Aon plc
DE ˙ DB ˙ IE00BLP1HW54
276,10 € ↑5,50 (2,03%)
2026-06-05
DEL PRIS
SecurityDE:4VK / Aon plc
InstitutionRBF Capital, LLC
Latest Disclosed Ownership3,000 shares
Latest Disclosed Value $ 968,340
RBF Capital, LLC ownership in 4VK / Aon plc

On May 18, 2026 - RBF Capital, LLC filed a 13F-HR/A form disclosing ownership of 3,000 shares of Aon plc (DE:4VK) valued at $840,300 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 17, 2026 disclosing 3,000 shares of Aon plc. This represents a change in shares of 0.00% during the quarter. The current value of the position is $828,300 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)
2026-05-18 2026-03-31 13F/A-1 AON SHS CL A G0403H108 3,000 0 0.00 968 -8.51 0.0473
2026-05-14 2026-03-31 13F AON SHS CL A G0403H108 3,000 0 968 0.0507
2026-02-17 2025-12-31 13F/A-1 AON SHS CL A G0403H108 3,000 0 0.00 1,059 -1.03 0.0470
2026-02-17 2025-12-31 13F AON SHS CL A G0403H108 3,000 0 1,059 0.0470
2025-11-14 2025-09-30 13F AON SHS CL A G0403H108 3,000 0 0.00 1,070 -0.09 0.0477
2025-08-14 2025-06-30 13F AON SHS CL A G0403H108 3,000 0 0.00 1,070 -10.61 0.0509
2025-05-15 2025-03-31 13F AON SHS CL A G0403H108 3,000 0 0.00 1,197 11.14 0.0719
2025-02-14 2024-12-31 13F AON SHS CL A G0403H108 3,000 -1,100 -26.83 1,077 -24.05 0.0558
2024-11-14 2024-09-30 13F AON SHS CL A G0403H108 4,100 0 0.00 1,419 17.87 0.0711
2024-08-14 2024-06-30 13F AON SHS CL A G0403H108 4,100 0 0.00 1,204 -12.06 0.0692
2024-05-15 2024-03-31 13F AON SHS CL A G0403H108 4,100 0 0.00 1,368 14.67 0.0765
2024-02-14 2023-12-31 13F AON SHS CL A G0403H108 4,100 0 0.00 1,193 -10.23 0.0722
2023-11-14 2023-09-30 13F AON SHS CL A G0403H108 4,100 0 0.00 1,329 -6.08 0.0873
2023-08-14 2023-06-30 13F AON SHS CL A G0403H108 4,100 0 0.00 1,415 9.52 0.0882
2023-05-16 2023-03-31 13F AON SHS CL A G0403H108 4,100 0 0.00 1,293 4.96 0.0939
2023-02-14 2022-12-31 13F AON SHS CL A G0403H108 4,100 0 0.00 1,231 12.11 0.0925
2022-11-14 2022-09-30 13F AON SHS CL A G0403H108 4,100 0 0.00 1,098 -0.72 0.0925
2022-08-15 2022-06-30 13F AON SHS CL A G0403H108 4,100 0 0.00 1,106 -17.34 0.0769
2022-05-16 2022-03-31 13F AON SHS CL A G0403H108 4,100 0 0.00 1,338 8.60 0.0855
2022-02-14 2021-12-31 13F AON SHS CL A G0403H108 4,100 0 0.00 1,232 5.12 0.0758
2021-11-15 2021-09-30 13F AON SHS CL A G0403H108 4,100 0 0.00 1,172 19.71 0.0654
2021-08-16 2021-06-30 13F AON SHS CL A G0403H108 4,100 0 0.00 979 3.82 0.0547
2021-05-17 2021-03-31 13F AON SHS CL A G0403H108 4,100 0 0.00 943 8.89 0.0588
2021-03-02 2020-12-31 13F/A-1 AON SHS CL A G0403H108 4,100 0 0.00 866 2.36 0.0662
