Aon plc
US ˙ NYSE ˙ IE00BLP1HW54

SecurityAON / Aon plc
InstitutionCwm, Llc
Latest Disclosed Ownership29,527 shares
Latest Disclosed Value $ 9,530,801
Cwm, Llc reports 111.95% increase in ownership of AON / Aon plc

On May 14, 2026 - Cwm, Llc filed a 13F-HR form disclosing ownership of 29,527 shares of Aon plc (US:AON) valued at $9,530,725 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 13,931 shares of Aon plc. This represents a change in shares of 111.95% during the quarter. The current value of the position is $9,318,721 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)
2026-05-14 2026-03-31 13F AON SHS CL A G0403H108 29,527 15,596 111.95 9,531 238,150.00 0.0248
2026-01-26 2025-12-31 13F AON SHS CL A G0403H108 13,931 2,471 21.56 5 0.00 0.0133
2025-10-15 2025-09-30 13F AON SHS CL A G0403H108 11,460 95 0.84 4 0.00 0.0123
2025-07-25 2025-06-30 13F AON SHS CL A G0403H108 11,365 -938 -7.62 4 0.00 0.0143
2025-05-01 2025-03-31 13F AON SHS CL A G0403H108 12,303 -12 -0.10 5 0.00 0.0196
2025-02-04 2024-12-31 13F AON SHS CL A G0403H108 12,315 -1,662 -11.89 4 0.00 0.0184
2024-10-08 2024-09-30 13F AON SHS CL A G0403H108 13,977 162 1.17 5 0.00 0.0208
2024-07-10 2024-06-30 13F AON SHS CL A G0403H108 13,815 8,035 139.01 4 300.00 0.0191
2024-04-05 2024-03-31 13F AON SHS CL A G0403H108 5,780 -364 -5.92 2 0.00 0.0094
2024-02-01 2023-12-31 13F AON SHS CL A G0403H108 6,144 -743 -10.79 2 -50.00 0.0096
2023-10-11 2023-09-30 13F AON SHS CL A G0403H108 6,887 70 1.03 2 0.00 0.0137
2023-08-03 2023-06-30 13F AON SHS CL A G0403H108 6,817 -1,154 -14.48 2 0.00 0.0145
2023-05-01 2023-03-31 13F AON SHS CL A G0403H108 7,971 -162 -1.99 3 0.00 0.0170
2023-02-01 2022-12-31 13F AON SHS CL A G0403H108 8,133 782 10.64 2 -99.90 0.0180
2022-10-27 2022-09-30 13F AON SHS CL A G0403H108 7,351 601 8.90 1,969 8.19 0.0156
2022-07-28 2022-06-30 13F AON SHS CL A G0403H108 6,750 -278 -3.96 1,820 -20.49 0.0141
2022-04-21 2022-03-31 13F AON SHS CL A G0403H108 7,028 -519 -6.88 2,289 0.93 0.0162
2022-01-31 2021-12-31 13F AON SHS CL A G0403H108 7,547 -2,620 -25.77 2,268 -6.55 0.0160
2021-09-15 2021-06-30 13F/A-1 AON SHS CL A G0403H108 10,167 0 0.00 2,427 0.00 0.0193
2021-07-29 2021-06-30 13F AON SHS CL A G0403H108 10,167 0 2,427 0.0193
2021-09-15 2021-03-31 13F/A-1 AON SHS CL A G0403H108 10,167 0 0.00 2,427 0.00 0.0193
2021-04-27 2021-03-31 13F AON SHS CL A G0403H108 12,199 2,032 2,807 0.0247
2021-09-15 2020-12-31 13F/A-1 AON SHS CL A G0403H108 10,167 0 0.00 2,427 0.00 0.0193
2021-01-27 2020-12-31 13F AON SHS CL A G0403H108 12,246 2,079 2,587 0.0242
2021-09-15 2020-09-30 13F/A-1 AON SHS CL A G0403H108 10,167 0 0.00 2,427 0.00 0.0193
2020-10-19 2020-09-30 13F AON SHS CL A G0403H108 17,958 7,791 3,705 0.0412
2021-09-15 2020-06-30 13F/A-1 AON SHS CL A G0403H108 10,167 0 0.00 2,427 0.00 0.0193
2020-07-22 2020-06-30 13F AON SHS CL A G0403H108 18,927 8,760 3,645 0.0432
2021-09-15 2020-03-31 13F/A-1 AON SHS CL A G0403H108 10,167 0 0.00 2,427 0.00 0.0193
2020-04-28 2020-03-31 13F AON SHS CL A G0408V102 8,733 -1,434 1,441 0.0215
2021-09-14 2019-12-31 13F/A-1 AON SHS CL A G0403H108 10,167 0 0.00 2,427 0.00 0.0193
2020-01-27 2019-12-31 13F AON SHS CL A G0408V102 514 -9,653 107 0.0014
2021-09-14 2019-09-30 13F/A-1 AON SHS CL A G0403H108 10,167 0 0.00 2,427 0.00 0.0193
2019-10-22 2019-09-30 13F AON SHS CL A G0408V102 506 -9,661 98 0.0014
2021-09-14 2019-06-30 13F/A-1 AON SHS CL A G0403H108 10,167 0 0.00 2,427 0.00 0.0193
2019-07-31 2019-06-30 13F AON SHS CL A G0408V102 506 -9,661 98 0.0016
2021-09-02 2019-03-31 13F/A-1 AON SHS CL A G0403H108 10,167 9,698 2,067.80 2,427 3,469.12 0.0193
2019-04-22 2019-03-31 13F AON SHS CL A G0408V102 449 -20 77 0.0015
2019-01-25 2018-12-31 13F AON SHS CL A G0408V102 469 104 28.49 68 21.43 0.0017
2018-10-29 2018-09-30 13F AON SHS CL A G0408V102 365 -11 -2.93 56 7.69 0.0014
2018-07-31 2018-06-30 13F AON SHS CL A G0408V102 376 32 9.30 52 8.33 0.0017
2018-04-26 2018-03-31 13F AON SHS CL A G0408V102 344 -7 -1.99 48 2.13 0.0019
2018-01-16 2017-12-31 13F AON SHS CL A G0408V102 351 -30 -7.87 47 -16.07 0.0021
2017-10-16 2017-09-30 13F AON SHS CL A G0408V102 381 48 14.41 56 27.27 0.0026
2017-07-17 2017-06-30 13F AON SHS CL A G0408V102 333 0 0.00 44 10.00 0.0023
2017-04-17 2017-03-31 13F AON SHS CL A G0408V102 333 -98 -22.74 40 -16.67 0.0023
2017-01-19 2016-12-31 13F AON SHS CL A G0408V102 431 98 29.43 48 29.73 0.0029
2016-10-17 2016-09-30 13F AON SHS CL A G0408V102 333 0 0.00 37 2.78 0.0026
2016-07-21 2016-06-30 13F AON SHS CL A G0408V102 333 0 0.00 36 2.86 0.0026
2016-04-18 2016-03-31 13F AON SHS CL A G0408V102 333 325 4,062.50 35 3,400.00 0.0031
2016-02-01 2015-12-31 13F AON SHS CL A G0408V102 8 -45 -84.91 1 -75.00 0.0001
2014-02-14 2013-12-31 13F AON SHS CL A G0408V102 53 53 4 0.0006
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.