Aon plc
DE ˙ DB ˙ IE00BLP1HW54
276,10 € ↑5,50 (2,03%)
2026-06-05
DEL PRIS
SecurityDE:4VK / Aon plc
InstitutionFayez Sarofim & Co
Latest Disclosed Ownership33,620 shares
Latest Disclosed Value $ 10,851,864
Fayez Sarofim & Co reports 27.66% increase in ownership of 4VK / Aon plc

On May 15, 2026 - Fayez Sarofim & Co filed a 13F-HR form disclosing ownership of 33,620 shares of Aon plc (DE:4VK) valued at $9,416,962 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 26,336 shares of Aon plc. This represents a change in shares of 27.66% during the quarter. The current value of the position is $9,282,482 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)
2026-05-15 2026-03-31 13F AON PLC- Common Stock G0403H108 33,620 7,284 27.66 10,852 16.77 0.0088
2026-02-13 2025-12-31 13F AON PLC- Common Stock G0403H108 26,336 8,297 45.99 9,293 44.48 0.0223
2025-11-14 2025-09-30 13F AON PLC SHS CL A SHS CL A G0403H108 18,039 118 0.66 6,432 0.61 0.0149
2025-08-14 2025-06-30 13F AON SHS CL A G0403H108 17,921 205 1.16 6,393 -9.58 0.0153
2025-05-12 2025-03-31 13F AON SHS CL A G0403H108 17,716 1,274 7.75 7,070 19.73 0.0176
2025-02-14 2024-12-31 13F AON SHS CL A G0403H108 16,442 16,442 5,905 0.0144
2024-08-14 2024-06-30 13F AON SHS CL A G0403H108 0 -807 -100.00 0 -100.00
2024-05-14 2024-03-31 13F AON SHS CL A G0403H108 807 0 0.00 269 6.75 0.0008
2024-02-15 2023-12-31 13F AONPLC SHSCLA G0403H108 807 -684 -45.88 252 -47.83 0.0008
2023-11-15 2023-09-30 13F AON SHS CL A G0403H108 1,491 -150 -9.14 483 -14.66 0.0016
2023-08-14 2023-06-30 13F AON SHS CL A G0403H108 1,641 233 16.55 566 27.77 0.0020
2023-05-11 2023-03-31 13F AON SHS CL A G0403H108 1,408 0 0.00 444 4.98 0.0016
2023-02-13 2022-12-31 13F AON SHS CL A G0403H108 1,408 156 12.46 423 25.97 0.0016
2022-11-15 2022-09-30 13F AON SHS CL A G0403H108 1,252 156 14.23 335 13.18 0.0013
2022-08-12 2022-06-30 13F AON SHS CL A G0403H108 1,096 -152 -12.18 296 -27.09 0.0011
2022-05-16 2022-03-31 13F AON SHS CL A G0403H108 1,248 0 0.00 406 8.27 0.0013
2022-02-11 2021-12-31 13F AON SHS CL A G0403H108 1,248 0 0.00 375 5.04 0.0011
2021-11-15 2021-09-30 13F AON SHS CL A G0403H108 1,248 0 0.00 357 19.80 0.0012
2021-08-13 2021-06-30 13F AONPLC COMMON G0403H108 1,248 0 0.00 298 3.83 0.0010
2021-05-13 2021-03-31 13F AONPLC COMMON G0403H108 1,248 1,248 287 0.0011
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.