Aon plc
DE ˙ DB ˙ IE00BLP1HW54
270,60 € ↓ -1,70 (-0,62%)
2026-06-04
DEL PRIS
SecurityDE:4VK / Aon plc
InstitutionStifel Financial Corp
Latest Disclosed Ownership149,135 shares
Latest Disclosed Value $ 48,138,404
Stifel Financial Corp reports 3.26% increase in ownership of 4VK / Aon plc

On May 12, 2026 - Stifel Financial Corp filed a 13F-HR form disclosing ownership of 149,135 shares of Aon plc (DE:4VK) valued at $41,772,714 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 144,432 shares of Aon plc. This represents a change in shares of 3.26% during the quarter. The current value of the position is $40,355,931 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)
2026-05-12 2026-03-31 13F AON SHS CL A G0403H108 149,135 4,703 3.26 48,138 -5.55 0.0104
2026-02-13 2025-12-31 13F AON SHS CL A G0403H108 144,432 858 0.60 50,968 -0.45 0.0458
2025-11-12 2025-09-30 13F AON SHS CL A G0403H108 143,574 -740 -0.51 51,196 -0.56 0.0467
2025-08-14 2025-06-30 13F AON SHS CL A G0403H108 144,314 227 0.16 51,486 -10.47 0.0501
2025-05-14 2025-03-31 13F AON SHS CL A G0403H108 144,087 -5,239 -3.51 57,504 7.22 0.0611
2025-02-13 2024-12-31 13F AON SHS CL A G0403H108 149,326 -4,185 -2.73 53,632 0.98 0.0559
2024-11-14 2024-09-30 13F AON SHS CL A G0403H108 153,511 12,564 8.91 53,113 28.36 0.0557
2024-08-13 2024-06-30 13F AON SHS CL A G0403H108 140,947 -13,729 -8.88 41,379 -19.84 0.0466
2024-05-14 2024-03-31 13F AON SHS CL A G0403H108 154,676 -41,821 -21.28 51,620 -9.73 0.0588
2024-02-12 2023-12-31 13F AON SHS CL A G0403H108 196,497 1,454 0.75 57,185 -9.57 0.0720
2023-11-13 2023-09-30 13F AON SHS CL A G0403H108 195,043 336 0.17 63,238 -5.92 0.0889
2023-08-14 2023-06-30 13F AON SHS CL A G0403H108 194,707 -4,041 -2.03 67,214 7.26 0.0920
2023-05-12 2023-03-31 13F AON SHS CL A G0403H108 198,748 16,476 9.04 62,664 14.54 0.0898
2023-02-13 2022-12-31 13F AON SHS CL A G0403H108 182,272 -86 -0.05 54,708 11.99 0.0821
2022-11-14 2022-09-30 13F AON SHS CL A G0403H108 182,358 -572 -0.31 48,849 -0.98 0.0800
2022-08-15 2022-06-30 13F AON SHS CL A G0403H108 182,930 -2,061 -1.11 49,333 -18.11 0.0772
2022-05-13 2022-03-31 13F AON SHS CL A G0403H108 184,991 13,062 7.60 60,240 16.57 0.0822
2022-02-14 2021-12-31 13F AON SHS CL A G0403H108 171,929 -639 -0.37 51,676 4.79 0.0683
2021-11-15 2021-09-30 13F AON SHS CL A G0403H108 172,568 -3,828 -2.17 49,315 17.09 0.0723
2021-08-13 2021-06-30 13F AON SHS CL A G0403H108 176,396 9,998 6.01 42,117 9.99 0.0630
2021-05-14 2021-03-31 13F AON SHS CL A G0403H108 166,398 16,681 11.14 38,290 21.05 0.0631
2021-02-12 2020-12-31 13F AON SHS CL A G0403H108 149,717 6,562 4.58 31,632 7.10 0.0564
