Aon plc
DE ˙ DB ˙ IE00BLP1HW54
276,10 € ↑5,50 (2,03%)
2026-06-05
DEL PRIS
SecurityDE:4VK / Aon plc
InstitutionKentucky Retirement Systems
Latest Disclosed Ownership24,855 shares
Latest Disclosed Value $ 2,085
Kentucky Retirement Systems reports 88.54% increase in ownership of 4VK / Aon plc

On May 19, 2026 - Kentucky Retirement Systems filed a 13F-HR form disclosing ownership of 24,855 shares of Aon plc (DE:4VK) valued at $6,961,886 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 13,183 shares of Aon plc. This represents a change in shares of 88.54% during the quarter. The current value of the position is $6,862,466 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)
2026-05-19 2026-03-31 13F AON SHS CL A G0408V102 24,855 11,672 88.54 2 -99.96 0.1527
2026-02-10 2025-12-31 13F AON SHS CL A G0403H108 13,183 0 0.00 4,652 -1.02 0.1260
2025-11-13 2025-09-30 13F AON SHS CL A G0403H108 13,183 601 4.78 4,701 4.72 0.1300
2025-08-20 2025-06-30 13F AON SHS CL A G0403H108 12,582 -824 -6.15 4,489 -16.11 0.1313
2025-04-22 2025-03-31 13F AON SHS CL A G0403H108 13,406 -1,523 -10.20 5,350 -0.21 0.1631
2025-02-03 2024-12-31 13F AON SHS CL A G0403H108 14,929 -205 -1.35 5,362 2.39 0.1581
2024-11-06 2024-09-30 13F AON SHS CL A G0403H108 15,134 -1,251 -7.64 5,236 8.86 0.1543
2024-08-12 2024-06-30 13F AON SHS CL A G0403H108 16,385 1,180 7.76 4,810 -5.20 0.1394
2024-05-15 2024-03-31 13F AON SHS CL A G0403H108 15,205 -814 -5.08 5,074 8.86 0.1516
2024-02-08 2023-12-31 13F AON SHS CL A G0403H108 16,019 -40 -0.25 4,662 -10.47 0.1455
2023-10-12 2023-09-30 13F AON SHS CL A G0403H108 16,059 -363 -2.21 5,207 104,020.00 0.1809
2023-08-07 2023-06-30 13F AON SHS CL A G0403H108 16,422 182 1.12 6 0.00 0.1898
2023-05-10 2023-03-31 13F AON SHS CL A G0403H108 16,240 -343 -2.07 5 25.00 0.1886
2023-02-06 2022-12-31 13F AON SHS CL A G0403H108 16,583 72 0.44 5 -99.91 0.1963
2022-11-16 2022-09-30 13F AON SHS CL A G0403H108 16,511 748 4.75 4,423 4.05 0.1876
2022-08-08 2022-06-30 13F AON SHS CL A G0403H108 15,763 2,072 15.13 4,251 -4.64 0.1795
2022-05-09 2022-03-31 13F AON SHS CL A G0403H108 13,691 204 1.51 4,458 9.97 0.1827
2022-02-04 2021-12-31 13F AON SHS CL A G0403H108 13,487 306 2.32 4,054 7.62 0.1648
2021-11-17 2021-09-30 13F AON SHS CL A G0403H108 13,181 41 0.31 3,767 20.08 0.1772
2021-08-12 2021-06-30 13F AON SHS CL A G0403H108 13,140 -772 -5.55 3,137 -2.00 0.1483
2021-05-14 2021-03-31 13F AON SHS CL A G0403H108 13,912 145 1.05 3,201 10.04 0.1565
2021-02-11 2020-12-31 13F AON SHS CL A G0403H108 13,767 259 1.92 2,909 4.38 0.1501
