Aon plc
US ˙ NYSE ˙ IE00BLP1HW54

SecurityAON / Aon plc
InstitutionSignaturefd, Llc
Latest Disclosed Ownership3,417 shares
Latest Disclosed Value $ 1,102,920
Signaturefd, Llc reports 1.18% increase in ownership of AON / Aon plc

On April 7, 2026 - Signaturefd, Llc filed a 13F-HR form disclosing ownership of 3,417 shares of Aon plc (US:AON) valued at $1,102,939 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 3,377 shares of Aon plc. This represents a change in shares of 1.18% during the quarter. The current value of the position is $1,122,587 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)
2026-04-07 2026-03-31 13F AON SHS CL A G0403H108 3,417 40 1.18 1,103 -7.47 0.0169
2026-01-20 2025-12-31 13F AON SHS CL A G0403H108 3,377 561 19.92 1,192 18.74 0.0182
2025-10-21 2025-09-30 13F AON SHS CL A G0403H108 2,816 5 0.18 1,004 0.10 0.0158
2025-07-16 2025-06-30 13F AON SHS CL A G0403H108 2,811 -79 -2.73 1,003 -13.10 0.0171
2025-05-02 2025-03-31 13F AON SHS CL A G0403H108 2,890 165 6.06 1,154 17.89 0.0218
2025-02-10 2024-12-31 13F AON SHS CL A G0403H108 2,725 79 2.99 979 6.89 0.0185
2024-10-21 2024-09-30 13F AON SHS CL A G0403H108 2,646 219 9.02 916 28.51 0.0174
2024-07-29 2024-06-30 13F AON SHS CL A G0403H108 2,427 607 33.35 712 17.30 0.0145
2024-05-03 2024-03-31 13F AON SHS CL A G0403H108 1,820 -329 -15.31 607 -2.88 0.0128
2024-02-01 2023-12-31 13F AON SHS CL A G0403H108 2,149 38 1.80 625 -8.63 0.0144
2023-11-03 2023-09-30 13F AON SHS CL A G0403H108 2,111 152 7.76 684 1.18 0.0178
2023-08-01 2023-06-30 13F AON SHS CL A G0403H108 1,959 25 1.29 676 11.00 0.0173
2023-04-28 2023-03-31 13F AON SHS CL A G0403H108 1,934 29 1.52 610 6.65 0.0166
2023-01-30 2022-12-31 13F AON SHS CL A G0403H108 1,905 296 18.40 572 32.48 0.0167
2022-11-08 2022-09-30 13F AON SHS CL A G0403H108 1,609 194 13.71 431 12.83 0.0148
2022-08-10 2022-06-30 13F AON SHS CL A G0403H108 1,415 15 1.07 382 -16.23 0.0130
2022-05-02 2022-03-31 13F AON SHS CL A G0403H108 1,400 229 19.56 456 29.55 0.0137
2022-01-25 2021-12-31 13F AON SHS CL A G0403H108 1,171 306 35.38 352 42.51 0.0108
2021-10-28 2021-09-30 13F AON SHS CL A G0403H108 865 203 30.66 247 56.33 0.0085
2021-07-26 2021-06-30 13F AON SHS CL A G0403H108 662 43 6.95 158 11.27 0.0063
2021-04-30 2021-03-31 13F AON SHS CL A G0403H108 619 73 13.37 142 23.48 0.0063
2021-02-11 2020-12-31 13F AON SHS CL A G0403H108 546 10 1.87 115 3.60 0.0054
2020-11-03 2020-09-30 13F AON SHS CL A G0403H108 536 -77 -12.56 111 -5.93 0.0059
2020-07-30 2020-06-30 13F AON SHS CL A G0403H108 613 -36 -5.55 118 10.28 0.0071
2020-04-23 2020-03-31 13F AON SHS CL A G0408V102 649 165 34.09 107 5.94 0.0092
2020-02-05 2019-12-31 13F AON SHS CL A G0408V102 484 76 18.63 101 27.85 0.0075
2019-10-16 2019-09-30 13F AON SHS CL A G0408V102 408 75 22.52 79 23.44 0.0065
2019-07-31 2019-06-30 13F AON SHS CL A G0408V102 333 25 8.12 64 20.75 0.0055
2019-05-09 2019-03-31 13F AON SHS CL A G0408V102 308 33 12.00 53 32.50 0.0045
2019-02-13 2018-12-31 13F AON SHS CL A G0408V102 275 66 31.58 40 25.00 0.0037
2018-11-14 2018-09-30 13F AON SHS CL A G0408V102 209 -7 -3.24 32 6.67 0.0033
2018-08-14 2018-06-30 13F AON SHS CL A G0408V102 216 18 9.09 30 7.14 0.0033
2018-05-08 2018-03-31 13F AON SHS CL A G0408V102 198 198 28 0.0033
2017-02-14 2016-12-31 13F AON SHS CL A G0408V102 0 -341 -100.00 0 -100.00
2016-11-14 2016-09-30 13F AON SHS CL A G0408V102 341 206 152.59 38 153.33 0.0056
2016-07-29 2016-06-30 13F AON SHS CL A G0408V102 135 0 0.00 15 7.14 0.0022
2016-05-12 2016-03-31 13F AON SHS CL A G0408V102 135 41 43.62 14 55.56 0.0024
2016-01-22 2015-12-31 13F AON SHS CL A G0408V102 94 -39 -29.32 9 -25.00 0.0017
2015-10-23 2015-09-30 13F AON SHS CL A G0408V102 133 133 0.00 12 0.0027
2014-11-13 2014-09-30 13F AON SHS CL A G0408V102 0 -39 -100.00 0 -100.00
2014-08-14 2014-06-30 13F AON SHS CL A G0408V102 39 39 -94.78 4 -91.67 0.0014
2013-11-13 2013-09-30 13F AON SHS CL A G0408V102 0 -747 -100.00 0 -100.00
2013-08-14 2013-06-30 13F AON SHS CL A G0408V102 747 747 48 0.0248
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.