Aon plc
DE ˙ DB ˙ IE00BLP1HW54
270,60 € ↓ -1,70 (-0,62%)
2026-06-04
DEL PRIS
SecurityDE:4VK / Aon plc
InstitutionCornerstone Advisory, LLC
Latest Disclosed Ownership631 shares
Latest Disclosed Value $ 203,674
Cornerstone Advisory, LLC reports 3.78% increase in ownership of 4VK / Aon plc

On May 4, 2026 - Cornerstone Advisory, LLC filed a 13F-HR form disclosing ownership of 631 shares of Aon plc (DE:4VK) valued at $176,743 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 608 shares of Aon plc. This represents a change in shares of 3.78% during the quarter. The current value of the position is $170,749 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)
2026-05-04 2026-03-31 13F AON SHS CL A G0403H108 631 23 3.78 204 -5.14 0.0193
2026-01-28 2025-12-31 13F AON SHS CL A G0403H108 608 0 0.00 215 -0.93 0.0205
2025-11-07 2025-09-30 13F AON SHS CL A G0403H108 608 10 1.67 217 1.41 0.0213
2025-07-30 2025-06-30 13F AON SHS CL A G0403H108 598 -5 -0.83 213 -0.93 0.0229
2025-05-07 2025-03-31 13F AON SHS CL A G0403H108 603 -36 -5.63 216 -12.96 0.0252
2025-02-18 2024-12-31 13F AON SHS CL A G0403H108 639 43 7.21 247 19.90 0.0281
2024-11-12 2024-09-30 13F AON SHS CL A G0403H108 596 596 206 0.0271
2023-07-20 2023-06-30 13F AON SHS CL A G0403H108 0 -962 -100.00 0 -100.00
2023-05-04 2023-03-31 13F AON SHS CL A G0403H108 962 7 0.73 303 5.94 0.0546
2023-02-13 2022-12-31 13F AON SHS CL A G0403H108 955 2 0.21 287 12.16 0.0565
2022-10-26 2022-09-30 13F AON SHS CL A G0403H108 953 0 0.00 255 -0.78 0.0569
2022-08-02 2022-06-30 13F AON SHS CL A G0403H108 953 0 0.00 257 -17.10 0.0588
2022-05-20 2022-03-31 13F AON SHS CL A G0403H108 953 -459 -32.51 310 -26.89 0.0473
2022-02-23 2021-12-31 13F AON SHS CL A G0403H108 1,412 460 48.32 424 55.88 0.0609
2021-11-16 2021-09-30 13F AON SHS CL A G0403H108 952 0 0.00 272 19.82 0.0450
2021-08-16 2021-06-30 13F AON SHS CL A G0403H108 952 0 0.00 227 3.65 0.0382
2021-05-13 2021-03-31 13F AON SHS CL A G0403H108 952 0 0.00 219 8.96 0.0414
2021-05-11 2020-12-31 13F AON SHS CL A G0403H108 952 952 201 0.0407
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.