Aon plc
DE ˙ DB ˙ IE00BLP1HW54
276,10 € ↑5,50 (2,03%)
2026-06-05
DEL PRIS
SecurityDE:4VK / Aon plc
InstitutionDuncker Streett & Co Inc
Latest Disclosed Ownership3,289 shares
Latest Disclosed Value $ 1,061,623
Duncker Streett & Co Inc ownership in 4VK / Aon plc

On April 29, 2026 - Duncker Streett & Co Inc filed a 13F-HR form disclosing ownership of 3,289 shares of Aon plc (DE:4VK) valued at $921,249 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 3,289 shares of Aon plc. This represents a change in shares of 0.00% during the quarter. The current value of the position is $908,093 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)
2026-04-29 2026-03-31 13F AON SHS CL A G0403H108 3,289 0 0.00 1,062 -8.53 0.2018
2026-01-27 2025-12-31 13F AON SHS CL A G0403H108 3,289 0 0.00 1,161 -1.02 0.2063
2025-10-23 2025-09-30 13F AON SHS CL A G0403H108 3,289 0 0.00 1,173 -0.09 0.2043
2025-07-28 2025-06-30 13F AON SHS CL A G0403H108 3,289 0 0.00 1,173 -10.59 0.2141
2025-04-22 2025-03-31 13F AON SHS CL A G0403H108 3,289 0 0.00 1,313 11.09 0.2601
2025-02-05 2024-12-31 13F AON SHS CL A G0403H108 3,289 0 0.00 1,181 3.87 0.2193
2024-11-12 2024-09-30 13F AON SHS CL A G0403H108 3,289 0 0.00 1,138 17.82 0.2077
2024-07-31 2024-06-30 13F AON SHS CL A G0403H108 3,289 0 0.00 966 -12.03 0.1856
2024-04-23 2024-03-31 13F AON SHS CL A G0403H108 3,289 252 8.30 1,098 24.24 0.2167
2024-01-30 2023-12-31 13F AON SHS CL A G0403H108 3,037 0 0.00 884 -10.26 0.1866
2023-10-26 2023-09-30 13F AON SHS CL A G0403H108 3,037 0 0.00 985 -6.11 0.2292
2023-07-20 2023-06-30 13F AON SHS CL A G0403H108 3,037 0 0.00 1,048 9.51 0.2345
2023-04-24 2023-03-31 13F AON SHS CL A G0403H108 3,037 0 0.00 958 5.05 0.2281
2023-01-25 2022-12-31 13F AON SHS CL A G0403H108 3,037 0 0.00 912 11.92 0.2201
2022-11-04 2022-09-30 13F AON SHS CL A G0403H108 3,037 0 0.00 814 -0.61 0.2111
2022-08-04 2022-06-30 13F AON SHS CL A G0403H108 3,037 0 0.00 819 -17.19 0.1963
2022-05-09 2022-03-31 13F AON SHS CL A G0403H108 3,037 0 0.00 989 8.32 0.1967
2022-02-08 2021-12-31 13F AON SHS CL A G0403H108 3,037 0 0.00 913 5.18 0.1572
2021-11-03 2021-09-30 13F AON SHS CL A G0403H108 3,037 0 0.00 868 19.72 0.1644
2021-07-27 2021-06-30 13F AON SHS CL A G0403H108 3,037 0 0.00 725 3.72 0.1337
2021-04-28 2021-03-31 13F AON SHS CL A G0403H108 3,037 0 0.00 699 8.88 0.1333
2021-02-02 2020-12-31 13F AON SHS CL A G0403H108 3,037 0 0.00 642 2.39 0.1242
2020-10-28 2020-09-30 13F AON SHS CL A G0403H108 3,037 0 0.00 627 7.18 0.1369
2020-07-22 2020-06-30 13F AON SHS CL A G0403H108 3,037 0 0.00 585 16.77 0.1392
2020-04-27 2020-03-31 13F AON SHS CL A G0408V102 3,037 0 0.00 501 -20.85 0.1338
2020-01-27 2019-12-31 13F AON SHS CL A G0408V102 3,037 0 0.00 633 7.65 0.1328
2019-10-31 2019-09-30 13F AON SHS CL A G0408V102 3,037 0 0.00 588 0.34 0.1367
2019-07-24 2019-06-30 13F AON SHS CL A G0408V102 3,037 0 0.00 586 13.13 0.1315
2019-04-29 2019-03-31 13F AON SHS CL A G0408V102 3,037 0 0.00 518 17.46 0.1194
2019-01-24 2018-12-31 13F AON SHS CL A G0408V102 3,037 0 0.00 441 -5.57 0.1181
2018-10-22 2018-09-30 13F AON SHS CL A G0408V102 3,037 0 0.00 467 11.99 0.1061
2018-07-23 2018-06-30 13F AON SHS CL A G0408V102 3,037 0 0.00 417 -2.11 0.1034
2018-04-26 2018-03-31 13F AON SHS CL A G0408V102 3,037 0 0.00 426 4.67 0.1078
2018-01-23 2017-12-31 13F AON SHS CL A G0408V102 3,037 0 0.00 407 -8.33 0.1046
2017-10-25 2017-09-30 13F AON SHS CL A G0408V102 3,037 0 0.00 444 9.90 0.1344
2017-07-21 2017-06-30 13F AON SHS CL A G0408V102 3,037 0 0.00 404 12.22 0.1260
2017-04-25 2017-03-31 13F AON SHS CL A G0408V102 3,037 0 0.00 360 6.19 0.1129
2017-01-26 2016-12-31 13F AON SHS CL A G0408V102 3,037 0 0.00 339 -0.88 0.1127
2016-10-20 2016-09-30 13F AON SHS CL A G0408V102 3,037 0 0.00 342 3.01 0.1185
2016-07-20 2016-06-30 13F AON SHS CL A G0408V102 3,037 0 0.00 332 4.73 0.1181
2016-04-25 2016-03-31 13F AON SHS CL A G0408V102 3,037 0 0.00 317 13.21 0.1173
2016-01-20 2015-12-31 13F AON SHS CL A G0408V102 3,037 0 0.00 280 4.09 0.1049
2015-10-27 2015-09-30 13F AON SHS CL A G0408V102 3,037 0 0.00 269 -11.22 0.1046
2015-07-20 2015-06-30 13F AON SHS CL A G0408V102 3,037 0 0.00 303 3.77 0.1056
2015-04-28 2015-03-31 13F AON SHS CL A G0408V102 3,037 0 0.00 292 1.39 0.0956
2015-01-22 2014-12-31 13F AON SHS CL A G0408V102 3,037 0 0.00 288 8.27 0.0944
2014-10-23 2014-09-30 13F AON SHS CL A G0408V102 3,037 0 0.00 266 -2.92 0.0907
2014-07-23 2014-06-30 13F AON SHS CL A G0408V102 3,037 0 0.00 274 7.03 0.0886
2014-04-23 2014-03-31 13F AON SHS CL A G0408V102 3,037 0 0.00 256 0.39 0.0906
2014-01-22 2013-12-31 13F AON SHS CL A G0408V102 3,037 0 0.00 255 12.83 0.0918
2013-10-23 2013-09-30 13F AON SHS CL A G0408V102 3,037 0 0.00 226 15.90 0.0915
2013-07-26 2013-06-30 13F AON SHS CL A G0408V102 3,037 3,037 195 0.0747
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.