Aon plc
DE ˙ DB ˙ IE00BLP1HW54
272,30 € ↓ -1,70 (-0,62%)
2026-06-03
DEL PRIS
SecurityDE:4VK / Aon plc
InstitutionAsset Management One Co., Ltd.
Latest Disclosed Ownership94,239 shares
Latest Disclosed Value $ 30,418,464
Asset Management One Co., Ltd. reports 0.32% decrease in ownership of 4VK / Aon plc

On May 8, 2026 - Asset Management One Co., Ltd. filed a 13F-HR form disclosing ownership of 94,239 shares of Aon plc (DE:4VK) valued at $26,396,344 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 94,545 shares of Aon plc. This represents a change in shares of -0.32% during the quarter. The current value of the position is $25,661,280 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)
2026-05-08 2026-03-31 13F AON SHS CL A G0403H108 94,239 -306 -0.32 30,418 -9.79 0.0897
2026-01-27 2025-12-31 13F AON SHS CL A G0403H108 94,545 -217 -0.23 33,721 -0.21 0.0938
2025-10-22 2025-09-30 13F AON SHS CL A G0403H108 94,762 4,812 5.35 33,790 5.30 0.0979
2025-07-31 2025-06-30 13F AON SHS CL A G0403H108 89,950 2,992 3.44 32,091 -7.53 0.1006
2025-04-23 2025-03-31 13F AON SHS CL A G0403H108 86,958 3,857 4.64 34,704 15.88 0.1200
2025-01-30 2024-12-31 13F AON SHS CL A G0403H108 83,101 2,093 2.58 29,948 6.85 0.1029
2024-10-30 2024-09-30 13F AON SHS CL A G0403H108 81,008 -595 -0.73 28,028 16.99 0.0997
2024-07-18 2024-06-30 13F AON SHS CL A G0403H108 81,603 -2,028 -2.42 23,957 -14.16 0.0917
2024-05-02 2024-03-31 13F AON SHS CL A G0403H108 83,631 -4,701 -5.32 27,909 9.21 0.1076
2024-01-24 2023-12-31 13F AON SHS CL A G0403H108 88,332 -18,334 -17.19 25,555 -26.11 0.1029
2023-10-19 2023-09-30 13F AON SHS CL A G0403H108 106,666 106 0.10 34,583 -5.98 0.1540
2023-07-31 2023-06-30 13F AON SHS CL A G0403H108 106,560 -236 -0.22 36,785 9.25 0.1557
2023-04-25 2023-03-31 13F AON SHS CL A G0403H108 106,796 1,601 1.52 33,672 5.55 0.1526
2023-02-06 2022-12-31 13F AON SHS CL A G0403H108 105,195 -4,405 -4.02 31,901 8.66 0.1555
2022-11-04 2022-09-30 13F AON SHS CL A G0403H108 109,600 951 0.88 29,358 0.20 0.1494
2022-07-29 2022-06-30 13F AON SHS CL A G0403H108 108,649 -4,932 -4.34 29,300 -20.78 0.1376
2022-05-13 2022-03-31 13F AON SHS CL A G0403H108 113,581 -7,332 -6.06 36,985 1.73 0.1444
2022-02-09 2021-12-31 13F AON SHS CL A G0403H108 120,913 -1,121 -0.92 36,355 4.25 0.1267
2021-11-02 2021-09-30 13F AON SHS CL A G0403H108 122,034 -5,203 -4.09 34,873 14.79 0.1337
2021-08-03 2021-06-30 13F AON SHS CL A G0403H108 127,237 -1,218 -0.95 30,379 2.78 0.1130
2021-05-14 2021-03-31 13F AON SHS CL A G0403H108 128,455 -5,769 -4.30 29,558 6.37 0.1174
2021-02-12 2020-12-31 13F AON SHS CL A G0403H108 134,224 -521 -0.39 27,787 -0.04 0.1144
2020-11-13 2020-09-30 13F AON SHS CL A G0403H108 134,745 -12,389 -8.42 27,799 -1.90 0.1278