2020-11-16 2020-09-30 13F AON SHS CL A G0403H108 143,155 35,668 33.18 29,534 42.66 0.0608
2020-08-14 2020-06-30 13F AON SHS CL A G0403H108 107,487 81,738 317.44 20,702 392.79 0.0476
2020-05-14 2020-03-31 13F AON SHS CL A G0408V102 25,749 3,551 16.00 4,201 -8.03 0.0116
2020-02-13 2019-12-31 13F AON SHS CL A G0408V102 22,198 3,196 16.82 4,568 23.96 0.0095
2019-11-19 2019-09-30 13F/A-1 AON SHS CL A G0408V102 19,002 3,659 23.85 3,685 24.20 0.0094
2019-11-13 2019-09-30 13F AON SHS CL A G0408V102 18,999 3,656 3,684 2,065.0667
2019-08-14 2019-06-30 13F AON SHS CL A G0408V102 15,343 2,495 19.42 2,967 35.85 0.0077
2019-05-14 2019-03-31 13F AON SHS CL A G0408V102 12,848 -465 -3.49 2,184 12.17 0.0062
2019-02-13 2018-12-31 13F AON SHS CL A G0408V102 13,313 2,732 25.82 1,947 18.50 0.0063
2018-11-13 2018-09-30 13F AON SHS CL A G0408V102 10,581 5,977 129.82 1,643 160.79 0.0047
2018-08-14 2018-06-30 13F AON SHS CL A G0408V102 4,604 264 6.08 630 3.45 0.0019
2018-05-11 2018-03-31 13F AON SHS CL A G0408V102 4,340 731 20.25 609 27.14 0.0019
2018-02-14 2017-12-31 13F AON SHS CL A G0408V102 3,609 542 17.67 479 6.92 0.0015
2017-11-13 2017-09-30 13F AON SHS CL A G0408V102 3,067 562 22.44 448 33.73 0.0016
2017-08-14 2017-06-30 13F AON SHS CL A G0408V102 2,505 177 7.60 335 21.82 0.0012
2017-05-10 2017-03-31 13F AON SHS CL A G0408V102 2,328 -66 -2.76 275 2.23 0.0011
2017-02-16 2016-12-31 13F AON SHS CL A G0408V102 2,394 488 25.60 269 26.29 0.0011
2016-11-15 2016-09-30 13F AON SHS CL A G0408V102 1,906 -436 -18.62 213 -14.80 0.0010
2016-08-17 2016-06-30 13F AON SHS CL A G0408V102 2,342 -1,420 -37.75 250 -36.55 0.0012
2016-05-16 2016-03-31 13F AON SHS CL A G0408V102 3,762 -11,606 -75.52 394 -72.18 0.0021
2016-03-21 2015-12-31 13F/A-2 AON SHS CL A G0408V102 15,368 -20,303 -56.92 1,416 -55.19 0.0074
2016-02-26 2015-12-31 13F/A-1 AON SHS CL A G0408V102 15,368 0 1,416 0.0074
2016-02-16 2015-12-31 13F AON SHS CL A G0408V102 15,368 1,923
2015-11-16 2015-09-30 13F AON SHS CL A G0408V102 35,671 20,061 128.51 3,160 103.35 0.0178
2015-08-17 2015-06-30 13F/A-1 AON SHS CL A G0408V102 15,610 10,190 188.01 1,554 198.27 0.0080
2015-08-17 2015-06-30 13F AON SHS CL A G0408V102 15,596 1,553
2015-05-14 2015-03-31 13F AON SHS CL A G0408V102 5,420 2,185 67.54 521 70.26 0.0029
2015-02-13 2014-12-31 13F AON SHS CL A G0408V102 3,235 3,235 306 0.0017
2014-08-14 2014-06-30 13F AON SHS CL A G0408V102 0 -29,786 -100.00 0 -100.00
2014-05-15 2014-03-31 13F AON SHS CL A G0408V102 29,786 29,786 2,510 0.0240
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.