102 1,653 0 0.00 222 -8.26 0.0044
2017-11-09 2017-09-30 13F AON SHS CL A G0408V102 1,653 95 6.10 242 16.91 0.0051
2017-08-14 2017-06-30 13F AON SHS CL A G0408V102 1,558 1,558 -5.75 207 -14.46 0.0045
2015-02-09 2014-12-31 13F AON SHS CL A G0408V102 0 -2,400 -100.00 0 -100.00
2014-11-05 2014-09-30 13F AON SHS CL A G0408V102 2,400 -205 -7.87 210 -10.64 0.0063
2014-08-01 2014-06-30 13F AON SHS CL A G0408V102 2,605 2,605 235 0.0069
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.