2020-08-14 2020-06-30 13F AON SHS CL A G0403H108 147,134 -2,503 -1.67 28,338 14.74 0.1394
2020-05-14 2020-03-31 13F AON SHS CL A G0408V102 149,637 14,092 10.40 24,698 -12.52 0.1442
2020-02-14 2019-12-31 13F AON SHS CL A G0408V102 135,545 -2,017 -1.47 28,233 6.02 0.1273
2019-11-14 2019-09-30 13F AON SHS CL A G0408V102 137,562 6,934 5.31 26,629 5.63 0.1283
2019-08-14 2019-06-30 13F AON SHS CL A G0408V102 130,628 11,052 9.24 25,209 23.51 0.1238
2019-05-15 2019-03-31 13F AON SHS CL A G0408V102 119,576 -253,861 -67.98 20,411 -62.40 0.1104
2019-02-13 2018-12-31 13F AON SHS CL A G0408V102 373,437 -11,432 -2.97 54,283 -8.28 0.1294
2018-11-14 2018-09-30 13F AON SHS CL A G0408V102 384,869 -554 -0.14 59,185 11.95 0.1215
2018-08-14 2018-06-30 13F AON SHS CL A G0408V102 385,423 1,011 0.26 52,868 -1.99 0.1155
2018-05-14 2018-03-31 13F AON SHS CL A G0408V102 384,412 -4,245 -1.09 53,944 3.58 0.1215
2018-02-14 2017-12-31 13F AON SHS CL A G0408V102 388,657 -1,053 -0.27 52,080 -8.53 0.1149
2017-11-14 2017-09-30 13F AON SHS CL A G0408V102 389,710 383,128 5,820.84 56,936 6,406.97 0.1337
2017-08-14 2017-06-30 13F AON SHS CL A G0408V102 6,582 -284 -4.14 875 7.36 0.0022
2017-05-11 2017-03-31 13F AON SHS CL A G0408V102 6,866 -30,206 -81.48 815 -80.27 0.0021
2017-05-02 2016-12-31 13F/A-1 AON SHS CL A G0408V102 37,072 1,969 5.61 4,131 5.95 0.0106
2017-02-13 2016-12-31 13F AON SHS CL A G0408V102 37,072 4,131
2016-11-07 2016-09-30 13F AON Com G0408V102 35,103 1,891 5.69 3,899 9.99 0.0579
2016-08-03 2016-06-30 13F AON Com G0408V102 33,212 24 0.07 3,545 2.69 0.0532
2016-05-05 2016-03-31 13F AON Com G0408V102 33,188 0 0.00 3,452 11.07 0.0504
2016-01-28 2015-12-31 13F AON Com G0408V102 33,188 -33,782 -50.44 3,108 -47.51 0.0464
2015-11-12 2015-09-30 13F AON Com G0408V102 66,970 -86,637 -56.40 5,921 -61.47 0.0901
2015-08-06 2015-06-30 13F AON Com G0408V102 153,607 -11,085 -6.73 15,367 -4.82 0.2129
2015-05-11 2015-03-31 13F AON Com G0408V102 164,692 20,352 14.10 16,145 16.65 0.1993
2015-02-09 2014-12-31 13F AON Com G0408V102 144,340 12,804 9.73 13,840 20.21 0.1796
2014-11-05 2014-09-30 13F AON Com G0408V102 131,536 93,214 243.24 11,513 232.55 0.1590
2014-08-12 2014-06-30 13F AON COM G0408V102 38,322 -1,862 -4.63 3,462 4.09 0.0517
2014-05-05 2014-03-31 13F AON COM G0408V102 40,184 1,111 2.84 3,326 2.02 0.0524
2014-02-05 2013-12-31 13F/A-1 AON COM G0408V102 39,073 -7,541 -16.18 3,260 -6.72 0.0505
2014-01-29 2013-12-31 13F AON COM G0408V102 39,073 3,260
2014-02-05 2013-09-30 13F/A-1 AON COM G0408V102 46,614 3,936 9.22 3,495 26.13 0.0526
2013-11-06 2013-09-30 13F AON Com G0408V102 46,614 3,495
2014-02-12 2013-06-30 13F/A-1 AON COM G0408V102 42,678 42,678 2,771 0.0450
2013-08-05 2013-06-30 13F AON Com G0408V102 42,678 2,771
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.