Aon plc
DE ˙ DB ˙ IE00BLP1HW54
272,30 € ↓ -1,70 (-0,62%)
2026-06-03
AKTIENPREIS
SecurityDE:4VK / Aon plc
InstitutionAdvisor OS, LLC
Latest Disclosed Ownership2,373 shares
Latest Disclosed Value $ 766,098
Advisor OS, LLC reports 153.53% increase in ownership of 4VK / Aon plc

On May 7, 2026 - Advisor OS, LLC filed a 13F-HR form disclosing ownership of 2,373 shares of Aon plc (DE:4VK) valued at $664,677 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 936 shares of Aon plc. This represents a change in shares of 153.53% during the quarter. The current value of the position is $646,168 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)
2026-05-07 2026-03-31 13F AON SHS CL A G0403H108 2,373 1,437 153.53 766 132.12 0.0215
2026-02-04 2025-12-31 13F AON SHS CL A G0403H108 936 20 2.18 330 1.23 0.0098
2025-11-12 2025-09-30 13F AON SHS CL A G0403H108 916 916 327 0.0282
2025-05-06 2025-03-31 13F AON SHS CL A G0403H108 0 -811 -100.00 0 -100.00
2025-02-05 2024-12-31 13F AON SHS CL A G0403H108 811 -232 -22.24 291 -19.17 0.0337
2024-11-04 2024-09-30 13F AON SHS CL A G0403H108 1,043 -179 -14.65 361 0.56 0.0359
2024-08-05 2024-06-30 13F AON SHS CL A G0403H108 1,222 -285 -18.91 359 -28.69 0.0393
2024-05-09 2024-03-31 13F AON SHS CL A G0403H108 1,507 -285 -15.90 503 -3.65 0.0578
2024-02-08 2023-12-31 13F AON SHS CL A G0403H108 1,792 212 13.42 522 1.76 0.0679
2023-11-03 2023-09-30 13F AON SHS CL A G0403H108 1,580 78 5.19 512 -1.16 0.0768
2023-08-08 2023-06-30 13F AON SHS CL A G0403H108 1,502 51 3.51 518 13.35 0.0848
2023-04-25 2023-03-31 13F AON SHS CL A G0403H108 1,451 99 7.32 457 12.84 0.1098
2023-02-01 2022-12-31 13F AON SHS CL A G0403H108 1,352 312 30.00 406 45.16 0.1078
2022-11-04 2022-09-30 13F AON SHS CL A G0403H108 1,040 0 0.00 279 -0.36 0.0841
2022-08-02 2022-06-30 13F AON SHS CL A G0403H108 1,040 -52 -4.76 280 -21.13 0.0817
2022-05-11 2022-03-31 13F AON SHS CL A G0403H108 1,092 -1,427 -56.65 355 -53.04 0.1028
2022-02-04 2021-12-31 13F AON SHS CL A G0403H108 2,519 91 3.75 756 8.78 0.1542
2021-11-15 2021-09-30 13F AON SHS CL A G0403H108 2,428 -72 -2.88 695 16.22 0.1511
2021-08-10 2021-06-30 13F AON SHS CL A G0403H108 2,500 871 53.47 598 59.89 0.1241
2021-05-13 2021-03-31 13F AON SHS CL A G0403H108 1,629 305 23.04 374 33.10 0.0848
2021-02-10 2020-12-31 13F AON SHS CL A G0403H108 1,324 -222 -14.36 281 -11.91 0.0754
2020-11-12 2020-09-30 13F AON SHS CL A G0403H108 1,546 1,546 319 0.1339
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.