2020-11-12 2020-09-30 13F AON SHS CL A G0403H108 13,508 643 5.00 2,787 12.47 0.1720
2020-08-12 2020-06-30 13F AON SHS CL A G0403H108 12,865 -3,126 -19.55 2,478 -6.10 0.1739
2020-05-01 2020-03-31 13F AON SHS CL A G0408V102 15,991 3,946 32.76 2,639 5.18 0.1804
2020-02-18 2019-12-31 13F AON SHS CL A G0408V102 12,045 -40 -0.33 2,509 7.27 0.1826
2019-11-05 2019-09-30 13F AON SHS CL A G0408V102 12,085 884 7.89 2,339 8.19 0.1858
2019-08-07 2019-06-30 13F/A-1 AON SHS CL A G0408V102 11,201 708 6.75 2,162 20.71 0.1906
2019-08-07 2019-06-30 13F AON SHS CL A G0408V102 11,201 708 2,162
2019-05-22 2019-03-31 13F AON SHS CL A G0408V102 10,493 17 0.16 1,791 17.60 0.1733
2019-02-25 2018-12-31 13F AON SHS CL A G0408V102 10,476 143 1.38 1,523 -4.15 0.1669
2018-11-19 2018-09-30 13F/A-1 AON SHS CL A G0408V102 10,333 -48 -0.46 1,589 11.59 0.1519
2018-11-16 2018-09-30 13F AON SHS CL A G0408V102 24,855 14,474 2,085
2018-08-13 2018-06-30 13F AON SHS CL A G0408V102 10,381 -2,467 -19.20 1,424 -21.02 0.1457
2018-05-07 2018-03-31 13F AON SHS CL A G0408V102 12,848 -2,562 -16.63 1,803 -12.69 0.1536
2018-02-13 2017-12-31 13F AON SHS CL A G0408V102 15,410 -681 -4.23 2,065 -12.17 0.1471
2017-11-08 2017-09-30 13F AON SHS CL A G0408V102 16,091 -709 -4.22 2,351 5.24 0.1775
2017-08-18 2017-06-30 13F AON SHS CL A G0408V102 16,800 -36 -0.21 2,234 11.81 0.1679
2017-05-24 2017-03-31 13F AON SHS CL A G0408V102 16,836 -2,255 -11.81 1,998 -6.15 0.1538
2017-02-24 2016-12-31 13F AON SHS CL A G0408V102 19,091 -1,208 -5.95 2,129 -6.75 0.1523
2016-11-30 2016-09-30 13F AON SHS CL A G0408V102 20,299 -2,229 -9.89 2,283 -7.23 0.1519
2016-09-12 2016-06-30 13F AON SHS CL A G0408V102 22,528 -2,285 -9.21 2,461 -5.05 0.1592
2016-06-09 2016-03-31 13F AON SHS CL A G0408V102 24,813 4,008 19.26 2,592 35.14 0.1573
2016-02-22 2015-12-31 13F AON SHS CL A G0408V102 20,805 1,589 8.27 1,918 12.62 0.1412
2015-11-18 2015-09-30 13F AON SHS CL A G0408V102 19,216 206 1.08 1,703 -10.13 0.1467
2015-08-26 2015-06-30 13F AON SHS CL A G0408V102 19,010 147 0.78 1,895 4.52 0.1542
2015-05-29 2015-03-31 13F AON SHS CL A G0408V102 18,863 -2,333 -11.01 1,813 -9.80 0.1472
2015-03-04 2014-12-31 13F AON SHS CL A G0408V102 21,196 -1,400 -6.20 2,010 1.46 0.1482
2014-12-12 2014-09-30 13F AON SHS CL A G0408V102 22,596 -2,363 -9.47 1,981 -5.85 0.1454
2014-05-22 2014-03-31 13F AON SHS CL A G0408V102 24,959 104 0.42 2,104 0.91 0.1520
2014-02-13 2013-12-31 13F AON SHS CL A G0408V102 24,855 -683 -2.67 2,085 9.68 0.1527
2013-11-15 2013-09-30 13F AON SHS CL A G0408V102 25,538 25,538 1,901 0.1531
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.