Aon plc
DE ˙ DB ˙ IE00BLP1HW54
276,10 € ↑5,50 (2,03%)
2026-06-05
DEL PRIS
SecurityDE:4VK / Aon plc
InstitutionBallentine Partners, LLC
Latest Disclosed Ownership1,893 shares
Latest Disclosed Value $ 611,216
Ballentine Partners, LLC reports 10.67% decrease in ownership of 4VK / Aon plc

On May 14, 2026 - Ballentine Partners, LLC filed a 13F-HR form disclosing ownership of 1,893 shares of Aon plc (DE:4VK) valued at $530,229 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 2,119 shares of Aon plc. This represents a change in shares of -10.67% during the quarter. The current value of the position is $522,657 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)
2026-05-14 2026-03-31 13F AON SHS CL A G0403H108 1,893 -226 -10.67 611 -18.21 0.0060
2026-02-03 2025-12-31 13F AON SHS CL A G0403H108 2,119 136 6.86 748 5.81 0.0105
2025-11-03 2025-09-30 13F AON SHS CL A G0403H108 1,983 -12 -0.60 707 -0.70 0.0098
2025-07-15 2025-06-30 13F AON SHS CL A G0403H108 1,995 7 0.35 712 -10.34 0.0107
2025-05-01 2025-03-31 13F AON SHS CL A G0403H108 1,988 90 4.74 793 16.45 0.0138
2025-01-16 2024-12-31 13F AON SHS CL A G0403H108 1,898 86 4.75 682 8.79 0.0117
2024-10-23 2024-09-30 13F AON SHS CL A G0403H108 1,812 160 9.69 627 29.34 0.0107
2024-08-06 2024-06-30 13F AON SHS CL A G0403H108 1,652 -449 -21.37 485 -30.96 0.0090
2024-04-11 2024-03-31 13F AON SHS CL A G0403H108 2,101 78 3.86 701 19.22 0.0133
2024-01-23 2023-12-31 13F AON SHS CL A G0403H108 2,023 156 8.36 589 -2.81 0.0120
2023-10-19 2023-09-30 13F AON SHS CL A G0403H108 1,867 39 2.13 605 -4.12 0.0142
2023-07-26 2023-06-30 13F AON SHS CL A G0403H108 1,828 95 5.48 631 15.57 0.0145
2023-04-27 2023-03-31 13F AON SHS CL A G0403H108 1,733 647 59.58 546 68.00 0.0137
2023-01-27 2022-12-31 13F AON SHS CL A G0403H108 1,086 4 0.37 326 12.07 0.0097
2022-10-26 2022-09-30 13F AON SHS CL A G0403H108 1,082 1,082 290 0.0100
2021-01-25 2020-12-31 13F AON SHS CL A G0403H108 0 -1,618 -100.00 0 -100.00
2020-10-22 2020-09-30 13F AON SHS CL A G0403H108 1,618 -5 -0.31 334 7.05 0.0148
2020-07-31 2020-06-30 13F AON SHS CL A G0403H108 1,623 9 0.56 312 16.85 0.0149
2020-04-23 2020-03-31 13F AON SHS CL A G0408V102 1,614 132 8.91 267 -13.59 0.0155
2020-01-22 2019-12-31 13F AON SHS CL A G0408V102 1,482 0 0.00 309 8.04 0.0140
2019-10-21 2019-09-30 13F AON SHS CL A G0408V102 1,482 0 0.00 286 0.00 0.0134
2019-07-25 2019-06-30 13F AON SHS CL A G0408V102 1,482 211 16.60 286 31.80 0.0137
2019-05-09 2019-03-31 13F AON SHS CL A G0408V102 1,271 1,271 217 0.0113
2018-10-30 2018-09-30 13F AON SHS CL A G0408V102 0 -1,505 -100.00 0 -100.00
2018-07-19 2018-06-30 13F AON SHS CL A G0408V102 1,505 27 1.83 206 -0.96 0.0114
2018-04-26 2018-03-31 13F AON SHS CL A G0408V102 1,478 1,478 208 0.0117
2018-02-02 2017-12-31 13F AON SHS CL A G0408V102 0 -1,485 -100.00 0 -100.00
2017-11-06 2017-09-30 13F AON SHS CL A G0408V102 1,485 -134 -8.28 218 -3.11 0.0120
2017-08-03 2017-06-30 13F AON SHS CL A G0408V102 1,619 1,619 225 0.0164
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.