2020-11-16 2020-09-30 13F/A-1 AON SHS CL A G0403H108 4,100 0 0.00 846 7.09 0.0853
2020-11-16 2020-09-30 13F AON SHS CL A G0403H108 56,000 3,017
2020-08-14 2020-06-30 13F AON SHS CL A G0403H108 4,100 0 0.00 790 16.69 0.0852
2020-05-18 2020-03-31 13F AON SHS CL A G0408V102 4,100 0 0.00 677 -20.73 0.0886
2020-02-13 2019-12-31 13F AON SHS CL A G0408V102 4,100 0 0.00 854 7.56 0.0816
2019-11-13 2019-09-30 13F AON SHS CL A G0408V102 4,100 0 0.00 794 0.38 0.0890
2019-08-13 2019-06-30 13F AON SHS CL A G0408V102 4,100 0 0.00 791 13.00 0.0796
2019-05-15 2019-03-31 13F AON SHS CL A G0408V102 4,100 0 0.00 700 17.45 0.0822
2019-02-14 2018-12-31 13F AON SHS CL A G0408V102 4,100 -1,000 -19.61 596 -23.98 0.0778
2018-11-14 2018-09-30 13F AON SHS CL A G0408V102 5,100 1,000 24.39 784 39.50 0.0850
2018-08-14 2018-06-30 13F AON SHS CL A G0408V102 4,100 0 0.00 562 -2.26 0.0661
2018-05-15 2018-03-31 13F AON SHS CL A G0408V102 4,100 0 0.00 575 4.74 0.0685
2018-02-14 2017-12-31 13F AON SHS CL A G0408V102 4,100 0 0.00 549 -8.35 0.0606
2017-11-14 2017-09-30 13F AON SHS CL A G0408V102 4,100 0 0.00 599 9.91 0.0758
2017-08-14 2017-06-30 13F AON SHS CL A G0408V102 4,100 0 0.00 545 11.91 0.0715
2017-05-15 2017-03-31 13F AON SHS CL A G0408V102 4,100 0 0.00 487 6.56 0.0667
2017-02-14 2016-12-31 13F AON SHS CL A G0408V102 4,100 0 0.00 457 -0.87 0.0651
2016-11-14 2016-09-30 13F AON SHS CL A G0408V102 4,100 0 0.00 461 2.90 0.0789
2016-08-15 2016-06-30 13F AON SHS CL A G0408V102 4,100 0 0.00 448 4.67 0.0890
2016-05-16 2016-03-31 13F AON PLC CMN Common Stock G0408V102 4,100 -4,900 -54.44 428 -48.43 0.0820
2016-02-16 2015-12-31 13F AON PLC CMN Common Stock G0408V102 9,000 3,000 50.00 830 56.02 0.1561
2015-11-16 2015-09-30 13F AON PLC CMN Common Stock G0408V102 6,000 0 0.00 532 -11.04 0.1108
2015-08-14 2015-06-30 13F AON PLC CMN Common Stock G0408V102 6,000 0 0.00 598 3.64 0.1130
2015-05-14 2015-03-31 13F AON PLC CMN Common Stock G0408V102 6,000 3,000 100.00 577 103.17 0.1171
2015-02-13 2014-12-31 13F AON PLC CMN Common Stock G0408V102 3,000 0 0.00 284 7.98 0.0588
2014-11-14 2014-09-30 13F AON PLC CMN Common Stock G0408V102 3,000 0 0.00 263 -2.59 0.0603
2014-08-14 2014-06-30 13F AON PLC CMN Common Stock G0408V102 3,000 0 0.00 270 6.72 0.0649
2014-05-13 2014-03-31 13F AON PLC CMN Common Stock G0408V102 3,000 0 0.00 253 0.40 0.0617
2014-02-14 2013-12-31 13F AON PLC CMN Common Stock G0408V102 3,000 0 0.00 252 13.00 0.0596
2013-11-14 2013-09-30 13F AON PLC CMN Common Stock G0408V102 3,000 3,000 223 0.0592
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.