Aon plc
DE ˙ DB ˙ IE00BLP1HW54
270,60 € ↓ -1,70 (-0,62%)
2026-06-04
DEL PRIS
SecurityDE:4VK / Aon plc
InstitutionRenaissance Technologies Llc
ManagerJames Simons
Latest Disclosed Ownership11,601 shares
Latest Disclosed Value $ 3,744,571
Renaissance Technologies Llc ownership in 4VK / Aon plc

On May 14, 2026 - Renaissance Technologies Llc filed a 13F-HR form disclosing ownership of 11,601 shares of Aon plc (DE:4VK) valued at $3,249,440 USD as of March 31, 2026. The entity filed a previous 13F-HR on August 13, 2025 disclosing 0 shares of Aon plc. The current value of the position is $3,139,231 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 11,601 11,601 3,745 0.0059
2025-08-13 2025-06-30 13F AON SHS CL A G0403H108 0 -35,101 -100.00 0 -100.00
2025-05-14 2025-03-31 13F AON SHS CL A G0403H108 35,101 -102,300 -74.45 14,008 -71.61 0.0212
2025-02-13 2024-12-31 13F AON SHS CL A G0403H108 137,401 -43,900 -24.21 49,349 -21.33 0.0731
2024-11-13 2024-09-30 13F AON SHS CL A G0403H108 181,301 103,300 132.43 62,728 173.93 0.0943
2024-08-09 2024-06-30 13F AON SHS CL A G0403H108 78,001 -143,700 -64.82 22,900 31,268.49 0.0388
2024-05-13 2024-03-31 13F AON SHS CL A G0403H108 221,701 92,261 71.28 74 97.30 0.1163
2024-02-13 2023-12-31 13F AON SHS CL A G0403H108 129,440 129,440 38 0.0583
2023-05-12 2023-03-31 13F AON SHS CL A G0403H108 0 -51,800 -100.00 0 -100.00
2023-02-13 2022-12-31 13F AON SHS CL A G0403H108 51,800 -35,200 -40.46 16 -99.94 0.0213
2022-11-14 2022-09-30 13F AON SHS CL A G0403H108 87,000 -151,100 -63.46 23,305 -63.71 0.0330
2022-08-12 2022-06-30 13F AON SHS CL A G0403H108 238,100 -2,600 -1.08 64,211 -18.08 0.0760
2022-05-13 2022-03-31 13F AON SHS CL A G0403H108 240,700 37,000 18.16 78,379 28.02 0.0920
2022-02-11 2021-12-31 13F AON SHS CL A G0403H108 203,700 93,800 85.35 61,224 94.94 0.0762
2021-11-12 2021-09-30 13F AON SHS CL A G0403H108 109,900 -1,435,201 -92.89 31,406 -91.49 0.0406
2021-08-13 2021-06-30 13F AON SHS CL A G0403H108 1,545,101 443,823 40.30 368,908 45.57 0.4605
2021-05-13 2021-03-31 13F AON SHS CL A G0403H108 1,101,278 956,877 662.65 253,415 730.65 0.3153
2021-02-10 2020-12-31 13F AON SHS CL A G0403H108 144,401 -792,200 -84.58 30,508 -84.21 0.0331
2020-11-13 2020-09-30 13F AON SHS CL A G0403H108 936,601 51,900 5.87 193,221 13.40 0.1929
2020-08-13 2020-06-30 13F AON SHS CL A G0403H108 884,701 692,500 360.30 170,393 437.16 0.1471
2020-05-14 2020-03-31 13F AON SHS CL A G0408V102 192,201 192,201 -78.28 31,721 -81.38 0.0308
2019-11-13 2019-09-30 13F AON SHS CL A G0408V102 0 -47,701 -100.00 0 -100.00
2019-08-12 2019-06-30 13F AON SHS CL A G0408V102 47,701 -349,200 -87.98 9,205 -86.41 0.0081
2019-05-14 2019-03-31 13F AON SHS CL A G0408V102 396,901 340,500 603.71 67,751 726.43 0.0616
2019-02-12 2018-12-31 13F AON SHS CL A G0408V102 56,401 -64,500 -53.35 8,198 -55.91 0.0090
2018-11-13 2018-09-30 13F AON SHS CL A G0408V102 120,901 -374,600 -75.60 18,592 -72.65 0.0191
2018-08-13 2018-06-30 13F/A-1 AON SHS CL A G0408V102 495,501 65,700 15.29 67,968 12.69 0.0741
2018-08-13 2018-06-30 13F AON SHS CL A G0408V102 429,801 60,314
2018-05-14 2018-03-31 13F AON SHS CL A G0408V102 429,801 -343,600 -44.43 60,314 -41.80 0.0660
2018-02-13 2017-12-31 13F AON SHS CL A G0408V102 773,401 747,001 2,829.55 103,636 2,586.96 0.1143
2017-11-13 2017-09-30 13F AON SHS CL A G0408V102 26,400 26,400 -96.59 3,857 -96.28 0.0045
2017-08-11 2017-06-30 13F AON SHS CL A G0408V102 0 -641,401 -100.00 0 -100.00
2017-05-12 2017-03-31 13F AON SHS CL A G0408V102 641,401 -79,200 -10.99 76,128 -5.28 0.1064
2017-02-13 2016-12-31 13F AON SHS CL A G0408V102 720,601 478,500 197.64 80,369 195.11 0.1272
2016-11-14 2016-09-30 13F AON SHS CL A G0408V102 242,101 -184,800 -43.29 27,234 -41.60 0.0481
2016-08-12 2016-06-30 13F AON SHS CL A G0408V102 426,901 265,100 163.84 46,630 175.92 0.0888
2016-05-13 2016-03-31 13F AON SHS CL A G0408V102 161,801 161,801 -62.10 16,900 -63.76 0.0321
2016-02-11 2015-12-31 13F AON SHS CL A G0408V102 0 -79,301 -100.00 0 -100.00
2015-11-12 2015-09-30 13F AON SHS CL A G0408V102 79,301 79,301 0.00 7,027 0.0168
2015-08-14 2015-06-30 13F AON SHS CL A G0408V102 0 -571,201 -100.00 0 -100.00
2015-05-13 2015-03-31 13F AON SHS CL A G0408V102 571,201 571,201 0.00 54,904 0.1169
2014-11-12 2014-09-30 13F AON SHS CL A G0408V102 0 -136,601 -100.00 0 -100.00
2014-08-13 2014-06-30 13F AON SHS CL A G0408V102 136,601 -28,345 -17.18 12,306 -11.48 0.0287
2014-05-14 2014-03-31 13F AON SHS CL A G0408V102 164,946 164,946 13,902 0.0333
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.